/* css/responsive.css — XORONIQ Responsive Overrides */

/* Mobile Nav Drawer & Overlay */
#nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    z-index: 1050;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

#nav-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

/* ─────────────────────────────────────────────
   BREAKPOINT: Large Desktops & Laptops (<= 1200px)
───────────────────────────────────────────── */
@media (max-width: 1200px) {
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .trust-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ─────────────────────────────────────────────
   BREAKPOINT: Tablets (<= 992px)
───────────────────────────────────────────── */
@media (max-width: 992px) {
    .header-nav {
        position: fixed;
        top: 0;
        left: -320px;
        width: 300px;
        height: 100vh;
        background: #FFFFFF;
        box-shadow: var(--shadow-xl);
        z-index: 1100;
        flex-direction: column;
        align-items: flex-start;
        padding: 24px;
        gap: 16px;
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .header-nav.drawer-open {
        transform: translateX(320px);
    }

    .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        color: var(--color-text);
    }

    .hamburger {
        display: flex;
        flex-direction: column;
        gap: 5px;
        width: 22px;
    }

    .hamburger span {
        display: block;
        height: 2.5px;
        width: 100%;
        background-color: currentColor;
        border-radius: var(--radius-full);
    }

    .hero-title {
        font-size: 2.75rem;
    }

    .deal-banner {
        grid-template-columns: 1fr;
        padding: 36px 24px;
    }

    .pdp-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }

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

    .filters-sidebar {
        display: none;
    }

    .filters-sidebar.mobile-open {
        display: block;
        position: fixed;
        inset: 0;
        background: #FFFFFF;
        z-index: 1200;
        overflow-y: auto;
        padding: 24px;
    }
}

/* ─────────────────────────────────────────────
   BREAKPOINT: Mobile Phones (<= 640px)
───────────────────────────────────────────── */
@media (max-width: 640px) {
    .header-search {
        display: none;
    }

    .hero {
        padding: 60px 0 70px;
    }

    .hero-title {
        font-size: 2.15rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-stats {
        gap: 20px;
        flex-wrap: wrap;
    }

    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .product-card-info {
        padding: 12px;
    }

    .product-card-name {
        font-size: 0.8125rem;
        min-height: 36px;
    }

    .price-selling {
        font-size: 1.0625rem;
    }

    .trust-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    /* Mobile Sticky PDP Buy Bar */
    .mobile-sticky-bar {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(12px);
        border-top: 1px solid var(--color-border);
        padding: 12px 16px;
        z-index: 999;
        display: flex;
        align-items: center;
        gap: 12px;
        box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
    }
}