/* TOLK design system. Tokens on :root, dark theme via [data-theme="dark"] (set from Telegram or the OS). */
:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-2: #f0f3f9;
  --surface-3: #e6ebf4;
  --text: #0f172a;
  --muted: #5b6478;
  --faint: #8a93a6;
  --border: #e2e7f0;
  --primary: #2b59f0;
  --primary-hover: #1f47d1;
  --primary-soft: #e8eeff;
  --primary-ink: #ffffff;
  --accent: #ff6b00;
  --accent-soft: #fff1e6;
  --success: #12a150;
  --success-soft: #e6f6ed;
  --danger: #dc3c43;
  --danger-soft: #fdecec;
  --warning: #c27c00;
  --warning-soft: #fff6e0;
  --star: #f5b301;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06);
  --shadow: 0 4px 20px rgba(15, 23, 42, .07);
  --shadow-lg: 0 18px 50px rgba(15, 23, 42, .18);
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 20px;
  --appbar-h: 60px;
  --tabbar-h: 62px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #0d1117;
  --surface: #161b23;
  --surface-2: #1d2430;
  --surface-3: #262f3d;
  --text: #e8ecf3;
  --muted: #a0a9ba;
  --faint: #6f7a8e;
  --border: #2a3342;
  --primary: #5b82ff;
  --primary-hover: #7395ff;
  --primary-soft: #1c2950;
  --accent: #ff8a33;
  --accent-soft: #3a2414;
  --success: #3ccf7a;
  --success-soft: #113222;
  --danger: #ff6b70;
  --danger-soft: #3b1719;
  --warning: #f0b43c;
  --warning-soft: #3a2c0f;
  --shadow-sm: none;
  --shadow: 0 4px 20px rgba(0, 0, 0, .35);
  --shadow-lg: 0 18px 50px rgba(0, 0, 0, .55);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
h1, h2, h3, h4 { margin: 0; line-height: 1.25; letter-spacing: -.01em; }
h1 { font-size: clamp(26px, 5vw, 40px); font-weight: 800; letter-spacing: -.02em; }
h2 { font-size: 22px; font-weight: 750; }
h3 { font-size: 17px; font-weight: 700; }
h4 { font-size: 15px; font-weight: 650; }
p { margin: 0; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
button { font: inherit; color: inherit; }
[hidden] { display: none !important; }
svg[aria-hidden="true"] { width: 18px; height: 18px; flex: none; vertical-align: -3px; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.muted { color: var(--muted); }
.faint { color: var(--faint); }
.small { font-size: 13px; }
.tiny { font-size: 12px; }
.bold { font-weight: 700; }
.nowrap { white-space: nowrap; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.center { text-align: center; }
.row { display: flex; align-items: center; gap: 10px; }
.row-wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.stack-lg { display: flex; flex-direction: column; gap: 24px; }
.grow { flex: 1; min-width: 0; }
.mt { margin-top: 12px; }
.mt-lg { margin-top: 24px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* ---------- layout ---------- */
.container { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 16px; }
.appbar {
  position: sticky; top: 0; z-index: 30;
  height: var(--appbar-h);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: saturate(1.6) blur(12px);
  border-bottom: 1px solid var(--border);
}
.appbar .container { height: 100%; display: flex; align-items: center; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 800; font-size: 19px; letter-spacing: -.02em; }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--primary), #6d4cff); color: #fff; font-size: 17px; font-weight: 800;
  position: relative;
}
.brand-mark::after {
  content: ""; position: absolute; right: -2px; top: -2px; width: 10px; height: 10px; border-radius: 50%;
  background: var(--accent); border: 2px solid var(--surface);
}
.brand small { display: block; font-size: 10.5px; font-weight: 600; color: var(--faint); letter-spacing: .02em; margin-top: -3px; }
.nav { display: none; gap: 4px; margin-left: 12px; }
.nav a {
  padding: 8px 12px; border-radius: 10px; color: var(--muted); font-weight: 600; font-size: 14px;
}
.nav a:hover { background: var(--surface-2); color: var(--text); text-decoration: none; }
.nav a.active { color: var(--primary); background: var(--primary-soft); }
.appbar-end { margin-left: auto; display: flex; align-items: center; gap: 8px; }

main#view { padding: 20px 0 calc(var(--tabbar-h) + var(--safe-bottom) + 28px); min-height: calc(100vh - var(--appbar-h)); }
body.no-tabbar main#view { padding-bottom: 40px; }

.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
  display: flex; justify-content: space-around;
  height: calc(var(--tabbar-h) + var(--safe-bottom)); padding-bottom: var(--safe-bottom);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  backdrop-filter: saturate(1.6) blur(12px);
  border-top: 1px solid var(--border);
}
.tabbar a {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
  color: var(--faint); font-size: 11px; font-weight: 600;
}
.tabbar a:hover { text-decoration: none; }
.tabbar a svg { width: 23px; height: 23px; }
.tabbar a.active { color: var(--primary); }

@media (min-width: 860px) {
  .nav { display: flex; }
  .tabbar { display: none; }
  main#view { padding-bottom: 48px; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 42px; padding: 0 18px; border-radius: 12px; border: 1px solid transparent;
  font-weight: 650; font-size: 14.5px; cursor: pointer; white-space: nowrap;
  transition: background .15s, border-color .15s, color .15s, transform .05s;
  text-decoration: none !important; user-select: none;
}
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }
.btn svg { width: 18px; height: 18px; flex: none; }
.btn-primary { background: var(--primary); color: var(--primary-ink); }
.btn-primary:hover:not([disabled]) { background: var(--primary-hover); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover:not([disabled]) { filter: brightness(.95); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-outline { background: var(--surface); border-color: var(--border); color: var(--text); }
.btn-outline:hover:not([disabled]) { background: var(--surface-2); }
.btn-ghost { background: transparent; color: var(--muted); }
.btn-ghost:hover:not([disabled]) { background: var(--surface-2); color: var(--text); }
.btn-soft { background: var(--primary-soft); color: var(--primary); }
.btn-soft:hover:not([disabled]) { filter: brightness(.97); }
.btn-danger-soft { background: var(--danger-soft); color: var(--danger); }
.btn-sm { min-height: 34px; padding: 0 12px; font-size: 13.5px; border-radius: 10px; }
.btn-lg { min-height: 50px; padding: 0 24px; font-size: 16px; border-radius: 14px; }
.btn-block { width: 100%; }
.btn-icon { width: 40px; min-height: 40px; padding: 0; border-radius: 12px; }
.btn .spinner { width: 16px; height: 16px; border-width: 2px; }

/* ---------- cards & surfaces ---------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-sm); }
.card-pad { padding: 18px; }
.card-head { padding: 16px 18px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.card-body { padding: 18px; }
.section-title { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.section-title h2 { font-size: 19px; }
.divider { height: 1px; background: var(--border); margin: 14px 0; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 330px), 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); }
.grid-stats { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 12px; }

/* ---------- badges, chips ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 4px; height: 24px; padding: 0 9px; border-radius: 999px;
  font-size: 12px; font-weight: 650; background: var(--surface-2); color: var(--muted); white-space: nowrap;
}
.badge-primary { background: var(--primary-soft); color: var(--primary); }
.badge-success { background: var(--success-soft); color: var(--success); }
.badge-danger { background: var(--danger-soft); color: var(--danger); }
.badge-warning { background: var(--warning-soft); color: var(--warning); }
.badge-accent { background: var(--accent-soft); color: var(--accent); }
.count-dot {
  min-width: 20px; height: 20px; padding: 0 6px; border-radius: 999px; background: var(--accent); color: #fff;
  font-size: 11.5px; font-weight: 700; display: inline-grid; place-items: center;
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; height: 34px; padding: 0 13px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border); color: var(--text); font-size: 13.5px; font-weight: 600;
  cursor: pointer; transition: all .15s;
}
.chip:hover { border-color: var(--primary); }
.chip.active { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); }
.chip .n { font-size: 11.5px; opacity: .65; }

.seg { display: inline-flex; padding: 4px; gap: 2px; background: var(--surface-2); border-radius: 12px; }
.seg button {
  border: 0; background: transparent; padding: 7px 14px; border-radius: 9px; cursor: pointer;
  font-weight: 650; font-size: 13.5px; color: var(--muted);
}
.seg button.active { background: var(--surface); color: var(--text); box-shadow: var(--shadow-sm); }
.seg.block { display: flex; }
.seg.block button { flex: 1; }

.tabs { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; border-bottom: 1px solid var(--border); margin-bottom: 18px; }
.tabs::-webkit-scrollbar { display: none; }
.tabs a {
  padding: 10px 14px; color: var(--muted); font-weight: 650; font-size: 14px; white-space: nowrap;
  border-bottom: 2px solid transparent; margin-bottom: -1px; display: inline-flex; align-items: center; gap: 6px;
}
.tabs a:hover { color: var(--text); text-decoration: none; }
.tabs a.active { color: var(--primary); border-color: var(--primary); }

/* ---------- forms ---------- */
.field { display: flex; flex-direction: column; gap: 6px; }
.field > span, .label { font-size: 13px; font-weight: 650; color: var(--muted); }
.hint { font-size: 12px; color: var(--faint); }
.input, .select, .textarea {
  width: 100%; min-height: 44px; padding: 10px 13px; border-radius: 12px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text); font: inherit; font-size: 15px;
  transition: border-color .15s, box-shadow .15s;
}
.textarea { min-height: 96px; resize: vertical; }
.input:focus, .select:focus, .textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--faint) 50%), linear-gradient(135deg, var(--faint) 50%, transparent 50%); background-position: calc(100% - 18px) 19px, calc(100% - 13px) 19px; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 34px; }
.form-grid { display: grid; gap: 14px; grid-template-columns: 1fr 1fr; }
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 560px) { .form-grid { grid-template-columns: 1fr; } }
.search {
  position: relative; display: flex; align-items: center;
}
.search svg { position: absolute; left: 14px; width: 19px; height: 19px; color: var(--faint); pointer-events: none; }
.search .input { padding-left: 42px; min-height: 50px; border-radius: 14px; font-size: 15.5px; }
.check { display: flex; align-items: center; gap: 10px; cursor: pointer; font-size: 14px; font-weight: 550; }
.check input { width: 18px; height: 18px; accent-color: var(--primary); }

.file-drop {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; text-align: center;
  min-height: 130px; padding: 16px; border: 2px dashed var(--border); border-radius: var(--radius); cursor: pointer;
  color: var(--muted); background: var(--surface-2); transition: border-color .15s;
}
.file-drop:hover { border-color: var(--primary); }
.file-drop img { max-height: 180px; border-radius: 10px; }
.file-drop input { display: none; }

/* dual range slider */
.range { position: relative; height: 34px; }
.range .track { position: absolute; left: 0; right: 0; top: 15px; height: 4px; border-radius: 4px; background: var(--surface-3); }
.range .fill { position: absolute; top: 15px; height: 4px; border-radius: 4px; background: var(--primary); }
.range input[type=range] {
  position: absolute; left: 0; top: 0; width: 100%; height: 34px; margin: 0; background: none;
  pointer-events: none; -webkit-appearance: none; appearance: none;
}
.range input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; pointer-events: auto; width: 22px; height: 22px; border-radius: 50%;
  background: var(--surface); border: 2px solid var(--primary); box-shadow: var(--shadow); cursor: grab;
}
.range input[type=range]::-moz-range-thumb {
  pointer-events: auto; width: 18px; height: 18px; border-radius: 50%;
  background: var(--surface); border: 2px solid var(--primary); cursor: grab;
}
.range input[type=range]::-moz-range-track { background: none; }
.price-inputs { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 8px; }
.price-inputs .input { min-height: 38px; padding: 6px 10px; font-size: 14px; }

/* ---------- avatars, stars ---------- */
.avatar {
  --size: 40px; width: var(--size); height: var(--size); border-radius: 50%; flex: none; overflow: hidden;
  display: grid; place-items: center; color: #fff; font-weight: 700; font-size: calc(var(--size) * .38);
  background: hsl(var(--h, 220) 60% 52%);
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.avatar-sm { --size: 30px; }
.avatar-lg { --size: 72px; }

.stars { position: relative; display: inline-block; font-size: 14px; line-height: 1; letter-spacing: 1px; color: var(--surface-3); }
.stars::before { content: "★★★★★"; }
.stars::after {
  content: "★★★★★"; position: absolute; left: 0; top: 0; color: var(--star); overflow: hidden; white-space: nowrap;
  width: calc(var(--v, 0) / 5 * 100%);
}
.rating { display: inline-flex; align-items: center; gap: 5px; font-size: 13.5px; font-weight: 700; }
.rating .n { color: var(--faint); font-weight: 550; }
.star-pick { display: inline-flex; gap: 4px; }
.star-pick button {
  border: 0; background: none; padding: 2px; cursor: pointer; font-size: 30px; line-height: 1; color: var(--surface-3);
  transition: transform .1s, color .1s;
}
.star-pick button.on { color: var(--star); }
.star-pick button:hover { transform: scale(1.12); }
.bars { display: flex; flex-direction: column; gap: 6px; }
.bar-row { display: grid; grid-template-columns: 28px 1fr 30px; align-items: center; gap: 8px; font-size: 12.5px; color: var(--muted); }
.bar { height: 7px; border-radius: 4px; background: var(--surface-2); overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--star); border-radius: 4px; }

/* ---------- hero & catalog ---------- */
.hero {
  position: relative; overflow: hidden; border-radius: var(--radius-lg); padding: 28px 22px;
  background:
    radial-gradient(1200px 300px at 110% -20%, color-mix(in srgb, var(--accent) 30%, transparent), transparent 60%),
    linear-gradient(135deg, #1f3fd1 0%, #3f5cf4 50%, #6d4cff 100%);
  color: #fff; margin-bottom: 22px;
}
.hero h1 { color: #fff; max-width: 640px; }
.hero p { color: rgba(255, 255, 255, .86); margin-top: 10px; max-width: 560px; font-size: 15.5px; }
.hero .search { margin-top: 20px; max-width: 560px; }
.hero .search .input { border: 0; box-shadow: var(--shadow-lg); }
.hero-points { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 18px; font-size: 13.5px; color: rgba(255, 255, 255, .9); font-weight: 600; }
.hero-points span::before { content: "✓ "; color: #ffd2a8; }
@media (min-width: 720px) { .hero { padding: 44px 40px; } }

.explore { display: grid; gap: 22px; }
.filters-panel { display: none; }
@media (min-width: 960px) {
  .explore { grid-template-columns: 270px 1fr; align-items: start; }
  .filters-panel { display: block; position: sticky; top: calc(var(--appbar-h) + 16px); }
  .filters-toggle { display: none !important; }
}
.filter-group { padding: 16px 0; border-bottom: 1px solid var(--border); }
.filter-group:first-child { padding-top: 0; }
.filter-group:last-child { border-bottom: 0; padding-bottom: 0; }
.filter-group h4 { margin-bottom: 10px; font-size: 13px; text-transform: uppercase; letter-spacing: .05em; color: var(--faint); }
.rating-opts { display: flex; flex-direction: column; gap: 4px; }
.rating-opts label { display: flex; align-items: center; gap: 10px; padding: 7px 8px; border-radius: 10px; cursor: pointer; font-size: 14px; font-weight: 550; }
.rating-opts label:hover { background: var(--surface-2); }
.rating-opts input { accent-color: var(--primary); width: 17px; height: 17px; }

/* Phones: [Filters] [Sort] side by side, full width, then "N classes" underneath (never overlapping). */
.results-bar { display: flex; flex-direction: column; gap: 10px; margin-bottom: 14px; }
.results-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.results-controls .btn, .results-controls .select { width: 100%; min-height: 42px; }
.results-controls .select { padding-top: 6px; padding-bottom: 6px; font-size: 14px; background-position: calc(100% - 18px) 18px, calc(100% - 13px) 18px; }
.results-count { font-size: 15px; font-weight: 650; color: var(--muted); text-align: center; }
/* Desktop: filters live in the sidebar; count on the left, sort on the right. */
@media (min-width: 960px) {
  .results-bar { flex-direction: row; align-items: center; justify-content: space-between; }
  .results-bar .results-count { order: -1; font-size: 18px; font-weight: 750; color: var(--text); text-align: left; }
  .results-controls { display: flex; }
  .results-controls .select { width: auto; min-height: 38px; background-position: calc(100% - 18px) 16px, calc(100% - 13px) 16px; }
}

.class-card { display: flex; flex-direction: column; overflow: hidden; transition: transform .15s, box-shadow .15s; color: var(--text); }
.class-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); text-decoration: none; }
.cover {
  position: relative; height: 128px; overflow: hidden; padding: 14px 16px; display: flex; align-items: flex-end; justify-content: space-between;
  background: linear-gradient(135deg, hsl(var(--h) 75% 55%), hsl(calc(var(--h) + 35) 75% 45%));
  color: #fff;
}
.code-mark, .emoji-mark { flex: none; display: inline-grid; place-items: center; font-weight: 800; letter-spacing: .02em; line-height: 1; }
.code-mark { width: 40px; height: 40px; border-radius: 11px; font-size: 14px; background: var(--primary-soft); color: var(--primary); }
.emoji-mark { width: 40px; height: 40px; font-size: 28px; }
.code-mark.lg, .emoji-mark.lg { width: 54px; height: 54px; font-size: 19px; }
.emoji-mark.lg { font-size: 40px; }
.code-mark.xl, .emoji-mark.xl { width: 72px; height: 72px; font-size: 25px; border-radius: 18px; }
.emoji-mark.xl { font-size: 56px; }
.cover .code-mark { background: rgba(255, 255, 255, .95); color: hsl(var(--h) 65% 38%); box-shadow: 0 4px 14px rgba(0, 0, 0, .15); }
.cover .emoji-mark { filter: drop-shadow(0 2px 6px rgba(0, 0, 0, .2)); }
.cover .subject { font-weight: 750; font-size: 13px; background: rgba(0, 0, 0, .22); padding: 4px 10px; border-radius: 999px; backdrop-filter: blur(4px); }
.cover .tag { position: absolute; top: 12px; right: 12px; z-index: 1; }
.cover > :not(.poster):not(.tag) { position: relative; z-index: 1; }
.cover.has-poster { background: #1f2937; }
.cover .poster { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
/* darken the bottom of the picture so the subject chip stays readable */
.cover.has-poster::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(0, 0, 0, .55), transparent 55%); }
.detail-cover.has-poster { height: auto; aspect-ratio: 16 / 9; max-height: 360px; }
.poster-thumb { width: 56px; height: 40px; border-radius: 9px; object-fit: cover; flex: none; }
.poster-drop img { max-height: 160px; border-radius: 10px; object-fit: cover; }
.class-card .body { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.class-card h3 { font-size: 16.5px; }
.code-badge { display: inline-flex; align-items: center; height: 22px; padding: 0 8px; border-radius: 6px; background: var(--surface-2); border: 1px solid var(--border); color: var(--muted); font: 700 11.5px/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; letter-spacing: .03em; white-space: nowrap; }
.class-card .meta { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 13px; color: var(--muted); }
.class-card .meta span { display: inline-flex; align-items: center; gap: 5px; }
.class-card .meta svg { width: 15px; height: 15px; color: var(--faint); }
.class-card .foot { margin-top: auto; display: flex; align-items: flex-end; justify-content: space-between; gap: 8px; padding-top: 12px; border-top: 1px solid var(--border); }
.price { font-weight: 800; font-size: 17px; letter-spacing: -.01em; }
.price small { font-weight: 550; font-size: 12.5px; color: var(--muted); letter-spacing: 0; }
.seats { font-size: 12.5px; font-weight: 650; }
.seats-dots { display: inline-flex; gap: 3px; margin-right: 6px; vertical-align: middle; }
.seats-dots i { width: 7px; height: 7px; border-radius: 50%; background: var(--surface-3); }
.seats-dots i.on { background: var(--success); }

/* ---------- detail pages ---------- */
.detail { display: grid; gap: 22px; }
@media (min-width: 960px) { .detail { grid-template-columns: 1fr 340px; align-items: start; } .detail .side { position: sticky; top: calc(var(--appbar-h) + 16px); } }
.detail-cover { border-radius: var(--radius-lg); height: 150px; }
.facts { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.fact { padding: 12px 14px; border-radius: 12px; background: var(--surface-2); }
.fact .k { font-size: 12px; color: var(--faint); font-weight: 650; }
.fact .v { font-weight: 700; font-size: 14.5px; margin-top: 2px; }
.prose { white-space: pre-line; color: var(--text); }
.review { padding: 14px 0; border-bottom: 1px solid var(--border); }
.review:last-child { border-bottom: 0; }
.sticky-cta {
  position: fixed; left: 0; right: 0; bottom: calc(var(--tabbar-h) + var(--safe-bottom)); z-index: 25; padding: 10px 16px;
  background: var(--surface); border-top: 1px solid var(--border); box-shadow: 0 -6px 20px rgba(15, 23, 42, .06);
}
body.no-tabbar .sticky-cta { bottom: 0; padding-bottom: calc(10px + var(--safe-bottom)); }
@media (min-width: 960px) { .sticky-cta { display: none; } }

/* ---------- dashboards ---------- */
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.page-head h1 { font-size: clamp(24px, 4vw, 30px); }
.page-head p { color: var(--muted); margin-top: 4px; }
.stat { padding: 16px; }
.stat .v { font-size: 24px; font-weight: 800; letter-spacing: -.02em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.stat .k { font-size: 12.5px; color: var(--muted); font-weight: 600; }
.lesson {
  display: flex; gap: 14px; align-items: center; padding: 14px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border);
}
.lesson.live { border-color: var(--success); box-shadow: 0 0 0 3px var(--success-soft); }
.datebox {
  width: 56px; flex: none; text-align: center; border-radius: 12px; padding: 6px 0; background: var(--primary-soft); color: var(--primary);
}
.datebox .d { font-size: 21px; font-weight: 800; line-height: 1.1; }
.datebox .m { font-size: 11px; font-weight: 700; text-transform: uppercase; }
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); display: inline-block; animation: pulse 1.4s infinite; }
@keyframes pulse { 50% { opacity: .35; } }
@media (max-width: 560px) {
  .lesson { flex-wrap: wrap; }
  .lesson .lesson-actions { width: 100%; }
  .lesson .lesson-actions .btn { flex: 1; }
}
.lesson-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.strikes { display: inline-flex; gap: 4px; }
.strikes i { width: 10px; height: 10px; border-radius: 50%; background: var(--surface-3); }
.strikes i.on { background: var(--warning); }
.strikes.full i.on { background: var(--danger); }
.notice { display: flex; gap: 12px; padding: 14px 16px; border-radius: var(--radius); font-size: 14px; }
.notice > .ico { font-size: 20px; line-height: 1.2; }
.notice-info { background: var(--primary-soft); color: var(--text); }
.notice-warning { background: var(--warning-soft); }
.notice-danger { background: var(--danger-soft); }
.notice-success { background: var(--success-soft); }
.list { display: flex; flex-direction: column; }
.list-item { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--border); }
.list-item:last-child { border-bottom: 0; }
.table-wrap { overflow-x: auto; }
.journal-row { display: grid; grid-template-columns: 1fr; gap: 10px; padding: 12px 0; border-bottom: 1px solid var(--border); }
@media (min-width: 560px) { .journal-row { grid-template-columns: 1fr auto auto; align-items: center; } }

.receipt-thumb {
  width: 64px; height: 64px; border-radius: 10px; border: 1px solid var(--border); object-fit: cover; flex: none;
  background: var(--surface-2); display: grid; place-items: center; font-size: 24px; cursor: zoom-in; overflow: hidden;
}

/* ---------- role choice / auth ---------- */
.auth-wrap { max-width: 460px; margin: 4vh auto 0; }
.role-cards { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; }
.role-card {
  padding: 18px 14px; border-radius: var(--radius); border: 2px solid var(--border); background: var(--surface);
  cursor: pointer; text-align: center; transition: border-color .15s, background .15s;
}
.role-card .emoji { font-size: 34px; }
.role-card h3 { margin-top: 8px; font-size: 15.5px; }
.role-card p { font-size: 12.5px; color: var(--muted); margin-top: 4px; }
.role-card.active { border-color: var(--primary); background: var(--primary-soft); }
.demo-user { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 12px; cursor: pointer; border: 1px solid var(--border); background: var(--surface); width: 100%; text-align: left; }
.demo-user:hover { border-color: var(--primary); }

/* ---------- empty / loading ---------- */
.empty { text-align: center; padding: 40px 20px; color: var(--muted); }
.empty .emoji { font-size: 44px; margin-bottom: 8px; }
.empty h3 { color: var(--text); margin-bottom: 6px; }
.spinner {
  width: 28px; height: 28px; border-radius: 50%; border: 3px solid var(--surface-3); border-top-color: var(--primary);
  animation: spin .8s linear infinite; display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading { display: grid; place-items: center; padding: 60px 0; }
.skeleton { background: linear-gradient(90deg, var(--surface-2), var(--surface-3), var(--surface-2)); background-size: 200% 100%; animation: shimmer 1.2s infinite; border-radius: var(--radius); }
@keyframes shimmer { to { background-position: -200% 0; } }

/* ---------- dropdown ---------- */
.dropdown { position: relative; }
.dropdown > summary { list-style: none; cursor: pointer; }
.dropdown > summary::-webkit-details-marker { display: none; }
.dropdown-menu {
  position: absolute; right: 0; top: calc(100% + 8px); min-width: 190px; z-index: 40; padding: 6px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px; box-shadow: var(--shadow-lg);
}
.dropdown-menu button, .dropdown-menu a {
  display: flex; width: 100%; align-items: center; gap: 10px; padding: 9px 12px; border: 0; background: none; cursor: pointer;
  border-radius: 9px; color: var(--text); font-size: 14px; font-weight: 550; text-align: left;
}
.dropdown-menu button:hover, .dropdown-menu a:hover { background: var(--surface-2); text-decoration: none; }
.dropdown-menu .active { color: var(--primary); font-weight: 700; }
.lang-btn { height: 36px; padding: 0 10px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface); display: inline-flex; align-items: center; gap: 6px; font-weight: 700; font-size: 13px; }

/* ---------- modal / sheet ---------- */
.overlay {
  position: fixed; inset: 0; z-index: 60; background: rgba(8, 12, 22, .5); display: flex; align-items: flex-end; justify-content: center;
  animation: fade .15s ease-out;
}
.sheet {
  width: 100%; max-height: 92vh; display: flex; flex-direction: column; background: var(--surface);
  border-radius: 22px 22px 0 0; box-shadow: var(--shadow-lg); animation: up .2s ease-out; padding-bottom: var(--safe-bottom);
}
.sheet-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 18px 12px; border-bottom: 1px solid var(--border); }
.sheet-head h3 { font-size: 17px; }
.sheet-body { padding: 18px; overflow-y: auto; }
.sheet-foot { padding: 12px 18px 16px; border-top: 1px solid var(--border); display: flex; gap: 10px; justify-content: flex-end; }
@media (min-width: 640px) {
  .overlay { align-items: center; padding: 24px; }
  .sheet { max-width: 560px; border-radius: 20px; padding-bottom: 0; }
  .sheet.wide { max-width: 760px; }
}
@keyframes fade { from { opacity: 0; } }
@keyframes up { from { transform: translateY(30px); opacity: .5; } }

/* ---------- toast ---------- */
#toasts { position: fixed; top: 12px; left: 50%; transform: translateX(-50%); z-index: 80; display: flex; flex-direction: column; gap: 8px; width: min(420px, calc(100% - 24px)); pointer-events: none; }
.toast {
  pointer-events: auto; padding: 12px 16px; border-radius: 14px; background: #111827; color: #fff; font-size: 14px; font-weight: 550;
  box-shadow: var(--shadow-lg); animation: up .2s ease-out; display: flex; gap: 10px; align-items: flex-start;
}
.toast.success { background: #0f7a3d; }
.toast.error { background: #b4232a; }
.toast.warning { background: #8a5a00; }

.copy-box { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 12px 14px; border-radius: 12px; background: var(--surface-2); }
.copy-box .mono { font-size: 17px; font-weight: 700; letter-spacing: .04em; }
.steps { counter-reset: s; display: flex; flex-direction: column; gap: 10px; }
.steps li { list-style: none; display: flex; gap: 10px; font-size: 14px; }
.steps li::before { counter-increment: s; content: counter(s); width: 24px; height: 24px; flex: none; border-radius: 50%; background: var(--primary-soft); color: var(--primary); font-weight: 750; font-size: 12.5px; display: grid; place-items: center; }
.steps { padding: 0; margin: 0; }
.cover .tag { background: rgba(255, 255, 255, .92); color: #111827; }