/* ─────────────────────────────────────────────────────────────
   GIST — paper, ink and a tutor's blue pen.
   Type: Literata (reading + display) · Hanken Grotesk (interface) ·
   IBM Plex Mono (spec codes, labels) · Caveat (hand notes only).
   Design reference: design-mockups/research-v1/gist-paper.html
   ───────────────────────────────────────────────────────────── */

:root {
  /* surfaces + ink */
  --bg: #f5f4f0;          /* the page: warm grey paper */
  --paper: #fcfcfa;       /* a sheet: cards, panels, inputs */
  --paperAlt: #efeee9;
  --ink: #1b1b19;
  --inkSoft: #55544f;     /* graphite */
  --muted: #75736c;       /* pencil */
  --line: #dedcd5;        /* hairline rules */
  --chip: #ecebe5;

  /* pens */
  --accent: #2a4b8d;      /* the tutor's blue pen: the one accent */
  --accent2: #4a6db0;
  --accent3: #2f7a43;     /* the marking pen: "you got it" */
  --accent-soft: #e3e9f4;
  --on-accent: #fcfcfa;   /* text on ink / blue */
  --danger: #b3261e;
  --danger-soft: #f9e3e1;
  --glow: rgba(42, 75, 141, 0.14);
  --radial1: transparent;
  --radial2: transparent;
  --shadow-soft: 0 1px 2px rgba(27, 27, 25, 0.06), 0 12px 28px -18px rgba(27, 27, 25, 0.28);

  /* highlighters: from a student's pencil case, one per subject */
  --marker: #f3df6c;
  --hl-green: #bfe6ae; --hl-pink: #f6c1d6; --hl-blue: #bcd6f3; --hl-orange: #f8cc9c; --hl-purple: #d8c6f1;
  --g-marker: var(--marker);
  --g-hl-green: var(--hl-green); --g-hl-pink: var(--hl-pink); --g-hl-blue: var(--hl-blue);
  --g-hl-orange: var(--hl-orange); --g-hl-purple: var(--hl-purple);
  --sticky: #fbe98c;
  --tape: rgba(246, 193, 214, 0.78);

  /* aliases some screens use */
  --card: var(--paper);
  --rule: var(--line);
  --ink-2: var(--inkSoft);
  --ink-3: var(--muted);
  --paper-2: var(--paperAlt);

  --density-pad: 32px;
  --density-gap: 18px;

  --font-serif: "Literata", "Iowan Old Style", Georgia, serif;
  --font-sans: "Hanken Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, Menlo, monospace;
  --font-display: var(--font-serif);
  --font-hand: "Caveat", "Bradley Hand", cursive;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body, #root { height: 100%; overflow: hidden; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  font-size: 15px;
  line-height: 1.5;
}

button { font-family: inherit; cursor: pointer; }

/* ── App shell + ambient bg ───────────────────────────────── */
.app-shell {
  position: relative;
  height: 100%;
  width: 100%;
  overflow: hidden;
  isolation: isolate;
}

.ambient {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}
.ambient-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.9;
}
.ambient-glow-1 {
  width: 520px; height: 520px;
  background: var(--radial1);
  top: -120px; right: -100px;
  animation: float1 22s ease-in-out infinite;
}
.ambient-glow-2 {
  width: 460px; height: 460px;
  background: var(--radial2);
  bottom: -150px; left: -100px;
  animation: float2 28s ease-in-out infinite;
}
[data-motion="minimal"] .ambient-glow { animation: none !important; }

.ambient-grain {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.45 0'/></filter><rect width='200' height='200' filter='url(%23n)' opacity='0.5'/></svg>");
  opacity: 0.18;
  mix-blend-mode: multiply;
}
[data-dark="1"] .ambient-grain { mix-blend-mode: screen; opacity: 0.08; }

@keyframes float1 { 0%, 100% { transform: translate(0,0) scale(1); } 50% { transform: translate(-30px, 40px) scale(1.08); } }
@keyframes float2 { 0%, 100% { transform: translate(0,0) scale(1); } 50% { transform: translate(40px, -30px) scale(1.05); } }

/* ── Shared atoms ─────────────────────────────────────────── */
.mark-glyph {
  font-family: var(--font-serif);
  font-size: 1.3em;
  color: var(--accent);
  font-style: italic;
}
.mark-text {
  font-family: var(--font-mono);
  font-size: 0.78em;
  letter-spacing: 0.1em;
  text-transform: lowercase;
  color: var(--ink);
}

.section-title {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 26px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.01em;
}

/* ── Nav dots (screen switcher) ───────────────────────────── */
.nav-dots {
  position: fixed;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  z-index: 30;
  box-shadow: 0 6px 20px rgba(27,27,25,0.08);
}
.nav-dots-label { color: var(--muted); padding: 0 6px; }
.nav-dot {
  background: transparent;
  border: none;
  color: var(--muted);
  padding: 5px 12px;
  border-radius: 999px;
  letter-spacing: 0.04em;
  text-transform: lowercase;
  transition: all .15s;
}
.nav-dot:hover { color: var(--ink); }
.nav-dot.active { background: var(--accent); color: var(--paper); }

/* ═══════════════════════════════════════════════════════════
   AUTH SCREEN
   ═══════════════════════════════════════════════════════════ */
.auth {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  height: 100%;
  width: 100%;
}

.auth-poster {
  position: relative;
  background: linear-gradient(160deg, var(--paperAlt) 0%, var(--bg) 100%);
  border-right: 1px solid var(--line);
  padding: 48px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.auth-poster::before {
  content: "";
  position: absolute;
  inset: 22px;
  border: 1px solid var(--line);
  border-radius: 4px;
  pointer-events: none;
  opacity: 0.6;
}
.auth-poster::after {
  content: "";
  position: absolute;
  inset: 30px;
  border: 1px dashed var(--line);
  border-radius: 2px;
  pointer-events: none;
  opacity: 0.5;
}

.auth-poster-stamp {
  position: absolute;
  top: 50px; right: 50px;
  width: 90px; height: 90px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
  transform: rotate(-8deg);
  opacity: 0.85;
}
.stamp-text { line-height: 1.3; }
.stamp-eyebrow { letter-spacing: 0.15em; opacity: 0.7; }
.stamp-big { font-family: var(--font-serif); font-style: italic; font-size: 16px; margin-top: 4px; }

.auth-poster-mark {
  display: flex;
  align-items: baseline;
  gap: 8px;
  position: relative;
  z-index: 1;
}

.auth-poster-art {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  gap: 14px;
}
.mug-svg {
  width: 220px; height: 220px;
}
.mug-steam path {
  animation: steam 3.4s ease-in-out infinite;
  transform-origin: bottom;
}
.mug-steam path:nth-child(2) { animation-delay: 0.4s; }
.mug-steam path:nth-child(3) { animation-delay: 0.8s; }
@keyframes steam {
  0%, 100% { opacity: 0.2; transform: translateY(0) scaleX(1); }
  50% { opacity: 0.7; transform: translateY(-4px) scaleX(1.05); }
}
[data-motion="minimal"] .mug-steam path { animation: none; opacity: 0.5; }

.poster-rule {
  width: 80px; height: 1px; background: var(--line);
  margin: 4px 0;
}
.poster-tagline {
  font-family: var(--font-serif);
  text-align: center;
  line-height: 1.05;
  color: var(--ink);
}
.poster-tagline em { font-style: italic; font-size: 22px; color: var(--inkSoft); }
.poster-tagline strong { font-weight: 400; font-size: 56px; letter-spacing: -0.02em; display: block; }

.poster-postmark {
  margin-top: 12px;
}
.postmark-ring {
  width: 110px; height: 110px;
  border: 1px solid var(--line);
  border-radius: 50%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 8.5px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  gap: 4px;
  animation: spin 40s linear infinite;
}
[data-motion="minimal"] .postmark-ring { animation: none; }
[data-motion="lively"] .postmark-ring { animation-duration: 18s; }
@keyframes spin { to { transform: rotate(360deg); } }

.auth-poster-foot {
  display: flex;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.05em;
  position: relative;
  z-index: 1;
}
.auth-poster-foot .dot { opacity: 0.5; }

/* — Form side — */
.auth-form {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px;
  background: var(--paper);
  overflow-y: auto;
}
.auth-form-inner {
  width: 100%;
  max-width: 420px;
}
.auth-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: lowercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 14px;
}
.auth-title {
  font-family: var(--font-serif);
  font-size: 56px;
  font-weight: 400;
  line-height: 1;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}
.auth-title em {
  font-style: italic;
  color: var(--accent);
}
.auth-blurb {
  font-size: 14px;
  color: var(--inkSoft);
  line-height: 1.6;
  max-width: 360px;
  margin-bottom: 28px;
}

.auth-tabs {
  display: flex;
  gap: 4px;
  background: var(--paperAlt);
  padding: 4px;
  border-radius: 10px;
  margin-bottom: 20px;
  width: fit-content;
}
.auth-tab {
  background: transparent;
  border: none;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  border-radius: 7px;
  font-family: var(--font-mono);
  text-transform: lowercase;
  letter-spacing: 0.04em;
  transition: all .15s;
}
.auth-tab.on {
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 1px 3px rgba(27,27,25,0.08);
}

.auth-fields { display: flex; flex-direction: column; gap: 16px; }
.auth-field { display: flex; flex-direction: column; gap: 6px; }
.auth-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: lowercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}
.auth-input {
  background: transparent;
  border: none;
  border-bottom: 1.5px solid var(--line);
  padding: 8px 0;
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--ink);
  outline: none;
  transition: border-color .2s;
  width: 100%;
}
.auth-input:focus { border-color: var(--accent); }

.auth-submit {
  margin-top: 12px;
  background: var(--ink);
  color: var(--paper);
  border: none;
  padding: 14px 22px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: lowercase;
  letter-spacing: 0.1em;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  align-self: flex-start;
  transition: all .2s;
}
.auth-submit:hover {
  background: var(--accent);
  transform: translateY(-1px);
}
.auth-submit-arrow {
  font-family: var(--font-serif);
  font-size: 18px;
  transition: transform .2s;
}
.auth-submit:hover .auth-submit-arrow { transform: translateX(4px); }

.auth-foot {
  margin-top: 22px;
  font-size: 13px;
  color: var(--muted);
  display: flex;
  gap: 6px;
}
.auth-foot-link {
  background: none; border: none;
  color: var(--accent);
  font-family: inherit;
  font-size: 13px;
  border-bottom: 1px solid currentColor;
  padding: 0;
}

.auth-marginalia {
  margin-top: 38px;
  padding-top: 18px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--muted);
  display: flex;
  gap: 6px;
  align-items: baseline;
}

/* ═══════════════════════════════════════════════════════════
   ONBOARDING
   ═══════════════════════════════════════════════════════════ */
.onboard {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  overflow-y: auto;
}
.onboard-card {
  display: grid;
  grid-template-columns: 240px 1fr;
  width: 100%;
  max-width: 920px;
  min-height: 580px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow:
    0 1px 0 var(--line),
    0 30px 60px -20px rgba(27,27,25,0.18),
    0 12px 24px -16px rgba(27,27,25,0.12);
  overflow: hidden;
  position: relative;
}
.onboard-card::before {
  content: "";
  position: absolute;
  left: 240px; top: 0; bottom: 0;
  width: 1px;
  background: var(--line);
}

.onboard-spine {
  background: var(--paperAlt);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  border-right: 0;
  position: relative;
}
.onboard-spine::after {
  content: "";
  position: absolute;
  right: 0; top: 24px; bottom: 24px;
  width: 1px;
  background-image: linear-gradient(to bottom, var(--line) 50%, transparent 50%);
  background-size: 1px 6px;
}
.onboard-mark {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink);
  margin-bottom: 32px;
}
.onboard-tabs {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}
.onboard-tab {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: lowercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  cursor: default;
  transition: all .15s;
  position: relative;
}
.onboard-tab.done { color: var(--inkSoft); cursor: pointer; }
.onboard-tab.done:hover { background: var(--paper); }
.onboard-tab.current { background: var(--paper); color: var(--ink); }
.onboard-tab.current::before {
  content: "";
  position: absolute;
  left: -24px; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 24px;
  background: var(--accent);
  border-radius: 0 2px 2px 0;
}
.onboard-tab-num { font-weight: 500; opacity: 0.6; }
.onboard-tab-label { flex: 1; }
.onboard-tab-tick { color: var(--accent); }

.onboard-spine-foot {
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
}
.onboard-spine-foot em { display: block; font-style: italic; margin-bottom: 4px; }
.onboard-spine-foot span { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em; opacity: 0.7; }

.onboard-page {
  padding: 40px 48px;
  display: flex;
  flex-direction: column;
  background:
    repeating-linear-gradient(transparent 0 31px, rgba(27,27,25,0.04) 31px 32px);
  position: relative;
}

.onboard-page-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}
.onboard-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: lowercase;
  letter-spacing: 0.12em;
  color: var(--accent);
}
.onboard-progress {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
}
.onboard-progress-track {
  width: 80px; height: 3px;
  background: var(--paperAlt);
  border-radius: 2px;
  overflow: hidden;
}
.onboard-progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  transition: width .35s cubic-bezier(.4,0,.2,1);
}

.onboard-title {
  font-family: var(--font-serif);
  font-size: 44px;
  font-weight: 400;
  line-height: 1.05;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  text-wrap: pretty;
}
.onboard-sub {
  font-size: 14px;
  color: var(--inkSoft);
  margin-bottom: 28px;
  max-width: 460px;
  line-height: 1.6;
}

.onboard-ui { flex: 1; min-height: 200px; }

/* Text field */
.ob-textfield {
  position: relative;
  margin-top: 8px;
}
.ob-textfield input {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 28px;
  color: var(--ink);
  padding: 12px 0;
}
.ob-textfield input::placeholder { color: var(--muted); opacity: 0.5; }
.ob-textfield-rule {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--line);
  position: relative;
  overflow: hidden;
}
.ob-textfield-rule::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s;
}
.ob-textfield input:focus ~ .ob-textfield-rule::after { transform: scaleX(1); }

/* Picker */
.ob-picker {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.ob-pick {
  background: var(--paper);
  border: 1.5px solid var(--line);
  border-radius: 4px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left;
  transition: all .15s;
}
.ob-pick:hover { border-color: var(--accent2); background: var(--paperAlt); }
.ob-pick.on { border-color: var(--accent); background: var(--paperAlt); }
.ob-pick-dot {
  width: 14px; height: 14px;
  border-radius: 50%;
  border: 1.5px solid var(--line);
  flex-shrink: 0;
  transition: all .15s;
}
.ob-pick.on .ob-pick-dot {
  border-color: var(--accent);
  background: var(--accent);
  box-shadow: inset 0 0 0 3px var(--paper);
}
.ob-pick-body { flex: 1; min-width: 0; }
.ob-pick-label { display: block; font-size: 14px; font-weight: 500; color: var(--ink); }
.ob-pick-sub { display: block; font-size: 12px; color: var(--muted); margin-top: 2px; }
.ob-pick-check { color: var(--accent); opacity: 0; font-size: 14px; }
.ob-pick.on .ob-pick-check { opacity: 1; }

/* ── Notes shell + mode switch (V2 palette; canvas content lives in
 *    notes-canvas.css under .notes-canvas-root). Flashcards sub-tab is
 *    rendered OUTSIDE .notes-canvas-root so it inherits :root vars from
 *    this file (sunset cafe palette). ─────────────────────────────── */
.notes-screen-shell {
  height: 100%;
  overflow: auto;
  background: var(--bg);
}
.notes-shell-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 24px;
  border-bottom: 1px dashed var(--line);
  background: var(--bg);
}
.notes-shell-back {
  background: none; border: none; color: var(--muted); cursor: pointer;
  font-family: var(--font-mono); font-size: 12px; padding: 0;
  letter-spacing: 0.04em;
}
.notes-shell-back:hover { color: var(--accent); }
.notes-shell-error {
  color: var(--accent); padding: 10px 14px;
  background: rgba(42,75,141,0.08);
  border: 1px solid rgba(42,75,141,0.2);
  border-radius: 6px;
  margin: 14px 24px;
}
.notes-mode-switch {
  display: inline-flex; gap: 4px;
  background: var(--paperAlt); padding: 4px; border-radius: 999px;
  border: 1px solid var(--line);
}
.notes-mode-switch-btn {
  background: none; border: none; padding: 6px 16px;
  border-radius: 999px; cursor: pointer;
  font-family: var(--font-mono); font-size: 12px;
  color: var(--muted); letter-spacing: 0.04em;
}
.notes-mode-switch-btn.on {
  background: var(--paper); color: var(--ink);
  box-shadow: 0 1px 2px rgba(0,0,0,0.06);
}

/* ── Flashcards sub-view (kept exactly as Section B shipped) ───────── */
.notes-flashcards {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
  padding: 30px 0;
}
.notes-flashcards-empty {
  font-family: var(--font-mono); font-size: 13px; color: var(--muted);
  padding: 50px 30px; text-align: center;
}
.flashcard-progress {
  font-family: var(--font-mono); font-size: 11px; color: var(--muted);
  letter-spacing: 0.06em;
}
.flashcard {
  width: 100%; max-width: 480px; min-height: 280px;
  background: var(--paper); border: 1px solid var(--line);
  border-radius: 12px; padding: 28px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  cursor: pointer;
  display: flex; align-items: stretch;
  transition: border-color .15s ease;
}
.flashcard:hover { border-color: var(--accent); }
.flashcard-side {
  flex: 1; display: flex; flex-direction: column; gap: 14px;
}
.flashcard-topic {
  font-family: var(--font-mono); font-size: 11px; color: var(--muted);
  letter-spacing: 0.06em; text-transform: uppercase;
}
.flashcard-cue {
  font-family: var(--font-serif); font-size: 28px; color: var(--ink);
  font-weight: 500; line-height: 1.25; margin-top: 14px;
}
.flashcard-tap {
  margin-top: auto; font-family: var(--font-mono); font-size: 10px;
  color: var(--muted); text-align: center; letter-spacing: 0.06em;
}
.flashcard-back-text {
  font-family: var(--font-sans); font-size: 14px; color: var(--ink);
  line-height: 1.5; white-space: pre-wrap;
}
.flashcard-actions {
  display: flex; gap: 12px; width: 100%; max-width: 480px;
}
.flashcard-btn {
  flex: 1; padding: 12px 18px; border-radius: 8px; cursor: pointer;
  font-family: var(--font-mono); font-size: 13px; border: 1px solid var(--line);
  background: var(--paper); color: var(--ink); transition: all .15s ease;
}
.flashcard-btn:hover:not(:disabled) { border-color: var(--accent); }
.flashcard-btn:disabled { opacity: 0.4; cursor: wait; }
.flashcard-btn-right:hover:not(:disabled) {
  background: var(--accent); color: var(--paper); border-color: var(--accent);
}
.flashcard-meta {
  font-family: var(--font-mono); font-size: 11px; color: var(--muted);
}

/* ── Onboarding: note-style sample (step 6) ─────────────────────────── */
.ob-notesample { display: flex; flex-direction: column; gap: 14px; }
.ob-notesample-row { display: flex; align-items: center; gap: 12px; }
.ob-notesample-pickbtn {
  background: var(--paper);
  border: 1px dashed var(--line);
  color: var(--ink);
  padding: 10px 18px;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  cursor: pointer;
  transition: border-color .15s ease, background .15s ease;
}
.ob-notesample-pickbtn:hover { border-color: var(--accent); background: var(--paperAlt); }
.ob-notesample-clear {
  background: none;
  border: none;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  cursor: pointer;
  text-decoration: underline;
}
.ob-notesample-or {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-align: center;
}
.ob-notesample-text {
  width: 100%;
  min-height: 120px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 14px;
  resize: vertical;
  outline: none;
  transition: border-color .15s ease;
}
.ob-notesample-text:focus { border-color: var(--accent); }
.ob-notesample-text::placeholder { color: var(--muted); opacity: 0.6; }
.ob-notesample-hint {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  text-align: center;
}
.ob-notesample-error {
  color: var(--accent);
  font-size: 12px;
  font-family: var(--font-mono);
}

.onboard-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px dashed var(--line);
}
.onboard-back {
  background: none;
  border: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.06em;
}
.onboard-back:hover { color: var(--ink); }
.onboard-next {
  background: var(--ink);
  color: var(--paper);
  border: none;
  padding: 12px 22px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: lowercase;
  letter-spacing: 0.08em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all .2s;
}
.onboard-next:hover:not(:disabled) {
  background: var(--accent);
  transform: translateY(-1px);
}
.onboard-next:disabled { opacity: 0.35; cursor: not-allowed; }

.onboard-pagenum {
  text-align: center;
  margin-top: 18px;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 13px;
  color: var(--muted);
}

/* ═══════════════════════════════════════════════════════════
   HOMEPAGE
   ═══════════════════════════════════════════════════════════ */
.home {
  height: 100%;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.home-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 40px;
  border-bottom: 1px solid var(--line);
  background: rgba(252,252,250,0.7);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.home-mark { display: flex; align-items: baseline; gap: 8px; }
.home-top-right {
  display: flex;
  align-items: center;
  gap: 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.05em;
}
.home-clock { color: var(--ink); }
.home-signout {
  display: inline-flex; align-items: center; gap: 5px;
  background: none; border: 1px solid var(--line); border-radius: 999px;
  padding: 5px 12px;
  font-family: var(--font-mono); font-size: 11px; color: var(--muted);
  cursor: pointer; letter-spacing: 0.05em; text-transform: lowercase;
  transition: color .15s, border-color .15s, background .15s;
}
.home-signout:hover { color: var(--ink); border-color: var(--ink); background: var(--chip); }
.home-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 16px;
}

.home-main {
  max-width: 1180px;
  margin: 0 auto;
  width: 100%;
  padding: var(--density-pad) 40px 60px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.home-hero { padding: 4px 0 0; }
.home-hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: lowercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 6px;
}
.home-hero-title {
  font-family: var(--font-serif);
  font-size: 26px;
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--inkSoft);
  margin-bottom: 4px;
  text-wrap: pretty;
}
.home-hero-title em { font-style: italic; color: var(--inkSoft); }
.hero-underline {
  position: relative;
  white-space: nowrap;
}
.hero-underline::after {
  content: "";
  position: absolute;
  bottom: 4px; left: -2px; right: -2px;
  height: 12px;
  background: var(--accent);
  opacity: 0.22;
  z-index: -1;
  border-radius: 2px;
  transform: skew(-3deg);
}
.home-hero-sub {
  font-size: 13px;
  color: var(--muted);
  max-width: 560px;
  line-height: 1.55;
}

.home-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--density-gap);
}
@media (max-width: 960px) { .home-grid { grid-template-columns: 1fr; } }

.home-left { display: flex; flex-direction: column; gap: var(--density-gap); }

/* — Pickup card (resume) — */
.pickup {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 28px 32px 24px;
  text-align: left;
  transition: all .25s;
  box-shadow: 0 2px 0 var(--line), 0 12px 28px -16px rgba(27,27,25,0.18);
}
.pickup:hover {
  transform: translateY(-2px);
  box-shadow: 0 2px 0 var(--line), 0 22px 40px -18px rgba(27,27,25,0.22);
}
.pickup-tape {
  position: absolute;
  top: -10px;
  width: 70px; height: 22px;
  background: rgba(42,75,141,0.4);
  border: 1px solid rgba(42,75,141,0.3);
  transform: rotate(-3deg);
  border-radius: 1px;
}
.pickup-tape-l { left: 30px; transform: rotate(-4deg); }
.pickup-tape-r { right: 60px; transform: rotate(3deg); }
.pickup-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: lowercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 14px;
}
.pickup-row {
  display: flex;
  align-items: center;
  gap: 18px;
}
.pickup-emoji {
  font-size: 36px;
  width: 56px; height: 56px;
  background: var(--paperAlt);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.pickup-body { flex: 1; min-width: 0; }
.pickup-mod {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}
.pickup-topic {
  font-family: var(--font-serif);
  font-size: 26px;
  font-style: italic;
  color: var(--ink);
  line-height: 1.2;
  margin-bottom: 6px;
  text-wrap: pretty;
}
.pickup-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  display: flex;
  gap: 6px;
  text-transform: lowercase;
  letter-spacing: 0.04em;
}
.pickup-meta strong { color: var(--ink); font-weight: 500; }
.pickup-dot { opacity: 0.5; }
.pickup-arrow {
  font-family: var(--font-serif);
  font-size: 32px;
  color: var(--accent);
  transition: transform .2s;
  flex-shrink: 0;
}
.pickup:hover .pickup-arrow { transform: translateX(6px); }

.pickup-progress {
  margin-top: 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.pickup-progress-track {
  flex: 1;
  height: 4px;
  background: var(--paperAlt);
  border-radius: 2px;
  overflow: hidden;
}
.pickup-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  border-radius: 2px;
}
.pickup-progress span {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.05em;
}

/* — Modules grid — */
.mods-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: 6px;
}
.section-count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.06em;
}
.mods-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--density-gap);
}
@media (max-width: 700px) { .mods-grid { grid-template-columns: 1fr; } }

.mod-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0;
  text-align: left;
  transition: all .25s cubic-bezier(.4,0,.2,1);
  transform: rotate(var(--rotate, 0deg));
  box-shadow: 0 1px 0 var(--line), 0 8px 20px -12px rgba(27,27,25,0.18);
}
.mod-card:hover {
  transform: rotate(0deg) translateY(-3px);
  box-shadow: 0 1px 0 var(--line), 0 18px 32px -14px rgba(27,27,25,0.22);
  border-color: var(--accent2);
}
[data-motion="minimal"] .mod-card { transform: rotate(0deg); }
.mod-card-inner { padding: 20px 22px 18px; }
.mod-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
}
.mod-emoji {
  font-size: 28px;
  width: 44px; height: 44px;
  background: var(--paperAlt);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mod-streak {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  background: var(--paperAlt);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 10px 3px 8px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.mod-streak-flame { font-size: 10px; }
.mod-name {
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.mod-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.04em;
  margin-top: 4px;
  margin-bottom: 14px;
}
.mod-progress {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.mod-progress-track {
  flex: 1;
  height: 3px;
  background: var(--paperAlt);
  border-radius: 2px;
  overflow: hidden;
}
.mod-progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
}
.mod-progress span {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
}
.mod-foot {
  display: flex;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.04em;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}
.mod-foot strong { color: var(--ink); font-weight: 500; }
.mod-dot { opacity: 0.5; }

.mod-new {
  background: transparent;
  border: 1.5px dashed var(--line);
  border-radius: 6px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 200px;
  transition: all .2s;
  color: var(--muted);
}
.mod-new:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--paperAlt);
}
.mod-new-plus {
  font-family: var(--font-serif);
  font-size: 36px;
  line-height: 1;
}
.mod-new-label {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 17px;
  color: var(--ink);
}
.mod-new:hover .mod-new-label { color: var(--accent); }
.mod-new-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: lowercase;
  letter-spacing: 0.04em;
}

/* — Notebook card: open button fills the card; delete rides the corner — */
.mod-card { position: relative; }
.mod-card-open {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
}
.mod-card-del {
  position: absolute;
  top: 10px; right: 10px;
  z-index: 2;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--muted);
  border-radius: 6px;
  font-size: 11px;
  line-height: 1;
  padding: 4px 7px;
  opacity: 0;
  transition: opacity .15s, color .15s, border-color .15s;
  cursor: pointer;
}
.mod-card:hover .mod-card-del,
.mod-card-del:focus-visible { opacity: 1; }
.mod-card-del:hover { color: var(--danger); border-color: var(--danger); }
.mod-card-del-confirm {
  position: absolute;
  top: 8px; right: 8px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 4px 7px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
}
.mod-card-del-confirm button {
  background: var(--paperAlt);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 2px 7px;
  font: inherit;
  color: var(--ink);
  cursor: pointer;
}
.mod-card-del-confirm button:first-of-type:hover { color: var(--danger); border-color: var(--danger); }

/* — Subject header + switcher (home, folded-in subject page) — */
.subject-switch {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  flex-wrap: wrap;
}
.subject-switch-head {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.subject-switch-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.subject-switch-emoji { font-size: 28px; line-height: 1; }
.subject-switch-name {
  font-family: var(--font-serif);
  font-size: 30px;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.subject-switch-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.04em;
  margin-top: 2px;
}
.subject-switch-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: lowercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  cursor: pointer;
  transition: border-color .15s, color .15s;
}
.subject-switch-toggle:hover { border-color: var(--accent); color: var(--accent); }
.subject-switch-menu {
  position: absolute;
  top: 100%;
  left: auto;
  right: 0;
  margin-top: 6px;
  z-index: 20;
  min-width: 240px;
  padding: 6px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 14px 44px -14px rgba(27,27,25,0.35);
}
.subject-switch-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  border: none;
  background: none;
  border-radius: 7px;
  font: inherit;
  color: var(--ink);
  cursor: pointer;
}
.subject-switch-item:hover,
.subject-switch-item.on { background: var(--paperAlt); }
.subject-switch-item-name { flex: 1; min-width: 0; text-align: left; }
.subject-switch-item-count {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
}

.demo-subject { margin-top: 6px; }

/* — Right rail — */
.home-rail {
  display: flex;
  flex-direction: column;
  gap: var(--density-gap);
}
.rail-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 20px;
}
.rail-card-eyebrow {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: lowercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 12px;
}

.rail-quote-text {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 18px;
  line-height: 1.4;
  color: var(--ink);
  position: relative;
  text-wrap: pretty;
}
.rail-quote-mark {
  font-size: 32px;
  color: var(--accent);
  opacity: 0.5;
  margin-right: 4px;
  vertical-align: -8px;
}
.rail-quote-attr {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.06em;
  margin-top: 12px;
}

.rail-streak-big {
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.rail-streak-num {
  font-family: var(--font-serif);
  font-size: 56px;
  line-height: 1;
  color: var(--accent);
}
.rail-streak-flame { font-size: 24px; }
.rail-streak-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.05em;
  margin-top: 4px;
  margin-bottom: 16px;
}
.rail-week {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 64px;
}
.rail-week-day {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  height: 100%;
  justify-content: flex-end;
}
.rail-week-bar {
  width: 100%;
  background: var(--accent);
  border-radius: 2px;
  min-height: 4px;
  opacity: 0.7;
}
.rail-week-bar.lvl-0 { background: var(--paperAlt); opacity: 1; }
.rail-week-bar.lvl-1 { opacity: 0.35; }
.rail-week-bar.lvl-2 { opacity: 0.55; }
.rail-week-bar.lvl-3 { opacity: 0.75; }
.rail-week-bar.lvl-4 { opacity: 1; }
.rail-week-label {
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--muted);
  text-transform: lowercase;
}
.rail-week-label.today { color: var(--accent); font-weight: 600; }

.rail-stuck-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.rail-stuck-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
  border-bottom: 1px dashed var(--line);
}
.rail-stuck-list li:last-child { border-bottom: none; }
.rail-stuck-tag {
  font-family: var(--font-mono);
  font-size: 9.5px;
  text-transform: lowercase;
  letter-spacing: 0.06em;
  background: var(--chip);
  color: var(--inkSoft);
  padding: 2px 7px;
  border-radius: 999px;
  white-space: nowrap;
}
.rail-stuck-text {
  font-size: 13px;
  color: var(--ink);
  flex: 1;
}
.rail-stuck-foot {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-serif);
  font-size: 13px;
  color: var(--muted);
  font-style: italic;
}

/* ── Shared upload/library buttons ───────────────── */
.library-actions { display: flex; gap: 8px; }
.lib-btn {
  background: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  cursor: pointer;
  letter-spacing: 0.05em;
  transition: color .15s, border-color .15s, background .15s;
}
.lib-btn:hover { color: var(--ink); border-color: var(--accent); background: var(--chip); }

.upload-progress {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
}
.upload-progress.done { color: var(--accent); }
.upload-progress.error { color: var(--danger); }
.upload-progress-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 1s ease-in-out infinite;
}
@keyframes pulse-dot { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

/* ── Home — compact library widget ──────────────── */
.home-library-widget { margin-bottom: 36px; }
.home-library-widget-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.home-lib-card {
  position: relative;
  cursor: pointer;
  background: var(--chip);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px 24px;
  box-shadow: 0 4px 0 var(--line);
  transition: transform .2s, box-shadow .2s, border-color .2s;
  user-select: none;
}
.home-lib-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 0 var(--line);
  border-color: var(--accent);
}
.home-lib-card.drag-over {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, var(--paper));
}
.home-lib-card-tape {
  position: absolute;
  top: -8px;
  width: 48px;
  height: 16px;
  background: var(--accent-soft, color-mix(in srgb, var(--accent) 20%, var(--paper)));
  border: 1px dashed var(--accent);
  opacity: 0.7;
  border-radius: 2px;
}
.home-lib-card-tape-l { left: 18%; transform: rotate(-3deg); }
.home-lib-card-tape-r { right: 18%; transform: rotate(2deg); }

.home-lib-stats {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 14px;
}
.home-lib-preview {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}
.home-lib-preview li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.home-lib-more {
  color: var(--muted) !important;
  font-family: var(--font-mono);
  font-size: 11px !important;
}
.home-lib-open {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.05em;
}
.home-lib-empty {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 14px;
  font-style: italic;
  padding: 16px 0;
}

/* ── Library screen ──────────────────────────────── */
.library {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: var(--paper);
  overflow: hidden;
}
.library-top {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 32px;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 10;
  flex-shrink: 0;
}
.library-back {
  background: none;
  border: none;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
  cursor: pointer;
  padding: 6px 0;
  white-space: nowrap;
}
.library-back:hover { color: var(--accent); }
.library-title {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 22px;
  flex: 1;
  color: var(--ink);
}

.library-main {
  flex: 1;
  overflow-y: auto;
  padding: 24px 32px;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

.library-drop-banner {
  border: 1.5px dashed var(--line);
  border-radius: 12px;
  padding: 12px 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  text-align: center;
  margin-bottom: 20px;
  transition: border-color .2s, background .2s, color .2s;
  letter-spacing: 0.04em;
}
.library-drop-banner.drag-over {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, var(--paper));
  color: var(--accent);
}

.library-search-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}
.library-search {
  flex: 1;
  background: var(--chip);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 14px;
  font-family: var(--font-sans);
  color: var(--ink);
  outline: none;
  transition: border-color .15s;
}
.library-search:focus { border-color: var(--accent); }
.library-search::placeholder { color: var(--muted); }
.library-total {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
}
.library-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
  font-style: italic;
  line-height: 1.8;
}

/* Groups */
.lib-group { margin-bottom: 20px; }
.lib-group-header {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  background: none;
  border: none;
  padding: 10px 0;
  cursor: pointer;
  border-bottom: 1px solid var(--line);
}
.lib-group-header:hover .lib-group-name { color: var(--accent); }
.lib-group-toggle {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  width: 14px;
  flex-shrink: 0;
}
.lib-group-name {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 18px;
  color: var(--ink);
  flex: 1;
  text-align: left;
  transition: color .15s;
}
.lib-group-count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  background: var(--chip);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 10px;
}

.lib-group-body { list-style: none; padding: 4px 0; }

.lib-doc-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  transition: background .15s;
}
.lib-doc-row:hover { background: var(--chip); }
.lib-doc-icon { font-size: 16px; flex-shrink: 0; }
.lib-doc-name {
  flex: 1;
  font-size: 13px;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lib-doc-meta {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  flex-shrink: 0;
}
.lib-doc-delete {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--muted);
  font-size: 14px;
  padding: 2px 6px;
  border-radius: 6px;
  opacity: 0;
  transition: opacity .15s;
  flex-shrink: 0;
}
.lib-doc-row:hover .lib-doc-delete { opacity: 1; }
.lib-doc-delete:hover { color: var(--danger); }
.lib-doc-confirm {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  flex-shrink: 0;
}
.lib-doc-confirm button {
  background: none;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2px 8px;
  cursor: pointer;
  font-size: 11px;
  font-family: var(--font-mono);
  transition: background .15s, color .15s;
}
.lib-doc-confirm button:first-of-type { color: var(--danger); border-color: var(--danger); }
.lib-doc-confirm button:first-of-type:hover { background: var(--danger); color: var(--on-accent); }
.lib-doc-confirm button:last-of-type:hover { background: var(--chip); }

/* Module margin upload row */
.margin-upload-row {
  display: flex;
  gap: 6px;
  margin-top: 8px;
}
.margin-upload-status {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  margin-top: 6px;
  padding: 4px 8px;
}
.margin-upload-status.done { color: var(--accent); }
.margin-upload-status.error { color: var(--danger); }

.home-foot {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.08em;
}

/* ═══════════════════════════════════════════════════════════
   MODULE PAGE
   ═══════════════════════════════════════════════════════════ */
.module {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.module-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 28px;
  border-bottom: 1px solid var(--line);
  background: rgba(252,252,250,0.85);
  backdrop-filter: blur(8px);
  flex-shrink: 0;
}
.module-top-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.module-back {
  background: none;
  border: none;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.06em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.module-back:hover { color: var(--accent); }
/* Mobile-only previous-chats drawer controls — hidden on desktop */
.module-chats-toggle { display: none; background: none; border: none; font-size: 20px; line-height: 1; color: var(--muted); padding: 2px 4px; }
.module-chats-toggle:hover { color: var(--accent); }
.module-chats-backdrop { display: none; }
.module-crumb-sep { color: var(--line); font-family: var(--font-serif); font-size: 18px; }
.module-emoji { font-size: 22px; }
.module-name {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.module-tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: lowercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding: 3px 9px;
  background: var(--paperAlt);
  border-radius: 999px;
}
.module-top-right {
  display: flex;
  align-items: center;
  gap: 14px;
}
.module-streak {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  text-transform: lowercase;
  letter-spacing: 0.04em;
}
.module-avatar {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 14px;
}

.module-body {
  flex: 1;
  display: grid;
  grid-template-columns: 240px 1fr 280px;
  overflow: hidden;
  min-height: 0;
}
@media (max-width: 1100px) { .module-body { grid-template-columns: 220px 1fr; } .module-profile { display: none; } }
@media (max-width: 800px)  { .module-body { grid-template-columns: 1fr; } .module-margin { display: none; } }

.module-margin {
  background: var(--paperAlt);
  border-right: 1px solid var(--line);
  padding: 22px 18px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 26px;
}
.margin-section {}
.margin-eyebrow {
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: lowercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 10px;
}
.margin-sources, .margin-chats {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.margin-source, .margin-chat {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 4px;
  font-size: 12.5px;
  color: var(--inkSoft);
  cursor: pointer;
  transition: background .15s;
}
.margin-source:hover, .margin-chat:hover { background: var(--paper); }
.margin-source.active, .margin-chat.active {
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--line);
  padding: 7px 9px;
}
.margin-source-icon { font-size: 12px; }
.margin-source-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.margin-source-meta {
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--muted);
}
.margin-add {
  background: none;
  border: 1px dashed var(--line);
  border-radius: 4px;
  padding: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  margin-top: 8px;
  width: 100%;
  transition: all .15s;
}
.margin-add:hover { border-color: var(--accent); color: var(--accent); }

.margin-lib-link {
  background: none;
  border: none;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  cursor: pointer;
  padding: 4px 0;
  letter-spacing: 0.04em;
  text-align: left;
}
.margin-lib-link:hover { text-decoration: underline; }

.margin-chat-title {
  flex: 1;
  font-size: 12.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.margin-chat-date {
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--muted);
}

.margin-vibe {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
}
.margin-now { display: flex; align-items: center; gap: 10px; }
.margin-now-cover {
  width: 38px; height: 38px;
  background: var(--ink);
  color: var(--paper);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.margin-now-vinyl {
  font-size: 18px;
  animation: spin 3.5s linear infinite;
}
[data-motion="minimal"] .margin-now-vinyl { animation: none; }
.margin-now-cover::after {
  content: "";
  position: absolute;
  inset: 4px;
  border: 1px dashed var(--paper);
  border-radius: 50%;
  opacity: 0.3;
}
.margin-now-meta { flex: 1; min-width: 0; }
.margin-now-title {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 14px;
  color: var(--ink);
  line-height: 1.2;
}
.margin-now-artist {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  text-transform: lowercase;
}
.margin-now-bars {
  display: flex;
  gap: 3px;
  margin-top: 10px;
  align-items: flex-end;
  height: 18px;
}
.margin-now-bars span {
  flex: 1;
  background: var(--accent);
  border-radius: 1px;
  opacity: 0.6;
  animation: eq 1.4s ease-in-out infinite;
}
.margin-now-bars span:nth-child(1) { animation-delay: 0s; height: 60%; }
.margin-now-bars span:nth-child(2) { animation-delay: 0.2s; height: 90%; }
.margin-now-bars span:nth-child(3) { animation-delay: 0.4s; height: 50%; }
.margin-now-bars span:nth-child(4) { animation-delay: 0.1s; height: 80%; }
.margin-now-bars span:nth-child(5) { animation-delay: 0.3s; height: 65%; }
.margin-now-bars span:nth-child(6) { animation-delay: 0.5s; height: 75%; }
.margin-now-bars span:nth-child(7) { animation-delay: 0.2s; height: 55%; }
[data-motion="minimal"] .margin-now-bars span { animation: none; }
@keyframes eq {
  0%, 100% { transform: scaleY(0.5); }
  50% { transform: scaleY(1); }
}

/* — Center / paper — */
.module-center {
  overflow: hidden;
  padding: 24px;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.module-paper {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow:
    0 1px 0 var(--line),
    0 18px 36px -22px rgba(27,27,25,0.18);
  background-image:
    linear-gradient(to right, rgba(42,75,141,0.18) 0, rgba(42,75,141,0.18) 1px, transparent 1px, transparent 100%);
  background-size: 60px 100%;
  background-position: 50px 0;
}

.paper-eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-bottom: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.06em;
  flex-shrink: 0;
  background: var(--paper);
}
.paper-eyebrow strong { color: var(--ink); font-weight: 500; }
.paper-eyebrow-pill {
  margin-left: auto;
  background: var(--chip);
  color: var(--accent);
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 10px;
}

.chat-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.msg {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  max-width: 85%;
}
.msg-user { align-self: flex-end; flex-direction: row-reverse; }
.msg-avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 15px;
}
.msg-avatar-u {
  background: var(--accent);
  color: var(--paper);
}
.msg-avatar-a {
  background: var(--paperAlt);
  border: 1px solid var(--line);
  color: var(--accent);
}

.msg-bubble {
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 14.5px;
  line-height: 1.6;
  position: relative;
}
.msg-bubble-u {
  background: var(--accent);
  color: var(--paper);
  border-radius: 12px 12px 2px 12px;
}
.msg-bubble-u strong { color: var(--paper); }
.msg-bubble-a {
  background: var(--paperAlt);
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: 12px 12px 12px 2px;
}
.msg-bubble strong { font-weight: 600; }
.msg-text p + p { margin-top: 8px; }

/* ── KaTeX math ─────────────────────────────────────────────── */
.katex { font-size: 1.05em; }
/* Display equations: centre, give them air, let wide ones scroll
   instead of blowing out the bubble / document width. */
.katex-display {
  margin: 0.6em 0;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 3px 0;
}
.katex-display > .katex { text-align: center; }
.msg-math-block { margin: 6px 0; }
.cmp-host .katex-display,
.nd-blocks .katex-display,
.tcell-edit .katex-display { margin: 0.4em 0; }
.msg-speak {
  margin-top: 10px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: lowercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  cursor: pointer;
  transition: all .15s;
}
.msg-speak:hover { color: var(--accent); border-color: var(--accent); }
.msg-speak.is-speaking { color: var(--accent); border-color: var(--accent); }

/* Row holding the per-message action buttons (listen / add to notes) */
.msg-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.msg-actions .msg-speak { margin-top: 10px; }

/* Quiet "add to notes" button — low emphasis, sits next to listen */
.msg-add-note {
  margin-top: 10px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: lowercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  cursor: pointer;
  transition: all .15s;
}
.msg-add-note:hover { color: var(--accent); border-color: var(--accent); }
.msg-add-note:disabled { opacity: 0.5; cursor: default; }

/* Highlighted suggestion chip — appears when the tutor staged a note */
.msg-note-suggest {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 12px;
  padding: 8px 12px;
  background: var(--chip);
  border: 1px solid var(--accent);
  border-radius: 12px;
}
.msg-note-suggest-text {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink);
  letter-spacing: 0.02em;
}
.msg-note-suggest-text em { color: var(--accent); font-style: normal; font-weight: 600; }
.msg-note-suggest-actions { display: flex; align-items: center; gap: 6px; }
.msg-note-suggest-add {
  background: var(--accent);
  color: var(--on-accent);
  border: none;
  border-radius: 999px;
  padding: 4px 14px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: lowercase;
  letter-spacing: 0.04em;
  cursor: pointer;
}
.msg-note-suggest-add:disabled { opacity: 0.6; cursor: default; }
.msg-note-suggest-dismiss {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  line-height: 1;
  padding: 4px 6px;
}
.msg-note-suggest-dismiss:hover { color: var(--ink); }

/* Saved / error confirmation line */
.msg-note-saved {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--accent);
  text-transform: lowercase;
  letter-spacing: 0.04em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.msg-note-saved.msg-note-error { color: var(--muted); }
.msg-note-view {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 2px 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--inkSoft);
  cursor: pointer;
}
.msg-note-view:hover { color: var(--accent); border-color: var(--accent); }

.msg-confusion {
  font-family: var(--font-mono);
  font-size: 10.5px;
  background: var(--chip);
  color: var(--accent);
  padding: 4px 10px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-bottom: 10px;
  text-transform: lowercase;
  letter-spacing: 0.04em;
}

.msg-sources {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.msg-sources-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.05em;
  margin-right: 4px;
}
.msg-source {
  font-family: var(--font-mono);
  font-size: 10.5px;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 3px 9px;
  border-radius: 999px;
  color: var(--inkSoft);
}
button.msg-source-note {
  cursor: pointer;
  color: var(--accent);
  border-color: color-mix(in oklab, var(--accent) 45%, var(--line));
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}
button.msg-source-note:hover {
  background: color-mix(in oklab, var(--accent) 12%, var(--paper));
  border-color: var(--accent);
}

.thinking-dots {
  display: inline-flex;
  gap: 4px;
  padding: 4px 0;
}
.thinking-dots span {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.4;
  animation: think 1.2s infinite ease-in-out;
}
.thinking-dots span:nth-child(2) { animation-delay: 0.2s; }
.thinking-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes think {
  0%, 80%, 100% { transform: scale(0.6); opacity: 0.3; }
  40% { transform: scale(1); opacity: 1; }
}

/* — Compose — */
.module-compose {
  flex-shrink: 0;
  padding: 14px 24px 16px;
  border-top: 1px dashed var(--line);
  background: var(--paper);
  position: relative;
}
/* When the student has dragged the splitter, the dock is a fixed height and
   its rows flex to fill it (the textarea scrolls instead of auto-growing). */
.module-compose.is-sized {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.module-compose.is-sized .compose-row {
  flex: 1 1 auto;
  min-height: 0;
}
.module-compose.is-sized .compose-input {
  height: 100%;
  max-height: none;
}
/* Splitter bar on the top edge of the dock — mirrors .nd-split-handle. */
.compose-grip {
  flex: none;
  height: 12px;
  margin: -14px -24px 4px;
  cursor: ns-resize;
  position: relative;
  touch-action: none;
}
.compose-grip::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 34px;
  height: 4px;
  border-radius: 999px;
  background: var(--line);
  transition: background .15s, width .15s;
}
.compose-grip:hover::before,
.module-compose.dragging .compose-grip::before {
  background: var(--accent);
  width: 46px;
}
.compose-suggest {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.04em;
}
.compose-suggest button {
  background: var(--paperAlt);
  border: 1px solid var(--line);
  color: var(--inkSoft);
  font-family: var(--font-mono);
  font-size: 10.5px;
  padding: 4px 10px;
  border-radius: 999px;
  text-transform: lowercase;
  transition: all .15s;
}
.compose-suggest button:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--chip);
}

.compose-row {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  background: var(--paperAlt);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 8px;
  transition: border-color .15s;
}
.compose-row:focus-within { border-color: var(--accent); }
.compose-attach {
  background: transparent;
  border: none;
  font-size: 18px;
  padding: 6px 8px;
  color: var(--muted);
}
.compose-attach:hover { color: var(--accent); }
.compose-mic {
  background: transparent;
  border: none;
  font-size: 18px;
  line-height: 1;
  padding: 6px 8px;
  cursor: pointer;
  color: var(--muted);
  border-radius: 999px;
  transition: all .15s;
  align-self: center;
}
.compose-mic:hover { color: var(--accent); }
.compose-mic.is-listening {
  color: var(--accent);
  animation: mic-pulse 1.1s ease-in-out infinite;
}
@keyframes mic-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.18); opacity: 0.7; }
}

/* ── Hands-free voice mode ─────────────────────────────────── */
.voice-toggle {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px;
  line-height: 1;
  white-space: nowrap;
  color: var(--muted);
  cursor: pointer;
  transition: all .15s;
  align-self: center;
}
.voice-toggle:hover { color: var(--accent); border-color: var(--accent); }
.voice-toggle.is-active {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--chip);
}
.voice-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  color: var(--muted);
  margin: 0 0 8px 2px;
}
.voice-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
  flex: none;
}
.voice-status--listening .voice-dot { background: var(--accent); animation: mic-pulse 1.1s ease-in-out infinite; }
.voice-status--thinking  .voice-dot { background: var(--accent2); animation: pulse-dot 1s ease-in-out infinite; }
.voice-status--speaking  .voice-dot { background: var(--accent3); animation: pulse-dot .7s ease-in-out infinite; }
.voice-status--idle      .voice-dot { background: var(--muted); }

.compose-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  resize: none;                /* height is driven by auto-grow, or by the dock splitter */
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--ink);
  padding: 8px 4px;
  min-height: 21px;
  max-height: 160px;
  overflow-y: hidden;
  line-height: 1.5;
}
.compose-input::placeholder {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--muted);
  font-size: 15px;
}
.compose-send {
  background: var(--ink);
  color: var(--paper);
  border: none;
  border-radius: 999px;
  padding: 9px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: lowercase;
  letter-spacing: 0.06em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all .15s;
}
.compose-send:hover:not(:disabled) {
  background: var(--accent);
}
.compose-send:disabled { opacity: 0.35; cursor: not-allowed; }
.compose-foot {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.04em;
}
.compose-foot em { font-family: var(--font-serif); font-size: 12px; color: var(--inkSoft); }

/* — Right rail / profile — */
.module-profile {
  background: var(--paperAlt);
  border-left: 1px solid var(--line);
  padding: 22px 18px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.profile-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 16px 18px;
}
.profile-card-eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: lowercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 8px;
}
.profile-card-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 14px;
}
.profile-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 12.5px;
}
.profile-row:last-child { border-bottom: none; }
.profile-row-k {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.05em;
}
.profile-row-v { color: var(--ink); font-weight: 500; }
.profile-pill {
  background: var(--chip);
  color: var(--accent);
  padding: 3px 9px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: lowercase;
  letter-spacing: 0.04em;
}
.profile-conf { display: flex; align-items: center; gap: 8px; }
.profile-conf-track {
  width: 60px; height: 4px;
  background: var(--paperAlt);
  border-radius: 2px;
  overflow: hidden;
}
.profile-conf-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
}
.profile-conf span {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--ink);
}

.profile-conf-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.profile-conf-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--ink);
  font-family: var(--font-serif);
  font-style: italic;
}
.profile-conf-bullet {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.profile-card-note {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.5;
}

.profile-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.profile-stats-grid > div {
  text-align: center;
  padding: 8px 6px;
  background: var(--paperAlt);
  border-radius: 4px;
}
.ps-num {
  font-family: var(--font-serif);
  font-size: 26px;
  color: var(--accent);
  line-height: 1;
}
.ps-lab {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: 0.05em;
  margin-top: 4px;
}

/* ── Scrollbars (subtle) ─────────────────────────────────── */
.chat-scroll::-webkit-scrollbar,
.module-margin::-webkit-scrollbar,
.module-profile::-webkit-scrollbar,
.home::-webkit-scrollbar,
.onboard::-webkit-scrollbar {
  width: 6px;
}
.chat-scroll::-webkit-scrollbar-thumb,
.module-margin::-webkit-scrollbar-thumb,
.module-profile::-webkit-scrollbar-thumb,
.home::-webkit-scrollbar-thumb,
.onboard::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 99px;
}

/* ── Chat markdown rendering ─────────────────────────────── */
.msg-table-wrap {
  overflow-x: auto;
  margin: 12px 0;
  border-radius: 10px;
  border: 1px solid var(--line);
}
.msg-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.msg-table th {
  background: var(--accent);
  color: var(--paper);
  padding: 9px 14px;
  text-align: left;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.03em;
}
.msg-table th:first-child { border-radius: 10px 0 0 0; }
.msg-table th:last-child  { border-radius: 0 10px 0 0; }
.msg-table td {
  padding: 8px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.5;
}
.msg-table tr:last-child td { border-bottom: none; }
.msg-table tr:nth-child(even) td {
  background: color-mix(in srgb, var(--chip) 60%, transparent);
}

/* "save to notes" on a chat table (parity with .msg-mermaid-save). Sits in its
   own right-aligned row above the table — the header row is full-bleed, so an
   overlay button would collide with a column title. opacity (not display) keeps
   the row height reserved so the table never jumps on hover. */
.msg-table-block { margin: 12px 0; }
.msg-table-block .msg-table-wrap { margin: 0; }
.msg-table-save {
  display: block;
  margin: 0 2px 6px auto;
  opacity: 0;
  transition: opacity .15s;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  background: var(--card, var(--on-accent));
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 4px 9px;
  cursor: pointer;
}
.msg-table-save:hover:not(:disabled) { color: var(--ink); border-color: var(--muted); }
.msg-table-save:disabled { cursor: default; }
@media (hover: hover) {
  .msg-table-block:hover .msg-table-save,
  .msg-table-save:focus { opacity: 1; }
}
/* Touch devices have no hover — keep the save-to-notes button visible */
@media (hover: none) {
  .msg-table-save { opacity: 1; }
}

.msg-list {
  padding-left: 20px;
  margin: 8px 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.msg-list li {
  font-size: 14px;
  color: var(--ink);
  line-height: 1.55;
}

.msg-heading {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--ink);
  margin: 14px 0 6px;
}
h2.msg-heading { font-size: 18px; }
h3.msg-heading { font-size: 16px; }
h4.msg-heading { font-size: 14px; }

.msg-hr {
  border: none;
  border-top: 1px solid var(--line);
  margin: 12px 0;
}

/* Mermaid diagrams + code blocks in chat answers */
.msg-mermaid {
  margin: 12px 0;
  padding: 14px;
  background: var(--card, var(--on-accent));
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow-x: auto;
  text-align: center;
}
.msg-mermaid svg { max-width: 100%; height: auto; }
.msg-mermaid-wrap { position: relative; }
@media (hover: hover) {
  .msg-mermaid-wrap:hover .msg-mermaid-save,
  .msg-mermaid-save:focus { opacity: 1; }
}
/* Touch devices have no hover — keep the save-to-notes button visible */
@media (hover: none) {
  .msg-mermaid-save { opacity: 1; }
}
.msg-mermaid-save {
  position: absolute;
  top: 8px;
  right: 8px;
  opacity: 0;
  transition: opacity .15s;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  background: var(--card, var(--on-accent));
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 4px 9px;
  cursor: pointer;
}
.msg-mermaid-save:hover:not(:disabled) { color: var(--ink); border-color: var(--muted); }
.msg-mermaid-save:disabled { cursor: default; }
.msg-mermaid-pending {
  margin: 12px 0;
  padding: 14px;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 14px;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 12px;
}
.msg-code {
  margin: 12px 0;
  padding: 12px 14px;
  background: var(--chip);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.5;
  white-space: pre;
}
.msg-code code { font-family: inherit; background: none; padding: 0; }
.msg-mermaid-failed-note {
  font-size: 12px;
  color: var(--accent);
  margin: 12px 0 -4px;
  font-style: italic;
}

/* ─────────────────────────────────────────────────────────────
   Dynamic onboarding + Subjects/Notebooks (added)
   ───────────────────────────────────────────────────────────── */

/* thinking dots (onboarding + modal) */
.ob-thinking {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 18px;
  color: var(--muted);
  padding: 18px 0;
}
.ob-dots { animation: obBlink 1.2s infinite; }
@keyframes obBlink { 0%,100% { opacity: .3; } 50% { opacity: 1; } }

.onboard-spine-note {
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--muted);
  line-height: 1.5;
  margin-top: 18px;
}

/* live research status line in chat */
.msg-research {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  background: rgba(42,75,141,0.07);
  border: 1px solid rgba(42,75,141,0.18);
  border-radius: 999px;
  padding: 4px 11px;
  margin-bottom: 8px;
}
.msg-research.is-done { opacity: .6; }
.msg-research-spin { display: inline-block; animation: obBlink 1.4s infinite; }

/* ── Subject screen ── */
.subject { min-height: 100%; display: flex; flex-direction: column; }
.subject-body {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 28px;
  padding: 28px 36px 60px;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}
@media (max-width: 900px) { .subject-body { grid-template-columns: 1fr; } }

.subject-explain {
  font-family: var(--font-serif);
  font-size: 15px;
  color: var(--muted);
  line-height: 1.55;
  margin: 6px 0 18px;
  max-width: 60ch;
}

.subject-rail-note {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
  margin: 8px 0 16px;
}

.subject-answers { display: flex; flex-direction: column; gap: 14px; }
.subject-answer-empty { font-size: 13px; color: var(--muted); }
.subject-answer-q {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .03em;
  color: var(--muted);
  margin-bottom: 4px;
}
.subject-answer-a {
  font-family: var(--font-serif);
  font-size: 16px;
  color: var(--ink);
}
.subject-answer-input {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
}
.subject-answer-input:focus { outline: none; border-color: var(--accent); }
.subject-answers-actions {
  display: flex;
  gap: 10px;
  margin-top: 18px;
  flex-wrap: wrap;
}

/* ── QuestionFlow modal ── */
.qfm-overlay {
  position: fixed; inset: 0;
  background: rgba(18,18,16,0.42);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
  padding: 24px;
}
.qfm-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.28);
  padding: 32px 30px;
  width: 100%;
  max-width: 520px;
}
.qfm-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}
.qfm-title {
  font-family: var(--font-serif);
  font-size: 24px;
  line-height: 1.25;
  color: var(--ink);
  margin-bottom: 8px;
}
.qfm-sub { font-size: 14px; color: var(--muted); line-height: 1.5; margin-bottom: 18px; }
.qfm-egs { line-height: 1.9; }
.qfm-eg {
  background: var(--chip);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 10px;
  font: inherit;
  font-size: 13px;
  color: var(--ink);
  cursor: pointer;
  transition: border-color .15s, color .15s;
}
.qfm-eg:hover { border-color: var(--accent); color: var(--accent); }
.qfm-actions { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 22px; }

/* ───────────────────────────────────────────────────────────────
   SUBJECTS → NOTEBOOKS ACCORDION  (lives in the home-left column)
   Three independent toggle levels: subject ▸ notebooks-section ▸ notebook.
   Chevron size/weight differentiates the levels (.acc-chev-lg/-md/-sm).
   ─────────────────────────────────────────────────────────────── */

/* "+ new subject" button (replaces the old mod-new card) */
.acc-new {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent); color: var(--on-accent); border: none; border-radius: 8px;
  padding: 10px 16px; font-family: var(--font-sans); font-size: 14px;
  font-weight: 600; cursor: pointer; transition: background .15s; margin-bottom: var(--density-gap, 14px);
}
.acc-new:hover { background: var(--accent2); }
.acc-new-plus { font-size: 17px; line-height: 1; }

/* a subject card */
.acc-subject {
  background: var(--paper); border: 1px solid var(--line); border-radius: 12px;
  margin-bottom: var(--density-gap, 14px);
  box-shadow: 0 8px 20px -14px rgba(27,27,25,.25);
}
.acc-subject-head {
  display: flex; align-items: center; gap: 14px; width: 100%;
  background: none; border: none; text-align: left; cursor: pointer;
  padding: 16px 18px; color: inherit;
}
.acc-subject-icon {
  width: 46px; height: 46px; border-radius: 10px; background: var(--chip);
  border: 1px solid var(--line); display: flex; align-items: center;
  justify-content: center; font-size: 23px; flex-shrink: 0;
}
.acc-subject-meta { flex: 1; min-width: 0; }
.acc-subject-name {
  font-family: var(--font-serif); font-size: 22px; color: var(--ink); line-height: 1.1;
}
.acc-subject-sub {
  font-family: var(--font-mono); font-size: 11px; color: var(--muted);
  text-transform: lowercase; letter-spacing: .04em; margin-top: 2px;
}
.acc-subject-body { padding: 2px 18px 18px; }

/* subject materials */
.acc-materials {
  background: var(--paperAlt); border: 1px solid var(--line); border-radius: 9px;
  padding: 13px 15px; margin-bottom: 16px;
}
.acc-materials-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 8px;
}
.acc-materials-toggle {
  display: flex; align-items: center; gap: 8px; flex: 1; min-width: 0;
  background: none; border: none; cursor: pointer; color: inherit; padding: 2px 0; text-align: left;
}
.acc-materials-toggle.collapsed .acc-chev { transform: rotate(-90deg); }
.acc-materials-title {
  font-family: var(--font-mono); font-size: 10.5px; color: var(--muted);
  text-transform: uppercase; letter-spacing: .08em;
}
.acc-materials-empty {
  display: flex; align-items: center; gap: 9px;
  font-size: 13px; color: var(--muted); padding: 4px 0; line-height: 1.4;
}

/* notebooks sub-section */
.acc-nb-head {
  display: flex; align-items: center; gap: 9px; width: 100%;
  background: none; border: none; text-align: left; cursor: pointer;
  padding: 7px 2px; color: inherit;
}
.acc-nb-title {
  font-family: var(--font-mono); font-size: 11px; color: var(--inkSoft);
  text-transform: uppercase; letter-spacing: .09em; font-weight: 500;
}
.acc-nb-count {
  font-family: var(--font-mono); font-size: 11px; color: var(--muted);
  background: var(--chip); border: 1px solid var(--line); border-radius: 999px;
  padding: 1px 9px; margin-left: 2px;
}

/* nested notebook list — vertical line + indent so notebooks read as INSIDE the subject */
.acc-nb-list {
  margin: 6px 0 0 16px; padding-left: 16px; border-left: 2px solid var(--line);
}
.acc-nb { margin-bottom: 2px; }
.acc-nb-row {
  display: flex; align-items: center; gap: 11px; width: 100%;
  background: none; border: none; text-align: left; cursor: pointer;
  padding: 9px 9px; border-radius: 8px; color: inherit; transition: background .15s;
}
.acc-nb-row:hover { background: var(--chip); }
.acc-nb-icon { font-size: 17px; flex-shrink: 0; }
.acc-nb-name { flex: 1; font-size: 15px; color: var(--ink); font-weight: 500; min-width: 0; }
.acc-nb-actions { display: flex; gap: 8px; padding: 4px 0 12px 40px; flex-wrap: wrap; }
.acc-action {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--paper); border: 1px solid var(--line); border-radius: 7px;
  padding: 7px 13px; font-family: var(--font-sans); font-size: 13px; font-weight: 500;
  color: var(--ink); cursor: pointer; transition: border-color .15s, color .15s;
}
.acc-action:hover { border-color: var(--accent2); color: var(--accent); }
.acc-action:disabled { opacity: .45; cursor: not-allowed; border-color: var(--line); color: var(--ink); }
.acc-nb-add {
  display: flex; align-items: center; gap: 8px; width: calc(100% - 4px); margin-top: 6px;
  background: none; border: 1px dashed var(--line); border-radius: 8px; padding: 9px 12px;
  font-family: var(--font-sans); font-size: 13.5px; color: var(--accent); cursor: pointer;
  transition: background .15s, border-color .15s;
}
.acc-nb-add:hover { background: var(--paperAlt); border-color: var(--accent2); }
.acc-nb-add:disabled { opacity: .5; cursor: not-allowed; color: var(--muted); }
.acc-nb-empty { font-size: 13px; color: var(--muted); padding: 6px 9px; }

/* chevrons — same glyph, three sizes/weights, rotate when collapsed */
.acc-chev { flex-shrink: 0; line-height: 1; transition: transform .15s ease, color .15s; }
.acc-chev svg { display: block; }
.acc-chev-lg { color: var(--ink); }
.acc-chev-md { color: var(--inkSoft); }
.acc-chev-sm { color: var(--muted); }
.acc-collapsed > .acc-subject-body,
.acc-collapsed > .acc-nb-list,
.acc-collapsed > .acc-nb-actions { display: none; }
.acc-collapsed > .acc-subject-head .acc-chev,
.acc-collapsed > .acc-nb-head .acc-chev,
.acc-collapsed > .acc-nb-row .acc-chev { transform: rotate(-90deg); }

/* read-only demo (shown only when the user has no real subjects yet) */
.acc-demo-hint {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 11px; color: var(--inkSoft);
  background: var(--chip); border: 1px solid var(--line); border-radius: 8px;
  padding: 9px 13px; margin-bottom: 14px; line-height: 1.4;
}
.acc-demo .acc-subject { opacity: .92; }

/* delete affordances (notebook Delete + subject delete), inline confirm */
.acc-action.danger { color: var(--danger); }
.acc-action.danger:hover { border-color: var(--danger); color: var(--danger); background: rgba(179,38,30,0.06); }
.acc-subject-foot { margin-top: 14px; padding-top: 12px; border-top: 1px dashed var(--line); }
.acc-del {
  background: none; border: none; cursor: pointer;
  font-family: var(--font-mono); font-size: 11.5px; color: var(--muted);
  padding: 4px 2px; transition: color .15s;
}
.acc-del:hover { color: var(--danger); }
.acc-del:disabled { opacity: .5; cursor: not-allowed; color: var(--muted); }
.acc-del-confirm {
  display: inline-flex; align-items: center; gap: 8px; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 11.5px; color: var(--inkSoft);
}
.acc-del-confirm button {
  background: none; border: 1px solid var(--line); border-radius: 6px;
  padding: 3px 10px; cursor: pointer; font-size: 11.5px; font-family: var(--font-mono);
  transition: background .15s, color .15s;
}
.acc-del-confirm button:disabled { opacity: .6; cursor: default; }
.acc-del-confirm button:first-of-type { color: var(--danger); border-color: var(--danger); }
.acc-del-confirm button:first-of-type:hover { background: var(--danger); color: var(--on-accent); }
.acc-del-confirm button:last-of-type:hover { background: var(--chip); }

/* ═══════════════════════════════════════════════════════════
   PHONE VIEW  (≤600px) — mobile polish for home + chat.
   Scoped to small screens only; the desktop layout is untouched.
   ═══════════════════════════════════════════════════════════ */
@media (max-width: 600px) {
  /* — Bottom nav-dots: smaller, lifted clear of the iOS home bar — */
  .nav-dots { bottom: calc(8px + env(safe-area-inset-bottom)); padding: 4px 7px; font-size: 10px; }
  .nav-dot { padding: 5px 9px; }

  /* ── HOMEPAGE ─────────────────────────────────────────────── */
  .home-top { padding: 12px 16px; }
  .home-top-right { gap: 10px; font-size: 10px; }
  .home-date { display: none; }              /* keep clock + sign-out + avatar */
  .home-main { padding: var(--density-pad) 16px 56px; gap: 22px; }
  .home-hero-title { font-size: 22px; }
  .home-hero-sub { max-width: 100%; font-size: 12.5px; }

  .pickup { padding: 20px 18px 18px; }
  .pickup-row { gap: 14px; }
  .pickup-emoji { font-size: 30px; width: 48px; height: 48px; }
  .pickup-topic { font-size: 20px; }
  .pickup-arrow { font-size: 26px; }

  /* subjects accordion — reclaim width lost to nested indents */
  .acc-subject-head { padding: 13px 14px; gap: 12px; }
  .acc-subject-icon { width: 40px; height: 40px; font-size: 20px; }
  .acc-subject-name { font-size: 19px; }
  .acc-subject-body { padding: 2px 14px 16px; }
  .acc-nb-list { margin: 6px 0 0 8px; padding-left: 10px; }
  .acc-nb-actions { padding: 4px 0 12px 12px; }
  .acc-nb-add { width: 100%; }

  /* ── CHAT ─────────────────────────────────────────────────── */
  /* On phone the chat fills the screen; study-profile is dropped and the
     previous-chats list becomes a slide-in drawer (opened by the ☰ header
     button). These override the broken earlier media-query rules at :1866-1867,
     which lose to the later base definitions — this block is last in source. */
  .module-body { grid-template-columns: 1fr; grid-template-rows: 1fr; min-height: 0; position: relative; }
  .module-profile { display: none; }
  .module-chats-toggle { display: inline-flex; align-items: center; }
  .module-margin {
    position: absolute; top: 0; left: 0; bottom: 0;
    width: min(82vw, 300px); z-index: 50;
    transform: translateX(-100%); transition: transform .25s ease;
    box-shadow: 0 12px 40px rgba(27,27,25,.35); overflow-y: auto;
  }
  .module-margin.open { transform: translateX(0); }
  .module-chats-backdrop { display: block; position: absolute; inset: 0; z-index: 40; background: rgba(27,27,25,.38); }

  .module-top { padding: 10px 14px; }
  .module-top-left { gap: 8px; }
  .module-back { white-space: nowrap; }
  .module-emoji { font-size: 18px; }
  .module-name { font-size: 18px; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
  .module-tag { display: none; }
  .module-streak { display: none; }          /* keep the avatar */

  .module-center { padding: 8px; }
  .module-paper { border-radius: 8px; }
  .paper-eyebrow { padding: 10px 14px; }
  .chat-scroll { padding: 14px 12px 18px; gap: 16px; }
  .msg { max-width: 92%; }
  .msg-bubble { padding: 12px 14px; }

  .module-compose { padding: 10px 12px calc(12px + env(safe-area-inset-bottom)); }
  .compose-grip { margin: -10px -12px 4px; }
  .compose-suggest { flex-wrap: nowrap; overflow-x: auto; margin-bottom: 8px; -webkit-overflow-scrolling: touch; }
  .compose-suggest > span { flex: none; }
  .compose-suggest button { white-space: nowrap; flex: none; }
  .compose-foot { display: none; }
  /* Reclaim input width — icon-only voice + send buttons, keep the mic glyph */
  .compose-row { gap: 6px; }
  .voice-toggle-label { display: none; }
  .compose-send-label { display: none; }
  .compose-send { padding: 9px 12px; }
  /* 16px input prevents iOS Safari from auto-zooming on focus; min-width:0 lets it shrink/grow */
  .compose-input { font-size: 16px; min-width: 0; }
  .compose-input::placeholder { font-size: 16px; }

  /* Diagram "save to notes" button: reveal by width (devtools doesn't emulate hover:none) */
  .msg-mermaid-save { opacity: 1; }

  /* ── CREATE ACCOUNT / AUTH ─────────────────────────────────── */
  /* Stack the two columns; the decorative poster collapses to a slim
     brand band above the form. */
  .auth { grid-template-columns: 1fr; grid-template-rows: auto 1fr; }
  .auth-poster {
    flex-direction: row; align-items: center;
    padding: 14px 18px;
    border-right: none; border-bottom: 1px solid var(--line);
  }
  .auth-poster::before, .auth-poster::after,
  .auth-poster-stamp, .auth-poster-art, .auth-poster-foot { display: none; }
  .auth-form { padding: 26px 20px; align-items: flex-start; }
  .auth-title { font-size: clamp(34px, 9vw, 44px); }
  .auth-blurb { max-width: 100%; }

  /* ── ONBOARDING ────────────────────────────────────────────── */
  /* Full-bleed card; the spine collapses to a compact horizontal step
     bar above the page content. */
  .onboard { padding: 0; align-items: stretch; }
  .onboard-card {
    grid-template-columns: 1fr; grid-template-rows: auto 1fr;
    max-width: none; min-height: 100%;
    border: none; border-radius: 0; box-shadow: none;
    overflow: visible;        /* let content grow past viewport & scroll, not clip the nav */
  }
  .onboard-card::before { display: none; }
  .onboard-spine {
    flex-direction: row; align-items: center; gap: 12px;
    padding: 12px 16px; border-bottom: 1px solid var(--line);
  }
  .onboard-spine::after { display: none; }
  .onboard-mark { margin-bottom: 0; white-space: nowrap; }
  .onboard-tabs { flex-direction: row; gap: 6px; overflow-x: auto; }
  .onboard-tab { white-space: nowrap; padding: 6px 10px; }
  .onboard-tab.current::before { display: none; }
  .onboard-spine-foot { display: none; }
  .onboard-page { padding: 24px 18px calc(28px + env(safe-area-inset-bottom)); }
  .onboard-page-top { margin-bottom: 20px; }
  .onboard-title { font-size: clamp(30px, 8vw, 40px); }
  .ob-picker { grid-template-columns: 1fr; }
  /* shrink the oversized serif input so the long placeholder fits better
     (stays ≥16px so iOS doesn't focus-zoom); ellipsis truncates the long
     placeholder cleanly instead of a hard mid-letter cut */
  .ob-textfield input { font-size: 20px; text-overflow: ellipsis; }
}

/* ═══════════════════════════════════════════════════════════════════
   HOME — "study-desk zine": riso-ink colour, wonky Fraunces display,
   handwritten Caveat margin-notes, chunky offset shadows, sticker tiles.
   All scoped under .home so the rest of the app is untouched.
   ═══════════════════════════════════════════════════════════════════ */
.home {
  /* pen colours that pair with the highlighters (subject wayfinding) */
  --j-terra:    var(--accent);
  --j-ink:      var(--ink);
  --j-marigold: #a67c12;
  --j-olive:    #2f7a43;
  --j-berry:    #b23a6e;
  --j-plum:     #6a4aa8;
  --j-cream:    var(--paper);
  --j-tint:     var(--paperAlt);
}

/* — atmosphere: ruled paper + soft colour washes behind the content — */
.home-main { position: relative; z-index: 0; }
.home-main::before {
  content: "";
  position: absolute;
  inset: -60px 0 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(58% 46% at 6% -4%, rgba(42,75,141,0.11), transparent 68%),
    radial-gradient(48% 42% at 104% 26%, rgba(42,75,141,0.09), transparent 70%),
    radial-gradient(40% 38% at 60% 108%, rgba(47,122,67,0.07), transparent 72%),
    repeating-linear-gradient(0deg, transparent 0 29px, rgba(27,27,25,0.035) 29px 30px);
}

/* — header — */
.home .home-top { border-bottom: 2px solid var(--j-terra); }
.home .mark-glyph { color: var(--j-terra); }
.home .home-avatar { background: var(--j-berry); font-family: var(--font-display); }

/* — hero: compact, wonky, highlighter-swiped — */
.home .home-hero { padding: 6px 0 2px; }
.home .home-hero-eyebrow {
  font-family: var(--font-hand);
  font-size: 21px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--j-terra);
  transform: rotate(-2.5deg);
  display: inline-block;
  margin-bottom: 4px;
}
.home .home-hero-title {
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-weight: 600;
  font-size: 31px;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.home .home-hero-title em { font-style: italic; font-weight: 400; color: var(--j-berry); }
.home .hero-underline::after {
  height: 58%;
  bottom: 3px; left: -5px; right: -5px;
  background: linear-gradient(102deg, var(--j-marigold) 0%, rgba(243,223,108,0.35) 100%);
  opacity: 0.55;
  border-radius: 4px 10px 5px 12px;
  transform: skew(-5deg) rotate(-1deg);
}
.home .hero-star {
  display: inline-block;
  margin-left: 8px;
  font-size: 0.62em;
  color: var(--j-marigold);
  animation: jazzSpin 14s linear infinite;
}
.home .home-hero-sub {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.02em;
}

/* — subject header: an index card with a coloured spine — */
.home .subject-switch {
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  background: var(--j-cream);
  border: 1px solid var(--line);
  border-left: 5px solid var(--j-ink);
  border-radius: 3px 16px 16px 3px;
  box-shadow: 5px 6px 0 rgba(42,75,141,0.13);
}
.home .subject-switch-emoji {
  font-size: 24px;
  width: 52px; height: 52px;
  display: grid; place-items: center;
  background: color-mix(in oklab, var(--j-ink) 12%, var(--j-cream));
  border: 1px solid color-mix(in oklab, var(--j-ink) 28%, transparent);
  border-radius: 13px;
  transform: rotate(-4deg);
}
.home .subject-switch-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 30px;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.home .subject-switch-sub {
  font-family: var(--font-hand);
  font-size: 16px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--j-ink);
  margin-top: 0;
}
.home .subject-switch-toggle {
  border-radius: 999px;
  border-color: var(--j-ink);
  color: var(--j-ink);
  background: var(--j-cream);
}
.home .subject-switch-toggle:hover { background: var(--j-ink); color: var(--on-accent); border-color: var(--j-ink); }
.home .subject-switch-new {
  background: var(--j-terra);
  color: var(--on-accent);
  border-radius: 999px;
  padding: 8px 16px;
  box-shadow: 3px 3px 0 rgba(42,75,141,0.30);
  transform: rotate(-1deg);
  transition: transform .15s, box-shadow .15s;
}
.home .subject-switch-new:hover {
  background: var(--j-terra);
  transform: rotate(0) translateY(-1px);
  box-shadow: 4px 5px 0 rgba(42,75,141,0.34);
}
.home .subject-switch-menu { border-radius: 4px 4px 14px 14px; border-top: 3px solid var(--j-ink); }
.home .subject-switch-item.on { background: color-mix(in oklab, var(--j-ink) 12%, transparent); }

/* — subject materials strip — */
.home .acc-materials {
  background: var(--j-cream);
  border: 1px solid var(--line);
  border-left: 4px solid var(--j-marigold);
  border-radius: 3px 12px 12px 3px;
}
.home .acc-materials-title {
  font-family: var(--font-hand);
  font-size: 17px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--j-olive);
}

/* — "notebooks in X" heading — */
.home .mods-head .section-title {
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 500;
  font-size: 25px;
  letter-spacing: -0.015em;
}
.home .mods-head .section-title::first-letter { color: var(--j-terra); }
.home .section-count {
  font-family: var(--font-hand);
  font-size: 16px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--muted);
}

/* — notebook cards: hue per index, chunky offset shadow, sticker emoji — */
.home .mod-card {
  background: var(--j-cream);
  border: 1px solid var(--line);
  border-top: 4px solid var(--hue, var(--j-terra));
  border-radius: 4px 4px 13px 13px;
  box-shadow: 4px 5px 0 var(--hue-sh, rgba(27,27,25,0.10));
  transition: transform .22s cubic-bezier(.34,1.4,.64,1), box-shadow .22s, border-color .22s;
}
.home .mod-card[data-hue="0"] { --hue: var(--j-terra);    --hue-sh: rgba(42,75,141,0.20); }
.home .mod-card[data-hue="1"] { --hue: var(--j-ink);      --hue-sh: rgba(42,75,141,0.20); }
.home .mod-card[data-hue="2"] { --hue: var(--j-olive);    --hue-sh: rgba(47,122,67,0.22); }
.home .mod-card[data-hue="3"] { --hue: var(--j-berry);    --hue-sh: rgba(178,58,110,0.20); }
.home .mod-card[data-hue="4"] { --hue: var(--j-plum);     --hue-sh: rgba(106,74,168,0.20); }
.home .mod-card:hover {
  transform: translateY(-4px) rotate(0);
  box-shadow: 6px 10px 0 var(--hue-sh);
  border-color: var(--hue);
}
.home .mod-emoji {
  background: color-mix(in oklab, var(--hue, var(--j-terra)) 16%, var(--j-cream));
  border: 1px solid color-mix(in oklab, var(--hue, var(--j-terra)) 34%, transparent);
  border-radius: 12px;
  transform: rotate(-5deg);
}
.home .mod-name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 23px;
  letter-spacing: -0.015em;
}
.home .mod-foot strong { color: var(--hue, var(--j-terra)); }

/* — + new notebook card — */
.home .mod-new {
  border: 2px dashed var(--j-terra);
  border-radius: 13px;
  background: color-mix(in oklab, var(--j-terra) 5%, transparent);
  color: var(--j-terra);
}
.home .mod-new:hover {
  border-color: var(--j-terra);
  background: color-mix(in oklab, var(--j-terra) 12%, transparent);
  color: var(--j-terra);
}
.home .mod-new-plus { font-family: var(--font-display); font-weight: 900; }
.home .mod-new-label { font-family: var(--font-display); font-style: italic; color: var(--j-terra); }
.home .mod-new:hover .mod-new-label { color: var(--j-terra); }

/* — pickup card: taped-in scrap — */
.home .pickup {
  background: var(--j-cream);
  border: 1px solid var(--line);
  border-radius: 3px;
  transform: rotate(-0.7deg);
  box-shadow: 6px 7px 0 rgba(27,27,25,0.11);
}
.home .pickup:hover {
  transform: rotate(0) translateY(-3px);
  box-shadow: 9px 13px 0 rgba(42,75,141,0.18);
}
.home .pickup-tape { background: rgba(243,223,108,0.5); border-color: rgba(42,75,141,0.35); }
.home .pickup-eyebrow {
  font-family: var(--font-hand);
  font-size: 18px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--j-terra);
}
.home .pickup-emoji {
  background: color-mix(in oklab, var(--j-ink) 12%, var(--j-cream));
  border: 1px solid color-mix(in oklab, var(--j-ink) 28%, transparent);
  border-radius: 12px;
  transform: rotate(-4deg);
}
.home .pickup-topic { font-family: var(--font-display); font-style: italic; color: var(--j-ink); }
.home .pickup-arrow { color: var(--j-terra); font-family: var(--font-display); }

/* — right rail: each card owns a hue — */
.home .rail-card {
  background: var(--j-cream);
  border: 1px solid var(--line);
  border-top: 4px solid var(--rc, var(--j-terra));
  border-radius: 4px 4px 15px 15px;
  box-shadow: 4px 5px 0 rgba(27,27,25,0.08);
}
.home .rail-quote  { --rc: var(--j-plum); }
.home .rail-streak { --rc: var(--j-marigold); }
.home .rail-teach  { --rc: var(--j-olive); }
.home .rail-stuck  { --rc: var(--j-ink); }
.home .rail-card-eyebrow {
  font-family: var(--font-hand);
  font-size: 16px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--rc, var(--j-terra));
}
.home .rail-quote-text { font-family: var(--font-display); font-style: italic; font-size: 19px; }
.home .rail-quote-mark { font-family: var(--font-display); font-size: 42px; color: var(--j-plum); opacity: 0.55; }
.home .rail-quote-attr {
  font-family: var(--font-hand);
  font-size: 15px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--j-plum);
}
.home .rail-streak-num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 66px;
  color: var(--j-marigold);
}
.home .rail-streak-label {
  font-family: var(--font-hand);
  font-size: 17px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--j-marigold);
}
.home .rail-week-bar { border-radius: 3px 3px 0 0; }
.home .rail-week-bar.lvl-0 { background: var(--j-tint); opacity: 1; }
.home .rail-week-bar.lvl-4 { background: linear-gradient(180deg, var(--j-marigold), var(--j-terra)); opacity: 1; }
.home .rail-week-label.today {
  color: var(--j-terra);
  font-family: var(--font-hand);
  font-size: 13px;
  font-weight: 700;
}
.home .rail-stuck-tag {
  background: color-mix(in oklab, var(--j-ink) 14%, transparent);
  color: var(--j-ink);
  border-radius: 999px;
  padding: 3px 9px;
}
.home .rail-stuck-foot em { font-family: var(--font-hand); font-size: 15px; color: var(--muted); }

/* — "how I'll teach this" answers — */
.home .subject-answer-q { color: var(--j-olive); }
.home .subject-answer-a { font-family: var(--font-display); }
.home .subject-rail-note { font-size: 12.5px; }
.home .onboard-next { background: var(--j-olive); color: var(--on-accent); border-radius: 999px; }
.home .onboard-back { border-radius: 999px; }

/* — footer & delete — */
.home .home-foot { font-family: var(--font-hand); font-size: 14px; }
.home .acc-subject-foot { border-top: 1px dashed var(--line); }

/* — one orchestrated page-load — */
@media (prefers-reduced-motion: no-preference) {
  .home .home-hero,
  .home .pickup,
  .home .subject-switch,
  .home .acc-materials,
  .home .mods-head,
  .home .mod-new,
  .home .home-rail .rail-card { animation: jazzRise .5s cubic-bezier(.2,.7,.2,1) backwards; }
  .home .mods-grid .mod-card { animation: jazzRiseCard .5s cubic-bezier(.2,.7,.2,1) backwards; }

  .home .pickup { animation-delay: .04s; }
  .home .subject-switch { animation-delay: .09s; }
  .home .acc-materials { animation-delay: .14s; }
  .home .mods-head { animation-delay: .18s; }
  .home .mods-grid > *:nth-child(1) { animation-delay: .22s; }
  .home .mods-grid > *:nth-child(2) { animation-delay: .28s; }
  .home .mods-grid > *:nth-child(3) { animation-delay: .34s; }
  .home .mods-grid > *:nth-child(4) { animation-delay: .40s; }
  .home .mods-grid > *:nth-child(n+5) { animation-delay: .44s; }
  .home .home-rail .rail-card:nth-child(1) { animation-delay: .10s; }
  .home .home-rail .rail-card:nth-child(2) { animation-delay: .18s; }
  .home .home-rail .rail-card:nth-child(3) { animation-delay: .26s; }
  .home .home-rail .rail-card:nth-child(4) { animation-delay: .34s; }
}
[data-motion="minimal"] .home *,
[data-motion="minimal"] .home *::before { animation: none !important; }

@keyframes jazzRise {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; }
}
@keyframes jazzRiseCard {
  from { opacity: 0; transform: translateY(16px) rotate(var(--rotate, 0deg)); }
  to   { opacity: 1; transform: translateY(0) rotate(var(--rotate, 0deg)); }
}
@keyframes jazzSpin { to { transform: rotate(360deg); } }

/* ═══════════════════════════════════════════════════════════════
   TEACH MODE — Ask/Teach switch, guided lessons, editable syllabus
   ═══════════════════════════════════════════════════════════════ */

.cp-modeswitch {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  margin-right: 8px;
  flex: 0 0 auto;
}
.cp-modebtn {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: 600 11px/1 var(--font-sans);
  letter-spacing: 0.02em;
  padding: 6px 12px;
  cursor: pointer;
}
.cp-modebtn.on { background: var(--accent); color: var(--on-accent); }
.cp-modebtn:not(.on):hover { color: var(--ink); background: var(--chip); }

/* lesson header + progress */
.lsn-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
}
.lsn-head-title {
  font: 600 13px/1.3 var(--font-serif, var(--font-sans));
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lsn-progress { padding: 10px 16px 4px; }
.lsn-progress-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  margin-bottom: 6px;
  padding: 0;
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
}
.lsn-progress-chev {
  color: var(--muted);
  font-size: 9px;
  line-height: 1;
  transition: transform 0.15s;
}
.lsn-progress-toggle.is-open .lsn-progress-chev { transform: rotate(90deg); }
.lsn-progress-toggle:hover .lsn-progress-label { color: var(--ink); }
.lsn-progress-label {
  font: 500 11px/1.4 var(--font-sans);
  color: var(--muted);
}
.lsn-progress-steps {
  list-style: none;
  margin: 8px 0 2px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 40vh;
  overflow-y: auto;
}
.lsn-progress-step {
  display: flex;
  align-items: center;
  gap: 8px;
  font: 400 12px/1.4 var(--font-sans);
  color: var(--muted);
}
.lsn-progress-step .lsn-dot { flex: none; }
.lsn-progress-step.is-current .lsn-progress-step-t {
  color: var(--ink);
  font-weight: 600;
}
.lsn-progress-step.is-done .lsn-progress-step-t {
  text-decoration: line-through;
  opacity: 0.7;
}
.lsn-progress-adjust {
  margin-top: 8px;
  padding: 0;
  background: none;
  border: 0;
  font: 500 11px/1.4 var(--font-sans);
  color: var(--accent);
  cursor: pointer;
}
.lsn-progress-adjust:hover { text-decoration: underline; }
.lsn-progress .lsn-outline-edit { margin-top: 10px; }
.lsn-progress-bar {
  height: 4px;
  border-radius: 999px;
  background: var(--chip);
  overflow: hidden;
}
.lsn-progress-bar > span {
  display: block;
  height: 100%;
  background: var(--accent);
  transition: width 0.4s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.lsn-scroll { padding-top: 16px; }

/* outline card (planning state) */
.lsn-outline-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
  background: var(--paper);
}
.lsn-outline-h { font: 500 13px/1.4 var(--font-sans); color: var(--ink); margin-bottom: 10px; }
.lsn-obj {
  margin: 0 0 12px 18px;
  padding: 0;
  color: var(--muted);
  font: 400 12px/1.6 var(--font-sans);
}
.lsn-steplist {
  margin: 0 0 14px 20px;
  padding: 0;
  color: var(--ink);
  font: 400 13px/1.7 var(--font-sans);
}
.lsn-steplist li { margin-bottom: 3px; }
.lsn-outline-actions { display: flex; gap: 8px; }
.lsn-outline-edit .lsn-outline-erow {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}
.lsn-outline-erow span { color: var(--muted); font-size: 12px; width: 18px; }
.lsn-outline-erow input {
  flex: 1;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 8px;
  font: 400 13px/1.3 var(--font-sans);
  background: var(--bg);
  color: var(--ink);
}
.lsn-outline-erow button {
  border: 0; background: transparent; color: var(--muted);
  cursor: pointer; font-size: 12px; padding: 4px;
}
.lsn-outline-add {
  border: 1px dashed var(--line);
  background: transparent;
  color: var(--muted);
  border-radius: 6px;
  padding: 6px 10px;
  font: 500 12px/1 var(--font-sans);
  cursor: pointer;
  margin: 2px 0 10px;
}

.lsn-btn {
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  border-radius: 8px;
  padding: 8px 14px;
  font: 600 12px/1 var(--font-sans);
  cursor: pointer;
}
.lsn-btn:hover:not(:disabled) { background: var(--chip); }
.lsn-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.lsn-btn-primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.lsn-btn-primary:hover:not(:disabled) { filter: brightness(1.05); background: var(--accent); }

.lsn-complete {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
  background: var(--paper);
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
  font: 500 13px/1.4 var(--font-sans);
  color: var(--ink);
}

/* teach-mode home */
.lsn-home { gap: 22px; }
.lsn-block { display: flex; flex-direction: column; gap: 8px; }
.lsn-block-h {
  font: 600 12px/1 var(--font-sans);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}
.lsn-block-sub { font: 400 12px/1.6 var(--font-sans); color: var(--muted); }
.lsn-topicrow { margin-top: 2px; }

.lsn-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  background: var(--paper);
  border-radius: 9px;
  padding: 10px 12px;
  cursor: pointer;
  font: inherit;
}
.lsn-row:hover { background: var(--chip); }
.lsn-row-title { font: 500 13px/1.3 var(--font-sans); color: var(--ink); }
.lsn-row-meta { font: 400 11px/1 var(--font-sans); color: var(--muted); white-space: nowrap; }
.lsn-row-done .lsn-row-title { color: var(--muted); }

/* syllabus checklist */
.lsn-syl { display: flex; flex-direction: column; gap: 8px; }
.lsn-syl-goal { font: 500 12px/1.4 var(--font-sans); color: var(--ink); }
.lsn-syl-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 2px; }
.lsn-syl-item { display: flex; align-items: center; gap: 8px; padding: 3px 0; }
.lsn-dot {
  width: 8px; height: 8px; border-radius: 999px;
  border: 1.5px solid var(--muted);
  flex: 0 0 auto;
}
.lsn-dot.half { background: linear-gradient(90deg, var(--accent) 50%, transparent 50%); border-color: var(--accent); }
.lsn-dot.on { background: var(--accent); border-color: var(--accent); }
.lsn-syl-title {
  flex: 1;
  text-align: left;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: 400 13px/1.4 var(--font-sans);
  cursor: pointer;
  padding: 2px 0;
}
.lsn-syl-title:hover { color: var(--accent); text-decoration: underline; }
.lsn-syl-edit {
  flex: 1;
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 4px 7px;
  font: 400 13px/1.3 var(--font-sans);
  background: var(--bg);
  color: var(--ink);
}
.lsn-syl-ic {
  border: 0; background: transparent; color: var(--muted);
  cursor: pointer; font-size: 11px; padding: 3px 4px; opacity: 0.5;
}
.lsn-syl-item:hover .lsn-syl-ic { opacity: 1; }
.lsn-syl-addrow, .lsn-syl-refine { display: flex; gap: 6px; margin-top: 4px; }
.lsn-syl-addrow input, .lsn-syl-refine input {
  flex: 1;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 9px;
  font: 400 12px/1.3 var(--font-sans);
  background: var(--bg);
  color: var(--ink);
}
.lsn-syl-addrow button, .lsn-syl-refine button {
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  border-radius: 6px;
  padding: 6px 12px;
  font: 600 12px/1 var(--font-sans);
  cursor: pointer;
}
.lsn-syl-addrow button:disabled, .lsn-syl-refine button:disabled { opacity: 0.4; cursor: not-allowed; }
.lsn-syl-refine { margin-top: 8px; }

/* Teach-mode: example-topic chips */
.lsn-examples {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
}
.lsn-examples-lbl {
  font: 500 11px/1 var(--font-sans);
  color: var(--muted);
  margin-right: 2px;
}
.lsn-ex-chip {
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  border-radius: 999px;
  padding: 5px 11px;
  font: 500 12px/1 var(--font-sans);
  cursor: pointer;
}
.lsn-ex-chip:hover:not(:disabled) { background: var(--chip); border-color: var(--accent); }
.lsn-ex-chip:disabled { opacity: 0.5; cursor: default; }
.lsn-ex-refresh {
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  padding: 4px 6px;
  border-radius: 6px;
}
.lsn-ex-refresh:hover:not(:disabled) { color: var(--ink); background: var(--chip); }
.lsn-ex-refresh:disabled { opacity: 0.4; cursor: default; }

/* ─────────────────────────────────────────────────────────────
   GUEST MODE — persistent "not saved" bar, one-time save card,
   and the progressive coach-mark tour. Kept visually quiet so it
   never competes with the tutor. (screens/guest.jsx)
   ───────────────────────────────────────────────────────────── */

/* Reserve room so the fixed bar never covers a screen's content
   (box-sizing:border-box is set globally in index.html). Normal-flow
   screens (.auth/.home/.onboard) shrink via the padding; the Notes
   shell is position:absolute inset:0 so it needs an explicit lift. */
html[data-guest="1"] .app-shell { padding-bottom: 40px; }
html[data-guest="1"] .notes-doc-root { bottom: 40px; }

/* Persistent guest bar — deliberately loud: full-width accent strip so a
   guest can't miss that their work isn't saved. Height stays 40px to match
   the html[data-guest="1"] layout reservation above. */
.guest-bar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  height: 40px;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 0 16px;
  background: var(--accent, var(--accent));
  background: linear-gradient(180deg,
    color-mix(in srgb, var(--accent, var(--accent)) 88%, var(--ink)),
    var(--accent, var(--accent)));
  border-top: 1px solid rgba(0, 0, 0, 0.25);
  box-shadow: 0 -8px 26px rgba(0, 0, 0, 0.22);
  font: 600 12.5px/1.2 var(--font-sans, 'Inter', sans-serif);
  color: var(--on-accent);
}
.guest-bar-dot {
  width: 7px; height: 7px;
  border-radius: 999px;
  background: var(--on-accent);
  box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7);
  animation: guest-bar-pulse 1.8s ease-out infinite;
  flex: none;
}
@keyframes guest-bar-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.6); }
  70%  { box-shadow: 0 0 0 7px rgba(255, 255, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 255, 255, 0); }
}
.guest-bar-text { opacity: 0.95; letter-spacing: 0.01em; }
.guest-bar-cta {
  border: 0;
  background: var(--on-accent);
  color: var(--accent, var(--accent));
  border-radius: 999px;
  padding: 6px 14px;
  font: 700 12px/1 var(--font-sans, 'Inter', sans-serif);
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18);
}
.guest-bar-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0, 0, 0, 0.24); }
@media (max-width: 560px) {
  .guest-bar-text { display: none; }
  .guest-bar-cta { font-size: 11.5px; padding: 6px 12px; }
}
@media (prefers-reduced-motion: reduce) {
  .guest-bar-dot { animation: none; }
}

/* "Save your progress" — centre-screen modal with a dimmed backdrop.
   Mirrors the .pw-overlay/.pw-card recipe used by the upgrade wall. */
.gsc-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(18,18,16,0.46);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  animation: gsc-fade 0.16s ease-out;
}
.gsc-card {
  width: min(400px, 100%);
  background: var(--card, var(--paper));
  color: var(--ink, var(--ink));
  border: 1px solid var(--rule, var(--line));
  border-radius: 18px;
  padding: 26px 24px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
  animation: gsc-pop 0.18s ease-out;
}
@keyframes gsc-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes gsc-pop {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to   { opacity: 1; transform: none; }
}
.gsc-eyebrow {
  font: 700 11px/1 var(--font-sans, 'Inter', sans-serif);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent, var(--accent));
}
.gsc-title {
  font: 600 20px/1.2 var(--font-serif, 'Newsreader', serif);
  color: var(--ink, var(--ink));
  margin: 8px 0 6px;
}
.gsc-body {
  font: 400 14px/1.5 var(--font-sans, 'Inter', sans-serif);
  color: var(--ink-2, var(--inkSoft));
  margin-bottom: 18px;
}
.gsc-actions { display: flex; gap: 10px; justify-content: flex-end; }
.gsc-btn {
  border: none;
  border-radius: 10px;
  padding: 10px 16px;
  font: 600 13px/1 var(--font-sans, 'Inter', sans-serif);
  cursor: pointer;
}
.gsc-btn-primary { background: var(--accent, var(--accent)); color: var(--on-accent); }
.gsc-btn-primary:hover { filter: brightness(1.06); }
.gsc-btn-ghost { background: transparent; color: var(--ink-3, var(--muted)); }
.gsc-btn-ghost:hover { background: var(--chip, var(--paperAlt)); }
@media (prefers-reduced-motion: reduce) {
  .gsc-overlay, .gsc-card { animation: none; }
}

.coachmark {
  background: var(--ink, var(--ink));
  color: var(--paper, var(--bg));
  border-radius: 12px;
  padding: 12px 14px 10px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
  animation: coachmark-in 0.18s ease-out;
}
@keyframes coachmark-in {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}
.coachmark-arrow {
  position: absolute;
  width: 12px; height: 12px;
  background: var(--ink, var(--ink));
  transform: rotate(45deg);
}
.coachmark[data-placement="bottom"] .coachmark-arrow { top: -6px; }
.coachmark[data-placement="top"] .coachmark-arrow { bottom: -6px; }
.coachmark-title {
  font: 600 13px/1.2 var(--font-sans, 'Inter', sans-serif);
  margin-bottom: 4px;
}
.coachmark-body {
  font: 400 12.5px/1.45 var(--font-sans, 'Inter', sans-serif);
  opacity: 0.9;
  margin-bottom: 8px;
}
.coachmark-body b { font-weight: 600; opacity: 1; }
.coachmark-x {
  border: 0;
  background: rgba(255, 255, 255, 0.14);
  color: var(--paper, var(--bg));
  border-radius: 999px;
  padding: 5px 12px;
  font: 600 11.5px/1 var(--font-sans, 'Inter', sans-serif);
  cursor: pointer;
}
.coachmark-x:hover { background: rgba(255, 255, 255, 0.24); }


/* ═══════════════════════════════════════════════════════════════════
   GIST LAYER — rules that finish the Gist look on top of the screen CSS
   above (wordmark, highlighter swipes, dot-grid paper, onboarding chips).
   ═══════════════════════════════════════════════════════════════════ */
/* swap the warm colour washes for a reMarkable-style dot grid */
.home-main::before {
  background: radial-gradient(circle, rgba(27, 27, 25, 0.08) 1px, transparent 1.3px) 0 0 / 22px 22px;
}

/* ── Café ornaments off ─────────────────────────────────────── */
.ambient,
.mark-glyph,
.auth-poster-stamp,
.poster-postmark,
.auth-poster-art .mug-svg { display: none !important; }

/* ── Wordmark: lowercase "gist" with the blue full stop ────── */
.mark-text,
.onboard-mark {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.35em;
  letter-spacing: -0.03em;
  text-transform: none;
  color: var(--ink);
}
.mark-text::after,
.onboard-mark::after { content: "."; color: var(--accent); }

/* Auth poster: the tagline becomes the Gist line (text swapped in auth.jsx) */
.poster-tagline strong {
  background: linear-gradient(176deg, transparent 18%, var(--g-marker) 20%, var(--g-marker) 86%, transparent 88%);
  padding: 0 6px;
  border-radius: 3px 8px 4px 9px;
}

/* ── Chat: the tutor's voice ────────────────────────────────── */
/* bold key terms in tutor answers get a highlighter swipe */
.msg-bubble-a strong {
  background: linear-gradient(176deg, transparent 18%, var(--g-marker) 20%, var(--g-marker) 86%, transparent 88%);
  padding: 0 3px;
  margin: 0 -1px;
  border-radius: 3px 8px 4px 9px;
  font-weight: 600;
  color: var(--ink);
}
/* tutor avatar: an italic "g" on ink instead of the café sparkle */
.msg-avatar-a {
  font-size: 0;
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.msg-avatar-a::after {
  content: "g";
  font: italic 500 17px/1 var(--font-serif);
}

/* ── Home hero + taped scraps: highlighter yellow and pink washi tape ── */
.home .hero-underline::after {
  background: var(--g-marker);
  opacity: 0.9;
}
.home .home-hero-title em { color: var(--accent); }
.home .hero-star { color: var(--accent); }
.home .pickup-tape,
.home-lib-card-tape {
  background: rgba(246, 193, 214, 0.78);
  border-color: transparent;
}

/* Auth: the café postscript ("brewing's allowed…") is off in Gist */
.auth-marginalia { display: none; }

/* ── Gist two-tap onboarding (screens/onboard.jsx → GistOnboard) ── */
.gob { display: grid; gap: 18px; }
.gob-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.gob-chip {
  font: 500 15px var(--font-sans); color: var(--ink);
  background: var(--paper); border: 1.5px solid var(--line); border-radius: 999px;
  padding: 8px 15px; min-height: 40px; cursor: pointer;
}
.gob-chip:hover { border-color: var(--muted); }
.gob-chip.on { border-color: var(--ink); background: var(--g-hl-green); }
.gob-label { font: 500 12px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-top: 4px; }
.gob-label span { text-transform: none; letter-spacing: 0; margin-left: 6px; }
.ob-pick.on { background: var(--g-hl-green); border-color: var(--ink); }
.gob-input {
  font: 400 16px var(--font-sans); color: var(--ink); background: var(--paper);
  border: 0; border-bottom: 1.5px solid var(--ink); padding: 8px 2px; max-width: 360px; outline-offset: 4px;
}

/* ── Icons ─────────────────────────────────────────────────── */
.g-icon { display: inline-block; vertical-align: -0.14em; flex: none; }

/* ── Buttons: solid ink for the one next step, quiet for the rest ── */
.btn-ink, .btn-quiet {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 600 15px var(--font-sans); border-radius: 3px; padding: 11px 18px; min-height: 44px;
  cursor: pointer; transition: background .15s ease, transform .1s ease;
}
.btn-ink { background: var(--ink); color: var(--on-accent); border: 1px solid var(--ink); }
.btn-ink:hover:not(:disabled) { background: var(--inkSoft); border-color: var(--inkSoft); }
.btn-ink:active:not(:disabled) { transform: scale(.98); }
.btn-ink:disabled { opacity: .4; cursor: default; }
.btn-quiet { background: transparent; color: var(--inkSoft); border: 1px solid transparent; }
.btn-quiet:hover { color: var(--ink); background: var(--paperAlt); }
.btn-sm { min-height: 34px; padding: 6px 12px; font-size: 13px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ── Home ──────────────────────────────────────────────────── */
.home .home-top { border-bottom: 1px solid var(--line); background: var(--bg); }
.home .home-avatar { background: var(--ink); color: var(--on-accent); font-family: var(--font-serif); font-style: italic; }
.home-signout { display: inline-flex; align-items: center; gap: 6px; }
.home .home-hero { padding: 8px 0 4px; }
.home .home-hero-title {
  font: 400 clamp(30px, 4vw, 42px)/1.12 var(--font-serif); letter-spacing: -0.02em; color: var(--ink);
}
.home .hero-underline::after {
  background: var(--marker); opacity: .9; height: 46%; bottom: 4px; left: -4px; right: -4px;
  border-radius: 3px 8px 4px 9px; transform: rotate(-1deg);
}
.home .home-hero-sub { font: 400 13px var(--font-mono); color: var(--muted); margin-top: 6px; }
.home-hero-plan { opacity: .8; }

/* subject tabs: one tap to switch, each with its own highlighter */
.subject-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 22px; }
.subject-tab {
  --h: var(--marker);
  font: 600 15px var(--font-sans); color: var(--ink); background: var(--paper);
  border: 1.5px solid var(--line); border-radius: 999px; padding: 8px 16px; min-height: 42px; cursor: pointer;
}
.subject-tab:hover { border-color: var(--muted); }
.subject-tab.on { background: var(--h); border-color: var(--ink); }
.subject-tab-add { display: inline-flex; align-items: center; gap: 6px; color: var(--accent); border-style: dashed; background: transparent; }
.hl-green  { --h: var(--hl-green); }
.hl-blue   { --h: var(--hl-blue); }
.hl-pink   { --h: var(--hl-pink); }
.hl-orange { --h: var(--hl-orange); }
.hl-purple { --h: var(--hl-purple); }

/* pick up where you left off */
.home .pickup {
  display: block; width: 100%; text-align: left; cursor: pointer;
  background: var(--paper); border: 1px solid var(--ink); border-radius: 6px; padding: 18px 20px;
  transform: none; box-shadow: 4px 4px 0 var(--marker); margin-bottom: 26px;
  transition: transform .15s ease, box-shadow .15s ease;
}
.home .pickup:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--marker); }
.home .pickup-eyebrow { font: 500 12px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.home .pickup-row { display: flex; align-items: center; gap: 16px; margin-top: 6px; }
.home .pickup-body { flex: 1; min-width: 0; }
.home .pickup-mod { font: 400 24px/1.2 var(--font-serif); color: var(--ink); }
.home .pickup-meta { display: flex; flex-wrap: wrap; gap: 6px; font: 400 13px var(--font-sans); color: var(--muted); margin-top: 4px; }
.pickup-go { display: inline-flex; align-items: center; gap: 6px; font: 600 14px var(--font-sans); color: var(--on-accent); background: var(--ink); border-radius: 3px; padding: 9px 14px; white-space: nowrap; }

.home .mods-head .section-title { font: 400 24px var(--font-serif); }
.home .mods-head .section-title::first-letter { color: inherit; }
.home .section-count { font: 400 12px var(--font-mono); color: var(--muted); }
.section-count-plan { margin-left: auto; }

/* notebook cards: flat sheets with the subject's highlighter on top */
.home .mod-card {
  background: var(--paper); border: 1px solid var(--line); border-top: 5px solid var(--h, var(--marker));
  border-radius: 4px; box-shadow: none; transform: none !important;
}
.home .mod-card:hover { border-color: var(--ink); border-top-color: var(--h, var(--marker)); box-shadow: var(--shadow-soft); transform: none; }
.home .mod-name { font: 400 21px/1.25 var(--font-serif); letter-spacing: -0.01em; }
.home .mod-sub { font: 400 13px var(--font-sans); color: var(--muted); }
.home .mod-foot { font: 400 12px var(--font-mono); color: var(--muted); }
.home .mod-foot strong { color: var(--ink); }
.home .mod-new { border: 1.5px dashed var(--muted); border-radius: 4px; background: transparent; color: var(--accent); }
.home .mod-new:hover { border-color: var(--accent); background: var(--accent-soft); }
.home .mod-new-plus { font-size: 22px; }
.home .mod-new-label { font: 600 16px var(--font-sans); font-style: normal; color: var(--accent); }
.home .mod-new-sub { font: 400 13px var(--font-sans); color: var(--muted); }
.mod-card-del { display: inline-flex; align-items: center; justify-content: center; }

.home .acc-materials { margin-top: 28px; }
.acc-materials-title { font: 600 15px var(--font-sans); text-transform: none; letter-spacing: 0; }
.lib-btn { display: inline-flex; align-items: center; gap: 6px; }
.acc-del { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); }
.acc-del:hover { color: var(--danger); }

.home-empty { border: 1px solid var(--ink); border-radius: 6px; background: var(--paper); padding: 32px; display: grid; gap: 12px; justify-items: start; }
.home-empty-title { font: 400 30px/1.15 var(--font-serif); }
.home-empty-sub { color: var(--inkSoft); max-width: 34em; }

/* right rail */
.home .rail-card {
  background: var(--paper); border: 1px solid var(--line); border-top: 1px solid var(--line);
  border-radius: 6px; box-shadow: none; transform: none;
}
.home .rail-card-eyebrow { font: 500 12px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.rail-week { display: flex; justify-content: space-between; gap: 6px; margin: 14px 0 10px; align-items: flex-end; }
.rail-week-day { display: grid; justify-items: center; gap: 6px; }
.rail-tick {
  width: 26px; height: 26px; border-radius: 50%; border: 1.5px solid var(--line);
  display: grid; place-items: center; color: var(--accent3); font-size: 15px;
}
.rail-tick.on { border-color: var(--accent3); background: color-mix(in oklab, var(--hl-green) 55%, transparent); }
.home .rail-week-label { font: 500 11px var(--font-mono); color: var(--muted); }
.home .rail-week-label.today { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }
.home .rail-streak-label { font: 400 14px var(--font-sans); color: var(--inkSoft); font-style: normal; }
.subject-rail-note { font-size: 13px; color: var(--muted); }
.rail-link {
  display: flex; align-items: center; gap: 8px; width: 100%; cursor: pointer;
  font: 600 14px var(--font-sans); color: var(--accent); background: transparent;
  border: 1px solid var(--line); border-radius: 6px; padding: 12px 14px;
}
.rail-link .g-icon:last-child { margin-left: auto; }
.rail-link:hover { border-color: var(--accent); background: var(--accent-soft); }

/* ── Sheets (Add subject / New notebook) ───────────────────── */
.sheet-scrim {
  position: fixed; inset: 0; z-index: 900; background: rgba(18, 18, 16, .42);
  display: flex; align-items: center; justify-content: center; padding: 20px;
}
.sheet {
  width: min(620px, 100%); max-height: calc(100% - 40px); display: flex; flex-direction: column;
  background: var(--paper); border: 1px solid var(--ink); border-radius: 6px; box-shadow: var(--shadow-soft);
}
.sheet-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 20px 22px 0; }
.sheet-title { font: 400 26px/1.15 var(--font-serif); letter-spacing: -0.01em; }
.sheet-x { background: none; border: 0; color: var(--muted); font-size: 20px; cursor: pointer; padding: 6px; border-radius: 3px; }
.sheet-x:hover { color: var(--ink); background: var(--paperAlt); }
.sheet-body { padding: 16px 22px; overflow: auto; display: grid; gap: 16px; }
.sheet-foot { display: flex; justify-content: flex-end; gap: 10px; padding: 14px 22px 20px; border-top: 1px solid var(--line); }
.sheet-hint { color: var(--inkSoft); font-size: 15px; }
.sheet-levels { padding-bottom: 14px; border-bottom: 1px dashed var(--line); }
.sheet .ob-textfield input { font-size: 22px; }

/* ── Onboarding + auth finishing ───────────────────────────── */
.onboard-back, .onboard-next { display: inline-flex; align-items: center; gap: 8px; }
.onboard-next { background: var(--ink); color: var(--on-accent); }
.ob-pick-check { display: inline-flex; }
.poster-note { margin-top: 18px; font: 500 12px var(--font-mono); letter-spacing: .1em; color: var(--muted); }
.auth-submit-arrow { display: inline-flex; }

/* ── Chat: "Did that land?" + the stamp ────────────────────── */
.land-check { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 2px 0 6px 44px; font-size: 14px; color: var(--ink-3); }
.land-q { margin-right: 2px; }
.land-btn {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  font: 500 13px var(--font-sans); color: var(--ink); background: var(--card);
  border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; min-height: 34px;
}
.land-btn:hover { border-color: var(--ink); }
.land-stamp, .lsn-done-stamp {
  display: inline-block; margin: 4px 0 8px 44px; transform: rotate(-6deg);
  font: 600 13px var(--font-mono); letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent3); border: 2px solid var(--accent3); outline: 1px solid var(--accent3); outline-offset: 2px;
  border-radius: 4px; padding: 6px 10px; animation: gStamp .35s cubic-bezier(.2, 1.6, .4, 1) both;
}
.lsn-done-stamp { margin-left: 0; }
@keyframes gStamp { from { opacity: 0; transform: rotate(-6deg) scale(1.7); } to { opacity: 1; transform: rotate(-6deg) scale(1); } }
.compose-send { display: inline-flex; align-items: center; gap: 6px; }
.voice-toggle, .compose-mic, .msg-speak, .msg-add-note, .cp-head-btn { display: inline-flex; align-items: center; gap: 6px; }
.msg-avatar-u { background: var(--paperAlt); color: var(--ink); }

/* ── Notes top bar ─────────────────────────────────────────── */
.nd-pill { display: inline-flex; align-items: center; gap: 6px; }
.nd-seg button { display: inline-flex; align-items: center; gap: 6px; }
.notes-doc-root .side .logo { background: var(--ink); color: var(--on-accent); font: italic 500 18px var(--nd-serif); }
.notes-doc-root .side .brand { font: 500 18px var(--nd-serif); letter-spacing: -0.02em; }
.src-mini { display: inline-flex; align-items: center; gap: 5px; }
.library-back, .lib-doc-delete, .lib-doc-icon, .lib-group-toggle { display: inline-flex; align-items: center; gap: 6px; }

/* ── Guest chrome ─────────────────────────────────────────── */
.guest-bar { background: var(--ink); color: var(--on-accent); }
.guest-bar-cta { background: var(--marker); color: var(--ink); border-radius: 3px; font-weight: 600; }
.gsc-card { background: var(--paper); border: 1px solid var(--ink); border-radius: 6px; }
.gsc-title { font: 400 28px/1.15 var(--font-serif); }
.gsc-btn-primary { background: var(--ink); color: var(--on-accent); border-radius: 3px; }
.coachmark { background: var(--ink); color: var(--on-accent); border-radius: 6px; }
.coachmark-x { background: var(--marker); color: var(--ink); border-radius: 3px; }

@media (max-width: 640px) {
  .subject-tabs { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; }
  .subject-tab { flex: none; }
  .home .pickup-row { flex-wrap: wrap; }
  .sheet-scrim { align-items: flex-end; padding: 0; }
  .sheet { width: 100%; max-height: 92%; border-radius: 10px 10px 0 0; }
  .land-check, .land-stamp { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .land-stamp, .lsn-done-stamp { animation: none; }
  .home .pickup, .btn-ink { transition: none; }
}

/* One thing at a time: plain dimming (no blur) for dialogs, and the coach-mark
   steps aside while any dialog is open. */
.gsc-overlay { backdrop-filter: none !important; -webkit-backdrop-filter: none !important; background: rgba(18, 18, 16, .42); }
body:has(.gsc-overlay) .coachmark,
body:has(.sheet-scrim) .coachmark,
body:has(.pw-overlay) .coachmark { display: none; }

/* ── Home finishing (overrides the old zine rules above) ───── */
.home .acc-materials { background: var(--paper); border: 1px solid var(--line); border-left: 1px solid var(--line); border-radius: 6px; }
.home .acc-materials-title { font: 600 15px var(--font-sans); color: var(--ink); }
.home .mods-head { gap: 10px; align-items: baseline; }
.home .mod-new { min-height: 150px; }
.home .rail-card { --rc: var(--line); border-top-color: var(--line); }
.home .subject-answer-q { font: 500 12px var(--font-mono); color: var(--muted); }
.home .subject-answer-a { font: 400 17px var(--font-serif); }
.home .home-avatar:empty { display: none; }

/* Chat finishing: chips keep their outline inside the notes screen, the guest
   avatar hides when there's no name, and only key terms inside a sentence get
   the highlighter (a bold label on its own line stays plain bold). */
.notes-doc-root .land-btn { border: 1px solid var(--line); background: var(--card); border-radius: 999px; padding: 6px 12px; color: var(--ink); }
.notes-doc-root .land-btn:hover { border-color: var(--ink); }
.msg-avatar-u:empty { visibility: hidden; }
.msg-bubble-a p > strong:only-child,
.msg-bubble-a li > strong:only-child,
.msg-bubble-a h1 strong, .msg-bubble-a h2 strong, .msg-bubble-a h3 strong, .msg-bubble-a h4 strong { background: none; padding: 0; margin: 0; }
.library-title { font: 400 28px/1.1 var(--font-serif); font-style: normal; letter-spacing: -0.01em; }

.land-stamp { align-self: flex-start; width: auto; max-width: max-content; }
.home .pickup-mod, .home .pickup-meta, .home .mod-name, .home .mod-sub, .home .mod-new-sub,
.home .subject-tab, .home .home-date { text-transform: none; }

/* Gist writes labels in sentence case (the old look lower-cased everything).
   Buttons and content keep their own capitals; small eyebrows are mono caps. */
.auth-tab, .auth-submit, .onboard-back, .onboard-next, .home-signout,
.pickup-mod, .pickup-meta, .mod-sub, .mod-foot, .mod-new-sub, .section-count,
.msg-speak, .msg-add-note, .msg-note-suggest-add, .msg-note-saved, .msg-confusion,
.compose-send, .compose-suggest button, .acc-subject-sub, .rail-streak-label { text-transform: none; }
.auth-eyebrow, .onboard-eyebrow, .auth-label, .msg-sources-label {
  text-transform: uppercase; letter-spacing: .08em; font-family: var(--font-mono); font-size: 12px;
}
.auth-submit, .onboard-next, .onboard-back, .compose-send, .auth-tab { font-family: var(--font-sans); letter-spacing: 0; }