:root{
  --bg:#ECEFF3; --paper:#FFFFFF; --paper-2:#F6F8FA; --ink:#13202C; --muted:#5A6977; --line:#D5DCE3;
  --accent:#1D5BA8; --accent-ink:#FFFFFF; --accent-soft:#E2ECF8; --tape:#E5A23A; --tape-soft:#FBF0DC;
  --ok:#1B7A48; --ok-soft:#DFF2E7; --warn:#9A6200; --warn-soft:#FBEFD6; --bad:#B42318; --bad-soft:#FBE3DF;
  --shadow:0 1px 2px rgba(19,32,44,.06),0 6px 20px rgba(19,32,44,.06);
  --f-display:"Barlow Condensed","Arial Narrow",system-ui,sans-serif;
  --f-body:"Source Sans 3",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0E141A; --paper:#17202A; --paper-2:#1C2631; --ink:#E6ECF2; --muted:#9AA9B6; --line:#2C3946;
  --accent:#78A9EC; --accent-ink:#0E141A; --accent-soft:#1B2C42; --tape:#E8B04B; --tape-soft:#3A2C12;
  --ok:#5CCB8E; --ok-soft:#163325; --warn:#E8B04B; --warn-soft:#3A2C10; --bad:#F2877D; --bad-soft:#3D1A17;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 6px 20px rgba(0,0,0,.25); color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0E141A; --paper:#17202A; --paper-2:#1C2631; --ink:#E6ECF2; --muted:#9AA9B6; --line:#2C3946;
  --accent:#78A9EC; --accent-ink:#0E141A; --accent-soft:#1B2C42; --tape:#E8B04B; --tape-soft:#3A2C12;
  --ok:#5CCB8E; --ok-soft:#163325; --warn:#E8B04B; --warn-soft:#3A2C10; --bad:#F2877D; --bad-soft:#3D1A17;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 6px 20px rgba(0,0,0,.25); color-scheme:dark}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.55}
a{color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:1180px;margin:0 auto;padding-inline:16px}
h1,h2,h3{font-family:var(--f-display);line-height:1.05;letter-spacing:.01em;margin:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 .95rem/1 var(--f-body);border-radius:9px;padding:12px 18px;min-height:44px;border:1px solid var(--line);background:var(--paper);color:var(--ink);cursor:pointer;text-decoration:none}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.08)}
.btn.big{padding:15px 24px;font-size:1.05rem}
.btn[disabled]{opacity:.55;cursor:not-allowed}
.muted{color:var(--muted)}
/* barra */
.nav{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--f-display);font-weight:700;font-size:1.45rem}
.nav nav{display:flex;align-items:center;gap:6px}
.nav nav a.lk{color:var(--ink);text-decoration:none;padding:10px 10px;font-weight:600;font-size:.95rem}
@media (max-width:640px){.nav nav a.lk{display:none}}
/* portada */
.hero{padding:56px 0 40px}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:40px;align-items:center}
.eyebrow{font-family:var(--f-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin:0 0 12px}
.hero h1{font-size:clamp(2.4rem,5.2vw,4rem);font-weight:700}
.hero p.lead{font-size:1.15rem;color:var(--muted);max-width:56ch;margin:16px 0 24px}
.hero .ctas{display:flex;flex-wrap:wrap;gap:10px}
.sheet{background:var(--paper);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:20px;position:relative}
.sheet .row{display:flex;justify-content:space-between;gap:10px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:.92rem}
.sheet .row:last-child{border-bottom:0}
.sheet .row b{font-family:var(--f-mono);font-weight:600}
.sheet .tag{position:absolute;top:-12px;right:16px;background:var(--ok);color:#fff;font:700 .72rem/1 var(--f-body);padding:6px 10px;border-radius:99px;letter-spacing:.04em}
.sheet h3{font-size:1.3rem;margin-bottom:6px}
@media (max-width:860px){.hero .wrap{grid-template-columns:1fr}.hero{padding-top:32px}}
/* secciones */
section.blk{padding:48px 0}
section.blk h2{font-size:clamp(1.9rem,3.6vw,2.6rem);margin-bottom:8px}
section.blk .sub{color:var(--muted);margin:0 0 26px;max-width:64ch}
.feats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.feat{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:18px}
.feat h3{font-size:1.2rem;margin-bottom:6px}.feat p{margin:0;color:var(--muted);font-size:.95rem}
@media (max-width:860px){.feats{grid-template-columns:1fr 1fr}}@media (max-width:560px){.feats{grid-template-columns:1fr}}
/* planes */
.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;align-items:stretch}
@media (max-width:900px){.plans{grid-template-columns:1fr}}
.plan{position:relative;background:var(--paper);border:2px solid var(--line);border-radius:16px;padding:24px 22px;display:flex;flex-direction:column;gap:12px;cursor:pointer;transition:border-color .15s,transform .15s}
.plan:hover{border-color:var(--accent)}
.plan.sel{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.plan.best{border-color:var(--ok)}
.plan .badge{position:absolute;top:-13px;left:22px;background:var(--ok);color:#fff;font:700 .74rem/1 var(--f-body);padding:7px 11px;border-radius:99px;letter-spacing:.03em}
.plan h3{font-size:1.5rem}
.price{font-family:var(--f-display);font-weight:700;font-size:2.6rem;line-height:1}
.price small{font-family:var(--f-body);font-size:.95rem;font-weight:600;color:var(--muted)}
.save{font-weight:700;color:var(--ok);font-size:.95rem}
.plan ul{list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:7px;font-size:.95rem}
.plan li{padding-left:24px;position:relative}
.plan li::before{content:"";position:absolute;left:2px;top:.45em;width:12px;height:7px;border-left:2px solid var(--ok);border-bottom:2px solid var(--ok);transform:rotate(-45deg)}
.plan li.no::before{border:0;content:"–";color:var(--muted);top:0;transform:none}
.plan .btn{margin-top:auto}
/* formulario */
.reg{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.8fr);gap:24px;align-items:start}
@media (max-width:860px){.reg{grid-template-columns:1fr}}
.card{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:var(--shadow)}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:560px){.fields{grid-template-columns:1fr}}
.f{display:flex;flex-direction:column;gap:6px;min-width:0}.f.wide{grid-column:1/-1}
.f label{font-size:.85rem;font-weight:700}
.f input,.f select{font:inherit;font-size:16px;padding:11px 12px;border-radius:9px;border:1px solid var(--line);background:var(--paper-2);color:var(--ink);min-height:46px;width:100%}
.f input:focus,.f select:focus{outline:2px solid var(--accent);outline-offset:0;border-color:var(--accent)}
.hint{font-size:.8rem;color:var(--muted)}
.chk{display:flex;gap:10px;align-items:flex-start;font-size:.92rem;margin-top:14px}
.chk input{width:20px;height:20px;margin-top:2px;accent-color:var(--accent)}
.msg{min-height:1.4em;font-size:.92rem;margin:12px 0 0}.msg.err{color:var(--bad)}.msg.ok{color:var(--ok)}
.summary .row{display:flex;justify-content:space-between;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}
.summary .row:last-of-type{border-bottom:0}.summary .tot b{font-family:var(--f-display);font-size:1.8rem}
.pay{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:.85rem;margin-top:10px}
.cond{font-size:.92rem;color:var(--muted)}.cond li{margin-bottom:6px}
details.faq{border-bottom:1px solid var(--line);padding:14px 0}details.faq summary{cursor:pointer;font-weight:700;list-style:none}details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";float:right;color:var(--accent);font-weight:700}details.faq[open] summary::after{content:"–"}
details.faq p{color:var(--muted);margin:8px 0 0}
footer.site{border-top:1px solid var(--line);padding:24px 0 40px;color:var(--muted);font-size:.88rem}
footer.site .wrap{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between}
/* páginas simples */
body.pago,body.auth{min-height:100vh;display:grid;place-items:center;padding:16px}
.pcard{background:var(--paper);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:28px 24px;width:min(520px,100%);text-align:center;display:flex;flex-direction:column;gap:12px;align-items:center}
.pcard .brand{font-size:1.25rem}
.pcard h1{font-size:2.1rem}
.ok-ic,.bad-ic{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;font:700 2rem/1 var(--f-body);color:#fff;background:var(--ok)}.bad-ic{background:var(--bad)}
.wait-ic{width:52px;height:52px;border-radius:50%;border:5px solid var(--accent-soft);border-top-color:var(--accent);animation:sp 1s linear infinite}@keyframes sp{to{transform:rotate(360deg)}}
.cred{width:100%;background:var(--paper-2);border:1px solid var(--line);border-radius:12px;padding:16px;text-align:left}
.cred h2{font-size:1.3rem;margin-bottom:8px}.cred dl{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;margin:0 0 10px}.cred dt{font-weight:700}.cred dd{margin:0}
.cred code{font-family:var(--f-mono);font-size:1.05rem;background:var(--paper);padding:2px 8px;border-radius:6px;border:1px solid var(--line)}
.warn{color:var(--warn);font-size:.9rem}
.auth .pcard{text-align:left;align-items:stretch}.auth .pcard .brand{align-self:center}
.auth form{display:flex;flex-direction:column;gap:12px}
.tabs{display:flex;gap:6px;background:var(--paper-2);padding:4px;border-radius:10px}.tabs button{flex:1;border:0;background:none;padding:10px;border-radius:8px;font-weight:600;cursor:pointer;min-height:40px}.tabs button[aria-selected="true"]{background:var(--paper);box-shadow:var(--shadow)}
[hidden]{display:none!important}