/* ============================================================
   CSS para páginas de artículo (SEO)
   ============================================================ */
:root {
    --fondo: #0f131a;
    --tarjeta: #171c26;
    --borde: #2a3140;
    --texto: #e8ecf3;
    --texto-suave: #9aa6b8;
    --acento: #ffd166;
    --verde: #6ee7a0;
    --azul: #5aa9ff;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--fondo);
    color: var(--texto);
    line-height: 1.6;
}

.art-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    max-width: 980px;
    margin: 0 auto;
    padding: 18px 20px;
}

.art-logo {
    font-weight: 800;
    font-size: 18px;
    color: var(--texto);
    text-decoration: none;
}

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

.art-header nav {
    font-size: 14px;
    color: var(--texto-suave);
}

.art-header nav a {
    color: var(--texto-suave);
    text-decoration: none;
}

.art-header nav a:hover { color: var(--acento); }

/* Espacios publicitarios (mismo estilo que la portada) */
.banner-ads {
    max-width: 980px;
    margin: 24px auto;
    padding: 18px;
    text-align: center;
    border: 1px dashed var(--borde);
    border-radius: 12px;
    color: var(--texto-suave);
    font-size: 14px;
    background: #12161f;
}
.banner-ads-activo {
    border: 0;
    background: transparent;
    padding: 10px 0;
    min-height: 90px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.art-main {
    max-width: 980px;
    margin: 0 auto;
    padding: 8px 20px 40px;
}

.art-main h1 {
    font-size: 30px;
    line-height: 1.25;
    margin: 12px 0 14px;
}

.art-main p { color: var(--texto-suave); }

.art-main h1 em,
.art-main h2 { color: var(--acento); }

.art-main .art-intro { font-size: 17px; }

.art-tabla {
    width: 100%;
    border-collapse: collapse;
    background: var(--tarjeta);
    border: 1px solid var(--borde);
    border-radius: 14px;
    overflow: hidden;
    margin: 18px 0;
    font-size: 14px;
}

.art-tabla th {
    text-align: left;
    color: var(--texto-suave);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    padding: 12px 14px;
    border-bottom: 1px solid var(--borde);
}

.art-tabla td {
    padding: 12px 14px;
    border-bottom: 1px solid #212834;
    vertical-align: middle;
}

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

.art-tabla tbody tr:nth-child(even) { background: #1a202b; }

.btn-compra {
    display: inline-block;
    background: var(--verde);
    color: #10271c !important;
    font-weight: 700;
    font-size: 13px;
    text-decoration: none;
    padding: 8px 12px;
    border-radius: 8px;
    white-space: nowrap;
}

.btn-compra:hover { filter: brightness(1.1); }

.btn-catalogo {
    display: inline-block;
    background: var(--acento);
    color: #241d07 !important;
    font-weight: 700;
    text-decoration: none;
    padding: 12px 18px;
    border-radius: 10px;
    margin-top: 6px;
}

.btn-catalogo:hover { filter: brightness(1.1); }

.art-footer {
    border-top: 1px solid var(--borde);
    max-width: 980px;
    margin: 0 auto;
    padding: 22px 20px 40px;
    font-size: 13px;
    color: var(--texto-suave);
}

.art-footer a { color: var(--texto-suave); }

.art-footer a:hover { color: var(--acento); }

.dos-columnas {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 18px 0;
}

.caja {
    background: var(--tarjeta);
    border: 1px solid var(--borde);
    border-radius: 12px;
    padding: 16px 18px;
}

.caja h3 { margin-top: 0; }

.caja ul { margin: 8px 0 0; padding-left: 18px; }

.caja li { margin-bottom: 6px; color: var(--texto-suave); }

@media (max-width: 640px) {
    .dos-columnas { grid-template-columns: 1fr; }
    .art-main h1 { font-size: 24px; }
}