/* ==========================================================================
   1. VARIABLES DE DISEÑO Y RESETEO SEMÁNTICO
   ========================================================================== */
:root {
    --primary: #0f2537;       /* Azul profundo (Denota solidez corporativa y confianza) */
    --accent: #c5a059;        /* Dorado mate / Tono madera premium (Calidad y lujo) */
    --text: #2d3748;
    --light-bg: #f7fafc;
    --white: #ffffff;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    --max-width: 1200px;
}

/* ==========================================================================
   ACTUALIZACIÓN DE IMÁGENES HERO Y B2B (IMAGE_0.PNG INTEGRADA)
   ========================================================================== */

/* PUNTO 1: Hero con imagen de fondo visual profunda */
.hero.hero-visual-bg {
    /* Aquí aplicamos la imagen generada (image_0.png) como fondo */
    /* SUGERENCIA: Asegúrate de optimizar esta imagen (ej. .webp) antes de subirla */
    background: linear-gradient(rgba(15, 37, 55, 0.9), rgba(15, 37, 55, 0.85)), 
                url('../images/kitchen-hero-united.webp') no-repeat center/cover;
    
    /* El degradado asegura legibilidad del texto blanco */
    padding: 6rem 1rem; /* Aumentamos el padding para lucir más la imagen */
}

/* PUNTO 3: Sección B2B con una imagen de fondo sutil (ej. textura de construcción) */
.contractor-cta.contractor-visual-bg {
    background: linear-gradient(rgba(15, 37, 55, 0.95), rgba(11, 26, 39, 0.98)), 
                url('../images/contractor-bg.webp') no-repeat center/cover;
    padding: 6rem 1rem;
}

/* ==========================================================================
   OPTIMIZACIÓN DE TARJETAS DE PRODUCTO (IMAGE_CARD)
   ========================================================================== */

/* Actualizamos la Grid y las Tarjetas */
.grid-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem; /* Aumentamos el gap */
    max-width: var(--max-width);
    margin: 0 auto;
}

.product-card {
    background: var(--white);
    /* Ya no usamos padding global, lo dividimos en card-body */
    border-radius: 8px; /* Bordes más suaves */
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05); /* Sombra más suave y moderna */
    display: flex;
    flex-direction: column;
    overflow: hidden; /* Importante para que la imagen respete los bordes redondeados */
    border-top: 5px solid var(--primary);
    transition: transform 0.3s ease; /* Pequeño efecto hover */
}
.product-card:hover { transform: translateY(-5px); }

/* Definimos cómo se comportan las imágenes de las tarjetas */
.card-image {
    width: 100%;
    height: 220px; /* Altura fija para consistencia visual */
    object-fit: cover; /* Recorta la imagen proporcionalmente para llenar el espacio */
    object-position: center; /* Centra el recorte */
    border-bottom: 1px solid #eaeaea;
}

/* Definimos el padding para el texto dentro de la tarjeta */
.card-body {
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

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

body {
    font-family: var(--font);
    line-height: 1.6;
    color: var(--text);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
}

/* Accesibilidad teclado */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--accent);
    color: var(--primary);
    padding: 10px;
    z-index: 1000;
    transition: top 0.2s;
    font-weight: bold;
}
.skip-link:focus { top: 0; }

/* ==========================================================================
   2. ARQUITECTURA VISUAL (MOBILE-FIRST)
   ========================================================================== */

/* Header & Navegación */
.main-header {
    background-color: var(--white);
    border-bottom: 2px solid var(--light-bg);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem;
    gap: 1rem;
}

.logo {
    text-decoration: none;
    font-size: 1.3rem;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.logo strong { color: var(--accent); }

.main-nav ul {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    gap: 1rem;
    justify-content: center;
    align-items: center;
}

.main-nav a {
    text-decoration: none;
    color: var(--text);
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.2s;
}
.main-nav a:hover { color: var(--accent); }

.btn-nav {
    background-color: var(--primary);
    color: var(--white) !important;
    padding: 0.5rem 1rem;
    border-radius: 4px;
}
.btn-nav:hover { background-color: var(--accent); color: var(--primary) !important; }

/* Hero Section */
.hero {
    background: linear-gradient(rgba(15, 37, 55, 0.9), rgba(15, 37, 55, 0.85)), url('/assets/images/kitchen-hero.jpg') no-repeat center/cover;
    color: var(--white);
    padding: 4rem 1rem;
    text-align: center;
}

.hero h1 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.05rem;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-inline: auto;
    color: #e2e8f0;
}

.hero-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 700;
    text-align: center;
    transition: all 0.2s;
}

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

/* Grid de Categorías (Silos) */
.product-silos {
    padding: 4rem 1rem;
    background-color: var(--light-bg);
}

.product-silos h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary);
    font-size: 1.8rem;
}

.grid-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: var(--max-width);
    margin: 0 auto;
}

.product-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 6px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
    display: flex;
    flex-direction: column;
    border-top: 4px solid var(--primary);
}

.product-card h3 { margin-bottom: 1rem; color: var(--primary); font-size: 1.4rem; }
.product-card p { margin-bottom: 1.5rem; color: #4a5568; flex-grow: 1; }
.product-card .card-link { color: var(--accent); font-weight: 700; text-decoration: none; }
.product-card .card-link:hover { text-decoration: underline; }

/* Contractor CTA / Bloque de Captura Lead */
.contractor-cta {
    padding: 5rem 1rem;
    background-color: var(--primary);
    color: var(--white);
    text-align: center;
}

.b2b-container { max-width: 800px; margin: 0 auto; }
.contractor-cta h2 { font-size: 1.8rem; margin-bottom: 1rem; color: var(--accent); }
.contractor-cta p { margin-bottom: 2rem; color: #cbd5e0; }

/* Footer & Datos NAP */
.main-footer {
    background-color: #0b1a27;
    color: var(--white);
    padding: 4rem 1rem 2rem 1rem;
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.footer-info h3 { color: var(--accent); margin-bottom: 1rem; }
.footer-info address { font-style: normal; line-height: 2; color: #a0aec0; }
.footer-info address a { color: var(--white); text-decoration: none; }

.footer-meta {
    border-top: 1px solid #1a2e3e;
    padding-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    font-size: 0.85rem;
    color: #a0aec0;
}

.footer-meta ul { list-style: none; display: flex; gap: 1.5rem; }
.footer-meta a { color: #cbd5e0; text-decoration: none; }
.footer-meta a:hover { color: var(--accent); }

/* ==========================================================================
   3. MEDIA QUERIES (OPTIMIZACIÓN TABLET Y ESCRITORIO)
   ========================================================================== */
@media (min-width: 768px) {
    /* ... resto del header/nav ... */

    /* Aumentamos el Hero para que sea aún más impactante en escritorio */
    .hero.hero-visual-bg { padding: 10rem 2rem; }
    .hero h1 { font-size: 4rem; }

    /* La Grid de tarjetas ya está optimizada para 3 columnas */

    .header-container {
        flex-direction: row;
        justify-content: space-between;
        max-width: var(--max-width);
        margin: 0 auto;
        padding: 1.5rem 2rem;
    }

    .hero { padding: 8rem 2rem; }
    .hero h1 { font-size: 3.5rem; }
    .hero-actions { flex-direction: row; justify-content: center; gap: 1.5rem; }

    .grid-container { grid-template-columns: repeat(3, 1fr); padding: 0 2rem; }
    
    .footer-container {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-start;
        padding: 0 2rem;
    }
    .footer-meta { flex-direction: row; justify-content: space-between; width: 100%; }
}