:root {
  --bg: #08090d;
  --panel: #0e1117;
  --line: #1e2430;
  --ink: #e6edf3;
  --dim: #8b949e;
  --accent: #58a6ff;
  --green: #3fb950;
  --amber: #d29922;
  --red: #f85149;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 980px; margin: 0 auto; padding: 0 24px; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.small { font-size: 13px; }

/* ---------- header */
.top {
  position: sticky; top: 0; z-index: 20;
  background: rgba(8, 9, 13, .82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.mark { font-family: var(--mono); font-size: 14px; letter-spacing: .02em; }
.mark .dot { color: var(--accent); }
nav { display: flex; gap: 20px; }
nav a {
  color: var(--dim); text-decoration: none; font-size: 13px; font-family: var(--mono);
  transition: color .15s;
}
nav a:hover { color: var(--ink); }

/* ---------- hero */
.hero { padding: 88px 24px 56px; }
.eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: .06em;
  color: var(--dim); text-transform: uppercase; margin: 0 0 20px;
}
h1 {
  font-size: clamp(34px, 5.4vw, 58px); line-height: 1.06; letter-spacing: -.02em;
  font-weight: 650; margin: 0 0 24px;
}
.lede { font-size: 19px; color: #b9c2cc; max-width: 42em; margin: 0 0 40px; }
.lede strong { color: var(--ink); font-weight: 600; }

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line); margin: 0;
}
.stats > div { background: var(--panel); padding: 18px 20px; }
.stats dt {
  font-family: var(--mono); font-size: clamp(20px, 3vw, 26px);
  color: var(--accent); margin-bottom: 2px;
}
.stats dd { margin: 0; font-size: 12px; color: var(--dim); font-family: var(--mono); }

/* ---------- sections */
section { padding: 64px 24px; border-top: 1px solid var(--line); }
h2 {
  font-size: 13px; font-family: var(--mono); letter-spacing: .1em;
  text-transform: uppercase; color: var(--dim); font-weight: 500; margin: 0 0 18px;
}
h3 { font-size: 15px; margin: 0 0 6px; font-weight: 600; }
.sub { color: #b9c2cc; max-width: 44em; margin: 0 0 28px; }
.sub.tight { margin: 18px 0 0; font-size: 15px; }
.caption { color: var(--dim); font-size: 13px; margin: 14px 0 0; font-family: var(--mono); }

/* ---------- player */
.player {
  display: grid; grid-template-columns: 440px 1fr; gap: 0;
  border: 1px solid var(--line); background: var(--panel);
}
.stage { border-right: 1px solid var(--line); line-height: 0; }
.stage canvas { display: block; width: 100%; height: auto; }
.brain { padding: 16px 18px; display: flex; flex-direction: column; }
.brainhead {
  display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px;
}
#spikes { width: 100%; height: auto; background: #0a0d12; border: 1px solid var(--line); }
.lbl {
  font-family: var(--mono); font-size: 11px; letter-spacing: .08em;
  text-transform: uppercase; color: var(--dim);
}
.readout {
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px; margin: 16px 0 0;
}
.readout > div { display: flex; flex-direction: column; gap: 2px; }
.readout strong { font-size: 17px; font-weight: 500; }
.hint { color: var(--dim); font-size: 13px; margin: auto 0 0; padding-top: 16px; }

.controls { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; }
.eps { display: flex; gap: 8px; flex-wrap: wrap; }
.eps button {
  font-family: var(--mono); font-size: 12px; color: var(--dim);
  background: transparent; border: 1px solid var(--line);
  padding: 7px 12px; cursor: pointer; transition: all .15s;
}
.eps button:hover { color: var(--ink); border-color: #38414f; }
.eps button.on { color: var(--bg); background: var(--accent); border-color: var(--accent); }

.transport { display: flex; align-items: center; gap: 10px; flex: 1; min-width: 320px; }
.btn {
  font-family: var(--mono); font-size: 12px; color: var(--ink);
  background: var(--panel); border: 1px solid var(--line);
  padding: 7px 14px; cursor: pointer; transition: all .15s;
}
.btn:hover { border-color: #38414f; }
.btn.primary { background: var(--ink); color: var(--bg); border-color: var(--ink); }
#scrub {
  -webkit-appearance: none; appearance: none; flex: 1; height: 2px;
  background: var(--line); outline: none; cursor: pointer;
}
#scrub::-webkit-slider-thumb {
  -webkit-appearance: none; width: 12px; height: 12px; border-radius: 50%;
  background: var(--accent); cursor: pointer;
}
#scrub::-moz-range-thumb {
  width: 12px; height: 12px; border: 0; border-radius: 50%; background: var(--accent);
}

/* ---------- score */
.grid2 { display: grid; grid-template-columns: 1.1fr 1fr; gap: 32px; align-items: start; }
figure { margin: 0; }
figure img { width: 100%; height: auto; display: block; border: 1px solid var(--line); }
figcaption { color: var(--dim); font-size: 13px; margin-top: 10px; }
figure.wide { margin-bottom: 28px; }

table.scores { width: 100%; border-collapse: collapse; font-size: 14px; }
table.scores th {
  text-align: left; font-family: var(--mono); font-size: 11px; font-weight: 500;
  letter-spacing: .07em; text-transform: uppercase; color: var(--dim);
  padding: 0 10px 8px 0; border-bottom: 1px solid var(--line);
}
table.scores td { padding: 9px 10px 9px 0; border-bottom: 1px solid #141a23; font-family: var(--mono); font-size: 13px; }
table.scores td:first-child { font-family: inherit; font-size: 14px; }
table.scores tr.hl td { color: var(--green); }

.note { margin-top: 26px; display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.note p { margin: 0; color: #b9c2cc; font-size: 15px; }
.note strong { color: var(--ink); }

/* ---------- pipeline */
.pipe { list-style: none; counter-reset: p; padding: 0; margin: 0; display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.pipe li { background: var(--panel); padding: 22px 24px; counter-increment: p; position: relative; padding-left: 64px; }
.pipe li::before {
  content: counter(p, decimal-leading-zero);
  position: absolute; left: 24px; top: 22px;
  font-family: var(--mono); font-size: 12px; color: var(--accent);
}
.pipe p { margin: 0; color: #b9c2cc; font-size: 15px; max-width: 60em; }
.pipe .mono { color: var(--ink); font-size: 13px; }
.caveat {
  margin: 24px 0 0; padding: 18px 22px; border-left: 2px solid var(--amber);
  background: #12100a; color: #cdbfa3; font-size: 15px;
}
.caveat strong { color: var(--amber); }

/* ---------- limits */
.limits { margin: 0; padding-left: 20px; color: #b9c2cc; max-width: 52em; }
.limits li { margin-bottom: 14px; }
.limits strong { color: var(--ink); }

/* ---------- tools */
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid3 p { color: var(--dim); margin: 0; line-height: 1.9; }
.grid3 h3 { font-family: var(--mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--dim); font-weight: 500; }

/* ---------- footer */
footer { border-top: 1px solid var(--line); padding: 32px 0 56px; color: var(--dim); font-size: 14px; }
footer p { margin: 0 0 8px; max-width: 60em; }
footer a { color: var(--accent); text-decoration: none; }
footer a:hover { text-decoration: underline; }

@media (max-width: 860px) {
  .player { grid-template-columns: 1fr; }
  .stage { border-right: 0; border-bottom: 1px solid var(--line); }
  .grid2, .note, .grid3 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  nav { gap: 12px; }
  nav a { font-size: 12px; }
}

/* ---- live strip ---- */
.live-dot{width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:8px;
  vertical-align:middle;flex:0 0 auto}
.live-dot.on{background:var(--green);box-shadow:0 0 0 0 rgba(63,185,80,.55);animation:pulse 2s infinite}
.live-dot.waiting{background:var(--amber);animation:pulse 1.2s infinite}
.live-dot.off{background:var(--red)}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(63,185,80,.5)}
  70%{box-shadow:0 0 0 7px rgba(63,185,80,0)}100%{box-shadow:0 0 0 0 rgba(63,185,80,0)}}

.caption{display:flex;align-items:center;flex-wrap:wrap;gap:2px;margin:10px 0 0;
  font-size:13px;color:var(--dim);line-height:1.5}
.buf{margin-left:auto;padding-left:18px;font-size:12px;color:#4d5566;white-space:nowrap}
.buf::before{content:'\00b7';margin-right:8px;opacity:.45}
.sw{display:inline-block;width:7px;height:7px;border-radius:2px;margin-right:6px;vertical-align:1px}
.sw-l{background:var(--green)}.sw-r{background:var(--accent)}
.buf.warn{color:var(--amber)}

input[type=range][disabled]{pointer-events:none;opacity:.9}
input[type=range][disabled]::-webkit-slider-thumb{background:var(--dim)}