/* ===================================
   Responsive Styles
   =================================== */

/* Tablet and Below (< 1024px) */
@media (max-width: 1024px) {
    .cart-layout,
    .contact-layout {
        grid-template-columns: 1fr;
    }

    .contact-info {
        position: static;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }

    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }

    .footer__content {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer__section:last-child {
        grid-column: 1 / -1;
    }
}

/* Tablet (640px - 1024px) */
@media (min-width: 640px) and (max-width: 1024px) {
    .hero__title {
        font-size: var(--text-4xl);
    }

    .hero__subtitle {
        font-size: var(--text-lg);
    }

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

    .cart-summary {
        position: static;
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-base);
    }

    .cart-items {
        padding-bottom: var(--spacing-md);
    }
}

/* Mobile and Below (< 640px) */
@media (max-width: 640px) {
    /* Header - Mobile Menu */
    .header__content {
        flex-wrap: wrap;
        position: relative;
    }

    .hamburger {
        display: flex;
        order: 3;
    }

    .nav {
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: var(--bg-primary);
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: max-height var(--transition-base), opacity var(--transition-base);
    }

    .nav.active {
        max-height: 300px;
        opacity: 1;
    }

    .nav__list {
        flex-direction: column;
        padding: var(--spacing-md);
        gap: 0;
    }

    .nav__item {
        width: 100%;
    }

    .nav__link {
        display: block;
        width: 100%;
        padding: var(--spacing-md);
    }

    .cart-icon {
        order: 2;
    }

    /* Hero */
    .hero {
        padding: calc(var(--spacing-2xl) + var(--hero-mobile-padding-top-offset)) 0 var(--spacing-2xl) 0;
        min-height: var(--hero-mobile-min-height);
    }

    .hero__logo {
        max-width: var(--hero-logo-mobile-max-width);
    }

    .hero__title {
        font-size: var(--text-3xl);
    }

    .hero__subtitle {
        font-size: var(--text-lg);
    }

    /* Features */
    .features-section {
        padding: var(--spacing-2xl) 0;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .feature-card {
        padding: var(--spacing-lg);
    }

    .feature-card__icon {
        width: var(--feature-icon-mobile-size);
        height: var(--feature-icon-mobile-size);
    }

    .feature-card__icon svg {
        width: var(--feature-icon-mobile-svg-size);
        height: var(--feature-icon-mobile-svg-size);
    }

    /* Typography */
    .page-title {
        font-size: var(--text-3xl);
    }

    .section-title {
        font-size: var(--text-2xl);
    }

    /* Products */
    .products-section {
        padding: var(--spacing-xl) 0;
    }

    .category-filters {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding: var(--spacing-sm) var(--spacing-md);
        margin: var(--spacing-md) 0;
        -webkit-overflow-scrolling: touch;
        position: relative;
    }

    /* Scroll indicator gradient */
    .category-filters::after {
        content: '';
        position: absolute;
        top: 0;
        right: 0;
        bottom: 0;
        width: 40px;
        background: linear-gradient(to left, var(--bg-secondary), transparent);
        pointer-events: none;
        z-index: 1;
    }

    .category-btn {
        /* Reset and base properties */
        all: unset;
        box-sizing: border-box;

        /* Display and layout */
        display: inline-flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        position: relative;
        z-index: 2;

        /* Sizing */
        min-height: 44px;
        padding: 10px 16px;

        /* Typography */
        font-family: var(--font-family);
        font-size: 0.875rem; /* 14px */
        font-weight: var(--font-medium);
        color: var(--text-primary);
        text-align: center;
        white-space: nowrap;
        line-height: 1.5;

        /* Visual styling */
        background-color: var(--bg-primary);
        border: 2px solid var(--border-color);
        border-radius: var(--radius-full);

        /* Interaction */
        cursor: pointer;
        user-select: none;
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;

        /* Transitions */
        transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.1s ease;
    }

    /* Active state */
    .category-btn.active {
        background-color: var(--primary-color);
        color: white;
        border-color: var(--primary-color);
    }

    /* Touch feedback */
    .category-btn:active {
        transform: scale(0.97);
    }

    /* Remove all pseudo-elements */
    .category-btn::before,
    .category-btn::after {
        content: none !important;
        display: none !important;
    }

    /* Disable hover effects on mobile */
    .category-btn:hover {
        background-color: var(--bg-primary);
        border-color: var(--border-color);
    }

    .category-btn.active:hover {
        background-color: var(--primary-color);
        border-color: var(--primary-color);
    }

    .products-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }


    /* Cart */
    .cart-section {
        padding: var(--spacing-xl) 0;
    }

    .cart-items {
        padding: var(--spacing-md);
        padding-bottom: 380px !important; /* Add space for fixed summary */
    }

    .cart-items::before {
        font-size: var(--text-lg);
        margin-bottom: var(--spacing-md);
        padding-bottom: var(--spacing-sm);
    }

    .cart-item {
        grid-template-columns: var(--cart-item-image-mobile-width) 1fr;
        gap: var(--spacing-sm);
    }

    .cart-item__image {
        width: var(--cart-item-image-mobile-width);
    }

    .cart-item__controls {
        grid-column: 1 / -1;
        justify-content: space-between;
        margin-top: var(--spacing-sm);
    }

    .cart-summary {
        padding: 0 !important;
        position: fixed !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
        margin: 0 !important;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important;
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.12) !important;
        max-height: 65vh;
        overflow: hidden;
        z-index: 9999 !important;
        background: var(--bg-primary);
        border-top: 1px solid var(--border-color);
        top: auto !important;
        transform: none !important;
        animation: none !important;
        transition: max-height 0.25s cubic-bezier(0.4, 0, 0.2, 1) !important;
    }

    /* Mobile toggle bar - always visible */
    .cart-summary__mobile-toggle {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 12px 16px;
        background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
        color: white;
        user-select: none;
        -webkit-tap-highlight-color: transparent;
        min-height: 72px;
        gap: 12px;
        cursor: pointer;
    }

    /* Remove pointer cursor from checkout button to show it's distinct from toggle */
    .cart-summary__checkout-btn {
        cursor: pointer !important;
    }

    .cart-summary__checkout-btn {
        margin: 0 !important;
        padding: 10px 14px !important;
        font-size: 14px !important;
        font-weight: var(--font-semibold) !important;
        white-space: nowrap;
        flex: 1 1 auto;
        box-sizing: border-box !important;
        background: white !important;
        color: var(--primary-color) !important;
        border: none !important;
        border-radius: var(--radius-md) !important;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15) !important;
        transition: all 0.2s ease !important;
        min-height: 48px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 10px;
        cursor: pointer;
        overflow: hidden;
        position: relative;
    }

    .cart-summary__checkout-btn:hover {
        transform: translateY(-1px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2) !important;
    }

    .checkout-btn__text {
        font-size: 14px;
        font-weight: var(--font-semibold);
    }

    .checkout-btn__amount {
        font-size: 18px;
        font-weight: var(--font-bold);
        letter-spacing: -0.3px;
        background: rgba(var(--primary-color-rgb, 255, 107, 0), 0.08);
        padding: 4px 10px;
        border-radius: var(--radius-sm);
    }

    .cart-summary__checkout-btn:active {
        transform: scale(0.96);
        box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2) !important;
    }

    /* Hide checkout button in expanded state (redundant with main button) */
    .cart-summary:not(.collapsed) .cart-summary__checkout-btn {
        display: none;
    }

    /* Expanded header - shown when summary is expanded */
    .cart-summary__expanded-header {
        display: none;
        flex: 1;
        align-items: center;
        gap: 8px;
    }

    .cart-summary:not(.collapsed) .cart-summary__expanded-header {
        display: flex;
    }

    .expanded-header__label {
        font-size: 15px;
        font-weight: var(--font-medium);
        color: rgba(255, 255, 255, 0.9);
    }

    .expanded-header__amount {
        font-size: 20px;
        font-weight: var(--font-bold);
        color: white;
        letter-spacing: -0.3px;
    }

    .cart-summary__toggle-btn {
        background: rgba(255, 255, 255, 0.15);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: var(--radius-full);
        color: white;
        padding: 8px;
        cursor: pointer;
        transition: all 0.2s ease;
        display: flex;
        align-items: center;
        justify-content: center;
        min-width: 44px;
        min-height: 44px;
        flex-shrink: 0;
    }

    .cart-summary__toggle-btn:active {
        background: rgba(255, 255, 255, 0.25);
        transform: scale(0.95);
    }

    .cart-summary__toggle-btn .toggle-icon {
        transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

    /* Collapsed state */
    .cart-summary.collapsed {
        max-height: 72px !important;
        height: 72px !important;
    }

    .cart-summary.collapsed .cart-summary__toggle-btn .toggle-icon {
        transform: rotate(180deg);
    }

    .cart-summary.collapsed .cart-summary__title,
    .cart-summary.collapsed .cart-summary__row,
    .cart-summary.collapsed .cart-summary__divider,
    .cart-summary.collapsed p,
    .cart-summary.collapsed .btn:not(.cart-summary__checkout-btn) {
        display: none !important;
    }

    /* Summary content wrapper */
    .cart-summary__title {
        padding: 20px 16px 12px 16px;
        font-size: var(--text-lg);
        font-weight: var(--font-bold);
        color: var(--text-primary);
        border-bottom: 1px solid var(--border-color);
        margin: 0;
    }

    .cart-summary__row {
        padding: 12px 16px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        font-size: var(--text-base);
    }

    .cart-summary__row span:first-child {
        color: var(--text-secondary);
        font-weight: var(--font-medium);
    }

    .cart-summary__row span:last-child {
        color: var(--text-primary);
        font-weight: var(--font-semibold);
    }

    .cart-summary__discount span {
        color: var(--color-success) !important;
    }

    /* Override desktop discount row styles for mobile */
    .cart-summary__row[id="discountRow"] {
        background-color: transparent !important;
        padding: 12px 16px !important;
        border-radius: 0 !important;
        margin: 0 !important;
        animation: none !important;
    }

    .cart-summary__total {
        font-size: var(--text-lg);
        font-weight: var(--font-bold);
        color: var(--text-primary);
        padding: 16px 16px;
    }

    .cart-summary__total span {
        font-weight: var(--font-bold);
    }

    .cart-summary__divider {
        height: 1px;
        background: var(--border-color);
        margin: 8px 16px;
    }

    .cart-summary .btn {
        margin: 0 16px 12px 16px;
        width: calc(100% - 32px);
    }

    .cart-summary .btn:first-of-type {
        margin-top: 12px;
    }

    .cart-summary .btn:last-child {
        margin-bottom: 16px;
    }

    /* Scrollable content when expanded */
    .cart-summary:not(.collapsed) {
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .cart-coupon-wrapper {
        margin-top: var(--spacing-lg);
    }

    .coupon-toggle {
        padding: var(--spacing-md);
    }

    .coupon-toggle a {
        font-size: var(--text-sm);
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .coupon-section {
        padding: var(--spacing-md);
    }

    .coupon-close-btn {
        width: 36px;
        height: 36px;
    }

    .coupon-close-btn svg {
        width: 22px;
        height: 22px;
    }

    .coupon-close-btn:disabled {
        opacity: 0.3;
        cursor: not-allowed;
        pointer-events: none;
    }

    .coupon-input-wrapper {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .coupon-section .btn {
        width: 100%;
    }

    /* Contact */
    .contact-section {
        padding: var(--spacing-xl) 0;
    }

    .contact-form-wrapper,
    .contact-info {
        padding: var(--spacing-md);
    }

    /* Modal */
    .modal__content {
        width: 95%;
        padding: var(--spacing-md);
        padding-top: calc(var(--spacing-md) + 44px);
    }

    .modal__close {
        width: 44px;
        height: 44px;
        top: var(--spacing-sm);
        right: var(--spacing-sm);
        border-radius: var(--radius-full);
        background-color: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(4px);
    }

    .modal__close:hover {
        background-color: rgba(0, 0, 0, 0.7);
    }

    /* Checkout Options */
    .checkout-option {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-lg);
        min-height: 200px;
        justify-content: center;
    }

    .checkout-option__icon {
        width: 56px;
        height: 56px;
        margin: 0 auto var(--spacing-md) auto;
    }

    .checkout-option__content h3 {
        font-size: var(--text-lg);
    }

    /* Toast */
    .toast-container {
        top: auto;
        bottom: var(--spacing-md);
        left: var(--spacing-md);
        right: var(--spacing-md);
        max-width: 500px;
        margin: 0 auto;
    }

    .toast {
        min-width: auto;
        width: 100%;
        animation: slideInUp var(--transition-base);
    }

    @keyframes slideInUp {
        from {
            transform: translateY(100px);
            opacity: 0;
        }
        to {
            transform: translateY(0);
            opacity: 1;
        }
    }

    /* Footer */
    .footer {
        padding: var(--spacing-xl) 0 var(--spacing-lg);
    }

    .footer__content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    /* Buttons */
    .btn {
        width: 100%;
    }

    /* Exception for product card buttons - keep them inline */
    .product-card__btn {
        width: auto;
    }

    /* Forms */
    .form-input,
    .form-textarea {
        font-size: var(--text-base); /* Prevents zoom on iOS - 16px base size */
    }
}

/* Extra Small Mobile (< 375px) */
@media (max-width: 375px) {
    :root {
        --container-padding: var(--spacing-sm);
    }

    .hero__title {
        font-size: var(--text-2xl);
    }

    .page-title {
        font-size: var(--text-2xl);
    }

    .section-title {
        font-size: var(--text-xl);
    }

    .cart-item__image {
        width: var(--cart-item-image-xs-width);
    }

    .cart-item__controls {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: stretch;
    }

    .cart-item__controls .quantity-control {
        justify-content: center;
    }

    /* Cart Summary - Extra small screens */
    .cart-summary__checkout-btn {
        padding: 9px 12px !important;
        gap: 8px;
    }

    .checkout-btn__text {
        font-size: 13px;
    }

    .checkout-btn__amount {
        font-size: 16px;
        padding: 3px 8px;
    }

    .expanded-header__label {
        font-size: 14px;
    }

    .expanded-header__amount {
        font-size: 18px;
    }

    .cart-summary__toggle-btn {
        min-width: 40px;
        min-height: 40px;
        padding: 6px;
    }

    /* Toast - Extra small screens */
    .toast {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .toast__message {
        font-size: var(--text-sm);
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .btn,
    .hamburger,
    .modal,
    .toast-container {
        display: none !important;
    }

    body {
        background-color: white;
        color: black;
    }

    .cart-summary {
        border: 1px solid black;
        page-break-inside: avoid;
    }

    .cart-item {
        page-break-inside: avoid;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --border-color: var(--gray-900);
        --shadow-base: 0 0 0 2px var(--gray-900);
    }

    .btn {
        border-width: 3px;
    }
}

/* Dark Mode Support (Optional - Uncomment to enable) */
/*
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: var(--gray-900);
        --bg-secondary: var(--gray-800);
        --bg-tertiary: var(--gray-700);
        --text-primary: var(--gray-100);
        --text-secondary: var(--gray-300);
        --text-tertiary: var(--gray-400);
        --border-color: var(--gray-700);
    }

    .hero {
        background: linear-gradient(135deg, var(--primary-dark) 0%, var(--gray-900) 100%);
    }

    .product-card,
    .cart-items,
    .cart-summary,
    .contact-form-wrapper,
    .contact-info {
        background-color: var(--gray-800);
        border: 1px solid var(--gray-700);
    }

    .footer {
        background-color: var(--gray-950);
    }
}
*/