/* Proyector Clave: mobile-first, system fonts, no external requests */
:root{
  --ink:#152033;--ink-2:#3b4a63;--muted:#5d6b82;--line:#dfe5ee;--bg:#ffffff;--bg-2:#f5f7fb;--bg-3:#eef2f8;
  --navy:#12203a;--navy-2:#1d3157;--accent:#ffb627;--accent-ink:#7a4f00;--link:#0b5cad;--link-h:#073f78;
  --ok:#1f8a5b;--warn:#a65b00;--danger:#b42318;--radius:14px;--shadow:0 1px 2px rgba(18,32,58,.06),0 4px 16px rgba(18,32,58,.06);
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:84px}
body{margin:0;font-family:var(--font);font-size:1.0625rem;line-height:1.65;color:var(--ink);background:var(--bg);text-rendering:optimizeLegibility}
img,svg{max-width:100%}
a{color:var(--link);text-underline-offset:.18em;text-decoration-thickness:1px}
a:hover{color:var(--link-h);text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
h1,h2,h3,h4{line-height:1.22;color:var(--navy);letter-spacing:-.01em}
h1{font-size:clamp(1.75rem,5.2vw,2.6rem);margin:.2em 0 .35em}
h2{font-size:clamp(1.35rem,3.6vw,1.7rem);margin:2em 0 .6em}
h3{font-size:1.18rem;margin:1.6em 0 .5em}
p{margin:0 0 1em}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.skip{position:absolute;left:-999px;top:0;background:var(--navy);color:#fff;padding:.6em 1em;z-index:100}
.skip:focus{left:8px;top:8px}
.wrap{max-width:1180px;margin:0 auto;padding:0 18px}
.narrow{max-width:820px}
.ic{width:22px;height:22px;flex:none}
.ic-s{width:16px;height:16px;vertical-align:-3px;color:var(--ok)}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:8px;height:62px}
.logo{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--navy);font-weight:600;font-size:1.15rem;margin-right:auto}
.logo b,.footer-brand b{color:#c98a00;font-weight:800}
.top-links{display:none;gap:4px}
.top-links a{padding:8px 12px;border-radius:10px;text-decoration:none;color:var(--ink-2);font-weight:550}
.top-links a:hover{background:var(--bg-3);color:var(--navy)}
.icon-btn{display:inline-flex;align-items:center;gap:8px;min-height:44px;min-width:44px;justify-content:center;border:1px solid var(--line);background:#fff;border-radius:12px;color:var(--navy);font:inherit;font-weight:600;cursor:pointer;padding:0 12px}
.icon-btn:hover{background:var(--bg-3)}
.bars,.bars::before,.bars::after{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative;transition:transform .2s}
.bars::before,.bars::after{content:"";position:absolute;left:0}
.bars::before{top:-6px}.bars::after{top:6px}
[aria-expanded=true] .bars{background:transparent}
[aria-expanded=true] .bars::before{transform:translateY(6px) rotate(45deg)}
[aria-expanded=true] .bars::after{transform:translateY(-6px) rotate(-45deg)}
.menu-label{display:none}
.menu-panel,.search-panel{border-top:1px solid var(--line);background:#fff;max-height:calc(100vh - 62px);overflow:auto;box-shadow:0 12px 30px rgba(18,32,58,.12)}
.menu-grid{list-style:none;margin:0;padding:14px 0 18px;display:grid;grid-template-columns:1fr;gap:4px}
.menu-grid a{display:flex;gap:12px;align-items:center;padding:11px 12px;border-radius:10px;text-decoration:none;color:var(--ink);font-weight:550}
.menu-grid a:hover,.menu-grid a[aria-current]{background:var(--bg-3);color:var(--navy)}
.menu-grid .ic{color:#c98a00}
.search-panel .wrap{padding-top:14px;padding-bottom:16px}
.search-form{display:flex;gap:8px}
.search-form input{flex:1;min-width:0;font:inherit;padding:12px 14px;border:1.5px solid #c5cfdd;border-radius:12px;background:#fff;color:var(--ink)}
.search-form input:focus{border-color:var(--navy-2);outline:none;box-shadow:0 0 0 3px rgba(255,182,39,.45)}
.search-form button{font:inherit;font-weight:650;border:0;border-radius:12px;padding:0 18px;background:var(--navy);color:#fff;cursor:pointer;min-height:46px}
.search-results{list-style:none;margin:10px 0 0;padding:0}
.search-results li a{display:block;padding:10px 12px;border-radius:10px;text-decoration:none;color:var(--ink)}
.search-results li a:hover,.search-results li a:focus{background:var(--bg-3)}
.search-results strong{display:block;color:var(--navy)}
.search-results small{color:var(--muted)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 18px;border-radius:12px;background:var(--navy);color:#fff;text-decoration:none;font-weight:650;border:2px solid var(--navy);cursor:pointer;font:inherit;font-weight:650;line-height:1.2;text-align:center}
.btn:hover{background:var(--navy-2);color:#fff;text-decoration:none}
.btn-ghost{background:transparent;color:var(--navy)}
.btn-ghost:hover{background:var(--bg-3);color:var(--navy)}
.btn-lg{min-height:52px;padding:12px 22px;font-size:1.05rem}
.btn-small{min-height:40px;padding:8px 14px;font-size:.95rem}
.btn-accent{background:var(--accent);border-color:var(--accent);color:var(--navy)}

/* Hero */
.hero{background:radial-gradient(1200px 400px at 85% 10%,rgba(255,182,39,.18),transparent 60%),linear-gradient(180deg,#f3f6fb,#fff);border-bottom:1px solid var(--line)}
.hero-inner{display:grid;gap:12px;padding:34px 18px 30px}
.hero h1{font-size:clamp(1.9rem,6vw,3rem);margin:.15em 0 .4em}
.hero-lead{font-size:1.12rem;color:var(--ink-2);max-width:40em}
.hero-cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.hero-art{display:none}
.kicker{text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;font-weight:700;color:var(--accent-ink);margin:0}
.kicker a{color:inherit;text-decoration:none}

/* Home sections */
.symptoms{margin:26px 0 8px;padding:20px;background:var(--navy);border-radius:var(--radius);color:#fff}
.symptoms h2{color:#fff;margin:0 0 12px;font-size:1.3rem}
.chips{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.chips a{display:inline-block;padding:9px 14px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);color:#fff;text-decoration:none;font-weight:550;font-size:.97rem}
.chips a:hover{background:var(--accent);color:var(--navy);border-color:var(--accent)}
.section-h{margin-top:1.8em}
.topics{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr;gap:10px}
.topics a{display:grid;grid-template-columns:auto 1fr;column-gap:12px;padding:14px 16px;border:1px solid var(--line);border-radius:var(--radius);text-decoration:none;color:var(--ink);background:#fff;height:100%}
.topics a:hover{border-color:#b9c6da;box-shadow:var(--shadow)}
.topics .ic{grid-row:span 2;color:#c98a00;margin-top:2px}
.t-name{font-weight:700;color:var(--navy)}
.t-desc{font-size:.95rem;color:var(--muted)}
.cards{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr;gap:12px}
.card a{display:flex;flex-direction:column;gap:6px;height:100%;padding:16px 18px;border:1px solid var(--line);border-radius:var(--radius);text-decoration:none;color:var(--ink);background:#fff;transition:box-shadow .15s,border-color .15s}
.card a:hover{border-color:#b9c6da;box-shadow:var(--shadow)}
.card-title{font-weight:700;color:var(--navy);line-height:1.3}
.card-text{font-size:.95rem;color:var(--muted);line-height:1.5}
.card-tool .ic{color:#c98a00}
.trust{margin:40px 0 50px;padding:24px 20px;border-radius:var(--radius);background:var(--bg-2);border:1px solid var(--line)}
.trust h2{margin-top:0}
.trust-grid{display:grid;gap:8px 24px}
.trust h3{margin:.6em 0 .3em;font-size:1.05rem}
.trust p{color:var(--ink-2);font-size:.98rem}
.topic-chips{list-style:none;padding:0;margin:0 0 50px;display:flex;flex-wrap:wrap;gap:8px}
.topic-chips a{display:inline-flex;gap:8px;align-items:center;padding:8px 12px;border:1px solid var(--line);border-radius:999px;text-decoration:none;color:var(--ink-2);font-size:.95rem}
.topic-chips a:hover{background:var(--bg-3)}
.topic-chips .ic{width:18px;height:18px;color:#c98a00}

/* Article */
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:4px;padding:0;margin:16px 0 6px;font-size:.9rem;color:var(--muted)}
.crumbs li+li::before{content:"›";margin:0 6px 0 2px;color:#9aa6b8}
.crumbs a{color:var(--muted)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:28px}
.article{min-width:0}
.article-head{margin-bottom:14px}
.meta{font-size:.92rem;color:var(--muted);margin:0}
.meta a{color:var(--muted)}
.hub-head{margin:6px 0 10px}
.toc{max-width:46rem;border:1px solid var(--line);border-radius:var(--radius);background:var(--bg-2);padding:12px 16px;margin:18px 0 8px}
.toc summary{font-weight:700;color:var(--navy);cursor:pointer;min-height:28px}
.toc ol{margin:8px 0 2px;padding-left:1.3em;font-size:.97rem}
.toc li{margin:4px 0}
.toc a{color:var(--ink-2);text-decoration:none}
.toc a:hover{color:var(--link);text-decoration:underline}
.prose{max-width:46rem}
.prose ul,.prose ol{padding-left:1.35em;margin:0 0 1.1em}
.prose li{margin:.3em 0}
.prose li::marker{color:#8a97ab}
.prose strong{color:#0f1a2c}
.prose code{font-family:var(--mono);font-size:.9em;background:var(--bg-3);padding:.1em .35em;border-radius:6px}
.prose kbd{font-family:var(--mono);font-size:.85em;border:1px solid #c5cfdd;border-bottom-width:2px;border-radius:6px;padding:.05em .4em;background:#fff}
.prose blockquote{margin:1.2em 0;padding:.4em 1em;border-left:4px solid var(--line);color:var(--ink-2)}
.answer{background:#fff8e6;border:1px solid #ffe2a3;border-left:5px solid var(--accent);border-radius:12px;padding:14px 18px;margin:8px 0 22px}
.answer p{margin:0;font-size:1.06rem}
.answer strong{color:var(--accent-ink)}
.callout{border-radius:12px;padding:14px 18px;margin:1.3em 0;border:1px solid var(--line);background:var(--bg-2)}
.callout p:last-child,.callout ul:last-child{margin-bottom:0}
.callout.tip{background:#eef8f3;border-color:#c5e8d6}
.callout.tip strong:first-child{color:var(--ok)}
.callout.warn{background:#fff6ea;border-color:#f6d5a8}
.callout.warn strong:first-child{color:var(--warn)}
.callout.danger{background:#fff0ee;border-color:#f5c2bc}
.callout.danger strong:first-child{color:var(--danger)}
.callout.insight{background:#eef3fb;border-color:#c9d7ee;border-left:5px solid var(--navy-2)}
.callout.insight strong:first-child{color:var(--navy-2)}
ol.steps{list-style:none;counter-reset:s;padding:0}
ol.steps>li{counter-increment:s;position:relative;padding:2px 0 12px 48px;margin:0 0 6px;border-left:2px solid var(--line);margin-left:16px;padding-left:34px}
ol.steps>li:last-child{border-left-color:transparent}
ol.steps>li::before{content:counter(s);position:absolute;left:-17px;top:0;width:32px;height:32px;border-radius:50%;background:var(--navy);color:#fff;font-weight:700;font-size:.92rem;display:flex;align-items:center;justify-content:center}
.table-wrap{overflow-x:auto;margin:1.2em 0 1.5em;border:1px solid var(--line);border-radius:12px;-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;font-size:.95rem;min-width:520px}
caption{caption-side:top;text-align:left;padding:12px 14px;font-size:.9rem;color:var(--muted);background:var(--bg-2);border-bottom:1px solid var(--line)}
th,td{padding:10px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
thead th{background:var(--bg-3);color:var(--navy);font-weight:700;white-space:nowrap}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}
tbody th{font-weight:650;color:var(--navy)}
table.data td{white-space:nowrap}
table small{color:var(--muted)}
.faq details{border:1px solid var(--line);border-radius:12px;margin:10px 0;background:#fff}
.faq summary{cursor:pointer;padding:14px 44px 14px 16px;font-weight:650;color:var(--navy);list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:16px;top:10px;font-size:1.4rem;color:#8a97ab}
.faq details[open] summary::after{content:"−"}
.faq details p{padding:0 16px;margin:0 0 14px}
.sources{margin-top:2.2em;font-size:.93rem;color:var(--ink-2)}
.sources h2{font-size:1.15rem}
.feedback{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin:34px 0 10px;padding:16px 18px;border:1px dashed #c5cfdd;border-radius:var(--radius);max-width:46rem}
.feedback p{margin:0;flex:1 1 260px;font-size:.96rem}
.prevnext{display:grid;gap:10px;margin:20px 0 10px;max-width:46rem}
.prevnext a{display:block;padding:12px 16px;border:1px solid var(--line);border-radius:12px;text-decoration:none;color:var(--navy);font-weight:600}
.prevnext a:hover{background:var(--bg-2)}
.prevnext small{display:block;color:var(--muted);font-weight:500}
.prevnext .next{text-align:right}
.related{margin:20px 0 50px}
.sidebar{display:none}
.side-box{border:1px solid var(--line);border-radius:var(--radius);padding:16px;margin-bottom:16px;background:#fff}
.side-h{font-weight:700;color:var(--navy);margin-bottom:6px}
.side-box p{font-size:.95rem;color:var(--ink-2)}
.side-list{list-style:none;padding:0;margin:0;font-size:.93rem}
.side-list li{margin:2px 0}
.side-list a{display:block;padding:5px 8px;border-radius:8px;color:var(--ink-2);text-decoration:none;line-height:1.35}
.side-list a:hover{background:var(--bg-3)}
.side-list a[aria-current]{background:var(--bg-3);color:var(--navy);font-weight:650}

/* Glossary */
.az{display:flex;flex-wrap:wrap;gap:6px;margin:10px 0 20px}
.az a{display:inline-flex;min-width:38px;min-height:38px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:10px;text-decoration:none;font-weight:700;color:var(--navy)}
.az a:hover{background:var(--bg-3)}
dl.glossary dt{font-weight:700;color:var(--navy);margin-top:1em;font-size:1.06rem}
dl.glossary dd{margin:.2em 0 .6em;color:var(--ink-2)}
dl.glossary dt:target{background:#fff1cc;border-radius:6px}

/* Tools */
.tool{border:1px solid #c9d7ee;background:linear-gradient(180deg,#f6f9fe,#fff);border-radius:16px;padding:18px;margin:10px 0 26px}
.tool h2:first-child,.tool h3:first-child{margin-top:0}
.form-grid{display:grid;grid-template-columns:1fr;gap:12px}
.field label,.field .lbl{display:block;font-weight:650;color:var(--navy);font-size:.95rem;margin-bottom:4px}
.field small{display:block;color:var(--muted);font-size:.85rem;margin-top:3px}
.field input,.field select,.field textarea{width:100%;font:inherit;padding:11px 12px;border:1.5px solid #c5cfdd;border-radius:10px;background:#fff;color:var(--ink);min-height:46px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--navy-2);outline:none;box-shadow:0 0 0 3px rgba(255,182,39,.45)}
.seg{display:flex;flex-wrap:wrap;gap:6px}
.seg label{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border:1.5px solid #c5cfdd;border-radius:10px;cursor:pointer;font-weight:550;background:#fff;font-size:.95rem;margin:0;color:var(--ink)}
.seg input{accent-color:var(--navy)}
.seg label:has(input:checked){border-color:var(--navy);background:var(--bg-3)}
.results{margin-top:16px;display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
.result{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.result .r-label{display:block;font-size:.82rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.result .r-value{display:block;font-size:1.35rem;font-weight:750;color:var(--navy);font-variant-numeric:tabular-nums}
.result .r-sub{display:block;font-size:.85rem;color:var(--muted)}
.result.hl{background:var(--navy);border-color:var(--navy)}
.result.hl .r-label,.result.hl .r-sub{color:#c9d4e6}.result.hl .r-value{color:#fff}
.tool-note{font-size:.92rem;color:var(--ink-2);margin-top:12px}
.diagram{margin-top:14px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:8px}
.diagram svg{display:block;width:100%;height:auto}
/* Diagnosis wizard */
.wizard-q{font-size:1.2rem;font-weight:700;color:var(--navy);margin:0 0 12px}
.wizard-opts{display:grid;gap:8px;grid-template-columns:1fr}
.wizard-opts button{text-align:left;font:inherit;padding:13px 16px;border:1.5px solid #c5cfdd;border-radius:12px;background:#fff;color:var(--ink);cursor:pointer;font-weight:550;min-height:50px}
.wizard-opts button:hover,.wizard-opts button:focus-visible{border-color:var(--navy);background:var(--bg-3)}
.wizard-opts button small{display:block;color:var(--muted);font-weight:400;font-size:.88rem}
.wizard-nav{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.wizard-path{font-size:.88rem;color:var(--muted);margin-bottom:10px}
.wizard-result h3{margin-top:0}
.wizard-result ol{padding-left:1.3em}
.pattern-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.pattern-grid button{font:inherit;border:1.5px solid #c5cfdd;border-radius:12px;background:#fff;padding:8px;cursor:pointer;text-align:center;color:var(--ink);font-weight:600;font-size:.92rem}
.pattern-grid button:hover{border-color:var(--navy)}
.pattern-grid canvas{display:block;width:100%;aspect-ratio:16/9;border-radius:8px;margin-bottom:6px;background:#000}
.pattern-stage{position:fixed;inset:0;z-index:200;background:#000;cursor:none}
.pattern-stage canvas{width:100%;height:100%;display:block}
.pattern-hint{position:fixed;left:50%;bottom:18px;transform:translateX(-50%);z-index:201;background:rgba(0,0,0,.7);color:#fff;padding:8px 14px;border-radius:10px;font-size:.9rem;transition:opacity .4s}
.form-ok{background:#eef8f3;border:1px solid #c5e8d6;padding:14px 18px;border-radius:12px}
.hp{position:absolute;left:-5000px}

/* Footer */
.site-footer{background:var(--navy);color:#c9d4e6;margin-top:30px;font-size:.95rem}
.site-footer a{color:#e9eef7;text-decoration:none}
.site-footer a:hover{text-decoration:underline;color:#fff}
.footer-grid{display:grid;gap:22px;padding:38px 18px 20px}
.footer-grid ul{list-style:none;margin:0;padding:0}
.footer-grid li{margin:6px 0}
.footer-brand{font-size:1.25rem;color:#fff;font-weight:600;margin-bottom:6px}
.footer-brand b{color:var(--accent)}
.footer-h{color:#fff;font-weight:700;margin-bottom:8px}
.site-footer .btn{background:var(--accent);border-color:var(--accent);color:var(--navy)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:16px 18px 26px;font-size:.86rem}
.footer-bottom p{margin:.3em 0}
.notfound{padding:40px 18px 20px}
.search-page-form{margin:16px 0}

@media (min-width:640px){
  .menu-grid{grid-template-columns:1fr 1fr}
  .topics,.cards{grid-template-columns:1fr 1fr}
  .form-grid{grid-template-columns:1fr 1fr}
  .trust-grid{grid-template-columns:1fr 1fr}
  .prevnext{grid-template-columns:1fr 1fr}
  .prevnext .next:only-child{grid-column:2}
  .wizard-opts{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (min-width:900px){
  .top-links{display:flex}
  .menu-label{display:inline}
  .menu-grid{grid-template-columns:repeat(3,1fr)}
  .topics{grid-template-columns:repeat(3,1fr)}
  .cards{grid-template-columns:repeat(3,1fr)}
  .cards-compact{grid-template-columns:repeat(3,1fr)}
  .hero-inner{grid-template-columns:1.35fr 1fr;align-items:center;padding:56px 18px 50px}
  .hero-art{display:block;justify-self:end}
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:48px}
  .sidebar{display:block}
  .sidebar>.side-box:last-child{position:sticky;top:84px;max-height:calc(100vh - 100px);overflow:auto}
  .trust-grid{grid-template-columns:repeat(4,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1.2fr 1fr 1fr}
  .symptoms{padding:26px 28px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
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