/* ===================================
       SPARTAN NUTRITION — Custom Styles
       Premium Dark Luxury Theme
    =================================== */

    /* Base */
    *, *::before, *::after {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
        scroll-padding-top: 80px;
    }

    body {
        overflow-x: hidden;
    }

    /* Selection */
    ::selection {
        background: rgba(212, 168, 83, 0.3);
        color: #ffffff;
    }

    /* Scrollbar */
    ::-webkit-scrollbar {
        width: 8px;
    }
    ::-webkit-scrollbar-track {
        background: #0a1120;
    }
    ::-webkit-scrollbar-thumb {
        background: #162a4a;
        border-radius: 4px;
    }
    ::-webkit-scrollbar-thumb:hover {
        background: #c9983a;
    }

    /* ===================================
       NAVBAR
    =================================== */
    #navbar {
        backdrop-filter: blur(0px);
        transition: background-color 0.5s ease, backdrop-filter 0.5s ease, padding 0.5s ease;
    }

    #navbar.scrolled {
        background-color: rgba(10, 17, 32, 0.95);
        backdrop-filter: blur(20px);
        box-shadow: 0 1px 0 rgba(212, 168, 83, 0.1);
    }

    #navbar.scrolled .nav-link {
        color: #d1d5db;
    }

    /* ===================================
       SCROLL REVEAL (Progressive Enhancement)
    =================================== */
    @media (prefers-reduced-motion: no-preference) {
        .scroll-reveal {
            opacity: 0;
            transform: translateY(40px);
            transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), 
                        transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .scroll-reveal.revealed {
            opacity: 1;
            transform: translateY(0);
        }

        /* Stagger children */
        .scroll-reveal:nth-child(2) { transition-delay: 0.1s; }
        .scroll-reveal:nth-child(3) { transition-delay: 0.2s; }
        .scroll-reveal:nth-child(4) { transition-delay: 0.3s; }
        .scroll-reveal:nth-child(5) { transition-delay: 0.4s; }
        .scroll-reveal:nth-child(6) { transition-delay: 0.5s; }
    }

    /* Always visible for reduced motion or no-JS */
    @media (prefers-reduced-motion: reduce) {
        .scroll-reveal {
            opacity: 1;
            transform: none;
        }
    }

    /* ===================================
       MOBILE MENU
    =================================== */
    #mobile-menu.open {
        opacity: 1;
        pointer-events: all;
    }

    /* ===================================
       GOLD ACCENT LINES
    =================================== */
    .gold-divider {
        background: linear-gradient(90deg, transparent, #d4a853, transparent);
        height: 1px;
    }

    /* ===================================
       CARD HOVER EFFECTS
    =================================== */
    .product-card {
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), 
                    box-shadow 0.4s ease;
    }

    .product-card:hover {
        transform: translateY(-8px);
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 
                    0 0 0 1px rgba(212, 168, 83, 0.2);
    }

    /* ===================================
       BUTTON RIPPLE
    =================================== */
    .btn-gold {
        position: relative;
        overflow: hidden;
    }

    .btn-gold::after {
        content: '';
        position: absolute;
        inset: 0;
        background: radial-gradient(circle at var(--x, 50%) var(--y, 50%), rgba(255,255,255,0.2), transparent 60%);
        opacity: 0;
        transition: opacity 0.3s;
    }

    .btn-gold:hover::after {
        opacity: 1;
    }

    /* ===================================
       IMAGE OVERLAY GRADIENTS
    =================================== */
    .img-overlay-light {
        background: linear-gradient(to top, rgba(10, 17, 32, 0.8) 0%, transparent 50%);
    }

    /* ===================================
       FOCUS STYLES
    =================================== */
    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    select:focus-visible {
        outline: 2px solid #d4a853;
        outline-offset: 2px;
    }

    /* ===================================
       RESPONSIVE TWEAKS
    =================================== */
    @media (max-width: 768px) {
        html {
            scroll-padding-top: 100px;
        }

        #hero h1 {
            font-size: 2.5rem;
        }

        .floating-badge {
            position: relative;
            margin-top: 1rem;
        }
    }

    @media (max-width: 640px) {
        .font-cinzel {
            letter-spacing: 0.02em;
        }
    }