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


        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            padding: 40px 20px;
            min-height: 100vh;

        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 40px;
            flex-wrap: wrap;
            gap: 20px;
        }

        h1 {
            font-size: 32px;
            font-weight: 700;
            color: #fff;
            margin: 0;
        }

        .access-btn {
            padding: 12px 24px;
            background: linear-gradient(135deg, #899bec 0%, #488dca 100%);
            color: white;
            text-decoration: none;
            border-radius: 8px;
            font-weight: 600;
            font-size: 14px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
        }

        .access-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
        }

        .access-btn i {
            margin-right: 8px;
        }

        .grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .card {
            position: relative;
            padding: 32px;
            border-radius: 16px;
            background: white;
            box-shadow: 0 5px 8px rgba(0, 0, 0, 0.07);
            overflow: hidden;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            cursor: pointer;
            text-decoration: none;
            display: block;
            min-height: 160px;
        }

        .card:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);

        }

        .card-icon {
            position: absolute;
            top: 24px;
            right: 24px;
            font-size: 32px;
            opacity: 0.3;
            transition: all 0.3s ease;
        }

        .card:hover .card-icon {
            opacity: 0.6;
            transform: scale(1.1);
        }

        .card-title {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
            color: inherit;
        }

        .card-description {
            font-size: 14px;
            line-height: 1.6;
            opacity: 0.85;
            margin-bottom: 20px;
            color: inherit;
        }

        .card-arrow {
            position: absolute;
            bottom: 24px;
            left: 32px;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            transition: all 0.3s ease;
        }

        .card:hover .card-arrow {
            transform: translateX(8px);
        }

        .card-decoration {
            position: absolute;
            bottom: 0;
            right: 0;
            width: 160px;
            height: 160px;
            opacity: 0.4;
            transition: all 0.4s ease;
        }

        .card:hover .card-decoration {
            opacity: 0.6;
            transform: scale(1.05);
        }

        /* Card Colors */
        .card-dashboard {
            background: linear-gradient(135deg, #2d9f87 0%, #1f8170 100%);
            color: white;
        }

        .card-datasets {
            background: linear-gradient(135deg, #ffeaa7 0%, #fdcb6e 100%);
            color: #2d3436;
        }

        .card-users {
            background: linear-gradient(135deg, #ffb6b9 0%, #ff8b94 100%);
            color: white;
        }

        .card-realtime {
            background: linear-gradient(135deg, #dfe6e9 0%, #b2bec3 100%);
            color: #2d3436;
        }

        .card-billing {
            background: linear-gradient(135deg, #74b9ff 0%, #0984e3 100%);
            color: white;
        }

        .card-campaign {
            background: linear-gradient(135deg, #f7b267 0%, #f08d31 100%);
            color: #2d3436;
        }

        .card-analytics {
            background: linear-gradient(135deg, #a29bfe 0%, #6c5ce7 100%);
            color: white;
        }

        .card-settings {
            background: linear-gradient(135deg, #722F37 0%, #920b2d 100%);
            color: white;
        }

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .card {
            animation: fadeInUp 0.6s ease backwards;
        }

        .card:nth-child(1) { animation-delay: 0.1s; }
        .card:nth-child(2) { animation-delay: 0.2s; }
        .card:nth-child(3) { animation-delay: 0.3s; }
        .card:nth-child(4) { animation-delay: 0.4s; }
        .card:nth-child(5) { animation-delay: 0.5s; }
        .card:nth-child(6) { animation-delay: 0.6s; }
        .card:nth-child(7) { animation-delay: 0.7s; }
        .card:nth-child(8) { animation-delay: 0.8s; }

        /* Decorative Circles */
        .circles {
            position: absolute;
            bottom: -20px;
            right: -20px;
        }

        .circle {
            border-radius: 50%;
            position: absolute;
            opacity: 0.3;
        }

        .circle-1 {
            width: 100px;
            height: 100px;
            background: rgba(255, 255, 255, 0.4);
            bottom: 20px;
            right: 20px;
        }

        .circle-2 {
            width: 60px;
            height: 60px;
            background: rgba(255, 255, 255, 0.3);
            bottom: 60px;
            right: 80px;
        }

        .circle-3 {
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.2);
            bottom: 100px;
            right: 40px;
        }

        /* Layers decoration */
        .layers {
            position: absolute;
            bottom: 10px;
            right: 10px;
            width: 140px;
            height: 140px;
        }

        .layer {
            position: absolute;
            width: 80px;
            height: 15px;
            border-radius: 8px;
            opacity: 0.5;
        }

        .layer:nth-child(1) { bottom: 0; right: 0; }
        .layer:nth-child(2) { bottom: 20px; right: 10px; }
        .layer:nth-child(3) { bottom: 40px; right: 20px; }
        .layer:nth-child(4) { bottom: 60px; right: 30px; }
        .layer:nth-child(5) { bottom: 80px; right: 40px; }

        .datasets-layers .layer { background: rgba(241, 196, 15, 0.7); }
        .users-layers .layer { background: rgba(255, 118, 117, 0.7); }

        /* Responsive */
        @media (max-width: 768px) {
            .header {
                margin-bottom: 24px;
            }

            h1 {
                font-size: 24px;
            }

            .access-btn {
                font-size: 13px;
                padding: 10px 20px;
            }

            .grid {
                grid-template-columns: 1fr;
            }

            .card {
                min-height: 220px;
            }
        }