:root{
  --bg:#f7f8fa;--surface:#fff;--text:#1a1f2b;--muted:#5b6473;--line:#e3e6ea;
  --brand:#0b5fff;--brand-dark:#0747c2;--brand-soft:#e8f0ff;--ok:#1a8f4d;--warn:#b7791f;
  --radius:12px;--shadow:0 1px 2px rgba(20,30,50,.06),0 4px 16px rgba(20,30,50,.05);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;font-size:17px;line-height:1.6;color:var(--text);background:var(--bg)}
a{color:var(--brand)}
h1{font-size:2rem;line-height:1.2;margin:.3em 0 .4em}
h2{font-size:1.4rem;margin:1.6em 0 .5em}
h3{font-size:1.1rem;margin:1.2em 0 .4em}
p{margin:0 0 1em}
.wrap{max-width:1040px;margin:0 auto;padding:0 18px}
main.wrap{padding-block:16px 48px}
.lead{font-size:1.1rem;color:var(--muted);max-width:720px}

/* header */
.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:60px}
.logo{font-weight:700;text-decoration:none;color:var(--text);display:flex;align-items:center;gap:8px;white-space:nowrap}
.logo-mark{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:8px;background:var(--brand);color:#fff;font-weight:800}
.nav{display:flex;gap:18px}
.nav a{text-decoration:none;color:var(--muted);font-weight:500}
.nav a:hover{color:var(--brand)}
.dd{position:relative}
.dd .caret{font-size:.75em;opacity:.7}
.dd-menu{display:none;position:absolute;right:-12px;top:calc(100% - 4px);z-index:20;width:max-content;max-width:min(92vw,720px);background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:0 10px 30px rgba(20,30,50,.15);padding:6px 8px 10px}
.dd::after{content:"";position:absolute;left:0;right:0;top:100%;height:14px}
.dd:hover .dd-menu,.dd:focus-within .dd-menu{display:grid;grid-template-columns:1fr 1fr}
.dd-group{min-width:200px;padding:12px 14px}
.dd-menu strong{display:block;font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin-bottom:6px}
.dd-menu a{display:block;font-size:.95rem;padding:4px 0;color:var(--text)}
.dd-menu a:hover{color:var(--brand)}
@media(max-width:640px){.site-header .wrap{height:auto;flex-wrap:wrap;padding-block:10px 8px;gap:6px}.nav{width:100%;gap:16px;font-size:.95rem}.dd-menu,.dd .caret{display:none!important}}

/* breadcrumbs */
.crumbs{font-size:.88rem;color:var(--muted);margin:6px 0 10px}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--brand)}

/* cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px;margin:12px 0 24px}
.card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;text-decoration:none;color:var(--text);box-shadow:var(--shadow);transition:transform .12s,border-color .12s}
.card:hover{transform:translateY(-2px);border-color:var(--brand)}
.card .icon{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:10px;background:var(--brand-soft);font-size:1.3rem;margin-bottom:10px}
.card h3{margin:0 0 6px;font-size:1.05rem;color:var(--brand-dark)}
.cat{margin-top:8px}
.cat h2{margin:1.2em 0 .3em;font-size:1.25rem}
.cat[hidden]{display:none}
.card[hidden]{display:none}

/* buscador */
.search{margin:18px 0 4px}
.search input{width:100%;font:inherit;font-size:1.05rem;padding:14px 18px 14px 46px;border:1px solid #c9ced6;border-radius:999px;background:var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' fill='none' stroke='%235b6473' stroke-width='2' viewBox='0 0 24 24'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-3.5-3.5'/%3E%3C/svg%3E") 16px center no-repeat;box-shadow:var(--shadow)}
.search input:focus{outline:2px solid var(--brand);border-color:var(--brand)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.noresults{margin:12px 4px 0;color:var(--muted)}

/* ejemplos rápidos */
.presets{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 -4px;font-size:.9rem;color:var(--muted)}
.chip{font:inherit;font-size:.88rem;padding:6px 12px;border-radius:999px;border:1px solid #c9ced6;background:var(--surface);color:var(--text);cursor:pointer}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.on{background:var(--brand);border-color:var(--brand);color:#fff}

/* resumen en lenguaje claro */
.summary{margin-top:18px;background:var(--surface);border-left:4px solid var(--brand);border-radius:10px;padding:14px 18px;font-size:1.08rem;line-height:1.5}
.summary b{color:var(--brand-dark)}
.summary:empty{display:none}
.card p{margin:0;font-size:.92rem;color:var(--muted)}

/* hero */
.hero{padding:28px 0 8px}
.hero h1{font-size:2.4rem;max-width:760px}
@media(max-width:560px){.hero h1{font-size:1.8rem}h1{font-size:1.6rem}}

/* article */
.page{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;box-shadow:var(--shadow);max-width:820px}
@media(max-width:560px){.page{padding:18px 16px}}
.page ul,.page ol{padding-left:1.3em}
.page li{margin-bottom:.4em}
.page table{width:100%;border-collapse:collapse;font-size:.95rem;margin:1em 0}
.page th,.page td{padding:8px 10px;border-bottom:1px solid var(--line);text-align:left}
.page th{background:var(--bg);font-weight:600}
.table-wrap{overflow-x:auto}
.note{background:var(--brand-soft);border-left:4px solid var(--brand);padding:12px 16px;border-radius:8px;margin:1.2em 0}
.faq details{border-bottom:1px solid var(--line);padding:8px 0}
.faq summary{cursor:pointer;font-weight:600}

/* calculator */
.calc{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin:1.2em 0}
.calc .fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.calc label{display:block;font-size:.9rem;font-weight:600;margin-bottom:4px}
.calc .hint{font-weight:400;color:var(--muted);font-size:.82rem}
.calc input,.calc select{width:100%;font:inherit;padding:10px 12px;border:1px solid #c9ced6;border-radius:8px;background:#fff}
.calc input:focus,.calc select:focus{outline:2px solid var(--brand);outline-offset:0;border-color:var(--brand)}
.calc .unit{position:relative}
.calc .unit input{padding-right:40px}
.calc .unit span{position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:.9rem}
.btn{font:inherit;font-weight:600;background:var(--brand);color:#fff;border:0;border-radius:8px;padding:11px 20px;cursor:pointer}
.btn:hover{background:var(--brand-dark)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid #c9ced6}
.btn-ghost:hover{background:#eef0f3}
.actions{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap}
.results{margin-top:18px;display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px}
.result{background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 14px}
.result .k{font-size:.82rem;color:var(--muted);margin:0}
.result .v{font-size:1.45rem;font-weight:700;margin:0;color:var(--brand-dark)}
.result.big{grid-column:1/-1}
.result.big .v{font-size:2rem}
.result .v.ok{color:var(--ok)}
.result .v.warn{color:var(--warn)}
.calc-extra{margin-top:14px}

/* ads */
.ad{margin:22px 0;min-height:90px;text-align:center}

/* related */
.related{margin-top:36px}

/* footer */
.site-footer{border-top:1px solid var(--line);background:var(--surface);color:var(--muted);font-size:.88rem;padding:26px 0}
.site-footer p{margin:0 0 8px}

/* cookies */
.cookie-banner{position:fixed;left:16px;right:16px;bottom:16px;background:#1a1f2b;color:#fff;padding:14px 18px;border-radius:12px;display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap;z-index:50;box-shadow:0 8px 30px rgba(0,0,0,.25)}
.cookie-banner[hidden]{display:none}
.cookie-banner p{margin:0;font-size:.92rem}
.cookie-banner a{color:#9dc0ff}
.cookie-banner .btn-ghost{color:#fff;border-color:#5b6473}
.cookie-banner .btn-ghost:hover{background:#2a3140}

/* mapa de comunidades */
.mapa-title{margin:0 0 6px;font-weight:600;font-size:.95rem}
.mapa{background:#fff;border:1px solid var(--line);border-radius:10px;padding:8px;margin-bottom:14px}
.mapa svg{width:100%;height:auto;display:block;max-height:420px}
.mapa path{fill:#dbe7ff;stroke:#fff;stroke-width:1.5;cursor:pointer;transition:fill .12s}
.mapa path:hover{fill:#9dc0ff}
.mapa path.on{fill:var(--brand)}
.mapa .inset{fill:none;stroke:#c9ced6;stroke-dasharray:4 3;pointer-events:none}