:root {
  color-scheme: dark;
  --bg: #030407;
  --panel: rgba(15, 16, 22, .78);
  --panel-solid: #0f1016;
  --panel-2: rgba(255,255,255,.045);
  --panel-3: rgba(255,255,255,.075);
  --border: rgba(255,255,255,.09);
  --border-soft: rgba(255,255,255,.055);
  --text: #f7f8f8;
  --muted: #9ca3af;
  --subtle: #62666d;
  --line: rgba(255,255,255,.075);
  --accent: #7170ff;
  --accent-2: #7dd3fc;
  --accent-3: #c084fc;
  --ok: #10b981;
  --warn: #f59e0b;
  --danger: #fb7185;
  --shadow: 0 24px 80px rgba(0,0,0,.42);
  --radius: 22px;
  --radius-sm: 12px;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 18% 8%, rgba(113,112,255,.22), transparent 28vw),
    radial-gradient(circle at 76% 18%, rgba(125,211,252,.14), transparent 32vw),
    radial-gradient(circle at 50% 90%, rgba(192,132,252,.12), transparent 36vw),
    var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-feature-settings: "cv01", "ss03";
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }

#three-stage {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -3;
  opacity: .9;
}
.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: -2;
  opacity: .1;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 320 320' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.65'/%3E%3C/svg%3E");
}

#app-shell {
  display: grid;
  grid-template-columns: 292px minmax(0, 1fr);
  min-height: 100vh;
}
.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 22px 18px;
  border-right: 1px solid var(--border-soft);
  background: linear-gradient(180deg, rgba(7,8,12,.88), rgba(7,8,12,.62));
  backdrop-filter: blur(22px);
  overflow-y: auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 14px;
  background:
    linear-gradient(135deg, rgba(113,112,255,.95), rgba(125,211,252,.58)),
    rgba(255,255,255,.06);
  box-shadow: 0 16px 36px rgba(113,112,255,.26);
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
}
.brand strong { display: block; letter-spacing: -.02em; }
.brand small { display: block; margin-top: 2px; color: var(--muted); font-size: 12px; }
.primary-nav { display: grid; gap: 6px; }
.nav-link {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 12px;
  color: #d0d6e0;
  transition: .18s ease;
}
.nav-link:hover,
.nav-link.active {
  background: rgba(255,255,255,.055);
  border-color: var(--border);
  color: var(--text);
}
.nav-index {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border-soft);
  border-radius: 9px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent-2);
  background: rgba(255,255,255,.035);
}
.nav-title { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; font-size: 13px; font-weight: 510; }
.nav-status { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 4px rgba(16,185,129,.1); }
.sidebar-card {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255,255,255,.045);
}
.sidebar-card strong { display: block; margin: 6px 0; }
.sidebar-card small { color: var(--muted); line-height: 1.45; }

.main {
  min-width: 0;
  padding: 24px 28px 48px;
}
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 0 24px;
  background: linear-gradient(180deg, rgba(3,4,7,.92), rgba(3,4,7,.72) 70%, transparent);
  backdrop-filter: blur(8px);
}
h1 {
  margin: 4px 0 0;
  font-size: clamp(30px, 4vw, 58px);
  line-height: .95;
  letter-spacing: -1.1px;
  font-weight: 510;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: .13em;
  color: var(--accent-2);
  font-size: 11px;
  font-weight: 650;
}
.top-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.primary, .ghost, .danger, .tiny-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 15px;
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: .18s ease;
}
.primary {
  border-color: rgba(113,112,255,.54);
  background: linear-gradient(135deg, #5e6ad2, #7170ff);
  color: white;
  box-shadow: 0 12px 36px rgba(113,112,255,.26);
}
.primary:hover { transform: translateY(-1px); box-shadow: 0 18px 50px rgba(113,112,255,.34); }
.ghost, .tiny-btn { color: #d0d6e0; background: rgba(255,255,255,.035); }
.ghost:hover, .tiny-btn:hover { background: rgba(255,255,255,.07); color: var(--text); }
.danger { background: rgba(251,113,133,.12); color: #fecdd3; border-color: rgba(251,113,133,.26); }

.view { max-width: 1500px; margin: 0 auto; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, .85fr);
  gap: 22px;
  align-items: stretch;
}
.panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255,255,255,.065), rgba(255,255,255,.032));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}
.hero-panel { padding: clamp(24px, 4vw, 44px); min-height: 390px; position: relative; overflow: hidden; }
.hero-panel::after {
  content: '';
  position: absolute;
  inset: auto -18% -35% 20%;
  height: 220px;
  background: radial-gradient(circle, rgba(125,211,252,.18), transparent 68%);
  pointer-events: none;
}
.hero-title { max-width: 840px; font-size: clamp(42px, 7vw, 92px); line-height: .86; letter-spacing: -3px; font-weight: 510; margin: 16px 0; }
.hero-copy { max-width: 760px; color: #c7ccd7; font-size: 18px; line-height: 1.65; }
.metrics { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 28px; }
.metric { padding: 15px; border-radius: 16px; background: rgba(0,0,0,.24); border: 1px solid var(--border-soft); }
.metric strong { display: block; font-size: 28px; letter-spacing: -.04em; }
.metric span { color: var(--muted); font-size: 12px; }

.chat-panel { padding: 18px; display: grid; grid-template-rows: auto 1fr auto; min-height: 390px; }
.chat-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--border-soft); }
.chat-head .eyebrow, .chat-head strong { display: block; }
.chat-head strong { margin-top: 4px; font-size: 18px; letter-spacing: -.03em; }
.chat-log { display: grid; gap: 10px; align-content: start; max-height: 320px; overflow: auto; padding: 14px 4px; }
.bubble { max-width: 92%; padding: 11px 13px; border-radius: 15px; line-height: 1.42; color: #d7dce7; background: rgba(255,255,255,.06); border: 1px solid var(--border-soft); }
.bubble.user { justify-self: end; color: white; background: rgba(113,112,255,.22); border-color: rgba(113,112,255,.34); }
.chat-form { display: grid; gap: 10px; }
.chat-form textarea, .recommendation-form textarea, .field input, .field textarea, .field select {
  width: 100%;
  min-height: 100px;
  resize: vertical;
  padding: 13px 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--text);
  background: rgba(0,0,0,.28);
  outline: none;
}
.field input, .field select { min-height: 42px; }
.chat-form textarea:focus, .recommendation-form textarea:focus, .field input:focus, .field textarea:focus { border-color: rgba(113,112,255,.65); box-shadow: 0 0 0 4px rgba(113,112,255,.12); }

.section { margin-top: 24px; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 18px; margin: 0 0 14px; }
.section-head h2 { margin: 0; font-size: 28px; letter-spacing: -.04em; }
.section-head p { margin: 4px 0 0; color: var(--muted); }
.room-grid, .project-grid, .stage-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.room-card, .project-card, .stage-card, .detail-card {
  position: relative;
  overflow: hidden;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  transition: .18s ease;
}
.room-card:hover, .project-card:hover, .stage-card:hover { transform: translateY(-2px); border-color: rgba(125,211,252,.28); background: rgba(255,255,255,.07); }
.room-card::before, .stage-card::before {
  content: '';
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), transparent);
  opacity: .9;
}
.card-kicker { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 12px; font-family: var(--mono); }
.card-title { margin: 12px 0 8px; font-size: 19px; font-weight: 590; letter-spacing: -.02em; }
.card-copy { color: var(--muted); line-height: 1.55; font-size: 14px; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.badge { display: inline-flex; align-items: center; gap: 7px; min-height: 26px; padding: 0 9px; border-radius: 999px; color: #d0d6e0; background: rgba(255,255,255,.05); border: 1px solid var(--border-soft); font-size: 12px; }
.badge.ok::before, .badge.warn::before, .badge.dim::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--ok); }
.badge.warn::before { background: var(--warn); }
.badge.dim::before { background: var(--subtle); }

.page-layout { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 18px; align-items: start; }
.stack { display: grid; gap: 14px; }
.detail-card h2, .detail-card h3 { margin-top: 0; letter-spacing: -.03em; }
.detail-card p, .detail-card li { color: #c8ced8; line-height: 1.62; }
.detail-card pre {
  white-space: pre-wrap;
  color: #e8ebf2;
  line-height: 1.62;
  padding: 16px;
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  background: rgba(0,0,0,.25);
}
.stage-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 0; }
.stage-tabs a { padding: 9px 12px; border-radius: 11px; border: 1px solid var(--border); color: #d0d6e0; background: rgba(255,255,255,.035); font-size: 13px; }
.stage-tabs a.active, .stage-tabs a:hover { color: white; border-color: rgba(113,112,255,.5); background: rgba(113,112,255,.18); }
.recommendation-form { position: sticky; top: 132px; padding: 18px; }
.recommendation-form h3 { margin: 0 0 8px; }
.recommendation-list { display: grid; gap: 10px; margin-top: 12px; }
.rec { padding: 12px; border: 1px solid var(--border-soft); border-radius: 12px; background: rgba(255,255,255,.035); }
.rec small { color: var(--muted); font-family: var(--mono); }

.asset-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.asset-card { padding: 14px; border-radius: 16px; border: 1px solid var(--border-soft); background: rgba(0,0,0,.22); }
.asset-thumb {
  height: 128px;
  border-radius: 12px;
  margin-bottom: 12px;
  background:
    linear-gradient(135deg, rgba(113,112,255,.4), rgba(125,211,252,.18)),
    radial-gradient(circle at 65% 35%, rgba(255,255,255,.18), transparent 25%),
    #0a0b10;
  border: 1px solid var(--border-soft);
}
.keyword-row { display: flex; flex-wrap: wrap; gap: 8px; }
.timeline {
  position: relative;
  display: grid;
  gap: 12px;
  padding-left: 22px;
}
.timeline::before { content: ''; position: absolute; left: 8px; top: 4px; bottom: 4px; width: 2px; background: linear-gradient(var(--accent), var(--accent-2)); border-radius: 99px; }
.timeline-item {
  position: relative;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255,255,255,.045);
}
.timeline-item::before { content: ''; position: absolute; left: -20px; top: 20px; width: 12px; height: 12px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 0 6px rgba(125,211,252,.12); }
.timeline-item header { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.timecode { font-family: var(--mono); color: var(--accent-2); font-size: 12px; }
.timeline-editor { display: grid; grid-template-columns: 86px 86px minmax(160px, 1fr); gap: 8px; margin-top: 12px; }
.timeline-editor input { min-height: 36px; padding: 8px; border-radius: 10px; border: 1px solid var(--border-soft); background: rgba(0,0,0,.28); color: var(--text); }
.timeline-editor input[name="caption"], .timeline-editor input[name="visual"], .timeline-editor input[name="word_anchor"], .timeline-editor .save-timeline { grid-column: 1 / -1; }
.timeline-editor .save-timeline { min-height: 36px; }

.qc-list { display: grid; gap: 9px; }
.qc-row { display: flex; justify-content: space-between; gap: 12px; padding: 12px; border-radius: 12px; background: rgba(255,255,255,.035); border: 1px solid var(--border-soft); }
.footer-note { color: var(--muted); font-size: 12px; margin-top: 16px; }
.empty { padding: 32px; text-align: center; color: var(--muted); border: 1px dashed var(--border); border-radius: 18px; }
.loading-card { min-height: 280px; display: grid; place-items: center; gap: 14px; color: var(--muted); }
.loader { width: 46px; height: 46px; border: 2px solid rgba(255,255,255,.12); border-top-color: var(--accent-2); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 50;
  max-width: 420px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(16,185,129,.28);
  background: rgba(6, 78, 59, .86);
  box-shadow: var(--shadow);
}

@media (max-width: 1180px) {
  #app-shell { grid-template-columns: 1fr; }
  .sidebar { position: relative; height: auto; display: block; border-right: 0; border-bottom: 1px solid var(--border-soft); }
  .primary-nav { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .hero-grid, .page-layout { grid-template-columns: 1fr; }
  .recommendation-form { position: static; }
}
@media (max-width: 820px) {
  .main { padding: 18px 14px 36px; }
  .topbar { align-items: flex-start; flex-direction: column; }
  .room-grid, .project-grid, .stage-grid, .asset-grid, .metrics { grid-template-columns: 1fr; }
  .primary-nav { grid-template-columns: 1fr; }
  .hero-title { letter-spacing: -1.6px; }
  .timeline-editor { grid-template-columns: 1fr; }
  .timeline-editor input[name="caption"], .timeline-editor input[name="visual"], .timeline-editor input[name="word_anchor"], .timeline-editor .save-timeline { grid-column: auto; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}