/* Panopticon site — the phosphor theme, lifted straight from Theme.swift.
   Warm near-black field, amber phosphor text, one cool accent for the agent. */
:root {
  --bg: #0b0908;
  --bg-2: #120f0d;
  --ink: #e8d9c0;
  --ink-dim: #a08a6c;
  --ink-faint: #5a4b3a;
  --phosphor: #ffb35c;
  --accent: #7fd3ff;
  --tool: #9ee493;
  --warn: #ffcf6b;
  --rule: #2a2119;
  --mono: "FiraCode Nerd Font Mono", "Fira Code", "SF Mono", ui-monospace, Menlo, monospace;
  --sans: "Inter", -apple-system, "SF Pro Text", system-ui, sans-serif;
  --measure: 62ch;
}
* { box-sizing: border-box; }
html { background: var(--bg); color: var(--ink); font: 16px/1.5 var(--sans); -webkit-text-size-adjust: 100%; }
body { margin: 0; min-height: 100dvh; display: flex; flex-direction: column; }
a { color: var(--accent); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; text-underline-offset: .15em; }
:focus-visible { outline: 2px solid var(--phosphor); outline-offset: 2px; }
code, kbd, pre, .tape, .chords dt, .num { font-family: var(--mono); }
code { color: var(--phosphor); font-size: .92em; }
kbd { display: inline-block; padding: .05em .45em; border: 1px solid var(--ink-faint); border-bottom-width: 2px; border-radius: 4px; color: var(--ink); font-size: .85em; line-height: 1.5; background: var(--bg-2); }
kbd + kbd { margin-left: .2em; }
img, video { display: block; max-width: 100%; height: auto; }

/* Masthead: one row, one job. */
.mast { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding: 1rem clamp(1rem, 4vw, 3rem); border-bottom: 1px solid var(--rule); }
.mark { display: inline-flex; align-items: center; gap: .55rem; color: var(--phosphor); font-family: var(--mono); font-weight: 600; letter-spacing: .04em; }
.mast nav { display: flex; gap: 1.25rem; font-family: var(--mono); font-size: .9rem; }
.mast nav a { color: var(--ink-dim); }
.mast nav a:hover { color: var(--ink); }

main { flex: 1; }

/* Hero: the tube dominates; text sits beside it on wide, beneath on narrow. */
.hero { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center; padding: clamp(1.5rem, 5vw, 4rem) clamp(1rem, 4vw, 3rem); }
.tube { position: relative; border-radius: 10px; overflow: hidden; background: #000; box-shadow: 0 0 0 1px var(--rule), 0 0 60px -10px rgba(255, 179, 92, .35), 0 30px 80px -30px #000; }
.hero-media { margin: 0; min-width: 0; }
.tube video { aspect-ratio: 1180 / 820; width: 100%; object-fit: contain; }
.demo-meta { display: flex; align-items: center; justify-content: space-between; gap: .75rem; max-width: none; font-size: .8rem; }
.demo-meta span { color: var(--ink-dim); }
.demo-meta button { flex-shrink: 0; padding: .3rem .6rem; color: var(--phosphor); background: var(--bg-2); border: 1px solid var(--rule); border-radius: 4px; font: inherit; cursor: pointer; }
.demo-meta button:hover { border-color: var(--phosphor); }

.lede h1 { font-size: clamp(1.7rem, 3.2vw, 2.6rem); line-height: 1.12; letter-spacing: -.01em; margin: 0 0 1rem; font-weight: 650; }
.strap { color: var(--ink-dim); max-width: var(--measure); margin: 0 0 1.5rem; }
.chords { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem 1.2rem; margin: 0; }
.chords div { display: flex; flex-direction: column; gap: .25rem; }
.chords dt { color: var(--ink); font-size: .9rem; }
.chords dd { margin: 0; color: var(--ink-dim); font-size: .9rem; }

/* Bands: numbered sections instead of cards. */
.band { padding: clamp(2rem, 5vw, 4rem) clamp(1rem, 4vw, 3rem); border-top: 1px solid var(--rule); }
.band-head { display: flex; align-items: baseline; gap: 1rem; margin-bottom: 1.5rem; }
.num { color: var(--phosphor); font-size: .95rem; letter-spacing: .1em; }
.band h2 { margin: 0; font-size: clamp(1.4rem, 2.4vw, 1.9rem); font-weight: 600; letter-spacing: -.01em; }
.band figure { margin: 0; }
.band figure img { border-radius: 8px; box-shadow: 0 0 0 1px var(--rule); }
figcaption { margin-top: .75rem; color: var(--ink-dim); font-size: .92rem; max-width: var(--measure); }
.facts { margin: 1.5rem 0 0; padding: 0; list-style: none; display: grid; gap: .8rem; max-width: 70ch; }
.facts li { padding-left: 1.4rem; position: relative; color: var(--ink); }
.facts li::before { content: "▸"; position: absolute; left: 0; color: var(--phosphor); }
.split { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: clamp(1.5rem, 4vw, 3rem); align-items: start; }
.split > * { min-width: 0; }
.split .facts { margin-top: 0; }
.split h3 { margin: 0 0 .75rem; font-size: 1.05rem; font-weight: 600; }
pre { margin: 0 0 1rem; padding: 1rem 1.1rem; overflow-x: auto; background: var(--bg-2); border: 1px solid var(--rule); border-radius: 8px; font-size: .84rem; line-height: 1.55; color: var(--ink); }
pre code { color: inherit; }
.fine { color: var(--ink-dim); font-size: .92rem; max-width: var(--measure); margin: .75rem 0 0; }

footer { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .5rem 2rem; padding: 1.25rem clamp(1rem, 4vw, 3rem); border-top: 1px solid var(--rule); font-size: .85rem; color: var(--ink-dim); }
.dim { color: var(--ink-faint); }

@media (max-width: 900px) {
  .hero, .split { grid-template-columns: minmax(0, 1fr); }
  .mast nav { gap: .9rem; font-size: .84rem; }
}
@media (max-width: 480px) {
  .mast { align-items: flex-start; gap: .8rem; }
  .mast nav { flex-wrap: wrap; justify-content: flex-end; gap: .4rem .7rem; }
  .demo-meta { align-items: flex-start; }
}