.navbar-container{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;background-color:#1e293b;color:#f8fafc;box-shadow:0 2px 6px #0000001a;position:sticky;top:0;z-index:10}.navbar-brand{font-size:1.5rem;font-weight:700;cursor:pointer;transition:color .3s ease}.navbar-brand:hover{color:#60a5fa}.navbar-user{display:flex;align-items:center;gap:1rem;font-size:1rem}.logout-button{background-color:#ef4444;color:#fff;border:none;padding:.4rem .8rem;border-radius:.4rem;font-size:.9rem;cursor:pointer;transition:background-color .3s ease}.logout-button:hover{background-color:#dc2626}.auth-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(to bottom right,#e0f2fe,#bbdefb);padding:1.5rem;box-sizing:border-box;font-family:Inter,sans-serif;color:#333}.auth-container h2{font-size:2.2rem;color:#2563eb;margin-bottom:1.5rem;font-weight:700;text-shadow:1px 1px 3px rgba(0,0,0,.1)}.error{background-color:#ffe0e0;color:#c00;border:1px solid #c00;padding:.8rem;margin-bottom:1.2rem;border-radius:8px;width:100%;max-width:350px;text-align:center;box-shadow:0 2px 4px #0000001a}.auth-container form{background-color:#fff;padding:2rem;border-radius:12px;box-shadow:0 8px 20px #0000001a;display:flex;flex-direction:column;gap:1rem;width:100%;max-width:380px;box-sizing:border-box}.auth-container input{padding:.9rem 1rem;border:1px solid #cbd5e1;border-radius:8px;font-size:1rem;transition:border-color .3s ease,box-shadow .3s ease;outline:none}.auth-container input:focus{border-color:#2563eb;box-shadow:0 0 0 3px #2563eb33}.auth-container button[type=submit]{padding:1rem;background-color:#2563eb;color:#fff;font-size:1.1rem;font-weight:600;border:none;border-radius:8px;cursor:pointer;transition:background-color .3s ease,transform .2s ease,box-shadow .3s ease;box-shadow:0 4px 10px #2563eb4d}.auth-container button[type=submit]:hover{background-color:#1e40af;transform:translateY(-2px);box-shadow:0 6px 15px #2563eb66}.auth-container button[type=submit]:active{transform:translateY(0);box-shadow:0 2px 5px #2563eb33}.auth-container p{margin-top:1.5rem;font-size:.95rem;color:#555}.auth-container p a{color:#2563eb;text-decoration:none;font-weight:600;transition:color .3s ease,text-decoration .3s ease}.auth-container p a:hover{color:#1e40af;text-decoration:underline}@media (min-width: 768px){.auth-container{padding:2rem}.auth-container h2{font-size:2.5rem;margin-bottom:2rem}.auth-container form{max-width:450px;padding:2.5rem;gap:1.2rem}.auth-container input{padding:1rem 1.2rem}.auth-container button[type=submit]{padding:1.1rem;font-size:1.2rem}.auth-container p{font-size:1rem}}@media (min-width: 1024px){.auth-container{padding:3rem}.auth-container h2{font-size:2.8rem}.auth-container form{max-width:500px;padding:3rem}}@media (max-width: 480px){.auth-container{padding:1rem}.auth-container h2{font-size:1.8rem;margin-bottom:1rem}.auth-container form{padding:1.5rem;gap:.8rem}.auth-container input{font-size:.9rem;padding:.7rem .8rem}.auth-container button[type=submit]{font-size:1rem;padding:.8rem}.auth-container p{font-size:.85rem;margin-top:1rem}}:root{--primary: #4361ee;--primary-light: #4895ef;--secondary: #3f37c9;--dark: #1b263b;--light: #f8f9fa;--success: #4cc9f0;--warning: #f72585;--gray: #adb5bd;--gray-dark: #495057}*{box-sizing:border-box;margin:0;padding:0;font-family:Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif}body{background-color:#f5f7fa;color:var(--dark);line-height:1.6}.app-container{display:grid;grid-template-rows:auto 1fr;min-height:100vh}.main-content{padding:2rem;background-color:#fff}h1,h2,h3,h4{color:var(--dark);margin-bottom:1rem}h1{font-size:2rem;font-weight:700}h2{font-size:1.5rem;font-weight:600}@media (max-width: 768px){.main-content{padding:1rem}}.room-list{max-width:800px;margin:2rem auto;padding:1.5rem;background-color:#f8fafc;border-radius:1rem;box-shadow:0 4px 12px #0000001a}.room-list h2{font-size:1.8rem;margin-bottom:1rem;text-align:center;color:#1e293b}.room-list form{display:flex;gap:.75rem;margin-bottom:2rem;justify-content:center}.room-list input[type=text]{padding:.5rem 1rem;border:2px solid #cbd5e1;border-radius:.5rem;width:60%;font-size:1rem;transition:border-color .3s}.room-list input[type=text]:focus{border-color:#3b82f6;outline:none}.room-list button{padding:.5rem 1.2rem;background-color:#3b82f6;color:#fff;border:none;border-radius:.5rem;cursor:pointer;font-weight:600;transition:background-color .3s,transform .2s}.room-list button:hover{background-color:#2563eb;transform:scale(1.02)}.room-list button:disabled{background-color:#94a3b8;cursor:not-allowed}.rooms-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem}.room-card{background-color:#fff;padding:1rem;border-radius:.75rem;border:1px solid #e2e8f0;box-shadow:0 2px 6px #0000000d;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}.room-card:hover{transform:translateY(-4px);box-shadow:0 6px 12px #00000014}.room-card h3{font-size:1.25rem;color:#0f172a;margin-bottom:.25rem}.room-card p{color:#475569;font-size:.95rem}.device-card{background:#fff;border-radius:12px;padding:1.5rem;box-shadow:0 4px 6px #0000000d;transition:all .2s}.device-card.active{border-left:4px solid var(--success)}.device-card h3{margin-top:0;margin-bottom:.5rem}.device-card p{margin:.25rem 0;color:var(--gray-dark)}.device-control{margin:1rem 0}.device-control p{margin-bottom:.5rem}.device-control input[type=range]{width:100%;cursor:pointer}.device-actions{display:flex;gap:.5rem;margin-top:1.5rem;flex-wrap:wrap}.device-actions button{padding:.5rem 1rem;border:none;border-radius:5px;cursor:pointer;transition:background-color .2s}.device-actions button:not(.delete-btn){background-color:var(--primary);color:#fff}.device-actions button:not(.delete-btn):hover{background-color:var(--secondary)}.delete-btn{background-color:var(--warning);color:#fff}.delete-btn:hover{background-color:#d11a6b}.device-card input[type=text]{width:100%;padding:.5rem;margin-bottom:.5rem;border:1px solid var(--gray);border-radius:4px}.device-list{max-width:1200px;margin:0 auto;padding:1rem}.back-button{padding:.5rem 1.2rem;background-color:#3b82f6;color:#fff;border:none;border-radius:.5rem;cursor:pointer;font-weight:600;transition:background-color .3s,transform .2s}.back-button:hover{background-color:#2563eb;transform:scale(1.02)}.add-device-form{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:2rem}.add-device-form input{flex:2;min-width:200px;padding:.8rem;border:1px solid var(--gray);border-radius:8px;font-size:1rem}.add-device-form select{flex:1;min-width:150px;padding:.8rem;border:1px solid var(--gray);border-radius:8px;font-size:1rem}.add-device-form button{padding:.8rem 1.5rem;background-color:var(--primary);color:#fff;border:none;border-radius:8px;cursor:pointer;transition:background-color .2s}.add-device-form button:hover{background-color:var(--secondary)}.devices-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}