*{margin:0;padding:0;box-sizing:border-box;font-family:Poppins,Arial,sans-serif}body{background:#f8fafc;color:#1e293b;overflow:hidden}.chat-page{display:flex;width:100%;height:100vh;overflow:hidden;background:#f8fafc}.sidebar{width:260px;background:#232f3e;color:#fff;padding:30px 20px;display:flex;flex-direction:column;justify-content:space-between;flex-shrink:0;height:100%}.sidebar-logo{display:flex;align-items:center;gap:12px;margin-bottom:40px}.sidebar-logo img{height:38px;width:auto;object-fit:contain;border-radius:6px}.sidebar h2{color:#febd69;font-size:1.8rem;margin-bottom:0;font-weight:700}.sidebar-links{list-style:none;display:flex;flex-direction:column;gap:8px;margin-bottom:auto}.sidebar-links li{width:100%}.sidebar a{text-decoration:none;color:#cbd5e1;display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:12px;transition:.3s;font-size:.95rem;font-weight:500}.sidebar a:hover,.sidebar a.active{background:#ffffff14;color:#febd69;transform:translate(4px)}.sidebar .logout-btn{width:100%;padding:14px;border:none;border-radius:12px;background:#febd69;color:#232f3e;font-size:.95rem;font-weight:700;cursor:pointer;transition:.3s;display:flex;align-items:center;justify-content:center;gap:10px}.sidebar .logout-btn:hover{background:#f3aa47}.chat-container{flex:1;display:flex;height:100%;overflow:hidden}.contacts-panel{width:320px;background:#fff;border-right:1px solid #e2e8f0;display:flex;flex-direction:column;height:100%;flex-shrink:0}.panel-header{padding:24px 20px 15px}.panel-header h2{font-size:1.25rem;color:#232f3e;font-weight:700}.contacts-list{flex:1;overflow-y:auto;padding:0 10px 20px}.contact-card{display:flex;align-items:center;gap:12px;padding:14px 12px;border-radius:12px;cursor:pointer;transition:.2s ease-in-out;margin-bottom:8px;border:1px solid transparent}.contact-card:hover{background:#f1f5f9}.contact-card.active{background:#febd69;border-color:#fce3b4}.contact-card.active h3{color:#232f3e!important}.contact-card.active p{color:#475569!important}.contact-card img{width:44px;height:44px;border-radius:50%;object-fit:cover;flex-shrink:0;border:2px solid white;box-shadow:0 2px 5px #0000000d}.contact-details{flex:1;min-width:0}.contact-details h3{font-size:.95rem;font-weight:600;color:#1e293b;margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.contact-details p{font-size:.8rem;color:#64748b;margin-top:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-area{flex:1;display:flex;flex-direction:column;height:100%;background:#f8fafc;position:relative;min-width:0}.chat-header{height:75px;background:#fff;border-bottom:1px solid #e2e8f0;padding:0 25px;display:flex;align-items:center;flex-shrink:0;justify-content:space-between}.chat-header .user-profile{display:flex;align-items:center;gap:12px}.chat-header .user-profile img{width:44px;height:44px;border-radius:50%;object-fit:cover;border:2px solid #e2e8f0}.chat-header .user-profile h3{font-size:1rem;color:#232f3e;font-weight:600;margin:0}.chat-header .badge{font-size:.75rem;color:#16a34a;font-weight:500}.messages-feed{flex:1;overflow-y:auto;padding:25px;display:flex;flex-direction:column;gap:16px;background:#f8fafc}.message{display:flex;width:100%}.message.incoming{justify-content:flex-start}.message.outgoing{justify-content:flex-end}.message-content{max-width:60%;padding:12px 18px;border-radius:16px;position:relative}.message.incoming .message-content{background:#fff;color:#1e293b;border:1px solid #e2e8f0;border-top-left-radius:4px}.message.outgoing .message-content{background:#232f3e;color:#fff;border-top-right-radius:4px}.message-content p{font-size:.9rem;line-height:1.5;margin:0;word-break:break-word}.message-content .time{display:block;font-size:.7rem;margin-top:5px;text-align:right;font-weight:500}.message.incoming .time{color:#94a3b8}.message.outgoing .time{color:#cbd5e1}.chat-footer{padding:18px 25px;background:#fff;border-top:1px solid #e2e8f0;flex-shrink:0}.chat-footer input{flex:1;padding:12px 18px;border-radius:12px;border:1px solid #cbd5e1;outline:none;font-size:.95rem;transition:.2s;background:#f8fafc;color:#1e293b}.chat-footer input:focus{border-color:#febd69;background:#fff;box-shadow:0 0 0 4px #febd6926}.chat-footer .send-btn{width:46px;height:46px;border-radius:12px;background:#232f3e;color:#fff;border:none;display:flex;align-items:center;justify-content:center;font-size:1.1rem;cursor:pointer;transition:.2s ease-in-out;flex-shrink:0}.chat-footer .send-btn:hover{background:#febd69;color:#232f3e}@media(max-width:950px){.sidebar{display:none}}@media(max-width:768px){.contacts-panel{width:100%}.chat-area{display:none}.chat-area.active{display:flex;width:100%}}