:root{
  --bg:#f6f7f9; --card:#ffffff; --ink:#16213a; --muted:#5b667d; --line:#dde1e9;
  --accent:#0b6b73; --alert:#c8321e; --img1:#cfe3e6; --img2:#e9d9c9;
  --serif:"Source Serif 4",Georgia,"Times New Roman",serif;
  --sans:"Public Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0f1524;--card:#171e31;--ink:#eaeef7;--muted:#9aa5bd;--line:#2a3350;--accent:#4fc0c9;--alert:#ff6a55;--img1:#21404a;--img2:#3b3330}
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font:16px/1.6 var(--sans)}
a{color:inherit;text-decoration:none}
a:hover h2,a:hover h3,a:hover h4{text-decoration:underline;text-underline-offset:3px}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
h1,h2,h3,h4{font-family:var(--serif);line-height:1.2;font-weight:700}
.meta{font-size:.85rem;color:var(--muted)}
.tag{color:var(--accent);font-weight:600;font-size:.85rem}

/* Cabecera */
.ticker{background:var(--alert);color:#fff;font-size:.9rem}
.ticker .wrap{display:flex;gap:12px;padding-top:6px;padding-bottom:6px;overflow:hidden;white-space:nowrap}
.ticker strong{flex:none}
.ticker a{overflow:hidden;text-overflow:ellipsis}
header.top{background:var(--card);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0}
.logo{font:700 1.9rem/1 var(--serif);letter-spacing:-.02em}
.logo span{color:var(--accent)}
.search{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--bg)}
.search input{border:0;background:transparent;color:inherit;padding:8px 12px;font:inherit;width:190px}
.search button{border:0;background:var(--accent);color:#fff;padding:0 14px;font:inherit;cursor:pointer}
nav.main{border-top:1px solid var(--line)}
nav.main ul{display:flex;gap:6px;list-style:none;overflow-x:auto}
nav.main a{display:block;padding:12px 12px;font-weight:600;font-size:.95rem;white-space:nowrap;border-bottom:3px solid transparent}
nav.main a:hover,nav.main a[aria-current]{border-bottom-color:var(--accent);color:var(--accent)}

/* Imagen de marcador: reemplaza por <img> */
.ph{display:block;width:100%;aspect-ratio:16/10;border-radius:8px;background:linear-gradient(135deg,var(--img1),var(--img2));object-fit:cover}

/* Portada */
.hero{display:grid;grid-template-columns:2fr 1fr;gap:28px;padding:32px 0}
.lead h1{font-size:clamp(1.8rem,3.6vw,2.7rem);margin:14px 0 10px}
.lead p{color:var(--muted);font-size:1.08rem;max-width:62ch}
.side{display:flex;flex-direction:column;gap:20px}
.side article{padding-bottom:20px;border-bottom:1px solid var(--line)}
.side article:last-child{border:0}
.side h3{font-size:1.2rem;margin:6px 0}

/* Contenido principal */
.layout{display:grid;grid-template-columns:2fr 1fr;gap:40px;padding-bottom:40px}
.sec-title{font-size:1.5rem;padding-bottom:10px;margin-bottom:6px;border-bottom:2px solid var(--ink)}
.feed article{display:grid;grid-template-columns:200px 1fr;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}
.feed h3{font-size:1.3rem;margin:4px 0 6px}
.feed p{color:var(--muted)}
.more{display:inline-block;margin-top:20px;padding:10px 18px;border:1px solid var(--ink);border-radius:8px;font-weight:600}
.more:hover{background:var(--ink);color:var(--bg)}

aside .box{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:20px;margin-bottom:24px}
aside h2{font-size:1.2rem;margin-bottom:12px}
.top-list{list-style:none;counter-reset:n}
.top-list li{counter-increment:n;display:grid;grid-template-columns:28px 1fr;gap:6px;padding:10px 0;border-bottom:1px solid var(--line)}
.top-list li:last-child{border:0}
.top-list li::before{content:counter(n);font:700 1.3rem var(--serif);color:var(--accent)}
.top-list a{font-weight:500}
.news-form{display:flex;flex-direction:column;gap:10px}
.news-form input{padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:inherit;font:inherit}
.news-form button{padding:10px;border:0;border-radius:8px;background:var(--accent);color:#fff;font:600 1rem var(--sans);cursor:pointer}
.cats{display:flex;flex-wrap:wrap;gap:8px;list-style:none}
.cats a{display:block;padding:4px 12px;border:1px solid var(--line);border-radius:99px;font-size:.88rem}
.cats a:hover{border-color:var(--accent);color:var(--accent)}

/* Blog */
.blog{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:40px 0}
.blog .head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:22px}
.blog .head a{color:var(--accent);font-weight:600}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cards h3{font-size:1.25rem;margin:12px 0 6px}
.cards p{color:var(--muted);font-size:.95rem}
.author{display:flex;align-items:center;gap:8px;margin-top:10px}
.avatar{width:28px;height:28px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;font-size:.75rem;font-weight:600}

/* Pie */
footer{padding:36px 0;color:var(--muted);font-size:.9rem}
.foot{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between}
.foot ul{list-style:none;display:flex;flex-wrap:wrap;gap:16px}
.foot a:hover{color:var(--accent)}

@media (max-width:900px){
  .hero,.layout{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .bar{flex-wrap:wrap}
  .search{width:100%}.search input{flex:1;width:auto}
  .feed article{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}