/* PlayPlain — Netflix-style chrome, teal-on-ink palette */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#141414;--bg2:#181818;--card:#181818;--card2:#232323;
  --text:#ffffff;--muted:#b3b3b3;--line:#2f2f2f;
  --accent:#c9a227;--accent2:#ddb93c;--glow:rgba(201,162,39,0.4);
  --grad:linear-gradient(115deg,#c9a227,#8f7418);
}
html{scroll-behavior:smooth}
body{font-family:'Netflix Sans','Helvetica Neue',Helvetica,'Segoe UI',Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden}
a{color:inherit;text-decoration:none}
::selection{background:var(--accent);color:#fff}

/* Nav */
nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:14px 4%;background:linear-gradient(to bottom,rgba(0,0,0,0.8),rgba(0,0,0,0));transition:background .3s}
nav.solid{background:rgba(20,20,20,0.98);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.logo{font-weight:900;font-size:22px;letter-spacing:0.5px;text-transform:uppercase;color:var(--accent)}
.logo .p1{color:var(--accent)}
.logo .p2{color:var(--accent)}
.nav-links{display:flex;gap:26px;align-items:center}
.nav-links a{font-size:14px;color:var(--muted);transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-badge{font-size:11px;padding:4px 12px;border:1px solid var(--line);border-radius:99px;color:var(--accent);letter-spacing:.06em;text-transform:uppercase}

/* Hero billboard */
.billboard{position:relative;min-height:82vh;display:flex;align-items:center;padding:120px 4% 60px;overflow:hidden}
.billboard-bg{position:absolute;inset:0;z-index:-1}
.billboard-fade{position:absolute;inset:0;background:linear-gradient(to right,rgba(20,20,20,0.95) 22%,rgba(20,20,20,0.35) 60%,rgba(20,20,20,0.7)),linear-gradient(to top,var(--bg) 0%,transparent 40%)}
.bb-content{max-width:640px}
.bb-tag{font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);margin-bottom:14px;font-weight:600}
.bb-title{font-size:clamp(40px,6.5vw,76px);font-weight:800;line-height:1.02;letter-spacing:-0.02em;margin-bottom:18px}
.bb-desc{font-size:17px;color:var(--muted);max-width:520px;margin-bottom:28px}
.bb-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;padding:13px 30px;border-radius:8px;font-size:16px;font-weight:700;cursor:pointer;border:none;transition:all .2s;font-family:inherit}
.btn-play{background:#ffffff;color:#141414}
.btn-play:hover{background:rgba(255,255,255,0.8)}
.btn-ghost{background:rgba(109,109,110,0.7);color:var(--text);backdrop-filter:blur(8px)}
.btn-ghost:hover{background:rgba(109,109,110,0.5)}

/* Rows */
.rows{padding:10px 0 70px}
.row{margin-bottom:44px}
.row-title{font-size:20px;font-weight:700;padding:0 4%;margin-bottom:14px;display:flex;align-items:baseline;gap:12px}
.row-title small{font-size:12px;color:var(--muted);font-weight:400;letter-spacing:.04em}
.row-scroll{display:flex;gap:14px;overflow-x:auto;padding:6px 4% 22px;scrollbar-width:thin;scrollbar-color:var(--line) transparent}
.row-scroll::-webkit-scrollbar{height:8px}
.row-scroll::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}

/* Cards */
.tile{position:relative;flex:0 0 300px;height:170px;border-radius:4px;overflow:hidden;cursor:pointer;transition:transform .28s cubic-bezier(.2,.9,.3,1.2),box-shadow .28s;background:var(--card)}
.tile:hover{transform:scale(1.07);box-shadow:0 14px 44px rgba(0,0,0,0.55),0 0 0 1px var(--line);z-index:5}
.tile-art{position:absolute;inset:0}
.tile-shade{position:absolute;inset:0;background:linear-gradient(to top,rgba(5,7,11,0.88) 8%,rgba(5,7,11,0.12) 55%)}
.tile-meta{position:absolute;left:16px;right:16px;bottom:12px}
.tile-kicker{font-size:10px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);font-weight:700}
.tile-name{font-size:19px;font-weight:800;letter-spacing:-0.01em;line-height:1.15}
.tile-sub{font-size:12px;color:var(--muted);margin-top:2px}
.tile.soon{cursor:default;opacity:.55}
.tile.soon:hover{transform:none;box-shadow:none}
.tile .play-hint{position:absolute;top:12px;right:12px;width:34px;height:34px;border-radius:50%;background:rgba(4,17,14,0.55);border:1.5px solid var(--accent);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:13px;opacity:0;transition:opacity .2s}
.tile:hover .play-hint{opacity:1}

/* Concept page hero */
.c-hero{position:relative;padding:140px 4% 40px;overflow:hidden}
.c-hero-bg{position:absolute;inset:0;z-index:-1;opacity:.55}
.c-hero-fade{position:absolute;inset:0;background:linear-gradient(to top,var(--bg) 4%,rgba(20,20,20,.55)),radial-gradient(ellipse at 20% 0%,transparent 30%,var(--bg) 90%)}
.c-kicker{font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:10px}
.c-title{font-size:clamp(36px,5.6vw,64px);font-weight:800;letter-spacing:-0.02em;line-height:1.04;margin-bottom:14px;max-width:820px}
.c-lede{font-size:17px;color:var(--muted);max-width:660px}
.c-meta{display:flex;gap:16px;margin-top:18px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.c-meta b{color:var(--accent)}

/* Episode (interactive) sections */
.episodes{max-width:980px;margin:0 auto;padding:20px 4% 90px}
.ep{background:var(--bg2);border:1px solid var(--line);border-radius:16px;margin-top:34px;overflow:hidden}
.ep-head{padding:24px 28px 6px;display:flex;align-items:baseline;gap:14px}
.ep-num{font-size:13px;font-weight:800;color:var(--accent);letter-spacing:.1em;white-space:nowrap}
.ep-title{font-size:24px;font-weight:800;letter-spacing:-0.01em}
.ep-body{padding:6px 28px 26px}
.ep-desc{color:var(--muted);font-size:15px;margin-bottom:18px;max-width:720px}
.ep-desc b,.ep-desc strong{color:var(--text)}
.stage{background:#0f0f0f;border:1px solid var(--line);border-radius:12px;padding:18px;overflow:hidden}
canvas{display:block;max-width:100%;border-radius:8px}
.controls{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-top:14px}
.controls label{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}
input[type=range]{accent-color:var(--accent);width:170px}
select,input[type=text]{background:var(--card);border:1px solid var(--line);color:var(--text);border-radius:8px;padding:9px 12px;font-size:14px;font-family:inherit;outline:none}
select:focus,input[type=text]:focus{border-color:var(--accent)}
.chip-btn{background:var(--card);border:1px solid var(--line);color:var(--text);border-radius:8px;padding:9px 18px;font-size:14px;font-weight:600;cursor:pointer;transition:all .15s;font-family:inherit}
.chip-btn:hover{border-color:var(--accent);color:var(--accent)}
.chip-btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.chip-btn.primary:hover{background:var(--accent2);color:#fff}
.chip-btn.on{background:var(--accent);color:#fff;border-color:var(--accent)}
.readout{font-family:ui-monospace,'SF Mono',monospace;font-size:13px;color:var(--accent)}
.note{font-size:12px;color:var(--muted);margin-top:12px;font-style:italic}
.takeaway{margin-top:16px;padding:14px 18px;background:rgba(201,162,39,0.07);border-left:3px solid var(--accent);border-radius:0 8px 8px 0;font-size:14px;color:var(--text)}
.takeaway b{color:var(--accent)}

/* token chips */
.tok-wrap{display:flex;flex-wrap:wrap;gap:6px;min-height:44px;padding:4px 0}
.tok{padding:5px 9px;border-radius:6px;font-family:ui-monospace,'SF Mono',monospace;font-size:14px;color:#04110e;font-weight:600;animation:pop .18s ease}
@keyframes pop{from{transform:scale(.7);opacity:0}to{transform:scale(1);opacity:1}}

/* prob bars */
.bars{display:flex;flex-direction:column;gap:8px;margin-top:10px}
.bar-row{display:flex;align-items:center;gap:10px}
.bar-label{font-family:ui-monospace,'SF Mono',monospace;font-size:13px;width:110px;text-align:right;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bar-track{flex:1;height:22px;background:var(--card);border-radius:5px;overflow:hidden}
.bar-fill{height:100%;background:var(--grad);border-radius:5px;transition:width .35s ease;display:flex;align-items:center;justify-content:flex-end;padding-right:8px;font-size:11px;color:#fff;font-weight:700;min-width:2px}
.gen-text{font-family:ui-monospace,'SF Mono',monospace;font-size:15px;line-height:1.9;background:var(--card);border:1px solid var(--line);border-radius:8px;padding:14px 16px;min-height:76px;margin-bottom:12px;word-break:break-word}
.gen-text .cursor{display:inline-block;width:9px;height:18px;background:var(--accent);vertical-align:text-bottom;animation:blink 1s step-end infinite}
@keyframes blink{50%{opacity:0}}
.gen-text .fresh{color:var(--accent)}

/* next/related strip */
.next-strip{max-width:980px;margin:0 auto;padding:0 4% 80px}
.next-title{font-size:18px;font-weight:700;margin-bottom:14px}
.next-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}

footer{border-top:1px solid var(--line);padding:34px 4%;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
footer p{font-size:13px;color:var(--muted)}
footer a{color:var(--accent)}

@media(max-width:640px){
  .billboard{min-height:66vh;padding-top:100px}
  .tile{flex:0 0 240px;height:140px}
  .ep-head{padding:20px 18px 4px;flex-direction:column;gap:2px}
  .ep-body{padding:6px 18px 20px}
  .bar-label{width:80px;font-size:12px}
  .nav-links a.hide-m{display:none}
}

/* Good/Bad case chips + loop highlight */
.case-row{display:flex;gap:8px;margin:-6px 0 14px}
.case{font-size:11px;padding:3px 12px;border-radius:4px;font-weight:700;letter-spacing:.04em;text-transform:uppercase}
.case-good{background:rgba(70,211,105,0.1);color:#46d369;border:1px solid rgba(70,211,105,0.3)}
.case-bad{background:rgba(224,93,93,0.1);color:#e05d5d;border:1px solid rgba(224,93,93,0.3)}
.gen-text .loop{color:#e05d5d;text-decoration:underline wavy rgba(224,93,93,0.6)}