:root{
  --ink:#13262f; --ink-soft:#3d535d; --paper:#ffffff; --surface:#f3f6f7; --line:#c9d5da;
  --primary:#0b5c73; --primary-dark:#083f50; --ok:#17663a; --ok-bg:#e6f3ea;
  --warn-bg:#fff4d6; --warn-line:#b7791f; --warn-ink:#5c3b00;
  --serif:Georgia,"Times New Roman",serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --wrap:1120px; --read:44rem;
}
*,*::before,*::after{box-sizing:border-box}
html{font-size:100%;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:1.125rem/1.65 var(--sans)}
img{max-width:100%;height:auto}
a{color:var(--primary);text-underline-offset:.18em}
a:hover{color:var(--primary-dark)}
:focus-visible{outline:3px solid var(--primary);outline-offset:3px}
.skip-link{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:.75rem 1rem;z-index:100}
.skip-link:focus{left:0}
.wrap{width:min(100% - 2rem,var(--wrap));margin-inline:auto}
h1,h2,h3{font-family:var(--serif);line-height:1.2;color:var(--ink)}
h1{font-size:clamp(1.9rem,4.5vw,2.8rem);margin:0 0 1rem}
h2{font-size:clamp(1.45rem,3vw,1.9rem);margin:2.2rem 0 .8rem}
h3{font-size:1.25rem;margin:1.6rem 0 .6rem}

/* Aviso de independencia */
.notice-bar{background:var(--surface);border-bottom:1px solid var(--line);font-size:.95rem;padding:.45rem 0;color:var(--ink-soft)}

/* Cabecera */
.site-header{border-bottom:1px solid var(--line);background:var(--paper)}
.site-title{font:700 1.6rem/1 var(--serif);margin:0}
.site-title a{color:var(--ink);text-decoration:none}
.site-title a:hover{color:var(--primary)}


/* Buscador y botones */
.search-form{display:flex;gap:.5rem;max-width:36rem}
.search-form input[type=search]{flex:1;min-height:3.25rem;padding:0 1rem;font:inherit;border:2px solid var(--ink-soft);border-radius:6px;background:#fff;color:var(--ink)}
.btn,.search-form input[type=submit],.search-form button{min-height:3.25rem;padding:0 1.4rem;font:600 1.05rem var(--sans);color:#fff;background:var(--primary);border:2px solid var(--primary);border-radius:6px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center}
.btn:hover,.search-form input[type=submit]:hover,.search-form button:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff}
.btn-quiet{background:#fff;color:var(--primary)}
.btn-quiet:hover{background:var(--surface);color:var(--primary-dark)}

/* Portada */
.hero{padding:3rem 0 2.5rem;background:var(--surface);border-bottom:1px solid var(--line)}
.hero p.lead{font-size:1.25rem;max-width:40rem;color:var(--ink-soft);margin:0 0 1.5rem}
.topics{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:1rem;margin:2rem 0;padding:0;list-style:none}
.topics a{display:block;height:100%;padding:1.1rem 1.2rem;border:1px solid var(--line);border-left:6px solid var(--primary);border-radius:4px;color:var(--ink);text-decoration:none;background:#fff}
.topics a:hover{background:var(--surface)}
.topics strong{display:block;font:700 1.2rem var(--serif);margin-bottom:.25rem}
.topics span{font-size:1rem;color:var(--ink-soft)}
.section{padding:2.5rem 0}
.post-list{list-style:none;margin:0;padding:0}
.post-list li{padding:1.1rem 0;border-bottom:1px solid var(--line)}
.post-list a.title{font:700 1.3rem/1.3 var(--serif);text-decoration:none}
.post-list a.title:hover{text-decoration:underline}
.meta{font-size:.95rem;color:var(--ink-soft);margin:.25rem 0 0}
.tool-cta{background:var(--ok-bg);border:1px solid var(--ok);border-radius:6px;padding:1.4rem;margin:2rem 0}
.tool-cta h2{margin-top:0}

/* Contenido */
.content-area{padding:2rem 0 3rem}
.entry{max-width:var(--read)}
.entry p,.entry li{max-width:68ch}
.entry table{border-collapse:collapse;width:100%;display:block;overflow-x:auto}
.entry th,.entry td{border:1px solid var(--line);padding:.6rem .8rem;text-align:left}
.entry th{background:var(--surface)}
.breadcrumbs{font-size:.95rem;margin:0 0 1rem;color:var(--ink-soft)}
.breadcrumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:.25rem .5rem;margin:0;padding:0}
.breadcrumbs li+li::before{content:"/";margin-right:.5rem;color:var(--ink-soft)}
.review-badge{display:inline-block;background:var(--ok-bg);color:var(--ok);border:1px solid var(--ok);border-radius:4px;padding:.2rem .6rem;font-size:.95rem;font-weight:600}
.sources{background:var(--surface);border-left:6px solid var(--primary);padding:1rem 1.2rem;margin:2rem 0;border-radius:4px}
.sources h2{font-size:1.2rem;margin:0 0 .5rem}
.disclaimer{background:var(--warn-bg);border:1px solid var(--warn-line);color:var(--warn-ink);padding:1rem 1.2rem;border-radius:4px;margin:2rem 0;font-size:1rem}
.pagination{display:flex;gap:1rem;margin-top:2rem}

/* Calculadora */
.calc{background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:1.4rem;margin:1.5rem 0}
.calc label{display:block;font-weight:600;margin:1rem 0 .3rem}
.calc input{min-height:3rem;width:100%;max-width:18rem;padding:0 .8rem;font:inherit;border:2px solid var(--ink-soft);border-radius:6px}
.calc .row{display:flex;flex-wrap:wrap;gap:1rem}
.calc .row>div{flex:0 1 9rem}
.calc button{margin-top:1.2rem}
.calc-result{margin-top:1.2rem;padding:1rem 1.2rem;background:#fff;border:2px solid var(--primary);border-radius:6px}
.calc-result[hidden]{display:none}
.calc-error{color:#8a1c1c;font-weight:600}

/* Pie */
.site-footer{background:var(--ink);color:#e8eef0;padding:2.5rem 0;margin-top:2rem;font-size:1rem}
.site-footer a{color:#fff}
.site-footer ul{list-style:none;margin:.5rem 0 0;padding:0;display:flex;flex-wrap:wrap;gap:.5rem 1.5rem}
.site-footer .independence{max-width:48rem;margin:1.2rem 0 0}

@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media (max-width:600px){body{font-size:1.0625rem}.search-form{flex-direction:column}}
.sr-only{position:absolute;left:-999px}
.results li{padding:1rem 0;border-bottom:1px solid var(--line);list-style:none}
.results{padding:0;margin:1.5rem 0}

/* Cabecera fija con menú superior */
.site-header{position:sticky;top:0;z-index:50;box-shadow:0 1px 0 var(--line)}
.top-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.6rem 2rem;padding:.8rem 0 .4rem}
.header-search{display:flex;gap:.4rem;flex:0 1 26rem;min-width:14rem}
.header-search input{flex:1;min-height:2.75rem;padding:0 .8rem;font:inherit;font-size:1rem;border:2px solid var(--ink-soft);border-radius:6px;min-width:0}
.header-search button{min-height:2.75rem;padding:0 1rem;font:600 1rem var(--sans);color:#fff;background:var(--primary);border:2px solid var(--primary);border-radius:6px;cursor:pointer}
.header-search button:hover{background:var(--primary-dark)}
.main-nav{background:var(--primary-dark)}
.main-nav ul{list-style:none;display:flex;flex-wrap:wrap;margin:0;padding:0}
.main-nav a{display:block;padding:.75rem 1.1rem;color:#fff;font-weight:600;text-decoration:none;border-bottom:4px solid transparent;font-size:1.05rem}
.main-nav a:hover{background:rgba(255,255,255,.12);color:#fff}
.main-nav a[aria-current=page]{border-bottom-color:#fff}
.main-nav a:focus-visible{outline-color:#fff;outline-offset:-3px}

/* Portada: bloques de información */
.intro-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(18rem,1fr));gap:1.5rem;margin:2rem 0}
.intro-grid>div{border-top:4px solid var(--primary);padding-top:.6rem}
.intro-grid h3{margin-top:.4rem}
.featured{display:grid;grid-template-columns:repeat(auto-fit,minmax(17rem,1fr));gap:1rem;list-style:none;margin:1.2rem 0;padding:0}
.featured a{display:block;height:100%;padding:1.1rem 1.2rem;border:1px solid var(--line);border-radius:6px;text-decoration:none;color:var(--ink);background:#fff}
.featured a:hover{background:var(--surface)}
.featured strong{display:block;font:700 1.2rem/1.3 var(--serif);color:var(--primary);margin-bottom:.35rem}
.featured span{font-size:1rem;color:var(--ink-soft)}
.faq details{border:1px solid var(--line);border-radius:6px;padding:.2rem 1.1rem;margin:.6rem 0;background:#fff}
.faq summary{font-weight:600;cursor:pointer;padding:.75rem 0;min-height:44px}
.faq details[open] summary{color:var(--primary)}
.group-title{border-bottom:2px solid var(--line);padding-bottom:.3rem}
@media (max-width:600px){.header-search{flex:1 1 100%}.main-nav a{padding:.65rem .8rem;font-size:1rem}}