/* styles.css */
:root {
    /* Color Palette - The Clinical Curator */
    --primary: #003178;
    --primary-container: #0d47a1;
    --on-primary: #ffffff;
    --secondary: #295ea6;
    --secondary-fixed: #d6e3ff;
    --tertiary: #1e3843;
    --surface: #f9f9f9;
    --surface-container-lowest: #ffffff;
    --surface-container-low: #f3f3f3;
    --on-surface: #1a1c1c;
    --on-surface-variant: #434652;
    --outline: #737783;
    
    /* Typography */
    --font-headline: 'Plus Jakarta Sans', sans-serif;
    --font-body: 'Inter', sans-serif;
}

[data-theme="dark"] {
    --primary: #b0c6ff;
    --primary-container: #00429c;
    --on-primary: #001945;
    --secondary: #a9c7ff;
    --secondary-fixed: #00468c;
    --tertiary: #cbe7f5;
    --surface: #0f1115;
    --surface-container-lowest: #1a1c23;
    --surface-container-low: #22252d;
    --on-surface: #e2e2e9;
    --on-surface-variant: #c3c6d4;
    --outline: #8f929d;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--surface);
    color: var(--on-surface);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-headline);
    line-height: 1.2;
}

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

.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    vertical-align: middle;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 50;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--surface-container-low);
    transition: background-color 0.3s ease;
}

[data-theme="dark"] .navbar {
    background-color: rgba(26, 28, 35, 0.85);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4rem;
    padding: 0 1.5rem;
    max-width: 1536px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
}

.logo-img {
    height: 2rem;
    width: auto;
}

.logo-text {
    font-family: var(--font-headline);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.02em;
    line-height: 1.1;
}

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

.nav-links {
    display: none;
    gap: 2rem;
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
}

.nav-links a {
    color: var(--on-surface-variant);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s ease;
    padding: 0.5rem 0;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--primary);
}

.nav-links a.active {
    border-bottom: 2px solid var(--primary);
}

.nav-actions {
    display: flex;
    gap: 0.5rem;
}

.icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--primary);
    padding: 0.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease;
}

.icon-btn:hover {
    background-color: var(--surface-container-low);
}

/* Layout */
.layout {
    display: flex;
    padding-top: 4rem;
    min-height: 100vh;
    max-width: 1536px;
    margin: 0 auto;
}

/* Sidebar */
.sidebar {
    display: none;
    flex-direction: column;
    width: 16rem;
    position: fixed;
    height: calc(100vh - 4rem);
    background-color: var(--surface);
    border-right: 1px solid var(--surface-container-low);
    padding: 1.5rem 1rem;
}

@media (min-width: 768px) {
    .sidebar {
        display: flex;
    }
}

.sidebar-header {
    margin-bottom: 2rem;
    padding: 0 0.5rem;
}

.sidebar-header h2 {
    font-size: 1.125rem;
    color: var(--primary);
    font-weight: 600;
}

.sidebar-header p {
    font-size: 0.75rem;
    color: var(--outline);
    margin-top: 0.25rem;
}

.side-nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.side-nav a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 0.75rem;
    border-radius: 0.5rem;
    color: var(--on-surface-variant);
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.side-nav a .material-symbols-outlined {
    font-size: 1.25rem;
}

.side-nav a:hover {
    background-color: var(--surface-container-lowest);
    transform: translateX(4px);
}

.side-nav a.active {
    background-color: var(--secondary-fixed);
    color: var(--primary);
    font-weight: 600;
}

[data-theme="dark"] .side-nav a.active {
    background-color: var(--surface-container-low);
}

.subscribe-card {
    margin-top: auto;
    background-color: var(--primary);
    color: var(--on-primary);
    padding: 1.25rem;
    border-radius: 0.75rem;
    text-align: left;
}

.subscribe-card p {
    font-size: 0.75rem;
    margin-bottom: 1rem;
    font-weight: 500;
    opacity: 0.9;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.25rem;
    border-radius: 9999px;
    font-weight: 700;
    font-family: var(--font-body);
    border: none;
    cursor: pointer;
    transition: transform 0.2s ease, background-color 0.2s ease;
}

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

.btn-white {
    background-color: var(--on-primary);
    color: var(--primary);
    width: 100%;
    font-size: 0.75rem;
}

.btn-primary-inverse {
    background-color: var(--on-primary);
    color: var(--primary);
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 1.5rem;
    width: 100%;
}

@media (min-width: 768px) {
    .main-content {
        margin-left: 16rem;
        padding: 2.5rem 3rem;
    }
}

/* Hero Section */
.hero {
    position: relative;
    border-radius: 1.5rem;
    background-color: var(--primary);
    min-height: 400px;
    display: flex;
    align-items: flex-end;
    padding: 2rem;
    overflow: hidden;
    margin-bottom: 4rem;
}

@media (min-width: 1024px) {
    .hero {
        padding: 4rem;
    }
}

.hero img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    mix-blend-mode: overlay;
    opacity: 0.4;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0, 49, 120, 0.9) 0%, rgba(0, 49, 120, 0) 100%);
}

[data-theme="dark"] .hero-overlay {
    background: linear-gradient(to top, rgba(0, 25, 69, 0.9) 0%, rgba(0, 25, 69, 0) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 45rem;
    color: var(--on-primary);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.85rem;
    border-radius: 9999px;
    background-color: var(--secondary-fixed);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
}

[data-theme="dark"] .badge {
    background-color: var(--primary-container);
    color: var(--on-primary);
}

.badge .material-symbols-outlined {
    font-size: 1rem;
}

.hero h1 {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

@media (min-width: 1024px) {
    .hero h1 {
        font-size: 3.5rem;
    }
}

.hero p {
    font-size: 1.125rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    max-width: 38rem;
}

/* Editorial Grid */
.editorial-grid-section {
    margin-bottom: 5rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 2rem;
}

.section-header h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--on-surface);
    margin-bottom: 0.25rem;
}

.section-header p {
    color: var(--outline);
    font-size: 1rem;
}

.view-all {
    color: var(--secondary);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transition: color 0.2s ease;
}

.view-all:hover {
    color: var(--primary);
}

.bento-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 1024px) {
    .bento-grid {
        grid-template-columns: repeat(12, 1fr);
    }
}

.featured-article {
    background-color: var(--surface-container-lowest);
    border-radius: 1rem;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.featured-article:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

@media (min-width: 1024px) {
    .featured-article {
        grid-column: span 8;
    }
}

.featured-article .img-wrapper {
    overflow: hidden;
    aspect-ratio: 16 / 9;
}

.featured-article img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.featured-article:hover img {
    transform: scale(1.03);
}

.featured-article .content {
    padding: 2rem;
}

.category {
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    display: block;
}

.featured-article h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--on-surface);
}

.featured-article p {
    color: var(--on-surface-variant);
    font-size: 1rem;
}

.side-articles {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

@media (min-width: 1024px) {
    .side-articles {
        grid-column: span 4;
    }
}

.side-card {
    background-color: var(--surface-container-lowest);
    padding: 1.5rem;
    border-radius: 1rem;
    border-left: 4px solid;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.side-card:hover {
    transform: translateX(4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.border-secondary { border-color: var(--secondary); }
.border-primary { border-color: var(--primary); }
.border-tertiary { border-color: var(--tertiary); }

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

.side-card h4 {
    font-size: 1.125rem;
    font-weight: 700;
    margin: 0.5rem 0;
    color: var(--on-surface);
}

.side-card p {
    font-size: 0.875rem;
    color: var(--on-surface-variant);
    line-height: 1.5;
}
/* Hero con imagen de fondo desde JS */
.hero {
    background-size: cover;
    background-position: center;
    background-color: var(--primary);
}

/* Meta en tarjetas */
.meta {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    font-size: 0.8rem;
    color: var(--outline);
}

/* ── Artículo individual ────────────────────────────────── */

.articulo-container {
    max-width: 780px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
}

.articulo-loading {
    text-align: center;
    padding: 4rem;
    color: var(--outline);
}

.articulo-loading .material-symbols-outlined {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

.articulo-header {
    margin-bottom: 2rem;
}

.articulo-header h1 {
    font-size: 2.4rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin: 0.75rem 0;
    color: var(--on-surface);
}

@media (min-width: 768px) {
    .articulo-header h1 { font-size: 3rem; }
}

.articulo-subtitulo {
    font-size: 1.25rem;
    color: var(--on-surface-variant);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.articulo-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--surface-container-low);
}

.autor {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.autor-avatar {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    object-fit: cover;
}

.autor-avatar-placeholder {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background-color: var(--secondary-fixed);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.autor strong {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--on-surface);
}

.autor span {
    font-size: 0.75rem;
    color: var(--outline);
}

.articulo-fecha {
    font-size: 0.85rem;
    color: var(--outline);
    margin-left: auto;
}

.articulo-portada {
    margin: 2rem 0;
    border-radius: 1rem;
    overflow: hidden;
}

.articulo-portada img {
    width: 100%;
    height: auto;
    max-height: 480px;
    object-fit: cover;
}

/* ── Bloques de contenido ───────────────────────────────── */

.articulo-cuerpo {
    margin-top: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.bloque-texto {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--on-surface);
}

.bloque-cita {
    border-left: 4px solid var(--primary);
    margin: 0;
    padding: 1.25rem 1.75rem;
    background-color: var(--surface-container-low);
    border-radius: 0 0.75rem 0.75rem 0;
}

.bloque-cita p {
    font-size: 1.2rem;
    font-style: italic;
    color: var(--on-surface);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.bloque-cita cite {
    font-size: 0.85rem;
    color: var(--outline);
    font-style: normal;
}

.bloque-imagen {
    margin: 0;
}

.bloque-imagen img {
    width: 100%;
    border-radius: 0.75rem;
}

.bloque-imagen figcaption {
    font-size: 0.8rem;
    color: var(--outline);
    text-align: center;
    margin-top: 0.5rem;
}

.bloque-video {
    margin: 0;
}

.bloque-video iframe,
.bloque-video video {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: 0.75rem;
    border: none;
    background: #000;
}

.bloque-audio {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background-color: var(--surface-container-low);
    border-radius: 0.75rem;
    flex-wrap: wrap;
}

.bloque-audio .material-symbols-outlined {
    font-size: 2rem;
    color: var(--primary);
}

.bloque-audio audio {
    flex: 1;
    min-width: 200px;
}

.bloque-label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--on-surface);
    margin-bottom: 0.75rem;
}

.duracion {
    font-size: 0.75rem;
    color: var(--outline);
}

.bloque-tabla {
    overflow: hidden;
}

.tabla-scroll {
    overflow-x: auto;
    border-radius: 0.75rem;
    border: 1px solid var(--surface-container-low);
}

.bloque-tabla table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.bloque-tabla th {
    background-color: var(--primary);
    color: var(--on-primary);
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
}

.bloque-tabla td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--surface-container-low);
    color: var(--on-surface);
}

.bloque-tabla tr:last-child td { border-bottom: none; }

.bloque-tabla tr:nth-child(even) td {
    background-color: var(--surface-container-low);
}

.tabla-fuente {
    font-size: 0.75rem;
    color: var(--outline);
    margin-top: 0.5rem;
}

.bloque-grafico {
    padding: 2rem;
    background-color: var(--surface-container-low);
    border-radius: 0.75rem;
    text-align: center;
}

.grafico-canvas {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 2rem;
    color: var(--outline);
}

.grafico-canvas .material-symbols-outlined {
    font-size: 3rem;
}

.bloque-documento {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background-color: var(--surface-container-low);
    border-radius: 0.75rem;
    flex-wrap: wrap;
}

.bloque-documento > .material-symbols-outlined {
    font-size: 2rem;
    color: var(--primary);
}

.bloque-documento > div { flex: 1; }

.btn-doc {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    background-color: var(--primary);
    color: var(--on-primary);
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: opacity 0.2s;
}

.btn-doc:hover { opacity: 0.85; }

/* Tags */
.articulo-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--surface-container-low);
}

.tag {
    padding: 0.3rem 0.75rem;
    background-color: var(--surface-container-low);
    border-radius: 9999px;
    font-size: 0.8rem;
    color: var(--on-surface-variant);
}

.error {
    color: #c0392b;
    padding: 2rem;
    text-align: center;
}