*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;overflow:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#app{height:100vh;position:relative;overflow:hidden}.screen{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;flex-direction:column;transition:opacity .3s ease-in-out}.screen.hidden{opacity:0;pointer-events:none}.container{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;padding:2rem;text-align:center}#loading-screen{justify-content:center;align-items:center;background:#000000e6}.loading-content{text-align:center}.loading-spinner{width:50px;height:50px;border:3px solid rgba(255,255,255,.3);border-top:3px solid #ffffff;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 1rem}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.app-header{margin-bottom:3rem}.app-header h1{font-size:2.5rem;font-weight:300;margin-bottom:.5rem;text-shadow:0 2px 4px rgba(0,0,0,.3)}.app-header p{font-size:1.1rem;opacity:.8}.action-buttons{display:flex;flex-direction:column;gap:1rem;margin-bottom:3rem;width:100%;max-width:300px}.primary-btn,.secondary-btn{display:flex;align-items:center;justify-content:center;gap:.8rem;padding:1.2rem 2rem;border:none;border-radius:12px;font-size:1.1rem;font-weight:500;cursor:pointer;transition:all .2s ease;text-decoration:none;min-height:60px}.primary-btn{background:#fff3;color:#fff;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.3)}.primary-btn:hover,.primary-btn:focus{background:#ffffff4d;transform:translateY(-2px);box-shadow:0 8px 25px #0003}.secondary-btn{background:#ffffff1a;color:#fff;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2)}.secondary-btn:hover,.secondary-btn:focus{background:#fff3;transform:translateY(-2px)}.btn-icon{font-size:1.3rem}.join-section{width:100%;max-width:300px}.input-group{display:flex;gap:.5rem;margin-bottom:1rem}.input-group input{flex:1;padding:1rem;border:1px solid rgba(255,255,255,.3);border-radius:8px;background:#ffffff1a;color:#fff;font-size:1rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.input-group input::placeholder{color:#fff9}.input-group input:focus{outline:none;border-color:#ffffff80;background:#ffffff26}.join-btn{padding:1rem 1.5rem;background:#fff3;color:#fff;border:1px solid rgba(255,255,255,.3);border-radius:8px;cursor:pointer;font-size:1rem;font-weight:500;transition:all .2s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.join-btn:hover,.join-btn:focus{background:#ffffff4d}#room-screen{background:#000}.video-container{position:relative;width:100%;height:100%;overflow:hidden}.video-feed{position:absolute;object-fit:cover;background:#1a1a1a}.video-feed.remote{top:0;left:0;width:100%;height:100%;z-index:1}.video-feed.local{top:20px;right:20px;width:120px;height:160px;border-radius:12px;border:2px solid rgba(255,255,255,.3);z-index:3;box-shadow:0 4px 12px #0000004d}.room-display{position:absolute;top:20px;left:50%;transform:translate(-50%);background:#000000b3;padding:.5rem 1rem;border-radius:20px;font-size:.9rem;z-index:3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);text-align:center}.room-name{display:block;font-weight:600;color:#fff}.room-id-subtitle{display:block;font-size:.8rem;color:#ffffffb3;margin-top:.25rem}.connection-status{position:absolute;top:20px;left:20px;display:flex;align-items:center;gap:.5rem;background:#000000b3;padding:.5rem 1rem;border-radius:20px;font-size:.9rem;z-index:3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.status-dot{width:8px;height:8px;border-radius:50%;background:gold;animation:pulse 2s infinite}.status-dot.connected{background:#0f0;animation:none}.status-dot.ready{background:#0af;animation:none}.status-dot.disconnected{background:#f44;animation:none}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.controls-overlay{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,#000c);padding:2rem 1rem 1rem;z-index:2}.room-info{display:flex;align-items:center;justify-content:center;gap:1rem;margin-bottom:2rem}.room-id{background:#ffffff1a;padding:.5rem 1rem;border-radius:20px;font-family:monospace;font-size:.9rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.share-btn{background:#fff3;border:1px solid rgba(255,255,255,.3);color:#fff;padding:.5rem;border-radius:50%;cursor:pointer;transition:all .2s ease;width:40px;height:40px;display:flex;align-items:center;justify-content:center;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.share-btn:hover,.share-btn:focus{background:#ffffff4d;transform:scale(1.1)}.media-controls{display:flex;justify-content:center;gap:1.5rem}.control-btn{width:60px;height:60px;border-radius:50%;border:2px solid rgba(255,255,255,.3);background:#ffffff1a;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.5rem;transition:all .2s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.control-btn:hover,.control-btn:focus{transform:scale(1.1);background:#fff3}.control-btn.video-off,.control-btn.audio-off{background:#ff44444d;border-color:#ff444480}.control-btn.end-call{background:#f44c;border-color:#f44}.control-btn.end-call:hover{background:#f44}.error-content{text-align:center;max-width:400px}.error-content h2{font-size:2rem;margin-bottom:1rem;color:#ff6b6b}.error-content p{font-size:1.1rem;margin-bottom:2rem;opacity:.8}.toast-container{position:fixed;top:20px;right:20px;z-index:1000;display:flex;flex-direction:column;gap:.5rem}.toast{background:#000000e6;color:#fff;padding:1rem 1.5rem;border-radius:8px;font-size:.9rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2);animation:slideIn .3s ease-out;max-width:300px}.toast.success{border-color:#4caf5080;background:#4caf5033}.toast.error{border-color:#f4433680;background:#f4433633}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}@media (max-width: 768px){.container{padding:1rem}.app-header h1{font-size:2rem}.video-feed.local{width:100px;height:133px;top:15px;right:15px}.media-controls{gap:1rem}.control-btn{width:50px;height:50px;font-size:1.3rem}}@media (orientation: landscape) and (max-height: 600px){.container{justify-content:flex-start;padding-top:2rem}.app-header{margin-bottom:1.5rem}.app-header h1{font-size:1.8rem}.action-buttons{flex-direction:row;max-width:500px}}@media (hover: none) and (pointer: coarse){.control-btn:hover,.primary-btn:hover,.secondary-btn:hover{transform:none}}button:focus,input:focus{outline:2px solid rgba(255,255,255,.5);outline-offset:2px}button,.room-id,.status-text{user-select:none;-webkit-user-select:none;-moz-user-select:none}