:root{
  --bg:#F3F6FA; --surface:#FFFFFF; --fg:#101B2D; --muted:#55627A; --line:#D7DEE9;
  --accent:#2447F5; --accent-fg:#FFFFFF; --hot:#E8A317;
  --display:'Bricolage Grotesque','Arial Black',sans-serif;
  --body:'IBM Plex Sans',system-ui,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0B1220; --surface:#131D31; --fg:#EAF0FA; --muted:#93A0B8; --line:#25324B; --accent:#6E88FF; --accent-fg:#0B1220; --hot:#F2B640; color-scheme:dark}}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--body);font-size:16px;line-height:1.65;padding-inline:max(16px,env(safe-area-inset-left,0px)) max(16px,env(safe-area-inset-right,0px))}
.wrap{max-width:1040px;margin:0 auto}
a{color:var(--accent)}
header.top{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-block:18px;flex-wrap:wrap;border-bottom:1px solid var(--line)}
.logo{font-family:var(--display);font-weight:800;font-size:1.3rem;letter-spacing:-.01em;color:var(--fg);text-decoration:none}
.logo span{color:var(--accent)}
nav.main{display:flex;gap:20px;flex-wrap:wrap;font-size:.95rem}
nav.main a{color:var(--muted);text-decoration:none}
nav.main a:hover,nav.main a:focus-visible{color:var(--fg);text-decoration:underline}
h1,h2,h3{font-family:var(--display);line-height:1.08;text-wrap:balance;margin:0}
h1{font-size:clamp(2.3rem,6.5vw,4.3rem);font-weight:800;letter-spacing:-.025em}
h1 em{font-style:normal;color:var(--accent)}
h2{font-size:clamp(1.6rem,3.6vw,2.4rem);font-weight:800;letter-spacing:-.02em}
h3{font-size:1.2rem;font-weight:600}
p{margin:0}
.tag{font-family:var(--mono);font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.hero{display:grid;grid-template-columns:1.15fr 1fr;gap:40px;align-items:center;padding-block:48px 64px}
.lead{font-size:1.15rem;color:var(--muted);max-width:54ch;margin-top:20px}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px;align-items:center}
.btn{font:500 1rem var(--body);padding:13px 22px;border-radius:6px;border:1.5px solid var(--fg);color:var(--fg);background:transparent;text-decoration:none;cursor:pointer;display:inline-block}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-fg)}
.btn:focus-visible,input:focus-visible,summary:focus-visible,a:focus-visible{outline:3px solid var(--hot);outline-offset:2px}
.ledger{background:var(--surface);border:1.5px solid var(--fg);border-radius:10px;padding:24px;min-width:0}
.ledger .tag{display:block;margin-bottom:14px}
.row{display:flex;justify-content:space-between;gap:12px;font-family:var(--mono);font-size:.95rem;padding:9px 0;border-bottom:1px dashed var(--line)}
.row b{font-weight:500}
.row.total{border-bottom:0;border-top:1.5px solid var(--fg);margin-top:6px;padding-top:12px}
.ctl{margin-top:14px;display:grid;gap:4px;font-size:.85rem;color:var(--muted)}
.ctl label{display:flex;justify-content:space-between;font-family:var(--mono)}
input[type=range]{width:100%;accent-color:var(--accent)}
.note{font-size:.8rem;color:var(--muted);margin-top:14px}
section{padding-block:56px;border-top:1px solid var(--line)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:28px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:28px;min-width:0}
.card p{color:var(--muted);margin-top:8px}
.card ul{margin:16px 0 0;padding-left:20px;color:var(--muted)}
.card li{margin-bottom:6px}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:28px;counter-reset:s}
.step{border-top:3px solid var(--accent);padding-top:14px;counter-increment:s;min-width:0}
.step::before{content:"Paso " counter(s);font-family:var(--mono);font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.step h3{font-size:1.1rem;margin:6px 0}
.step p{color:var(--muted);font-size:.95rem}
.rules{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:28px}
.rules p{color:var(--muted);font-size:.95rem;margin-top:6px}
details{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:16px 20px;margin-top:12px}
summary{cursor:pointer;font-weight:500}
details p{color:var(--muted);margin-top:10px}
.mail{font-family:var(--mono);font-size:1.05rem;padding:12px 16px;border:1.5px dashed var(--fg);border-radius:6px;background:var(--surface);user-select:all;overflow-wrap:anywhere}
.doc{max-width:760px;padding-block:40px 64px}
.doc h1{font-size:clamp(2rem,5vw,3rem);margin-bottom:8px}
.doc h2{font-size:1.4rem;margin-top:36px}
.doc p,.doc li{color:var(--muted);margin-top:10px}
.doc ul{padding-left:20px}
footer{padding-block:32px 48px;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem;display:flex;gap:20px;flex-wrap:wrap;justify-content:space-between}
footer a{color:var(--muted)}
@media(max-width:820px){.hero,.two,.rules{grid-template-columns:1fr}.steps{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.steps{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}