/* ============================================
   PRODUCTOS — Catálogo Roble Construcciones
   Reutiliza las variables de style.css
   (--ink, --signal, --concrete, --border, etc.)
   ============================================ */

/* ---------- HERO DE PRODUCTOS ---------- */
.products-hero {
    background:
        linear-gradient(100deg, rgba(16,17,20,0.94) 0%, rgba(16,17,20,0.80) 55%, rgba(16,17,20,0.6) 100%),
        url('../img/persiana.jpg') center/cover no-repeat;
    padding: 90px 0 80px;
    text-align: left;
}
.products-hero h1 { color: var(--paper); margin-bottom: 18px; }
.products-hero-subtitle {
    color: rgba(255,255,255,0.82);
    font-size: 1.1rem;
    max-width: 560px;
}

/* ---------- SECCIÓN CATÁLOGO ---------- */
.catalog-section { padding: 70px 0 100px; background: var(--concrete); }

/* ---------- FILTROS (mismo estilo que proyectos) ---------- */
.product-filters {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 44px;
}
.product-filter-btn {
    padding: 9px 18px;
    border: 2px solid var(--border);
    background: var(--paper);
    border-radius: var(--radius);
    cursor: pointer;
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    transition: var(--transition);
}
.product-filter-btn:hover,
.product-filter-btn.active {
    background: var(--ink);
    color: var(--paper);
    border-color: var(--ink);
}

/* ---------- CUADRÍCULA ----------
   Escritorio: se ajusta automáticamente (3–4 por fila)
   Tablet: 2 · Celular: 1
*/
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 26px;
}

/* ---------- TARJETA DE PRODUCTO ---------- */
.product-card {
    position: relative;
    background: var(--paper);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
    transition: var(--transition);
    /* estado inicial para animación reveal */
    opacity: 0;
    transform: translateY(24px);
}
.product-card.visible { opacity: 1; transform: translateY(0); }
.product-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-6px);
    border-color: #d6d3cc;
}

/* Imagen (proporción fija, nunca se deforma) */
.product-image {
    position: relative;
    aspect-ratio: 4 / 5;
    overflow: hidden;
    background: var(--concrete);
}
.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}
.product-card:hover .product-image img { transform: scale(1.06); }

/* Marco de esquinas técnicas (motivo de la marca) al hacer hover */
.product-image::after {
    content: '';
    position: absolute;
    inset: 14px;
    background:
        linear-gradient(var(--signal), var(--signal)) top left / 20px 3px no-repeat,
        linear-gradient(var(--signal), var(--signal)) top left / 3px 20px no-repeat,
        linear-gradient(var(--signal), var(--signal)) top right / 20px 3px no-repeat,
        linear-gradient(var(--signal), var(--signal)) top right / 3px 20px no-repeat,
        linear-gradient(var(--signal), var(--signal)) bottom left / 20px 3px no-repeat,
        linear-gradient(var(--signal), var(--signal)) bottom left / 3px 20px no-repeat,
        linear-gradient(var(--signal), var(--signal)) bottom right / 20px 3px no-repeat,
        linear-gradient(var(--signal), var(--signal)) bottom right / 3px 20px no-repeat;
    opacity: 0;
    transition: opacity 0.3s ease, inset 0.3s ease;
    pointer-events: none;
}
.product-card:hover .product-image::after { opacity: 1; inset: 10px; }

/* Badge de descuento */
.product-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--signal);
    color: var(--paper);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.78rem;
    letter-spacing: 0.5px;
    padding: 6px 12px;
    border-radius: 30px;
    z-index: 2;
    box-shadow: 0 4px 12px rgba(232,114,12,0.35);
}

/* Etiqueta de categoría sobre la imagen */
.product-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(16,17,20,0.85);
    color: var(--paper);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.68rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 5px 11px;
    border-radius: 4px;
    z-index: 2;
}

/* Cuerpo de la tarjeta */
.product-body {
    padding: 22px 20px 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.product-name {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    color: var(--ink);
    margin-bottom: 8px;
}
.product-desc {
    font-size: 0.9rem;
    color: var(--cement);
    line-height: 1.55;
    margin-bottom: 16px;
}

/* Precios */
.product-prices {
    display: flex;
    align-items: baseline;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 16px;
}
.price-old {
    font-size: 0.9rem;
    color: var(--cement);
    text-decoration: line-through;
}
.price-old .price-label,
.price-now .price-label {
    display: block;
    font-family: var(--font-display);
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--cement);
    text-decoration: none;
    margin-bottom: 1px;
}
.price-now .price-label { color: var(--signal); }
.price-now {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.75rem;
    line-height: 1;
    color: var(--ink);
}

/* Especificaciones: color y medidas */
.product-specs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 14px 0;
    margin-bottom: 18px;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.spec-label {
    display: block;
    font-family: var(--font-display);
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--cement);
    margin-bottom: 5px;
}
.spec-value {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--ink);
}
.color-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 1px solid rgba(0,0,0,0.15);
    flex-shrink: 0;
}

/* Botón WhatsApp (usa .btn-whatsapp de style.css, aquí a ancho completo) */
.product-body .btn-whatsapp {
    margin-top: auto;
    width: 100%;
    gap: 8px;
    padding: 13px 20px;
    font-size: 0.85rem;
}
.product-body .btn-whatsapp .wa-icon { font-size: 1.05rem; line-height: 1; }

/* Mensaje sin productos */
.products-empty {
    text-align: center;
    font-size: 1rem;
    color: var(--cement);
    padding: 40px 0;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1200px) {
    .products-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 1024px) {
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .products-hero { padding: 70px 0 60px; }
}
@media (max-width: 768px) {
    .catalog-section { padding: 50px 0 60px; }
    .products-hero { padding: 60px 0 50px; }
}
@media (max-width: 560px) {
    .products-grid { grid-template-columns: 1fr; gap: 22px; }
    .product-image { aspect-ratio: 4 / 3; }  /* menos alto en celular */
}
@media (max-width: 380px) {
    .product-specs { grid-template-columns: 1fr; }
}