:root{--bg:#0b1220;--card:#121a2b;--muted:#8fa1c7;--text:#eef3ff;--line:#24314d;--primary:#5b8cff;--accent:#26c6a5;--danger:#ff5f75;--lightbg:#f4f7fb;--lightcard:#fff;--lighttext:#111827}
*{box-sizing:border-box}body{margin:0;font:15px/1.45 system-ui,sans-serif;background:linear-gradient(180deg,#0b1220,#11192d);color:var(--text)}a{text-decoration:none;color:inherit}.container{max-width:1180px;margin:0 auto;padding:16px 16px 88px}.topbar{position:sticky;top:0;z-index:10;display:flex;justify-content:space-between;align-items:center;padding:14px 16px;background:rgba(11,18,32,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.brand{font-weight:800}.nav{display:flex;gap:14px}.card{background:rgba(18,26,43,.92);border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 10px 30px rgba(0,0,0,.22)}.hero{display:grid;grid-template-columns:1.35fr .9fr;gap:18px;align-items:center}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 16px;border-radius:14px;border:1px solid var(--line);background:#16223b;color:#fff;cursor:pointer}.btn.primary{background:var(--primary)}.btn.accent{background:var(--accent);color:#07131e}.btn.danger{background:var(--danger)}.stats-grid,.grid{display:grid;gap:14px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.stat{padding:18px;border-radius:16px;background:#0d1528;border:1px solid var(--line)}.stat b{font-size:28px;display:block}.form{max-width:560px;margin:0 auto}.form label{display:block;margin-bottom:12px}.form input,.form select,.form textarea{width:100%;margin-top:6px;padding:12px 14px;border-radius:12px;background:#0d1528;border:1px solid var(--line);color:#fff}.check{display:flex;gap:8px;align-items:center}.check input{width:auto;margin:0}.alert{padding:12px 14px;border-radius:14px;margin-bottom:12px}.alert.error{background:#3b1520}.alert.success{background:#133425}.chat-layout{display:grid;grid-template-columns:1.4fr .8fr;gap:16px}.video-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.video-box{position:relative;aspect-ratio:9/16;background:#000;border-radius:16px;overflow:hidden}.video-box video{width:100%;height:100%;object-fit:cover}.video-box span{position:absolute;left:10px;bottom:10px;padding:6px 10px;background:rgba(0,0,0,.45);border-radius:999px}.sidebar{display:flex;flex-direction:column;gap:10px}.subtitles{height:340px;overflow:auto;padding:12px;border-radius:14px;background:#0d1528;border:1px solid var(--line)}.subtitle-item{padding:8px 10px;border-bottom:1px solid var(--line)}.list{display:grid;gap:10px}.list-item{display:flex;justify-content:space-between;padding:12px;border-radius:14px;background:#0d1528}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{padding:10px;border-bottom:1px solid var(--line);text-align:left}.bottom-nav{position:fixed;left:12px;right:12px;bottom:10px;display:none;grid-template-columns:repeat(4,1fr);gap:8px;padding:8px;background:rgba(18,26,43,.94);border:1px solid var(--line);border-radius:18px;backdrop-filter:blur(10px)}.bottom-nav a{display:flex;flex-direction:column;align-items:center;font-size:12px;padding:8px}.prose{max-width:820px;margin:0 auto}.muted{color:var(--muted)}@media(max-width:900px){.hero,.chat-layout,.grid.two,.grid.three,.grid.four{grid-template-columns:1fr}.desktop-nav{display:none}.bottom-nav{display:grid}.video-grid{grid-template-columns:1fr}.container{padding-bottom:100px}}

.actions-stack{display:grid;gap:10px}.hint-box{padding:12px 14px;border-radius:14px;background:#0d1528;border:1px solid var(--line);color:var(--muted)}#chatStatus{margin:0 0 6px;color:var(--muted)}.subtitle-item.self{background:rgba(91,140,255,.08)}.subtitle-item.peer{background:rgba(38,198,165,.08)}.subtitle-item.system{color:var(--muted)}