/* ============================================
   MOISÉS MANSILLA - SFBT PRACTICE
   CSS Stylesheet
   ============================================ */

/* Variables CSS - Tema Claro (default) */
:root {
    /* Colores */
    --color-bg: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-bg-tertiary: #f0f0f0;
    --color-text: #1a1a1a;
    --color-text-secondary: #4a4a4a;
    --color-text-muted: #888888;
    --color-border: #e5e5e5;
    --color-accent: #2c5f2d;
    --color-accent-light: #4a7c4b;
    --color-accent-hover: #1e401f;
    
    /* Tipografía */
    --font-serif: 'Crimson Pro', Georgia, 'Times New Roman', serif;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Tamaños de fuente */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 2rem;
    --text-4xl: 2.75rem;
    
    /* Espaciado */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-24: 6rem;
    
    /* Layout */
    --container-max: 720px;
    --header-height: 64px;
    
    /* Transiciones */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
}

/* Tema Oscuro */
[data-theme="dark"] {
    --color-bg: #0a0a0a;
    --color-bg-secondary: #141414;
    --color-bg-tertiary: #1a1a1a;
    --color-text: #f5f5f5;
    --color-text-secondary: #b0b0b0;
    --color-text-muted: #666666;
    --color-border: #2a2a2a;
    --color-accent: #6b9b6c;
    --color-accent-light: #8ab98b;
    --color-accent-hover: #8ab98b;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.5);
}

/* Reset y base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-bg);
    transition: color var(--transition-base), background-color var(--transition-base);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    
    /* Protección anti-copia */
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

/* Permitir selección en inputs */
input, textarea {
    user-select: text;
    -webkit-user-select: text;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
    height: var(--header-height);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    background-color: var(--color-bg);
    z-index: 100;
    transition: background-color var(--transition-base), border-color var(--transition-base);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.site-title {
    font-family: var(--font-serif);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
    letter-spacing: -0.01em;
}

.site-title:hover {
    opacity: 0.7;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.nav-link {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-text);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--color-accent);
}

/* Toggle de tema */
.theme-toggle {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--color-text);
    transition: background-color var(--transition-fast);
    margin-left: var(--space-2);
}

.theme-toggle:hover {
    background-color: var(--color-bg-secondary);
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
}

.icon-sun {
    display: none;
}

.icon-moon {
    display: block;
}

[data-theme="dark"] .icon-sun {
    display: block;
}

[data-theme="dark"] .icon-moon {
    display: none;
}

/* Menú móvil */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.mobile-menu-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--color-text);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* ============================================
   BOTONES
   ============================================ */
.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-sm);
    font-weight: 500;
    text-decoration: none;
    border-radius: 6px;
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--color-bg-secondary);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background-color: var(--color-bg-tertiary);
}

/* ============================================
   MAIN
   ============================================ */
.site-main {
    flex: 1;
    padding: var(--space-16) 0;
}

/* Hero */
.hero {
    text-align: center;
    margin-bottom: var(--space-16);
}

.hero h1 {
    font-family: var(--font-serif);
    font-size: var(--text-4xl);
    font-weight: 600;
    margin-bottom: var(--space-4);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    font-weight: 300;
}

/* ============================================
   LISTA DE POSTS
   ============================================ */
.posts-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.post-card {
    padding: var(--space-6) 0;
    border-bottom: 1px solid var(--color-border);
    transition: border-color var(--transition-base);
}

.post-card:first-child {
    padding-top: 0;
}

.post-card:last-child {
    border-bottom: none;
}

.post-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.post-card-link:hover .post-card-title {
    color: var(--color-accent);
}

.post-card-title {
    font-family: var(--font-serif);
    font-size: var(--text-2xl);
    font-weight: 600;
    margin-bottom: var(--space-3);
    line-height: 1.3;
    transition: color var(--transition-fast);
}

.post-card-excerpt {
    color: var(--color-text-secondary);
    font-size: var(--text-base);
    line-height: 1.6;
    margin-bottom: var(--space-3);
}

.post-card-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.post-card-date::after {
    content: "·";
    margin-left: var(--space-4);
}

/* Loading */
.loading {
    text-align: center;
    color: var(--color-text-muted);
    padding: var(--space-12) 0;
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: var(--space-16) 0;
    color: var(--color-text-secondary);
}

.empty-state-icon {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-4);
    opacity: 0.5;
}

/* ============================================
   POST INDIVIDUAL
   ============================================ */
.post-article {
    max-width: var(--container-max);
    margin: 0 auto;
}

.post-header {
    margin-bottom: var(--space-8);
    text-align: center;
}

.post-title {
    font-family: var(--font-serif);
    font-size: var(--text-3xl);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-4);
    letter-spacing: -0.02em;
}

.post-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

/* Tabla de contenidos */
.post-toc-wrapper {
    margin-bottom: var(--space-8);
}

.post-toc {
    background-color: var(--color-bg-secondary);
    border-radius: 8px;
    padding: var(--space-4);
    border: 1px solid var(--color-border);
}

.post-toc summary {
    font-size: var(--text-sm);
    font-weight: 500;
    cursor: pointer;
    padding: var(--space-2) 0;
    color: var(--color-text);
}

.post-toc summary:hover {
    opacity: 0.8;
}

.post-toc nav {
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border);
}

.post-toc ul {
    list-style: none;
    font-size: var(--text-sm);
}

.post-toc li {
    margin: var(--space-2) 0;
}

.post-toc a {
    color: var(--color-text-secondary);
    text-decoration: none;
    display: block;
    padding: var(--space-1) 0;
    transition: color var(--transition-fast);
}

.post-toc a:hover {
    color: var(--color-text);
}

.post-toc .toc-h2 {
    padding-left: 0;
}

.post-toc .toc-h3 {
    padding-left: var(--space-4);
}

/* Contenido del post */
.post-content {
    font-size: var(--text-lg);
    line-height: 1.8;
}

.post-content > * + * {
    margin-top: var(--space-6);
}

.post-content h1,
.post-content h2,
.post-content h3,
.post-content h4,
.post-content h5,
.post-content h6 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.3;
    margin-top: var(--space-12);
    margin-bottom: var(--space-4);
    scroll-margin-top: calc(var(--header-height) + var(--space-4));
}

.post-content h1 {
    font-size: var(--text-3xl);
}

.post-content h2 {
    font-size: var(--text-2xl);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--space-3);
}

.post-content h3 {
    font-size: var(--text-xl);
}

.post-content h4 {
    font-size: var(--text-lg);
}

.post-content p {
    margin-bottom: var(--space-4);
}

.post-content a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 0.2em;
    transition: opacity var(--transition-fast);
}

.post-content a:hover {
    opacity: 0.7;
}

.post-content strong,
.post-content b {
    font-weight: 600;
}

.post-content em,
.post-content i {
    font-style: italic;
}

.post-content code {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    font-size: 0.85em;
    background-color: var(--color-bg-secondary);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    color: var(--color-text);
}

.post-content pre {
    background-color: var(--color-bg-secondary);
    padding: var(--space-4);
    border-radius: 8px;
    overflow-x: auto;
    margin: var(--space-6) 0;
    border: 1px solid var(--color-border);
}

.post-content pre code {
    background: none;
    padding: 0;
    font-size: var(--text-sm);
    line-height: 1.6;
}

.post-content blockquote {
    border-left: 3px solid var(--color-accent);
    padding-left: var(--space-6);
    margin: var(--space-6) 0;
    color: var(--color-text-secondary);
    font-style: italic;
}

.post-content ul,
.post-content ol {
    margin: var(--space-4) 0;
    padding-left: var(--space-6);
}

.post-content li {
    margin: var(--space-2) 0;
}

.post-content ul li {
    list-style-type: disc;
}

.post-content ol li {
    list-style-type: decimal;
}

.post-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: var(--space-6) 0;
}

.post-content hr {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--space-12) 0;
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-6) 0;
    font-size: var(--text-sm);
}

.post-content th,
.post-content td {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.post-content th {
    font-weight: 600;
    background-color: var(--color-bg-secondary);
}

/* Post footer */
.post-footer {
    margin-top: var(--space-16);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-border);
}

.post-nav {
    margin-bottom: var(--space-8);
}

.back-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

.back-link:hover {
    color: var(--color-text);
}

.post-cta {
    text-align: center;
    padding: var(--space-8);
    background-color: var(--color-bg-secondary);
    border-radius: 8px;
}

.post-cta p {
    margin-bottom: var(--space-4);
    color: var(--color-text-secondary);
}

/* ============================================
   PÁGINA SOBRE MÍ
   ============================================ */
.about-page,
.contact-page {
    max-width: var(--container-max);
    margin: 0 auto;
}

.about-header,
.contact-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.about-header h1,
.contact-header h1 {
    font-family: var(--font-serif);
    font-size: var(--text-3xl);
    font-weight: 600;
    margin-bottom: var(--space-3);
}

.about-subtitle,
.contact-subtitle {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    font-weight: 300;
}

.about-section,
.contact-intro {
    margin-bottom: var(--space-12);
}

.about-section h2,
.contact-methods h2,
.contact-info h2,
.contact-faq h2 {
    font-family: var(--font-serif);
    font-size: var(--text-2xl);
    font-weight: 600;
    margin-bottom: var(--space-6);
    color: var(--color-text);
}

.about-section p {
    margin-bottom: var(--space-4);
    color: var(--color-text-secondary);
}

.about-section ul {
    margin: var(--space-4) 0;
    padding-left: var(--space-6);
}

.about-section li {
    margin: var(--space-3) 0;
    color: var(--color-text-secondary);
}

.about-section blockquote {
    border-left: 3px solid var(--color-accent);
    padding-left: var(--space-6);
    margin: var(--space-8) 0;
    color: var(--color-text-secondary);
    font-style: italic;
    font-size: var(--text-lg);
}

/* Approach Grid */
.approach-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    margin-top: var(--space-6);
}

.approach-card {
    background-color: var(--color-bg-secondary);
    padding: var(--space-6);
    border-radius: 8px;
    border: 1px solid var(--color-border);
}

.approach-card h3 {
    font-family: var(--font-serif);
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-3);
    color: var(--color-accent);
}

.approach-card p {
    font-size: var(--text-sm);
    margin-bottom: 0;
}

/* About CTA */
.about-cta {
    text-align: center;
    padding: var(--space-12);
    background-color: var(--color-bg-secondary);
    border-radius: 8px;
    margin-top: var(--space-12);
}

.about-cta p {
    font-size: var(--text-lg);
    margin-bottom: var(--space-6);
    color: var(--color-text);
}

/* ============================================
   PÁGINA DE CONTACTO
   ============================================ */
.contact-intro {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: var(--text-lg);
    max-width: 600px;
    margin: 0 auto var(--space-12);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

.contact-card {
    background-color: var(--color-bg-secondary);
    padding: var(--space-8);
    border-radius: 12px;
    border: 1px solid var(--color-border);
    text-align: center;
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-base);
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.contact-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-4);
    color: var(--color-accent);
}

.contact-icon svg {
    width: 100%;
    height: 100%;
}

.contact-card h3 {
    font-family: var(--font-serif);
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.contact-value {
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--color-accent);
    margin-bottom: var(--space-2);
}

.contact-hint {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
    margin-bottom: var(--space-12);
}

.info-item h3 {
    font-family: var(--font-serif);
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-3);
    color: var(--color-text);
}

.info-item p {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* FAQ */
.faq-item {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    margin-bottom: var(--space-3);
    overflow: hidden;
}

.faq-item summary {
    padding: var(--space-4) var(--space-6);
    font-weight: 500;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.faq-item summary:hover {
    background-color: var(--color-bg-tertiary);
}

.faq-item p {
    padding: 0 var(--space-6) var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    margin: 0;
}

/* Contact CTA */
.contact-cta {
    text-align: center;
    padding: var(--space-12);
    background-color: var(--color-bg-secondary);
    border-radius: 8px;
    margin-top: var(--space-12);
}

.contact-cta blockquote {
    border-left: 3px solid var(--color-accent);
    padding-left: var(--space-6);
    margin: 0 auto var(--space-8);
    color: var(--color-text-secondary);
    font-style: italic;
    font-size: var(--text-lg);
    max-width: 500px;
    text-align: left;
}

.contact-cta cite {
    display: block;
    margin-top: var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    font-style: normal;
}

.cta-text {
    font-size: var(--text-lg);
    margin-bottom: var(--space-6);
    color: var(--color-text);
}

.cta-buttons {
    display: flex;
    gap: var(--space-3);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
    border-top: 1px solid var(--color-border);
    padding: var(--space-8) 0;
    margin-top: auto;
}

.site-footer p {
    text-align: center;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 640px) {
    :root {
        --text-3xl: 1.75rem;
        --text-4xl: 2rem;
    }
    
    .site-main {
        padding: var(--space-8) 0;
    }
    
    .hero {
        margin-bottom: var(--space-8);
    }
    
    .post-title {
        font-size: var(--text-2xl);
    }
    
    .post-content {
        font-size: var(--text-base);
    }
    
    .post-content h2 {
        font-size: var(--text-xl);
    }
    
    .container {
        padding: 0 var(--space-4);
    }
    
    /* Mobile Navigation */
    .site-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        flex-direction: column;
        padding: var(--space-4);
        gap: var(--space-4);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition-base);
    }
    
    .site-nav.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }
    
    .nav-link.active::after {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .theme-toggle {
        margin-left: 0;
    }
    
    /* Approach Grid */
    .approach-grid {
        grid-template-columns: 1fr;
    }
    
    /* Contact Grid */
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    /* Info Grid */
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    /* CTA Buttons */
    .cta-buttons {
        flex-direction: column;
    }
    
    .cta-buttons .btn-primary,
    .cta-buttons .btn-secondary {
        width: 100%;
        justify-content: center;
    }
}

/* ============================================
   UTILIDADES
   ============================================ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Animación de fade in */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease forwards;
}