@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');
        body { font-family: 'Inter', sans-serif; }

        html {
            scroll-padding-top: 5rem;
        }

        .card-glow {
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .card-glow:hover {
            box-shadow: 0 0 30px rgba(6, 182, 212, 0.15), 0 0 60px rgba(139, 92, 246, 0.1);
            border-color: rgba(6, 182, 212, 0.5);
            transform: translateY(-2px);
        }

        .arrow-btn {
            transition: all 0.2s ease;
        }
        .arrow-btn:hover {
            transform: scale(1.15);
            background: rgba(6, 182, 212, 0.2);
        }
        .arrow-btn:active {
            transform: scale(0.95);
        }

        .card-transition {
            transition: opacity 0.4s ease, transform 0.4s ease;
        }
        .card-enter-up {
            opacity: 0;
            transform: translateY(30px) scale(0.95);
        }
        .card-enter-down {
            opacity: 0;
            transform: translateY(-30px) scale(0.95);
        }
        .card-active {
            opacity: 1;
            transform: translateY(0) scale(1);
        }
        .card-exit {
            opacity: 0;
            transform: scale(0.95);
            pointer-events: none;
        }

        .expanded-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
            opacity: 0;
        }
        .expanded-content.open {
            max-height: 800px;
            opacity: 1;
        }

        .gradient-text {
            background: linear-gradient(135deg, #06b6d4, #8b5cf6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-blur {
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            background: rgba(15, 23, 42, 0.8);
        }

        .encap-tag {
            transition: all 0.2s ease;
        }
        .encap-tag:hover {
            background: rgba(6, 182, 212, 0.15);
            transform: translateX(2px);
        }

        .progress-num {
            transition: all 0.3s ease;
            width: 32px;
            height: 32px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-size: 0.75rem;
            font-weight: 600;
            cursor: pointer;
        }
        .progress-num.active {
            background: linear-gradient(135deg, #06b6d4, #8b5cf6);
            color: white;
            transform: scale(1.15);
            box-shadow: 0 0 12px rgba(6, 182, 212, 0.4);
        }
        .progress-num:not(.active) {
            background: rgba(51, 65, 85, 0.5);
            color: #94a3b8;
        }
        .progress-num:not(.active):hover {
            background: rgba(51, 65, 85, 0.8);
            color: #e2e8f0;
        }