:root{
  --bg0:#070a12;
  --bg1:#0b1022;
  --ink:#eaf0ff;
  --muted:rgba(234,240,255,.72);
  --muted2:rgba(234,240,255,.55);
  --line:rgba(234,240,255,.14);
  --card:rgba(14,18,35,.68);
  --card2:rgba(20,26,48,.62);
  --accent:#8b5cf6;
  --accent2:#22c55e;
  --accent3:#38bdf8;
  --shadow:0 18px 60px rgba(0,0,0,.45);
  --radius:18px;
}

*{box-sizing:border-box}
html,body{height:100%}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:radial-gradient(1000px 800px at 10% 10%, rgba(139,92,246,.22), transparent 55%),
             radial-gradient(900px 700px at 90% 20%, rgba(56,189,248,.18), transparent 58%),
             linear-gradient(180deg, var(--bg0), var(--bg1));
  overflow-x:hidden;
}

.bg{position:fixed; inset:0; pointer-events:none; z-index:-1}
.bg__grid{
  position:absolute; inset:-30vh -10vw;
  background-image:
    linear-gradient(to right, rgba(234,240,255,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(234,240,255,.05) 1px, transparent 1px);
  background-size:48px 48px;
  transform:rotate(-8deg);
  opacity:.35;
  mask-image:radial-gradient(circle at 50% 30%, black 10%, transparent 65%);
}
.bg__orb{position:absolute; width:56vmin; height:56vmin; border-radius:999px; filter:blur(40px); opacity:.55}
.bg__orb--a{left:-10vmin; top:-8vmin; background:radial-gradient(circle at 30% 30%, rgba(139,92,246,.95), transparent 60%)}
.bg__orb--b{right:-14vmin; top:10vmin; background:radial-gradient(circle at 40% 35%, rgba(56,189,248,.85), transparent 62%)}

/* Search */
.search-container{position:fixed;top:70px;left:50%;transform:translateX(-50%);z-index:900;width:100%;max-width:400px;padding:0 20px}
.search-input{width:100%;padding:10px 16px;border:1px solid rgba(255,255,255,0.15);border-radius:20px;background:rgba(15,23,42,0.9);backdrop-filter:blur(10px);color:#fff;font-size:0.9rem;outline:none;transition:all 0.2s}
.search-input::placeholder{color:#64748b}
.search-input:focus{border-color:rgba(139,92,246,0.5);box-shadow:0 0 20px rgba(139,92,246,0.2)}
.search-results{margin-top:8px;background:rgba(15,23,42,0.95);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,0.1);border-radius:12px;max-height:300px;overflow-y:auto;display:none}
.search-results.show{display:block}
.search-result{padding:12px 16px;cursor:pointer;border-bottom:1px solid rgba(255,255,255,0.05);transition:background 0.2s}
.search-result:last-child{border-bottom:none}
.search-result:hover{background:rgba(139,92,246,0.15)}
.search-result__chapter{font-size:0.75rem;color:#8b5cf6;margin-bottom:4px}
.search-result__text{font-size:0.85rem;color:#cbd5e1}
.search-result__text mark{background:rgba(139,92,246,0.4);color:#fff;padding:0 2px;border-radius:2px}
.search-no-results{padding:16px;text-align:center;color:#64748b;font-size:0.85rem}

.topbar{
  position:fixed; left:0; right:0; top:0;
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 18px;
  z-index:10;
  background:linear-gradient(180deg, rgba(7,10,18,.88), rgba(7,10,18,.55));
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar__left{display:flex; gap:12px; align-items:center}
.mark{width:12px; height:12px; border-radius:4px; background:linear-gradient(135deg, var(--accent), var(--accent3)); box-shadow:0 0 0 6px rgba(139,92,246,.12)}
.topbar__title{font-weight:700; letter-spacing:-0.02em}
.topbar__subtitle{font-size:12px; color:var(--muted2)}

.progress{width:min(300px, 36vw); height:10px; border-radius:999px; background:rgba(234,240,255,.08); overflow:hidden; border:1px solid rgba(234,240,255,.10)}
.progress__bar{height:100%; width:0%; background:linear-gradient(90deg, rgba(139,92,246,.95), rgba(56,189,248,.95));}

.dots{
  position:fixed; right:14px; top:50%; transform:translateY(-50%);
  display:flex; flex-direction:column; gap:10px;
  z-index:10;
}
.dots__dot{
  width:12px; height:12px; border-radius:999px;
  border:1px solid rgba(234,240,255,.28);
  background:rgba(234,240,255,.10);
  cursor:pointer;
  transition:transform .15s ease, background .15s ease, border-color .15s ease;
}
.dots__dot:hover{transform:scale(1.15); border-color:rgba(234,240,255,.55)}
.dots__dot.is-active{background:linear-gradient(135deg, rgba(139,92,246,.95), rgba(56,189,248,.95)); border-color:transparent}

main{padding-top:76px}

.hero{
  min-height:calc(100vh - 76px);
  display:grid;
  place-items:center;
  padding:54px 18px 34px;
}
.hero__content{width:min(1000px, 92vw)}
.kicker{color:var(--muted2); text-transform:uppercase; letter-spacing:.12em; font-size:12px; margin:0 0 12px}
.hero__h1{font-size:clamp(34px, 5.2vw, 64px); line-height:1.05; margin:0 0 14px; letter-spacing:-0.04em}
.hero__h1Accent{display:inline-block; background:linear-gradient(90deg, var(--accent), var(--accent3)); -webkit-background-clip:text; background-clip:text; color:transparent}
.hero__lead{color:var(--muted); font-size:16px; max-width:64ch; margin:0 0 20px}
.hero__ctaRow{display:flex; gap:10px; flex-wrap:wrap; align-items:center}

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  height:42px; padding:0 14px;
  border-radius:999px;
  border:1px solid rgba(234,240,255,.16);
  background:linear-gradient(135deg, rgba(139,92,246,.85), rgba(56,189,248,.70));
  color:var(--ink);
  text-decoration:none;
  font-weight:600;
  cursor:pointer;
  box-shadow:0 10px 30px rgba(0,0,0,.25);
}
.btn:hover{filter:brightness(1.05)}
.btn--ghost{background:rgba(234,240,255,.06); box-shadow:none}

.hero__hint{display:flex; align-items:center; gap:10px; margin-top:28px; color:var(--muted2)}
.mouse{width:28px; height:44px; border-radius:999px; border:1px solid rgba(234,240,255,.22); display:grid; place-items:center}
.mouse__wheel{width:4px; height:10px; border-radius:999px; background:rgba(234,240,255,.55); animation:wheel 1.5s infinite}
@keyframes wheel{0%{transform:translateY(-6px); opacity:.25} 40%{opacity:1} 100%{transform:translateY(7px); opacity:.25}}

.pin{padding:24px 18px 64px}
.pin__rail{width:min(1280px, 94vw); margin:0 auto; display:grid; grid-template-columns: 0.9fr 1.1fr; gap:18px}

.pin__sticky{
  position:sticky; top:92px;
  height:calc(100vh - 120px);
  border-radius:var(--radius);
  background:linear-gradient(180deg, rgba(14,18,35,.78), rgba(14,18,35,.52));
  border:1px solid rgba(234,240,255,.14);
  box-shadow:var(--shadow);
  padding:18px 18px 16px;
  overflow:auto;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.sticky__badge{display:inline-flex; align-items:center; gap:8px; font-size:12px; letter-spacing:.12em; text-transform:uppercase; color:rgba(234,240,255,.75)}
.sticky__badge::before{content:""; width:8px; height:8px; border-radius:999px; background:linear-gradient(135deg, var(--accent), var(--accent3))}
.sticky__title{margin:10px 0 10px; font-size:28px; letter-spacing:-0.03em}
.sticky__text{margin:0; color:var(--muted); line-height:1.55}
.sticky__meta{display:flex; gap:10px; margin-top:14px; flex-wrap:wrap}
.chip{font-size:12px; padding:8px 10px; border-radius:999px; border:1px solid rgba(234,240,255,.14); background:rgba(234,240,255,.06)}
.chip--muted{color:var(--muted2)}

.pin__right{display:block}

.pin__content{display:flex; flex-direction:column; gap:14px; padding-bottom:120vh}

.pin__video{
  margin-top:2px;
  border-radius:14px;
  border:1px solid rgba(234,240,255,.12);
  background:linear-gradient(180deg, rgba(20,26,48,.55), rgba(14,18,35,.40));
  box-shadow:0 10px 35px rgba(0,0,0,.18);
  padding:14px;
}
.video__head{display:flex; justify-content:space-between; align-items:center; gap:10px; margin-bottom:10px}
.video__label{font-size:12px; letter-spacing:.12em; text-transform:uppercase; color:rgba(234,240,255,.75)}
.video__time{font-size:12px; color:var(--muted2); padding:6px 10px; border-radius:999px; border:1px solid rgba(234,240,255,.12); background:rgba(234,240,255,.06)}
.video__frame{aspect-ratio:16/9; width:100%; border-radius:14px; overflow:hidden; border:1px solid rgba(234,240,255,.12); background:rgba(0,0,0,.25)}
.video__frame iframe{width:100%; height:100%; border:0}
.video__hint{margin:10px 0 0; color:var(--muted2); font-size:12px}
.card{
  border-radius:var(--radius);
  border:1px solid rgba(234,240,255,.12);
  background:linear-gradient(180deg, rgba(20,26,48,.62), rgba(14,18,35,.56));
  box-shadow:0 10px 35px rgba(0,0,0,.25);
  padding:16px;
  transform:translateY(14px);
  opacity:.72;
  transition:transform .35s ease, opacity .35s ease, border-color .25s ease;
}
.card.is-active{transform:translateY(0); opacity:1; border-color:rgba(56,189,248,.38)}
.card__head{display:flex; align-items:flex-start; justify-content:space-between; gap:12px}
.card__kicker{color:var(--muted2); font-size:12px; text-transform:uppercase; letter-spacing:.12em; margin:0 0 8px}
.card__quote{margin:0; font-size:18px; line-height:1.45; letter-spacing:-0.01em}
.card__quoteMark{color:rgba(234,240,255,.18); font-size:44px; line-height:1; margin-right:8px}
.card__meta{display:flex; gap:8px; flex-wrap:wrap; margin-top:12px}
.card__tag{font-size:12px; padding:7px 10px; border-radius:999px; background:rgba(139,92,246,.14); border:1px solid rgba(139,92,246,.28)}
.card__time{font-size:12px; padding:7px 10px; border-radius:999px; background:rgba(234,240,255,.06); border:1px solid rgba(234,240,255,.12); color:var(--muted2)}

.outro{padding:52px 18px 72px; display:grid; place-items:center}
.outro__card{width:min(960px, 92vw); border-radius:var(--radius); border:1px solid rgba(234,240,255,.12); background:linear-gradient(180deg, rgba(20,26,48,.62), rgba(14,18,35,.56)); box-shadow:var(--shadow); padding:20px}
.outro__card h2{margin:4px 0 10px}
.outro__card p{margin:0 0 14px; color:var(--muted); line-height:1.6}
.outro__row{display:flex; gap:10px; flex-wrap:wrap}

.footer{padding:16px 18px 26px; color:var(--muted2); display:flex; justify-content:center; gap:10px; flex-wrap:wrap}
.footer__sep{opacity:.4}

/* Focus mode removed */

@media (max-width: 940px){
  .dots{display:none}
  .pin__rail{grid-template-columns:1fr;}
  .pin__sticky{height:auto; position:relative; top:auto}
}

/* Audio player */
.card__audio{margin-top:10px;width:100%}
.card__audio audio{width:100%;height:36px;border-radius:8px;opacity:0.8;transition:opacity .2s}
.card__audio audio:hover{opacity:1}