:root{--bg:#fff;--surface:#f4f7fa;--text:#1d2733;--muted:#5b6b7b;--line:#dbe3ea;--accent:#0b5fa5;--accent-ink:#fff;--accent-soft:#e6f0f9;--radius:10px;--shadow:0 1px 3px rgba(20,40,60,.08)}
@media (prefers-color-scheme:dark){:root{--bg:#10171e;--surface:#17212b;--text:#e4eaf0;--muted:#98a8b8;--line:#2a3948;--accent:#6db3ef;--accent-ink:#0b1b29;--accent-soft:#16293a;--shadow:none}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:17px/1.7 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:2px}
a:hover{text-decoration-thickness:2px}
img{max-width:100%;height:auto;border-radius:6px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:var(--bg);padding:.5rem;z-index:10}
.wrap{max-width:1200px;margin:0 auto;padding:0 16px}
header.site{background:var(--bg);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px}
.brand{flex:none;max-width:250px;text-decoration:none;color:var(--text);line-height:1.2}
.brand strong{display:block;font-size:1.25rem;letter-spacing:-.01em}
.brand span{font-size:.8rem;color:var(--muted)}
#nav-toggle{position:absolute;opacity:0;pointer-events:none}
.burger{white-space:nowrap;display:inline-flex;flex:none;align-items:center;gap:8px;padding:8px 12px;border:1px solid var(--line);border-radius:8px;cursor:pointer;font-size:.95rem;user-select:none}
#nav-toggle:focus-visible+.burger{outline:2px solid var(--accent)}
nav.main{display:none;border-top:1px solid var(--line);padding:8px 0 14px}
#nav-toggle:checked~nav.main{display:block}
nav.main ul{list-style:none;margin:0;padding:0}
nav.main>ul>li>a{display:block;padding:10px 4px;font-weight:600;text-decoration:none;color:var(--text)}
nav.main li li a{display:block;padding:6px 4px 6px 18px;font-size:.93rem;text-decoration:none;color:var(--muted)}
nav.main a:hover{color:var(--accent)}
@media(min-width:960px){
.burger{display:none}
nav.main{display:block!important;border:0;padding:0}
nav.main>ul{display:flex;gap:2px;flex-wrap:wrap;justify-content:flex-end}
nav.main>ul>li{position:relative}
nav.main>ul>li>a{padding:22px 9px;font-size:.9rem;white-space:nowrap}
nav.main li.has-sub>ul{display:none;position:absolute;left:0;top:100%;min-width:300px;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 24px rgba(20,40,60,.14);padding:6px}
nav.main li.has-sub:hover>ul,nav.main li.has-sub:focus-within>ul{display:block}
nav.main li li a{padding:8px 12px;border-radius:6px}
nav.main li li a:hover{background:var(--accent-soft)}
}
main{padding:32px 0 56px}
.layout{display:block}
article{max-width:760px;margin:0 auto}
article.page-home{max-width:860px}
h1{font-size:clamp(1.7rem,4vw,2.3rem);line-height:1.2;letter-spacing:-.02em;margin:0 0 .4em}
h2{font-size:1.5rem;line-height:1.3;margin:1.8em 0 .5em}h3{font-size:1.2rem;margin:1.5em 0 .4em}h4{font-size:1.05rem}
.meta{color:var(--muted);font-size:.9rem;margin-bottom:1.5rem;display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center}
.chip{display:inline-block;padding:2px 10px;border-radius:99px;background:var(--accent-soft);color:var(--accent);font-size:.82rem;text-decoration:none}
.chip:hover{text-decoration:underline}
.content p,.content ul,.content ol{margin:0 0 1.1em}
.content ul,.content ol{padding-left:1.4em}
.content li{margin:.25em 0}
.content figure{margin:1.4em auto;text-align:center}
.content figcaption{color:var(--muted);font-size:.88rem;margin-top:.4em}
.content img.alignright,.content figure.alignright{float:right;margin:.3em 0 1em 1.4em;max-width:45%}
.content img.alignleft,.content figure.alignleft{float:left;margin:.3em 1.4em 1em 0;max-width:45%}
.content img.aligncenter,.content figure.aligncenter{display:block;margin-left:auto;margin-right:auto}
.content table{border-collapse:collapse;width:100%;display:block;overflow-x:auto;margin:0 0 1.2em}
.content td,.content th{border:1px solid var(--line);padding:8px 10px;vertical-align:top}
.content th{background:var(--surface)}
.content blockquote{margin:1.2em 0;padding:.6em 1.2em;border-left:4px solid var(--accent);background:var(--surface);border-radius:0 8px 8px 0}
.content iframe{max-width:100%}
.content #derecho,.content .derecho{background:var(--accent-soft);border-radius:var(--radius);padding:14px 18px;margin:1.2em 0}
.content #derecho h3{margin-top:0}
.content::after{content:"";display:block;clear:both}
.content .cards,.cards{padding:0!important;display:grid;gap:14px;list-style:none;padding:0;margin:0 0 1.5rem}
.card{border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;background:var(--surface);box-shadow:var(--shadow)}
.card a.t{font-weight:650;text-decoration:none;color:var(--text);display:block}
.card a.t:hover{color:var(--accent)}
.card small{color:var(--muted)}
.list{list-style:none;padding:0;margin:0}
.list li{padding:10px 0;border-bottom:1px solid var(--line)}
.list a{text-decoration:none;font-weight:550}
.list small{color:var(--muted);margin-left:8px}
.hero{background:var(--accent-soft);border-radius:var(--radius);padding:22px 24px;margin-bottom:1.6rem}
.hero h2{margin:0;font-size:1.25rem;line-height:1.5;font-weight:600}
.sm-cols{columns:1}@media(min-width:760px){.sm-cols{columns:2;column-gap:36px}}
.sm-cols ul{break-inside:avoid}
footer.site{border-top:1px solid var(--line);background:var(--surface);padding:30px 0;color:var(--muted);font-size:.92rem}
footer.site ul{list-style:none;padding:0;margin:0 0 14px;display:flex;flex-wrap:wrap;gap:6px 20px}
footer.site a{color:var(--muted)}footer.site a:hover{color:var(--accent)}
@media print{header.site,footer.site{display:none}}