/* KEYHOLE landing page: the console's own palette (cyan HUD on near-black, amber for the CRT readouts),
   feeds framed like monitor wall tiles, and the keyhole as the one ornament. */
:root {
  --bg: #04070a;
  --panel: #08111a;
  --ink: #d9e6ee;
  --dim: #8fa3b1;
  --hud: #00d4ff;
  --hud-dim: rgba(0, 212, 255, 0.16);
  --line: rgba(0, 212, 255, 0.28);
  --amber: #ffb800;
  --rec: #ff3b3b;
  --mono: 'JetBrains Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;
  --sans: 'IBM Plex Sans', system-ui, 'Segoe UI', sans-serif;
  --gutter: clamp(16px, 4vw, 56px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.65 var(--sans); overflow-x: hidden; }
img, video { display: block; max-width: 100%; height: auto; }
a { color: var(--hud); text-underline-offset: 3px; }
a:hover, a:focus-visible { color: #7fe9ff; }
b { color: #fff; font-weight: 600; }
code { font-family: var(--mono); font-size: 0.88em; color: var(--amber); }
h1, h2, h3 { font-family: var(--mono); font-weight: 700; margin: 0 0 0.6em; line-height: 1.15; }
h2 { font-size: clamp(26px, 3.6vw, 40px); letter-spacing: 0.01em; }
h3 { font-size: 15px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--hud); }
p { margin: 0 0 1em; }
.label, .layer { font-family: var(--mono); font-size: 12px; letter-spacing: 0.2em; color: var(--amber); margin-bottom: 0.9em; }

.skip { position: absolute; left: -9999px; top: 8px; background: var(--hud); color: #001018; padding: 8px 12px; z-index: 50; }
.skip:focus { left: 8px; }

/* ------------------------------------------------------------ top bar */
.bar {
  position: fixed; inset: 0 0 auto 0; z-index: 20; display: flex; align-items: center; gap: 24px;
  padding: 10px var(--gutter); background: linear-gradient(rgba(4, 7, 10, 0.94), rgba(4, 7, 10, 0.66));
  border-bottom: 1px solid var(--line); backdrop-filter: blur(6px);
}
.bar-mark { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font: 700 16px var(--mono); letter-spacing: 0.34em; }
.bar-hole { width: 12px; height: 18px; position: relative; }
.bar-hole::before { content: ''; position: absolute; left: 1px; top: 0; width: 10px; height: 10px; border-radius: 50%; border: 2px solid var(--hud); box-sizing: border-box; }
.bar-hole::after { content: ''; position: absolute; left: 3px; top: 8px; width: 6px; height: 10px; background: var(--hud); clip-path: polygon(30% 0, 70% 0, 100% 100%, 0 100%); }
.bar-links { display: flex; gap: 18px; margin-left: auto; }
.bar-links a { color: var(--dim); text-decoration: none; font: 500 12px var(--mono); letter-spacing: 0.12em; text-transform: uppercase; }
.bar-links a:hover, .bar-links a:focus-visible { color: var(--hud); }
@media (max-width: 980px) { .bar-links { display: none; } .bar .btn { margin-left: auto; } }

.btn {
  display: inline-block; padding: 12px 22px; border: 1px solid var(--hud); background: var(--hud); color: #001018;
  text-decoration: none; font: 700 13px var(--mono); text-transform: uppercase; letter-spacing: 0.14em; transition: background 0.15s, color 0.15s;
}
.btn:hover, .btn:focus-visible { background: #7fe9ff; border-color: #7fe9ff; color: #001018; }
.btn-ghost { background: rgba(0, 10, 16, 0.55); color: var(--hud); }
.btn-ghost:hover, .btn-ghost:focus-visible { background: var(--hud); color: #001018; }
.btn-small { padding: 6px 14px; font-size: 12px; }

.pill {
  display: inline-flex; align-items: center; gap: 10px; padding: 6px 14px; border: 1px solid var(--amber);
  color: var(--amber); background: rgba(16, 10, 0, 0.7); text-transform: uppercase; letter-spacing: 0.16em; font: 600 12px var(--mono);
}
.pill-dot { width: 8px; height: 8px; background: var(--amber); border-radius: 50%; box-shadow: 0 0 10px var(--amber); animation: blink 1.6s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0.25; } }

/* ------------------------------------------------------------ hero */
.hero { position: relative; min-height: 100svh; display: flex; align-items: flex-end; overflow: hidden; background: #020406; }
.hero-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4, 7, 10, 0.88) 0%, rgba(4, 7, 10, 0.55) 45%, rgba(4, 7, 10, 0.05) 75%), linear-gradient(0deg, var(--bg) 0%, rgba(4, 7, 10, 0) 30%); }
.hud-corners span { position: absolute; width: 34px; height: 34px; border: 2px solid var(--hud); opacity: 0.75; }
.hud-corners span:nth-child(1) { top: 76px; left: var(--gutter); border-right: 0; border-bottom: 0; }
.hud-corners span:nth-child(2) { top: 76px; right: var(--gutter); border-left: 0; border-bottom: 0; }
.hud-corners span:nth-child(3) { bottom: 24px; left: var(--gutter); border-right: 0; border-top: 0; }
.hud-corners span:nth-child(4) { bottom: 24px; right: var(--gutter); border-left: 0; border-top: 0; }
.hud-rec { position: absolute; top: 84px; right: calc(var(--gutter) + 48px); margin: 0; font: 600 12px var(--mono); letter-spacing: 0.18em; color: var(--ink); display: flex; align-items: center; gap: 8px; text-shadow: 0 1px 3px #000; }
.rec-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--rec); box-shadow: 0 0 8px var(--rec); animation: blink 1.2s steps(2) infinite; }
.hero-text { position: relative; z-index: 2; padding: 120px var(--gutter) 72px; max-width: 760px; }
.wordmark { font-size: clamp(56px, 11vw, 132px); letter-spacing: 0.16em; margin: 18px 0 8px; color: #fff; text-shadow: 0 0 28px rgba(0, 212, 255, 0.35); }
.tagline { font-size: clamp(18px, 2.2vw, 23px); line-height: 1.45; color: #eef6fb; max-width: 34em; text-shadow: 0 1px 6px #000; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 18px; }
.hero-note { color: var(--dim); font-size: 14px; max-width: 34em; }
@media (max-width: 640px) {
  .hud-rec, .hud-corners { display: none; }
  .hero-shade { background: linear-gradient(0deg, var(--bg) 8%, rgba(4, 7, 10, 0.72) 55%, rgba(4, 7, 10, 0.3) 100%); }
  .wordmark { letter-spacing: 0.1em; }
}

/* ------------------------------------------------------------ provenance */
.fork { padding: 24px var(--gutter) 40px; }
.fork-card {
  max-width: 980px; margin: 0 auto; padding: 28px clamp(18px, 3vw, 36px); background: var(--panel);
  border: 1px solid var(--line); border-left: 4px solid var(--amber); position: relative;
}
.fork-card h2 { font-size: clamp(24px, 3vw, 34px); }
.fork-card h2 a { color: #fff; text-decoration-color: var(--amber); }

/* ------------------------------------------------------------ intro */
.intro { max-width: 980px; margin: 0 auto; padding: 40px var(--gutter) 24px; }
.intro p { color: #c5d4dd; }

/* ------------------------------------------------------------ feature rows */
.feature {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(24px, 4vw, 56px); align-items: center;
  max-width: 1320px; margin: 0 auto; padding: 56px var(--gutter); border-top: 1px solid rgba(0, 212, 255, 0.1);
}
.feature.flip { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.feature.flip .feature-text { order: 2; }
.feature-text p { color: #c5d4dd; }
.screen { position: relative; margin: 0; border: 1px solid var(--line); background: #000; padding: 6px; box-shadow: 0 0 0 1px #000, 0 18px 50px rgba(0, 0, 0, 0.6); }
.screen video { width: 100%; aspect-ratio: 16 / 9; background: #000; }
.screen-tag { position: absolute; top: 14px; left: 14px; z-index: 2; font: 600 11px var(--mono); letter-spacing: 0.16em; color: var(--hud); background: rgba(0, 0, 0, 0.72); padding: 3px 8px; border: 1px solid var(--line); }
.screen figcaption { font-size: 13px; color: var(--dim); padding: 8px 4px 2px; }
.transcript { list-style: none; padding: 0; margin: 0 0 1em; font-size: 15px; }
.transcript li { padding: 10px 12px; margin-bottom: 8px; background: var(--panel); border: 1px solid var(--line); color: #c5d4dd; }
.transcript span { font-family: var(--mono); color: var(--hud); margin-right: 6px; }
@media (max-width: 860px) {
  .feature, .feature.flip { grid-template-columns: 1fr; padding: 40px var(--gutter); }
  .feature.flip .feature-text { order: 0; }
}

/* ------------------------------------------------------------ stills */
.stills { max-width: 1320px; margin: 0 auto; padding: 56px var(--gutter); border-top: 1px solid rgba(0, 212, 255, 0.1); }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.grid figure { margin: 0; background: #000; border: 1px solid var(--line); }
.grid img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.grid figcaption { font: 12px/1.4 var(--mono); color: var(--dim); padding: 8px 10px; letter-spacing: 0.04em; }
@media (max-width: 900px) { .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------ roadmap */
.next { padding: 56px var(--gutter); background: radial-gradient(ellipse at 70% 0%, rgba(120, 255, 170, 0.07), transparent 60%); }
.dossier { max-width: 980px; margin: 0 auto; padding: 30px clamp(18px, 3vw, 40px); border: 1px dashed rgba(120, 255, 170, 0.45); background: rgba(6, 16, 12, 0.7); }
.dossier .label { color: #78ffaa; }
.plan { padding-left: 1.2em; margin: 0 0 1em; }
.plan li { margin-bottom: 0.6em; color: #c5d4dd; }

/* ------------------------------------------------------------ changes, making, credits */
.changes, .making, .credits { max-width: 1100px; margin: 0 auto; padding: 56px var(--gutter); border-top: 1px solid rgba(0, 212, 255, 0.1); }
.ticks { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 28px; }
.ticks li { position: relative; padding-left: 26px; color: #c5d4dd; }
.ticks li::before { content: '+'; position: absolute; left: 0; top: 0; font: 700 16px var(--mono); color: var(--hud); }
@media (max-width: 760px) { .ticks { grid-template-columns: 1fr; } }
.cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.cols p { color: #c5d4dd; font-size: 16px; }
@media (max-width: 860px) { .cols { grid-template-columns: 1fr; } }
.run { margin-top: 12px; padding: 14px 16px; background: var(--panel); border: 1px solid var(--line); font-size: 15px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 620px; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid rgba(0, 212, 255, 0.12); vertical-align: top; }
th { font: 600 11px var(--mono); letter-spacing: 0.16em; text-transform: uppercase; color: var(--amber); background: var(--panel); }
td { color: #c5d4dd; }
tbody tr:nth-child(odd) td { background: rgba(8, 17, 26, 0.5); }
.small { font-size: 13px; color: var(--dim); margin-top: 14px; }

.foot { padding: 36px var(--gutter) 48px; border-top: 1px solid var(--line); color: var(--dim); font-size: 14px; text-align: center; }
.foot p { max-width: 760px; margin: 0 auto 0.8em; }