:root {
  --bg: #0b0f14; --panel: #121923; --panel2: #18212d; --line: #263547;
  --text: #e8eef5; --muted: #a3b3c6; --dim: #8fa3b8; --accent: #2dd4bf; --amber: #f5a623;
  --danger: #ff8a9b; --good: #5be08f; --focus: #7dd3fc; --red: #ff4d5e;
  --radius: 16px; --mono: ui-monospace, "SF Mono", Menlo, Consolas, "DejaVu Sans Mono", monospace;
}
* { box-sizing: border-box; }
html { color-scheme: dark; scroll-behavior: smooth; }
body {
  margin: 0; color: var(--text); font: 17px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(1100px 520px at 75% -8%, #16283a 0%, var(--bg) 62%) no-repeat, var(--bg);
}
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 8px; }
a { color: var(--accent); }
code { font-family: var(--mono); font-size: .88em; background: #0c131b; padding: 1px 6px; border-radius: 5px; }
.skip { position: absolute; left: -999px; top: 0; background: var(--accent); color: #04211d; padding: 8px 12px; z-index: 9; }
.skip:focus { left: 8px; top: 8px; }

/* header */
.top { display: flex; flex-wrap: wrap; gap: 8px 20px; align-items: center; justify-content: space-between;
  max-width: 1180px; margin: 0 auto; padding: 18px 20px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--text); }
.word { font: 800 1.3rem/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.word span { color: var(--accent); }
.onair { width: 12px; height: 12px; border-radius: 50%; background: #3a4656; box-shadow: 0 0 0 2px #1d2733; }
.onair.live { background: var(--red); box-shadow: 0 0 12px var(--red); animation: blink 1.6s ease-in-out infinite; }
nav { display: flex; flex-wrap: wrap; gap: 4px 18px; font-size: .92rem; }
nav a { color: var(--muted); text-decoration: none; padding: 4px 0; }
nav a:hover { color: var(--text); }

main { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* hero */
.hero { padding: 28px 0 22px; max-width: 820px; }
.kicker, .eyebrow, .label { font: 700 .74rem var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--muted); margin: 0 0 10px; }
.hero h1 { margin: 0 0 14px; font-size: clamp(2rem, 5.2vw, 3.4rem); line-height: 1.06; letter-spacing: -.02em; font-weight: 800; }
.hero h1 em { font-style: normal; color: var(--accent); }
.lede { margin: 0; color: var(--muted); font-size: 1.12rem; max-width: 64ch; }

/* stage */
.stage { display: grid; gap: 16px; padding-bottom: 8px; }
@media (min-width: 940px) { .stage { grid-template-columns: minmax(0, 1.75fr) minmax(280px, 1fr); align-items: start; } }
.deck, .board { background: linear-gradient(180deg, #141d29, var(--panel)); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px; min-width: 0; }
.deck { box-shadow: 0 24px 60px -30px rgba(45, 212, 191, .35); }
.deck-head { display: flex; gap: 16px; align-items: center; margin-bottom: 16px; }
.deck-head h2 { margin: 0; font-size: 1.3rem; line-height: 1.2; }
.eyebrow { color: var(--accent); margin-bottom: 4px; }
.hosts-line { margin: 4px 0 0; color: var(--dim); font-size: .85rem; }
.hosts { display: flex; flex: none; }
.avatar { width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center; font: 800 1.25rem var(--mono);
  color: #061513; border: 3px solid var(--panel); transition: transform .2s, box-shadow .2s; }
.avatar.ada { background: var(--accent); }
.avatar.rook { background: #c49a5a; margin-left: -6px; color: #1d1405; }
.avatar.speaking { transform: scale(1.1); box-shadow: 0 0 0 3px var(--bg), 0 0 0 5px currentColor, 0 0 24px rgba(45,212,191,.5); z-index: 1; }
.avatar.rook.speaking { box-shadow: 0 0 0 3px var(--bg), 0 0 0 5px #c49a5a, 0 0 24px rgba(196,154,90,.5); }

audio { width: 100%; }
.ui[hidden] { display: none; }
.wave { position: relative; height: 96px; cursor: pointer; border-radius: 10px; background: #0d141c; touch-action: none; }
.wave canvas { width: 100%; height: 100%; display: block; }
.times { display: flex; justify-content: space-between; font: 600 .8rem var(--mono); color: var(--dim); margin: 6px 2px 0; }
.transport { display: flex; justify-content: center; align-items: center; gap: 14px; margin: 10px 0 16px; }
.btn { font: 700 .9rem var(--mono); color: var(--text); background: var(--panel2); border: 1px solid var(--line);
  border-radius: 999px; min-height: 44px; min-width: 56px; padding: 0 14px; cursor: pointer; }
.btn:hover { border-color: #3a5068; }
.btn.play { width: 76px; height: 76px; border-radius: 50%; padding: 0; background: var(--accent); border: 0;
  display: grid; place-items: center; box-shadow: 0 10px 30px -8px rgba(45, 212, 191, .7); }
.btn.play svg { width: 34px; height: 34px; fill: #052420; }
.btn.play:hover { filter: brightness(1.08); }

.caption { min-height: 158px; border-left: 3px solid var(--accent); background: #0f1720; border-radius: 0 12px 12px 0; padding: 14px 18px; }
.caption.rook { border-left-color: #c49a5a; }
.who { margin: 0 0 4px; font: 800 .78rem var(--mono); letter-spacing: .12em; color: var(--accent); text-transform: uppercase; }
.caption.rook .who { color: #e0b878; }
.said { margin: 0; font-size: clamp(1.08rem, 2.3vw, 1.32rem); line-height: 1.45; }
.cites { margin: 10px 0 0; display: flex; flex-wrap: wrap; gap: 6px; }
.cite { font: 700 .74rem var(--mono); color: var(--muted); background: var(--panel2); border: 1px solid var(--line);
  border-radius: 999px; padding: 2px 9px; text-decoration: none; }
.cite:hover { color: var(--text); border-color: var(--accent); }

/* board */
.label span { text-transform: none; letter-spacing: 0; color: var(--dim); font-weight: 500; }
.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.tile { background: var(--panel2); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; }
.tile b { display: block; font: 800 2.1rem/1 var(--mono); }
.tile span { display: block; margin-top: 6px; color: var(--muted); font-size: .86rem; line-height: 1.3; }
.tile.bad b { color: var(--danger); } .tile.warn b { color: var(--amber); } .tile.good b { color: var(--good); }
.gate-ok { margin: 14px 0 0; font: 600 .82rem var(--mono); color: var(--good); }

/* bands */
.band { margin: 22px 0; padding: 22px; background: rgba(18, 25, 35, .6); border: 1px solid var(--line); border-radius: var(--radius); }
.band h2:not(.label) { margin: 0 0 10px; font-size: 1.45rem; line-height: 1.2; }
.band p { color: var(--muted); max-width: 62ch; }
.small { font-size: .9rem; }
.transcript, .sources { margin: 0; padding: 0; list-style: none; display: grid; gap: 6px; }
.transcript button { all: unset; box-sizing: border-box; width: 100%; display: grid; grid-template-columns: 52px 54px 1fr;
  gap: 10px; padding: 10px 12px; border-radius: 10px; cursor: pointer; color: var(--muted); }
.transcript button:hover { background: var(--panel2); color: var(--text); }
.transcript button:focus-visible { outline: 3px solid var(--focus); }
.transcript .ts { font: 600 .8rem/1.9 var(--mono); color: var(--dim); }
.transcript .h { font: 800 .74rem/2 var(--mono); letter-spacing: .1em; color: var(--accent); }
.transcript .h.rook { color: #e0b878; }
.transcript li.now button { background: #12302d; color: var(--text); box-shadow: inset 3px 0 0 var(--accent); }
.transcript li.now.rook button { background: #2a2214; box-shadow: inset 3px 0 0 #c49a5a; }
.transcript sup { font: 700 .7rem var(--mono); color: var(--dim); margin-left: 4px; }
@media (max-width: 560px) { .transcript button { grid-template-columns: 40px 1fr; gap: 0 10px; } .transcript .h { grid-column: 2; line-height: 1.2; } .transcript .t { grid-column: 2; } }

.split { display: grid; gap: 18px; }
@media (min-width: 900px) { .split { grid-template-columns: 1fr 1.15fr; align-items: center; } }
.term { margin: 0; background: #070a0e; border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; overflow-x: auto; }
.term pre { margin: 0; font: .86rem/1.55 var(--mono); color: #cfd9e4; }
.term b { color: var(--accent); font-weight: 700; }
.term mark { background: rgba(255, 77, 94, .22); color: #ffc2ca; border-bottom: 2px solid var(--red); padding: 0 2px; }
.term .dim { color: var(--dim); } .term .bad { color: var(--danger); font-weight: 700; } .term .ok { color: var(--good); }

.steps { margin: 6px 0 18px; padding: 0; list-style: none; display: grid; gap: 10px; counter-reset: s; }
@media (min-width: 900px) { .steps { grid-template-columns: repeat(5, 1fr); } }
.steps li { counter-increment: s; background: var(--panel2); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; color: var(--muted); font-size: .92rem; }
.steps li::before { content: counter(s, decimal-leading-zero); display: block; font: 800 .8rem var(--mono); color: var(--accent); margin-bottom: 4px; }
.steps b { color: var(--text); }
.diagram { margin: 0; background: #0d141c; border: 1px solid var(--line); border-radius: 12px; padding: 12px; }
.diagram img { display: block; width: 100%; height: auto; }
.diagram a { display: block; }
.diagram figcaption { color: var(--muted); font-size: .85rem; padding: 8px 4px 0; }

.sources li { display: grid; grid-template-columns: 36px 1fr; gap: 8px; padding: 8px 10px; border-radius: 10px; }
.sources li:target, .sources li.flash { background: #12302d; }
.sources .n { font: 800 .85rem/1.6 var(--mono); color: var(--accent); }
.sources .src { color: var(--text); font-weight: 600; }
.sources .d { display: block; color: var(--muted); font-size: .88rem; word-break: break-word; }

.foot { max-width: 1180px; margin: 0 auto; padding: 8px 20px 40px; color: var(--dim); font-size: .86rem; }
.foot b { color: var(--muted); }

@keyframes blink { 50% { opacity: .35; } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .onair.live { animation: none; }
  .avatar { transition: none; }
}