*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--brand: #6c63ff;--brand-dark: #5a52e0;--brand-light: #8b85ff;--bg-dark: #0f0f1a;--bg-card: #1a1a2e;--bg-elevated: #242440;--bg-input: #2a2a4a;--text-primary: #f0f0ff;--text-secondary: #a0a0c0;--text-muted: #606080;--border: rgba(255, 255, 255, .08);--success: #2ecc71;--danger: #e74c3c;--radius: 12px;--radius-sm: 8px;--shadow: 0 8px 32px rgba(0, 0, 0, .4)}html,body{height:100%}body{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg-dark);color:var(--text-primary);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}.hidden{display:none!important}.screen{width:100%;min-height:100vh}#screen-room{min-height:unset;height:100vh;display:flex;flex-direction:column}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;border-radius:var(--radius-sm);border:none;font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;transition:all .18s ease;white-space:nowrap}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover:not(:disabled){background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 4px 16px #6c63ff66}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover:not(:disabled){background:#c0392b}.btn-ghost{background:transparent;color:var(--text-secondary);border:1px solid var(--border)}.btn-ghost:hover:not(:disabled){background:var(--bg-elevated);color:var(--text-primary)}.btn-sm{padding:7px 14px;font-size:13px}.btn-full{width:100%;padding:14px;font-size:16px}.form-group{display:flex;flex-direction:column;gap:6px;margin-bottom:18px}.form-group label{font-size:13px;font-weight:500;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em}.form-group input{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-family:inherit;font-size:15px;padding:12px 14px;outline:none;transition:border-color .18s}.form-group input:focus{border-color:var(--brand)}.form-group input::placeholder{color:var(--text-muted)}.password-wrap{position:relative}.password-wrap input{width:100%;padding-right:44px}.toggle-pw{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:none;border:none;cursor:pointer;font-size:16px;opacity:.6}.toggle-pw:hover{opacity:1}.form-error{background:#e74c3c26;border:1px solid rgba(231,76,60,.4);border-radius:var(--radius-sm);color:#ff7675;font-size:13px;padding:10px 14px;margin-bottom:14px}.login-bg{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#0f0f1a,#1a0a2e,#0a1a2e);padding:24px;position:relative;overflow:hidden}.login-bg:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse at 30% 20%,rgba(108,99,255,.15) 0%,transparent 60%),radial-gradient(ellipse at 70% 80%,rgba(255,101,132,.1) 0%,transparent 60%);pointer-events:none}.login-card{background:var(--bg-card);border:1px solid var(--border);border-radius:20px;padding:48px 40px;width:100%;max-width:420px;box-shadow:var(--shadow);position:relative}.brand{text-align:center;margin-bottom:40px}.brand-logo{width:90px;height:68px;margin:0 auto 16px;display:block}.brand-name{font-size:32px;font-weight:700;color:var(--text-primary);letter-spacing:-.5px;margin-bottom:8px}.brand-tagline{font-size:14px;color:var(--text-muted)}.login-hint{font-size:12px;color:var(--text-muted);text-align:center;margin-top:16px}.app-header{display:flex;align-items:center;justify-content:space-between;padding:14px 24px;background:var(--bg-card);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.header-brand{display:flex;align-items:center;gap:10px}.header-logo{width:40px;height:30px;display:block}.header-title{font-size:18px;font-weight:700;color:var(--text-primary)}.header-user{display:flex;align-items:center;gap:10px}.header-name{font-size:14px;color:var(--text-secondary)}.user-avatar-sm{font-size:22px;line-height:1}.lobby-main{max-width:1100px;margin:0 auto;padding:32px 24px}.lobby-section{margin-bottom:40px}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.section-header h2{font-size:20px;font-weight:600}.online-users-row{display:flex;flex-wrap:wrap;gap:10px;align-items:flex-start;min-height:48px}.online-loading{font-size:14px;color:var(--text-muted);align-self:center}.online-user-card{display:flex;align-items:center;gap:8px;background:var(--bg-card);border:1px solid var(--border);border-radius:30px;padding:6px 14px 6px 8px;font-size:13px;transition:border-color .18s}.online-user-card.in-room{border-color:#6c63ff59}.online-user-card.is-me{border-color:var(--brand);background:#6c63ff14}.online-avatar{font-size:22px;line-height:1}.online-info{display:flex;flex-direction:column;gap:1px}.online-name{font-weight:600;color:var(--text-primary);line-height:1.3}.online-status{font-size:11px;color:var(--text-muted)}.online-status.active{color:var(--brand-light)}.rooms-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.room-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;transition:all .2s ease;cursor:pointer}.room-card:hover:not(.full){border-color:var(--brand);transform:translateY(-2px);box-shadow:0 8px 24px #6c63ff33}.room-card.full{opacity:.6;cursor:not-allowed}.room-card-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:14px}.room-card-name{font-size:17px;font-weight:600}.room-badge{font-size:11px;font-weight:600;padding:3px 8px;border-radius:20px;background:#6c63ff33;color:var(--brand-light)}.room-badge.full{background:#e74c3c33;color:#ff7675}.room-participants{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px;min-height:28px}.participant-chip{font-size:12px;padding:3px 10px;border-radius:20px;background:var(--bg-elevated);color:var(--text-secondary);border:1px solid var(--border)}.room-card-footer{display:flex;align-items:center;justify-content:space-between}.room-count{font-size:13px;color:var(--text-muted)}.empty-rooms{grid-column:1 / -1;text-align:center;padding:60px 20px;color:var(--text-muted);font-size:15px}.empty-icon{font-size:48px;margin-bottom:12px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:24px}.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:32px;width:100%;max-width:380px;box-shadow:var(--shadow)}.modal h3{font-size:18px;font-weight:600;margin-bottom:22px}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:8px}.room-header{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:var(--bg-card);border-bottom:1px solid var(--border);flex-shrink:0}.room-header-left{display:flex;align-items:center;gap:14px}.room-header-right{display:flex;align-items:center;gap:12px}.room-title{font-size:16px;font-weight:600}.participant-badge{font-size:12px;padding:3px 10px;border-radius:20px;background:var(--bg-elevated);color:var(--text-secondary)}.room-status-dot{width:10px;height:10px;border-radius:50%;background:var(--text-muted);transition:background .3s}.room-status-dot.connected{background:var(--success);box-shadow:0 0 6px var(--success)}.video-grid{flex:1;display:grid;gap:8px;padding:12px;background:#050510;overflow:hidden;align-content:start}.video-grid.p1{grid-template-columns:1fr;align-content:center}.video-grid.p2{grid-template-columns:1fr 1fr;align-content:center}.video-grid.p3,.video-grid.p4{grid-template-columns:1fr 1fr}.video-grid.p5,.video-grid.p6{grid-template-columns:1fr 1fr 1fr}.video-grid.p7,.video-grid.p8,.video-grid.p9{grid-template-columns:repeat(3,1fr)}.video-grid.p10{grid-template-columns:repeat(4,1fr)}.video-tile{position:relative;background:var(--bg-elevated);border-radius:10px;overflow:hidden;min-height:140px;aspect-ratio:4/3}.video-tile video{width:100%;height:100%;object-fit:cover;display:block}.video-tile.local video{transform:scaleX(-1)}.video-tile-label{position:absolute;bottom:8px;left:8px;background:#000000a6;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);border-radius:6px;padding:3px 10px;font-size:12px;font-weight:600;color:#fff}.video-tile-avatar{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;font-size:48px}.room-controls{display:flex;align-items:center;justify-content:center;gap:16px;padding:16px 20px;background:var(--bg-card);border-top:1px solid var(--border);flex-shrink:0}.ctrl-btn{display:flex;flex-direction:column;align-items:center;gap:4px;background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);color:var(--text-secondary);cursor:pointer;padding:12px 20px;transition:all .18s ease;min-width:72px;font-family:inherit}.ctrl-btn:hover{background:var(--bg-input);color:var(--text-primary)}.ctrl-btn.active{background:#6c63ff26;border-color:var(--brand);color:var(--brand-light)}.ctrl-btn.muted{background:#e74c3c1a;border-color:#e74c3c4d;color:#ff7675}.ctrl-btn.danger{background:#e74c3c26;border-color:#e74c3c80;color:#ff7675}.ctrl-btn.danger:hover{background:var(--danger);color:#fff}.ctrl-icon{font-size:22px;line-height:1}.ctrl-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.05em}@media (max-width: 600px){.login-card{padding:32px 22px}.lobby-main{padding:20px 14px}.rooms-grid{grid-template-columns:1fr}.ctrl-btn{padding:10px 14px;min-width:60px}}