:root{--coral:#e4572e;--coral-d:#c7431f;--turq:#0e7c7b;--turq-d:#0a5f5e;--cream:#fff9f2;--ink:#2d2a26;--muted:#6f6a61;--line:#f0e2d0;--gold:#ffb703;--rad:16px;--shadow:0 10px 30px rgba(90,50,10,.10)}
*{box-sizing:border-box}
body{margin:0;font-family:'Segoe UI',system-ui,-apple-system,Roboto,Arial,sans-serif;background:var(--cream);color:var(--ink);line-height:1.7;font-size:17px}
h1,h2,h3,.logo,.display{font-family:Georgia,'Palatino Linotype','Book Antiqua',serif;letter-spacing:-.3px}
a{color:var(--turq-d);text-decoration:underline;text-underline-offset:2px}
a:hover{color:var(--coral-d)}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
header.site{position:sticky;top:0;z-index:60;background:rgba(255,249,242,.97);border-bottom:2px solid var(--line)}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:10px 0;flex-wrap:wrap}
.logo{font-size:25px;font-weight:800;color:var(--ink);text-decoration:none}
.logo em{font-style:normal;color:var(--coral)}
.logo .dot{color:var(--turq)}
nav.main{display:flex;flex-wrap:wrap;gap:2px;align-items:center}
nav.main a{padding:8px 12px;border-radius:999px;text-decoration:none;color:var(--ink);font-size:15px;font-weight:600;transition:background .2s,color .2s}
nav.main a:hover,nav.main a.act{background:#ffe8d9;color:var(--coral-d)}
.cta-btn{background:var(--coral);color:#fff!important;border-radius:999px;padding:9px 18px!important}
.cta-btn:hover{background:var(--coral-d)}
.crumbs{font-size:14px;color:var(--muted);padding:14px 0 0}
.crumbs a{color:var(--muted)}
/* hero */
.hero2{background:linear-gradient(120deg,#fff3e2,#ffe8d9 45%,#dff3f2);border-bottom:3px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center;padding:44px 0 48px}
.hero-grid h1{font-size:42px;line-height:1.12;margin:0 0 16px}
.hero-grid .sub{font-size:19px;color:#4c463e;margin:0 0 24px;max-width:540px}
.btnrow{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 24px;border-radius:999px;font-weight:700;text-decoration:none;transition:transform .15s,background .2s}
.btn:hover{transform:translateY(-2px)}
.btn-a{background:var(--coral);color:#fff}
.btn-a:hover{background:var(--coral-d);color:#fff}
.btn-b{background:#fff;color:var(--turq-d);border:2px solid var(--turq)}
.trustline{margin-top:18px;font-size:14.5px;color:var(--muted)}
.hero-art{filter:drop-shadow(0 18px 28px rgba(120,60,10,.18))}
.statsband{background:var(--ink);color:#fff}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;padding:26px 0;text-align:center}
.stats b{display:block;font-size:32px;color:var(--gold);font-family:Georgia,serif}
.stats span{font-size:14.5px;color:#e8e2d8}
section.block{padding:46px 0 8px}
section.band-coral{background:linear-gradient(120deg,#ffe8d9,#fdf3e3)}
section.band-turq{background:#e6f4f3}
section.band-ink{background:#2d2a26;color:#f3ede3}
section.band-ink h2,section.band-ink h3{color:#fff}
.kicker{text-transform:uppercase;letter-spacing:2px;font-size:13px;font-weight:800;color:var(--coral)}
h2.sec{font-size:31px;line-height:1.25;margin:6px 0 10px}
p.lead{font-size:18.5px;color:#4c463e;max-width:780px}
.cardgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;margin:24px 0 30px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--rad);overflow:hidden;box-shadow:var(--shadow);transition:transform .18s}
.card:hover{transform:translateY(-4px)}
.card .thumb{aspect-ratio:16/9;overflow:hidden;background:#f6e8d8}
.card .thumb img{width:100%;height:100%;object-fit:cover;display:block}
.card .thumb .spot{width:100%;height:100%;display:flex;align-items:center;justify-content:center}
.card .thumb .spot svg{width:88px;height:88px}
.card .body{padding:18px 20px 20px}
.card h3{margin:0 0 7px;font-size:20px;line-height:1.3}
.card h3 a{text-decoration:none;color:var(--ink)}
.card h3 a:hover{color:var(--coral-d)}
.card p{font-size:15.5px;color:#4c463e;margin:0}
.chip{display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.6px;text-transform:uppercase;color:#fff;border-radius:999px;padding:3px 11px;margin-bottom:10px}
.icongrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin:22px 0 30px}
.iconcard{background:#fff;border:1px solid var(--line);border-radius:var(--rad);padding:24px;box-shadow:var(--shadow)}
.iconcard .ic{width:58px;height:58px;border-radius:16px;display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.iconcard .ic svg{width:38px;height:38px}
.iconcard h3{margin:0 0 6px;font-size:19px}
.iconcard p{margin:0;font-size:15.5px;color:#4c463e}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px;margin:22px 0 30px}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--rad);padding:22px;position:relative;box-shadow:var(--shadow)}
.step .num{position:absolute;top:-16px;left:18px;background:var(--coral);color:#fff;font-weight:800;font-family:Georgia,serif;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px}
.step h3{margin:8px 0 6px;font-size:18.5px}
.step p{margin:0;font-size:15.5px;color:#4c463e}
.ba{display:grid;grid-template-columns:1fr auto 1fr;gap:18px;align-items:stretch;margin:22px 0 30px}
.ba .side{border-radius:var(--rad);padding:24px;border:1px dashed #cbb894;background:#fdf6ea}
.ba .side.after{border:2px solid var(--turq);background:#eafaf6}
.ba .arrow{align-self:center;font-size:34px;color:var(--coral);font-weight:800}
.ba h3{margin-top:0}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:15px 19px;margin-bottom:10px;box-shadow:0 3px 10px rgba(90,50,10,.05)}
.faq summary{font-weight:700;cursor:pointer;font-size:16.5px}
.faq details p{margin:10px 0 2px}
.ctaband{background:linear-gradient(120deg,var(--coral),#c2438f);color:#fff;border-radius:24px;padding:34px 36px;margin:40px 0;display:flex;gap:24px;align-items:center;flex-wrap:wrap}
.ctaband h2{margin:0 0 8px;color:#fff;font-size:28px}
.ctaband p{margin:0;max-width:560px}
.ctaband .btn{background:#fff;color:var(--coral-d);margin-left:auto}
footer.site{background:#241f1c;color:#e8e2d8;margin-top:56px}
.foot{padding:42px 0 26px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.foot h4{margin:0 0 12px;color:#fff;font-size:16px;font-family:Georgia,serif}
.foot ul{list-style:none;padding:0;margin:0}
.foot li{margin-bottom:7px;font-size:15px}
footer.site a{color:#ffd9a8}
.copyright{border-top:1px solid #453e37;padding:16px 0;font-size:14px;color:#b7b0a4}
/* article */
.artband{color:#fff;padding:34px 0 30px;margin-top:0}
.artband .wrap{display:flex;gap:20px;align-items:center}
.artband .ic{flex:0 0 74px;width:74px;height:74px;border-radius:20px;background:rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center}
.artband .ic svg{width:52px;height:52px;color:#fff}
.artband h1{font-size:clamp(1.7rem,3.2vw,2.1rem);line-height:1.15;margin:0;color:#fff}
.col-main>.artband{border-radius:var(--rad)}
.artband .hubname{font-size:13.5px;font-weight:800;letter-spacing:1.6px;text-transform:uppercase;opacity:.92}
article.page{max-width:780px;margin:0 auto;padding:0 20px}
.byline{display:flex;flex-wrap:wrap;gap:6px 18px;font-size:14px;color:var(--muted);border-bottom:1px solid var(--line);padding:16px 0 14px;margin-bottom:6px}
figure.hero-img{margin:22px 0}
figure.hero-img img{width:100%;height:auto;border-radius:var(--rad);display:block;box-shadow:var(--shadow)}
figcaption{font-size:14px;color:var(--muted);margin-top:8px;text-align:center}
.summary{background:#fff;border:1px solid var(--line);border-left:6px solid var(--coral);border-radius:12px;padding:18px 22px;margin:20px 0 26px;box-shadow:var(--shadow)}
.summary strong{color:var(--coral-d)}
.toc{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 22px;margin:0 0 26px}
.toc p{font-weight:700;margin:0 0 8px}
.toc ol{margin:0}
article.page h2{font-size:26px;line-height:1.3;margin:36px 0 12px}
article.page h3{font-size:20.5px;margin:26px 0 8px}
article.page p{margin:0 0 16px}
article.page ul,article.page ol{margin:0 0 16px}
.tipcard{background:linear-gradient(120deg,#fff7e8,#fdf3e3);border:1.5px solid #f0cf8e;border-radius:var(--rad);padding:22px 26px;margin:30px 0}
.tipcard h2{margin-top:0;color:#9a6b12}
.callout{background:#eafaf6;border-left:6px solid var(--turq);border-radius:10px;padding:16px 20px;margin:22px 0}
.note{background:#fff7e8;border:1px solid #f3ddab;border-radius:12px;padding:14px 18px;margin:22px 0}
.partof{background:#fff;border:1.5px solid var(--line);border-radius:12px;padding:15px 19px;margin:30px 0;font-size:15.5px;box-shadow:var(--shadow)}
.prevnext{display:flex;justify-content:space-between;gap:12px;margin:26px 0;flex-wrap:wrap}
.prevnext a{font-weight:700}
/* format retrofit v1 */
.vistazo{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;box-shadow:var(--shadow);margin:0 0 26px;font-size:15.5px}
.vistazo caption{text-align:left;font-family:Georgia,serif;font-weight:700;font-size:19px;padding:14px 20px 4px;color:var(--ink)}
.vistazo th{text-align:left;font-weight:800;color:var(--coral-d);padding:9px 20px 9px;width:180px;vertical-align:top;border-top:1px solid var(--line);white-space:nowrap}
.vistazo td{padding:9px 20px 9px 0;border-top:1px solid var(--line);color:#4c463e}
.contador{display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:1.4px;text-transform:uppercase;color:#fff;background:var(--turq);border-radius:999px;padding:3px 12px;margin:26px 0 0}
h2.parte{border-top:3px solid var(--line);padding-top:22px}
h2.parte .partek{display:block;font-family:'Segoe UI',system-ui,sans-serif;font-size:13px;font-weight:800;letter-spacing:1.6px;text-transform:uppercase;color:var(--coral);margin-bottom:4px}
.consejo{background:#eafaf6;border-left:6px solid var(--turq);border-radius:10px;padding:13px 18px;margin:18px 0;font-size:16px}
.consejo strong{color:var(--turq-d)}
.advertencias{background:#fdf0ec;border:1.5px solid #e8a08c;border-radius:var(--rad);padding:20px 26px;margin:30px 0}
.advertencias h2{margin-top:0;color:#a83c14}
.advertencias ul{margin-bottom:0}
.resumenbox{background:#fff;border:1px solid var(--line);border-left:6px solid var(--turq);border-radius:12px;padding:18px 22px;margin:30px 0;box-shadow:var(--shadow)}
.resumenbox h2{margin-top:0;font-size:22px}
.resumenbox p{margin-bottom:0}
.authorbox{display:flex;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--rad);padding:20px 24px;margin:30px 0;box-shadow:var(--shadow);align-items:flex-start}
.authorbox .ava{flex:0 0 56px;width:56px;height:56px;border-radius:50%;background:linear-gradient(120deg,var(--coral),#c2438f);color:#fff;font-family:Georgia,serif;font-weight:700;font-size:22px;display:flex;align-items:center;justify-content:center}
.authorbox h2{margin:0 0 6px;font-size:20px}
.authorbox p{margin:0;font-size:15.5px;color:#4c463e}
/* one-sidebar article layout (standard v2) */
article.page:has(> .layout2){max-width:1240px}
.layout2{display:grid;grid-template-columns:1fr;gap:26px;align-items:start}
.sidebar{display:flex;flex-direction:column;gap:20px;min-width:0}
.sidebar .toc{margin:0}
details.toc summary{font-weight:700;cursor:pointer;font-size:16.5px;font-family:Georgia,serif}
details.toc ol{margin-top:8px}
.authorcard{display:flex;gap:12px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;box-shadow:var(--shadow)}
.authorcard .ava{flex:0 0 44px;width:44px;height:44px;border-radius:50%;background:linear-gradient(120deg,var(--coral),#c2438f);color:#fff;font-family:Georgia,serif;font-weight:700;font-size:17px;display:flex;align-items:center;justify-content:center}
.authorcard .aname{font-weight:800;margin:0;font-size:16px}
.authorcard .arole{margin:0;font-size:13.5px;color:var(--muted)}
.authorcard a{font-size:14px;font-weight:700}
.clusternav{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 14px;box-shadow:var(--shadow)}
.clusternav h3{margin:0 6px 10px;font-size:18px}
.clusternav ul{list-style:none;margin:0;padding:0}
.clusternav a{display:block;padding:6px 10px;border-radius:8px;text-decoration:none;color:#4c463e;font-size:14.5px;line-height:1.45}
.clusternav a:hover{background:#fdf3e3}
.clusternav a.act{background:#ffe8d9;color:var(--coral-d);font-weight:700}
.clusternav a.hub-link{font-weight:800;color:var(--ink);font-size:15px}
.railmod h3{font-size:19px;margin:0 0 4px}
.sidebar .cardgrid{grid-template-columns:1fr;gap:14px;margin:10px 0 0}
.sidebar .card .body{padding:12px 15px 14px}
.sidebar .card h3{font-size:16.5px;margin:0 0 5px}
.sidebar .card p{font-size:14px}
.mostread{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;box-shadow:var(--shadow)}
.mostread h3{margin:0 0 8px;font-size:18px}
.mostread ol{margin:0;padding-left:20px}
.mostread li{margin-bottom:7px;font-size:15px}
.ctacard{background:linear-gradient(120deg,var(--coral),#c2438f);color:#fff;border-radius:var(--rad);padding:20px 22px}
.ctacard h3{margin:0 0 8px;color:#fff;font-size:19px}
.ctacard p{margin:0 0 14px;font-size:15px}
.ctacard .btn{background:#fff;color:var(--coral-d)}
@media(min-width:1100px){
.layout2{grid-template-columns:minmax(0,1fr) 320px}
.sidebar{position:sticky;top:92px;align-self:start}
}
@media(max-width:1099px){
.sidebar{display:contents}
.layout2 > .col-main{order:1}
.layout2 > .sidebar > *{order:2}
.layout2 > .sidebar > details.toc{order:0}
}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr}.hero-grid h1{font-size:32px}.ba{grid-template-columns:1fr}.ba .arrow{transform:rotate(90deg);justify-self:center}.foot{grid-template-columns:1fr 1fr}}