:root{--bg:#f5f6fa;--card:#fff;--text:#1d2130;--muted:#626a80;--brand:#e2231a;--brand2:#1f6feb;--line:#e3e6ee;--ad:#fafbfd}
@media (prefers-color-scheme:dark){:root{--bg:#0f1117;--card:#171a23;--text:#e8eaf0;--muted:#9aa2b5;--line:#272b38;--ad:#12151d}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--brand2);text-decoration:none}a:hover{text-decoration:underline}
.top{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.top .in{max-width:1120px;margin:auto;padding:12px 16px;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.logo{font-weight:800;font-size:22px;color:var(--text)}.logo b{color:var(--brand)}
.top nav{display:flex;gap:14px;flex-wrap:wrap;font-size:15px}.top nav a{color:var(--muted)}
.wrap{max-width:1120px;margin:auto;padding:20px 16px;display:grid;grid-template-columns:1fr 300px;gap:24px}
@media (max-width:900px){.wrap{grid-template-columns:1fr}.side{display:none}}
.hero h1{font-size:clamp(26px,4vw,38px);line-height:1.2;margin:0 0 6px}.hero p{color:var(--muted);margin:0 0 18px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;display:flex;flex-direction:column;color:var(--text);transition:transform .15s}
.card:hover{transform:translateY(-3px);text-decoration:none}
.card .img{height:130px;display:grid;place-items:center;font-size:52px}
.card .body{padding:14px}.card h2{font-size:18px;margin:4px 0 6px;line-height:1.3}.card p{margin:0;color:var(--muted);font-size:14px}
.tag{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--brand)}
article{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px}
article h1{font-size:clamp(26px,4vw,36px);line-height:1.2;margin:6px 0}
article .meta{color:var(--muted);font-size:14px;margin-bottom:16px}
article h2{margin-top:28px;font-size:22px}
article li{margin:4px 0}
.box{background:var(--bg);border-left:4px solid var(--brand2);padding:12px 16px;border-radius:8px;margin:16px 0}
.box.warn{border-color:var(--brand)}
.side .sticky{position:sticky;top:76px;display:flex;flex-direction:column;gap:16px}
.side .list{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px}
.side .list h3{margin:0 0 8px;font-size:16px}.side .list a{display:block;padding:6px 0;border-top:1px solid var(--line);font-size:14px}
/* Espacios de anuncio */
.ad{margin:20px 0;text-align:center;min-height:100px}
.ad small{display:block;font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px}
.ad .ph{background:var(--ad);border:1px dashed var(--line);border-radius:10px;min-height:90px;display:grid;place-items:center;color:var(--muted);font-size:14px}
.ad.tall .ph{min-height:600px}.ad.box250 .ph{min-height:250px}
.ad-top{max-width:1120px;margin:12px auto 0;padding:0 16px}
footer{border-top:1px solid var(--line);margin-top:30px;padding:24px 16px;text-align:center;color:var(--muted);font-size:13px}
.destacado{flex-direction:row;margin-bottom:8px}.destacado .img{height:auto;min-height:200px;flex:0 0 40%;font-size:90px}
.destacado .body{padding:22px;align-self:center}.destacado h2{font-size:clamp(22px,3vw,30px)}.destacado p{font-size:16px}
@media (max-width:600px){.destacado{flex-direction:column}.destacado .img{min-height:150px}}
img.img{width:100%;object-fit:cover;display:block}.destacado img.img{flex:0 0 50%;width:50%;min-height:220px}
@media (max-width:600px){.destacado img.img{width:100%;min-height:0;aspect-ratio:2/1}}
.portada{width:100%;border-radius:12px;display:block;margin:4px 0 16px}
article h3{margin:18px 0 4px;font-size:18px}