.main-header {
    background-color: var(--clr-bg-main);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.home-header .header-container {
    margin-bottom: 10px;
}

.home-left-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.main-container {
    position: relative;
    width: 100%;
    height: 80vh; 
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.trust-badges {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 40px;
    padding: 60px 20px;
    background-color: var(--clr-bg-alt);
    border-top: 1px solid var(--clr-border);
    border-bottom: 1px solid var(--clr-border);
}

.category-section, 
.featured-section {
    max-width: 1400px;
    margin: 80px auto;
    padding: 0 20px;
}

.category-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 40px;
}

.category-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--clr-border);
    padding-bottom: 10px;
}

.section-header h2 {
    margin-bottom: 0;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 25px;
}

.mobile-filter-toggle {
    display: none;
    margin: 16px 20px 0;
}

.promo-banner {
    max-width: 1400px;
    margin: 60px auto;
    border-radius: 0;
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('https://images.unsplash.com/photo-1517336714731-489689fd1ca8?auto=format&fit=crop&w=1400&q=80');
    background-size: cover;
    background-position: center;
    padding: 80px 20px;
    text-align: center;
}

.newsletter-section {
    background-color: var(--clr-primary);
    padding: 60px 20px;
    text-align: center;
}

.mega-footer {
    background-color: #111827; 
    color: #9ca3af;
    padding-top: 60px;
}

.footer-top {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px 60px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-bottom {
    background-color: #030712;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.auth-layout, .success-layout {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 70vh;
    padding: 40px 20px;
    background-color: var(--clr-bg-alt);
}

.cart-grid, .checkout-grid {
    display: grid;
    grid-template-columns: 2fr 1fr; 
    gap: 40px;
    align-items: start;
}

@media (max-width: 900px) {
    .cart-grid, .checkout-grid {
        grid-template-columns: 1fr; 
    }

    .cart-layout, .checkout-layout {
        padding: 0 14px !important;
    }
}

@media (max-width: 768px) {
    .header-container {
        flex-direction: row;
        flex-wrap: nowrap;
        justify-content: space-between;
        padding: 10px 15px;
        gap: 12px;
    }

    .home-header .header-container {
        margin-bottom: 6px;
        flex-wrap: wrap;
    }

    .home-left-group {
        gap: 6px;
    }

    .home-header .search-bar {
        order: 3;
        width: 80%;
        max-width: 80%;
        margin: 4px auto 8px;
    }

    .main-container {
        height: 62vh;
        min-height: 420px;
    }

    .section-header {
        align-items: center;
        gap: 10px;
    }

    .trust-badges {
        gap: 20px;
        padding: 30px 16px;
    }

    .category-section,
    .featured-section,
    .promo-banner {
        margin: 40px auto;
        padding-left: 14px;
        padding-right: 14px;
    }

    .shop-container {
        display: block !important;
        padding: 0 14px !important;
        margin: 20px auto !important;
    }

    .mobile-filter-toggle {
        display: inline-flex;
    }

    .filters-sidebar {
        position: fixed !important;
        top: 0 !important;
        left: 0;
        width: min(84vw, 320px) !important;
        height: 100vh;
        overflow-y: auto;
        background: var(--clr-bg-main);
        border-right: 1px solid var(--clr-border);
        padding: 20px 16px 40px;
        z-index: 2000;
        transform: translateX(-101%);
        transition: transform 0.28s ease;
    }

    .filters-sidebar.is-open {
        transform: translateX(0);
    }

    .cart-grid {
        gap: 20px;
    }

    .order-summary-section,
    .cart-items-section,
    .order-summary-card {
        width: 100%;
        margin: 0;
    }

    .footer-top,
    .footer-bottom {
        padding-left: 14px;
        padding-right: 14px;
        text-align: center;
    }

    .footer-bottom {
        justify-content: center;
        gap: 12px;
    }

    .legal-links a {
        margin: 0 8px;
    }
}