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70px);overflow-y:auto;margin-top:4px;border:none}.chat-room-list li{cursor:pointer;border:none;border-radius:10px}.chat-container{display:flex;flex-direction:column;height:calc(100vh - 70px);max-width:800px;margin:auto;border-radius:12px;padding:10px;box-shadow:0 0 5px #0000001a}.chat-box{flex:1;overflow-y:auto;padding:15px;background:#ece5dd;border-radius:8px;scroll-behavior:smooth}.chat-message{display:flex;margin-bottom:10px;align-items:flex-end}.chat-message.own{justify-content:flex-end}.chat-message.other{justify-content:flex-start}.chat-bubble{background:#fff;padding:10px 14px;border-radius:12px;position:relative;font-size:.95rem;line-height:1.4;max-width:70%;box-shadow:0 1px 1px #0000001a}.chat-message.own .chat-bubble{background:#dcf8c6}.chat-message.own .chat-bubble:after{content:"";position:absolute;top:0;right:-8px;width:0px;height:0px;border:20px solid transparent;border-top-color:#dcf8c6;border-bottom:0;border-left:0;margin-bottom:-1px}.chat-message.other .chat-bubble:after{content:"";position:absolute;top:0;left:-10px;width:0px;height:0px;border:20px solid transparent;border-top-color:#fff;border-bottom:0;border-right:0;margin-bottom:-1px}.sender{font-weight:600;font-size:.8rem;margin-bottom:3px;display:block;color:#555}.chat-bubble>.timestamp{display:block;font-size:.6rem!important;color:#888;margin-top:5px;text-align:right}.chat-input{display:flex;margin-top:15px;gap:10px}.chat-input input{flex:1;padding:10px;border-radius:20px;border:1px solid #ccc;font-size:1rem}.chat-input button{padding:8px 15px;border-radius:50px;cursor:pointer}.message-date-separator{text-align:center;margin:15px 0;font-size:.8rem;color:#888;position:relative;padding:5px 0;border-radius:8px}.message-date-separator span{background:#fff;padding:0 10px;border-radius:7px;position:relative;z-index:1}.msg-status{font-size:13px;margin-left:4px}.tick-icon{display:inline-block;margin-left:6px;font-size:12px;vertical-align:middle}.message-meta{display:flex;justify-content:flex-end;align-items:center;gap:4px;margin-top:auto}.status-icon .fa-check-double[style*="4fc3f7"]{color:#4fc3f7!important}.status-icon{font-size:12px;color:#00000080}.min-vh-100{min-height:100vh}.bg-light{background:linear-gradient(135deg,#f8f9fa,#e9ecef)}.card{transition:transform .2s ease,box-shadow .2s ease;border-radius:12px}.card:hover{transform:translateY(-2px);box-shadow:0 8px 25px #0000001a!important}.bg-light-rounded{background:linear-gradient(135deg,#f8f9fa,#e9ecef);border-radius:10px;transition:all .3s ease}.bg-light-rounded:hover{transform:translateY(-1px);box-shadow:0 4px 15px #0000001a}.display-5{font-weight:700;letter-spacing:-.5px}.lead{font-weight:300}.fa-comments,.fa-circle,.fa-lock,.fa-mobile-alt{transition:transform .3s ease}.card:hover .fa-comments,.card:hover .fa-circle,.card:hover .fa-lock,.card:hover .fa-mobile-alt{transform:scale(1.1)}.bg-light-rounded{border:1px solid rgba(0,0,0,.05)}@media (max-width: 768px){.display-5{font-size:2.5rem}.card-body{padding:1.5rem}.bg-light-rounded{padding:1rem!important}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.card{animation:fadeInUp .6s ease-out}.card:nth-child(2){animation-delay:.1s}.card:nth-child(3){animation-delay:.2s}.card:nth-child(4){animation-delay:.3s}html{scroll-behavior:smooth}.icons i:hover{transform:scale(1.1);transition:transform .4s ease}