:root{--bg:#0f1720;--panel:#17212b;--line:#243442;--txt:#e7edf3;--muted:#9fb1c1;--accent:#2db7a6;}
*{box-sizing:border-box;}
html,body{margin:0;height:100%;background:var(--bg);color:var(--txt);font-family:system-ui,Segoe UI,Roboto,sans-serif;}

/* Entrada */
.prejoin{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:var(--bg);z-index:30;padding:16px;}
.prejoin .card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:26px;max-width:380px;width:100%;text-align:center;}
.brand{display:flex;align-items:center;gap:10px;justify-content:center;margin-bottom:8px;}
.brand .tri{height:42px;width:auto;display:block;}
.brand .word{font-size:28px;font-weight:800;color:#fff;letter-spacing:-.5px;}
.brand .dot{color:#FF6B35;}
.brand.sm{margin:0;gap:7px;justify-content:flex-start;}
.brand.sm .tri{height:24px;}
.brand.sm .word{font-size:19px;}
.brand-sub{font-weight:600;font-size:14px;color:var(--muted);margin-bottom:8px;}
.prejoin p{color:var(--muted);line-height:1.5;}
.inp{width:100%;background:#0c131a;border:1px solid var(--line);color:var(--txt);border-radius:9px;padding:11px;font-size:15px;margin-top:10px;}
.btn{width:100%;margin-top:14px;background:var(--accent);color:#04201c;border:0;border-radius:10px;padding:13px;font-weight:700;font-size:16px;cursor:pointer;}
.hint{color:var(--muted);font-size:12px;margin-top:10px;}
.status{color:#ffb3c1;font-size:13px;margin-top:10px;min-height:16px;}

/* Sala (visible tras conectar) */
.top,.main{display:none;}
body.connected .prejoin{display:none;}
body.connected .top{display:flex;}
body.connected .main{display:flex;}

.top{align-items:center;gap:12px;padding:10px 16px;background:var(--panel);border-bottom:1px solid var(--line);}
.top .t{font-weight:600;}
.count{color:var(--accent);font-size:13px;font-weight:600;}
.status2{margin-left:auto;color:var(--muted);font-size:12px;}
.logo-sm{height:26px;}
.live-dot{color:#ff5a5f;font-weight:700;font-size:12px;letter-spacing:.5px;display:flex;align-items:center;gap:6px;}
.live-dot::before{content:"";width:9px;height:9px;border-radius:50%;background:#ff3b30;animation:pulse 1.6s infinite;}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,59,48,.6);}70%{box-shadow:0 0 0 8px rgba(255,59,48,0);}100%{box-shadow:0 0 0 0 rgba(255,59,48,0);}}

.main{height:calc(100vh - 46px);height:calc(100dvh - 46px);}
.only-mobile{display:none;}
.video{flex:1;display:flex;flex-direction:column;min-width:0;padding:12px;gap:10px;}
.stage{flex:1;position:relative;background:#000;border-radius:12px;overflow:hidden;min-height:0;}
.stage video{width:100%;height:100%;object-fit:contain;background:#000;}
.stageLabel{position:absolute;left:12px;top:12px;background:rgba(0,0,0,.55);padding:4px 10px;border-radius:6px;font-size:13px;display:none;}
.stageWait{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;text-align:center;color:var(--muted);padding:24px;font-size:16px;}

.bar{display:flex;gap:10px;justify-content:center;}
.cbtn{width:50px;height:50px;border:0;border-radius:50%;background:#2a3a48;color:#e7edf3;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s;}
.cbtn:hover{background:#34475a;}
.cbtn svg{width:22px;height:22px;}
.cbtn.off{background:#7a2740;color:#fff;}
.cbtn.leave{background:#c0392b;color:#fff;}
.cbtn.leave:hover{background:#d84636;}

/* Columna derecha: chat arriba, participantes abajo */
.side{flex:0 0 320px;display:flex;flex-direction:column;min-height:0;background:var(--panel);border-left:1px solid var(--line);}
.chat{flex:1;display:flex;flex-direction:column;min-height:0;}
.chat-h{padding:12px 14px;font-weight:600;border-bottom:1px solid var(--line);}
.chat-m{flex:1;overflow-y:auto;padding:10px 14px;display:flex;flex-direction:column;gap:7px;}
.cm{font-size:13px;line-height:1.4;}
.cm b{color:var(--accent);}
.cm.mine b{color:#8fd6ff;}
.chat-i{display:flex;gap:6px;padding:10px;border-top:1px solid var(--line);}
.chat-i input{flex:1;background:#0c131a;border:1px solid var(--line);color:var(--txt);border-radius:8px;padding:9px;font-size:13px;}
.chat-i button{background:var(--accent);color:#04201c;border:0;border-radius:8px;padding:9px 14px;font-weight:700;cursor:pointer;}

.thumbs{flex:0 0 auto;max-height:42%;overflow-y:auto;display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:10px;border-top:1px solid var(--line);}
.thumb{position:relative;aspect-ratio:4/3;background:#000;border-radius:9px;overflow:hidden;border:1px solid var(--line);}
.thumb video{width:100%;height:100%;object-fit:cover;}
.thumb .tl{position:absolute;left:5px;bottom:5px;background:rgba(0,0,0,.6);padding:1px 6px;border-radius:5px;font-size:11px;}
.thumb .ph{position:absolute;inset:0;display:none;align-items:center;justify-content:center;background:linear-gradient(135deg,#2a3a48,#1b2733);color:#fff;font-size:30px;font-weight:700;}
.thumb.mic{outline:2px solid var(--accent);outline-offset:-2px;}

@media(max-width:820px){
  .top{padding:9px 12px;}
  .status2{display:none;}
  .main{position:relative;flex-direction:column;}
  .video{flex:1;padding:8px;order:1;}
  /* la columna se deshace: vídeo arriba, miniaturas en tira, chat como panel */
  .side{display:contents;}
  .thumbs{order:2;flex:0 0 auto;max-height:none;display:flex;flex-direction:row;overflow-x:auto;overflow-y:hidden;gap:8px;padding:6px 8px;border-top:0;background:transparent;}
  .thumb{flex:0 0 96px;}
  .cbtn{width:46px;height:46px;}
  /* chat como panel inferior que se abre/cierra */
  .chat{position:absolute;left:0;right:0;bottom:0;height:62dvh;transform:translateY(100%);transition:transform .22s ease;z-index:20;border-left:0;border-top:1px solid var(--line);box-shadow:0 -10px 30px rgba(0,0,0,.4);background:var(--panel);}
  body.chat-open .chat{transform:translateY(0);}
  .only-mobile{display:flex!important;}
  .chat-h{display:flex;justify-content:space-between;align-items:center;}
  .chat-close{background:none;border:0;color:var(--muted);font-size:20px;cursor:pointer;line-height:1;}
}
@media(min-width:821px){ .chat-close{display:none;} }