/* ===================================
   CERRAJERÍA VELASCO 24H - ESTILOS PRINCIPALES
   Diseño profesional, responsive y optimizado
   =================================== */

/* ===================================
   RESET Y CONFIGURACIÓN BASE
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colores principales */
    --color-primary: #1a3a5c;
    --color-primary-light: #2563eb;
    --color-secondary: #d4af37;
    --color-accent: #f59e0b;
    --color-dark: #1f2937;
    --color-light: #f3f4f6;
    --color-white: #ffffff;
    --color-gray: #6b7280;
    --color-gray-light: #e5e7eb;
    
    /* Fuentes */
    --font-primary: 'Inter', sans-serif;
    --font-headings: 'Poppins', sans-serif;
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Bordes y sombras */
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --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);
    --shadow-xl: 0 20px 40px rgba(0,0,0,0.2);
    
    /* Transiciones */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-white);
    overflow-x: hidden;
}

/* ===================================
   TIPOGRAFÍA
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headings);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-gray);
}

a {
    text-decoration: none;
    color: var(--color-primary-light);
    transition: var(--transition);
}

a:hover {
    color: var(--color-secondary);
}

/* ===================================
   UTILIDADES
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-wide {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xxl) 0;
}

.section-light {
    background-color: var(--color-light);
}

.text-center {
    text-align: center;
}

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

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

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    text-align: center;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--color-secondary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-color: #b8952d;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--color-secondary);
    color: var(--color-secondary);
}

.btn-outline:hover {
    background-color: var(--color-secondary);
    color: var(--color-white);
}

/* ===================================
   HEADER Y NAVEGACIÓN
   =================================== */
.header {
    background-color: var(--color-white);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xs) 0;
    font-size: 0.9rem;
}

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

.header-contact {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.header-contact a {
    color: var(--color-white);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.header-contact a:hover {
    color: var(--color-secondary);
}

.header-main {
    padding: var(--spacing-sm) 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-headings);
}

.logo span {
    color: var(--color-secondary);
}

.nav {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.nav a {
    color: var(--color-dark);
    font-weight: 500;
    transition: var(--transition);
}

.nav a:hover {
    color: var(--color-secondary);
}

.header-cta {
    display: flex;
    gap: var(--spacing-sm);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-primary);
    cursor: pointer;
}

/* ===================================
   BLOG ESPECÍFICO - PÁGINA PRINCIPAL
   =================================== */
.blog-hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.blog-hero h1 {
    color: var(--color-white);
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.blog-hero p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
}

.blog-layout {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.blog-main {
    min-width: 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.blog-card {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.blog-card-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.blog-card-content {
    padding: var(--spacing-md);
}

.blog-card-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.85rem;
    color: var(--color-gray);
    margin-bottom: var(--spacing-sm);
}

.blog-card-category {
    background-color: var(--color-secondary);
    color: var(--color-white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.blog-card-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.blog-card-title:hover {
    color: var(--color-secondary);
}

.blog-card-excerpt {
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.blog-card-link {
    color: var(--color-primary-light);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.blog-card-link:hover {
    color: var(--color-secondary);
}

/* ===================================
   BLOG SIDEBAR
   =================================== */
.blog-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.sidebar-widget {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
}

.sidebar-widget h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
    border-bottom: 3px solid var(--color-secondary);
    padding-bottom: var(--spacing-sm);
}

.sidebar-articles {
    list-style: none;
}

.sidebar-article-item {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-gray-light);
}

.sidebar-article-item:last-child {
    border-bottom: none;
}

.sidebar-article-link {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
    color: var(--color-dark);
}

.sidebar-article-link:hover {
    color: var(--color-secondary);
}

.sidebar-article-number {
    background-color: var(--color-secondary);
    color: var(--color-white);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.sidebar-article-title {
    font-size: 0.95rem;
    line-height: 1.4;
}

.sidebar-categories {
    list-style: none;
}

.sidebar-category-item {
    margin-bottom: var(--spacing-sm);
}

.sidebar-category-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    background-color: var(--color-light);
    border-radius: var(--border-radius);
    color: var(--color-dark);
    transition: var(--transition);
}

.sidebar-category-link:hover {
    background-color: var(--color-secondary);
    color: var(--color-white);
}

.sidebar-category-count {
    background-color: var(--color-white);
    color: var(--color-primary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.sidebar-cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
    text-align: center;
}

.sidebar-cta h3 {
    color: var(--color-white);
    border-bottom: 3px solid var(--color-secondary);
}

.sidebar-cta p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-md);
}

.sidebar-cta-phones {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.sidebar-cta-phone {
    background-color: var(--color-secondary);
    color: var(--color-white);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    font-weight: 700;
    font-size: 1.1rem;
    transition: var(--transition);
}

.sidebar-cta-phone:hover {
    background-color: #b8952d;
    transform: scale(1.05);
}

/* ===================================
   ARTÍCULO INDIVIDUAL
   =================================== */
.article-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
}

.breadcrumbs {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
    color: rgba(255, 255, 255, 0.8);
}

.breadcrumbs a {
    color: rgba(255, 255, 255, 0.8);
}

.breadcrumbs a:hover {
    color: var(--color-secondary);
}

.breadcrumbs span {
    margin: 0 0.5rem;
}

.article-title {
    font-size: 2.5rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.article-meta {
    display: flex;
    gap: var(--spacing-lg);
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.9);
    flex-wrap: wrap;
}

.article-meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.article-featured-image {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.article-content {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    line-height: 1.8;
}

.article-content h2 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
    font-size: 1.75rem;
}

.article-content h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
    font-size: 1.4rem;
}

.article-content p {
    margin-bottom: var(--spacing-md);
    color: var(--color-dark);
}

.article-content ul,
.article-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
    color: var(--color-dark);
}

.article-content li {
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
}

.article-content strong {
    color: var(--color-primary);
    font-weight: 600;
}

.article-content img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin: var(--spacing-lg) 0;
    box-shadow: var(--shadow-md);
}

.info-box {
    background-color: #e0f2fe;
    border-left: 4px solid var(--color-primary-light);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    border-radius: var(--border-radius);
}

.info-box-title {
    color: var(--color-primary);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.warning-box {
    background-color: #fef3c7;
    border-left: 4px solid var(--color-accent);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    border-radius: var(--border-radius);
}

.warning-box-title {
    color: var(--color-accent);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tip-box {
    background-color: #d1fae5;
    border-left: 4px solid #10b981;
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    border-radius: var(--border-radius);
}

.tip-box-title {
    color: #10b981;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.article-cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    margin-top: var(--spacing-xl);
}

.article-cta h3 {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.article-cta p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
    font-size: 1.1rem;
}

.article-cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

.related-articles {
    margin-top: var(--spacing-xxl);
}

.related-articles h2 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.related-articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.social-share {
    background: var(--color-light);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-top: var(--spacing-xl);
}

.social-share h4 {
    margin-bottom: var(--spacing-md);
}

.social-share-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.social-share-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    color: var(--color-white);
    font-weight: 600;
    transition: var(--transition);
}

.social-share-btn:hover {
    transform: translateY(-2px);
}

.share-facebook {
    background-color: #1877f2;
}

.share-twitter {
    background-color: #1da1f2;
}

.share-linkedin {
    background-color: #0077b5;
}

.share-whatsapp {
    background-color: #25d366;
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xxl) 0 var(--spacing-lg) 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-sm);
}

.footer-section a:hover {
    color: var(--color-secondary);
}

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

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--spacing-md);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
}

/* ===================================
   RESPONSIVE
   =================================== */
@media (max-width: 1024px) {
    .blog-layout {
        grid-template-columns: 1fr;
    }
    
    .blog-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
    }
    
    .nav.active {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .header-cta {
        flex-direction: column;
        width: 100%;
        margin-top: var(--spacing-sm);
    }
    
    .blog-hero h1 {
        font-size: 2rem;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .article-title {
        font-size: 1.75rem;
    }
    
    .article-content {
        padding: var(--spacing-md);
    }
    
    .related-articles-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.95rem;
    }
    
    .blog-hero {
        padding: var(--spacing-lg) 0;
    }
    
    .article-cta-buttons {
        flex-direction: column;
    }
}

/* ===================================
   ANIMACIONES
   =================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* ===================================
   UTILIDADES ADICIONALES
   =================================== */
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.hidden {
    display: none;
}

.visible {
    display: block;
}