:root{ --bg:#000; --fg:#fff; --accent:#ff8735; --muted:#d9d9d9; --card:#0b0b0b; }
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,'Helvetica Neue',Arial,'Noto Sans',sans-serif;line-height:1.5}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.header{position:sticky;top:0;background:rgba(0,0,0,.9);backdrop-filter:saturate(150%) blur(6px);border-bottom:1px solid #111;z-index:50}
.nav{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0}
.brand{display:flex;gap:10px;align-items:center;font-weight:700;letter-spacing:.3px}
.brand img{width:36px;height:36px;border-radius:50%;}
.nav ul{list-style:none;margin:0;padding:0;display:flex;gap:14px;flex-wrap:wrap}
.nav a{padding:8px 10px;border-radius:999px}
.nav a:hover{background:#111}
.btn{display:inline-block;padding:10px 16px;border-radius:10px;background:var(--accent);color:#000;font-weight:700;border:0}
.btn-outline{background:transparent;border:1px solid var(--accent);color:var(--accent)}
.btn:hover{filter:brightness(1.05)}
.hero{position:relative;isolation:isolate}
.hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(1200px 400px at 50% 0%,rgba(255,135,53,.25),transparent 70%),
             linear-gradient(180deg,rgba(255,135,53,.08),transparent 50%);
  z-index:-1
}
.hero .wrap{display:grid;gap:18px;padding:42px 0 28px}
.title{font-size: clamp(28px, 5vw, 56px);line-height:1.05;margin:0}
.subtitle{color:var(--muted)}
.grid{display:grid;gap:16px}
.cards{display:grid;gap:16px;grid-template-columns:1fr}
.card{background:var(--card);padding:16px;border:1px solid #151515;border-radius:14px}
.card h3{margin:0 0 8px}
.badge{display:inline-block;padding:3px 8px;border-radius:6px;border:1px solid #333;background:#0f0f0f;color:var(--muted);font-size:12px}
.two-col{display:grid;gap:18px}
.schedule{border-left:3px solid var(--accent);padding-left:12px}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between}
.kv{display:grid;grid-template-columns:1fr;gap:6px}
.kv div{display:flex;gap:8px;align-items:center}
footer{border-top:1px solid #111;margin-top:36px}
.footer-inner{display:grid;gap:8px;padding:18px 0;color:#8a8a8a}
.section-title{font-size:22px;margin:10px 0 6px}
ul.inline{list-style:none;padding:0;margin:0;display:flex;gap:10px;flex-wrap:wrap}
.sponsors{display:flex;gap:12px;flex-wrap:wrap;padding:10px 0}
.sponsor{border:1px dashed #333;padding:12px 16px;border-radius:10px;color:#bbb;font-size:14px}
.table{width:100%;border-collapse:collapse}
.table th,.table td{border-bottom:1px solid #1a1a1a;padding:10px 8px;text-align:left;font-size:14px}
@media (min-width:740px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .two-col{grid-template-columns:1.2fr .8fr}
}
@media (min-width:1000px){
  .cards{grid-template-columns:repeat(3,1fr)}
}


.hero{
  background: url('assets/skyline.jpg') center/cover no-repeat;
  border-bottom: 1px solid #111;
}
.hero .wrap{ background: linear-gradient(180deg, rgba(0,0,0,.55), rgba(0,0,0,.8)); padding: 60px 0 36px; }

.talks{display:grid;gap:14px}
.talk{background:var(--card);border:1px solid #151515;border-radius:14px;padding:12px}
.talk-row{display:grid;grid-template-columns:88px 140px 72px 1fr;gap:10px;align-items:center}
.talk-row .time{font-weight:700}
.talk-row .track{color:var(--muted)}
.talk-row img{width:64px;height:64px;object-fit:cover;border-radius:8px;border:1px solid #222;background:#0c0c0c}

@media (max-width:700px){
  .talk-row{grid-template-columns:64px 1fr}
  .talk-row .time{grid-column:1/2}
  .talk-row .track{display:none}
  .talk-row img{grid-column:1/2}
  .talk-row .title{grid-column:2/3}
  
}

.talks{display:grid;gap:18px}
.talk-slot{background:var(--card);border:1px solid #151515;border-radius:14px;padding:12px}
.talk-head{display:grid;grid-template-columns:80px 140px 80px 1fr auto;gap:12px;align-items:center}
.talk-head .time{font-weight:700}
.talk-head .track{color:var(--muted)}
.talk-head img{width:64px;height:64px;object-fit:cover;border-radius:6px;background:#111}
.talk-head .title{font-size:16px;font-weight:600}

@media(max-width:720px){
  .talk-head{grid-template-columns:64px 1fr auto}
  .talk-head .time,.talk-head .track{display:none}
}

.talk-desc{grid-column:1/-1;margin-top:6px;color:#c8c8c8}