:root {
  color-scheme: dark;
  --bg: #070b12;
  --ink: #e7eef6;
  --muted: #9aa8b8;
  --line: rgba(226, 182, 87, 0.45);
  --amber: #e2b657;
  --teal: #7ee0d6;
  --card: rgba(8, 14, 24, 0.82);
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--ink); }
body {
  font-family: "Source Sans 3", "Segoe UI", sans-serif;
  min-height: 100vh;
}
a { color: var(--teal); }
button, .btn {
  font: inherit;
  cursor: pointer;
}
.site {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  padding: 14px 22px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.brand {
  color: var(--ink);
  text-decoration: none;
  font-family: Syne, sans-serif;
  font-weight: 800;
  letter-spacing: 0.04em;
}
.site nav { display: flex; flex-wrap: wrap; gap: 10px 16px; }
.site nav a { color: var(--muted); text-decoration: none; }
.site nav a:hover { color: var(--ink); }
.briefing {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 28px;
  width: min(1180px, calc(100% - 32px));
  margin: 28px auto 48px;
}
.art {
  position: relative;
  min-height: 420px;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
}
.art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  min-height: 420px;
}
.art figcaption {
  position: absolute;
  left: 16px;
  bottom: 14px;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #f3e7c4;
  text-shadow: 0 1px 8px #000;
}
.panel {
  background: var(--card);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 18px;
  padding: 22px 22px 18px;
}
.kicker {
  margin: 0 0 6px;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
}
h1 {
  margin: 0 0 8px;
  font-family: Syne, sans-serif;
  font-weight: 800;
  font-size: clamp(40px, 5vw, 64px);
  line-height: 0.92;
  letter-spacing: -0.03em;
}
.lead { margin: 0 0 16px; color: var(--muted); line-height: 1.45; }
.modes { display: grid; gap: 8px; }
.mode {
  text-align: left;
  color: var(--ink);
  background: #101826;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 12px 14px;
  min-height: 44px;
}
.mode.on, .mode:hover { border-color: var(--amber); }
.mode b { display: block; font-family: Syne, sans-serif; }
.mode span { display: block; color: var(--muted); font-size: 14px; margin-top: 2px; }
.row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 14px;
}
.file {
  display: none;
  width: 100%;
  color: var(--muted);
}
.file.show { display: block; }
.check {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  color: var(--muted);
  font-size: 14px;
}
.play, .tool {
  min-height: 44px;
  border-radius: 999px;
  border: 1px solid var(--amber);
  background: var(--amber);
  color: #1a1203;
  font-weight: 700;
  padding: 0 18px;
}
.play:disabled { opacity: 0.45; cursor: not-allowed; }
.tool, .ghost {
  background: transparent;
  color: var(--ink);
  border-color: rgba(255,255,255,0.2);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  min-height: 44px;
  border-radius: 999px;
}
.controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 16px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 14px;
}
.controls kbd {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  color: var(--ink);
}
.legal {
  margin: 16px 0 0;
  color: #7e8b9a;
  font-size: 13px;
  line-height: 1.45;
}
.status { min-height: 1.3em; color: var(--teal); font-family: "IBM Plex Mono", ui-monospace, monospace; font-size: 13px; }
#stage {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 30;
  background: #000;
}
#stage.on { display: block; }
#canvas {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border: 0;
  padding: 0;
  background: #000;
  outline: none;
  display: block;
}
#stage.phosphor::after {
  content: "";
  pointer-events: none;
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(to bottom, rgba(0,0,0,0.18) 0 1px, transparent 1px 3px),
    radial-gradient(ellipse at center, transparent 40%, rgba(0,0,0,0.45) 100%);
}
.stage-status {
  position: absolute;
  left: 16px;
  bottom: 16px;
  z-index: 2;
  margin: 0;
  color: var(--teal);
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 13px;
  text-shadow: 0 1px 6px #000;
}
.stage-tools {
  position: absolute;
  top: 10px;
  right: 10px;
  z-index: 2;
  display: flex;
  gap: 8px;
}
.stage-tools button {
  min-height: 44px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.25);
  background: rgba(0,0,0,0.55);
  color: #fff;
  padding: 0 12px;
}
#output {
  display: none;
  position: absolute;
  inset: 48px 12px 12px;
  z-index: 3;
  width: auto;
  height: auto;
  background: #070b12;
  color: #c8d0da;
  border: 1px solid #333;
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-size: 13px;
}
@media (max-width: 860px) {
  .briefing { grid-template-columns: 1fr; width: min(100% - 20px, 720px); }
  .art, .art img { min-height: 220px; }
  .controls { grid-template-columns: 1fr; }
  .site { flex-wrap: wrap; }
}