*{margin:0;padding:0;box-sizing:border-box}body{overflow-x:hidden;font-family:Arial,sans-serif}#navbar{height:10vh;width:100%;background-color:#4a90e2;display:flex;justify-content:space-between;align-items:center;padding:0 40px;box-shadow:0 2px 8px #0000001a;color:#fff}.logo{font-size:28px;font-weight:700;letter-spacing:1px}.s{display:flex;gap:20px;align-items:center}.s a{text-decoration:none;color:#fff;font-size:16px;transition:color .3s ease}.s a:hover{color:#dff1ff}.s button{background-color:#ff4d4d;color:#fff;border:none;padding:8px 14px;border-radius:20px;cursor:pointer;transition:background-color .3s ease}.s button:hover{background-color:#d93636}#main{max-width:800px;margin:40px auto;background-color:#fef3c7;border-radius:12px;padding:20px;box-shadow:0 4px 12px #0000001a}.head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.sec{font-size:24px;font-weight:700;color:#333}.but button{background-color:#10b981;color:#fff;border:none;padding:10px 16px;border-radius:20px;cursor:pointer;font-size:14px;transition:background-color .3s ease}.but button:hover{background-color:#059669}.content{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;padding:10px}.card{height:80px;width:100%;max-width:500px;background-color:#7c3aed;display:flex;align-items:center;justify-content:space-between;gap:12px;border-radius:12px;padding:10px 16px;color:#fff;box-shadow:0 4px 8px #0000001a;transition:transform .2s ease,box-shadow .3s ease;cursor:pointer}.card:hover{transform:translateY(-2px);box-shadow:0 6px 12px #0003}.proi{height:60px;width:60px;border-radius:50%;object-fit:cover}.box{flex:1;margin-left:12px;display:flex;align-items:center;overflow:hidden}.box h1{font-size:1.2rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}.card button{background-color:#ef4444;color:#fff;border:none;padding:8px 12px;border-radius:8px;font-size:.9rem;cursor:pointer;transition:background-color .2s ease;flex-shrink:0}.card button:hover{background-color:#dc2626}*{margin:0;padding:0;box-sizing:border-box;font-family:Segoe UI,sans-serif}.room{height:100vh;display:flex;flex-direction:column;background:#eef2ff;color:#1e293b}.header{display:flex;align-items:center;padding:14px 16px;background:linear-gradient(135deg,#4338ca,#6366f1);color:#fff;box-shadow:0 2px 8px #00000026}.profile{width:45px;height:45px;border-radius:50%;margin-right:12px;border:2px solid rgba(255,255,255,.6)}.name{display:flex;flex-direction:column;justify-content:center;width:100%}.username{font-size:16px;font-weight:600}.status{font-size:12px;opacity:.85}.status.online{color:#bbf7d0}.status.offline{color:#e2e8f0}.chats{flex:1;padding:16px;overflow-y:auto;background:#e0e7ff;display:flex;flex-direction:column;gap:12px}.message-container{display:flex;align-items:center;gap:6px}.message-container.left{justify-content:flex-start}.message-container.right{justify-content:flex-end}.bubble{max-width:65%;padding:10px 14px;border-radius:16px;font-size:14px;line-height:1.4;transition:.2s}.message-container.left .bubble{background:#c7d2fe;color:#1e293b;border-top-left-radius:4px}.message-container.right .bubble{background:#fff;color:#1e293b;border-top-right-radius:4px;box-shadow:0 3px 8px #0000001a}.bubble:hover{transform:scale(1.02)}.text{display:flex;gap:10px;padding:10px;background:linear-gradient(135deg,#4338ca,#6366f1)}.text input{flex:1;padding:10px 14px;border-radius:20px;border:none;outline:none}#send{padding:10px 16px;border-radius:20px;border:none;background:#fff;color:#4338ca;font-weight:600;cursor:pointer;transition:.2s}#send:hover{background:#e0e7ff}.menu{position:relative;cursor:pointer;opacity:0;transition:.2s;color:#555}.message-container:hover .menu{opacity:1}.menu-options{position:absolute;top:20px;right:0;background:#fff;color:#000;border-radius:8px;padding:6px 10px;box-shadow:0 4px 10px #00000026;display:none}.menu:hover .menu-options{display:block}.chats::-webkit-scrollbar{width:6px}.chats::-webkit-scrollbar-thumb{background:#4338ca66;border-radius:10px}@media (max-width: 600px){.bubble{max-width:80%;font-size:13px}.username{font-size:14px}#send{padding:8px 12px}}#loginForm{background:#fff;padding:30px 40px;border-radius:12px;box-shadow:0 8px 16px #0000001a;width:300px;display:flex;flex-direction:column;gap:15px;font-family:Arial,sans-serif;margin:8vh auto}#loginForm label{font-weight:600;font-size:14px;color:#333;cursor:pointer}#loginForm input[type=text],#loginForm input[type=password]{padding:10px 12px;border:1.5px solid #ccc;border-radius:8px;font-size:14px;outline:none;transition:border-color .3s ease}#loginForm input[type=text]:focus,#loginForm input[type=password]:focus{border-color:#4a90e2}#loginForm button[type=submit]{padding:12px;background-color:#4a90e2;border:none;border-radius:8px;color:#fff;font-weight:700;font-size:16px;cursor:pointer;transition:background-color .3s ease}#loginForm button[type=submit]:hover{background-color:#357abd}#registerForm{background:#fff;padding:30px 40px;border-radius:12px;box-shadow:0 8px 16px #0000001a;width:320px;display:flex;flex-direction:column;gap:15px;font-family:Arial,sans-serif;margin:8vh auto}#registerForm label{font-weight:600;font-size:14px;color:#333;cursor:pointer}#registerForm input[type=text],#registerForm input[type=password]{padding:10px 12px;border:1.5px solid #ccc;border-radius:8px;font-size:14px;outline:none;transition:border-color .3s ease}#registerForm input[type=text]:focus,#registerForm input[type=password]:focus{border-color:#4a90e2}#registerForm button[type=submit]{padding:12px;background-color:#4a90e2;border:none;border-radius:8px;color:#fff;font-weight:700;font-size:16px;cursor:pointer;transition:background-color .3s ease}#registerForm button[type=submit]:hover{background-color:#357abd}.error-message{color:#e63946;background-color:#ffe5e9;padding:10px 15px;border:1.5px solid #e63946;border-radius:8px;font-size:14px;font-weight:600;text-align:center;margin:10vh auto 20px;width:300px;font-family:Arial,sans-serif}.back{margin:20px auto 0;display:block;padding:10px 24px;background-color:#f1f5f9;color:#4a90e2;font-weight:600;font-size:14px;border:2px solid #4a90e2;border-radius:8px;cursor:pointer;transition:background-color .3s ease,color .3s ease;width:120px;font-family:Arial,sans-serif}body{margin:0;font-family:Segoe UI,sans-serif;background-color:#f1f5f9}.whatsapp-profile{width:100vw;min-height:100vh;margin:0;background-color:#fff;border-radius:0;box-shadow:none;display:flex;flex-direction:column;align-items:center;overflow-y:auto}.profile-header{background-color:#075e54;padding:24px 16px;text-align:center;position:relative;display:flex;flex-direction:column;align-items:center;width:100%;box-sizing:border-box}.image-wrapper{position:relative}.profile-img{width:120px;height:120px;border-radius:50%;border:4px solid white;object-fit:cover;background-color:#fff}.change-photo-btn{display:inline-block;margin-top:12px;background-color:#22c55e;color:#fff;padding:8px 16px;border-radius:20px;font-size:14px;cursor:pointer;transition:background-color .3s ease}.change-photo-btn:hover{background-color:#16a34a}.update-btn{margin-top:16px;background-color:#0f766e;color:#fff;padding:10px 20px;border:none;border-radius:10px;font-size:14px;cursor:pointer;transition:background-color .3s ease}.update-btn:hover{background-color:#115e59}.profile-info{padding:16px;width:100%;box-sizing:border-box;flex-grow:1;background-color:#fff}.info-block{margin-bottom:20px}.info-block label{font-size:.85rem;color:#64748b;display:block;margin-bottom:5px;font-weight:600}.info-block p{font-size:1.1rem;color:#0f172a;margin:0;font-weight:500}.back{margin:8px 16px 16px auto;padding:10px 24px;background-color:#f1f5f9;color:#4a90e2;font-weight:600;font-size:14px;border:2px solid #4a90e2;border-radius:8px;cursor:pointer;transition:background-color .3s ease,color .3s ease;font-family:Arial,sans-serif}.back:hover{background-color:#4a90e2;color:#fff}@media (min-width: 500px){.whatsapp-profile{max-width:400px;height:100vh;margin:50px auto;border-radius:16px;box-shadow:0 10px 30px #0000001a}.profile-header{border-radius:16px 16px 0 0;padding:30px 20px}.profile-info{padding:24px}}.landing-container{height:100vh;background:linear-gradient(135deg,#6b73ff,#000dff);display:flex;justify-content:center;align-items:center;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;color:#fff;text-align:center;padding:20px}.landing-box{background:#ffffff26;border-radius:20px;padding:50px 40px;width:320px;box-shadow:0 15px 30px #0000004d;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.app-title{font-size:48px;font-weight:900;margin-bottom:8px;letter-spacing:3px;text-shadow:0 2px 6px rgba(0,0,0,.4)}.app-tagline{font-size:18px;margin-bottom:40px;font-weight:400;letter-spacing:.6px}.button-group{display:flex;justify-content:space-around;gap:20px}.btn{flex:1;padding:14px 0;border-radius:40px;font-weight:600;text-decoration:none;box-shadow:0 8px 15px #00000026;transition:all .3s ease;cursor:pointer;-webkit-user-select:none;user-select:none}.btn-login{background-color:#fff;color:#000dff;border:2px solid #ffffff}.btn-login:hover{background-color:#000dff;color:#fff;box-shadow:0 12px 24px #000dffaa}.btn-register{background-color:transparent;color:#fff;border:2px solid white}.btn-register:hover{background-color:#fff;color:#000dff;box-shadow:0 12px 24px #000dffaa}@keyframes spin{to{transform:rotate(360deg)}}