:root{
  --navy:#001799; --navy2:#2536c8; --navy-deep:#000f5e;
  --accent:#ff7c10; --accent2:#e86d00;
  --ink:#0d1533; --muted:#5a6280; --faint:#8a91ab;
  --line:#e6e9f6; --bg:#fbfcff; --surface:#ffffff; --chip:#eef1ff;
  --good:#0ea86b;
  --sans:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,"SF Mono","Cascadia Code","Roboto Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--navy2);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
.mono{font-family:var(--mono)}
body.es [data-en]{display:none}
body:not(.es) [data-es]{display:none}

/* nav (compartido con la landing) */
header{position:sticky;top:0;z-index:60;background:rgba(251,252,255,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:18px;letter-spacing:-.02em;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand img{width:32px;height:32px;border-radius:9px;display:block}
.nav-cta{display:flex;align-items:center;gap:12px}
.toggle{display:flex;gap:3px;background:var(--chip);border-radius:50px;padding:3px}
.toggle button{border:0;background:transparent;color:var(--muted);border-radius:50px;padding:5px 11px;font-family:var(--mono);font-size:12px;font-weight:700;cursor:pointer;letter-spacing:.04em}
.toggle button.active{background:var(--navy);color:#fff}
.btn{display:inline-flex;align-items:center;gap:8px;border:0;border-radius:12px;padding:11px 18px;font-weight:650;font-size:14.5px;cursor:pointer;white-space:nowrap;transition:.16s}
.btn-accent{background:var(--accent);color:#fff}.btn-accent:hover{background:var(--accent2);text-decoration:none;transform:translateY(-1px)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px}

/* hero del centro de ayuda */
.help-hero{background:radial-gradient(120% 130% at 85% -20%,#3348d6,var(--navy) 55%,var(--navy-deep));color:#fff}
.help-hero .wrap{padding:56px 24px 60px;text-align:center}
.help-hero .eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:#ffb877;font-weight:600}
.help-hero h1{font-size:clamp(30px,4.5vw,44px);font-weight:820;letter-spacing:-.03em;margin:12px 0 0;text-wrap:balance}
.help-hero p{color:#c7cdf2;font-size:18px;max-width:560px;margin:14px auto 0}

/* categorías / índice */
main{padding:56px 0 80px}
.cats{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.cat{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;transition:.18s}
.cat:hover{transform:translateY(-3px);box-shadow:0 18px 40px -22px rgba(13,21,51,.3);border-color:#d4d9f0;text-decoration:none}
.cat .ic{width:44px;height:44px;border-radius:12px;background:var(--chip);color:var(--navy);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.cat .ic svg{width:22px;height:22px}
.cat h2{font-size:18px;font-weight:750;letter-spacing:-.01em;margin:0;color:var(--ink)}
.cat p{color:var(--muted);font-size:14.5px;margin:6px 0 14px}
.cat ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.cat li a{font-size:14.5px;font-weight:550;display:inline-flex;align-items:center;gap:7px}
.cat li a::before{content:"›";color:var(--accent);font-weight:800}
.cat li.soon span{font-size:14.5px;color:var(--faint)}
.cat li.soon span::before{content:"·";color:var(--faint);margin-right:7px}
@media(max-width:720px){.cats{grid-template-columns:1fr}}

/* artículo / guía */
.art{display:grid;grid-template-columns:1fr;gap:0;max-width:760px;margin:0 auto}
.crumb{font-size:13.5px;color:var(--muted);margin-bottom:16px}
.crumb a{color:var(--muted)}
.art .tag{display:inline-block;font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent);font-weight:700}
.art h1{font-size:clamp(28px,4vw,38px);font-weight:820;letter-spacing:-.03em;margin:10px 0 0;text-wrap:balance}
.art .intro{color:var(--muted);font-size:18px;margin:14px 0 8px}
.steps{list-style:none;counter-reset:s;padding:0;margin:32px 0}
.steps>li{counter-increment:s;position:relative;padding:0 0 28px 58px;border-left:2px solid var(--line);margin-left:18px}
.steps>li:last-child{border-left-color:transparent;padding-bottom:0}
.steps>li::before{content:counter(s);position:absolute;left:-19px;top:-4px;width:36px;height:36px;border-radius:50%;background:var(--navy);color:#fff;font-family:var(--mono);font-weight:700;font-size:15px;display:grid;place-items:center;box-shadow:0 0 0 4px var(--bg)}
.steps>li h3{font-size:18px;font-weight:700;margin:0 0 6px;letter-spacing:-.01em}
.steps>li p{margin:0;color:var(--muted);font-size:15.5px}
.steps>li p+p{margin-top:8px}
.kbd,.ui{font-family:var(--mono);font-size:.9em;background:var(--chip);color:var(--navy);padding:1px 7px;border-radius:6px;font-weight:600}
figure{margin:16px 0 0;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--surface)}
figure img{display:block;width:100%}
figure figcaption{font-size:13px;color:var(--faint);padding:9px 14px;border-top:1px solid var(--line);background:#fbfcff}
.shot-todo{display:flex;align-items:center;justify-content:center;gap:10px;min-height:150px;color:var(--faint);font-size:14px;background:repeating-linear-gradient(45deg,#f6f8ff,#f6f8ff 12px,#eef1fb 12px,#eef1fb 24px)}
.callout{display:flex;gap:12px;background:#fff8f0;border:1px solid #ffe0bf;border-radius:12px;padding:14px 16px;margin:16px 0;font-size:14.5px}
.callout .em{color:var(--accent);flex-shrink:0}
.callout b{color:var(--ink)}
.next{display:flex;gap:12px;flex-wrap:wrap;margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.next a{display:flex;flex-direction:column;gap:2px;flex:1;min-width:220px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.next a:hover{border-color:#d4d9f0;text-decoration:none;transform:translateY(-2px);transition:.16s}
.next a small{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--faint)}
.next a b{color:var(--ink);font-size:15px}

/* footer */
footer{border-top:1px solid var(--line);background:var(--surface)}
footer .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:26px 24px;color:var(--muted);font-size:14px}
footer a{color:var(--muted)}

.rv{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}