/* Hoja compartida por las páginas de demostración (pc-remastered / pc-remake). */

:root {
  --bg: #0e1013;
  --bg-2: #15181d;
  --line: #262b32;
  --ink: #e6e9ee;
  --ink-dim: #949cab;
  --accent: #8ec5ff;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(80% 55% at 50% 0%, #1b2029 0%, transparent 70%),
    var(--bg);
  color: var(--ink);
  font: 15px/1.55 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }
a:hover { color: #fff; }

/* ---------- Cabecera ---------- */
.bar {
  padding: 26px 24px 12px;
  max-width: 1180px;
  margin: 0 auto;
}
.back {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 13px;
  text-decoration: none;
  color: var(--ink-dim);
}
.back:hover { color: var(--ink); }
.bar h1 {
  margin: 0;
  font-size: clamp(22px, 4vw, 32px);
  font-weight: 650;
  letter-spacing: -.02em;
}
.bar h1 em {
  font-style: normal;
  color: var(--accent);
}
.sub {
  margin: 6px 0 0;
  color: var(--ink-dim);
  font-size: 14px;
}

/* ---------- Distribución ---------- */
main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 12px 24px 60px;
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1fr) 320px;
  align-items: start;
}
@media (max-width: 880px) {
  main { grid-template-columns: minmax(0, 1fr); }
}

.viewer {
  /* Fondo de plató: un halo detrás del portátil. Un chasis negro sobre fondo negro
     no se ve, y todo el diseño gaming es negro. */
  background:
    radial-gradient(58% 52% at 50% 38%, #2a3341 0%, #171c24 55%, #0d1014 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 8px 0;
  overflow: hidden;
}
.hint {
  margin: 0;
  padding: 12px 10px 14px;
  text-align: center;
  color: var(--ink-dim);
  font-size: 12.5px;
}

/* El lienzo del remake WebGL ocupa el mismo hueco que el componente CSS. */
.viewer canvas { display: block; width: 100%; border-radius: 6px; }

/* ---------- Panel ---------- */
.panel {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 18px 22px;
}
.panel h2 {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.panel h2 + * { margin-top: 0; }
.panel h2:not(:first-child) { margin-top: 26px; }

.row { display: block; margin-bottom: 16px; font-size: 13.5px; }
.row > span {
  display: flex;
  justify-content: space-between;
  margin-bottom: 7px;
  color: var(--ink-dim);
}
.row output { color: var(--ink); font-variant-numeric: tabular-nums; }

.row.check {
  display: flex;
  align-items: center;
  gap: 9px;
  cursor: pointer;
}
.row.check span { color: var(--ink); margin: 0; }

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}
input[type="checkbox"] { accent-color: var(--accent); width: 15px; height: 15px; }

.swatches { display: flex; gap: 8px; }
.swatches button {
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 2px solid transparent;
  background: var(--c);
  cursor: pointer;
  padding: 0;
  transition: transform .12s, border-color .12s;
}
.swatches button.rgb {
  background: conic-gradient(#ff2d6f, #ffd24a, #57d98a, #4ab8ff, #a97bff, #ff2d6f);
}
.swatches button:hover { transform: scale(1.12); }
.swatches button.on { border-color: var(--ink); }

.btns { display: flex; gap: 8px; }
.btns button {
  flex: 1;
  padding: 8px 10px;
  border-radius: 7px;
  border: 1px solid var(--line);
  background: #1d222a;
  color: var(--ink);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: background .12s, border-color .12s;
}
.btns button:hover { background: #262d37; border-color: #3a424e; }

/* ---------- Notas ---------- */
.notes { margin: 0; font-size: 13px; }
.notes dt {
  font-weight: 600;
  color: var(--ink);
  margin-top: 14px;
}
.notes dt:first-child { margin-top: 0; }
.notes dd {
  margin: 3px 0 0;
  color: var(--ink-dim);
  line-height: 1.5;
}
code {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: .92em;
  background: #22272f;
  padding: 1px 4px;
  border-radius: 4px;
  color: #cbd4e1;
}

/* Aviso de que el navegador no soporta algo (WebGL, módulos ES…). */
.fallback {
  margin: 20px;
  padding: 16px 18px;
  border: 1px solid #4a3520;
  background: #241a10;
  border-radius: 8px;
  color: #f0c98a;
  font-size: 14px;
}
.fallback code { background: #33251530; color: #f0c98a; }