:root{
  --bg:#08101b;
  --bg2:#0f1c31;
  --panel:rgba(10,19,35,.84);
  --panel-2:rgba(7,15,28,.94);
  --line:rgba(112,255,164,.16);
  --line-2:rgba(140,161,255,.15);
  --text:#edf5ff;
  --muted:#9aa8c0;
  --green:#67ff8c;
  --green-soft:rgba(103,255,140,.18);
  --violet:#a855f7;
  --violet-soft:rgba(168,85,247,.18);
  --danger:#ff617d;
  --warn:#ffb84d;
  --shadow:0 20px 50px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:radial-gradient(circle at top,#142340,#08101b 56%);color:var(--text)}
button,input{font:inherit}
button{cursor:pointer;border:1px solid var(--line);background:linear-gradient(135deg,rgba(103,255,140,.13),rgba(168,85,247,.14));color:var(--text);border-radius:16px;padding:10px 14px;transition:.18s ease}
button:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(103,255,140,.1)}
input{border:1px solid var(--line);background:rgba(5,12,22,.9);color:var(--text);border-radius:16px;padding:12px 14px;outline:none}
.glass{background:var(--panel);backdrop-filter:blur(12px);border:1px solid var(--line);box-shadow:var(--shadow)}
.app-shell{display:grid;grid-template-columns:280px 1fr 290px;gap:14px;padding:14px;min-height:100vh}
.sidebar,.users-panel,.topbar,.video-panel,.chat-wrap{border-radius:26px}
.sidebar,.users-panel{padding:16px}
.main-col{display:grid;grid-template-rows:auto minmax(360px,54vh) 1fr;gap:14px;min-height:0}
.brand{font-weight:900;letter-spacing:.08em;font-size:22px;margin-bottom:18px;line-height:1.1}.brand span{color:var(--green);display:block;margin-top:4px}
.section-title{color:var(--green);font-size:13px;text-transform:uppercase;letter-spacing:.15em;margin-bottom:10px;font-weight:800}
.section-title.compact{margin:0}
.room-list,.users-list{display:grid;gap:10px}
.room-item,.user-card,.me-card{padding:14px;border-radius:18px;background:rgba(4,9,18,.54);border:1px solid rgba(255,255,255,.05)}
.room-item{display:block;text-align:left}
.room-item.active{outline:2px solid rgba(103,255,140,.45);box-shadow:0 0 0 1px rgba(103,255,140,.1),0 0 24px rgba(103,255,140,.08)}
.room-meta{font-size:12px;color:var(--muted);margin-top:3px}
.mod-buttons{display:grid;gap:8px;margin-bottom:16px}
.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 18px}
.top-title{font-size:22px;font-weight:900}.top-title span{color:var(--green)}.top-sub{color:var(--muted);margin-top:4px}
.controls{display:flex;flex-wrap:wrap;gap:10px}
.chat-wrap{display:grid;grid-template-rows:auto 1fr auto;padding:16px;min-height:0}
.messages{overflow:auto;display:grid;gap:10px;padding-right:4px;min-height:220px}
.msg{padding:12px 14px;border-radius:16px;background:rgba(4,9,18,.58);border:1px solid rgba(255,255,255,.05)}
.msg .meta{font-size:12px;color:var(--muted);margin-bottom:6px}
.msg.system-info{border-color:rgba(103,255,140,.2)}
.msg.system-warning{border-color:rgba(255,184,77,.25)}
.msg.system-error{border-color:rgba(255,97,125,.25)}
.message-form{display:grid;grid-template-columns:1fr auto;gap:10px;margin-top:14px}
.user-card{display:grid;gap:8px}
.user-line{display:flex;align-items:center;justify-content:space-between;gap:8px}
.user-name{font-weight:800}
.user-tools{display:flex;flex-wrap:wrap;gap:6px}.user-tools button{padding:7px 10px;font-size:12px}
.dot{width:10px;height:10px;border-radius:50%;display:inline-block;margin-right:8px;background:var(--green);box-shadow:0 0 12px rgba(103,255,140,.7)}
.badge{display:inline-flex;align-items:center;padding:4px 9px;border-radius:999px;font-size:11px;font-weight:800;margin-left:6px;text-transform:uppercase}
.role-admin{background:rgba(255,97,125,.16);color:#ffd5dd}
.role-moderator,.role-modo{background:rgba(255,184,77,.16);color:#ffe4b8}
.role-user{background:rgba(103,255,140,.16);color:#d0ffdb}

.video-panel{display:flex;flex-direction:column;min-height:0;overflow:hidden}
.panel-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;border-bottom:1px solid rgba(112,255,164,.12)}
.panel-sub{margin-top:4px;color:rgba(220,235,255,.65);font-size:13px}
.video-tools{display:flex;align-items:center;gap:10px}
.mini-tool{border:1px solid rgba(120,255,170,.18);background:linear-gradient(180deg,rgba(72,94,140,.32),rgba(61,39,98,.42));color:#e9f3ff;border-radius:14px;padding:10px 16px;font-weight:700}
.mini-tool:hover,.mini-tool.active{border-color:rgba(92,255,154,.45);box-shadow:0 0 0 1px rgba(92,255,154,.15),0 0 20px rgba(92,255,154,.08)}
.video-stage{position:relative;padding:16px;min-height:320px;max-height:54vh;overflow:auto}
.video-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));align-items:stretch}
.video-stage.focus-mode .video-grid{grid-template-columns:2fr 1fr}
.video-card{position:relative;background:radial-gradient(circle at top,rgba(53,87,180,.2),transparent 38%),linear-gradient(180deg,rgba(8,19,39,.96),rgba(3,10,23,.98));border:1px solid rgba(83,234,155,.14);border-radius:22px;overflow:hidden;min-height:200px;aspect-ratio:16/9;box-shadow:inset 0 0 0 1px rgba(255,255,255,.02),0 10px 30px rgba(0,0,0,.22);transition:.2s ease}
.video-card:hover{transform:translateY(-2px);border-color:rgba(105,255,173,.28)}
.video-card.speaking{box-shadow:0 0 0 2px rgba(92,255,154,.38),0 0 22px rgba(92,255,154,.14),inset 0 0 0 1px rgba(255,255,255,.03)}
.video-card.self{border-color:rgba(132,118,255,.38)}
.video-card.pinned{min-height:280px}
.video-media{position:absolute;inset:0;width:100%;height:100%}
.video-media video{width:100%;height:100%;object-fit:cover;background:#050d18;display:block}
.video-placeholder{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 50% 35%,rgba(45,107,255,.25),transparent 30%),linear-gradient(180deg,rgba(6,19,40,.96),rgba(5,10,20,.98))}
.hidden-placeholder{display:none}
.video-avatar{width:92px;height:92px;border-radius:50%;background:linear-gradient(135deg,#233b78,#0f9b62);display:flex;align-items:center;justify-content:center;color:#fff;font-size:32px;font-weight:900;box-shadow:0 0 28px rgba(82,255,164,.1);text-transform:uppercase}
.video-topbar{position:absolute;top:12px;left:12px;right:12px;display:flex;justify-content:space-between;align-items:flex-start;pointer-events:none}
.role-chip{display:inline-flex;align-items:center;gap:6px;background:rgba(11,21,38,.74);border:1px solid rgba(255,255,255,.08);color:#dff3ff;font-size:11px;font-weight:800;padding:6px 10px;border-radius:999px;backdrop-filter:blur(8px);text-transform:uppercase}
.role-chip.admin{background:rgba(90,32,56,.78);border-color:rgba(255,120,170,.25)}
.role-chip.modo,.role-chip.moderator{background:rgba(54,62,120,.78);border-color:rgba(129,142,255,.25)}
.video-actions{display:flex;gap:8px}
.media-badge{width:36px;height:36px;border-radius:50%;background:rgba(8,15,30,.78);border:1px solid rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;color:#f7fbff;font-size:15px;backdrop-filter:blur(8px)}
.media-badge.off{background:rgba(126,28,40,.78);border-color:rgba(255,95,95,.3)}
.video-footer{position:absolute;left:12px;right:12px;bottom:12px;display:flex;justify-content:space-between;align-items:center;gap:12px}
.video-user{display:flex;flex-direction:column;gap:4px;min-width:0;background:rgba(8,15,30,.74);border:1px solid rgba(255,255,255,.06);border-radius:14px;padding:10px 12px;backdrop-filter:blur(10px)}
.video-name{color:#fff;font-weight:800;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.video-status{color:rgba(218,234,255,.78);font-size:12px}
.video-pin{border:1px solid rgba(255,255,255,.08);background:rgba(8,15,30,.74);color:#fff;border-radius:12px;padding:10px 12px;font-weight:700;backdrop-filter:blur(8px)}
.video-pin:hover{border-color:rgba(92,255,154,.3);box-shadow:0 0 16px rgba(92,255,154,.1)}
.video-empty{min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;border:1px dashed rgba(92,255,154,.18);border-radius:22px;color:rgba(231,243,255,.74);background:radial-gradient(circle at top,rgba(58,108,255,.12),transparent 30%),linear-gradient(180deg,rgba(7,18,36,.86),rgba(4,11,22,.94));text-align:center;padding:30px}
.video-empty-icon{font-size:42px;margin-bottom:12px}.video-empty-title{font-weight:800;color:#fff;margin-bottom:6px}.video-empty-sub{font-size:14px;color:rgba(220,234,255,.68)}

@media (max-width:1200px){.app-shell{grid-template-columns:260px 1fr}.users-panel{grid-column:1/-1}.video-grid{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}}
@media (max-width:900px){.app-shell{grid-template-columns:1fr}.sidebar,.users-panel{order:2}.main-col{order:1;grid-template-rows:auto minmax(260px,auto) minmax(380px,1fr)}.topbar,.panel-header{flex-direction:column;align-items:flex-start;gap:12px}.video-stage{max-height:none;min-height:260px}.video-stage.focus-mode .video-grid{grid-template-columns:1fr}.video-card.pinned{min-height:220px}}
@media (max-width:640px){.video-grid{grid-template-columns:1fr}.video-avatar{width:74px;height:74px;font-size:24px}.video-footer{flex-direction:column;align-items:stretch}.video-pin{width:100%}.message-form{grid-template-columns:1fr}}