:root{--bg-color:#0f172a;--text-primary:#f8fafc;--text-secondary:#94a3b8;--accent-color:#3b82f6;--accent-hover:#2563eb;--glass-bg:#1e293bb3;--glass-border:#ffffff1a;--danger:#ef4444;--success:#10b981}*{box-sizing:border-box;margin:0;padding:0;font-family:Inter,system-ui,-apple-system,sans-serif}body{background-color:var(--bg-color);color:var(--text-primary);background:radial-gradient(circle at 0 0,#1e1b4b,#0f172a);flex-direction:column;min-height:100vh;display:flex;overflow-x:hidden}#root{flex-direction:column;flex:1;display:flex}.glass-panel{background:var(--glass-bg);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-border);border-radius:16px;box-shadow:0 8px 32px #0000004d}.btn{background-color:var(--accent-color);color:#fff;cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-size:1rem;font-weight:600;transition:all .2s;display:inline-flex}.btn:hover{background-color:var(--accent-hover);transform:translateY(-1px);box-shadow:0 4px 12px #3b82f666}.btn-danger{background-color:var(--danger)}.btn-danger:hover{background-color:#dc2626;box-shadow:0 4px 12px #ef444466}input{border:1px solid var(--glass-border);color:#fff;background:#0f172a99;border-radius:8px;outline:none;padding:12px 16px;font-size:1rem;transition:border-color .2s}input:focus{border-color:var(--accent-color);box-shadow:0 0 0 2px #3b82f633}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#fff3}.landing-container{justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.hero{text-align:center;width:100%;max-width:480px;padding:40px;animation:.5s ease-out fadeIn}.logo-icon{margin-bottom:16px;font-size:3rem}.hero h1{background:linear-gradient(135deg,#60a5fa,#c084fc);-webkit-text-fill-color:transparent;-webkit-background-clip:text;margin-bottom:8px;font-size:2.5rem}.hero p{color:var(--text-secondary);margin-bottom:24px}.user-info-form{text-align:left}.user-info-form label{color:var(--text-secondary);margin-bottom:8px;font-size:.9rem;display:block}.actions{flex-direction:column;gap:16px;display:flex}.create-btn{width:100%;padding:16px;font-size:1.1rem}.divider{color:var(--text-secondary);margin:16px 0;position:relative}.divider:before,.divider:after{content:"";background:var(--glass-border);width:25%;height:1px;position:absolute;top:50%}.divider:before{left:0}.divider:after{right:0}.join-form{gap:8px;display:flex}.join-form input{flex:1}.room-container{flex-direction:column;height:calc(100vh - 40px);margin:20px;display:flex;overflow:hidden}.room-header{border-bottom:1px solid var(--glass-border);justify-content:space-between;align-items:center;padding:16px 24px;display:flex}.room-content{flex:1;display:flex;overflow:hidden}.video-grid{flex:2;justify-content:center;align-items:center;height:100%;padding:24px;display:flex;position:relative;overflow:hidden}.remote-videos-container{gap:16px;width:100%;height:100%;display:grid;position:relative}.remote-videos-container.count-1{grid-template-columns:1fr}.remote-videos-container.count-2{grid-template-columns:1fr 1fr}.remote-videos-container.count-3,.remote-videos-container.count-4{grid-template-rows:1fr 1fr;grid-template-columns:1fr 1fr}.local-video-floating{aspect-ratio:16/9;z-index:10;border:2px solid var(--accent-color);background:#000;border-radius:12px;width:200px;position:absolute;bottom:24px;right:24px;overflow:hidden;box-shadow:0 8px 32px #0009}.local-video-floating .video-label{padding:2px 6px;font-size:.75rem;bottom:6px;left:6px}.controls-bar{z-index:20;background:#0f172ad9;border-radius:40px;gap:16px;padding:12px 24px;display:flex;position:absolute;bottom:24px;left:50%;transform:translate(-50%)}.control-btn{border-radius:50%;justify-content:center;align-items:center;width:48px;height:48px;padding:0;font-size:1.2rem;display:flex}.chat-image{border-radius:8px;max-width:100%;margin-top:6px;display:block;box-shadow:0 2px 8px #0003}.file-download-link{color:var(--accent-color);border:1px solid var(--glass-border);word-break:break-all;background:#ffffff1a;border-radius:8px;margin-top:6px;padding:8px 12px;font-size:.9rem;text-decoration:none;display:inline-block}.file-download-link:hover{background:#fff3}.file-btn{cursor:pointer;background-color:#ffffff1a;flex-shrink:0;justify-content:center;align-items:center;width:46px;height:46px;padding:0;display:flex}.file-btn:hover{background-color:#fff3}.video-wrapper{background:#000;border-radius:12px;justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:relative;overflow:hidden;box-shadow:0 4px 20px #0006}.local-video{object-fit:cover;width:100%;height:100%;transform:scaleX(-1)}.video-label{color:#fff;background:#0009;border-radius:6px;padding:4px 10px;font-size:.85rem;position:absolute;bottom:12px;left:12px}.remote-video{object-fit:cover;width:100%;height:100%}.video-placeholder{aspect-ratio:16/9;width:100%;max-width:600px;color:var(--text-secondary);text-align:center;justify-content:center;align-items:center;padding:20px;font-size:1.2rem;display:flex}.chat-panel{flex-direction:column;flex:1;max-width:380px;margin:24px 24px 24px 0;display:flex}.chat-panel h3{border-bottom:1px solid var(--glass-border);padding:16px;font-size:1.1rem}.chat-messages{flex-direction:column;flex:1;padding:16px;display:flex;overflow-y:auto}.sys-message{text-align:center;color:var(--text-secondary);margin:8px 0;font-size:.9rem;font-style:italic}.msg-bubble{word-wrap:break-word;border-radius:12px;max-width:85%;margin-bottom:8px;padding:10px 14px;animation:.2s ease-out fadeIn}.my-message{background:var(--accent-color);border-bottom-right-radius:4px;align-self:flex-end;margin-left:auto}.their-message{background:#ffffff1a;border-bottom-left-radius:4px;align-self:flex-start;margin-right:auto}.msg-time{opacity:.7;margin-bottom:4px;font-size:.7rem;display:block}.chat-input-area{border-top:1px solid var(--glass-border);align-items:center;gap:8px;padding:16px;display:flex}.chat-input-area input[type=text]{flex:1;min-width:0}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.mobile-tabs{display:none}@media (width<=768px){.room-container{border:none;border-radius:0;height:100vh;margin:0}.room-content{flex-direction:column;overflow:hidden}.mobile-tabs{background:var(--glass-bg);border-bottom:1px solid var(--glass-border);display:flex}.tab-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;flex:1;padding:14px;font-size:1rem;font-weight:600;transition:all .3s}.tab-btn.active{color:var(--text-primary);border-bottom:3px solid var(--accent-color)}.mobile-hidden{display:none!important}.chat-panel{border:none;border-radius:0;flex:1;max-width:100%;margin:0}.video-grid{flex:1;padding:12px}.local-video-floating{width:120px;bottom:90px;right:12px}.controls-bar{gap:12px;padding:8px 16px;bottom:12px}.control-btn{width:44px;height:44px;font-size:1.1rem}}