/* Layout: banda de acero oscura arriba, escala de resistencia R como hilo conductor, secciones en columnas que apilan en móvil */
:root{
  --bg:#f3f5f7; --surface:#ffffff; --ink:#16202a; --muted:#56636f; --line:#d5dbe1;
  --steel:#c8100f; --steel-ink:#ffffff; --accent:#c8100f; --accent-soft:#fbe3e0; --char:#3a3f45; --gold:#e0ad52; --gold-ink:#5a0707;
  --display:"Saira Condensed","Arial Narrow",Arial,sans-serif;
  --body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0f151b; --surface:#16202a; --ink:#e6ebf0; --muted:#9aa7b3; --line:#2a3743;
  --steel:#9e0c0c; --steel-ink:#ffffff; --accent:#ff5a4a; --accent-soft:#3a1714; --char:#c9d0d6; --gold:#e8b968; --gold-ink:#4a0505; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0f151b; --surface:#16202a; --ink:#e6ebf0; --muted:#9aa7b3; --line:#2a3743;
  --steel:#9e0c0c; --steel-ink:#ffffff; --accent:#ff5a4a; --accent-soft:#3a1714; --char:#c9d0d6; --gold:#e8b968; --gold-ink:#4a0505; color-scheme:dark}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0}
img{max-width:100%}
[hidden]{display:none!important}
body{background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.6}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:10;background:var(--steel)}
.wrap{max-width:1120px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2,h3{font-family:var(--display);line-height:1.05;text-wrap:balance;margin:0}
h2{font-size:clamp(2rem,4vw,2.8rem);font-weight:800;text-transform:uppercase;letter-spacing:.01em}
h3{font-size:1.45rem;font-weight:700}
p{margin:0}
a{color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.label{font-family:var(--mono);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}

/* Header */
header{position:sticky;top:env(safe-area-inset-top,0px);z-index:9;background:var(--steel);color:var(--steel-ink)}
header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:14px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--body);text-transform:uppercase;line-height:1}
.logo .w{display:flex;flex-direction:column;gap:3px}
.logo b{font-weight:700;font-size:1.55rem;letter-spacing:.04em}
.logo small{font-weight:600;font-size:.62rem;letter-spacing:.16em}
/* Colores corporativos en las bandas rojas */
header .btn,.hero .btn:not(.ghost),.contact .btn{background:var(--gold);color:var(--gold-ink)}
.hero .label,.contact .label{color:var(--gold)}
.hero h1 em{color:var(--gold)}
nav a:hover{color:var(--gold)}
.since{display:inline-flex;align-items:center;gap:12px;color:var(--gold);font-weight:600;letter-spacing:.14em;text-transform:uppercase;font-size:.85rem}
.since::before{content:"";width:40px;height:2px;background:var(--gold)}
.hero h1 .since{display:flex;font-family:var(--body);font-size:.85rem;line-height:1.4;font-weight:600;margin-bottom:14px;text-transform:uppercase}
.hero h1 .slogan{display:block}
.logo svg{flex:none}
nav{display:flex;gap:22px;font-size:.92rem}
nav a{text-decoration:none;opacity:.85}
nav a:hover{opacity:1}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--accent);color:#fff;border:0;border-radius:2px;padding:12px 20px;font-family:var(--body);font-weight:600;font-size:.95rem;text-decoration:none;cursor:pointer}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;border:1.5px solid currentColor;color:inherit}
@media (max-width:820px){nav{display:none}}

/* Hero */
.hero{background:var(--steel);color:var(--steel-ink)}
.hero .wrap{display:grid;grid-template-columns:1.15fr 1fr;gap:48px;align-items:center;padding-block:64px 72px}
.hero h1{font-size:clamp(2.8rem,7vw,5.2rem);font-weight:800;text-transform:uppercase;letter-spacing:-.005em}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero p.lead{margin-top:20px;max-width:34em;font-size:1.1rem;opacity:.85}
.hero .ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.rscale{border:1px solid rgba(255,255,255,.3);background:rgba(0,0,0,.08);padding:24px;font-family:var(--mono);font-size:.82rem}
.rscale .row{display:grid;grid-template-columns:52px 1fr 64px;gap:12px;align-items:center;padding-block:9px}
.rscale .bar{height:12px;background:rgba(255,255,255,.15);position:relative;overflow:hidden}
.rscale .bar i{position:absolute;inset:0 auto 0 0;background:linear-gradient(90deg,#fff3d6,var(--gold));transform-origin:left;animation:grow 1.2s ease-out both}
.rscale .r{font-family:var(--display);font-weight:800;font-size:1.3rem}
.rscale .t{text-align:right;opacity:.7}
.rscale .cap{margin-top:14px;opacity:.8;line-height:1.5}
@keyframes grow{from{transform:scaleX(0)}to{transform:scaleX(1)}}
@media (prefers-reduced-motion:reduce){.rscale .bar i{animation:none}}
@media (max-width:820px){.hero .wrap{grid-template-columns:1fr;padding-block:44px 52px;gap:36px}}

section{padding-block:80px}
.sec-head{display:flex;flex-direction:column;gap:10px;margin-bottom:40px;max-width:44em}
.sec-head p{color:var(--muted)}

/* Servicios */
.services{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.svc{background:var(--surface);padding:28px;display:flex;flex-direction:column;gap:12px;min-width:0}
.svc .code{font-family:var(--mono);font-size:.78rem;color:var(--muted)}
.svc p{color:var(--muted);font-size:.95rem}
.svc .more{font-weight:600;font-size:.9rem;color:var(--accent);text-decoration:none;margin-top:auto}
.svc ul{margin:4px 0 0;padding-left:18px;font-size:.9rem;color:var(--ink)}
@media (max-width:900px){.services{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.services{grid-template-columns:1fr}}

/* Proceso */
.process{background:var(--surface);border-block:1px solid var(--line)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;counter-reset:s}
.step{border-top:3px solid var(--ink);padding-top:18px;display:flex;flex-direction:column;gap:8px}
.step::before{counter-increment:s;content:"Paso " counter(s);font-family:var(--mono);font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.step p{color:var(--muted);font-size:.95rem}
@media (max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.steps{grid-template-columns:1fr}}

/* Selector */
.tool{display:grid;grid-template-columns:1fr 1.2fr;gap:40px;align-items:start}
.form-grid{display:grid;gap:18px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-weight:600;font-size:.92rem}
select,input,textarea{font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:2px;padding:11px 12px;width:100%}
textarea{min-height:120px;resize:vertical}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips button{font-family:var(--display);font-weight:700;font-size:1.15rem;background:var(--surface);color:var(--ink);border:1.5px solid var(--line);border-radius:2px;padding:6px 16px;cursor:pointer}
.chips button[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.result{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--accent);padding:28px;display:flex;flex-direction:column;gap:14px;min-width:0}
.result h3{font-size:1.8rem}
.result dl{display:grid;grid-template-columns:auto 1fr;gap:8px 18px;margin:0;font-size:.95rem}
.result dt{font-family:var(--mono);font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);padding-top:3px}
.result dd{margin:0}
.result .note{font-size:.82rem;color:var(--muted)}
@media (max-width:820px){.tool{grid-template-columns:1fr}}

/* Normativa */
.norms{display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px}
.norm{display:grid;grid-template-columns:150px 1fr;gap:16px;padding-block:18px;border-bottom:1px solid var(--line)}
.norm b{font-family:var(--mono);font-weight:500;font-size:.9rem}
.norm span{color:var(--muted);font-size:.95rem}
@media (max-width:820px){.norms{grid-template-columns:1fr}}
@media (max-width:460px){.norm{grid-template-columns:1fr;gap:4px}}

/* Contacto */
.contact{background:var(--steel);color:var(--steel-ink)}
.contact .grid{display:grid;grid-template-columns:1fr 1.2fr;gap:48px}
.contact .sec-head p{color:inherit;opacity:.75}
.contact-data{display:flex;flex-direction:column;gap:18px;font-size:1rem}
.contact-data div{display:flex;flex-direction:column;gap:2px}
.contact-data .k{font-family:var(--mono);font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;color:var(--gold)}
.contact-data .v{font-size:1.15rem;font-weight:600;user-select:all}
.placeholder{background:rgba(255,255,255,.08);border:1px dashed rgba(255,255,255,.35);padding:1px 8px;font-family:var(--mono);font-size:.88rem}
.contact form{display:grid;gap:14px;grid-template-columns:1fr 1fr}
.contact form .full{grid-column:1/-1}
.contact label{font-size:.88rem;font-weight:600}
.contact input,.contact select,.contact textarea{background:rgba(255,255,255,.1);color:var(--steel-ink);border-color:rgba(255,255,255,.35)}
.contact ::placeholder{color:rgba(255,255,255,.65)}
.contact select option{color:#16202a}
.sent{grid-column:1/-1;font-size:.92rem;background:rgba(0,0,0,.15);padding:12px 14px}
@media (max-width:820px){.contact .grid{grid-template-columns:1fr}.contact form{grid-template-columns:1fr}}

footer{background:var(--steel);color:var(--steel-ink);border-top:1px solid rgba(255,255,255,.2)}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-block:22px;font-size:.85rem;opacity:.85}
.wa-float{position:fixed;right:calc(16px + env(safe-area-inset-right,0px));bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:20;display:inline-flex;align-items:center;gap:10px;background:#1f9d55;color:#fff;text-decoration:none;font-family:var(--body);font-weight:600;font-size:.95rem;padding:12px 18px 12px 14px;border-radius:999px;box-shadow:0 6px 18px rgba(0,0,0,.25)}
.wa-float:hover{background:#178a49}
.wa-float:focus-visible{outline:3px solid var(--gold);outline-offset:2px}
@media (max-width:520px){.wa-float span{display:none}.wa-float{padding:14px}}
.btn.wa{background:#1f9d55;color:#fff}

.crumbs{display:block!important;font-size:.85rem;opacity:.85;margin-bottom:18px}
.crumbs a{text-decoration:none}.crumbs a:hover{text-decoration:underline}
.page-hero .wrap{display:block;padding-block:48px 56px}
.page-hero h1{font-size:clamp(2.4rem,5.5vw,4rem);font-weight:800;text-transform:uppercase}
.page-hero .lead{margin-top:18px;max-width:40em;font-size:1.1rem;opacity:.9}
.prose{max-width:46em;display:flex;flex-direction:column;gap:16px}
.prose h2{font-size:clamp(1.6rem,3vw,2.1rem);margin-top:18px}
.prose ul{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:6px}
.facts{width:100%;border-collapse:collapse;font-size:.95rem;font-variant-numeric:tabular-nums}
.facts th,.facts td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.facts th{font-family:var(--mono);font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:500}
.tablewrap{overflow-x:auto}
.faq{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding-block:14px}
.faq summary{cursor:pointer;font-weight:600}
.faq p{margin-top:8px;color:var(--muted)}
.cta-band{background:var(--steel);color:var(--steel-ink)}
.cta-band .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;padding-block:40px}
.cta-band h2{font-size:clamp(1.6rem,3vw,2.2rem)}
.cta-band .btn{background:var(--gold);color:var(--gold-ink)}
.related{display:flex;flex-wrap:wrap;gap:10px}
.related a{border:1.5px solid var(--line);padding:8px 14px;text-decoration:none;font-weight:600;font-size:.92rem;background:var(--surface)}
.related a:hover{border-color:var(--accent)}
.wa-float{position:fixed;right:calc(16px + env(safe-area-inset-right,0px));bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:20;display:inline-flex;align-items:center;gap:10px;background:#1f9d55;color:#fff;text-decoration:none;font-family:var(--body);font-weight:600;font-size:.95rem;padding:12px 18px 12px 14px;border-radius:999px;box-shadow:0 6px 18px rgba(0,0,0,.25)}
.wa-float:hover{background:#178a49}
.wa-float:focus-visible{outline:3px solid var(--gold);outline-offset:2px}
@media (max-width:520px){.wa-float span{display:none}.wa-float{padding:14px}}
.btn.wa{background:#1f9d55;color:#fff}