/*
  styles.css
  Estilos para la tienda de calzado UrbanaFlex.
*/

/* --- Variables y Estilos Base --- */
:root {
    --font-primary: 'Poppins', sans-serif;
    --color-background: #F9F5F6; /* Rosa pálido/grisáceo */
    --color-text: #333333; /* Gris oscuro */
    --color-primary: #C0A080; /* Nude/Oro rosado */
    --color-accent: #A4508B; /* Vino/Borgoña */
    --color-accent-dark: #69305A;
    --color-white: #FFFFFF;
    --shadow-soft: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 8px 24px rgba(0, 0, 0, 0.12);
    --border-radius: 12px;
    --transition-smooth: all 0.3s ease-in-out;
}

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

html {
    scroll-behavior: smooth; /* Afecta el scroll dentro de la página, no entre páginas */
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

/* --- Clases de utilidad --- */
.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;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 8px;
    border: none;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.btn-primary {
    background-color: var(--color-accent);
    background-image: linear-gradient(45deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: var(--color-white);
    box-shadow: 0 2px 8px rgba(164, 80, 139, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(164, 80, 139, 0.4);
}

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

.btn-secondary:hover {
    background-color: #C8A97E;
    transform: translateY(-2px);
}

/* --- Header --- */
.header {
    background-color: var(--color-white);
    padding: 1rem 0;
    box-shadow: var(--shadow-soft);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
}

.logo-accent {
    color: var(--color-accent);
}

.header-search input {
    padding: 0.5rem 1rem;
    border: 2px solid #EAEAEA;
    border-radius: 20px;
    font-family: var(--font-primary);
    transition: border-color 0.3s;
    width: 150px;
}

.header-search input:focus {
    outline: none;
    border-color: var(--color-primary);
    width: 200px;
}

/* --- Hero Section --- */
.hero-section {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 6rem 2rem;
    flex-grow: 1; /* Hace que la sección hero ocupe el espacio disponible */
    color: var(--color-white);
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), url('https://images.unsplash.com/photo-1543163521-1bf539c55dd2?q=80&w=2080&auto=format&fit=crop') no-repeat center center/cover;
    /* Sugerencia: Reemplaza la URL con una imagen propia de alta calidad */
}

.hero-content {
    max-width: 800px;
    animation: fadeIn 1s ease-in-out;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.2rem;
    font-weight: 300;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-btn {
    padding: 15px 30px;
    font-size: 1.1rem;
}

/* --- Filtros --- */
.filters-section {
    padding: 2rem 0;
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    align-items: center;
    justify-content: space-between;
}

.category-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.category-filters .filter-btn {
    padding: 8px 16px;
    border: 1px solid var(--color-primary);
    background-color: transparent;
    color: var(--color-primary);
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition-smooth);
}

.category-filters .filter-btn:hover {
    background-color: var(--color-primary);
    color: var(--color-text);
    opacity: 0.8;
}

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

.sort-filter select {
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid #DDD;
    background-color: var(--color-white);
    font-family: var(--font-primary);
}

/* --- Grid de Productos --- */
.product-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: 1fr;
}

.product-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    border: 1px solid transparent;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
    position: relative;
}

.product-card:hover {
    transform: translateY(-5px);
    border-color: #EAEAEA;
    box-shadow: var(--shadow-medium);
}

.product-card__image-container {
    width: 100%;
    padding-top: 100%; /* Aspect ratio 1:1 */
    position: relative;
    background-color: #f0f0f0;
}

.product-card__image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

.product-card__tag {
    position: absolute;
    top: 1rem;
    left: 1rem;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-white);
}

.product-card__tag--new { background-color: var(--color-accent); }
.product-card__tag--offer { background-color: #3498db; }

.product-card__content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.product-card__category {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: #999;
    margin-bottom: 0.5rem;
}

.product-card__name {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-text);
}

.product-card__description {
    font-size: 0.9rem;
    margin-bottom: 1rem;
    flex-grow: 1;
}

.product-card__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

.product-card__price {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-accent);
}

.product-card__footer .view-details-btn {
    background-color: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    font-weight: 600;
}

.product-card__footer .view-details-btn:hover {
    background-color: var(--color-primary);
    color: var(--color-text);
    transform: none; /* Evita el doble transform */
    box-shadow: none;
}

.load-more-container {
    text-align: center;
    padding: 2rem 0;
}

#load-more-btn.hidden {
    display: none;
}

/* --- Modal --- */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    visibility: hidden;
    opacity: 0;
    transition: visibility 0s 0.3s, opacity 0.3s ease;
}

.modal.is-visible {
    visibility: visible;
    opacity: 1;
    transition-delay: 0s;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    cursor: pointer;
}

.modal-content {
    position: relative;
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-medium);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal.is-visible .modal-content {
    transform: scale(1);
}

.modal-content--small {
    max-width: 450px;
}

.modal-close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 2rem;
    color: #999;
    cursor: pointer;
    line-height: 1;
    transition: color 0.3s;
}

.modal-close-btn:hover {
    color: var(--color-text);
}

.modal-body {
    padding: 2rem;
    display: grid;
    gap: 2rem;
}

.modal-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 1rem;
}

.modal-gallery__img {
    width: 100%;
    height: auto;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 8px;
    border: 2px solid #eee;
}

.modal-details__title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.modal-details__description {
    margin-bottom: 1.5rem;
}

.modal-options {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-options label {
    font-weight: 600;
}

.modal-options select {
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid #DDD;
}

.modal-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

/* --- Notificaciones --- */
.notification-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.notification {
    position: relative;
    padding: 16px 16px 16px 50px;
    border-radius: 8px;
    color: var(--color-text);
    background-color: var(--color-white);
    box-shadow: var(--shadow-medium);
    opacity: 0;
    min-width: 300px;
    max-width: 350px;
    font-weight: 500;
    border-left: 5px solid;
    animation: slideIn 0.4s ease-out forwards, fadeOut 0.4s ease-in 2.6s forwards;
}

.notification::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

.notification.error { border-color: #e74c3c; }
.notification.error::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23e74c3c'%3E%3Cpath d='M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm1 15h-2v-2h2v2zm0-4h-2V7h2v6z'/%3E%3C/svg%3E");
}

.notification.success { border-color: #2ecc71; }
.notification.success::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%232ecc71'%3E%3Cpath d='M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-2 15l-5-5 1.41-1.41L10 14.17l7.59-7.59L19 8l-9 9z'/%3E%3C/svg%3E");
}

.notification.warning { border-color: #f39c12; }
.notification.warning::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23f39c12'%3E%3Cpath d='M1 21h22L12 2 1 21zm12-3h-2v-2h2v2zm0-4h-2v-4h2v4z'/%3E%3C/svg%3E");
}

@keyframes slideIn {
    from {
        transform: translateX(110%);
        opacity: 0;
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
        transform: translateX(110%);
    }
}

/* --- Footer --- */
.footer {
    background-color: #333;
    color: #ccc;
    text-align: center;
    padding: 1.5rem 0;
    /* Añadimos margen solo si no es la página de inicio para separar los productos del footer */
}

.product-grid-section + .footer {
     margin-top: 2rem;
}

.footer p {
    font-size: 0.85rem;
    margin: 0.25rem 0;
}

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

/* --- Página de Login --- */
.login-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    flex-grow: 1;
}

.login-form {
    background-color: var(--color-white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    width: 100%;
    max-width: 400px;
}

.login-form h1 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--color-text);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 1rem;
    resize: vertical; /* Permite redimensionar solo verticalmente */
}

.login-form .btn {
    width: 100%;
    padding: 12px;
    font-size: 1.1rem;
}

#login-error {
    color: #e74c3c;
    text-align: center;
    margin-top: 1rem;
    display: none;
}

/* --- Página de Admin --- */
.admin-page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
    border-bottom: 1px solid #eee;
    padding-bottom: 1.5rem;
}

.admin-page-header h1 {
    margin: 0;
}

.admin-panel {
    background: var(--color-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    margin-bottom: 2.5rem;
}

.admin-product-list {
    display: grid;
    gap: 1rem;
}

.admin-product-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid #f0f0f0;
    gap: 1rem;
}

.admin-product-item img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
}

.admin-product-item-info {
    flex-grow: 1;
}

.admin-product-item-info h4 {
    margin: 0;
}

.admin-product-item-actions {
    display: flex;
    gap: 0.5rem;
}

.admin-form-container {
    margin-top: 2rem;
    border-top: 1px solid #eee;
    padding-top: 2rem;
}

.admin-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.full-width-group {
    grid-column: 1 / -1; /* Ocupa todas las columnas del grid */
}

.category-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.category-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 8px 12px;
    background-color: #f1f1f1;
    border-radius: 20px;
    font-weight: 600;
}

.delete-category-btn {
    background: none;
    border: none;
    color: #999;
    cursor: pointer;
    font-size: 1.2rem;
    line-height: 1;
    padding: 0 0 0 5px;
    transition: color 0.2s;
}

.delete-category-btn:hover {
    color: #e74c3c;
}

.category-add-form {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
}

.category-add-form .form-group {
    flex-grow: 1;
    margin-bottom: 0;
}

/* --- Estilos para la cámara y previsualizaciones --- */
.image-previews {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}

.image-previews img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid #ddd;
}

#camera-feed {
    width: 100%;
    max-width: 500px;
    border-radius: 8px;
    margin-bottom: 1rem;
    background-color: #000;
}

#take-photo-btn {
    width: 100%;
    margin-bottom: 1.5rem;
}

.camera-previews-container {
    margin-bottom: 1.5rem;
}

.camera-previews-container h3 {
    margin-bottom: 1rem;
}

#camera-previews {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.camera-preview-item {
    position: relative;
}

.image-preview-item {
    position: relative;
    width: 80px; /* Ancho fijo para el contenedor */
    height: 80px; /* Alto fijo para el contenedor */
}

.camera-preview-item img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 8px;
}

/* Estilo unificado para todas las previsualizaciones */
.image-preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid #ddd;
}

.delete-preview-btn {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 24px;
    height: 24px;
    background-color: #e74c3c;
    color: white;
    border: 2px solid white;
    border-radius: 50%;
    font-size: 14px;
    font-weight: bold;
    line-height: 20px;
    text-align: center;
    cursor: pointer;
    transition: transform 0.2s;
}

.delete-preview-btn:hover {
    transform: scale(1.1);
}

/* --- Media Queries (Responsive) --- */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
    }
    .main-nav {
        order: 3;
        width: 100%;
        overflow-x: auto;
        padding-bottom: 10px;
    }
    .header-search {
        order: 2;
    }
    .modal-body {
        grid-template-columns: 1fr;
        padding: 1.5rem;
    }
    .modal-details__title {
        font-size: 1.5rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }
}

@media (min-width: 600px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

@media (min-width: 992px) {
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1200px) {
    .product-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* === INICIO DE ESTILOS MODERNOS PARA EL PANEL DE ADMINISTRACIÓN === */

/* --- Variables de Color para el Admin ---
Sobrescribimos las variables globales para tener un tema oscuro/profesional en el admin.
*/
body:has(.admin-page-header) {
    --color-background: #f4f7fa; /* Un gris muy claro para el fondo */
    --color-text: #34495e; /* Un azul/gris oscuro para el texto */
    --color-primary: #3498db; /* Azul brillante como primario */
    --color-accent: #9b59b6; /* Morado como acento */
    --color-accent-dark: #8e44ad;
    --color-white: #ffffff;
    --color-border: #e1e8ed; /* Un borde sutil */
    --color-success: #2ecc71;
    --color-danger: #e74c3c;
}

/* --- Dashboard de Estadísticas --- */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background-color: var(--color-white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    border-left: 5px solid var(--color-primary);
    transition: var(--transition-smooth);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.5s ease-out forwards;
}

/* Animación escalonada para las tarjetas */
.loaded .stat-card:nth-child(1) { animation-delay: 0.1s; }
.loaded .stat-card:nth-child(2) { animation-delay: 0.2s; }
.loaded .stat-card:nth-child(3) { animation-delay: 0.3s; }

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

.stat-card h4 {
    font-size: 1rem;
    color: #7f8c8d;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.stat-card p {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text);
}

.stat-card:nth-child(2) { border-color: var(--color-accent); }
.stat-card:nth-child(3) { border-color: var(--color-success); }

/* --- Rediseño de Paneles y Formularios --- */
.admin-panel h2, .admin-form-container h3 {
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    transition: var(--transition-smooth);
    background-color: #fdfdfd;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

/* --- Rediseño de la Lista de Productos --- */
.admin-product-list {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.admin-product-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
    border: 1px solid var(--color-border);
}

.admin-product-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.admin-product-item img {
    width: 100%;
    height: 180px;
    border-radius: 8px 8px 0 0;
    margin-bottom: 1rem;
}

.admin-product-item-info {
    width: 100%;
    padding: 0 1rem;
}

.admin-product-item-info p {
    color: #7f8c8d;
    font-size: 0.9rem;
}

.admin-product-item-actions {
    width: 100%;
    padding: 1rem;
    margin-top: 1rem;
    border-top: 1px solid var(--color-border);
}

/* --- Keyframes para Animaciones --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === FIN DE ESTILOS MODERNOS PARA EL PANEL DE ADMINISTRACIÓN === */