:root {
  color-scheme: dark;
  --bg-main: #020617;
  --bg-deep: #030712;
  --bg-panel: rgba(8, 16, 35, .84);
  --bg-panel-strong: rgba(5, 10, 24, .96);
  --bg-control: rgba(10, 24, 48, .82);
  --border-blue: rgba(56, 189, 248, .45);
  --border-blue-soft: rgba(56, 189, 248, .18);
  --border-gold: rgba(245, 158, 11, .65);
  --text-main: #e5f6ff;
  --text-muted: #7dd3fc;
  --text-dim: #58758d;
  --cyan: #22d3ee;
  --blue: #38bdf8;
  --purple: #8b5cf6;
  --green: #22c55e;
  --amber: #f59e0b;
  --red: #fb7185;
  --line: rgba(125, 211, 252, .16);
  --line-strong: rgba(125, 211, 252, .34);
  --shadow: 0 16px 45px rgba(0, 0, 0, .28), 0 0 25px rgba(14, 165, 233, .04);
  --glow-blue: 0 0 18px rgba(34, 211, 238, .14);
  --mono: "Inter", "DIN Alternate", "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
  --sans: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-height: 100vh;
  margin: 0;
  color: var(--text-main);
  background:
    linear-gradient(rgba(56, 189, 248, .018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, .018) 1px, transparent 1px),
    radial-gradient(circle at 75% -10%, rgba(14, 165, 233, .16), transparent 33rem),
    radial-gradient(circle at 0 55%, rgba(91, 33, 182, .08), transparent 30rem),
    var(--bg-main);
  background-size: 32px 32px, 32px 32px, auto, auto, auto;
  font-family: var(--sans);
}
body::before {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; content: "";
  opacity: .18;
  background: repeating-linear-gradient(0deg, transparent 0, transparent 3px, rgba(125, 211, 252, .025) 4px, transparent 5px);
}
button, input, select { font: inherit; }
button { cursor: pointer; }
button:focus-visible, select:focus-visible, input:focus-visible, .upload-box:focus-within { outline: 2px solid var(--cyan); outline-offset: 3px; }
.shell { width: min(1580px, calc(100% - 44px)); margin: 0 auto; padding: 22px 0 58px; }
.panel {
  position: relative; overflow: hidden; border: 1px solid var(--border-blue); border-radius: 16px;
  background: var(--bg-panel); box-shadow: var(--shadow); backdrop-filter: blur(10px);
}
.panel::before { position: absolute; top: 0; left: 18px; width: 52px; height: 1px; background: var(--cyan); box-shadow: 0 0 10px var(--cyan); content: ""; }
.hero { display: grid; grid-template-columns: minmax(0, 1fr) 470px; gap: 34px; min-height: 278px; padding: 38px 42px; border-color: var(--border-blue); background: linear-gradient(112deg, rgba(5, 14, 31, .98), rgba(8, 20, 43, .76) 60%, rgba(15, 23, 52, .9)); }
.hero::after { position: absolute; right: -100px; top: -175px; width: 470px; height: 470px; border: 1px solid rgba(34, 211, 238, .2); border-radius: 50%; box-shadow: 0 0 0 35px rgba(34, 211, 238, .035), 0 0 0 85px rgba(139, 92, 246, .035), 0 0 70px rgba(34, 211, 238, .12); content: ""; }
.hero-intro, .hero-link { position: relative; z-index: 1; }
.hero-intro { max-width: 780px; }
.eyebrow { display: flex; align-items: center; gap: 9px; margin: 0 0 15px; color: var(--cyan); font-family: var(--mono); font-size: 10px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.eyebrow-mark, .status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(34, 197, 94, .13), 0 0 12px var(--green); }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 15px; color: var(--text-main); font-size: clamp(36px, 4.5vw, 64px); font-weight: 850; letter-spacing: .025em; line-height: 1.08; text-shadow: 0 0 28px rgba(56, 189, 248, .16); }
h1 em { color: var(--cyan); font-style: normal; }
.hero-copy { max-width: 680px; margin-bottom: 19px; color: var(--text-muted); font-size: 14px; line-height: 1.85; }
.hero-status { display: inline-flex; align-items: center; gap: 9px; padding: 8px 12px; border: 1px solid rgba(34, 197, 94, .42); border-radius: 5px; color: #86efac; background: rgba(20, 83, 45, .16); font-family: var(--mono); font-size: 11px; font-weight: 800; }
.hero-link { display: grid; grid-template-columns: 94px minmax(130px, 1fr) 94px; align-items: center; min-height: 150px; margin-top: 10px; }
.link-node { display: grid; place-items: center; gap: 8px; text-align: center; }
.link-node span { display: grid; place-items: center; width: 58px; height: 58px; border: 1px solid var(--blue); border-radius: 12px; color: var(--cyan); background: rgba(8, 47, 73, .55); font-family: var(--mono); font-size: 14px; font-weight: 850; box-shadow: 0 0 18px rgba(34, 211, 238, .15); }
.link-node strong { color: var(--text-main); font-size: 11px; }
.link-node.receiver span { border-color: var(--green); color: #86efac; background: rgba(20, 83, 45, .28); box-shadow: 0 0 18px rgba(34, 197, 94, .13); }
.link-channel { position: relative; display: flex; align-items: center; gap: 7px; height: 2px; margin: 0 13px; background: linear-gradient(90deg, var(--cyan), var(--purple), var(--green)); box-shadow: 0 0 12px rgba(34, 211, 238, .75); }
.link-channel::after { position: absolute; inset: -5px 0; background: linear-gradient(90deg, transparent, rgba(255,255,255,.65), transparent); animation: signal-flow 2.2s linear infinite; content: ""; }
.link-channel i { z-index: 1; width: 7px; height: 7px; border-radius: 50%; background: var(--bg-deep); box-shadow: 0 0 0 2px var(--cyan), 0 0 9px var(--cyan); }
.link-channel i:nth-child(2) { margin-left: auto; }.link-channel i:nth-child(3) { margin-left: 4px; }
.link-channel small { position: absolute; top: 15px; left: 50%; color: var(--text-dim); font-family: var(--mono); font-size: 9px; letter-spacing: .08em; transform: translateX(-50%); white-space: nowrap; }
.link-eavesdrop { position: absolute; right: 2px; bottom: 0; display: flex; align-items: center; gap: 6px; color: var(--red); }.link-eavesdrop span { display: grid; place-items: center; width: 23px; height: 23px; border: 1px solid var(--red); border-radius: 4px; background: rgba(127, 29, 29, .25); font-family: var(--mono); font-weight: 850; }.link-eavesdrop small { font-size: 10px; }
.app-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 14px 0; }
.app-nav-item { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 13px; min-height: 72px; padding: 12px 16px; border: 1px solid var(--border-blue-soft); border-radius: 10px; color: var(--text-dim); text-align: left; background: rgba(5, 14, 31, .72); transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease; }
.app-nav-item:hover { border-color: var(--border-blue); transform: translateY(-1px); }.app-nav-item.active { border-color: var(--cyan); background: rgba(8, 47, 73, .38); box-shadow: inset 3px 0 var(--cyan), var(--glow-blue); }
.mode-icon { display: grid; place-items: center; width: 43px; height: 43px; border: 1px solid var(--border-blue); border-radius: 6px; color: var(--blue); background: rgba(14, 116, 144, .16); font-family: var(--mono); font-size: 10px; font-weight: 850; letter-spacing: .05em; }.app-nav-item:nth-child(2) .mode-icon { color: #c4b5fd; border-color: rgba(139,92,246,.45); background: rgba(76,29,149,.2); }.app-nav-item.active .mode-icon { color: var(--bg-deep); background: var(--cyan); }.app-nav-item.active:nth-child(2) .mode-icon { color: var(--text-main); background: var(--purple); }
.mode-copy strong, .mode-copy small { display: block; }.mode-copy strong { color: var(--text-main); font-size: 14px; letter-spacing: .03em; }.mode-copy small { margin-top: 5px; color: var(--text-dim); font-size: 11px; }.mode-arrow { color: var(--text-dim); font-family: var(--mono); font-size: 20px; }.app-nav-item.active .mode-arrow { color: var(--cyan); }.app-nav-item[aria-selected="false"] .mode-arrow { color: var(--purple); }.app-view[hidden] { display: none; }
.workspace { display: grid; grid-template-columns: 292px minmax(0, 1fr); gap: 14px; }.controls { align-self: start; position: sticky; top: 14px; padding: 20px; border-top: 2px solid var(--cyan); }.controls h2 { margin-bottom: 18px; font-size: 17px; letter-spacing: .08em; }.controls h2::before { color: var(--cyan); content: "// "; font-family: var(--mono); }
.upload-box { display: grid; place-items: center; min-height: 112px; margin-bottom: 17px; border: 1px dashed rgba(34,211,238,.55); border-radius: 7px; color: var(--cyan); background: repeating-linear-gradient(135deg, rgba(34,211,238,.045), rgba(34,211,238,.045) 2px, transparent 2px, transparent 8px); }.upload-box:hover { border-color: var(--cyan); background-color: rgba(8,47,73,.45); box-shadow: var(--glow-blue); }.upload-box input { display: none; }.upload-box span, .upload-box small { display: block; }.upload-box span { font-weight: 850; }.upload-box small { margin-top: 5px; color: var(--text-dim); font-family: var(--mono); font-size: 10px; }
.media-status { margin: -7px 0 16px; padding: 8px 9px; border-left: 2px solid var(--purple); color: var(--text-dim); background: rgba(76,29,149,.12); font-family: var(--mono); font-size: 9px; line-height: 1.5; }
.video-transmission-panel { border: 1px solid var(--line); border-radius: 6px; background: rgba(2,6,23,.48); }.video-transmission-panel[hidden], .image-transmission-panel[hidden] { display: none; }
.stream-status { margin: 0; padding: 10px 12px; border-bottom: 1px solid var(--line); border-left: 3px solid var(--cyan); color: var(--text-muted); background: rgba(8,47,73,.2); font-family: var(--mono); font-size: 10px; line-height: 1.55; }
.stream-outputs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 11px; padding: 11px; }
.stream-outputs figure { min-width: 0; }.stream-outputs figcaption { display: flex; align-items: center; gap: 7px; }.stream-marker { width: 7px; height: 7px; border-radius: 50%; }.stream-marker.source { background: var(--cyan); }.stream-marker.legitimate { background: var(--green); }.stream-marker.eavesdropper { background: var(--orange); }.stream-outputs video { display: block; width: 100%; aspect-ratio: 16 / 9; border: 1px solid rgba(56,189,248,.18); border-radius: 4px; background: #030b18; object-fit: contain; }
@media (max-width: 900px) { .stream-outputs { grid-template-columns: 1fr; } }
.field { margin-bottom: 16px; }.field label { display: block; margin-bottom: 8px; color: var(--text-muted); font-size: 12px; font-weight: 700; }.field-head { display: flex; justify-content: space-between; gap: 12px; }.field-head strong { color: var(--cyan); font-family: var(--mono); } select { width: 100%; height: 38px; padding: 0 10px; border: 1px solid var(--line-strong); border-radius: 5px; color: var(--text-main); background: var(--bg-control); } input[type="range"] { width: 100%; accent-color: var(--cyan); }
.primary-button, .secondary-button, .mini-button { border-radius: 5px; font-weight: 850; letter-spacing: .02em; transition: transform .16s ease, border-color .16s ease, background .16s ease, box-shadow .16s ease; }.primary-button { width: 100%; min-height: 45px; border: 1px solid var(--cyan); color: #03131e; background: var(--cyan); box-shadow: 0 0 16px rgba(34,211,238,.18); }.primary-button:hover:not(:disabled) { background: #67e8f9; transform: translateY(-1px); box-shadow: 0 0 22px rgba(34,211,238,.32); }.primary-button:disabled { cursor: not-allowed; color: var(--text-dim); border-color: var(--line); background: rgba(15,23,42,.75); box-shadow: none; }.secondary-button { width: 100%; min-height: 42px; margin-top: 9px; border: 1px solid var(--border-gold); color: var(--amber); background: rgba(120, 53, 15, .12); }.secondary-button:hover:not(:disabled), .mini-button:hover:not(:disabled) { border-color: var(--cyan); color: var(--text-main); background: rgba(8,47,73,.45); transform: translateY(-1px); }
.main-grid { display: grid; gap: 14px; min-width: 0; }.main-grid > .panel { min-width: 0; }.image-panel, .metrics-panel, .experiment-chart-panel, .timeline-panel, .user-panel, .compare-panel, .video-showcase-panel { padding: 20px; }.section-head { display: flex; align-items: end; justify-content: space-between; gap: 18px; margin-bottom: 15px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }.section-head h2 { margin-bottom: 3px; font-size: 17px; letter-spacing: .07em; }.section-head h2::before { margin-right: 7px; color: var(--cyan); font-family: var(--mono); content: ">"; }.section-head p { max-width: 720px; margin-bottom: 0; color: var(--text-dim); font-size: 11px; line-height: 1.65; }.section-tag { display: inline-flex; margin-right: 7px; padding: 3px 7px; border: 1px solid currentColor; border-radius: 3px; font-family: var(--mono); font-size: 9px; font-weight: 800; }.section-tag.visual { color: var(--amber); background: rgba(120,53,15,.14); }.section-tag.trajectory { color: var(--cyan); background: rgba(8,47,73,.25); }.section-tag.mixed { color: #c4b5fd; background: rgba(76,29,149,.16); }
.image-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 11px; } figure { margin: 0; padding: 9px; border: 1px solid var(--border-blue-soft); border-radius: 8px; background: rgba(2, 6, 23, .58); } figcaption { margin-bottom: 8px; color: var(--text-muted); font-family: var(--mono); font-size: 10px; font-weight: 800; } canvas { display: block; width: 100%; aspect-ratio: 1; border: 1px solid rgba(56,189,248,.18); border-radius: 4px; background: #030b18; }.overlay-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 12px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 6px; color: var(--text-dim); background: rgba(2,6,23,.45); font-size: 11px; }.overlay-controls > span { color: var(--text-main); font-weight: 800; }.overlay-controls label { display: inline-flex; align-items: center; gap: 5px; cursor: pointer; }.overlay-controls input { accent-color: var(--cyan); }.overlay-controls small { flex: 1 1 250px; }
.block-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 8px; margin-top: 10px; }.block-stats.empty, .timeline.empty, .slot-audit-grid.empty, .user-state-grid.empty { display: block; padding: 15px; color: var(--text-dim); border: 1px dashed var(--line-strong); border-radius: 6px; }.block-stat, .audit-item, .slot-card, .user-card { border: 1px solid var(--line); border-radius: 6px; background: rgba(10,24,48,.55); }.block-stat { padding: 10px; }.block-stat span, .block-stat small { display: block; color: var(--text-dim); font-size: 10px; }.block-stat strong { display: block; margin: 4px 0; color: var(--text-main); font-family: var(--mono); font-size: 17px; }.block-stat.legit strong { color: var(--green); }.block-stat.eve strong { color: var(--amber); }.block-stat.overlap strong { color: var(--red); }
.metrics-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }.metric-card { min-height: 100px; padding: 13px; border: 1px solid var(--line); border-radius: 6px; background: rgba(10,24,48,.55); }.metric-card span, .metric-card small { display: block; color: var(--text-dim); font-size: 10px; }.metric-card strong { display: block; margin: 12px 0 3px; color: var(--text-main); font-family: var(--mono); font-size: 27px; line-height: 1; text-shadow: 0 0 12px currentColor; }.metric-card.legit { border-left: 2px solid var(--green); }.metric-card.legit strong { color: var(--green); }.metric-card.eve { border-left: 2px solid var(--red); }.metric-card.eve strong { color: var(--red); }.metric-card.wide { grid-column: span 2; border-color: var(--border-gold); }
.chart-tabs, .video-category-tabs { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 11px; }.mini-button, .video-category-button { min-height: 35px; padding: 0 12px; border: 1px solid var(--line-strong); border-radius: 4px; color: var(--text-muted); background: rgba(5,14,31,.72); font-size: 11px; }.chart-tabs .mini-button.active, .video-category-button.active { color: #03131e; border-color: var(--cyan); background: var(--cyan); box-shadow: 0 0 13px rgba(34,211,238,.2); }.chart-card { margin-bottom: 12px; padding: 9px; border: 1px solid var(--line); border-radius: 6px; background: rgba(2,6,23,.62); } #curveCanvas, #experimentCurveCanvas { width: 100%; aspect-ratio: auto; } #curveCanvas { height: 260px; } #experimentCurveCanvas { height: 320px; }
.playback-strip { display: grid; grid-template-columns: repeat(5, auto) 120px repeat(3, minmax(100px, 1fr)); gap: 7px; align-items: stretch; margin-bottom: 15px; }.speed-control, .slot-readout { padding: 8px 9px; border: 1px solid var(--line); border-radius: 5px; background: rgba(10,24,48,.55); }.speed-control { display: grid; gap: 3px; }.speed-control span, .slot-readout span { color: var(--text-dim); font-size: 10px; }.speed-control select { height: 24px; padding: 0 5px; border-radius: 3px; font-size: 10px; }.slot-readout strong { color: var(--cyan); font-family: var(--mono); font-size: 12px; }.progress-row { display: grid; grid-template-columns: 100px minmax(0, 1fr) 56px; align-items: center; gap: 10px; margin-bottom: 10px; color: var(--text-dim); font-size: 11px; }.progress-row strong { color: var(--text-main); font-family: var(--mono); }.bar { height: 8px; overflow: hidden; border-radius: 2px; background: rgba(125,211,252,.1); }.bar i { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--green), var(--cyan)); transition: width .26s ease; box-shadow: 0 0 9px var(--cyan); }.eve-bar i { background: linear-gradient(90deg, var(--amber), var(--red)); box-shadow: 0 0 9px var(--amber); }.timeline { display: grid; grid-template-columns: repeat(auto-fill, minmax(132px, 1fr)); gap: 8px; margin-top: 15px; }.slot-card { padding: 10px; cursor: pointer; }.slot-card:hover { border-color: var(--border-blue); transform: translateY(-1px); }.slot-card.active { border-color: var(--cyan); background: rgba(8,47,73,.42); box-shadow: inset 3px 0 var(--cyan), 0 0 13px rgba(34,211,238,.1); }.slot-card strong { display: block; margin-bottom: 6px; color: var(--cyan); font-family: var(--mono); font-size: 12px; }.slot-card span { display: block; color: var(--text-dim); font-size: 10px; line-height: 1.55; }.slot-audit { margin-top: 17px; }.slot-audit-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(145px, 1fr)); gap: 8px; }.audit-item { padding: 10px; }.audit-item span, .audit-item small { display: block; color: var(--text-dim); font-size: 10px; }.audit-item strong { display: block; margin: 5px 0; color: var(--text-main); font-family: var(--mono); font-size: 12px; }
.user-state-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(145px, 1fr)); gap: 8px; }.user-card { padding: 10px; }.user-card.active { border-color: var(--cyan); box-shadow: inset 2px 0 var(--cyan); }.user-card.danger { border-color: rgba(251,113,133,.55); }.user-card-head { display: flex; justify-content: space-between; gap: 7px; margin-bottom: 10px; }.user-card-head strong { color: var(--text-main); font-family: var(--mono); font-size: 11px; }.user-card-head span { color: var(--cyan); font-size: 10px; }.mini-meter { margin-top: 8px; }.mini-meter label { display: flex; justify-content: space-between; color: var(--text-dim); font-size: 10px; }.mini-meter b { color: var(--text-muted); font-family: var(--mono); font-weight: 500; }.track { height: 5px; margin-top: 5px; overflow: hidden; background: rgba(125,211,252,.1); }.track i { display: block; height: 100%; background: var(--cyan); box-shadow: 0 0 7px var(--cyan); }.mini-meter.leak .track i { background: var(--amber); box-shadow: 0 0 7px var(--amber); }
.compare-controls { display: flex; flex-wrap: wrap; align-items: end; gap: 11px; margin-bottom: 11px; padding: 10px; border: 1px solid var(--line); border-radius: 6px; background: rgba(2,6,23,.45); }.compare-controls label { display: grid; gap: 5px; color: var(--text-muted); font-size: 11px; font-weight: 800; }.compare-controls select { min-width: 220px; height: 33px; }.compare-controls small { flex: 1 1 280px; color: var(--text-dim); font-size: 10px; line-height: 1.5; }.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 6px; } table { width: 100%; min-width: 840px; border-collapse: collapse; background: rgba(2,6,23,.55); } th, td { padding: 11px 12px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; } th { color: var(--text-muted); background: rgba(8,47,73,.35); font-family: var(--mono); font-size: 10px; } td { color: var(--text-dim); font-family: var(--mono), var(--sans); font-size: 10px; } tbody tr:hover td { background: rgba(8,47,73,.25); } tbody tr.best td { color: var(--text-main); background: rgba(120,53,15,.18); }.status-good { color: var(--green); font-weight: 850; }.status-bad { color: var(--red); font-weight: 850; }
.video-showcase-panel { min-height: 640px; }.video-showcase-panel > .section-head { align-items: center; }.video-showcase-panel > .section-head h2 { font-size: 23px; }.video-workspace { display: grid; grid-template-columns: 245px minmax(460px, 1.65fr) 255px; gap: 12px; align-items: start; }.video-library, .video-player-section, .video-detail-panel { overflow: hidden; border: 1px solid var(--line-strong); border-radius: 8px; background: rgba(2,6,23,.65); }.video-library-head, .video-detail-head { display: flex; justify-content: space-between; gap: 10px; padding: 12px 13px; border-bottom: 1px solid var(--line); }.video-library-head strong, .video-detail-head strong { color: var(--text-main); font-family: var(--mono); font-size: 11px; }.video-library-head span { color: var(--cyan); font-family: var(--mono); font-size: 10px; }.video-list { display: grid; gap: 6px; max-height: 540px; overflow-y: auto; padding: 8px; }.video-list.empty { display: block; padding: 15px; color: var(--text-dim); font-size: 11px; }.video-card { width: 100%; padding: 11px; border: 1px solid var(--line); border-radius: 5px; color: inherit; text-align: left; background: rgba(10,24,48,.52); }.video-card:hover { border-color: var(--border-blue); }.video-card.active { border-color: var(--purple); background: rgba(76,29,149,.2); box-shadow: inset 3px 0 var(--purple); }.video-card strong, .video-card span, .video-card small { display: block; }.video-card strong { color: var(--text-main); font-size: 11px; line-height: 1.45; }.video-card span { margin-top: 6px; color: #c4b5fd; font-size: 10px; font-weight: 800; }.video-card small { margin-top: 5px; color: var(--text-dim); font-size: 9px; line-height: 1.4; }.video-frame { position: relative; display: grid; place-items: center; min-height: 300px; background: #010611; } #showcaseVideo { display: block; width: 100%; max-height: 520px; aspect-ratio: 16 / 9; background: #010611; object-fit: contain; }.video-empty-state { position: absolute; inset: 0; display: grid; place-items: center; padding: 25px; color: var(--text-dim); text-align: center; background: repeating-linear-gradient(0deg, transparent 0, transparent 4px, rgba(34,211,238,.025) 5px); }.video-empty-state[hidden] { display: none !important; }.video-player-footer { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 13px; border-top: 1px solid var(--line); }.video-player-footer h3 { margin: 7px 0 4px; color: var(--text-main); font-size: 15px; }.video-player-footer p { margin-bottom: 0; color: var(--text-dim); font-size: 11px; }.video-playback-controls { display: flex; gap: 7px; }.video-info-grid { display: grid; gap: 7px; padding: 9px; }.video-info-grid.empty { display: block; padding: 15px; color: var(--text-dim); font-size: 11px; }.video-info-grid article { padding: 9px; border: 1px solid var(--line); border-radius: 5px; }.video-info-grid span, .video-info-grid strong { display: block; }.video-info-grid span { color: var(--text-dim); font-size: 10px; }.video-info-grid strong { margin-top: 5px; color: var(--text-muted); font-family: var(--mono); font-size: 10px; word-break: break-word; }.video-source-badge { color: var(--amber); font-family: var(--mono); font-size: 9px; }.video-conclusion-card { margin: 9px; padding: 11px; border: 1px solid var(--border-gold); border-radius: 5px; background: rgba(120,53,15,.12); }.video-conclusion-card span { color: var(--amber); font-family: var(--mono); font-size: 10px; }.video-conclusion-card p { margin: 7px 0 0; color: var(--text-muted); font-size: 11px; line-height: 1.6; }
@keyframes signal-flow { from { transform: translateX(-100%); } to { transform: translateX(100%); } }
@media (max-width: 1280px) { .playback-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }.speed-control, .slot-readout { min-width: 0; } }
@media (max-width: 1100px) { .hero { grid-template-columns: 1fr 340px; gap: 24px; }.workspace { grid-template-columns: 1fr; }.controls { position: static; }.metrics-grid { grid-template-columns: repeat(2, 1fr); }.video-workspace { grid-template-columns: minmax(220px, .7fr) minmax(400px, 1.3fr); }.video-detail-panel { grid-column: 1 / -1; } }
@media (max-width: 760px) { .shell { width: min(100% - 20px, 1580px); padding-top: 10px; }.hero { grid-template-columns: 1fr; gap: 7px; min-height: 0; padding: 27px 21px; }.hero-link { width: min(100%, 380px); margin-top: 5px; }.link-eavesdrop { right: 0; }.app-nav { grid-template-columns: 1fr; gap: 8px; }.app-nav-item { min-height: 70px; }.workspace { gap: 11px; }.controls { border-top: 0; border-left: 2px solid var(--cyan); }.image-panel, .metrics-panel, .experiment-chart-panel, .timeline-panel, .user-panel, .compare-panel, .video-showcase-panel { padding: 15px; }.image-grid, .metrics-grid { grid-template-columns: 1fr; }.metric-card.wide { grid-column: auto; }.section-head { align-items: start; flex-direction: column; }.playback-strip { grid-template-columns: 1fr; }.progress-row { grid-template-columns: 78px minmax(0, 1fr) 48px; }.video-workspace { grid-template-columns: 1fr; }.video-library { order: 2; }.video-player-section { order: 1; }.video-detail-panel { grid-column: auto; order: 3; }.video-list { max-height: 350px; }.video-frame { min-height: 190px; }.video-player-footer { align-items: stretch; flex-direction: column; }.video-playback-controls { width: 100%; }.video-playback-controls .mini-button { flex: 1; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; } }

/* Wide live-experiment dashboard */
@media (min-width: 1101px) {
  .shell { width: min(1920px, calc(100% - 48px)); }
  .dashboard-layout { display: grid; grid-template-columns: 280px minmax(0, 1fr) minmax(360px, 410px); gap: 14px; align-items: start; }
  .dashboard-center, .dashboard-right { display: grid; gap: 14px; min-width: 0; align-content: start; }
  .dashboard-layout > .controls { position: sticky; top: 14px; }
  .dashboard-center > .panel, .dashboard-right > .panel { min-width: 0; }
  .dashboard-center .image-panel { padding: 16px; }
  .dashboard-center .image-panel .section-head { margin-bottom: 10px; }
  .dashboard-center .image-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
  .dashboard-center .image-grid figure { padding: 7px; }
  .dashboard-center .image-grid canvas { width: min(100%, 190px); height: auto; margin: 0 auto; }
  .dashboard-center .overlay-controls { margin-top: 9px; padding: 8px 10px; }
  .dashboard-center .block-stats { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 6px; margin-top: 8px; }
  .dashboard-center .block-stat { padding: 8px; }
  .dashboard-center .block-stat strong { font-size: 14px; }
  .dashboard-center .experiment-chart-panel, .dashboard-center .user-panel, .dashboard-center .compare-panel { padding: 16px; }
  .dashboard-center .chart-card { padding: 6px; }
  .dashboard-center #experimentCurveCanvas { height: 270px; }
  .dashboard-center #curveCanvas { height: 220px; }
  .dashboard-center .user-state-grid { max-height: 300px; overflow-y: auto; padding-right: 3px; }
  .dashboard-right .metrics-panel, .dashboard-right .timeline-panel { padding: 14px; }
  .dashboard-right .section-head { gap: 10px; margin-bottom: 11px; padding-bottom: 9px; }
  .dashboard-right .section-head p { font-size: 10px; }
  .dashboard-right .metrics-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
  .dashboard-right .metric-card { min-height: 82px; padding: 10px; }
  .dashboard-right .metric-card strong { margin: 8px 0 2px; font-size: 22px; }
  .dashboard-right .metric-card.wide { grid-column: span 2; }
  .dashboard-right .timeline-panel { min-height: 0; overflow: hidden; }
  .dashboard-right .playback-strip { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 5px; margin-bottom: 10px; }
  .dashboard-right .playback-strip .mini-button { min-height: 31px; padding: 0 5px; font-size: 10px; }
  .dashboard-right .speed-control { grid-column: span 2; }
  .dashboard-right .slot-readout { min-width: 0; }
  .dashboard-right .progress-row { grid-template-columns: 74px minmax(0, 1fr) 43px; gap: 7px; margin-bottom: 7px; font-size: 10px; }
  .dashboard-right .timeline { min-height: 80px; max-height: 340px; margin-top: 10px; padding-right: 3px; overflow-y: auto; }
  .dashboard-right .slot-card { padding: 8px; }
  .dashboard-right .slot-card strong { margin-bottom: 4px; font-size: 11px; }
  .dashboard-right .slot-card span { font-size: 9px; }
  .dashboard-right .slot-audit { min-height: 0; margin-top: 12px; }
  .dashboard-right .slot-audit .section-head { align-items: start; }
  .dashboard-right .slot-audit-grid { max-height: 320px; overflow-y: auto; padding-right: 3px; }
  .dashboard-right .audit-item { padding: 8px; }
  .dashboard-right .audit-item span, .dashboard-right .audit-item small { font-size: 9px; }
  .dashboard-right .audit-item strong { margin: 4px 0; font-size: 10px; }
}

@media (max-width: 1100px) {
  .dashboard-layout { grid-template-columns: 1fr; }
  .dashboard-right { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 14px; }
}

@media (max-width: 760px) {
  .dashboard-right { grid-template-columns: 1fr; }
  .dashboard-center .image-grid { grid-template-columns: 1fr; }
  .dashboard-center .image-grid canvas { width: min(100%, 256px); }
  .dashboard-right .timeline-panel { max-height: none; }
  .dashboard-right .timeline { max-height: 300px; }
  .dashboard-right .slot-audit-grid { max-height: 260px; }
}