/* Section 2: Overview Theme */
    .diagonal-bg-section {
        position: relative;
        background: #f8fafc;
        overflow: hidden;
    }

    /* Section 3: CTA */
    .navy-gradient-section {
        position: relative;
        background: linear-gradient(to right, rgba(2, 6, 23, 0.6) 0%, rgba(2, 6, 23, 0.9) 100%),
            url("../images/Businessman_person.a25b86b28202.avif");
        background-size: cover;
        background-position: center;
        background-attachment: fixed;
    }

    /* Combined Container for Benefits & Strategy */
    .combined-wave-container {
        position: relative;
        display: flex;
        flex-direction: column;
        width: 100%;
    }

    /* Background Underlay - Fixed to height of parent */
    .wave-bg-underlay {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        z-index: 1;
        display: flex;
        flex-direction: column;
    }

    .bg-part-4 {
        flex: 1;
        /* Grows with Benefits section */
        background: radial-gradient(circle at top right, #1e293b, #0f172a);
    }

    .bg-part-5 {
        flex: 0 0 auto;
        /* Maintains natural height of Strategy section */
        min-height: 600px;
        background: #f1f5f9;
        background-image: radial-gradient(#cbd5e1 1px, transparent 1px);
        background-size: 30px 30px;
    }

    /* Diagonal Sea Wave Animation (Z-index between BG and Content) */
    .sea-waves {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        pointer-events: none;
        z-index: 2;
        opacity: 0.25;
    }

    .wave-line {
        fill: none;
        stroke-width: 4;
        stroke-linecap: round;
        stroke-dasharray: 1500;
        stroke-dashoffset: 1500;
        animation: waveFlow 12s linear 3;
    }

    @keyframes waveFlow {
        to {
            stroke-dashoffset: -1500;
        }
    }

    .content-layer {
        position: relative;
        z-index: 3;
        /* Above waves */
    }

    .accordion-content {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .accordion-item.active .accordion-content {
        max-height: 1000px;
        /* Increased for safety */
    }

    .accordion-item.active .chevron-icon {
        transform: rotate(180deg);
    }

    .glass-card {
        background: rgba(255, 255, 255, 0.05);
        backdrop-filter: blur(8px);
        border: 1px solid rgba(255, 255, 255, 0.1);
        transition: all 0.3s ease;
    }

    .glass-card:hover {
        background: rgba(255, 255, 255, 0.08);
        border-color: rgba(255, 255, 255, 0.2);
    }

    /* 3D Cards */
    .card-carousel {
        perspective: 1200px;
        height: 400px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .card-spinner {
        width: 300px;
        height: 180px;
        position: relative;
        transform-style: preserve-3d;
        animation: rotateCards 25s linear 3;
    }

    .card-3d {
        position: absolute;
        width: 300px;
        height: 180px;
        border-radius: 16px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        padding: 20px;
        color: white;
        backface-visibility: visible;
    }

    .card-3d-1 {
        transform: rotateY(0deg) translateZ(250px);
        background: linear-gradient(135deg, #0f172a, #334155);
    }

    .card-3d-2 {
        transform: rotateY(120deg) translateZ(250px);
        background: linear-gradient(135deg, #7f1d1d, #b91c1c);
    }

    .card-3d-3 {
        transform: rotateY(240deg) translateZ(250px);
        background: linear-gradient(135deg, #075985, #0369a1);
    }

    @keyframes rotateCards {
        from {
            transform: rotateY(0deg);
        }

        to {
            transform: rotateY(360deg);
        }
    }

    /* Gradient CTA button */
    .btn-pop1 {
        background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
        transition: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
    }

    .btn-pop1:hover {
        background: linear-gradient(135deg, #1e40af 0%, #1d4ed8 100%);
        box-shadow: 0 12px 35px rgba(37, 99, 235, 0.6);
        transform: scale(1.04) translateY(-2px);
    }

    /* ==========================================================
   MOBILE PERFORMANCE OPTIMISATIONS
========================================================== */

    @media (max-width: 768px) {

        /* Disable continuous 3D card rotation */
        .card-spinner {
            animation: none !important;
            transform: none !important;
        }

        /* Disable continuous SVG wave animation */
        .wave-line {
            animation: none !important;
        }

        /* Remove expensive blur on mobile */
        .glass-card,
        .backdrop-blur-md,
        .backdrop-blur-lg,
        .backdrop-blur-xl,
        [class*="backdrop-blur"] {
            backdrop-filter: none !important;
            -webkit-backdrop-filter: none !important;
        }

        /* Avoid fixed background rendering on mobile */
        .navy-gradient-section {
            background-attachment: scroll !important;
        }

        /* Disable hover transforms on touch devices */
        .btn-pop1:hover {
            transform: none !important;
            box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
        }

        .arrow-btn:hover i {
            transform: none !important;
            transition: none !important;
        }
    }

    @media (prefers-reduced-motion: reduce) {

        .wave-line,
        .card-spinner {
            animation: none !important;
        }
    }