/* Tecnilight - Catálogo de Herrería
   Estilos globales para todas las vistas
*/

/* ============================================
   VARIABLES Y RESET
   ============================================ */
:root {
    /* Paleta Corporativa Tecnilight */
    --color-primary: #1A2C4A;
    --color-secondary: #16213e;
    --color-accent: #e94560;
    --color-accent-hover: #c73e54;
    --color-gold: #d4af37;
    --color-text: #1A2C4A;
    --color-text-light: #4a5568;
    --color-white: #ffffff;
    --color-cream: #F8F9FA;
    --color-gray-100: #f8f9fa;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --font-primary: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

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

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* ============================================
   NAVEGACIÓN
   ============================================ */
.navbar {
    background: var(--color-cream);
    color: var(--color-primary);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--color-gray-200);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    color: var(--color-gold);
    font-size: 1.75rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--color-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    font-weight: 500;
}

.nav-link:hover,
.nav-link.active {
    background: rgba(232,90,124,0.1);
    color: var(--color-accent);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ============================================
   MAIN CONTENT
   ============================================ */
main {
    flex: 1;
}

.section {
    padding: 3rem 0;
}

.section-title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--color-primary);
}

.section-title span {
    color: var(--color-accent);
}

/* ============================================
   HERO
   ============================================ */
.hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: var(--color-white);
    padding: 4rem 0;
    text-align: center;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    max-width: 600px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--color-white);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.hero h1 span {
    color: var(--color-accent);
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: var(--color-white);
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

/* ============================================
   BOTONES
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
}

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

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

.btn-whatsapp {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: #25d366;
    color: var(--color-white);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition);
}

.btn-whatsapp:hover {
    background: #128c7e;
}

/* ============================================
   GRID DE PRODUCTOS
   ============================================ */
.productos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    padding: 1rem 0;
}

.producto-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.producto-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.producto-link {
    flex: 1;
}

.producto-imagen {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--color-gray-200);
}

.producto-imagen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.producto-card:hover .producto-imagen img {
    transform: scale(1.05);
}

.badge-galeria {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: var(--color-gold);
    color: var(--color-primary);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.producto-info {
    padding: 1rem;
}

.producto-categoria {
    font-size: 0.75rem;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.producto-nombre {
    font-size: 1.125rem;
    margin: 0.5rem 0;
    color: var(--color-primary);
}

.producto-meta {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-top: 0.75rem;
}

.producto-tamano {
    font-size: 0.875rem;
    color: var(--color-text-light);
    background: var(--color-gray-200);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
}

.producto-card .btn-whatsapp {
    margin: 0 1rem 1rem;
}

/* ============================================
   FILTROS
   ============================================ */
.filtros {
    background: var(--color-white);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

.filtros-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: end;
}

.filtro-group {
    flex: 1;
    min-width: 200px;
}

.filtro-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-text-light);
}

.filtro-group select,
.filtro-group input {
    width: 100%;
    padding: 0.625rem;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-sm);
    font-size: 1rem;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-primary);
    color: var(--color-white);
    padding: 3rem 0 1rem;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer h3,
.footer h4 {
    margin-bottom: 1rem;
    color: var(--color-gold);
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--color-gold);
}

.footer-social {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    font-size: 1.5rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1rem;
    text-align: center;
    font-size: 0.875rem;
    opacity: 0.8;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-cream);
        flex-direction: column;
        padding: 1rem;
        gap: 0;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        border-bottom: 1px solid var(--color-gray-200);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        padding: 1rem;
        border-bottom: 1px solid var(--color-gray-200);
        color: var(--color-primary);
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .productos-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 1rem;
    }
}