/* =====================================================
   CATERING TERRASSA - ESTILOS PRINCIPALES
   Paleta: Naranja/Terracota cálido
   ===================================================== */

:root {
    /* Colores principales */
    --primary: #e67e22;
    --primary-dark: #d35400;
    --primary-light: #f39c12;

    /* Secundarios */
    --secondary: #2c3e50;
    --secondary-light: #34495e;

    /* Neutros */
    --white: #ffffff;
    --light: #f8f9fa;
    --gray-100: #f5f5f5;
    --gray-200: #eeeeee;
    --gray-300: #e0e0e0;
    --gray-400: #bdbdbd;
    --gray-500: #9e9e9e;
    --gray-600: #757575;
    --gray-700: #616161;
    --gray-800: #424242;
    --dark: #1a1a1a;

    /* Estados */
    --success: #27ae60;
    --warning: #f1c40f;
    --danger: #e74c3c;
    --info: #3498db;

    /* Tipografía */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;

    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Sombras */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 50px rgba(0,0,0,0.15);

    /* Bordes */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* Transiciones */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

/* Reset y Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark);
    background-color: var(--white);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

/* Utilidades */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* =====================================================
   HEADER Y NAVEGACIÓN
   ===================================================== */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: transform var(--transition-base);
}

.header.hidden {
    transform: translateY(-100%);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    gap: var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary);
}

.logo img {
    height: 45px;
    width: auto;
}

.logo span {
    color: var(--primary);
}

/* Navegación principal */
.nav-main {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-main a {
    font-weight: 500;
    color: var(--secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-main a:hover,
.nav-main a.active {
    color: var(--primary);
    background: rgba(230, 126, 34, 0.1);
}

/* Botón del carrito */
.cart-btn {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-full);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.cart-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

.cart-btn .badge {
    position: absolute;
    top: -5px;
    right: -5px;
    min-width: 20px;
    height: 20px;
    background: var(--danger);
    color: var(--white);
    font-size: 12px;
    font-weight: 700;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.cart-btn .badge:empty {
    display: none;
}

/* Menú móvil */
.menu-toggle {
    display: none;
    padding: var(--spacing-sm);
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--secondary);
    margin: 5px 0;
    transition: all var(--transition-fast);
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-main {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--white);
        flex-direction: column;
        align-items: stretch;
        padding: var(--spacing-lg);
        gap: var(--spacing-sm);
        transform: translateX(-100%);
        transition: transform var(--transition-base);
    }

    .nav-main.open {
        transform: translateX(0);
    }

    .nav-main a {
        padding: var(--spacing-md);
        font-size: 1.1rem;
        border-bottom: 1px solid var(--gray-200);
    }
}

/* =====================================================
   HERO SECTION
   ===================================================== */

.hero {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
    margin-top: 70px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="40" fill="none" stroke="rgba(230,126,34,0.1)" stroke-width="0.5"/></svg>') repeat;
    background-size: 100px;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--spacing-2xl);
    max-width: 800px;
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.hero h1 span {
    color: var(--primary);
}

.hero p {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* =====================================================
   BOTONES
   ===================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

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

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

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

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

.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

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

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 1.125rem;
}

/* =====================================================
   SECCIONES
   ===================================================== */

.section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--secondary);
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    color: var(--gray-600);
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--spacing-2xl);
}

/* =====================================================
   CATEGORÍAS
   ===================================================== */

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.category-card {
    position: relative;
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.category-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

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

.category-card h3 {
    font-size: 1.25rem;
    color: var(--secondary);
    margin-bottom: var(--spacing-sm);
}

.category-card p {
    color: var(--gray-600);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
}

.category-card .price-range {
    color: var(--primary);
    font-weight: 600;
}

/* =====================================================
   PRODUCTOS / GRID
   ===================================================== */

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: all var(--transition-base);
}

.product-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.product-card-image {
    position: relative;
    height: 180px;
    overflow: hidden;
}

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

.product-card:hover .product-card-image img {
    transform: scale(1.08);
}

.product-badge {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--primary);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
}

.product-card-content {
    padding: var(--spacing-md);
}

.product-card h3 {
    font-size: 1.1rem;
    color: var(--secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.product-card .description {
    color: var(--gray-600);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

.product-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

.product-price small {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--gray-500);
}

.price-consult {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-600);
    font-style: italic;
}

.product-card .btn-add {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-full);
    font-size: 1.25rem;
}

/* =====================================================
   CARRITO SIDEBAR
   ===================================================== */

.cart-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    z-index: 1100;
    transition: all var(--transition-base);
}

.cart-overlay.open {
    opacity: 1;
    visibility: visible;
}

.cart-sidebar {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    max-width: 420px;
    background: var(--white);
    z-index: 1101;
    transform: translateX(100%);
    transition: transform var(--transition-base);
    display: flex;
    flex-direction: column;
}

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

.cart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
}

.cart-header h2 {
    font-size: 1.25rem;
    color: var(--secondary);
}

.cart-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 1.25rem;
    color: var(--gray-600);
    transition: all var(--transition-fast);
}

.cart-close:hover {
    background: var(--gray-200);
    color: var(--secondary);
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
}

.cart-empty {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--gray-500);
}

.cart-empty svg {
    width: 80px;
    height: 80px;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.cart-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--gray-100);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.cart-item img {
    width: 70px;
    height: 70px;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

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

.cart-item-info h4 {
    font-size: 0.95rem;
    color: var(--secondary);
    margin-bottom: var(--spacing-xs);
}

.cart-item-info .detail {
    font-size: 0.8rem;
    color: var(--gray-600);
}

.cart-item-info .price {
    font-weight: 600;
    color: var(--primary);
    margin-top: var(--spacing-xs);
}

.cart-item-remove {
    background: none;
    border: none;
    color: var(--gray-500);
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: color var(--transition-fast);
}

.cart-item-remove:hover {
    color: var(--danger);
}

.cart-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    background: var(--gray-100);
}

.cart-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
    font-weight: 700;
}

.cart-total .amount {
    color: var(--primary);
}

.cart-footer .btn {
    width: 100%;
}

/* =====================================================
   FORMULARIO DE PEDIDO
   ===================================================== */

.order-form {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--secondary);
    margin-bottom: var(--spacing-sm);
}

.form-group label .required {
    color: var(--danger);
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    font-size: 1rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(230, 126, 34, 0.2);
}

.form-control::placeholder {
    color: var(--gray-400);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

/* =====================================================
   SELECTOR DE PERSONAS
   ===================================================== */

.person-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.person-selector button {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-full);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.person-selector button:hover:not(:disabled) {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
}

.person-selector button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.person-selector .count {
    min-width: 50px;
    text-align: center;
    font-size: 1.25rem;
    font-weight: 600;
}

.person-selector .label {
    color: var(--gray-600);
    font-size: 0.9rem;
}

/* =====================================================
   MODAL DE PRODUCTO
   ===================================================== */

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    z-index: 1200;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.modal-overlay.open {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--white);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-base);
}

.modal-overlay.open .modal {
    transform: scale(1) translateY(0);
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 1.25rem;
    color: var(--gray-600);
    box-shadow: var(--shadow-md);
    z-index: 10;
}

.modal-image {
    position: relative;
    height: 250px;
}

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

.modal-content {
    padding: var(--spacing-xl);
}

.modal-content h3 {
    font-size: 1.5rem;
    color: var(--secondary);
    margin-bottom: var(--spacing-sm);
}

.modal-content .price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.modal-content .price small {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--gray-500);
}

.modal-content .description {
    color: var(--gray-600);
    margin-bottom: var(--spacing-lg);
}

.modal-content .items-list {
    margin-bottom: var(--spacing-lg);
}

.modal-content .items-list h4 {
    font-size: 0.9rem;
    color: var(--secondary);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.modal-content .items-list ul {
    list-style: none;
}

.modal-content .items-list li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-lg);
    position: relative;
    color: var(--gray-600);
    font-size: 0.9rem;
}

.modal-content .items-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: bold;
}

/* Selector de variantes de precio */
.variantes-selector {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.variante-option {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.variante-option:hover {
    border-color: var(--primary);
    background-color: rgba(230, 126, 34, 0.05);
}

.variante-option.selected {
    border-color: var(--primary);
    background-color: rgba(230, 126, 34, 0.1);
}

.variante-option input[type="radio"] {
    margin-right: var(--spacing-md);
    accent-color: var(--primary);
}

.variante-label {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-sm);
}

.variante-label strong {
    font-size: 1.1rem;
    color: var(--primary-dark);
}

.variante-label small {
    color: var(--gray-600);
}

/* Precio con variantes en tarjetas */
.product-price .variant-price {
    display: block;
    font-size: 0.95rem;
    line-height: 1.4;
}

.product-price .variant-price:first-child {
    font-weight: 600;
    color: var(--primary-dark);
}

.product-price .variant-price:not(:first-child) {
    font-size: 0.85rem;
    color: var(--gray-600);
}

/* =====================================================
   FOOTER
   ===================================================== */

.footer {
    background: var(--secondary);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-col h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-light);
}

.footer-col p,
.footer-col li {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-sm);
}

.footer-col ul {
    list-style: none;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.8);
}

.footer-col a:hover {
    color: var(--primary-light);
}

.footer-contact {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.footer-contact svg {
    width: 20px;
    height: 20px;
    color: var(--primary);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

/* =====================================================
   PÁGINA DE CONTACTO
   ===================================================== */

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

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

.contact-info-card {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--gray-100);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.contact-info-card svg {
    width: 40px;
    height: 40px;
    color: var(--primary);
    flex-shrink: 0;
}

.contact-info-card h4 {
    color: var(--secondary);
    margin-bottom: var(--spacing-xs);
}

.contact-info-card p {
    color: var(--gray-600);
}

/* =====================================================
   RESPONSIVE
   ===================================================== */

@media (max-width: 1024px) {
    .hero {
        min-height: 70vh;
    }
}

@media (max-width: 768px) {
    .section {
        padding: var(--spacing-2xl) 0;
    }

    .hero {
        min-height: 60vh;
    }

    .hero-content {
        padding: var(--spacing-lg);
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .products-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }

    .cart-sidebar {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

/* =====================================================
   ANIMACIONES
   ===================================================== */

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

.slide-up {
    animation: slideUp 0.5s ease forwards;
}

/* Loading */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-300);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Toast notifications */
.toast-container {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 1300;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--secondary);
    color: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

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

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