/**
 * Tarjetas Paraguay — /aprende — CSS completo v2
 *
 * Diseño para:
 *   - /aprende             (index con hero + categorías + artículos)
 *   - /aprende/{cat}       (categoría)
 *   - /aprende/{cat}/{art} (artículo individual)
 *   - /aprende/buscar      (búsqueda)
 *   - /aprende/tag/{tag}   (tag)
 */

:root {
    --tc-primary: #1565c0;
    --tc-primary-dark: #0d47a1;
    --tc-primary-light: #1e88e5;
    --tc-accent: #f59e0b;
    --tc-text: #1a202c;
    --tc-text-muted: #64748b;
    --tc-border: #e2e8f0;
    --tc-bg-soft: #f8fafc;
}

/* ═══════════════════════════════════════════════════════════════════════
   HERO — /aprende index
   ═══════════════════════════════════════════════════════════════════════ */
.tc-aprende-hero {
    background: linear-gradient(135deg, #1565c0 0%, #0d47a1 100%);
    color: white;
    padding: 60px 0 70px;
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
}
.tc-aprende-hero::before {
    content: '';
    position: absolute;
    top: -50px; right: -50px;
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(255,255,255,.08) 0%, transparent 70%);
    border-radius: 50%;
}
.tc-aprende-hero::after {
    content: '';
    position: absolute;
    bottom: -100px; left: -100px;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(245,158,11,.1) 0%, transparent 70%);
    border-radius: 50%;
}
.tc-aprende-hero .container { position: relative; z-index: 1; }
.tc-aprende-hero__title {
    font-family: "Oswald", -apple-system, sans-serif;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    margin: 0 0 12px;
    line-height: 1.1;
    letter-spacing: -.5px;
}
.tc-aprende-hero__subtitle {
    font-size: 1.05rem;
    opacity: .92;
    max-width: 680px;
    margin: 0 0 32px;
    line-height: 1.6;
}
.tc-aprende-hero__search {
    display: flex;
    align-items: center;
    background: white;
    border-radius: 50px;
    padding: 8px 8px 8px 22px;
    box-shadow: 0 8px 30px rgba(0,0,0,.15);
    max-width: 600px;
    gap: 12px;
}
.tc-aprende-hero__search i.bi-search { color: var(--tc-text-muted); font-size: 1.1rem; }
.tc-aprende-hero__search input {
    flex: 1; border: 0; outline: 0; background: transparent;
    color: var(--tc-text); font-size: 1rem; padding: 8px 0; min-width: 0;
}
.tc-aprende-hero__search input::placeholder { color: var(--tc-text-muted); }
.tc-aprende-hero__search button {
    background: var(--tc-accent); color: white; border: 0;
    padding: 10px 24px; border-radius: 50px; font-weight: 600; cursor: pointer;
    transition: background .15s;
}
.tc-aprende-hero__search button:hover { background: #d97706; }

/* ═══════════════════════════════════════════════════════════════════════
   GRID DE CATEGORÍAS
   ═══════════════════════════════════════════════════════════════════════ */
.tc-category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}
.tc-category-card {
    background: white;
    border: 2px solid var(--tc-border);
    border-radius: 12px;
    padding: 24px 22px;
    text-decoration: none;
    color: var(--tc-text);
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
    overflow: hidden;
}
.tc-category-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: var(--cat-color, var(--tc-primary));
}
.tc-category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0,0,0,.08);
    border-color: var(--cat-color, var(--tc-primary));
    text-decoration: none;
    color: var(--tc-text);
}
.tc-category-card__icon {
    font-size: 1.8rem;
    color: var(--cat-color, var(--tc-primary));
    background: color-mix(in srgb, var(--cat-color, var(--tc-primary)) 12%, white);
    width: 52px; height: 52px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 4px;
}
.tc-category-card__title {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 4px 0 6px;
    color: var(--tc-text);
}
.tc-category-card__description {
    font-size: .9rem;
    color: var(--tc-text-muted);
    line-height: 1.5;
    margin: 0;
    flex: 1;
}
.tc-category-card__count {
    display: inline-block;
    font-size: .8rem;
    color: var(--cat-color, var(--tc-primary));
    font-weight: 600;
    background: color-mix(in srgb, var(--cat-color, var(--tc-primary)) 10%, white);
    padding: 4px 10px;
    border-radius: 12px;
    margin-top: 10px;
    align-self: flex-start;
}

/* ═══════════════════════════════════════════════════════════════════════
   GRID Y CARDS DE ARTÍCULOS
   ═══════════════════════════════════════════════════════════════════════ */
.tc-article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}
.tc-article-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,.04);
    border: 1px solid var(--tc-border);
    transition: transform .18s ease, box-shadow .18s ease;
    display: flex;
    flex-direction: column;
}
.tc-article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0,0,0,.1);
}
.tc-article-card__cover-link {
    display: block;
    text-decoration: none;
}
.tc-article-card__cover {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    display: block;
}
.tc-article-card__cover--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2.5rem;
}
.tc-article-card__body {
    padding: 18px 20px 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.tc-article-card__category {
    display: inline-block;
    color: white;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .5px;
    text-decoration: none;
    margin-bottom: 8px;
    align-self: flex-start;
}
.tc-article-card__category:hover { opacity: .9; color: white; }
.tc-article-card__title {
    font-size: 1.08rem;
    font-weight: 700;
    margin: 0 0 8px;
    line-height: 1.3;
}
.tc-article-card__title a {
    color: var(--tc-text);
    text-decoration: none;
}
.tc-article-card__title a:hover { color: var(--tc-primary); }
.tc-article-card__excerpt {
    font-size: .9rem;
    color: var(--tc-text-muted);
    line-height: 1.5;
    margin: 0;
    flex: 1;
}
.tc-article-card__meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: .8rem;
    color: var(--tc-text-muted);
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--tc-border);
}
.tc-article-card__meta i { color: var(--tc-primary); margin-right: 3px; }

/* ═══════════════════════════════════════════════════════════════════════
   ARTÍCULO INDIVIDUAL (show.php) — COMPLETO
   ═══════════════════════════════════════════════════════════════════════ */
.tc-article {
    max-width: 760px;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    padding: 40px 50px;
    box-shadow: 0 4px 20px rgba(0,0,0,.05);
}
.tc-article__header {
    margin-bottom: 30px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--tc-border);
}
.tc-article__category {
    display: inline-block;
    color: white !important;
    padding: 6px 14px;
    border-radius: 16px;
    font-size: .78rem;
    font-weight: 600;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: .5px;
    margin-bottom: 16px;
}
.tc-article__category:hover { opacity: .9; color: white !important; text-decoration: none; }
.tc-article__title {
    font-family: "Oswald", -apple-system, sans-serif;
    font-size: clamp(1.7rem, 3.5vw, 2.3rem);
    font-weight: 700;
    margin: 0 0 16px;
    line-height: 1.2;
    color: var(--tc-text);
}
.tc-article__excerpt {
    font-size: 1.1rem;
    color: var(--tc-text-muted);
    line-height: 1.6;
    margin: 0 0 16px;
    font-weight: 400;
}
.tc-article__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: .85rem;
    color: var(--tc-text-muted);
    margin-top: 16px;
}
.tc-article__meta i { color: var(--tc-primary); margin-right: 4px; }
.tc-article__meta span { display: inline-flex; align-items: center; }

/* Badge "Asistido por IA" */
.tc-article__ai-badge {
    background: linear-gradient(135deg, #8b5cf6, #6366f1);
    color: white !important;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: .75rem;
    font-weight: 600;
}
.tc-article__ai-badge i { color: white !important; }

/* Cover image como <figure> */
figure.tc-article__cover {
    margin: 0 0 30px;
    border-radius: 12px;
    overflow: hidden;
}
figure.tc-article__cover img {
    width: 100%;
    height: auto;
    display: block;
}

/* Contenido HTML del artículo */
.tc-article__content {
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--tc-text);
}
.tc-article__content h2 {
    font-family: "Oswald", -apple-system, sans-serif;
    font-size: 1.6rem;
    font-weight: 700;
    margin: 36px 0 16px;
    color: var(--tc-primary-dark);
}
.tc-article__content h3 {
    font-family: "Oswald", -apple-system, sans-serif;
    font-size: 1.25rem;
    font-weight: 600;
    margin: 28px 0 12px;
    color: var(--tc-text);
}
.tc-article__content p { margin: 0 0 18px; }
.tc-article__content ul, .tc-article__content ol { margin: 0 0 20px; padding-left: 28px; }
.tc-article__content li { margin-bottom: 8px; }
.tc-article__content a {
    color: var(--tc-primary);
    text-decoration: underline;
    text-decoration-color: rgba(21,101,192,.3);
    text-underline-offset: 3px;
}
.tc-article__content a:hover { text-decoration-color: var(--tc-primary); }
.tc-article__content blockquote {
    border-left: 4px solid var(--tc-accent);
    background: #fff7ed;
    padding: 16px 20px;
    margin: 20px 0;
    border-radius: 0 8px 8px 0;
    font-style: italic;
    color: #78350f;
}
.tc-article__content blockquote p:last-child { margin-bottom: 0; }
.tc-article__content code {
    background: var(--tc-bg-soft);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: ui-monospace, monospace;
    font-size: .9em;
    color: var(--tc-primary-dark);
}
.tc-article__content strong { font-weight: 700; color: var(--tc-text); }

/* Caja "Datos clave" dentro del contenido */
.tc-article__content .tc-callout {
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    border: 1px solid #bfdbfe;
    padding: 18px 22px;
    border-radius: 10px;
    margin: 24px 0;
}
.tc-article__content .tc-callout strong { color: var(--tc-primary-dark); }

/* Caja de "Fuente / referencia" al final */
.tc-article__source {
    background: var(--tc-bg-soft);
    border-left: 4px solid var(--tc-primary);
    padding: 16px 20px;
    margin: 30px 0 24px;
    border-radius: 0 8px 8px 0;
    font-size: .9rem;
    color: var(--tc-text-muted);
    line-height: 1.6;
}
.tc-article__source strong {
    color: var(--tc-text);
    display: block;
    margin-bottom: 6px;
    font-size: .92rem;
}
.tc-article__source i { color: var(--tc-primary); margin-right: 4px; }

/* Tags al final */
.tc-article__tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin: 24px 0;
    padding-top: 16px;
    border-top: 1px solid var(--tc-border);
}
.tc-article__tags i { color: var(--tc-primary); }
.tc-tag-chip {
    display: inline-block;
    padding: 4px 12px;
    background: var(--tc-bg-soft);
    border: 1px solid var(--tc-border);
    border-radius: 16px;
    color: var(--tc-text);
    text-decoration: none;
    font-size: .85rem;
    transition: background .15s, border-color .15s;
}
.tc-tag-chip:hover {
    background: var(--tc-primary);
    color: white;
    border-color: var(--tc-primary);
    text-decoration: none;
}

/* Artículos relacionados */
.tc-article__related {
    background: var(--tc-bg-soft);
    border-radius: 16px;
    padding: 30px 24px;
    margin-top: 40px;
}
.tc-article__related h2 {
    font-family: "Oswald", -apple-system, sans-serif;
    color: var(--tc-primary-dark);
    margin-top: 0;
}
.tc-article__related .tc-article-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

/* Banner ads (no críticos pero por si están) */
.tc-ad-wrapper {
    margin: 20px 0;
    text-align: center;
}

/* Disclaimer */
.tc-disclaimer {
    background: #fffbeb;
    border: 1px solid #fcd34d;
    border-radius: 8px;
    padding: 14px 18px;
    margin: 20px 0;
    color: #78350f;
    font-size: .9rem;
}

/* Breadcrumb dentro del contenedor del artículo */
.breadcrumb {
    background: transparent;
    padding: 0;
    margin-bottom: 16px;
    font-size: .85rem;
}

/* ═══════════════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
    .tc-aprende-hero { padding: 40px 0 50px; margin-bottom: 24px; }
    .tc-aprende-hero__search { flex-direction: column; padding: 12px; border-radius: 14px; }
    .tc-aprende-hero__search button { width: 100%; padding: 12px; }
    .tc-category-grid { grid-template-columns: 1fr; }
    .tc-article { padding: 24px 20px; border-radius: 12px; }
    .tc-article__content { font-size: 1rem; }
    .tc-article__title { font-size: 1.5rem; }
    .tc-article__meta { gap: 10px; font-size: .8rem; }
    .tc-article__related { padding: 20px 16px; }
}