/**
 * Estilos públicos - Mercadito Circular
 *
 * Diseño responsive, mobile-first.
 * Sin frameworks externos.
 *
 * @package MercaditoCircular
 * @since 1.0.0
 */

/* ==========================================================================
   Variables CSS
   ========================================================================== */
:root {
    --mc-primary: #2e7d32;
    --mc-primary-dark: #1b5e20;
    --mc-primary-light: #e8f5e9;
    --mc-text: #1a1a1a;
    --mc-text-secondary: #666;
    --mc-border: #e0e0e0;
    --mc-bg: #f5f5f5;
    --mc-white: #ffffff;
    --mc-radius: 8px;
    --mc-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --mc-shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.12);
    --mc-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}

/* ==========================================================================
   Base
   ========================================================================== */
.mc-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px;
}

/* ==========================================================================
   Filtros
   ========================================================================== */
.mc-filtros {
    background: var(--mc-white);
    padding: 16px;
    border-radius: var(--mc-radius);
    box-shadow: var(--mc-shadow);
    margin-bottom: 20px;
}

.mc-filtros-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

@media (min-width: 600px) {
    .mc-filtros-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }
}

@media (min-width: 900px) {
    .mc-filtros-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: 16px;
        align-items: end;
    }
}

.mc-filtro-item label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--mc-text);
    margin-bottom: 4px;
}

.mc-filtro-item select,
.mc-filtro-item input[type="number"] {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--mc-border);
    border-radius: 6px;
    font-size: 14px;
    font-family: var(--mc-font);
    background: var(--mc-white);
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.mc-filtro-item select:focus,
.mc-filtro-item input[type="number"]:focus {
    border-color: var(--mc-primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.1);
}

.mc-filtro-actions {
    display: flex;
    gap: 8px;
    align-items: end;
}

@media (min-width: 600px) {
    .mc-filtro-actions {
        grid-column: 1 / -1;
    }
}

/* ==========================================================================
   Botones
   ========================================================================== */
.mc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.2s, transform 0.1s;
    font-family: var(--mc-font);
    line-height: 1.2;
}

.mc-btn:active {
    transform: scale(0.97);
}

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

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

.mc-btn-secondary {
    background: var(--mc-bg);
    color: var(--mc-text);
    border: 1px solid var(--mc-border);
}

.mc-btn-secondary:hover {
    background: var(--mc-border);
}

/* ==========================================================================
   Cuadrícula de productos (mobile-first: 1 columna)
   ========================================================================== */
.mc-productos-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

@media (min-width: 600px) {
    .mc-productos-grid {
        grid-template-columns: 1fr 1fr 1fr 1fr;
        gap: 20px;
    }
}

/* ==========================================================================
   Tarjeta de producto
   ========================================================================== */
.mc-card {
    background: var(--mc-white);
    border-radius: var(--mc-radius);
    box-shadow: var(--mc-shadow);
    overflow: hidden;
    transition: box-shadow 0.2s, transform 0.2s;
}

.mc-card:hover {
    box-shadow: var(--mc-shadow-hover);
    transform: translateY(-2px);
}

.mc-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.mc-card-image {
    position: relative;
    width: 100%;
    padding-top: 66%;
    overflow: hidden;
    background: var(--mc-bg);
}

.mc-card-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.mc-card-body {
    padding: 14px;
}

@media (min-width: 600px) {
    .mc-card-body {
        padding: 16px;
    }
}

.mc-card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--mc-text);
    margin: 0 0 6px;
    line-height: 1.3;
}

.mc-card-description {
    font-size: 13px;
    color: var(--mc-text-secondary);
    margin: 0 0 10px;
    line-height: 1.4;
}

.mc-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--mc-text-secondary);
    margin-bottom: 6px;
}

.mc-card-price {
    font-size: 18px;
    font-weight: 700;
    color: var(--mc-primary);
}

.mc-card-login-notice {
    font-size: 12px;
    color: var(--mc-text-secondary);
    font-style: italic;
    padding-top: 8px;
    border-top: 1px solid var(--mc-border);
}

/* ==========================================================================
   Paginación
   ========================================================================== */
.mc-paginacion {
    margin-top: 32px;
    text-align: center;
}

.mc-paginacion ul {
    display: inline-flex;
    flex-wrap: wrap;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 4px;
}

.mc-paginacion li {
    margin: 0;
}

.mc-paginacion a,
.mc-paginacion span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border: 1px solid var(--mc-border);
    border-radius: 6px;
    font-size: 14px;
    text-decoration: none;
    color: var(--mc-text);
    background: var(--mc-white);
    transition: background 0.2s, border-color 0.2s;
    box-sizing: border-box;
}

.mc-paginacion .current {
    background: var(--mc-primary);
    color: var(--mc-white);
    border-color: var(--mc-primary);
}

.mc-paginacion a:hover {
    background: var(--mc-primary-light);
    border-color: var(--mc-primary);
}

/* ==========================================================================
   Producto individual
   ========================================================================== */
.mc-single-producto {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 16px;
}

@media (min-width: 768px) {
    .mc-single-producto {
        padding: 32px 16px;
    }
}

.mc-single-back {
    margin-bottom: 20px;
}

.mc-single-back a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--mc-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: opacity 0.2s;
}

.mc-single-back a:hover {
    opacity: 0.7;
}

.mc-single-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 768px) {
    .mc-single-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

/* Galería */
.mc-single-gallery {
    position: relative;
}

@media (min-width: 768px) {
    .mc-single-gallery {
        position: sticky;
        top: 32px;
        align-self: start;
    }
}

.mc-gallery-main {
    width: 100%;
    border-radius: var(--mc-radius);
    overflow: hidden;
    background: var(--mc-bg);
    margin-bottom: 10px;
}

.mc-gallery-main img {
    width: 100%;
    height: auto;
    display: block;
    cursor: pointer;
    transition: opacity 0.2s;
}

.mc-gallery-thumbs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.mc-gallery-thumb {
    width: 70px;
    height: 70px;
    object-fit: cover;
    border-radius: 6px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.2s, opacity 0.2s;
    opacity: 0.6;
}

@media (min-width: 768px) {
    .mc-gallery-thumb {
        width: 80px;
        height: 80px;
    }
}

.mc-gallery-thumb.active,
.mc-gallery-thumb:hover {
    border-color: var(--mc-primary);
    opacity: 1;
}

.mc-gallery-placeholder {
    width: 100%;
    padding-top: 66%;
    position: relative;
    background: var(--mc-bg);
    border-radius: var(--mc-radius);
    overflow: hidden;
}

.mc-gallery-placeholder img {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 50%;
    opacity: 0.3;
}

/* Información del producto */
.mc-single-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--mc-text);
    margin: 0 0 12px;
}

@media (min-width: 768px) {
    .mc-single-title {
        font-size: 28px;
        margin: 0 0 16px;
    }
}

.mc-single-price {
    font-size: 26px;
    font-weight: 700;
    color: var(--mc-primary);
    margin-bottom: 20px;
}

@media (min-width: 768px) {
    .mc-single-price {
        font-size: 32px;
    }
}

.mc-single-meta {
    margin-bottom: 20px;
}

.mc-meta-item {
    display: flex;
    flex-direction: column;
    padding: 8px 0;
    border-bottom: 1px solid var(--mc-border);
    font-size: 14px;
    gap: 2px;
}

@media (min-width: 480px) {
    .mc-meta-item {
        flex-direction: row;
        gap: 0;
    }
}

.mc-meta-label {
    font-weight: 600;
    color: var(--mc-text);
    min-width: 120px;
    flex-shrink: 0;
}

.mc-meta-value {
    color: var(--mc-text-secondary);
}

.mc-single-description,
.mc-single-contacto {
    margin-top: 20px;
}

.mc-single-description h3,
.mc-single-contacto h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--mc-text);
    margin: 0 0 10px;
}

.mc-single-description {
    font-size: 15px;
    line-height: 1.7;
    color: var(--mc-text);
}

.mc-contacto-content {
    background: var(--mc-primary-light);
    padding: 16px;
    border-radius: var(--mc-radius);
    font-size: 14px;
    line-height: 1.6;
    white-space: pre-line;
}

/* ==========================================================================
   Sin resultados
   ========================================================================== */
.mc-no-results {
    text-align: center;
    padding: 60px 20px;
    color: var(--mc-text-secondary);
    font-size: 16px;
    background: var(--mc-white);
    border-radius: var(--mc-radius);
    box-shadow: var(--mc-shadow);
}

/* ==========================================================================
   Animaciones
   ========================================================================== */
@keyframes mc-fade-in {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

.mc-card {
    animation: mc-fade-in 0.3s ease both;
}

.mc-card:nth-child(1) { animation-delay: 0.02s; }
.mc-card:nth-child(2) { animation-delay: 0.04s; }
.mc-card:nth-child(3) { animation-delay: 0.06s; }
.mc-card:nth-child(4) { animation-delay: 0.08s; }
.mc-card:nth-child(5) { animation-delay: 0.10s; }
.mc-card:nth-child(6) { animation-delay: 0.12s; }
.mc-card:nth-child(7) { animation-delay: 0.14s; }
.mc-card:nth-child(8) { animation-delay: 0.16s; }
.mc-card:nth-child(9) { animation-delay: 0.18s; }
.mc-card:nth-child(10) { animation-delay: 0.20s; }