/**
 * SEPETTR — Kapsamlı Responsive & Mobil Tasarım Sistemi
 * Ekran Kırılımları: 1920px, 1440px, 1200px, 1024px, 768px, 480px, 360px
 */

/* ==================================================== */
/* 1. Global Responsive Grid ve Düzen Sınıfları        */
/* ==================================================== */
.responsive-two-col {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 32px;
    align-items: flex-start;
}

.catalog-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 32px;
    align-items: flex-start;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 40px;
    align-items: flex-start;
}

.campaign-banners-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.cart-table-header {
    display: grid;
    grid-template-columns: 3.5fr 1.5fr 1.5fr 44px;
    gap: 16px;
    padding: 18px 24px;
    border-bottom: 1px solid var(--border-color);
    font-weight: 700;
    font-size: 14px;
    color: var(--text-secondary);
}

.cart-item-row {
    display: grid;
    grid-template-columns: 3.5fr 1.5fr 1.5fr 44px;
    gap: 16px;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
}

.messages-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    min-height: 580px;
}

.mobile-filter-toggle {
    display: none;
    width: 100%;
    margin-bottom: 16px;
}

/* Mobil Menü Butonu */
.mobile-menu-toggle {
    display: none;
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 18px;
    transition: all var(--transition-fast);
}

.mobile-menu-toggle:hover {
    color: var(--primary);
    border-color: var(--primary);
}

/* Mobil Çekmece Menü (Drawer) */
.mobile-drawer {
    position: fixed;
    top: 0;
    left: -320px;
    width: 300px;
    height: 100vh;
    background: var(--bg-card);
    z-index: 3000;
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    transition: left var(--transition-normal);
    border-right: 1px solid var(--border-color);
}

.mobile-drawer.open {
    left: 0;
}

.mobile-drawer-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.mobile-drawer-body {
    padding: 20px;
    flex: 1;
    overflow-y: auto;
}

.mobile-nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 15px;
    transition: all var(--transition-fast);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
    background: var(--primary-subtle);
    color: var(--primary);
}

.mobile-drawer-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
    z-index: 2990;
    display: none;
}

.mobile-drawer-backdrop.show {
    display: block;
}

/* ==================================================== */
/* 1024px Kırılımı (Tablet / Küçük Laptop)              */
/* ==================================================== */
@media (max-width: 1024px) {
    .nav-links {
        display: none !important;
    }

    .nav-subbar {
        display: none !important;
    }

    .desktop-only {
        display: none !important;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 32px;
        text-align: center;
    }

    .hero-badge {
        margin: 0 auto 16px auto;
    }

    .hero-title {
        font-size: 38px;
    }

    .hero-description {
        margin: 0 auto 28px auto;
    }

    .hero-search-box {
        margin: 0 auto;
    }

    .hero-stats {
        justify-content: center;
    }

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

    .catalog-filter-sidebar {
        display: none;
        margin-bottom: 24px;
        position: static !important;
    }

    .catalog-filter-sidebar.open {
        display: block;
    }

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

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

    .responsive-two-col {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .campaign-banners-grid {
        grid-template-columns: 1fr;
    }

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

/* ==================================================== */
/* 768px Kırılımı (Büyük Mobil / Küçük Tablet)          */
/* ==================================================== */
@media (max-width: 768px) {
    .navbar-main {
        height: 60px;
        gap: 10px;
    }

    .brand-logo img {
        height: 32px;
    }

    .header-search {
        display: none !important;
    }

    .mobile-header-search {
        display: block !important;
    }

    .user-balance-badge {
        display: none !important;
    }

    .user-name-text {
        display: none !important;
    }

    .header-actions {
        gap: 8px;
    }

    .action-icon-btn, .theme-toggle-btn {
        width: 36px;
        height: 36px;
    }

    .user-avatar-btn {
        padding: 2px;
    }

    .user-avatar-btn img {
        width: 32px;
        height: 32px;
    }

    .user-avatar-btn i {
        display: none;
    }

    .hero-title {
        font-size: 30px;
    }

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

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

    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }

    .product-card .product-title {
        font-size: 13px;
        height: 36px;
    }

    .product-footer-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .btn-add-cart {
        width: 100%;
        justify-content: center;
    }

    /* Sepet Tablosunu Mobilde Kart Düzenine Dönüştür */
    .cart-table-header {
        display: none;
    }

    .cart-item-row {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
        gap: 14px;
        padding: 16px;
        position: relative;
    }

    .cart-item-product {
        width: 100%;
        padding-right: 44px;
    }

    .cart-item-remove {
        position: absolute;
        top: 16px;
        right: 16px;
    }

    .cart-item-qty {
        justify-content: flex-start !important;
    }

    .cart-item-price {
        margin-left: auto;
        text-align: right;
    }

    /* Mesajlaşma Ekranı Mobilde */
    .messages-layout {
        grid-template-columns: 1fr;
    }

    .messages-contacts-col {
        max-height: 220px;
        overflow-y: auto;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .product-tab-btn {
        padding: 12px 16px !important;
        font-size: 13px !important;
    }
}

/* ==================================================== */
/* 480px & 360px Kırılımı (Akıllı Telefonlar)           */
/* ==================================================== */
@media (max-width: 480px) {
    .container {
        padding-left: 14px;
        padding-right: 14px;
    }

    .hero-title {
        font-size: 24px;
    }

    .hero-description {
        font-size: 14px;
    }

    .hero-search-box {
        flex-direction: column;
        border-radius: var(--radius-lg);
        padding: 8px;
    }

    .hero-search-box button {
        width: 100%;
        margin-top: 6px;
    }

    .category-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .category-card {
        padding: 14px 10px;
    }

    .category-icon-wrap {
        width: 48px;
        height: 48px;
        margin-bottom: 8px;
    }

    .product-grid {
        grid-template-columns: 1fr;
    }

    .stores-grid {
        grid-template-columns: 1fr;
    }

    .btn-lg {
        padding: 12px 20px;
        font-size: 14px;
    }

    /* Modal Tam Ekran Uyum */
    .modal-dialog {
        max-width: 96vw !important;
        margin: 10px auto;
    }

    .modal-body {
        padding: 16px;
    }

    .modal-footer {
        padding: 12px 16px;
    }
}