/* ====================================
   IL FORNAZZO - ESTILOS RESPONSIVOS
   ==================================== */

:root {
    /* Colores principales */
    --primary-color: #1B7A3C;
    --primary-dark: #156a32;
    --primary-light: #ECFDF5;
    --secondary-color: #B8860B;
    --secondary-light: #FFF8DC;
    
    /* Escala de grises */
    --gray-900: #111827;
    --gray-700: #374151;
    --gray-600: #4B5563;
    --gray-500: #6B7280;
    --gray-400: #9CA3AF;
    --gray-300: #D1D5DB;
    --gray-200: #E5E7EB;
    --gray-100: #F3F4F6;
    --gray-50: #F9FAFB;
    --white: #FFFFFF;
    
    /* Estados */
    --success: #10B981;
    --error: #EF4444;
    --warning: #F59E0B;
    --info: #3B82F6;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Typography */
    --font-display: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transiciones */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Modo oscuro (opcional futuro) */
@media (prefers-color-scheme: dark) {
    :root {
        --gray-900: #F9FAFB;
        --gray-700: #E5E7EB;
        --gray-600: #D1D5DB;
        --gray-500: #9CA3AF;
        --gray-400: #6B7280;
        --gray-300: #4B5563;
        --gray-200: #374151;
        --gray-100: #1F2937;
        --gray-50: #111827;
        --white: #1F2937;
    }
}

/* ====== Reset & Base Styles ====== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.5;
    color: var(--gray-900);
    background-color: var(--white);
    -webkit-tap-highlight-color: transparent;
}

button, input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

input, textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    background: var(--white);
    color: var(--gray-900);
    transition: border-color var(--transition-fast);
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(27, 122, 60, 0.1);
}

input::placeholder, textarea::placeholder {
    color: var(--gray-500);
}

/* Skip link para accesibilidad */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-md);
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* ====== App Layout ====== */

.app {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background: var(--white);
}

.main-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
}

/* ====== Header ====== */

.header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    max-width: 100%;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
    min-width: 0;
}

.btn-back {
    display: none;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
    padding: 0;
    align-items: center;
    justify-content: center;
}

.btn-back:hover {
    background: rgba(255, 255, 255, 0.3);
}

.header-title {
    flex: 1;
    min-width: 0;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.subtitle {
    font-size: 0.75rem;
    opacity: 0.9;
    margin-top: 2px;
}

.btn-cart {
    position: relative;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: var(--white);
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.btn-cart:hover {
    background: rgba(255, 255, 255, 0.3);
}

.cart-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--error);
    color: var(--white);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    animation: pulse 0.5s ease-in-out;
}

@keyframes pulse {
    0% { transform: scale(0.8); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

/* ====== Screens ====== */

.screen {
    display: none;
    animation: fadeIn var(--transition-fast);
    min-height: 100%;
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ====== Welcome Screen ====== */

.welcome-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100%;
    padding: var(--spacing-xl);
    text-align: center;
    gap: var(--spacing-xl);
}

.welcome-header {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.welcome-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
}

.welcome-header h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.welcome-header p {
    color: var(--gray-600);
}

.info-box {
    width: 100%;
    background: var(--primary-light);
    border: 1px solid var(--primary-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--gray-900);
    font-size: 0.95rem;
}

.info-item svg {
    color: var(--primary-color);
    flex-shrink: 0;
}

.tip-box {
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    font-size: 0.85rem;
    color: var(--gray-700);
}

/* ====== Botones ====== */

.btn-primary,
.btn-secondary,
.btn-tertiary {
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.95rem;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    background: var(--gray-400);
    cursor: not-allowed;
    transform: none;
}

.btn-primary.btn-large {
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: 1rem;
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-900);
    border: 1px solid var(--gray-300);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.95rem;
}

.btn-secondary:hover {
    background: var(--gray-300);
}

.btn-secondary.btn-large {
    width: 100%;
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: 1rem;
}

.btn-tertiary {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.85rem;
}

/* ====== Menu & Productos ====== */

.menu-container {
    padding: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.filters-bar {
    display: flex;
    gap: var(--spacing-sm);
    overflow-x: auto;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
}

.filters-bar::-webkit-scrollbar {
    height: 4px;
}

.filters-bar::-webkit-scrollbar-track {
    background: var(--gray-200);
    border-radius: var(--radius-lg);
}

.filters-bar::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: var(--radius-lg);
}

.filter-btn {
    background: var(--white);
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.filter-btn.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.filter-btn:hover:not(.active) {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.products-grid {
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: 1fr;
    animation: fadeIn var(--transition-fast);
}

/* Product Card */
.product-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.product-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: var(--gray-200);
    overflow: hidden;
    position: relative;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-image.no-image {
    background: linear-gradient(135deg, var(--gray-200) 0%, var(--gray-300) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.product-content {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.product-content h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-900);
}

.product-category {
    font-size: 0.75rem;
    color: var(--gray-500);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.product-description {
    font-size: 0.85rem;
    color: var(--gray-600);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--gray-200);
}

.product-price {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.btn-product-action {
    background: var(--primary-light);
    color: var(--primary-color);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-product-action:hover {
    background: var(--primary-color);
    color: var(--white);
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    color: var(--gray-600);
    text-align: center;
}

/* ====== Product Detail ====== */

.product-detail-container {
    padding: var(--spacing-xl);
    max-width: 900px;
    margin: 0 auto;
}

.product-detail-image {
    width: 100%;
    aspect-ratio: 1;
    background: var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
}

.product-detail-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-detail-content h2 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    margin-bottom: var(--spacing-sm);
}

.product-description {
    font-size: 1rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.nutritional-info {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.nutritional-info h4 {
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
}

.nutritional-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--spacing-md);
}

.nutritional-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.nutritional-item .label {
    font-size: 0.75rem;
    color: var(--gray-600);
    text-transform: uppercase;
    font-weight: 600;
}

.nutritional-item .value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-top: var(--spacing-xs);
}

.allergens-info {
    background: var(--secondary-light);
    border: 1px solid var(--secondary-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.allergens-info .warning {
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.allergens-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.allergen-badge {
    background: var(--white);
    border: 1px solid var(--secondary-color);
    color: var(--secondary-color);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: 0.85rem;
    font-weight: 500;
}

.quantity-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.btn-quantity {
    background: var(--gray-200);
    border: none;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-quantity:hover {
    background: var(--primary-color);
    color: var(--white);
}

#quantity-input {
    text-align: center;
    font-weight: 600;
    flex: 1;
    font-size: 1.1rem;
}

.price-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.price {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
}

.price-subtotal {
    color: var(--gray-600);
    font-size: 0.95rem;
}

/* ====== Cart ====== */

.cart-container {
    padding: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

.cart-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.cart-item {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.cart-item-image {
    width: 100px;
    height: 100px;
    background: var(--gray-200);
    border-radius: var(--radius-md);
    overflow: hidden;
    flex-shrink: 0;
}

.cart-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cart-item-content {
    flex: 1;
}

.cart-item-name {
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.cart-item-notes {
    font-size: 0.85rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-sm);
}

.cart-item-price {
    color: var(--primary-color);
    font-weight: 700;
}

.cart-item-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-remove {
    background: var(--error);
    color: var(--white);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.btn-remove:hover {
    background: #D32F2F;
}

.cart-totals {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    font-size: 0.95rem;
}

.total-row.total-amount {
    font-size: 1.2rem;
    font-weight: 700;
    border-top: 2px solid var(--gray-200);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.highlight {
    color: var(--success);
    font-weight: 600;
}

/* ====== Checkout Form ====== */

.checkout-container {
    padding: var(--spacing-xl);
    max-width: 600px;
    margin: 0 auto;
}

.checkout-container h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xl);
}

.form-checkout {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group label {
    font-weight: 600;
    color: var(--gray-900);
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    padding: var(--spacing-md);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 1rem;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
    font-family: inherit;
}

.char-count {
    font-size: 0.85rem;
    color: var(--gray-500);
    text-align: right;
}

.input-group {
    display: flex;
    gap: var(--spacing-sm);
}

.input-prefix {
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-md);
    background: var(--gray-100);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-weight: 600;
    white-space: nowrap;
    border-right: none;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.input-group input {
    flex: 1;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.discount-group {
    gap: 0;
}

.discount-group input {
    border-right: none;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.discount-group button {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.discount-info {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
}

.discount-info.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.discount-info.error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

.error-message {
    font-size: 0.85rem;
    color: var(--error);
    display: none;
}

.error-message.show {
    display: block;
}

.form-group input:invalid:not(:placeholder-shown),
.form-group input.error {
    border-color: var(--error);
}

.checkbox-group {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.checkbox-group input {
    width: auto;
    margin-top: 4px;
    cursor: pointer;
    min-width: 20px;
    min-height: 20px;
}

.checkbox-group label {
    font-weight: 400;
    flex: 1;
}

.checkbox-group a {
    color: var(--primary-color);
    text-decoration: none;
}

.checkbox-group a:hover {
    text-decoration: underline;
}

.checkout-summary {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    font-size: 0.95rem;
}

.summary-row.total {
    font-weight: 700;
    font-size: 1.2rem;
    border-top: 2px solid var(--gray-200);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.discount-row {
    color: var(--success);
}

/* ====== Success Screen ====== */

.success-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-xl);
    text-align: center;
    gap: var(--spacing-xl);
}

.success-header {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.success-icon {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: rgba(16, 185, 129, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
}

.success-header h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.order-details {
    width: 100%;
    max-width: 500px;
    background: var(--white);
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    gap: var(--spacing-lg);
}

.order-number {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--primary-light);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.order-number .label {
    font-size: 0.85rem;
    color: var(--gray-600);
    text-transform: uppercase;
}

.order-number .number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-top: var(--spacing-sm);
}

.order-summary {
    text-align: left;
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
}

.order-summary h3 {
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
}

.success-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.success-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.95rem;
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--gray-200);
}

.success-item:last-child {
    border-bottom: none;
}

.success-item-qty {
    color: var(--gray-600);
    margin-right: var(--spacing-sm);
}

.order-times {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: left;
    padding: var(--spacing-lg);
    background: var(--info-light, rgba(59, 130, 246, 0.1));
    border-radius: var(--radius-lg);
}

.time-item {
    display: flex;
    justify-content: space-between;
    font-size: 0.95rem;
}

.time-item .label {
    color: var(--gray-600);
}

.time-item .value {
    font-weight: 600;
    color: var(--gray-900);
}

.order-total {
    text-align: center;
    padding: var(--spacing-lg);
    border-top: 2px solid var(--gray-200);
}

.order-total .label {
    font-size: 0.85rem;
    color: var(--gray-600);
}

.order-total .amount {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-top: var(--spacing-sm);
}

.notification-info {
    background: var(--secondary-light);
    border: 1px solid var(--secondary-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    color: var(--secondary-color);
    font-size: 0.95rem;
    line-height: 1.6;
}

.notification-info p {
    margin: 0;
    padding: var(--spacing-xs) 0;
}

.success-actions {
    width: 100%;
    max-width: 500px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.success-footer {
    width: 100%;
    text-align: center;
    color: var(--gray-600);
    font-size: 0.95rem;
}

.success-footer p {
    margin: var(--spacing-sm) 0;
}

/* ====== Error Screen ====== */

.error-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100%;
    padding: var(--spacing-xl);
    text-align: center;
    gap: var(--spacing-lg);
}

.error-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
}

.error-container h2 {
    font-family: var(--font-display);
    font-size: 1.8rem;
}

/* ====== Loading Screen ====== */

.loading-screen {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    z-index: 1000;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
}

.loading-screen.active {
    display: flex;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ====== Toast Notifications ====== */

.toast-container {
    position: fixed;
    bottom: var(--spacing-lg);
    left: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 999;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 500px;
}

.toast {
    background: var(--gray-900);
    color: var(--white);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: slideUp var(--transition-fast) ease-out;
    pointer-events: auto;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.toast.success {
    background: var(--success);
}

.toast.error {
    background: var(--error);
}

.toast.warning {
    background: var(--warning);
}

.toast.info {
    background: var(--info);
}

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

/* ====== Responsive Design ====== */

/* Tablet (768px+) */
@media (min-width: 768px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .header-container {
        padding: var(--spacing-lg) var(--spacing-2xl);
    }

    .menu-container {
        padding: var(--spacing-2xl);
    }

    .filters-bar {
        margin-bottom: var(--spacing-2xl);
    }

    .checkout-container {
        padding: var(--spacing-2xl);
    }

    .success-container {
        padding: var(--spacing-2xl);
    }
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .app {
        height: 100vh;
    }

    .header {
        position: sticky;
    }

    .main-content {
        height: calc(100vh - 80px);
    }

    .header-container {
        max-width: 1400px;
        margin: 0 auto;
    }

    .menu-container {
        max-width: 1400px;
        margin: 0 auto;
    }

    .product-detail-container {
        max-width: 1200px;
        margin: 0 auto;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-2xl);
        align-items: start;
    }

    .product-detail-image {
        margin-bottom: 0;
        aspect-ratio: 1;
    }

    .product-detail-content {
        min-height: 100%;
        display: flex;
        flex-direction: column;
    }

    .cart-container {
        display: grid;
        grid-template-columns: 2fr 1fr;
        gap: var(--spacing-2xl);
    }

    .cart-items {
        grid-column: 1;
    }

    #cart-summary {
        grid-column: 2;
        height: fit-content;
        position: sticky;
        top: 100px;
    }
}

/* Ultra Wide (1440px+) */
@media (min-width: 1440px) {
    .products-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* iPhone Notch Safe Area */
@supports (padding: max(0px)) {
    body {
        padding-left: max(0px, env(safe-area-inset-left));
        padding-right: max(0px, env(safe-area-inset-right));
        padding-top: max(0px, env(safe-area-inset-top));
        padding-bottom: max(0px, env(safe-area-inset-bottom));
    }
}

/* Modo reducido */
@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;
    }
}

/* Modo oscuro (iOS) */
@media (prefers-color-scheme: dark) {
    body {
        background-color: var(--gray-900);
        color: var(--gray-50);
    }

    input, textarea, select {
        background-color: var(--gray-800);
        color: var(--gray-50);
        border-color: var(--gray-700);
    }

    .product-card,
    .cart-item,
    .order-details {
        background-color: var(--gray-800);
        border-color: var(--gray-700);
    }

    .filters-bar {
        background-color: var(--gray-900);
    }

    .filter-btn {
        background-color: var(--gray-800);
        color: var(--gray-100);
        border-color: var(--gray-700);
    }
}

/* Impresión */
@media print {
    .header,
    .btn-back,
    .btn-cart,
    .filters-bar,
    .toast-container {
        display: none;
    }

    body {
        background: var(--white);
    }

    .order-details {
        border: 2px solid var(--gray-900);
    }
}