* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            background: linear-gradient(135deg, #000000 0%, #000000 100%);
            background: linear-gradient(135deg, #f5f7fa 0%, #ffffff 100%);
            min-height: 100vh;
            padding: 20px;
            color: #333;
            line-height: 1.6;
        }
        
        .container {
            max-width: 1200px;
            margin: 0px auto;
            padding: 20px;
        }
        
        header {
            
            margin-bottom: 40px;
            padding: 20px;
            background-color: rgba(255, 255, 255, 0.85);
            border-radius: 15px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
        }
        
        h1 {
            color: black;
            margin-bottom: 10px;
            font-size: 2.5rem;
        }
        
        .subtitle {
            color: #7f8c8d;
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto;
        }
        
        .content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin-bottom: 40px;
        }
        
        .card {
                background-color: rgba(255, 255, 255, 0.85);
            border-radius: 15px;
            padding: 25px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
        }
        
        .card h2 {
            color: #3498db;
            margin-bottom: 15px;
            border-bottom: 2px solid #f1f1f1;
            padding-bottom: 10px;
        }
        
        .card p {
            color: #555;
            margin-bottom: 15px;
        }
        
        /* Floating action button */
        .float-btn {
            position: fixed;
            right: 30px;
            bottom: 120px;
            width: 70px;
            height: 70px;
            border-radius: 50%;
            background: linear-gradient(135deg, #3498db 0%, #2c3e50 100%);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            cursor: pointer;
            box-shadow: 0 5px 20px rgba(52, 152, 219, 0.5);
            z-index: 100;
            transition: all 0.3s ease;
        }
        
        .float-btn:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 25px rgba(52, 152, 219, 0.7);
        }
        
        /* Overlay */
        .overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }
        
        .overlay.active {
            opacity: 1;
            visibility: visible;
        }
        
        /* Menu container */
        .menu-container {
            position: fixed;
            top: 0;
            right: -80%;
           
            height: 100%;
            /*background: linear-gradient(135deg, #2c3e50 0%, #1a2530 100%);*/
           
            background: #2a3440;
            z-index: 1001;
            transition: right 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.1);
            overflow-y: auto;
            padding: 30px;
            box-shadow: -5px 0 25px rgba(0, 0, 0, 0.2);
        }
        
        .menu-container.active {
            right: 0;
        }
        
        .menu-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 40px;
            padding-bottom: 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .menu-title {
            color: white;
            font-size: 1.8rem;
        }
        
        .close-menu {
            background: none;
            border: none;
            color: white;
            font-size: 24px;
            cursor: pointer;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background-color 0.2s;
        }
        
        .close-menu:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        
        .menu-items {
            display: flex;
            flex-direction: column;
            gap: 3px;
        }
        
        .menu-item {
            display: flex;
            align-items: center;
            padding: 20px;
            background-color: rgba(255, 255, 255, 0.05);
            border-radius: 10px;
            color: white;
            text-decoration: none;
            transition: all 0.3s ease;
            cursor: pointer;
        }
        
        .menu-item:hover {
            background-color: rgba(255, 255, 255, 0.1);
            transform: translateX(5px);
        }
        
        .menu-icon {
            font-size: 24px;
            width: 50px;
            text-align: center;
            margin-right: 15px;
        }
        
        .menu-text {
            flex: 1;
        }
        
        .menu-text h3 {
            font-size: 1.2rem;
            margin-bottom: 5px;
            color: white;
        }
        
        .menu-text p {
            font-size: 1.2em;
            color: rgba(255, 255, 255, 0.7);
        }
        
        /* Footer */
        footer {
            text-align: center;
            padding: 20px;
            margin-top: 40px;
            color: #ffffff;
            font-size: 0.9rem;
            border-top: 1px solid rgba(0, 0, 0, 0.1);
        }
        
        /* Responsive adjustments */
        @media (max-width: 768px) {
            .menu-container {
                width: 90%;
                right: -90%;
            }
            
            .float-btn {
                width: 60px;
                height: 60px;
                font-size: 24px;
                right: 30px;
                bottom: 100px;
            }
            
            h1 {
                font-size: 2rem;
            }
        }
        
        @media (max-width: 480px) {
            .menu-container {
                width: 100%;
                right: -100%;
            }
            
            .menu-header {
                flex-direction: column;
                align-items: flex-start;
                gap: 15px;
            }
            
            .float-btn {
                width: 55px;
                height: 55px;
                font-size: 22px;
            }
        }