.app-container{max-width:1000px;margin:0 auto;padding:20px;min-height:100vh}.main-header{background-color:#fff;color:#000;padding:15px 25px;display:flex;align-items:center;justify-content:space-between;box-shadow:0 4px 20px #0000000f;border:1px solid rgba(0,0,0,.05);border-radius:16px;margin-bottom:30px}.brand{display:flex;align-items:center;gap:12px;color:#000;font-weight:900;font-size:1.2rem;letter-spacing:-.5px}.main-nav{display:flex;align-items:center;gap:10px}.nav-link{color:#000!important;text-decoration:none;font-size:.95rem;font-weight:500;padding:8px 16px;border-radius:8px;opacity:.6;transition:all .2s ease}.nav-link:hover,.nav-link.active{opacity:1;font-weight:800;background-color:#f5f5f5}.btn-logout{background-color:#000;color:#fff;border:none;padding:10px 20px;border-radius:10px;font-weight:700;font-size:.85rem;cursor:pointer;margin-left:15px;transition:transform .2s,background-color .2s}.btn-logout:hover{background-color:#d32f2f;transform:scale(1.05)}@media(max-width:768px){.main-header{flex-direction:column;gap:15px;padding:20px}.main-nav{width:100%;justify-content:center;flex-wrap:wrap}}.notification-container{position:relative}.notifications-dropdown{position:absolute;top:100%;right:0;width:300px;max-width:90vw;z-index:1000;background:#fff;border-radius:8px;box-shadow:0 4px 12px #00000026;overflow:hidden}@media(max-width:480px){.notifications-dropdown{right:-60px;width:85vw}}