/* uncoiled — sensory-friendly visual system
   - Low-glare warm base, never pure white. Soft dark mode with a sage tint.
   - ONE bold accent (coral), used only for the primary action on a screen.
   - Status is always icon + words, never colour alone.
   - Motion: opacity/transform only, short, and off for prefers-reduced-motion. */

:root {
  /* Each colour is declared once: light-dark(light value, dark value).
     The browser picks based on color-scheme, which follows the device unless the theme switch sets data-theme. */
  color-scheme: light dark;
  --bg: light-dark(#eee8dc, #1b1d1a);       /* warm oatmeal / soft sage-dark */
  --bg-2: light-dark(#e4ddcf, #232621);     /* tonal grouping, not a "card" */
  --bg-3: light-dark(#d9d1c0, #2d312a);
  --ink: light-dark(#23221f, #ece7dc);
  --ink-2: light-dark(#4f4b44, #b4afa3);    /* secondary text: 7:1+ on --bg in both themes */
  --line: light-dark(#cfc6b4, #3a3e35);
  --accent: light-dark(#ff5a3c, #ff6b4d);   /* coral: primary actions only */
  --on-accent: light-dark(#1d0f0b, #1b1d1a); /* 6:1 on coral */
  --warn-bg: light-dark(#ead9ae, #3d3520);  /* "won't fit" notes: always paired with an icon + words */
  --sage: light-dark(#5f7a62, #9db79f);
  --ring: var(--ink);
  --scrim: light-dark(rgba(35, 34, 31, 0.38), rgba(0, 0, 0, 0.55));

  --m0: light-dark(#4c78c9, #8fb0ef); --m1: light-dark(#2b8577, #6fc4b4);
  --m2: light-dark(#9a5bbd, #c99ae3); --m3: light-dark(#b8691f, #e8a565);
  --m4: light-dark(#3a8bae, #7cc0de); --m5: light-dark(#6f7f2c, #b4c46f);
  --m6: light-dark(#b0567f, #e595b9); --m7: light-dark(#6267bd, #a6a9ee);

  --r-s: 12px; --r-m: 20px; --r-l: 32px;
  --fs-body: 1.125rem;
  --fs-display: clamp(2.2rem, 5.4vw, 3.75rem);
  --fs-hero: clamp(2.5rem, 7.2vw, 5.25rem);
  --gap: clamp(20px, 3vw, 32px);
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}
:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"] { color-scheme: dark; }

/* Base */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font: 400 var(--fs-body) / 1.6 "Atkinson Hyperlegible", system-ui, -apple-system, "Segoe UI", sans-serif;
  letter-spacing: 0.012em;
  min-height: 100vh;
  min-height: 100dvh;
}
h1, h2, h3, p { margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; }
a, button, summary, label { touch-action: manipulation; -webkit-tap-highlight-color: transparent; }
h1, h2, h3 { text-wrap: balance; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--ring); outline-offset: 3px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; background: var(--ink); color: var(--bg); padding: 10px 14px; border-radius: 10px; z-index: 100; }
.skip:focus { top: 12px; }
.muted { color: var(--ink-2); }

svg.i { width: 1.15em; height: 1.15em; flex: none; stroke: currentColor; fill: none; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; vertical-align: -0.2em; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}

/* Top bar */
.bar {
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 16px;
  padding: 18px clamp(16px, 4vw, 40px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; text-decoration: none; justify-self: start; }
.mark { display: block; width: 44px; height: 33px; flex: none; color: var(--sage); }

/* Preview notice: static, never covers content */
.preview-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 6px 16px;
  padding: 10px clamp(16px, 4vw, 40px); background: var(--bg-2); color: var(--ink-2); font-size: 0.95rem; text-align: center; }
.preview-bar strong { color: var(--ink); }
.preview-bar a { color: var(--ink); font-weight: 700; }
.menu-link { text-decoration: none; }
.preview-links { display: inline-flex; flex-wrap: wrap; gap: 4px 16px; justify-content: center; }
.preview-bar .link { border: 0; background: none; padding: 0; font-weight: 700; text-decoration: underline; color: var(--ink); min-height: 0; }

/* Feedback sheet */
.fb-fields, .fb-thanks { display: grid; gap: 18px; }
.fb-thanks { justify-items: start; }
.fb-thanks .title:focus { outline: none; }
.feel { border: 0; padding: 0; margin: 0; display: grid; gap: 10px; min-width: 0; }
.feel legend { font-weight: 700; font-size: 0.95rem; color: var(--ink-2); padding: 0; margin-bottom: 10px; }
.feel-row { display: flex; flex-wrap: wrap; gap: 10px; }
.feel label { position: relative; }
.feel input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.feel label > span { display: inline-flex; align-items: center; gap: 8px; min-height: 48px; padding: 10px 16px; border-radius: 999px;
  background: var(--bg-2); font-weight: 700; transition: background-color 0.2s var(--ease); }
.feel label:hover > span { background: var(--bg-3); }
.feel input:checked + span { background: var(--bg-3); box-shadow: inset 0 0 0 3px var(--ink); }
.feel input:focus-visible + span { outline: 3px solid var(--ring); outline-offset: 3px; }
.small { font-size: 0.95rem; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.sample-btn { justify-self: start; }
.nav { display: flex; gap: 6px; }
.nav a {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; text-decoration: none;
  color: var(--ink-2); font-weight: 700; border-radius: 999px; position: relative;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}
.nav a:hover { color: var(--ink); background: var(--bg-2); }
.nav a[aria-current="page"] { color: var(--ink); background: var(--bg-3); }
.more { justify-self: end; position: relative; }
.menu {
  position: absolute; right: 0; top: calc(100% + 8px); z-index: 30; min-width: 250px;
  background: var(--bg-2); border-radius: var(--r-m); padding: 8px; box-shadow: 0 18px 50px rgba(0, 0, 0, 0.18);
  display: grid;
}
.menu button, .menu a {
  display: flex; align-items: center; gap: 12px; text-align: left; padding: 12px 14px; border: 0; background: none; border-radius: var(--r-s); font-weight: 700;
}
.menu button:hover, .menu a:hover { background: var(--bg-3); }

@media (max-width: 720px) {
  .bar { grid-template-columns: 1fr auto; padding: 14px 16px; }
  .nav {
    position: fixed; z-index: 40; left: 0; right: 0; bottom: 0; justify-content: space-around; gap: 0;
    background: var(--bg-2); padding: 6px 6px calc(6px + env(safe-area-inset-bottom));
  }
  .nav a { flex-direction: column; gap: 2px; padding: 8px 4px; font-size: 0.8rem; flex: 1; border-radius: 16px; }
  .nav a svg.i { width: 26px; height: 26px; }
  main { padding-bottom: 110px; }
}

/* Screens + layout */
main { outline: none; }
.screen { padding: clamp(16px, 4vw, 40px); padding-top: clamp(24px, 7vh, 72px); animation: enter 0.24s var(--ease); }
@keyframes enter { from { opacity: 0; } to { opacity: 1; } }
.stack { display: grid; gap: var(--gap); max-width: 960px; margin: 0 auto; }
.stack.narrow { max-width: 760px; }
.row { display: flex; align-items: center; gap: 10px; }
.row.gap { gap: 14px; align-items: flex-end; }
.row.wrap { flex-wrap: wrap; }
.gap-l { gap: 24px; align-items: flex-start; }
.headrow { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; }
.spacer { flex: 1; }

.kicker { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; color: var(--ink-2); font-size: 1rem; letter-spacing: 0.04em; }
.display { font-size: var(--fs-display); line-height: 1.08; letter-spacing: -0.015em; font-weight: 700; }
.title { font-size: clamp(1.6rem, 3.4vw, 2.2rem); line-height: 1.15; font-weight: 700; }
.lede { font-size: 1.2rem; color: var(--ink-2); max-width: 46ch; }
.status { color: var(--ink-2); min-height: 1.6em; }

/* Buttons */
.primary, .secondary, .text-btn, .icon-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px; border: 0; font-weight: 700;
  transition: transform 0.15s var(--ease), background-color 0.2s var(--ease), color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.primary {
  min-height: 64px; padding: 14px 30px; border-radius: 999px; font-size: 1.25rem;
  background: #fff; color: #1b1d1a; box-shadow: inset 0 0 0 1px var(--line);
}
.primary:hover { box-shadow: inset 0 0 0 1px var(--line), 0 0 0 6px color-mix(in srgb, #fff 22%, transparent); }
.primary:active { transform: scale(0.98); }
.primary:disabled { background: var(--bg-3); color: var(--ink-2); box-shadow: none; cursor: not-allowed; }
.secondary {
  min-height: 56px; padding: 12px 24px; border-radius: 999px; font-size: 1.1rem;
  background: transparent; color: var(--ink); box-shadow: inset 0 0 0 2px var(--ink);
  justify-self: start;
}
.secondary:hover { background: var(--bg-2); }
.text-btn { background: none; padding: 10px 6px; color: var(--ink-2); min-height: 48px; }
.text-btn:hover { color: var(--ink); }
.icon-btn { width: 52px; height: 52px; border-radius: 50%; background: transparent; color: var(--ink); }
.icon-btn:hover { background: var(--bg-2); }
.icon-btn svg.i { width: 26px; height: 26px; }

/* Disclosure */
.disclose summary {
  list-style: none; display: inline-flex; align-items: center; gap: 10px; cursor: pointer;
  font-weight: 700; color: var(--ink-2); padding: 10px 0; min-height: 48px;
}
.disclose summary::-webkit-details-marker { display: none; }
.disclose summary svg.i { transition: transform 0.2s var(--ease); }
.disclose[open] > summary svg.i { transform: rotate(180deg); }
.disclose[open] > summary { color: var(--ink); }
.disclose > :not(summary) { margin-top: 12px; }

/* Fields */
.field { display: grid; gap: 6px; flex: 1; min-width: 0; }
.field > span { font-weight: 700; font-size: 0.95rem; color: var(--ink-2); }
input, select, textarea {
  width: 100%; min-height: 52px; padding: 12px 16px; border-radius: var(--r-s);
  border: 0; background: var(--bg-2); box-shadow: inset 0 0 0 2px transparent;
  transition: box-shadow 0.15s var(--ease), background-color 0.15s var(--ease);
}
input:hover, select:hover, textarea:hover { background: var(--bg-3); }
input:focus, select:focus, textarea:focus { outline: none; box-shadow: inset 0 0 0 2px var(--ink); }
textarea { resize: vertical; min-height: 140px; line-height: 1.6; font-size: 1.15rem; }
.form-error { color: var(--ink); font-weight: 700; min-height: 1.4em; }

/* NOW */
.now { max-width: 980px; margin: 0 auto; min-height: 62vh; display: grid; align-content: center; gap: clamp(24px, 4vh, 40px); }
.now-when { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.2rem; color: var(--ink-2); }
.now-when .live { display: inline-flex; align-items: center; gap: 8px; color: var(--ink); background: var(--bg-2); padding: 4px 14px 4px 10px; border-radius: 999px; }
.now-title {
  font-size: var(--fs-hero); line-height: 1.02; letter-spacing: -0.025em; font-weight: 700; max-width: 18ch; overflow-wrap: anywhere;
  position: relative; transition: opacity 0.35s var(--ease), transform 0.35s var(--ease);
}
.now-facts { display: flex; flex-wrap: wrap; gap: 12px 28px; font-size: 1.15rem; color: var(--ink-2); }
.fact { display: inline-flex; align-items: center; gap: 8px; }
.tag { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; color: var(--ink); }
.tag::before { content: ""; width: 12px; height: 12px; border-radius: 4px; background: var(--mc, var(--sage)); }
.now-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 18px; }
.now-actions .primary { min-height: 76px; padding: 16px 40px; font-size: 1.4rem; }
.now-actions .primary svg.i { width: 30px; height: 30px; }
.now-after { border-top: 2px solid var(--line); padding-top: 18px; }
.now-after ol { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 14px; }
.now-after li { display: flex; gap: 14px; align-items: baseline; font-size: 1.1rem; }
.now-after time { font-weight: 700; min-width: 7.5em; font-variant-numeric: tabular-nums; }

/* Completion: the button becomes a check, the title strikes through and fades, then the next task fades in. */
.now.completing .now-title { opacity: 0.35; transform: translateY(-4px); }
.now-title { text-decoration: line-through; text-decoration-thickness: 0.07em; text-decoration-color: transparent; transition: opacity 0.35s var(--ease), transform 0.35s var(--ease), text-decoration-color 0.35s var(--ease); }
.now.completing .now-title { text-decoration-color: currentColor; }
.now.completing .primary { background: var(--ink); color: var(--bg); }
.now.completing .primary .done-check { animation: pop 0.4s var(--ease); }
@keyframes pop { 0% { transform: scale(0.4); } 70% { transform: scale(1.25); } 100% { transform: scale(1); } }

.empty-now { display: grid; gap: 20px; justify-items: start; }
.big-icon { display: grid; place-items: center; width: 88px; height: 88px; border-radius: 50%; background: var(--bg-2); }
.big-icon svg.i { width: 42px; height: 42px; }

/* Stepping stones */
.stones { display: flex; align-items: center; flex-wrap: wrap; gap: 0; list-style: none; padding: 0; margin: 0; }
.stone {
  width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center;
  box-shadow: inset 0 0 0 2.5px var(--ink-2); color: var(--ink-2); position: relative;
  transition: background-color 0.3s var(--ease), box-shadow 0.3s var(--ease), color 0.3s var(--ease);
}
.stone svg.i { width: 18px; height: 18px; }
.stone + .stone { margin-left: 14px; }
.stone + .stone::before { content: ""; position: absolute; right: 100%; width: 14px; height: 2.5px; background: var(--line); }
.stone.done { background: var(--ink); color: var(--bg); box-shadow: none; }
.stone.next { box-shadow: inset 0 0 0 3.5px var(--ink); color: var(--ink); background: var(--bg-2); }
.stone.later { box-shadow: inset 0 0 0 2.5px var(--line); }
.stones-label { margin-left: 16px; color: var(--ink-2); font-size: 1rem; }
.stones-wrap { display: flex; align-items: center; flex-wrap: wrap; row-gap: 10px; }

/* ADD */
.choices { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.choice {
  display: grid; justify-items: start; gap: 6px; text-align: left; padding: 22px 20px; min-height: 150px;
  border: 0; border-radius: var(--r-l); background: var(--bg-2); color: var(--ink);
  transition: background-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.choice:hover { background: var(--bg-3); }
.choice[aria-selected="true"] { background: var(--bg-3); box-shadow: inset 0 0 0 3px var(--ink); }
.choice-icon { display: grid; place-items: center; width: 56px; height: 56px; border-radius: 50%; background: var(--bg); margin-bottom: 8px; }
.choice-icon svg.i { width: 28px; height: 28px; }
.choice-t { font-weight: 700; font-size: 1.3rem; }
.choice-s { color: var(--ink-2); font-size: 1rem; }
@media (max-width: 600px) {
  .choices { grid-template-columns: 1fr; }
  .choice { min-height: 0; grid-template-columns: auto 1fr; column-gap: 16px; align-items: center; padding: 16px; }
  .choice-icon { grid-row: span 2; margin: 0; }
}
.panel { display: grid; gap: 18px; animation: enter 0.2s var(--ease); }
.panel .primary { justify-self: start; }

.mic { display: inline-flex; align-items: center; gap: 18px; background: none; border: 0; padding: 4px; font-weight: 700; font-size: 1.25rem; justify-self: start; border-radius: 999px; }
.mic-ring {
  display: grid; place-items: center; width: 96px; height: 96px; border-radius: 50%;
  background: #fff; color: #1b1d1a; position: relative;
  transition: transform 0.2s var(--ease), background-color 0.2s var(--ease);
}
.mic-ring svg.i { width: 40px; height: 40px; }
.mic:hover .mic-ring { transform: scale(1.04); }
.mic[aria-pressed="true"] .mic-ring { background: var(--ink); color: var(--bg); }
.mic[aria-pressed="true"] .mic-ring::after {
  content: ""; position: absolute; inset: -10px; border-radius: 50%; border: 3px solid var(--ink); opacity: 0.4;
  animation: breathe 2.4s ease-in-out infinite;
}
@keyframes breathe { 50% { transform: scale(1.08); opacity: 0.12; } }
.mic:disabled { cursor: not-allowed; }
.mic:disabled .mic-ring { background: var(--bg-3); color: var(--ink-2); }

.drop {
  display: grid; justify-items: center; gap: 8px; text-align: center; padding: 48px 20px; cursor: pointer;
  border-radius: var(--r-l); background: var(--bg-2); box-shadow: inset 0 0 0 3px var(--line);
  transition: box-shadow 0.2s var(--ease), background-color 0.2s var(--ease);
  font-size: 1.2rem;
}
.drop:hover, .drop.over { box-shadow: inset 0 0 0 3px var(--ink); background: var(--bg-3); }
.drop:focus-within { outline: 3px solid var(--ring); outline-offset: 3px; }
.drop input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.drop-icon { display: grid; place-items: center; width: 72px; height: 72px; border-radius: 50%; background: var(--bg); }
.drop-icon svg.i { width: 34px; height: 34px; }

.days { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 8px; }
.day {
  display: grid; justify-items: center; gap: 2px; padding: 12px 4px; border: 0; border-radius: var(--r-m);
  background: transparent; color: var(--ink-2); transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}
.day:hover { background: var(--bg-2); color: var(--ink); }
.day .dn { font-weight: 700; font-size: 0.95rem; }
.day .dd { font-size: 1.5rem; font-weight: 700; line-height: 1.2; color: var(--ink); font-variant-numeric: tabular-nums; }
.day .dc { font-size: 0.8rem; min-height: 1.3em; }
.day[aria-selected="true"] { background: var(--ink); color: var(--bg); }
.day[aria-selected="true"] .dd { color: var(--bg); }
.day.today:not([aria-selected="true"]) { box-shadow: inset 0 0 0 2px var(--ink); }
@media (max-width: 520px) { .day .dc { display: none; } .day .dd { font-size: 1.2rem; } }

.agenda { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.slot {
  display: grid; grid-template-columns: 6.5em 56px minmax(0, 1fr); gap: 18px; align-items: center;
  padding: 14px 14px 14px 0; border-radius: var(--r-m);
}
.slot.clickable { cursor: pointer; transition: background-color 0.15s var(--ease); }
.slot.clickable:hover { background: var(--bg-2); }
.slot time { font-weight: 700; font-variant-numeric: tabular-nums; text-align: right; font-size: 1.05rem; }
.slot time small { display: block; font-weight: 400; color: var(--ink-2); font-size: 0.9rem; }
.slot-icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 16px; background: var(--bg-2); position: relative; }
.slot-icon::after { content: ""; position: absolute; left: -10px; top: 12px; bottom: 12px; width: 4px; border-radius: 4px; background: var(--mc, transparent); }
.slot-icon svg.i { width: 24px; height: 24px; }
.slot.work .slot-icon { background: transparent; box-shadow: inset 0 0 0 2.5px var(--ink); }
.slot.due .slot-icon { background: var(--warn-bg); }
.slot.now-slot { background: var(--bg-2); }
.slot-t { font-weight: 700; font-size: 1.2rem; line-height: 1.3; overflow-wrap: anywhere; }
.slot-s { color: var(--ink-2); font-size: 1rem; display: flex; flex-wrap: wrap; gap: 4px 14px; }
.slot-kind { font-weight: 700; }
.agenda-empty { padding: 36px 0; display: flex; gap: 18px; align-items: center; color: var(--ink-2); font-size: 1.2rem; }
.agenda-empty .big-icon { width: 64px; height: 64px; }
.agenda-empty .big-icon svg.i { width: 30px; height: 30px; }
@media (max-width: 520px) { .slot { grid-template-columns: 4.4em 44px minmax(0, 1fr); gap: 12px; } .slot-icon { width: 44px; height: 44px; border-radius: 14px; } }

/* PATH */
.path { list-style: none; padding: 0; margin: 0; display: grid; gap: clamp(28px, 5vh, 48px); }
.path.compact { gap: 24px; margin-top: 18px; }
.step { display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 18px; position: relative; }
.step:not(:last-child)::before {
  content: ""; position: absolute; left: 27px; top: 64px; bottom: calc(-1 * clamp(28px, 5vh, 48px) + 6px); width: 2px;
  background: repeating-linear-gradient(to bottom, var(--line) 0 6px, transparent 6px 12px);
}
.step-icon { display: grid; place-items: center; width: 56px; height: 56px; border-radius: 50%; background: var(--bg-2); position: relative; }
.step-icon svg.i { width: 26px; height: 26px; }
.step-icon::after { content: ""; position: absolute; right: 0; bottom: 0; width: 16px; height: 16px; border-radius: 50%; background: var(--mc, transparent); box-shadow: 0 0 0 3px var(--bg); }
.step.first .step-icon { background: var(--ink); color: var(--bg); }
.step-body { display: grid; gap: 10px; min-width: 0; padding-top: 4px; }
.step-when { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; color: var(--ink-2); }
.step-title { font-size: clamp(1.35rem, 2.8vw, 1.75rem); line-height: 1.2; font-weight: 700; overflow-wrap: anywhere; }
.step.done .step-title { text-decoration: line-through; text-decoration-thickness: 2px; color: var(--ink-2); }
.note {
  display: flex; gap: 12px; align-items: flex-start; padding: 14px 16px; border-radius: var(--r-m);
  background: var(--warn-bg); font-size: 1rem;
}
.note svg.i { width: 22px; height: 22px; margin-top: 2px; }
.details-grid { display: grid; gap: 8px; color: var(--ink-2); font-size: 1rem; }
.details-grid div { display: flex; gap: 10px; align-items: center; }
.step-actions { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center; }
.step-actions .secondary { min-height: 48px; padding: 8px 18px; font-size: 1rem; }

/* Sheets (dialogs) */
.sheet {
  border: 0; padding: clamp(22px, 4vw, 40px); border-radius: var(--r-l); width: min(760px, calc(100vw - 24px));
  max-height: calc(100dvh - 24px); background: var(--bg); color: var(--ink); box-shadow: 0 30px 80px rgba(0, 0, 0, 0.3);
  overscroll-behavior: contain;
}
.sheet.small { width: min(560px, calc(100vw - 24px)); }
.sheet::backdrop { background: var(--scrim); backdrop-filter: blur(3px); }
.sheet[open] { animation: rise 0.24s var(--ease); }
@keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.sheet form { display: grid; gap: 18px; }
.actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 12px; margin-top: 8px; }
.actions .primary { min-height: 56px; padding: 12px 26px; font-size: 1.15rem; }
.actions .secondary { min-height: 56px; }

.review { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; max-height: 52vh; overflow: auto; overscroll-behavior: contain; padding: 4px; }
.rv { border-radius: var(--r-m); background: var(--bg-2); padding: 14px 16px; transition: opacity 0.2s var(--ease), background-color 0.2s var(--ease); }
.rv-top { display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 14px; align-items: start; cursor: pointer; }
.rv-check {
  appearance: none; width: 36px; height: 36px; min-height: 0; padding: 0; margin: 2px 0 0; border-radius: 10px; cursor: pointer;
  background: var(--bg); box-shadow: inset 0 0 0 2.5px var(--ink-2); display: grid; place-items: center;
}
.rv-check:checked { background: var(--ink); box-shadow: none; }
.rv-check:focus-visible { outline: 3px solid var(--ring); outline-offset: 3px; }
.rv-check:checked::after {
  content: ""; width: 10px; height: 18px; border: solid var(--bg); border-width: 0 3.5px 3.5px 0; transform: translateY(-2px) rotate(45deg);
}
.rv-t { font-weight: 700; font-size: 1.2rem; line-height: 1.3; overflow-wrap: anywhere; }
.rv-s { color: var(--ink-2); display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 1rem; margin-top: 4px; }
.rv.off { opacity: 0.5; }
.rv.off .rv-t { text-decoration: line-through; }
.rv .disclose { margin-left: 54px; }
.rv .disclose summary { min-height: 40px; padding: 4px 0; }
.rv-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.rv-src { grid-column: 1 / -1; color: var(--ink-2); font-style: italic; font-size: 0.95rem; }
@media (max-width: 560px) { .rv-fields { grid-template-columns: 1fr; } .rv .disclose { margin-left: 0; } }

/* Toast (overlays; never pushes layout) */
.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%); z-index: 60;
  display: flex; align-items: center; gap: 14px; width: max-content; max-width: calc(100vw - 24px);
  background: var(--ink); color: var(--bg); padding: 12px 12px 12px 18px; border-radius: 999px; font-weight: 700;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25); animation: rise 0.22s var(--ease);
}
.toast-icon svg.i { width: 22px; height: 22px; }
.toast-undo { display: inline-flex; align-items: center; gap: 6px; border: 0; background: color-mix(in srgb, var(--bg) 16%, transparent); color: var(--bg); padding: 8px 16px; border-radius: 999px; font-weight: 700; min-height: 44px; }
.toast-undo:hover { background: color-mix(in srgb, var(--bg) 28%, transparent); }
@media (max-width: 720px) { .toast { bottom: 96px; border-radius: 24px; } }

/* Agenda rows are real buttons for keyboard users */
button.slot { width: 100%; border: 0; background: none; color: inherit; text-align: left; font: inherit; }
button.slot.now-slot { background: var(--bg-2); }
a.primary, a.secondary { text-decoration: none; justify-self: start; }
.agenda > li { list-style: none; }
.rv input, .rv select { background: var(--bg); }
.rv input:hover { background: var(--bg); box-shadow: inset 0 0 0 2px var(--line); }
.disclose summary svg.i { transform-origin: 50% 50%; }

/* Parser confidence notes in the review sheet: icon + words, calm background */
.rv-flags { display: grid; gap: 6px; margin-top: 10px; }
.rv-flags > span { display: flex; gap: 8px; align-items: flex-start; font-size: 0.95rem; background: var(--warn-bg); padding: 6px 10px; border-radius: 10px; }
.rv-flags svg.i { width: 18px; height: 18px; margin-top: 2px; }

/* Notes: PDF reader beside a scratchpad */
.stack.wide { max-width: 1400px; }
.notes-grid { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: var(--gap); align-items: start; }
@media (max-width: 900px) { .notes-grid { grid-template-columns: 1fr; } }
.reader, .pad { display: grid; gap: 14px; }
.pad { position: sticky; top: 16px; }
.pad textarea { min-height: 60vh; }
.file-btn { justify-self: start; }
.file-btn:focus-within { outline: 3px solid var(--ring); outline-offset: 3px; }
.pages { display: grid; gap: 12px; max-height: 80vh; overflow: auto; border-radius: var(--r-s); }
.pages canvas { width: 100%; height: auto; background: #fff; border-radius: var(--r-s); }
@media print {
  body.printing-notes > :not(#printNotes) { display: none !important; }
  body.printing-notes #printNotes { display: block !important; white-space: pre-wrap; color: #000; background: #fff; }
}
.export-menu > summary { list-style: none; }
.export-menu > summary::-webkit-details-marker { display: none; }

/* Main tabs across the three spaces: Workspace (/start), Planner (/demo/), Tutor (/start/tutor). */
.main-tabs { display: flex; justify-content: center; gap: 4px; padding: 8px 12px 0; }
.main-tabs a { flex: 0 1 140px; text-align: center; padding: 8px 12px; border-radius: 999px; text-decoration: none; font-weight: 700; color: var(--ink-2); }
.main-tabs a:hover { color: var(--ink); background: var(--bg-2); }
.main-tabs a[aria-current="page"] { color: var(--ink); background: var(--bg-3); }

/* Planner screens sit on a panel, like the windows in Workspace and Tutor.
   Inside a panel, surfaces that used --bg-2 take the page colour so they still stand out. */
body.planner { --panel: var(--bg-2); --page: var(--bg); }
.planner main { padding: 0 clamp(12px, 2vw, 24px) clamp(12px, 2vw, 24px); }
.planner .screen { background: var(--panel); border-radius: var(--r-l); padding: clamp(20px, 3vw, 40px); min-height: calc(100dvh - 180px); --bg-2: var(--page); }
.planner .stack, .planner .now { margin-left: 0; }
.planner main:focus { outline: none; } /* focused by code on each screen change, not by the student */
@media (max-width: 720px) { .planner main { padding-bottom: 110px; } .planner .screen { min-height: 0; } }

/* Dropdowns: a styled open list where the browser allows it (Chrome, Edge); others keep their own list. */
select, ::picker(select) { appearance: base-select; }
select { display: flex; align-items: center; gap: 8px; cursor: pointer; }
select::picker-icon { margin-inline-start: auto; color: var(--ink-2); transition: rotate 0.2s var(--ease); }
select:open::picker-icon { rotate: 180deg; }
::picker(select) { border: 0; margin-block: 8px; padding: 8px; border-radius: var(--r-m); background: var(--bg-2); color: var(--ink); box-shadow: 0 18px 50px rgb(0 0 0 / 0.3); }
option { padding: 10px 14px; border-radius: var(--r-s); font-weight: 700; color: var(--ink-2); cursor: pointer; }
option:hover, option:focus-visible { background: var(--bg-3); color: var(--ink); outline: none; }
option:checked { color: var(--ink); background: var(--bg-3); }
option::checkmark { display: none; }