:root{
  --bg:#07090f;--surface:#101624;--txt:#f2f5fa;--txt-2:#a7b0c3;--txt-3:#6b7689;
  --line:rgba(255,255,255,.09);--fire:#ff6b2c;--fire-2:#ffb42e;
  --fire-grad:linear-gradient(100deg,#ff5a1f,#ff8a3c 55%,#ffb42e);
  --font-h:'Sora',system-ui,sans-serif;--font-b:'Inter',system-ui,sans-serif;
}
@media (prefers-color-scheme:light){:root{
  --bg:#f6f7fb;--surface:#fff;--txt:#111827;--txt-2:#3f4a5f;--txt-3:#6d7789;--line:rgba(15,23,42,.1);
}}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--txt);font-family:var(--font-b);font-size:17px;line-height:1.75;-webkit-font-smoothing:antialiased}
a{color:var(--fire);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--font-h);line-height:1.2;letter-spacing:-.02em}
img{max-width:100%;height:auto;border-radius:14px}

.bnav{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  padding:16px clamp(18px,5vw,48px);background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.blogo{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-h);font-weight:700;font-size:18px;color:var(--txt)}
.blogo .mark{width:30px;height:30px;border-radius:9px;background:var(--fire-grad);display:grid;place-items:center;color:#1a0c02;font-weight:800}
.bnav nav{display:flex;align-items:center;gap:20px;font-size:14.5px;font-weight:500}
.bnav nav a{color:var(--txt-2)}.bnav nav a:hover{color:var(--txt);text-decoration:none}
.bnav .cta,.cta{background:var(--fire-grad);color:#1a0c02!important;padding:9px 18px;border-radius:999px;font-weight:700;box-shadow:0 8px 26px -10px rgba(255,107,44,.6)}
.cta:hover{text-decoration:none;transform:translateY(-1px)}

.tag{display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--fire);margin-bottom:12px}

/* índice */
.blog-index{max-width:1080px;margin:0 auto;padding:44px clamp(18px,5vw,48px) 90px}
.bhead{max-width:680px;margin-bottom:44px}
.bhead h1{font-size:clamp(30px,5vw,46px);margin:6px 0 14px}
.bhead p{color:var(--txt-2);font-size:18px}
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px}
.pcard{display:block;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;transition:transform .15s,border-color .2s}
.pcard:hover{transform:translateY(-3px);border-color:rgba(255,107,44,.4);text-decoration:none}
.pcard h2{font-size:20px;margin:2px 0 8px;color:var(--txt)}
.pcard p{color:var(--txt-2);font-size:14.5px;line-height:1.6}
.pcard .pmeta{display:block;margin-top:14px;font-size:12.5px;color:var(--txt-3)}

/* artículo */
.article{max-width:720px;margin:0 auto;padding:34px clamp(18px,5vw,24px) 80px}
.crumbs{font-size:13px;color:var(--txt-3);margin-bottom:18px}
.crumbs a{color:var(--txt-3)}
.article h1{font-size:clamp(28px,5vw,42px);margin:6px 0 16px}
.lede{font-size:20px;color:var(--txt-2);line-height:1.6;margin-bottom:26px}
.byline{display:flex;align-items:center;gap:12px;padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:32px}
.byline .av{width:42px;height:42px;border-radius:50%;background:var(--fire-grad);display:grid;place-items:center;color:#1a0c02;font-weight:800;font-family:var(--font-h)}
.byline b{display:block;font-size:15px}
.byline span{font-size:13px;color:var(--txt-3)}
.prose>*{margin-bottom:22px}
.prose h2{font-size:27px;margin:44px 0 14px}
.prose h3{font-size:21px;margin:32px 0 10px}
.prose ul,.prose ol{padding-left:24px}
.prose li{margin-bottom:9px}
.prose strong{color:var(--txt)}
.prose code{font-family:ui-monospace,monospace;font-size:14px;background:color-mix(in srgb,var(--txt) 8%,transparent);padding:2px 6px;border-radius:6px}
.prose blockquote{border-left:3px solid var(--fire);padding:6px 0 6px 20px;margin:26px 0;color:var(--txt-2);font-style:italic}
.prose a{font-weight:600}

.inline-cta,.fcta{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  background:color-mix(in srgb,var(--fire) 8%,var(--surface));border:1px solid rgba(255,107,44,.25);border-radius:18px;padding:26px 28px;margin:44px 0}
.inline-cta b{font-family:var(--font-h);font-size:19px}
.inline-cta p{color:var(--txt-2);font-size:14.5px;margin-top:4px}

.faq{margin:44px 0}
.faq h2{font-size:25px;margin-bottom:16px}
.faq details{border-bottom:1px solid var(--line);padding:14px 0}
.faq summary{font-weight:600;cursor:pointer;font-size:16.5px;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary:before{content:'+ ';color:var(--fire);font-weight:800}
.faq details[open] summary:before{content:'– '}
.faq p{color:var(--txt-2);margin-top:10px}

.related{margin-top:50px}
.related h2{font-size:23px;margin-bottom:16px}
.rel-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.rel-grid a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px}
.rel-grid a:hover{border-color:rgba(255,107,44,.4);text-decoration:none}
.rel-grid b{display:block;font-size:15px;color:var(--txt);margin-bottom:5px}
.rel-grid span{font-size:12.5px;color:var(--txt-3);line-height:1.5}

.bfoot{border-top:1px solid var(--line);margin-top:40px}
.bfoot .wrap{max-width:900px;margin:0 auto;padding:44px clamp(18px,5vw,24px)}
.fcta h3{font-family:var(--font-h);font-size:22px}
.fcta p{color:var(--txt-2);font-size:14.5px;margin-top:6px;max-width:440px}
.flinks{margin-top:30px;font-size:13.5px;color:var(--txt-3)}
.flinks a{color:var(--txt-3)}
.fcopy{margin-top:12px;font-size:12.5px;color:var(--txt-3)}

/* ============ v2: blog escaneable (heros, TOC, keypoints, callouts, tablas) ============ */
.rprog{position:fixed;top:0;left:0;right:0;height:3px;z-index:60;background:transparent}
.rprog span{display:block;height:100%;width:0;background:var(--fire-grad)}
.phero{margin:0 0 26px}
.phero img{width:100%;border-radius:16px;border:1px solid var(--line);display:block}
.keypts{background:color-mix(in srgb,var(--fire) 7%,var(--surface));border:1px solid rgba(255,107,44,.28);border-radius:16px;padding:20px 24px;margin:0 0 26px}
.keypts b{font-family:var(--font-h);font-size:15.5px;display:block;margin-bottom:10px}
.keypts ul{list-style:none;padding:0;margin:0}
.keypts li{position:relative;padding-left:26px;margin-bottom:8px;font-size:15.5px;line-height:1.55;color:var(--txt-2)}
.keypts li:before{content:'✓';position:absolute;left:2px;top:0;color:var(--fire);font-weight:800}
.toc{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 22px;margin:0 0 30px;font-size:14.5px}
.toc b{font-family:var(--font-h);font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--txt-3);display:block;margin-bottom:8px}
.toc ol{margin:0;padding-left:20px}
.toc li{margin-bottom:5px}
.toc a{color:var(--txt-2);font-weight:500}
.toc a:hover{color:var(--fire)}
.prose{counter-reset:sec}
.prose h2{counter-increment:sec;position:relative;padding-top:8px}
.prose h2:before{content:counter(sec,decimal-leading-zero);position:absolute;top:-16px;left:0;font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--fire);opacity:.85}
.callout{border-radius:14px;padding:16px 20px;margin:26px 0;border:1px solid var(--line);background:var(--surface)}
.callout .c-head{display:flex;align-items:center;gap:9px;margin-bottom:6px;font-size:15px}
.callout .c-ic{font-size:18px}
.callout .c-body{font-size:15px;color:var(--txt-2);line-height:1.65}
.callout .c-body p{margin-bottom:8px}
.callout.c-tip{border-color:rgba(46,158,79,.35);background:color-mix(in srgb,#2e9e4f 6%,var(--surface))}
.callout.c-ojo{border-color:rgba(245,158,11,.35);background:color-mix(in srgb,#f59e0b 6%,var(--surface))}
.callout.c-dato{border-color:rgba(31,111,214,.35);background:color-mix(in srgb,#1f6fd6 6%,var(--surface))}
.tbl-scroll{overflow-x:auto;margin:26px 0;border:1px solid var(--line);border-radius:14px}
.tbl-scroll table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:520px}
.tbl-scroll th{background:color-mix(in srgb,var(--txt) 5%,var(--surface));text-align:left;padding:11px 14px;font-family:var(--font-h);font-size:13px}
.tbl-scroll td{padding:10px 14px;border-top:1px solid var(--line);color:var(--txt-2)}
.tbl-scroll tr:hover td{background:color-mix(in srgb,var(--txt) 3%,transparent)}
.shot,.pimg{margin:30px 0}
.shot img,.pimg img{width:100%;border-radius:14px;border:1px solid var(--line);display:block}
.shot figcaption,.pimg figcaption{font-size:13px;color:var(--txt-3);margin-top:9px;text-align:center}
.prose blockquote{border-left:none;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px 24px 20px 52px;position:relative;font-style:normal;font-size:17.5px}
.prose blockquote:before{content:'“';position:absolute;left:18px;top:8px;font-family:var(--font-h);font-size:42px;color:var(--fire);line-height:1}
.authorbox{display:flex;gap:16px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px 24px;margin:40px 0 0}
.authorbox .av{flex:none;width:52px;height:52px;border-radius:50%;background:var(--fire-grad);display:grid;place-items:center;color:#1a0c02;font-weight:800;font-family:var(--font-h);font-size:22px}
.authorbox b{font-family:var(--font-h);font-size:16px}
.authorbox p{font-size:14px;color:var(--txt-2);margin-top:5px;line-height:1.6}
/* índice v2 */
.feat{display:grid;grid-template-columns:1.15fr 1fr;gap:0;background:var(--surface);border:1px solid var(--line);border-radius:20px;overflow:hidden;margin-bottom:26px;transition:border-color .2s}
.feat:hover{border-color:rgba(255,107,44,.45);text-decoration:none}
.feat img{width:100%;height:100%;object-fit:cover;object-position:left center;border-radius:0;display:block}
.feat-body{padding:30px 32px;display:flex;flex-direction:column;justify-content:center}
.feat-body h2{font-size:clamp(21px,2.6vw,28px);color:var(--txt);margin:4px 0 10px}
.feat-body p{color:var(--txt-2);font-size:15.5px;line-height:1.65}
.feat-body .pmeta{margin-top:16px;font-size:13px;color:var(--txt-3)}
@media (max-width:760px){.feat{grid-template-columns:1fr}}
.catbar{display:flex;gap:8px;flex-wrap:wrap;margin:6px 0 22px}
.catbar button{background:var(--surface);border:1px solid var(--line);color:var(--txt-2);font-size:13.5px;font-weight:600;padding:7px 16px;border-radius:999px;cursor:pointer;font-family:var(--font-b)}
.catbar button.on{background:var(--fire-grad);color:#1a0c02;border-color:transparent}
.pcard{padding:0;overflow:hidden}
.pcard .pthumb{width:100%;aspect-ratio:1200/630;object-fit:cover;border-radius:0;display:block;border-bottom:1px solid var(--line)}
.pcard .pbody{padding:20px 22px 22px}
/* related v2 */
.rel-grid a{padding:0;overflow:hidden}
.rel-grid img{width:100%;aspect-ratio:1200/630;object-fit:cover;border-radius:0;display:block;border-bottom:1px solid var(--line)}
.rel-grid .rtag{display:block;font-size:10.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--fire);padding:12px 16px 0}
.rel-grid b{padding:4px 16px 16px}