* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            padding-top: 80px;
        }

        .navbar {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.2);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        }

        .navbar-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: #5865F2;
            font-size: 1.8rem;
            font-weight: bold;
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        }

        .navbar-brand:hover {
            color: #4752C4;
            transition: color 0.3s ease;
        }

        .navbar-nav {
            display: flex;
            align-items: center;
            gap: 30px;
        }

        .nav-item {
            position: relative;
        }

        .nav-link {
            color: #666;
            text-decoration: none;
            font-weight: 500;
            font-size: 1rem;
            padding: 8px 16px;
            border-radius: 20px;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-link:hover {
            color: #5865F2;
            background: rgba(88, 101, 242, 0.1);
            transform: translateY(-1px);
        }

        .nav-link.active {
            color: #5865F2;
            background: rgba(88, 101, 242, 0.15);
        }

        .navbar-actions {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .search-container {
            position: relative;
        }

        .search-icon {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: #999;
            font-size: 0.9rem;
        }

        .notification-btn {
            text-decoration: none;
            position: relative;
            background: none;
            border: none;
            color: #666;
            font-size: 1.2rem;
            cursor: pointer;
            padding: 10px;
            border-radius: 50%;
            transition: all 0.3s ease;
            width: 45px;
            height: 45px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .notification-btn:hover {
            color: #5865F2;
            background: rgba(88, 101, 242, 0.1);
            transform: scale(1.05);
        }

        .notification-btn.active {
            color: #5865F2;
            background: rgba(88, 101, 242, 0.15);
        }



        .notification-badge {
            position: absolute;
            top: 5px;
            right: 5px;
            background: #dc3545;
            color: white;
            font-size: 0.7rem;
            font-weight: bold;
            border-radius: 50%;
            width: 18px;
            height: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            animation: pulse 2s infinite;
        }

        .profile-container {
            position: relative;
        }

        .profile-btn {
            background: none;
            border: none;
            cursor: pointer;
            border-radius: 50%;
            overflow: hidden;
            width: 45px;
            height: 45px;
            transition: all 0.3s ease;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

        .profile-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 4px 15px rgba(88, 101, 242, 0.3);
        }

        .profile-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 50%;
        }

        .profile-dropdown {
            position: absolute;
            top: 100%;
            right: 0;
            margin-top: 10px;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            border: 1px solid rgba(255, 255, 255, 0.2);
            min-width: 200px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-10px);
            transition: all 0.3s ease;
        }

        .profile-dropdown.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .dropdown-item {
            display: block;
            padding: 12px 20px;
            color: #666;
            text-decoration: none;
            font-size: 0.9rem;
            transition: all 0.3s ease;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }

        .dropdown-item:hover {
            background: rgba(88, 101, 242, 0.1);
            color: #5865F2;
        }

        .dropdown-item:last-child {
            border-bottom: none;
        }

        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: #666;
            font-size: 1.5rem;
            cursor: pointer;
            padding: 10px;
            border-radius: 8px;
            transition: all 0.3s ease;
        }

        .mobile-menu-btn:hover {
            color: #5865F2;
            background: rgba(88, 101, 242, 0.1);
        }

        /* Flash Messages */
        .flash-container {
            position: fixed;
            top: 80px;
            right: 20px;
            z-index: 1100;
            max-width: 400px;
        }
        
        .flash {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 16px 20px;
            margin-bottom: 10px;
            border-radius: 12px;
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            font-size: 0.9rem;
            font-weight: 500;
            animation: slideInRight 0.4s ease-out;
            position: relative;
        }
        
        .flash-notice {
            background: rgba(40, 167, 69, 0.9);
            color: white;
            border-left: 4px solid #28a745;
        }
        
        .flash-alert {
            background: rgba(220, 53, 69, 0.9);
            color: white;
            border-left: 4px solid #dc3545;
        }
        
        .flash-success {
            background: rgba(40, 167, 69, 0.9);
            color: white;
            border-left: 4px solid #28a745;
        }
        
        .flash-error {
            background: rgba(220, 53, 69, 0.9);
            color: white;
            border-left: 4px solid #dc3545;
        }
        
        .flash-warning {
            background: rgba(255, 193, 7, 0.9);
            color: #856404;
            border-left: 4px solid #ffc107;
        }
        
        .flash-close {
            background: none;
            border: none;
            color: inherit;
            cursor: pointer;
            font-size: 0.8rem;
            padding: 4px;
            border-radius: 50%;
            transition: all 0.3s ease;
            margin-left: auto;
        }
        
        .flash-close:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: scale(1.1);
        }
        
        @keyframes slideInRight {
            from {
                transform: translateX(100%);
                opacity: 0;
            }
            to {
                transform: translateX(0);
                opacity: 1;
            }
        }
        
        /* Auto-hide nach 5 Sekunden */
        .flash {
            animation: slideInRight 0.4s ease-out, fadeOut 0.5s ease-in 4.5s forwards;
        }
        
        @keyframes fadeOut {
            to {
                opacity: 0;
                transform: translateX(100%);
            }
        }

        @media (max-width: 768px) {
            .flash-container {
                right: 10px;
                left: 10px;
                max-width: none;
            }
            
            .flash {
                font-size: 0.8rem;
                padding: 12px 16px;
            }
        }