:root{--primary-color:#0b1e5a;--primary-hover-color:#33478b;--sidebar-bg:linear-gradient(180deg, #ffffff 0%, #f1f3f8 100%);--sidebar-link-color:#333;--sidebar-hover-bg:#e8ebf7;--sidebar-active-bg:#d6def8;--sidebar-shadow:0 4px 8px rgba(0, 0, 0, 0.1)}body{height:100%;margin:0;padding:0;overflow:hidden;display:flex;flex-direction:column}html{height:100%;margin:0;padding:0;overflow:hidden;display:flex;flex-direction:column}.profile-header{background-color:var(--primary-color);color:#fff;width:100%;height:60px;border-radius:0;flex-shrink:0;position:fixed;top:0;left:0;z-index:1100;display:flex;align-items:center;justify-content:space-between;padding:0 1rem}.layout-wrapper{padding-top:60px}.sidebar{position:fixed;top:60px;left:0;width:260px;height:calc(100vh - 60px);overflow-y:auto;background:var(--sidebar-bg);border-right:1px solid #dee2e6;box-shadow:var(--sidebar-shadow);z-index:1000;padding:1rem}.main-content{width:-webkit-fill-available;margin-left:260px;height:calc(100vh - 60px);overflow-y:auto;padding:1rem}@media (max-width:767.98px){.sidebar{display:none}.main-content{margin-left:0}}.sidebar a{display:flex;align-items:center;gap:.8rem;padding:.75rem 1rem;color:var(--sidebar-link-color);text-decoration:none;border-radius:8px;font-weight:500;margin-bottom:.3rem;transition:all .2s ease;font-size:.95rem}.sidebar a i{font-size:1.1rem;color:var(--primary-color);transition:transform .3s ease,color .3s ease}.sidebar a:hover{background-color:var(--sidebar-hover-bg);color:var(--primary-color);font-weight:600;transform:translateX(3px)}.sidebar a:hover i{color:var(--primary-hover-color);transform:scale(1.1)}.sidebar a.active{background-color:var(--sidebar-active-bg);font-weight:600;color:var(--primary-color)}.sidebar a.active i{color:var(--primary-color)}@media (max-width:767.98px){.main-content{padding:unset;padding-bottom:90px}.container{padding-left:0!important;padding-right:0!important}}.container{max-width:-webkit-fill-available!important}.container-sm{max-width:-webkit-fill-available!important}.container-md{max-width:-webkit-fill-available!important}.container-lg{max-width:-webkit-fill-available!important}.container-xl{max-width:-webkit-fill-available!important}.container-xxl{max-width:-webkit-fill-available!important}.navbar.fixed-bottom{border-top:1px solid #dee2e6;box-shadow:var(--sidebar-shadow);background:#fff;z-index:1050}.navbar.fixed-bottom .nav-link{align-items:center;color:var(--sidebar-link-color);font-size:.85rem;font-weight:500;padding:.6rem .4rem;text-decoration:none;transition:all .3s ease;border-radius:8px}.navbar.fixed-bottom .nav-link i{font-size:1.1rem;color:var(--primary-color);transition:transform .3s ease,color .3s ease}.navbar.fixed-bottom .nav-link:hover{background-color:var(--sidebar-hover-bg);color:var(--primary-color);font-weight:600;transform:translateY(-2px)}.navbar.fixed-bottom .nav-link:hover i{color:var(--primary-hover-color);transform:scale(1.1)}.navbar.fixed-bottom .nav-link.active{background-color:var(--sidebar-active-bg);color:var(--primary-color);font-weight:600}.navbar.fixed-bottom .nav-link.active i{color:var(--primary-color)}.chat-list-item{padding:12px 15px;border-bottom:1px solid #dee2e6;cursor:pointer;transition:all .2s ease;background-color:#fff;margin-bottom:.25rem;border-radius:8px}.chat-list-item:hover{background-color:var(--sidebar-hover-bg);transform:translateX(3px);box-shadow:0 2px 4px rgba(0,0,0,.05)}.avatar{width:50px;height:50px;border-radius:50%;margin-right:15px;object-fit:cover;border:2px solid var(--primary-color)}.name{font-weight:600;margin-bottom:2px;color:var(--primary-color)}.last-message{color:#6c757d;font-size:.875rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:calc(100% - 60px)}.message-time{font-size:.75rem;white-space:nowrap;color:#6c757d;font-weight:500}.messages-card{background:#f6f8ff;border:none;border-radius:10px;box-shadow:var(--sidebar-shadow)}.messages-card .card-body{padding:1.5rem}.messages-card h3{color:var(--primary-color);font-weight:700;margin-bottom:1.5rem;padding-bottom:.75rem;border-bottom:1px solid #dee2e6}#messagesContainer:empty::before{content:"No messages yet";display:block;text-align:center;color:#6c757d;padding:2rem;font-style:italic}.chat-list-item.unread .last-message,.chat-list-item.unread .name{font-weight:700;color:var(--primary-color)}.unread-badge{font-size:.75rem;padding:.25em .5em;border-radius:10px}@media (max-width:767.98px){.chat-list-item{padding:10px;margin-bottom:10px;border-radius:0}.avatar{width:40px;height:40px;margin-right:10px}.last-message{max-width:calc(100% - 50px)}}