/* ============================================
   MAGOLO.NET - ARTICLE SYSTEM STYLESHEET
   Sistema unificado para todos los artículos
   ============================================ */

/* --- CSS Variables (heredadas del index) --- */
:root {
    /* Colors */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-bg-dark: #343a40;
    --color-text-primary: #212529;
    --color-text-secondary: #495057;
    --color-text-muted: #6c757d;
    --color-accent: #007bff;
    --color-accent-hover: #0056b3;
    --color-success: #28a745;
    --color-warning: #ffc107;
    --color-danger: #dc3545;
    --color-border: #e9ecef;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    
    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-serif: "Georgia", "Times New Roman", Times, serif;
    --font-mono: "JetBrains Mono", "Fira Code", "Consolas", "Courier New", monospace;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

/* --- Reset y Base --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-sans);
    line-height: 1.7;
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    margin: 0;
    padding: 0;
}

/* Elimina el subrayado de todos los enlaces por defecto */
a {
    text-decoration: none;
}

/* --- Article Navigation Header --- */
.article-nav-header {
    background: linear-gradient(135deg, var(--color-bg-dark) 0%, #495057 100%);
    padding: 6px var(--spacing-md);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 2px solid var(--color-accent);
}

.article-nav-content {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: #ffffff;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.back-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateX(-4px);
    border-color: var(--color-accent);
}

/* === NAVEGACIÓN ENTRE ARTÍCULOS (FLECHAS) === */

/* Contenedor de flechas de navegación */
.article-arrows {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* Estilos base de las flechas */
.arrow-btn {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: linear-gradient(135deg, rgba(0, 123, 255, 0.15), rgba(0, 123, 255, 0.25));
    border: 2px solid rgba(0, 123, 255, 0.4);
    border-radius: var(--radius-md);
    color: #ffffff;
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

/* Efecto de brillo animado */
.arrow-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.arrow-btn:hover::before {
    left: 100%;
}

/* Hover effects */
.arrow-btn:hover {
    background: linear-gradient(135deg, rgba(0, 123, 255, 0.3), rgba(0, 123, 255, 0.4));
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 123, 255, 0.3);
}

/* Flecha anterior - desliza hacia la izquierda */
.arrow-prev:hover {
    transform: translateY(-2px) translateX(-4px);
}

/* Flecha siguiente - desliza hacia la derecha */
.arrow-next:hover {
    transform: translateY(-2px) translateX(4px);
}

/* Iconos de flechas SVG */
.arrow-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.arrow-prev:hover .arrow-icon {
    transform: translateX(-3px);
}

.arrow-next:hover .arrow-icon {
    transform: translateX(3px);
}

/* Texto de la flecha */
.arrow-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
}

.arrow-next .arrow-text {
    align-items: flex-end;
}

.arrow-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.8;
    font-weight: 500;
}

.arrow-title {
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

/* Estado deshabilitado - IMPORTANTE: debe ir después de los hover */
.arrow-btn:disabled,
.arrow-btn.disabled {
    opacity: 0.3 !important;
    cursor: not-allowed !important;
    pointer-events: none !important;
    background: rgba(255, 255, 255, 0.05) !important;
    border-color: rgba(255, 255, 255, 0.1) !important;
    transform: none !important;
}

.arrow-btn:disabled::before,
.arrow-btn.disabled::before {
    display: none;
}

.arrow-btn:disabled:hover,
.arrow-btn.disabled:hover {
    transform: none !important;
    box-shadow: none !important;
}

/* --- Main Article Container --- */
.main-article {
    max-width: 900px;
    margin: var(--spacing-xl) auto;
    background: var(--color-bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* --- Article Header --- */
.main-article > header {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--color-border);
}

.main-article > header h1 {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: var(--color-text-primary);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.article-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

.reading-time {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.article-tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.article-tag {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 12px;
    background: var(--color-bg-secondary);
    color: var(--color-accent);
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* --- Table of Contents --- */
.toc {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
    border-left: 4px solid var(--color-accent);
}

.toc h2 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.toc ul {
    list-style: none;
    padding-left: 0;
}

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

.toc a {
    color: var(--color-text-secondary);
    font-weight: 500;
    transition: all 0.2s ease;
    display: inline-block;
    padding: 4px 0;
}

.toc a:hover {
    color: var(--color-accent);
    transform: translateX(4px);
}

/* --- Article Content --- */
article {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
}

article section {
    margin-bottom: var(--spacing-xl);
}

article h2 {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--color-text-primary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-border);
}

article h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--color-text-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

article h4 {
    font-size: 1.25rem;
    color: var(--color-text-primary);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

article h6 {
    font-size: 0.85rem;
    color: var(--color-accent);
    font-style: italic;
    text-align: center;
    margin-top: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
    font-weight: 400;
}

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

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

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

article li {
    margin-bottom: var(--spacing-xs);
}

article blockquote {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-bg-secondary);
    border-left: 4px solid var(--color-accent);
    border-radius: var(--radius-sm);
    font-style: italic;
    color: var(--color-text-secondary);
}

/* --- Code Blocks --- */
article code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: #2d2d2d;
    color: #f8f8f2;
    padding: 2px 6px;
    border-radius: 3px;
}

article pre {
    margin: var(--spacing-lg) 0;
    border-radius: var(--radius-md);
    overflow-x: auto;
    box-shadow: var(--shadow-md);
}

article pre code {
    display: block;
    padding: var(--spacing-md);
    background: #2d2d2d;
    line-height: 1.6;
    font-size: 0.95rem;
}

article pre code.language-bash {
    background: #222; 
    color: #eee;
}

/* --- Images --- */
.image-container {
    margin: var(--spacing-xl) 0;
    text-align: center;
}

.image-container img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease;
}

.image-container img:hover {
    transform: scale(1.02);
}

/* --- Info Boxes --- */
.info-box {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid;
}

.warning-box {
    background: #fff3cd;
    border-left-color: var(--color-warning);
}

.warning-box h2,
.warning-box h3 {
    color: #856404;
}

.exercise-box {
    background: #d1ecf1;
    border-left-color: #17a2b8;
}

.exercise-box h2,
.exercise-box h3 {
    color: #0c5460;
}

.info-box h2 {
    margin-top: 0;
}

/* ============================================
   FOOTER (idéntico al index)
   ============================================ */

.site-footer {
    margin-top: var(--spacing-xl);
    background: var(--color-bg-primary);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.04);
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer-column h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-family: var(--font-sans);
}

/* Columna 1: Navegación */
.footer-links {
    list-style: none;
    padding: 0;
}

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

.footer-links a {
    color: var(--color-text-secondary);
    font-size: 1rem;
    transition: all 0.2s ease;
    display: inline-block;
}

.footer-links a:hover {
    color: var(--color-accent);
    transform: translateX(4px);
}

/* Columna 2: Conectar */
.social-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.social-links a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-accent);
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.social-links a:hover {
    color: var(--color-accent);
    transform: translateX(4px);
}

.social-links svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

/* Columna 3: La Misión */
.footer-mission p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.footer-mission .mission-tech {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.footer-mission a {
    color: var(--color-accent);
    font-weight: 600;
}

/* Tech Radar Mini */
.tech-radar {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-accent);
}

.radar-item {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
    line-height: 1.5;
}

.radar-item:last-child {
    margin-bottom: 0;
}

/* Footer Bottom */
.footer-bottom {
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
}

.footer-bottom-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.copyright {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.tech-stack {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

.tech-stack a {
    color: var(--color-accent);
    font-weight: 600;
    margin-left: var(--spacing-sm);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablets */
@media (max-width: 992px) {
    .main-article {
        margin: var(--spacing-lg) var(--spacing-md);
        padding: var(--spacing-lg);
    }
    
    .main-article > header h1 {
        font-size: 2rem;
    }
    
    article h2 {
        font-size: 1.75rem;
    }
    
    article h3 {
        font-size: 1.35rem;
    }
    
    .footer-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-mission {
        grid-column: 1 / -1;
    }

    /* Flechas en tablets */
    .arrow-title {
        max-width: 150px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 32px;
        --spacing-lg: 24px;
    }
    
    .article-nav-header {
        padding: var(--spacing-sm);
    }

    .article-nav-content {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .back-link {
        font-size: 0.9rem;
        padding: var(--spacing-sm);
        width: 100%;
        justify-content: center;
    }
    
    /* Flechas en móvil */
    .article-arrows {
        width: 100%;
        justify-content: space-between;
    }

    .arrow-btn {
        padding: 10px 16px;
        font-size: 0.85rem;
        flex: 1;
        justify-content: center;
    }

    .arrow-text {
        display: none;
    }

    .arrow-icon {
        width: 24px;
        height: 24px;
    }

    /* Contenido principal */
    .main-article {
        margin: var(--spacing-md);
        padding: var(--spacing-md);
        border-radius: var(--radius-md);
    }
    
    .main-article > header h1 {
        font-size: 1.75rem;
    }
    
    article {
        font-size: 1rem;
    }
    
    article h2 {
        font-size: 1.5rem;
    }
    
    article h3 {
        font-size: 1.25rem;
    }
    
    .toc {
        padding: var(--spacing-md);
    }
    
    article pre code {
        font-size: 0.85rem;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
}

/* Print Styles */
@media print {
    .article-nav-header,
    .site-footer,
    .toc {
        display: none;
    }
    
    body {
        background: white;
    }
    
    .main-article {
        box-shadow: none;
        margin: 0;
        padding: 0;
    }
    
    article h2,
    article h3 {
        page-break-after: avoid;
    }
    
    article pre {
        page-break-inside: avoid;
    }
}