*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #ffffff;--bg2: #f7f7f7;--bg3: #eeeeee;--fg: #000000;--fg2: #666666;--border: #e2e2e2;--radius: 12px;--shadow: 0 1px 4px rgba(0,0,0,.08)}[data-theme=dark]{--bg: #0c0c0c;--bg2: #161616;--bg3: #222222;--fg: #ffffff;--fg2: #999999;--border: #2a2a2a;--shadow: 0 1px 4px rgba(0,0,0,.4)}html,body{height:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,sans-serif;background:var(--bg);color:var(--fg);transition:background .2s,color .2s;-webkit-font-smoothing:antialiased}.logo-themed{filter:invert(0);transition:filter .2s}[data-theme=dark] .logo-themed{filter:invert(1)}.loading-screen{display:grid;place-items:center;height:100vh;background:var(--bg)}.spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--fg);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.theme-toggle{display:flex;align-items:center;justify-content:center;background:none;border:1px solid var(--border);border-radius:8px;padding:7px;cursor:pointer;color:var(--fg2);transition:color .15s,border-color .15s;flex-shrink:0}.theme-toggle:hover{color:var(--fg);border-color:var(--fg2)}.btn-primary{display:inline-flex;align-items:center;gap:6px;background:var(--fg);color:var(--bg);border:none;padding:10px 20px;border-radius:var(--radius);font-size:14px;font-weight:600;cursor:pointer;transition:opacity .15s;white-space:nowrap}.btn-primary:hover{opacity:.8}.btn-primary:disabled{opacity:.4;cursor:not-allowed}.btn-primary.btn-sm{padding:8px 16px;font-size:13px}.btn-ghost{background:none;color:var(--fg2);border:1px solid var(--border);padding:8px 16px;border-radius:var(--radius);font-size:14px;cursor:pointer;transition:color .15s,border-color .15s}.btn-ghost:hover{color:var(--fg);border-color:var(--fg2)}.btn-icon{display:flex;align-items:center;justify-content:center;background:none;border:1px solid var(--border);color:var(--fg2);padding:7px;border-radius:8px;cursor:pointer;transition:color .15s,border-color .15s}.btn-icon:hover{color:var(--fg)}.btn-icon.copied{color:var(--fg);border-color:var(--fg2)}.btn-back{display:flex;align-items:center;justify-content:center;background:none;border:1px solid var(--border);color:var(--fg2);padding:6px;border-radius:8px;cursor:pointer;transition:color .15s}.btn-back:hover{color:var(--fg)}.input{width:100%;background:var(--bg2);color:var(--fg);border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;font-size:15px;outline:none;transition:border-color .15s}.input:focus{border-color:var(--fg2)}.input::placeholder{color:var(--fg2)}.login-page{display:grid;place-items:center;min-height:100vh;background:var(--bg);position:relative}.login-page>.theme-toggle{position:absolute;top:20px;right:20px}.login-card{display:flex;flex-direction:column;align-items:center;gap:28px;padding:56px 48px;text-align:center}.login-logo{width:260px;height:auto}.login-subtitle{color:var(--fg2);font-size:15px}.google-btn{display:inline-flex;align-items:center;gap:12px;background:var(--fg);color:var(--bg);border:none;padding:14px 32px;border-radius:var(--radius);font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;transition:opacity .15s}.google-btn:hover{opacity:.8}.lobby-page{display:flex;flex-direction:column;min-height:100vh}.lobby-header{display:flex;align-items:center;gap:10px;padding:0 32px;height:72px;border-bottom:1px solid var(--border);background:var(--bg);position:sticky;top:0;z-index:10;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.header-brand{display:flex;align-items:center;gap:8px}.header-short-logo{display:none}.header-full-logo{height:56px;width:auto}.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}.user-avatar{width:32px;height:32px;border-radius:50%;object-fit:cover;border:1px solid var(--border)}.user-name{font-size:14px;color:var(--fg2)}.lobby-main{flex:1;max-width:1100px;width:100%;margin:0 auto;padding:48px 32px}.lobby-hero{display:flex;align-items:center;justify-content:space-between;margin-bottom:40px;gap:16px}.lobby-hero h1{font-size:26px;font-weight:700}.hero-sub{font-size:14px;color:var(--fg2);margin-top:4px}.rooms-empty{display:flex;flex-direction:column;align-items:center;gap:12px;padding:100px 0;color:var(--fg2)}.rooms-empty svg{opacity:.3}.rooms-empty p{font-size:16px;font-weight:500;color:var(--fg)}.rooms-empty span{font-size:14px}.rooms-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px}.room-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;gap:14px;transition:border-color .15s,box-shadow .15s}.room-card:hover{border-color:var(--fg2);box-shadow:var(--shadow)}.room-card-icon{display:flex;align-items:center;justify-content:center;width:42px;height:42px;background:var(--bg3);border-radius:10px;color:var(--fg2)}.room-card-body h3{font-size:15px;font-weight:600}.room-date{font-size:13px;color:var(--fg2);margin-top:3px}.room-card-actions{display:flex;align-items:center;justify-content:space-between;gap:8px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:grid;place-items:center;z-index:100;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal{background:var(--bg);border:1px solid var(--border);border-radius:16px;padding:32px;width:420px;max-width:90vw;display:flex;flex-direction:column;gap:20px;box-shadow:0 20px 60px #0003}.modal h2{font-size:20px;font-weight:700}.modal-actions{display:flex;justify-content:flex-end;gap:10px}.room-page{display:flex;flex-direction:column;height:100vh;background:var(--bg);overflow:hidden}.room-header{display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:56px;border-bottom:1px solid var(--border);flex-shrink:0;gap:12px}.room-header-left{display:flex;align-items:center;gap:10px}.room-name{font-weight:600;font-size:15px}.participants-badge{background:var(--bg3);color:var(--fg2);font-size:12px;font-weight:600;padding:2px 8px;border-radius:20px}.video-grid{flex:1;display:grid;gap:6px;padding:12px;overflow:hidden;background:var(--bg);min-height:0}.video-grid[data-count="1"]{grid-template-columns:1fr}.video-grid[data-count="2"]{grid-template-columns:1fr 1fr}.video-grid[data-count="3"],.video-grid[data-count="4"]{grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr}.video-grid[data-count="5"],.video-grid[data-count="6"]{grid-template-columns:repeat(3,1fr);grid-template-rows:1fr 1fr}.video-tile{position:relative;background:var(--bg2);border-radius:10px;overflow:hidden;display:flex;align-items:center;justify-content:center;border:1px solid var(--border)}.video-tile video{width:100%;height:100%;object-fit:cover;display:block}.video-tile.local video{transform:scaleX(-1)}.video-avatar{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;font-size:48px;font-weight:700;color:var(--fg2);background:var(--bg2);text-transform:uppercase}.video-label{position:absolute;bottom:10px;left:10px;display:flex;align-items:center;gap:5px;background:#0000008c;color:#fff;font-size:12px;font-weight:500;padding:3px 8px;border-radius:6px}.controls{display:flex;align-items:center;justify-content:center;gap:10px;padding:14px 24px;border-top:1px solid var(--border);flex-shrink:0;background:var(--bg)}.ctrl-btn{display:flex;align-items:center;justify-content:center;width:50px;height:50px;border-radius:50%;border:1px solid var(--border);background:var(--bg2);color:var(--fg);cursor:pointer;transition:background .15s,border-color .15s}.ctrl-btn:hover{background:var(--bg3)}.ctrl-btn.ctrl-off,.ctrl-btn.ctrl-active{background:var(--fg);color:var(--bg);border-color:var(--fg)}.ctrl-btn.ctrl-leave{background:#dc2626;color:#fff;border-color:#dc2626;width:56px;height:56px}.ctrl-btn.ctrl-leave:hover{background:#b91c1c;border-color:#b91c1c}@media (max-width: 600px){.lobby-header{padding:0 16px}.lobby-main{padding:32px 16px}.header-full-logo,.user-name{display:none}.lobby-hero{flex-direction:column;align-items:flex-start}.modal{padding:24px}}