/* tumundoweb v1 — estilo Acelia: Blog & articles. SEO + responsive + dark mode + print */
:root{
  --bg:#b9aad9; --card:#ffffff; --cream:#f7f5f1; --ink:#101418; --muted:#5c6470;
  --line:#e8e4dc; --brand:#0b2f2a; --brand2:#123f38; --accent:#0e7c66;
  --radius:20px; --radius-s:14px; --shadow:0 12px 40px rgba(20,20,40,.12);
  --max:1120px; --font:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
[data-theme="dark"]{
  --card:#111715; --cream:#0d1312; --ink:#eef4f2; --muted:#a7b5b0;
  --line:#223029; --bg:#2b2540; --shadow:0 12px 40px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}
a{color:inherit}
.wrap{max-width:var(--max);margin:22px auto;padding:0 14px}
.page{background:var(--card);border-radius:26px;overflow:hidden;box-shadow:var(--shadow)}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 28px;border-bottom:1px solid var(--line);position:sticky;top:0;background:color-mix(in srgb,var(--card) 92%,transparent);backdrop-filter:blur(10px);z-index:20}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:18px;text-decoration:none}
.brand img{width:26px;height:26px}
nav.main{display:flex;gap:18px;align-items:center;font-size:14px}
nav.main a{text-decoration:none;color:var(--muted);font-weight:600}
nav.main a[aria-current="page"],nav.main a:hover{color:var(--ink)}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--brand);color:#fff;border:0;border-radius:11px;padding:11px 18px;font-weight:700;font-size:14px;cursor:pointer;text-decoration:none}
.btn:hover{background:var(--brand2)}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn.light{background:#fff;color:var(--brand)}
.iconbtn{border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:10px;padding:8px 10px;cursor:pointer;font-size:15px}
.hero{padding:44px 28px 10px;text-align:center}
.hero h1{font-size:clamp(34px,5vw,58px);line-height:.95;letter-spacing:-.04em;margin:0 0 8px;font-weight:800}
.hero p.sub{color:var(--muted);max-width:62ch;margin:0 auto;text-align:center}
.filters{display:flex;gap:8px;flex-wrap:wrap;padding:18px 28px}
.chip{border:1px solid var(--line);background:var(--card);color:var(--ink);padding:8px 14px;border-radius:999px;font-size:13px;font-weight:600;cursor:pointer}
.chip[aria-pressed="true"]{background:var(--brand);color:#fff;border-color:var(--brand)}
.searchrow{display:flex;gap:10px;padding:0 28px 6px;flex-wrap:wrap}
.searchrow input,.searchrow select{border:1px solid var(--line);border-radius:11px;padding:11px 13px;font-size:14px;background:var(--card);color:var(--ink);min-width:200px}
.searchrow input{flex:1;min-width:220px}
.featured{margin:14px 28px 8px;display:grid;grid-template-columns:1.55fr .9fr;gap:26px;background:var(--cream);border:1px solid var(--line);border-radius:var(--radius);padding:18px;align-items:center}
.featured img{width:100%;height:340px;object-fit:cover;border-radius:14px;display:block;background:#ddd}
.kicker{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;background:#e9e4d8;border-radius:7px;padding:5px 9px;margin-bottom:10px}
[data-theme="dark"] .kicker{background:#1e2a27}
.featured h2{font-size:clamp(22px,3vw,32px);margin:0 0 10px;letter-spacing:-.03em;line-height:1.05}
.featured p{color:var(--muted);font-size:15px;line-height:1.6;margin:0 0 16px}
.section{padding:26px 28px}
.section.cream{background:var(--cream);border-top:1px solid var(--line)}
.eyebrow{font-size:12px;color:var(--muted);margin:0 0 4px}
.section h2.big{font-size:clamp(26px,3.4vw,38px);letter-spacing:-.035em;margin:0 0 18px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{border:1px solid var(--line);border-radius:var(--radius-s);overflow:hidden;background:var(--card);display:flex;flex-direction:column}
.card img{width:100%;height:190px;object-fit:cover;display:block;background:#e8e8e8}
/* Miniaturas estilo YouTube: 8 diseños tipográficos distintos */
.thumb{position:relative;overflow:hidden;line-height:0}
.card .thumb{border-radius:0}
.featured .thumb{border-radius:14px}
.posthero .thumb{border-radius:16px}
.thumb img{width:100%}
.tt{position:absolute;line-height:.95;font-weight:900;text-transform:uppercase;letter-spacing:-.01em}
.tchip{position:absolute;line-height:1;font-weight:900;font-size:12px;letter-spacing:.04em;padding:7px 11px;border-radius:9px}
/* v1 HTML: clásico borde negro abajo-izquierda */
.v1 .tt{left:12px;right:12px;bottom:12px;font-size:22px;color:#fff;transform:rotate(-2deg);text-shadow:2px 2px 0 #111,-2px 2px 0 #111,2px -2px 0 #111,-2px -2px 0 #111,0 8px 22px rgba(0,0,0,.55)}
.v1 .tchip{top:10px;left:10px;background:#ffd500;color:#111;box-shadow:2px 2px 0 #111;transform:rotate(-2deg)}
/* v2 CSS: caja negra centrada arriba */
.v2 .tt{top:10px;left:10px;right:10px;background:#111;color:#fff;font-size:20px;padding:9px 10px;border-radius:10px;text-align:center}
.v2 .tchip{bottom:10px;right:10px;background:#fff;color:#111}
/* v3 JS: degradado itálico inclinado */
.v3 .tt{top:12px;left:12px;right:12px;font-size:24px;font-style:italic;background:linear-gradient(180deg,#fff 30%,#ffd500 70%);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(2px 2px 0 #7c2d12);transform:skew(-6deg)}
.v3 .tchip{bottom:10px;left:10px;background:#7c2d12;color:#fff}
/* v4 Diseño: resaltador marcador */
.v4 .tt{left:12px;right:12px;bottom:12px;font-size:21px;color:#111;background:linear-gradient(transparent 30%,#ff5fa2 30% 92%,transparent 92%);padding:0 4px;transform:rotate(1deg)}
.v4 .tchip{top:10px;right:10px;background:#ff5fa2;color:#fff;transform:rotate(3deg)}
/* v5 SEO: píldora blanca centrada */
.v5 .tt{left:14px;right:14px;bottom:14px;text-align:center;font-size:19px;line-height:1.25;color:#0b4a6f;background:#fff;border:3px solid #0b4a6f;border-radius:999px;padding:8px 12px}
.v5 .tchip{top:10px;left:50%;transform:translateX(-50%) rotate(-2deg);background:#0b4a6f;color:#fff}
/* v6 Velocidad: rojo racing itálico arriba-derecha */
.v6 .tt{top:10px;right:10px;max-width:82%;text-align:right;font-size:24px;font-style:italic;color:#e11d2e;-webkit-text-stroke:1px #fff;paint-order:stroke fill;text-shadow:3px 3px 0 #111;transform:skew(-8deg)}
.v6 .tchip{bottom:10px;left:10px;background:#e11d2e;color:#fff}
/* v7 Accesibilidad: burbuja redondeada */
.v7 .tt{left:12px;right:12px;bottom:12px;text-align:center;font-size:19px;line-height:1.3;color:#fff;background:rgba(11,47,42,.93);border-radius:16px;padding:10px}
.v7 .tchip{top:10px;right:10px;background:#0e7c66;color:#fff}
/* v8 Despliegue: explosivo amarillo rotado */
.v8 .tt{left:10px;right:10px;bottom:14px;font-size:26px;color:#ffd500;-webkit-text-stroke:1px #7c2d12;text-shadow:3px 3px 0 #7c2d12;transform:rotate(-4deg);text-align:center}
.v8 .tchip{top:10px;left:10px;background:#ff6b1a;color:#fff;transform:rotate(-6deg);box-shadow:2px 2px 0 #7c2d12}
/* Titulares grandes en destacado y posts */
.featured .tt{font-size:clamp(28px,3.4vw,44px)}
.posthero .tt{font-size:clamp(24px,3vw,36px)}
.card .pad{padding:14px 15px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.tag{font-size:11px;font-weight:800;background:#efede6;border-radius:6px;padding:4px 8px;width:fit-content}
[data-theme="dark"] .tag{background:#223029}
.card h3{margin:0;font-size:17px;line-height:1.25;letter-spacing:-.02em}
.card h3 a{text-decoration:none}
.card h3 a:hover{text-decoration:underline}
.card p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.55}
.card .meta{display:flex;gap:10px;align-items:center;color:var(--muted);font-size:12px;margin-top:auto;padding-top:8px}
.card .row{display:flex;gap:8px;margin-top:10px}
.linkbtn{font-size:13px;font-weight:700;color:var(--ink);text-decoration:none;border:1px solid var(--line);padding:8px 12px;border-radius:9px}
.linkbtn.solid{background:var(--brand);color:#fff;border-color:var(--brand)}
.newsletter{margin:22px 28px;border-radius:var(--radius);background:var(--brand);color:#eafff8;padding:26px;display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:center}
.newsletter h3{margin:0 0 8px;font-size:24px;letter-spacing:-.03em}
.newsletter p{margin:0 0 12px;opacity:.85;font-size:14px;line-height:1.6}
.newsletter form{display:flex;gap:8px}
.newsletter input{flex:1;border-radius:10px;border:0;padding:12px;font-size:14px}
.newsletter button{border-radius:10px;border:0;background:#fff;color:var(--brand);font-weight:800;padding:12px 16px;cursor:pointer}
.formmsg{font-size:13px;min-height:18px;margin-top:8px}
footer{padding:26px 28px;border-top:1px solid var(--line);display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:18px;font-size:13.5px;color:var(--muted)}
footer h4{color:var(--ink);font-size:13px;margin:0 0 10px;text-transform:uppercase;letter-spacing:.07em}
footer a{display:block;text-decoration:none;padding:4px 0}
footer a:hover{text-decoration:underline}
/* Post */
.progress{position:sticky;top:61px;height:3px;background:transparent;z-index:15}
.progress i{display:block;height:3px;background:var(--accent);width:0}
.posthero{padding:30px 28px 0;display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
.posthero img{width:100%;height:320px;object-fit:cover;border-radius:16px}
.posthero h1{font-size:clamp(28px,4vw,44px);letter-spacing:-.04em;line-height:1;margin:8px 0 10px}
.postmeta{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin:10px 0}
.postbody{display:grid;grid-template-columns:220px 1fr;gap:28px;padding:22px 28px}
.toc{position:sticky;top:80px;align-self:start;border:1px solid var(--line);border-radius:12px;padding:14px;font-size:13px;background:var(--card)}
.toc b{display:block;margin-bottom:8px;font-size:12px;text-transform:uppercase;letter-spacing:.07em}
.toc a{display:block;text-decoration:none;padding:5px 0;color:var(--muted)}
.toc a:hover,.toc a.active{color:var(--ink);font-weight:700}
.article{max-width:72ch;font-size:16px;line-height:1.75}
.article h2{font-size:26px;letter-spacing:-.03em;margin:30px 0 8px}
.article h3{font-size:19px;margin:22px 0 6px}
.article p{margin:10px 0}
.article ul,.article ol{padding-left:20px}
.article li{margin:6px 0}
pre{position:relative;background:#0d1514;color:#d7f0e6;border-radius:12px;padding:16px;overflow:auto;font-family:var(--mono);font-size:13.5px;line-height:1.6}
code{font-family:var(--mono);font-size:.9em;background:rgba(127,127,127,.16);padding:2px 6px;border-radius:6px}
pre code{background:transparent;padding:0}
.copybtn{position:absolute;top:8px;right:8px;border:0;border-radius:8px;background:#ffffff22;color:#fff;padding:6px 10px;cursor:pointer;font-size:12px}
.callout{border-left:4px solid var(--accent);background:color-mix(in srgb,var(--accent) 9%,var(--card));padding:12px 14px;border-radius:0 12px 12px 0;margin:16px 0}
.checklist{list-style:none;padding:0}
.checklist li{padding-left:28px;position:relative;margin:8px 0}
.checklist li::before{content:"✓";position:absolute;left:0;top:0;width:20px;height:20px;border-radius:50%;background:var(--accent);color:#fff;font-size:12px;display:grid;place-items:center;font-weight:800}
.faq details{border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin:8px 0}
.faq summary{cursor:pointer;font-weight:700}
.comments{margin:10px 28px 30px;border:1px solid var(--line);border-radius:16px;padding:20px;background:var(--card)}
.comments h2{margin:0 0 4px}
.comments .hint{color:var(--muted);font-size:13px;margin:0 0 14px}
.cform{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:14px}
.cform input,.cform textarea{border:1px solid var(--line);border-radius:10px;padding:11px;font-size:14px;background:var(--card);color:var(--ink);width:100%}
.cform textarea{grid-column:1/-1;min-height:90px;resize:vertical}
.clist{display:flex;flex-direction:column;gap:10px;margin-top:12px}
.citem{border:1px solid var(--line);border-radius:12px;padding:12px;background:var(--cream)}
.citem .chead{display:flex;gap:8px;align-items:baseline;font-size:13px;color:var(--muted)}
.citem .chead b{color:var(--ink);font-size:14px}
.citem p{margin:8px 0 0;font-size:14px;line-height:1.6}
.cactions{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
/* Util */
.toolbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.badge{font-size:12px;color:var(--muted)}
table.spec{width:100%;border-collapse:collapse;font-size:14px;margin:12px 0}
table.spec th,table.spec td{border:1px solid var(--line);padding:9px 10px;text-align:left}
table.spec th{background:var(--cream)}
.skip{position:absolute;left:-9999px}
.skip:focus{left:10px;top:10px;background:#fff;padding:10px;z-index:99}
.breadcrumb{font-size:12.5px;color:var(--muted);padding:16px 28px 0}
.breadcrumb a{text-decoration:none}.breadcrumb a:hover{text-decoration:underline}
.related .grid{grid-template-columns:repeat(3,1fr)}
.empty{padding:30px;text-align:center;color:var(--muted)}
@media(max-width:900px){
  .featured,.posthero,.newsletter{grid-template-columns:1fr}
  .grid,.related .grid{grid-template-columns:1fr 1fr}
  .postbody{grid-template-columns:1fr}
  .toc{position:static}
  footer{grid-template-columns:1fr 1fr}
  nav.main{display:none}
  nav.main.open{display:flex;position:absolute;top:60px;right:14px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px;flex-direction:column;z-index:30}
}
@media(max-width:560px){.grid,.related .grid{grid-template-columns:1fr}.cform{grid-template-columns:1fr}.wrap{padding:0 8px}}
@media print{.topbar,.filters,.searchrow,.newsletter,.comments,.toolbar,footer,.toc,.progress{display:none!important}.page{box-shadow:none}}

footer{grid-template-columns:1.3fr 1fr auto;align-items:start}
.footsearch{align-self:center;min-width:200px}
.footsearch input{width:100%;box-sizing:border-box;border:1px solid var(--line);border-radius:999px;padding:12px 18px;font-size:14px;background:var(--card);color:var(--ink)}
.footnav{display:flex;gap:28px;justify-content:flex-end}
@media(max-width:900px){footer{grid-template-columns:1fr}.footnav{justify-content:flex-start;flex-wrap:wrap}}

footer{align-items:center;grid-template-columns:minmax(0,1.35fr) minmax(220px,330px) auto;gap:28px}
.footfine{font-size:12.5px}
.footfine a{display:inline;padding:0}
.footsearch input{box-shadow:0 2px 10px rgba(20,20,40,.07)}
.footsearch input:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:var(--brand)}

.menubtn{display:none}
@media(max-width:900px){.menubtn{display:inline-block}}

.chatbtns{display:flex;gap:12px;flex-wrap:wrap;margin:14px 0}
.wabtn,.tgbtn{display:inline-flex;align-items:center;gap:10px;border:0;border-radius:12px;padding:13px 20px;font-weight:800;font-size:15px;cursor:pointer;text-decoration:none;color:#fff}
.wabtn{background:#25D366}.wabtn:hover{background:#1eb856}
.tgbtn{background:#229ED9}.tgbtn:hover{background:#1b8ac0}