/* ============ tokens ============ */
:root {
  color-scheme: dark;
  --bg: #0b0a14;
  --bg-2: #13111f;
  --card: rgba(255, 255, 255, 0.055);
  --card-solid: #161425;
  --card-hover: rgba(255, 255, 255, 0.075);
  --border: rgba(255, 255, 255, 0.09);
  --text: #f5f3ff;
  --muted: #a7a3c2;
  --accent: #a78bfa;
  --accent-ink: #0b0a14;
  --grad: linear-gradient(120deg, #8b5cf6 0%, #ec4899 55%, #fb923c 100%);
  --good: #34d399;
  --good-bg: rgba(52, 211, 153, 0.13);
  --warn: #fbbf24;
  --warn-bg: rgba(251, 191, 36, 0.13);
  --bad: #fb7185;
  --bad-bg: rgba(251, 113, 133, 0.14);
  --info-bg: rgba(167, 139, 250, 0.14);
  --grid: rgba(255, 255, 255, 0.08);
  --blob-1: #7c3aed;
  --blob-2: #db2777;
  --blob-3: #0891b2;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
  /* categorical series (validated reference palette, dark steps) */
  --series-1: #3987e5; --series-2: #d95926; --series-3: #199e70; --series-4: #c98500;
  --series-5: #d55181; --series-6: #008300; --series-7: #9085e9; --series-8: #e66767;
  --series-other: #6b6880;
  --radius: 22px;
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f6f3ff;
  --bg-2: #ffffff;
  --card: rgba(255, 255, 255, 0.8);
  --card-solid: #ffffff;
  --card-hover: rgba(255, 255, 255, 0.95);
  --border: rgba(40, 20, 90, 0.1);
  --text: #16132b;
  --muted: #625e7c;
  --accent: #7c3aed;
  --accent-ink: #ffffff;
  --good: #047857;
  --good-bg: rgba(16, 185, 129, 0.14);
  --warn: #a16207;
  --warn-bg: rgba(245, 158, 11, 0.16);
  --bad: #be123c;
  --bad-bg: rgba(244, 63, 94, 0.12);
  --info-bg: rgba(124, 58, 237, 0.1);
  --grid: rgba(40, 20, 90, 0.09);
  --blob-1: #c4b5fd;
  --blob-2: #f9a8d4;
  --blob-3: #a5f3fc;
  --shadow: 0 10px 30px rgba(60, 30, 120, 0.1);
  --series-1: #2a78d6; --series-2: #eb6834; --series-3: #1baf7a; --series-4: #eda100;
  --series-5: #e87ba4; --series-6: #008300; --series-7: #4a3aa7; --series-8: #e34948;
  --series-other: #9a97ad;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    color-scheme: light;
    --bg: #f6f3ff; --bg-2: #ffffff; --card: rgba(255, 255, 255, 0.8); --card-solid: #ffffff;
    --card-hover: rgba(255, 255, 255, 0.95); --border: rgba(40, 20, 90, 0.1); --text: #16132b;
    --muted: #625e7c; --accent: #7c3aed; --accent-ink: #ffffff; --good: #047857;
    --good-bg: rgba(16, 185, 129, 0.14); --warn: #a16207; --warn-bg: rgba(245, 158, 11, 0.16);
    --bad: #be123c; --bad-bg: rgba(244, 63, 94, 0.12); --info-bg: rgba(124, 58, 237, 0.1);
    --grid: rgba(40, 20, 90, 0.09); --blob-1: #c4b5fd; --blob-2: #f9a8d4; --blob-3: #a5f3fc;
    --shadow: 0 10px 30px rgba(60, 30, 120, 0.1);
    --series-1: #2a78d6; --series-2: #eb6834; --series-3: #1baf7a; --series-4: #eda100;
    --series-5: #e87ba4; --series-6: #008300; --series-7: #4a3aa7; --series-8: #e34948;
    --series-other: #9a97ad;
  }
}

/* ============ base ============ */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  font: 16px/1.55 var(--font);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration-thickness: 1.5px; text-underline-offset: 3px; }
h1, h2, h3 { font-family: var(--font-display); letter-spacing: -0.02em; line-height: 1.15; margin: 0 0 10px; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1.05rem; }
p { margin: 6px 0; }
[hidden] { display: none !important; }
::selection { background: #ec4899; color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 8px; }

.blobs { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; contain: strict; }
.blobs i { position: absolute; width: 46vmax; height: 46vmax; border-radius: 50%; filter: blur(90px); opacity: .28; animation: float 22s ease-in-out infinite alternate; will-change: transform; }
.blobs i:nth-child(1) { background: var(--blob-1); top: -18vmax; left: -12vmax; }
.blobs i:nth-child(2) { background: var(--blob-2); top: 20vh; right: -20vmax; animation-delay: -7s; }
.blobs i:nth-child(3) { background: var(--blob-3); bottom: -25vmax; left: 20vw; animation-delay: -14s; opacity: .18; }
@keyframes float { to { transform: translate(6vmax, 4vmax) scale(1.08); } }

/* ============ top bar & nav ============ */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 12px max(16px, env(safe-area-inset-left));
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font: 700 1.35rem var(--font-display); letter-spacing: -0.03em; }
.logo-mark { width: 34px; height: 34px; filter: drop-shadow(0 4px 14px rgba(236, 72, 153, .45)); transition: transform .3s; }
.brand:hover .logo-mark { transform: rotate(-8deg) scale(1.06); }
.nav { display: flex; align-items: center; gap: 8px; }
.nav-link { color: var(--text); text-decoration: none; font-weight: 600; padding: 8px 10px; }
.tabs { display: flex; gap: 4px; padding: 4px; border-radius: 999px; background: var(--card); border: 1px solid var(--border); }
.tab { display: flex; align-items: center; gap: 6px; padding: 7px 14px; border-radius: 999px; color: var(--muted); text-decoration: none; font-weight: 600; font-size: .92rem; transition: background .2s, color .2s; }
.tab:hover { color: var(--text); }
.tab.active { background: var(--grad); color: #fff; box-shadow: 0 6px 20px rgba(236, 72, 153, .35); }
.icon-btn {
  display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--border); background: var(--card); color: var(--text);
  font-size: 1rem; cursor: pointer; text-decoration: none; transition: transform .15s, background .2s;
}
.icon-btn:hover { background: var(--card-hover); transform: translateY(-1px); }
.only-light { display: none; }
:root[data-theme="light"] .only-dark { display: none; }
:root[data-theme="light"] .only-light { display: inline; }
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .only-dark { display: none; }
  :root:not([data-theme="dark"]) .only-light { display: inline; }
}

main { max-width: 1120px; margin: 0 auto; padding: 24px 16px 120px; }

/* ============ primitives ============ */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: .72rem; font-weight: 700; color: var(--muted); margin: 0 0 4px; }
.display { font-size: clamp(2.3rem, 6vw, 4.2rem); line-height: 1.02; margin: 18px 0; }
.display-sm { font-size: clamp(1.6rem, 4vw, 2.3rem); }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 600px; margin: 0 auto; }
.muted { color: var(--muted); }
.small { font-size: .86rem; }
.center { text-align: center; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.inline { display: inline; }
.big-emoji { font-size: 2.6rem; margin: 0; }
.back { text-decoration: none; font-weight: 600; }
.section-title { font-size: 1.35rem; margin: 26px 0 12px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 600 .95rem var(--font); border: 0; border-radius: 999px; padding: 11px 20px;
  background: var(--grad); color: #fff; cursor: pointer; text-decoration: none;
  box-shadow: 0 8px 24px rgba(236, 72, 153, .28);
  transition: transform .15s ease, box-shadow .2s, filter .2s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(236, 72, 153, .38); filter: saturate(1.15); }
.btn:active { transform: translateY(0) scale(.97); }
.btn-sm { padding: 7px 14px; font-size: .86rem; }
.btn-lg { padding: 14px 26px; font-size: 1.05rem; }
.btn-block { width: 100%; }
.btn-ghost { background: var(--card); color: var(--text); border: 1px solid var(--border); box-shadow: none; }
.btn-ghost:hover { background: var(--card-hover); box-shadow: none; }
.btn-danger { background: var(--bad); color: #fff; box-shadow: none; }
button.link { background: none; border: 0; padding: 0; font: inherit; color: var(--accent); cursor: pointer; font-size: .9rem; }
button.link.danger { color: var(--bad); }

.chip {
  display: inline-flex; align-items: center; gap: 4px; padding: 3px 10px; border-radius: 999px;
  font-size: .78rem; font-weight: 700; background: var(--info-bg); color: var(--text);
  border: 1px solid var(--border); text-decoration: none; white-space: nowrap;
}
.chip.good { background: var(--good-bg); color: var(--good); }
.chip.warn { background: var(--warn-bg); color: var(--warn); }
.chip.bad { background: var(--bad-bg); color: var(--bad); }
.chip.glow { background: var(--card); box-shadow: 0 0 0 1px rgba(236, 72, 153, .3), 0 0 30px rgba(236, 72, 153, .25); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }

/* forms */
.stack { display: flex; flex-direction: column; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 6px; font-size: .86rem; font-weight: 600; color: var(--muted); }
.grow { flex: 1 1 200px; }
.row-form { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; }
input, select {
  font: 500 1rem var(--font); color: var(--text); background: var(--bg-2);
  border: 1px solid var(--border); border-radius: 14px; padding: 11px 14px; min-width: 0; width: 100%;
  transition: border-color .2s, box-shadow .2s;
}
.row-form input, .row-form select { width: auto; }
.row-form .grow input { width: 100%; }
input:focus, select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent); }
fieldset { border: 0; padding: 0; margin: 0; }
legend { font-size: .86rem; font-weight: 600; color: var(--muted); margin-bottom: 8px; padding: 0; }
.hint { background: var(--info-bg); border-radius: 14px; padding: 10px 14px; font-size: .9rem; margin: 0; }
.pw { position: relative; display: block; }
.pw-toggle { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); background: none; border: 0; cursor: pointer; font-size: 1.1rem; }

.emoji-pick { display: flex; flex-wrap: wrap; gap: 8px; }
.emoji-pick label { position: relative; cursor: pointer; }
.emoji-pick input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.emoji-pick span {
  display: inline-grid; place-items: center; width: 44px; height: 44px; font-size: 1.35rem;
  border-radius: 14px; border: 1px solid var(--border); background: var(--bg-2); transition: transform .15s;
}
.emoji-pick label:hover span { transform: translateY(-2px); }
.emoji-pick input:checked + span { border-color: transparent; box-shadow: 0 0 0 2px #ec4899, 0 6px 18px rgba(236, 72, 153, .35); transform: scale(1.08); }
.emoji-pick input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }

/* term cards + section grid */
.term-roman {
  flex: none; display: grid; place-items: center; width: 48px; height: 48px; border-radius: 14px;
  font: 700 1.2rem var(--font-display); background: var(--card); border: 1px solid var(--border); color: var(--text);
}
.section-grid { display: grid; grid-template-columns: repeat(9, minmax(0, 1fr)); gap: 6px; }
.section-grid label { position: relative; cursor: pointer; }
.section-grid input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.section-grid span {
  display: grid; place-items: center; aspect-ratio: 1; border-radius: 14px; font: 700 1.05rem var(--font-display);
  border: 1px solid var(--border); background: var(--bg-2); transition: transform .15s;
}
.section-grid label:hover span { transform: translateY(-2px); }
.section-grid input:checked + span { background: var(--grad); color: #fff; border-color: transparent; box-shadow: 0 6px 18px rgba(236, 72, 153, .35); transform: scale(1.06); }
.section-grid input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }

.term-badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px 6px 10px; border-radius: 999px;
  font-weight: 700; font-size: .88rem; color: var(--text); text-decoration: none;
  background: linear-gradient(var(--card-solid), var(--card-solid)) padding-box, var(--grad) border-box;
  border: 1.5px solid transparent;
}
.term-badge i { width: 4px; height: 4px; border-radius: 50%; background: var(--muted); }

/* up next */
.up-next { display: flex; align-items: center; gap: 12px; margin-top: 14px; padding: 10px 16px 10px 12px; border-radius: 18px; background: var(--card); border: 1px solid var(--border); width: fit-content; max-width: 100%; }
.up-next p { margin: 0; }
.up-next .eyebrow { margin-bottom: 2px; }
.up-emoji { font-size: 1.6rem; }
.up-next.is-live { box-shadow: 0 0 0 2px var(--good); }
.up-next.is-live .js-up-when { background: var(--good-bg); color: var(--good); }

/* week strip */

/* timetable week nav */
.week-nav { display: flex; align-items: center; gap: 10px; margin: 0 0 14px; flex-wrap: wrap; }
.week-nav-label { display: flex; flex-direction: column; min-width: 180px; }

/* flash (JS turns it into a toast) */
.flash { padding: 12px 16px; border-radius: 16px; margin: 0 0 16px; font-weight: 600; border: 1px solid var(--border); }
.flash.success { background: var(--good-bg); }
.flash.error { background: var(--bad-bg); }
.flash.info { background: var(--info-bg); }
.js .flash { display: none; }
.toasts { position: fixed; left: 50%; bottom: 96px; transform: translateX(-50%); z-index: 50; display: flex; flex-direction: column; gap: 8px; align-items: center; pointer-events: none; width: min(92vw, 440px); }
.toast {
  pointer-events: auto; padding: 12px 18px; border-radius: 18px; font-weight: 600;
  background: var(--card-solid); color: var(--text); border: 1px solid var(--border);
  box-shadow: 0 16px 40px rgba(0, 0, 0, .35); animation: toast-in .35s cubic-bezier(.2, 1.4, .4, 1);
}
.toast.error { box-shadow: 0 0 0 2px var(--bad), 0 16px 40px rgba(0, 0, 0, .35); }
.toast.out { animation: toast-out .3s forwards; }
@keyframes toast-in { from { opacity: 0; transform: translateY(20px) scale(.9); } }
@keyframes toast-out { to { opacity: 0; transform: translateY(10px) scale(.95); } }

/* ============ landing ============ */
.hero { text-align: center; padding: 40px 0 20px; }
.cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin: 28px 0; }
.hero-preview { max-width: 480px; margin: 30px auto 0; text-align: left; transform: rotate(-1.5deg); }
.mini-row { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border); }
.mini-row .muted { flex: 1; font-size: .88rem; }
.mini-foot { margin: 12px 0 0; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); opacity: .5; flex: none; }
.dot.live { background: var(--good); opacity: 1; box-shadow: 0 0 0 0 var(--good); animation: pulse 1.6s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px transparent; } }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; margin-top: 40px; }
.feature { transition: transform .2s; }
.feature:hover { transform: translateY(-4px) rotate(-.5deg); }
.feature-emoji { font-size: 2rem; }

.auth-card { max-width: 480px; margin: 24px auto; }

/* ============ dashboard ============ */
.hello { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 18px; }
.vibe-card { display: flex; align-items: center; gap: 18px; margin: 0; padding: 14px 22px 14px 14px; max-width: 440px; }
.vibe-label { font: 700 1.2rem var(--font-display); margin: 2px 0; }
.ring { flex: none; }
.ring-track { fill: none; stroke: var(--grid); stroke-width: 12; }
.ring-fill { fill: none; stroke-width: 12; stroke-linecap: round; transform: rotate(-90deg); transform-origin: 70px 70px; animation: ring-in 1.1s cubic-bezier(.2, .9, .3, 1); }
.tone-good .ring-fill { stroke: var(--good); }
.tone-warn .ring-fill { stroke: var(--warn); }
.tone-bad .ring-fill { stroke: var(--bad); }
.tone-neutral .ring-fill { stroke: var(--accent); }
@keyframes ring-in { from { stroke-dashoffset: var(--c); } }
.ring-value { font: 700 36px var(--font-display); fill: var(--text); text-anchor: middle; }
.ring-unit { font-size: 18px; }
.ring-caption { font: 600 12px var(--font); fill: var(--muted); text-anchor: middle; letter-spacing: .08em; text-transform: uppercase; }

.dash-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 16px; align-items: start; }
.dash-side .section-title { margin-top: 0; }
.card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 12px; }
.card-head h2 { margin: 0; }
.date-nav { display: flex; gap: 6px; align-items: center; }
.banner { padding: 12px 14px; border-radius: 16px; background: var(--info-bg); font-weight: 600; margin-bottom: 12px; }

.class-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.class-row {
  display: grid; grid-template-columns: 58px 1fr auto; gap: 12px; align-items: center;
  padding: 12px 12px 12px 14px; border-radius: 18px; background: var(--bg-2);
  border: 1px solid var(--border); position: relative; overflow: hidden; transition: transform .2s, box-shadow .3s;
}
.class-row::before { content: ""; position: absolute; left: 0; top: 10px; bottom: 10px; width: 4px; border-radius: 4px; background: var(--subject); }
.class-row.is-live { box-shadow: 0 0 0 2px var(--good), 0 10px 30px color-mix(in srgb, var(--good) 25%, transparent); transform: scale(1.01); }
.class-row.is-done:not(.is-live) .class-time { opacity: .6; }
.class-time { display: flex; flex-direction: column; font-variant-numeric: tabular-nums; line-height: 1.2; }
.class-time b { font-family: var(--font-display); }
.class-time span { color: var(--muted); font-size: .8rem; }
.class-title { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-weight: 700; }
.class-title a { color: var(--text); text-decoration: none; font-family: var(--font-display); font-size: 1.05rem; }
.class-title a:hover { text-decoration: underline; }
.class-emoji { font-size: 1.1rem; }
.live-badge { font-size: .72rem; font-weight: 800; color: var(--good); background: var(--good-bg); padding: 2px 8px; border-radius: 999px; animation: blink 1.4s infinite; }
@keyframes blink { 50% { opacity: .55; } }

.segs { display: flex; gap: 4px; padding: 4px; border-radius: 16px; background: var(--card); border: 1px solid var(--border); }
.seg {
  display: inline-flex; align-items: center; gap: 4px; border: 0; background: transparent; color: var(--muted);
  border-radius: 12px; padding: 7px 9px; font: 600 .82rem var(--font); cursor: pointer; transition: background .2s, transform .15s, color .2s;
}
.seg:hover { background: var(--card-hover); color: var(--text); transform: translateY(-1px); }
.seg:active { transform: scale(.92); }
.seg-label { display: none; }
.seg.on { color: var(--text); }
.seg.on .seg-label { display: inline; }
.seg-present.on { background: var(--good-bg); box-shadow: inset 0 0 0 1.5px var(--good); }
.seg-absent.on { background: var(--bad-bg); box-shadow: inset 0 0 0 1.5px var(--bad); }
.seg-cancelled.on { background: var(--info-bg); box-shadow: inset 0 0 0 1.5px var(--muted); }
.seg-undo { font-size: .95rem; }
.segs-lg { width: fit-content; }
.segs-lg .seg { padding: 10px 14px; font-size: .95rem; }
.segs-lg .seg-label { display: inline; }

.whole-day { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--border); }
.js-nudge { margin-top: 12px; }
.empty { text-align: center; padding: 18px 0 8px; }

.catchup-list, .catchup-classes { list-style: none; padding: 0; margin: 0; }
.catchup-day { padding: 12px 0; border-bottom: 1px solid var(--border); }
.catchup-day:last-child { border-bottom: 0; }
.catchup-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 6px; }
.catchup-head a { color: var(--text); text-decoration: none; min-width: 0; }
.backlog .btn { white-space: nowrap; flex-shrink: 0; }
.catchup-classes li { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 6px 0 6px 10px; border-left: 3px solid var(--subject, var(--border)); }
.catchup-class { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.catchup-classes .segs { flex-shrink: 0; }
.catchup-classes .seg { flex: 0 0 auto; }
.catchup-more { margin-top: 8px; }
.catchup-more summary { cursor: pointer; color: var(--muted); font-size: .9rem; padding: 6px 0; }

.tiles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.tiles .card { margin: 0; }
.tiles-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); margin-bottom: 16px; }
.tile { padding: 16px; transition: transform .2s; }
.tile:hover { transform: translateY(-3px); }
.tile-wide { grid-column: span 2; }
.tile-big { font: 700 1.55rem var(--font-display); margin: 2px 0 4px; letter-spacing: -0.02em; }
.small-big { font-size: 1.1rem; }
.mini-list { margin: 6px 0 0; padding-left: 18px; font-size: .88rem; }
.mini-list a { color: var(--text); font-weight: 700; }

.vbars { width: 100%; max-width: 340px; height: auto; margin-top: 8px; overflow: visible; }
.vbar-mark { fill: var(--series-other); opacity: .55; transition: opacity .2s; }
.vbar.hot .vbar-mark { fill: var(--accent); opacity: 1; }
.vbar:hover .vbar-mark, .vbar:focus .vbar-mark { opacity: 1; }
.vbar:focus { outline: none; }
.vbar-value { font: 700 12px var(--font); fill: var(--text); text-anchor: middle; }
.vbar-label { font: 600 11px var(--font); fill: var(--muted); text-anchor: middle; }
.axis { stroke: var(--grid); stroke-width: 1; }

.bar { position: relative; height: 10px; border-radius: 999px; background: var(--grid); margin: 8px 0; }
.bar-fill { display: block; height: 100%; border-radius: 999px; background: var(--grad); animation: grow 1s cubic-bezier(.2, .9, .3, 1); transform-origin: left; }
@keyframes grow { from { transform: scaleX(0); } }
.bar-target { position: absolute; top: -4px; width: 2px; height: 18px; border-radius: 2px; background: var(--text); opacity: .7; }

.subject-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.subject-card { display: block; color: var(--text); text-decoration: none; margin: 0; position: relative; overflow: hidden; transition: transform .2s, box-shadow .2s; }
.subject-card::after { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 4px; background: var(--subject); }
.subject-card:hover { transform: translateY(-4px) rotate(-.4deg); box-shadow: 0 18px 44px rgba(0, 0, 0, .35); }
.subject-card h3 { margin: 10px 0 0; font-size: 1.25rem; }
.subject-top { display: flex; justify-content: space-between; align-items: center; }
.subject-emoji { font-size: 1.6rem; }
.subject-pct { font: 700 2rem var(--font-display); margin: 6px 0 0; letter-spacing: -0.03em; }
.clamp { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ============ subject page ============ */
.subject-hero { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; margin-bottom: 16px; }
.subject-big { font: 700 clamp(3rem, 9vw, 5rem) var(--font-display); letter-spacing: -0.05em; line-height: 1; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.two-col { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.two-col .card { margin-bottom: 0; }
.two-col + * { margin-top: 16px; }
.slot-list { list-style: none; padding: 0; margin: 0 0 12px; }
.slot-list li { padding: 8px 0; border-bottom: 1px solid var(--border); }
details summary { cursor: pointer; font-weight: 700; color: var(--accent); margin-bottom: 10px; }
.danger-zone { margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--border); display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }

.trend { position: relative; }
.trend svg { width: 100%; height: auto; display: block; }
.grid { stroke: var(--grid); stroke-width: 1; }
.tick { font: 500 11px var(--font); fill: var(--muted); }
.target-line { stroke: var(--muted); stroke-width: 1; opacity: .8; }
.target-label { font-weight: 700; }
.trend-line { fill: none; stroke: var(--series-1); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.tg-top { stop-color: var(--series-1); stop-opacity: .28; }
.tg-bottom { stop-color: var(--series-1); stop-opacity: 0; }
.trend-end, .hover-dot { fill: var(--series-1); stroke: var(--card-solid); stroke-width: 2; }
.crosshair { stroke: var(--muted); stroke-width: 1; }
.chart-tip {
  position: absolute; pointer-events: none; transform: translate(-50%, -120%);
  background: var(--card-solid); border: 1px solid var(--border); border-radius: 12px;
  padding: 6px 10px; font-size: .82rem; white-space: nowrap; box-shadow: var(--shadow);
}
.svg-tip { position: fixed; z-index: 60; pointer-events: none; background: var(--card-solid); border: 1px solid var(--border); border-radius: 10px; padding: 5px 9px; font-size: .8rem; font-weight: 600; box-shadow: var(--shadow); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 8px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
th { font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }

/* ============ timetable ============ */
.page-head { margin-bottom: 18px; }
.tt-week { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 10px; margin-bottom: 18px; }
.tt-day { background: var(--card); border: 1px solid var(--border); border-radius: 18px; padding: 12px; min-height: 140px; }
.tt-day.is-today { box-shadow: 0 0 0 2px #ec4899, 0 10px 30px rgba(236, 72, 153, .25); }
.tt-day h3 { font-size: .95rem; margin-bottom: 8px; }
.tt-class { display: flex; flex-direction: column; gap: 2px; padding: 8px 10px; margin-bottom: 6px; border-radius: 12px; background: var(--bg-2); color: var(--text); text-decoration: none; border-left: 4px solid var(--subject); font-size: .88rem; transition: transform .15s; }
.tt-class:hover { transform: translateX(3px); }
.tt-class .small { color: var(--muted); }
.tt-note { font-size: .8rem; font-weight: 600; background: var(--info-bg); padding: 6px 8px; border-radius: 10px; }

/* ============ admin ============ */
.copy-row { display: flex; gap: 8px; }
.reset-box { box-shadow: 0 0 0 2px #ec4899, var(--shadow); }

/* ============ mobile ============ */
@media (max-width: 900px) {
  .dash-grid, .two-col { grid-template-columns: 1fr; }
  .tt-week { grid-template-columns: 1fr; }
  .tt-day { min-height: 0; }
  .tiles-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  main { padding: 16px 16px 120px; }
  /* backdrop-filter would make the header the containing block of the fixed tab bar */
  .topbar { backdrop-filter: none; -webkit-backdrop-filter: none; background: var(--bg); }
  .tabs {
    position: fixed; left: 50%; transform: translateX(-50%); bottom: max(14px, env(safe-area-inset-bottom));
    z-index: 30; padding: 6px; background: color-mix(in srgb, var(--card-solid) 85%, transparent);
    backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); box-shadow: 0 14px 40px rgba(0, 0, 0, .4);
  }
  .tab { flex-direction: column; gap: 0; padding: 6px 16px; font-size: .72rem; }
  .tab-icon { font-size: 1.2rem; }
  .vibe-card { max-width: none; width: 100%; }
  .class-row { grid-template-columns: 50px 1fr; }
  .class-actions { grid-column: 1 / -1; }
  .class-actions .segs { width: 100%; justify-content: space-between; }
  .seg { flex: 1; justify-content: center; }
  .seg-undo { flex: 0; }
  .tiles { grid-template-columns: 1fr 1fr; }
  .tile-big { font-size: 1.25rem; }
  .section-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .hero-preview { transform: none; }
  .row-form > * { flex: 1 1 120px; }
  .row-form input, .row-form select { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* confetti canvas */
.confetti { position: fixed; inset: 0; pointer-events: none; z-index: 70; }

/* sessions check + disclaimer */
.sessions-card { box-shadow: 0 0 0 2px #ec4899, var(--shadow); }
.sv-list { list-style: none; margin: 12px 0; padding: 0; }
.sv-list li { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--border); }
.sv-list li:last-child { border-bottom: 0; }
.sv-name small { display: block; font-size: .8rem; }
.sv-list input { width: 84px; text-align: center; font-weight: 700; }
.sv-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.warn-text { color: var(--warn); font-weight: 600; }
.note { padding: 12px 16px; border-radius: 16px; background: var(--warn-bg); border: 1px solid var(--border); margin: 0 0 16px; font-size: .92rem; }
.disclaimer { margin: 28px auto 0; max-width: 720px; text-align: center; font-size: .8rem; color: var(--muted); }
.check { display: flex; align-items: center; gap: 8px; font-size: .9rem; color: var(--muted); cursor: pointer; }
.check input { width: auto; accent-color: #ec4899; }

/* whole-day buttons stay on one row */
.whole-day { flex-direction: column; align-items: flex-start; }
.whole-day-btns { display: flex; gap: 8px; flex-wrap: nowrap; }
.whole-day-btns .btn { white-space: nowrap; }
@media (max-width: 520px) {
  .whole-day-btns { width: 100%; gap: 6px; }
  .whole-day-btns .btn { flex: 1; padding: 8px 6px; font-size: .78rem; }
}

/* daily quote */
.quote-card { position: relative; overflow: hidden; margin-bottom: 12px; }
.quote-card::before { content: "“"; position: absolute; right: 14px; bottom: -40px; font: 700 10rem/1 var(--font-display); background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; opacity: .12; pointer-events: none; }
.quote-head { display: flex; justify-content: space-between; align-items: center; }
.quote-head .icon-btn { width: 32px; height: 32px; font-size: .9rem; }
.quote-text { font: 600 1.15rem/1.4 var(--font-display); margin: 8px 0 12px; letter-spacing: -0.01em; }
.quote-text.swap { animation: quote-in .35s ease; }
@keyframes quote-in { from { opacity: 0; transform: translateY(6px); } }

/* fixed term + consent + footer */
.term-fixed { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 18px; background: var(--bg-2); border: 1px solid var(--border); }
.term-fixed .term-roman { background: var(--grad); color: #fff; border-color: transparent; }
.term-fixed b { display: block; font-family: var(--font-display); }
.term-fixed small { color: var(--muted); }
.consent { padding: 14px 16px; border-radius: 18px; background: var(--warn-bg); border: 1px solid var(--border); font-size: .88rem; }
.consent p { margin: 0 0 6px; }
.consent ul { margin: 0 0 10px; padding-left: 18px; }
.consent li { margin: 4px 0; }
.consent .check { color: var(--text); font-weight: 600; }
.site-foot { max-width: 760px; margin: -72px auto 0; padding: 0 16px 120px; text-align: center; font-size: .76rem; line-height: 1.5; color: var(--muted); opacity: .85; }
.site-foot p { margin: 2px 0; }
.site-foot a { color: inherit; font-weight: 600; }
.dash-grid > * { min-width: 0; }
@media (max-width: 520px) {
  .whole-day-btns .btn { min-width: 0; gap: 4px; }
}
@media (max-width: 380px) {
  .whole-day-btns .btn { font-size: .72rem; padding: 8px 4px; }
}

/* Google button */
.btn-google { background: #fff; color: #1f1f1f; border: 1px solid var(--border); box-shadow: 0 4px 14px rgba(0, 0, 0, .08); }
.btn-google:hover { background: #fff; box-shadow: 0 8px 22px rgba(0, 0, 0, .14); filter: none; }
.or { display: flex; align-items: center; gap: 10px; margin: 14px 0 4px; color: var(--muted); font-size: .8rem; }
.or::before, .or::after { content: ""; flex: 1; height: 1px; background: var(--border); }

.legal { max-width: 760px; margin: 0 auto 16px; }
.legal h2 { margin-top: 22px; }
.legal ul { padding-left: 20px; }
.pct-empty { font: 600 1.05rem var(--font-display); color: var(--muted); letter-spacing: 0; }

/* ---------- Bunky: welcome pop-up + setup robot ---------- */
.welcome-overlay {
  position: fixed; inset: 0; z-index: 80; display: grid; place-items: center; padding: 16px;
  background: color-mix(in srgb, var(--bg) 55%, transparent); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  animation: fade-in .25s ease;
}
.welcome { max-width: 440px; width: 100%; margin: 0; text-align: center; background: var(--card-solid); animation: pop-in .45s cubic-bezier(.2, 1.4, .4, 1); }
.welcome-bot { display: grid; place-items: center; margin: -4px 0 6px; }
.welcome-bot .bot-svg { animation: bob 2.4s ease-in-out infinite; filter: drop-shadow(0 10px 20px rgba(236, 72, 153, .35)); }
.welcome h2 { font-size: 1.45rem; }
.welcome-steps { text-align: left; margin: 12px auto; padding: 0; list-style: none; max-width: 340px; }
.welcome-steps li { display: flex; gap: 10px; padding: 9px 12px; margin: 6px 0; border-radius: 14px; background: var(--bg-2); border: 1px solid var(--border); font-weight: 600; font-size: .93rem; }
.welcome-actions { display: flex; flex-direction: column; gap: 8px; margin-top: 14px; }
@keyframes fade-in { from { opacity: 0; } }
@keyframes pop-in { from { opacity: 0; transform: translateY(20px) scale(.92); } }
@keyframes bob { 50% { transform: translateY(-6px) rotate(-3deg); } }
@keyframes blink { 0%, 92%, 100% { transform: scaleY(1); } 95% { transform: scaleY(.1); } }
.bot-eyes { transform-origin: 32px 31px; animation: blink 4s infinite; }
.bot-bulb { animation: blink 2s infinite; }

.bot { position: fixed; right: 20px; bottom: 20px; z-index: 40; }
.bot-fab { list-style: none; display: flex; align-items: center; gap: 10px; cursor: pointer; }
.bot-fab::-webkit-details-marker { display: none; }
.bot-avatar { position: relative; display: grid; place-items: center; width: 64px; height: 64px; border-radius: 22px; background: var(--card-solid); border: 1px solid var(--border); box-shadow: 0 12px 30px rgba(0, 0, 0, .25); transition: transform .2s; }
.bot-fab:hover .bot-avatar { transform: translateY(-3px) rotate(-4deg); }
.bot-avatar .bot-svg { animation: bob 2.6s ease-in-out infinite; }
.bot-count { position: absolute; top: -6px; right: -6px; min-width: 26px; padding: 2px 6px; border-radius: 999px; background: var(--grad); color: #fff; font: 700 .72rem var(--font); text-align: center; box-shadow: 0 4px 10px rgba(236, 72, 153, .4); }
.bot-bubble { max-width: 220px; padding: 8px 12px; border-radius: 16px 16px 4px 16px; background: var(--card-solid); color: var(--text); border: 1px solid var(--border); box-shadow: var(--shadow); font-size: .82rem; font-weight: 600; animation: pop-in .4s ease, bubble-out .5s ease 8s forwards; }
@keyframes bubble-out { to { opacity: 0; transform: translateY(6px); visibility: hidden; } }
.bot[open] .bot-bubble { display: none; }
.bot-panel { position: absolute; right: 0; bottom: 80px; width: min(340px, calc(100vw - 32px)); margin: 0; background: var(--card-solid); animation: pop-in .3s ease; }
.bot-steps { list-style: none; margin: 10px 0 6px; padding: 0; }
.bot-step { display: flex; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--border); font-size: .9rem; }
.bot-step:last-child { border-bottom: 0; }
.bot-step.done b { text-decoration: line-through; color: var(--muted); }
.bot-check { font-size: 1.1rem; }
.bot-home-actions { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.bot-skip { text-align: right; }
.bot-skip .link { font-size: .8rem; color: var(--muted); }
@media (max-width: 640px) {
  .bot { right: 12px; bottom: 96px; }
  .bot-avatar { width: 54px; height: 54px; border-radius: 18px; }
  .bot-bubble { max-width: 170px; font-size: .76rem; }
  .bot-panel { bottom: 68px; right: -4px; }
}

/* in-place navigation */
.nav-progress { position: fixed; top: 0; left: 0; z-index: 100; width: 0; height: 3px; background: var(--grad); box-shadow: 0 0 10px rgba(236, 72, 153, .6); pointer-events: none; }

/* official timetable changes (cancelled / rescheduled) */
.change-chip { background: var(--warn-bg); color: var(--warn); }
.session-chip { font-variant-numeric: tabular-nums; }
.change-note { margin-top: 3px; color: var(--warn); font-weight: 600; }
.cancelled-list { margin-bottom: 10px; }
.class-row.is-cancelled { grid-template-columns: 58px 1fr; opacity: .75; background: transparent; border-style: dashed; }
.class-row.is-cancelled::before { background: var(--muted); }
.struck { text-decoration: line-through; color: var(--muted); font-family: var(--font-display); font-size: 1.05rem; }
.tt-cancelled { opacity: .6; border-left-color: var(--muted); border-left-style: dashed; }
.tt-class .change-chip { font-size: .66rem; padding: 1px 6px; margin-left: 4px; }
main.page-in { animation: page-in .22s ease-out; }
@keyframes page-in { from { opacity: 0; transform: translateY(8px); } }