/**
 * NANODENT Tienda - Estilos
 * Ecommerce estilo Shopify/Tienda Nestlé
 */

/* ============================================
   VARIABLES Y RESET
   ============================================ */
:root {
    /* Colores de marca */
    --brand-primary: #1e3a5f;
    --brand-secondary: #00b4d8;
    --brand-accent: #0077b6;
    --brand-light: #e0f7fa;

    /* Estados */
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #dc2626;

    /* Neutros */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

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

    /* Bordes */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

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

    /* Layout */
    --container-max: 1280px;
    --header-height: 70px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--gray-800);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ============================================
   UTILIDADES
   ============================================ */
.container {
    max-width: var(--container-max);
    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
   ============================================ */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    height: var(--header-height);
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: var(--spacing-lg);
}

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

.header__logo img {
    height: 40px;
    width: auto;
}

.header__logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--brand-primary);
}

.header__nav {
    display: none;
}

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

.header__cart-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: var(--gray-100);
    transition: background var(--transition-fast);
}

.header__cart-btn:hover {
    background: var(--gray-200);
}

.header__cart-btn svg {
    width: 24px;
    height: 24px;
    color: var(--gray-700);
}

.header__cart-count {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--white);
    background: var(--brand-secondary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.header__cart-count:empty,
.header__cart-count[data-count="0"] {
    display: none;
}

@media (min-width: 768px) {
    .header__nav {
        display: flex;
        gap: var(--spacing-xl);
    }

    .header__nav a {
        font-size: 0.9375rem;
        font-weight: 500;
        color: var(--gray-600);
        transition: color var(--transition-fast);
    }

    .header__nav a:hover {
        color: var(--brand-secondary);
    }
}

/* ============================================
   BREADCRUMB
   ============================================ */
.breadcrumb {
    padding: var(--spacing-md) 0;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

.breadcrumb__list {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    list-style: none;
    font-size: 0.875rem;
    color: var(--gray-500);
}

.breadcrumb__item a {
    color: var(--gray-600);
    transition: color var(--transition-fast);
}

.breadcrumb__item a:hover {
    color: var(--brand-secondary);
}

.breadcrumb__separator {
    color: var(--gray-400);
}

.breadcrumb__item--current {
    color: var(--gray-800);
    font-weight: 500;
}

/* ============================================
   PÁGINA DE PRODUCTO
   ============================================ */
.product-page {
    padding: var(--spacing-xl) 0 var(--spacing-3xl);
}

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

@media (min-width: 968px) {
    .product-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-3xl);
    }
}

/* ============================================
   GALERÍA DE IMÁGENES
   ============================================ */
.gallery {
    position: relative;
}

@media (min-width: 968px) {
    .gallery {
        position: sticky;
        top: calc(var(--header-height) + var(--spacing-lg));
    }
}

.gallery__main {
    position: relative;
    aspect-ratio: 1;
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: zoom-in;
    margin-bottom: var(--spacing-md);
}

.gallery__main img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform var(--transition-slow);
}

.gallery__main:hover img {
    transform: scale(1.05);
}

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

.gallery__thumbnails {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
}

.gallery__thumb {
    aspect-ratio: 1;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: border-color var(--transition-fast);
    background: var(--gray-50);
}

.gallery__thumb:hover,
.gallery__thumb.active {
    border-color: var(--brand-secondary);
}

.gallery__thumb img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.9);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox__content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
}

.lightbox__content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
}

.lightbox__close {
    position: absolute;
    top: -40px;
    right: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
    transition: transform var(--transition-fast);
}

.lightbox__close:hover {
    transform: scale(1.1);
}

.lightbox__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: 1.5rem;
    transition: background var(--transition-fast);
}

.lightbox__nav:hover {
    background: rgba(255, 255, 255, 0.2);
}

.lightbox__prev { left: var(--spacing-lg); }
.lightbox__next { right: var(--spacing-lg); }

/* ============================================
   INFO DEL PRODUCTO
   ============================================ */
.product-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.product-info__brand {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--brand-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.product-info__title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--brand-primary);
    line-height: 1.3;
}

@media (min-width: 768px) {
    .product-info__title {
        font-size: 2rem;
    }
}

/* Rating */
.rating {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.rating__stars {
    display: flex;
    gap: 2px;
    color: var(--warning);
}

.rating__stars svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.rating__count {
    font-size: 0.875rem;
    color: var(--gray-500);
}

.rating__count a {
    color: var(--brand-secondary);
    text-decoration: underline;
}

/* Precio */
.price {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.price__current {
    font-size: 2rem;
    font-weight: 700;
    color: var(--brand-primary);
}

.price__original {
    font-size: 1.25rem;
    color: var(--gray-400);
    text-decoration: line-through;
}

.price__discount {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--white);
    background: var(--danger);
    border-radius: var(--radius-sm);
}

.price__unit {
    font-size: 0.875rem;
    color: var(--gray-500);
    width: 100%;
}

/* Descripción corta */
.product-info__description {
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ============================================
   SELECTOR DE PACKS/VARIANTES
   ============================================ */
.variants {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.variants__label {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--gray-800);
}

.variant-card {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.variant-card:hover {
    border-color: var(--brand-secondary);
    background: var(--brand-light);
}

.variant-card.selected {
    border-color: var(--brand-secondary);
    background: var(--brand-light);
}

.variant-card__radio {
    position: absolute;
    opacity: 0;
}

.variant-card__check {
    width: 22px;
    height: 22px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.variant-card.selected .variant-card__check {
    border-color: var(--brand-secondary);
    background: var(--brand-secondary);
}

.variant-card__check svg {
    width: 14px;
    height: 14px;
    color: var(--white);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.variant-card.selected .variant-card__check svg {
    opacity: 1;
}

.variant-card__image {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--gray-100);
    flex-shrink: 0;
}

.variant-card__image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.variant-card__content {
    flex: 1;
    min-width: 0;
}

.variant-card__name {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 2px;
}

.variant-card__desc {
    font-size: 0.8125rem;
    color: var(--gray-500);
}

.variant-card__pricing {
    text-align: right;
    flex-shrink: 0;
}

.variant-card__price {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--brand-primary);
}

.variant-card__unit-price {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.variant-card__badge {
    position: absolute;
    top: -10px;
    right: var(--spacing-md);
    padding: 4px 10px;
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--white);
    background: var(--brand-secondary);
    border-radius: var(--radius-full);
}

.variant-card__badge--popular {
    background: var(--warning);
}

.variant-card__badge--best {
    background: var(--success);
}

.variant-card__shipping {
    font-size: 0.75rem;
    color: var(--success);
    margin-top: 2px;
}

/* ============================================
   CANTIDAD
   ============================================ */
.quantity {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.quantity__label {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--gray-800);
}

.quantity__controls {
    display: flex;
    align-items: center;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.quantity__btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--gray-600);
    background: var(--gray-50);
    transition: background var(--transition-fast), color var(--transition-fast);
}

.quantity__btn:hover:not(:disabled) {
    background: var(--gray-100);
    color: var(--brand-secondary);
}

.quantity__btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.quantity__input {
    width: 60px;
    height: 44px;
    text-align: center;
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
    border: none;
    border-left: 1px solid var(--gray-300);
    border-right: 1px solid var(--gray-300);
    outline: none;
}

.quantity__input::-webkit-inner-spin-button,
.quantity__input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

/* ============================================
   BOTONES CTA
   ============================================ */
.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.btn {
    display: 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-lg);
    transition: all var(--transition-fast);
}

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

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

.btn--secondary {
    color: var(--brand-primary);
    background: var(--white);
    border: 2px solid var(--brand-primary);
}

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

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

.btn svg {
    width: 20px;
    height: 20px;
}

/* ============================================
   TRUST BADGES
   ============================================ */
.trust-badges {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
}

.trust-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-xs);
}

.trust-badge__icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border-radius: var(--radius-full);
    color: var(--brand-secondary);
    box-shadow: var(--shadow-sm);
}

.trust-badge__icon svg {
    width: 20px;
    height: 20px;
}

.trust-badge__text {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--gray-600);
    line-height: 1.3;
}

/* ============================================
   TABS
   ============================================ */
.product-tabs {
    margin-top: var(--spacing-3xl);
    border-top: 1px solid var(--gray-200);
    padding-top: var(--spacing-xl);
}

.tabs__nav-wrapper {
    position: relative;
    margin-bottom: var(--spacing-xl);
}

.tabs__nav {
    display: flex;
    gap: var(--spacing-xs);
    overflow-x: auto;
    border-bottom: 2px solid var(--gray-200);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    scroll-behavior: smooth;
}

.tabs__nav::-webkit-scrollbar {
    display: none;
}

.tabs__btn {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--gray-500);
    white-space: nowrap;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.tabs__btn:hover {
    color: var(--gray-700);
}

.tabs__btn.active {
    color: var(--brand-secondary);
    border-bottom-color: var(--brand-secondary);
}

/* Flechas de scroll para tabs */
.tabs__arrow {
    position: absolute;
    top: 0;
    bottom: 2px;
    width: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(to right, var(--white) 60%, transparent);
    color: var(--gray-600);
    cursor: pointer;
    z-index: 2;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.tabs__arrow--left {
    left: 0;
    background: linear-gradient(to right, var(--white) 60%, transparent);
}

.tabs__arrow--right {
    right: 0;
    background: linear-gradient(to left, var(--white) 60%, transparent);
}

.tabs__arrow.visible {
    opacity: 1;
    visibility: visible;
}

.tabs__arrow svg {
    width: 20px;
    height: 20px;
    animation: bounce-horizontal 1s infinite;
}

.tabs__arrow--left svg {
    animation-name: bounce-left;
}

.tabs__arrow--right svg {
    animation-name: bounce-right;
}

@keyframes bounce-right {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(4px); }
}

@keyframes bounce-left {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(-4px); }
}

@media (min-width: 768px) {
    .tabs__arrow {
        display: none;
    }
}

.tabs__panel {
    display: none;
}

.tabs__panel.active {
    display: block;
}

.tabs__content {
    font-size: 1rem;
    color: var(--gray-700);
    line-height: 1.8;
}

.tabs__content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--brand-primary);
    margin-bottom: var(--spacing-md);
}

.tabs__content p {
    margin-bottom: var(--spacing-md);
}

.tabs__content ul {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.tabs__content li {
    margin-bottom: var(--spacing-sm);
}

/* Steps (Cómo usar) */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
}

.step {
    text-align: center;
}

.step__image {
    width: 100%;
    max-width: 180px;
    margin: 0 auto var(--spacing-md);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.step__number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--white);
    background: var(--brand-secondary);
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
}

.step__title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--spacing-xs);
}

.step__desc {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ============================================
   MINI CARRITO (DRAWER)
   ============================================ */
.cart-overlay {
    position: fixed;
    inset: 0;
    z-index: 900;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

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

.cart-drawer {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 950;
    width: 100%;
    max-width: 420px;
    height: 100%;
    background: var(--white);
    box-shadow: var(--shadow-xl);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.cart-drawer.active {
    transform: translateX(0);
}

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

.cart-drawer__title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-800);
}

.cart-drawer__close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-500);
    border-radius: var(--radius-full);
    transition: background var(--transition-fast);
}

.cart-drawer__close:hover {
    background: var(--gray-100);
}

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

.cart-drawer__empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    color: var(--gray-500);
}

.cart-drawer__empty svg {
    width: 64px;
    height: 64px;
    color: var(--gray-300);
    margin-bottom: var(--spacing-md);
}

.cart-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--gray-100);
}

.cart-item__image {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--gray-50);
    flex-shrink: 0;
}

.cart-item__image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.cart-item__content {
    flex: 1;
    min-width: 0;
}

.cart-item__name {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 4px;
}

.cart-item__variant {
    font-size: 0.8125rem;
    color: var(--gray-500);
    margin-bottom: var(--spacing-sm);
}

.cart-item__actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cart-item__quantity {
    display: flex;
    align-items: center;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
}

.cart-item__qty-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--gray-600);
}

.cart-item__qty-btn:hover {
    color: var(--brand-secondary);
}

.cart-item__qty-value {
    width: 32px;
    text-align: center;
    font-size: 0.875rem;
    font-weight: 500;
}

.cart-item__price {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--brand-primary);
}

.cart-item__remove {
    color: var(--gray-400);
    font-size: 0.75rem;
    margin-top: var(--spacing-xs);
}

.cart-item__remove:hover {
    color: var(--danger);
    text-decoration: underline;
}

.cart-drawer__footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

.cart-drawer__totals {
    margin-bottom: var(--spacing-md);
}

.cart-drawer__row {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
    font-size: 0.9375rem;
    color: var(--gray-600);
}

.cart-drawer__row--total {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-800);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--gray-200);
    margin-top: var(--spacing-sm);
}

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

/* ============================================
   PÁGINA DE CARRITO
   ============================================ */
.cart-page {
    padding: var(--spacing-xl) 0 var(--spacing-3xl);
}

.cart-page__title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--brand-primary);
    margin-bottom: var(--spacing-xl);
}

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

@media (min-width: 968px) {
    .cart-page__grid {
        grid-template-columns: 1fr 380px;
    }
}

.cart-page__items {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.cart-page__header {
    display: none;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
}

@media (min-width: 768px) {
    .cart-page__header {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 40px;
        gap: var(--spacing-md);
    }
}

.cart-page__item {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-100);
    align-items: center;
}

@media (min-width: 768px) {
    .cart-page__item {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 40px;
    }
}

.cart-page__product {
    display: flex;
    gap: var(--spacing-md);
    width: 100%;
}

@media (min-width: 768px) {
    .cart-page__product {
        width: auto;
    }
}

.cart-page__summary {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    height: fit-content;
    position: sticky;
    top: calc(var(--header-height) + var(--spacing-lg));
}

.cart-page__summary-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--gray-200);
}

/* ============================================
   CHECKOUT
   ============================================ */
.checkout-page {
    padding: var(--spacing-xl) 0 var(--spacing-3xl);
}

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

@media (min-width: 968px) {
    .checkout-grid {
        grid-template-columns: 1fr 400px;
    }
}

.checkout-form {
    background: var(--white);
}

.checkout-section {
    margin-bottom: var(--spacing-xl);
}

.checkout-section__title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--brand-primary);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--brand-light);
}

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

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: var(--spacing-xs);
}

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    font-size: 1rem;
    color: var(--gray-800);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--brand-secondary);
    box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.1);
}

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

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

@media (min-width: 640px) {
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

/* Mapa de ubicación */
.map-container {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--gray-300);
}

.map {
    width: 100%;
    height: 280px;
    background: var(--gray-100);
}

@media (min-width: 640px) {
    .map {
        height: 350px;
    }
}

.map-locate-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 1000;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    color: var(--gray-600);
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
}

.map-locate-btn:hover {
    background: var(--brand-secondary);
    border-color: var(--brand-secondary);
    color: var(--white);
}

.map-locate-btn.loading {
    pointer-events: none;
}

.map-locate-btn.loading svg {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.map-hint {
    font-size: 0.8125rem;
    color: var(--gray-500);
    margin-top: var(--spacing-xs);
}

/* Payment methods */
.payment-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.payment-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.payment-method:hover,
.payment-method.selected {
    border-color: var(--brand-secondary);
}

.payment-method__radio {
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.payment-method.selected .payment-method__radio {
    border-color: var(--brand-secondary);
}

.payment-method.selected .payment-method__radio::after {
    content: '';
    width: 10px;
    height: 10px;
    background: var(--brand-secondary);
    border-radius: var(--radius-full);
}

.payment-method__content {
    flex: 1;
}

.payment-method__name {
    font-weight: 600;
    color: var(--gray-800);
}

.payment-method__desc {
    font-size: 0.8125rem;
    color: var(--gray-500);
}

.payment-method__logos {
    display: flex;
    gap: var(--spacing-xs);
}

.payment-method__logos img {
    height: 24px;
}

/* Order summary */
.order-summary {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    height: fit-content;
    position: sticky;
    top: calc(var(--header-height) + var(--spacing-lg));
}

.order-summary__title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--spacing-lg);
}

.order-summary__items {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
}

.order-summary__item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.order-summary__item:last-child {
    margin-bottom: 0;
}

.order-summary__item-image {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--white);
    flex-shrink: 0;
}

.order-summary__item-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.order-summary__item-info {
    flex: 1;
}

.order-summary__item-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-800);
}

.order-summary__item-qty {
    font-size: 0.8125rem;
    color: var(--gray-500);
}

.order-summary__item-price {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--gray-800);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--brand-primary);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
    .footer__grid {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

.footer__brand {
    max-width: 300px;
}

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

.footer__logo-text {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer__desc {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

.footer__title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer__links {
    list-style: none;
}

.footer__links li {
    margin-bottom: var(--spacing-sm);
}

.footer__links a {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-fast);
}

.footer__links a:hover {
    color: var(--white);
}

.footer__bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   CONFIRMACIÓN
   ============================================ */
.confirmation-page {
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.confirmation__icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-xl);
    background: var(--success);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.confirmation__icon svg {
    width: 40px;
    height: 40px;
    color: var(--white);
}

.confirmation__title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--brand-primary);
    margin-bottom: var(--spacing-md);
}

.confirmation__message {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.confirmation__order-number {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--spacing-xl);
}

.confirmation__order-number span {
    color: var(--brand-secondary);
}

/* ============================================
   FLOATING WHATSAPP BUTTON
   ============================================ */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #25D366;
    color: white;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: transform 0.2s;
    font-weight: 600;
}

.whatsapp-float:hover {
    transform: scale(1.05);
}

.whatsapp-float svg {
    width: 28px;
    height: 28px;
}

/* ============================================
   URGENCY BAR
   ============================================ */
.urgency-bar {
    background: #fff3cd;
    border: 1px solid #ffc107;
    border-radius: 8px;
    padding: 12px 16px;
    margin: 16px 0;
}

.urgency-item {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 8px 0;
}

.urgency-icon {
    font-size: 1.2rem;
}

.stock-indicator {
    margin-top: 4px;
}

.stock-dot {
    width: 8px;
    height: 8px;
    background: #28a745;
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* ============================================
   PAYMENT METHODS
   ============================================ */
.payment-methods {
    margin: 20px 0;
    padding: 16px;
    background: #f8f9fa;
    border-radius: 8px;
}

.payment-label {
    font-size: 14px;
    color: #666;
    display: block;
    margin-bottom: 8px;
}

.payment-icons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.payment-icons img {
    height: 24px;
    width: auto;
}

/* ============================================
   COMPARISON TABLE
   ============================================ */
.comparison-section {
    margin: 20px 0;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.comparison-table th,
.comparison-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.comparison-table th {
    background: #f8f9fa;
    font-weight: 600;
}

.comparison-table .check {
    color: #28a745;
    font-weight: bold;
}

.comparison-table .x {
    color: #dc3545;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .whatsapp-float span {
        display: none;
    }

    .whatsapp-float {
        padding: 14px;
        border-radius: 50%;
    }

    .urgency-bar {
        padding: 10px 12px;
    }

    .urgency-item {
        font-size: 0.9rem;
    }

    .payment-methods {
        padding: 12px;
    }

    .payment-icons {
        gap: 8px;
    }

    .payment-icons img {
        height: 20px;
    }

    .comparison-table {
        font-size: 0.85rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 8px;
    }
}

@media (max-width: 639px) {
    .product-info__title {
        font-size: 1.5rem;
    }

    .price__current {
        font-size: 1.75rem;
    }

    .trust-badges {
        grid-template-columns: 1fr;
        text-align: left;
    }

    .trust-badge {
        flex-direction: row;
        gap: var(--spacing-md);
    }

    .whatsapp-float {
        bottom: 15px;
        right: 15px;
        width: 50px;
        height: 50px;
        padding: 0;
        justify-content: center;
    }

    .whatsapp-float svg {
        width: 24px;
        height: 24px;
    }

    .comparison-table {
        font-size: 0.8rem;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 6px;
    }
}