:root {
  color-scheme: dark;
  --bg: #07100f;
  --panel: #101a18;
  --soft: #172421;
  --line: #2b3a36;
  --ink: #f0f5f2;
  --muted: #91a39d;
  --accent: #50e3a4;
  --accent-dark: #123f31;
  --danger: #ff8d8d;
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; color: var(--ink); background: radial-gradient(circle at 15% 0, rgba(80,227,164,.13), transparent 35rem), var(--bg); }
button, input, select { font: inherit; }
.hidden { display: none !important; }
.skip-link { position: fixed; top: 10px; left: 10px; transform: translateY(-150%); z-index: 10; background: var(--panel); padding: 10px; }
.skip-link:focus { transform: none; }
.topbar { min-height: 72px; padding: 0 clamp(20px,5vw,70px); display: flex; align-items: center; gap: 28px; border-bottom: 1px solid var(--line); background: rgba(7,16,15,.9); position: sticky; top: 0; z-index: 5; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.brand span:last-child, .brand strong, .brand small { display: block; }
.brand small { color: var(--muted); }
.brand-mark { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; background: var(--accent); color: #062015; font-weight: 900; }
.nav { display: flex; gap: 4px; margin-right: auto; }
.nav-button, .entity-tab, .tab { border: 0; color: var(--muted); background: transparent; padding: 10px 13px; border-radius: 9px; cursor: pointer; }
.nav-button.active, .entity-tab.active, .tab.active { color: var(--ink); background: var(--soft); }
.session { display: flex; align-items: center; gap: 14px; color: var(--muted); font-size: .82rem; }
main { width: min(1500px,100%); margin: auto; }
.auth-layout { min-height: calc(100vh - 73px); display: grid; grid-template-columns: 1.2fr minmax(340px,.6fr); align-items: center; gap: 8vw; padding: clamp(30px,8vw,100px); }
h1 { font-size: clamp(2.3rem,5vw,4.8rem); line-height: 1; margin: .1em 0; letter-spacing: -.045em; }
.lead { max-width: 650px; color: var(--muted); font-size: 1.1rem; line-height: 1.7; }
.eyebrow { text-transform: uppercase; letter-spacing: .14em; color: var(--accent); font-size: .72rem; font-weight: 800; }
.feature-row { display: flex; gap: 9px; flex-wrap: wrap; }
.feature-row span, .stat-pill { padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: .78rem; }
.card { border: 1px solid var(--line); background: rgba(16,26,24,.94); border-radius: 20px; box-shadow: 0 30px 80px rgba(0,0,0,.2); }
.auth-card { padding: 28px; display: grid; gap: 18px; }
.tabs, .entity-tabs { display: flex; gap: 5px; background: #0a1311; border-radius: 11px; padding: 5px; }
label { display: grid; gap: 7px; color: #c9d4d0; font-size: .85rem; }
input, select { width: 100%; padding: 12px 13px; border: 1px solid var(--line); border-radius: 9px; background: #091311; color: var(--ink); }
button:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.button { border: 1px solid var(--line); border-radius: 9px; padding: 11px 15px; cursor: pointer; color: var(--ink); }
.primary { background: var(--accent); color: #062015; border-color: var(--accent); font-weight: 800; }
.secondary { background: transparent; }
.oauth-button { text-align: center; text-decoration: none; }
.button:disabled { opacity: .4; cursor: not-allowed; }
.message { color: var(--danger); min-height: 20px; }
.workspace { padding: 32px clamp(18px,4vw,60px); }
.page-heading { display: flex; justify-content: space-between; align-items: end; margin-bottom: 24px; }
.page-heading h1 { font-size: clamp(2rem,4vw,3.6rem); }
.muted { color: var(--muted); }
.filter-bar { display: grid; grid-template-columns: repeat(4,1fr) auto auto; gap: 12px; align-items: end; margin-bottom: 18px; }
.catalog-layout { display: grid; grid-template-columns: 390px 1fr; gap: 18px; }
.catalog-panel, .player-panel, .admin-card, .import-card { padding: 22px; }
.recording-list { display: grid; gap: 9px; min-height: 550px; }
.recording-button { padding: 14px; text-align: left; border: 1px solid var(--line); border-radius: 11px; background: #0a1311; color: var(--ink); cursor: pointer; }
.recording-button strong, .recording-button span, .recording-button small { display: block; }
.recording-button span, .recording-button small { margin-top: 5px; color: var(--muted); }
.recording-button small { font-size: .7rem; }
.recording-button:hover { border-color: var(--accent); }
.pagination { display: flex; align-items: center; justify-content: space-between; margin-top: 14px; }
.media-frame { display: block; width: 100%; aspect-ratio: 16/9; background: #000; border: 0; border-radius: 13px; margin-top: 18px; }
#youtube-player, #youtube-player iframe { width: 100%; height: 100%; border: 0; border-radius: 13px; }
.checkpoint { display: flex; justify-content: space-between; padding: 13px 3px; color: var(--muted); }
.rating-actions { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; }
.rating-actions span { color: var(--muted); margin-right: auto; }
.rating-actions .active { color: #062015; background: var(--accent); border-color: var(--accent); }
#recording-materials { display: flex; gap: 12px; flex-wrap: wrap; }
#recording-materials a { color: var(--accent); }
.history-panel { border-top: 1px solid var(--line); margin-top: 18px; padding-top: 12px; }
.history-panel .recording-list { min-height: 0; max-height: 260px; overflow: auto; }
.history-item { display: grid; gap: 3px; padding: 9px; border-left: 2px solid var(--accent); }
.history-item small { color: var(--muted); }
.preference-panel { border-top: 1px solid var(--line); margin-top: 18px; padding-top: 12px; display: grid; gap: 10px; }
.preference-panel label { display: flex; align-items: center; gap: 8px; }
.preference-panel input { width: auto; }
.metrics { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; margin-top: 14px; }
.metrics div { padding: 16px; background: #0a1311; border: 1px solid var(--line); border-radius: 11px; }
.metrics span, .metrics strong { display: block; }
.metrics span { color: var(--muted); font-size: .75rem; }
.metrics strong { margin-top: 8px; }
.admin-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 18px; }
.entity-tabs { overflow: auto; margin: 18px 0; }
.entity-tab { white-space: nowrap; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
form#entity-form { display: grid; gap: 13px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.form-actions { display: flex; gap: 9px; }
.entity-list { display: grid; gap: 7px; margin-top: 18px; max-height: 420px; overflow: auto; }
.entity-row { display: flex; justify-content: space-between; gap: 14px; padding: 12px; border: 1px solid var(--line); border-radius: 10px; }
.entity-row strong, .entity-row span { display: block; }
.entity-row span { color: var(--muted); font-size: .75rem; margin-top: 3px; }
.entity-row.inactive { opacity: .45; }
.icon-button { border: 0; background: transparent; color: var(--accent); cursor: pointer; }
.icon-button.delete { color: var(--danger); }
.import-card { display: flex; flex-direction: column; gap: 15px; }
.drop-zone { padding: 32px 20px; border: 1px dashed var(--accent); border-radius: 14px; text-align: center; cursor: pointer; background: var(--accent-dark); }
.drop-zone span, .drop-zone strong { display: block; }
.drop-zone span { color: var(--muted); margin-top: 7px; }
.drop-zone input { display: none; }
.import-card a { color: var(--accent); }
.import-result { padding: 14px; background: #0a1311; border-radius: 10px; min-height: 48px; }
.csv-downloads { display: grid; gap: 7px; margin: 14px 0; }
.import-card code { display: block; white-space: normal; color: var(--muted); margin-top: 10px; }
.empty { text-align: center; color: var(--muted); padding: 50px 10px; }
@media (max-width: 1050px) {
  .filter-bar { grid-template-columns: repeat(2,1fr); }
  .catalog-layout, .admin-grid { grid-template-columns: 1fr; }
  .recording-list { min-height: 0; }
  .auth-layout { grid-template-columns: 1fr; }
}
@media (max-width: 650px) {
  .topbar { flex-wrap: wrap; padding: 14px; }
  .session { width: 100%; justify-content: space-between; }
  .workspace { padding: 20px 12px; }
  .filter-bar, .metrics { grid-template-columns: 1fr; }
  .page-heading { align-items: start; gap: 10px; }
  .page-heading .stat-pill { display: none; }
}