:root {
  color-scheme: dark;
  --bg: #0b0d10;
  --panel: #13171c;
  --panel-2: #191f25;
  --text: #edf1f4;
  --muted: #9aa6af;
  --line: #2b343d;
  --accent: #e8b15a;
  --accent-soft: rgba(232,177,90,.14);
  --good: #8ec7a5;
  --warning: #e1c27a;
  --danger: #df8d78;
  --radius: 16px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #151a20 0, var(--bg) 42rem);
  color: var(--text);
}
a { color: var(--accent); }
button, select, input { font: inherit; }
button, select {
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  border-radius: 10px;
  padding: .65rem .85rem;
}
button { cursor: pointer; }
button:hover, button:focus-visible, select:focus-visible, input:focus-visible { border-color: var(--accent); outline: none; }
button[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); }

.topbar, main, footer { width: min(1500px, calc(100% - 2rem)); margin-inline: auto; }
.topbar {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  align-items: end;
  padding: 2rem 0 1rem;
}
.title-row { display: flex; align-items: center; gap: .8rem; flex-wrap: wrap; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: .35rem; font-size: clamp(2rem, 4vw, 4rem); letter-spacing: -.045em; }
h2 { margin-bottom: .55rem; }
h3 { margin-bottom: .45rem; font-size: 1rem; color: var(--accent); }
.eyebrow { margin-bottom: .35rem; text-transform: uppercase; letter-spacing: .14em; font-size: .74rem; color: var(--accent); }
.lede { max-width: 74ch; color: var(--muted); }
.version-badge, .status-pill, .source-status {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(19,23,28,.8);
}
.version-badge { padding: .35rem .65rem; font-size: .76rem; }
.top-actions, .button-row { display: flex; gap: .6rem; flex-wrap: wrap; }
.top-actions { justify-content: flex-end; }

.brief {
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  padding: 1rem 1.1rem;
  margin-bottom: .75rem;
  border-radius: 0 var(--radius) var(--radius) 0;
}
.status-strip { display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: 1rem; }
.status-pill { padding: .3rem .58rem; font-size: .74rem; }
.status-pill[data-state="good"] { color: var(--good); border-color: rgba(142,199,165,.5); }
.status-pill[data-state="warning"] { color: var(--warning); border-color: rgba(225,194,122,.5); }
.status-pill[data-state="recording"] { color: var(--danger); border-color: rgba(223,141,120,.6); }
.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(19,23,28,.92);
}
.controls {
  display: grid;
  grid-template-columns: repeat(4, minmax(145px, 1fr)) minmax(130px,.7fr) auto;
  gap: .8rem;
  align-items: end;
  padding: 1rem;
  margin-bottom: 1rem;
}
.controls label { display: grid; gap: .35rem; color: var(--muted); font-size: .84rem; }
.controls input[type="range"] { width: 100%; }
.checkbox-label { grid-template-columns: auto 1fr !important; align-items: center; align-content: center; padding-bottom: .55rem; }

.guided-panel { padding: 1rem; margin-bottom: 1rem; border-color: rgba(232,177,90,.48); }
.guided-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .8rem; }
.guided-grid > div { padding: .8rem; border: 1px solid var(--line); border-radius: 12px; background: rgba(8,10,13,.4); }
.guided-grid strong { color: var(--accent); }
.guided-grid p { margin-bottom: 0; color: #cbd3d9; }

.stage-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(320px, .72fr);
  gap: 1rem;
  align-items: stretch;
}
.stage-wrap {
  position: relative;
  min-height: 560px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #080a0d;
}
canvas { display: block; width: 100%; height: 100%; min-height: 560px; touch-action: none; }
.stage-badges { position: absolute; top: .8rem; left: .8rem; display: flex; gap: .5rem; flex-wrap: wrap; max-width: calc(100% - 1.6rem); }
.stage-badges span {
  background: rgba(8,10,13,.82);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: .35rem .65rem;
  font-size: .78rem;
}
.stage-help {
  position: absolute;
  right: .8rem;
  bottom: .7rem;
  color: var(--muted);
  background: rgba(8,10,13,.78);
  padding: .35rem .55rem;
  border-radius: 8px;
  font-size: .74rem;
}
.recording-badge {
  position: absolute;
  top: .8rem;
  right: .8rem;
  color: var(--danger);
  background: rgba(8,10,13,.86);
  border: 1px solid rgba(223,141,120,.6);
  border-radius: 999px;
  padding: .35rem .65rem;
  font-size: .76rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.speaker-panel { padding: 1.1rem; max-height: 760px; overflow: auto; }
.speaker-panel p, .speaker-panel li { color: #cbd3d9; }
.speaker-panel ul { padding-left: 1.2rem; }
blockquote {
  margin: 0;
  padding: .9rem 1rem;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  color: var(--text);
}
.source-drawer { margin-top: 1rem; border-top: 1px solid var(--line); padding-top: .8rem; }
.source-drawer summary { cursor: pointer; color: var(--accent); font-weight: 700; }
.source-item { margin-top: .75rem; padding: .75rem; border: 1px solid var(--line); border-radius: 10px; background: rgba(8,10,13,.45); }
.source-item p { margin: .35rem 0 0; font-size: .86rem; }
.source-head { display: flex; justify-content: space-between; gap: .6rem; align-items: start; }
.source-status { padding: .18rem .45rem; font-size: .66rem; white-space: nowrap; }
.source-status[data-kind="primary"] { color: var(--good); }
.source-status[data-kind="legacy"] { color: var(--warning); }
.source-status[data-kind="lore"] { color: #cf9ee8; }
.source-status[data-kind="derived"] { color: #a5bfe8; }
.source-status[data-kind="provisional"] { color: var(--danger); }

.namespace-section { margin-top: 2rem; }
.section-heading { display: flex; justify-content: space-between; gap: 2rem; align-items: end; }
.section-heading > p { max-width: 55ch; color: var(--muted); }
.namespace-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.namespace-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  padding: 1rem;
  cursor: pointer;
}
.namespace-card[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); }
.namespace-card p { color: var(--muted); }
.namespace-card .namespace-tag { display: inline-block; padding: .25rem .5rem; border: 1px solid var(--line); border-radius: 999px; font-size: .72rem; color: var(--accent); }

.scene-controls { margin-top: 1rem; padding: 1rem; }
.scene-controls:empty { display: none; }
.scene-controls .control-grid { display: grid; grid-template-columns: repeat(4, minmax(130px, 1fr)); gap: .8rem; }
.scene-controls label { display: grid; gap: .35rem; color: var(--muted); font-size: .84rem; }
.module-grid, .resource-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: .7rem; }
.module-card, .resource-card { border: 1px solid var(--line); border-radius: 12px; padding: .8rem; background: rgba(8,10,13,.42); }
.module-card button { width: 100%; text-align: left; margin-bottom: .45rem; }
.module-card[aria-current="true"] { border-color: var(--accent); background: var(--accent-soft); }
.module-card p, .resource-card p { margin-bottom: 0; color: var(--muted); font-size: .84rem; }
.disambiguation { margin-top: .8rem; padding: .8rem; border-left: 3px solid var(--warning); background: rgba(225,194,122,.08); }

.keyboard-section {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 1rem;
  margin-top: 2rem;
  padding: 1rem 0 2rem;
}
.key-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .6rem; }
.key-grid span { border: 1px solid var(--line); border-radius: 10px; padding: .65rem; color: var(--muted); }
kbd { color: var(--text); border: 1px solid #4a5661; border-bottom-width: 3px; border-radius: 6px; padding: .08rem .35rem; background: #1d232a; }

footer { border-top: 1px solid var(--line); padding: 1.3rem 0 2.2rem; color: var(--muted); display: flex; justify-content: space-between; gap: 1rem; }
.toast {
  position: fixed;
  left: 50%;
  bottom: 1.2rem;
  transform: translateX(-50%);
  z-index: 50;
  background: #1d232a;
  color: var(--text);
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: .7rem 1rem;
  box-shadow: 0 10px 35px rgba(0,0,0,.35);
}

body.presenter .topbar,
body.presenter .brief,
body.presenter .status-strip,
body.presenter .controls,
body.presenter .guided-panel,
body.presenter .namespace-section,
body.presenter .scene-controls,
body.presenter .keyboard-section,
body.presenter footer { display: none; }
body.presenter main { width: 100%; }
body.presenter .stage-grid { grid-template-columns: 1fr; }
body.presenter .speaker-panel { display: none; }
body.presenter .stage-wrap, body.presenter canvas { min-height: 100vh; border: 0; border-radius: 0; }

@media (max-width: 1150px) {
  .controls { grid-template-columns: repeat(3, 1fr); }
  .stage-grid { grid-template-columns: 1fr; }
  .speaker-panel { max-height: none; }
}
@media (max-width: 900px) {
  .topbar { align-items: start; }
  .guided-grid, .namespace-grid { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .topbar, .section-heading, footer { display: block; }
  .top-actions { margin-top: 1rem; justify-content: flex-start; }
  .controls { grid-template-columns: 1fr; }
  .keyboard-section { grid-template-columns: 1fr; }
  .key-grid { grid-template-columns: 1fr 1fr; }
  .scene-controls .control-grid { grid-template-columns: 1fr 1fr; }
  .stage-help { display: none; }
}
@media (max-width: 430px) {
  .key-grid, .scene-controls .control-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }