/* ITAR GT — tecnología aplicada. Paleta tomada del logo: verde profundo, petróleo y papel.
   Layout: cabecera fija, hero en dos columnas, servicios en rejilla 2×2, proceso en línea, contacto al cierre.
   Solo fuentes del sistema: la página no carga nada de terceros. */
:root{
  --paper:#f4f7f1; --surface:#ffffff; --ink:#132826; --muted:#4b6662; --line:#cfdcd6;
  --brand:#183230; --on-brand:#eef4ec; --teal:#06707e; --teal-ink:#ffffff; --teal-soft:#dcefef;
  --signal:#c25e00; --focus:#ffb000; --ok:#0b6b47; --err:#9a3b00;
  --f-body:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --f-mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --r:12px; --wrap:1160px; color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --paper:#0c1615; --surface:#132220; --ink:#e3ede8; --muted:#a2b9b3; --line:#2a433e;
  --brand:#0a1a19; --on-brand:#eef4ec; --teal:#5cc6d3; --teal-ink:#06221f; --teal-soft:#123a3e;
  --signal:#f2a25a; --ok:#55cf9f; --err:#f0b35c; color-scheme:dark}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.6 var(--f-body)}
img{max-width:100%;display:block}
a{color:var(--teal)}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
h1,h2,h3{line-height:1.15;margin:0;text-wrap:balance;letter-spacing:-.01em}
p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:max(18px,env(safe-area-inset-left,0px));padding-right:max(18px,env(safe-area-inset-right,0px))}
.skip{position:absolute;left:8px;top:-60px;background:var(--surface);color:var(--ink);padding:8px 14px;border-radius:8px;z-index:50}
.skip:focus{top:8px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.falta{background:#fff1dc;color:#8a4b00;border-radius:4px;padding:0 4px;font-weight:700}
.eyebrow{font-family:var(--f-mono);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--teal);font-weight:700}

/* cabecera */
.top{position:sticky;top:0;z-index:20;background:var(--brand);color:var(--on-brand)}
.top .wrap{display:flex;align-items:center;gap:18px;min-height:64px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:inherit;text-decoration:none;font-weight:800;font-size:1.15rem}
.brand .chip{background:#f1f5ed;border-radius:9px;padding:3px 6px;display:flex}
.brand img{height:36px;width:auto}
.brand small{font-weight:500;opacity:.8;font-size:.85rem}
nav.main{margin-left:auto;display:flex;gap:4px;flex-wrap:wrap}
nav.main a{color:var(--on-brand);text-decoration:none;padding:8px 10px;border-radius:8px;font-weight:600;font-size:.95rem}
nav.main a:hover{background:rgba(255,255,255,.08)}
nav.main a.cta{background:#5cc6d3;color:#06221f}
@media (max-width:760px){nav.main{width:100%;margin:0 0 8px;overflow-x:auto;flex-wrap:nowrap}nav.main a{white-space:nowrap}}

/* hero */
.hero{background:var(--brand);color:var(--on-brand);padding-block:56px 72px;position:relative;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:40px;align-items:center}
@media (max-width:860px){.hero .wrap{grid-template-columns:1fr}}
.hero h1{font-size:clamp(2.1rem,5vw,3.5rem);font-weight:800}
.hero h1 em{font-style:normal;color:#5cc6d3}
.hero p.lead{font-size:1.15rem;color:#cfe0da;max-width:58ch;margin-top:18px}
.hero .eyebrow{color:#8fd6de}
.btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-flex;align-items:center;gap:8px;min-height:48px;padding:12px 20px;border-radius:10px;font-weight:700;text-decoration:none;border:2px solid transparent;cursor:pointer;font-size:1rem}
.btn.pri{background:#5cc6d3;color:#06221f}
.btn.sec{border-color:#7f9c97;color:var(--on-brand);background:transparent}
.btn.dark{background:var(--teal);color:var(--teal-ink)}
.btn.line{border-color:var(--line);color:var(--ink);background:var(--surface)}
.btn:disabled{opacity:.6;cursor:not-allowed}

/* diagrama del hero: cuatro áreas conectadas a ITAR */
.map{position:relative;aspect-ratio:1/1;max-width:440px;width:100%;justify-self:center}
.map svg{width:100%;height:100%}
.map .node{fill:#0f2826;stroke:#3e6a66;stroke-width:1.5}
.map .core{fill:#f1f5ed}
.map text{font-family:var(--f-body);font-size:13px;fill:#e3ede8;font-weight:700}
.map .lbl2{font-weight:400;fill:#a2c3bd;font-size:11.5px}
.map .wire{stroke:#5cc6d3;stroke-width:1.5;fill:none;stroke-dasharray:4 6}
@media (prefers-reduced-motion:no-preference){.map .wire{animation:flow 2.2s linear infinite}@keyframes flow{to{stroke-dashoffset:-20}}}

/* secciones */
section.block{padding-block:72px}
.head{display:flex;flex-direction:column;gap:10px;max-width:70ch;margin-bottom:34px}
.head h2{font-size:clamp(1.7rem,3.4vw,2.4rem);font-weight:800}
.head p{color:var(--muted);font-size:1.08rem}

.services{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
@media (max-width:820px){.services{grid-template-columns:1fr}}
.svc{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:26px;display:flex;flex-direction:column;gap:14px;min-width:0}
.svc .ico{width:48px;height:48px;border-radius:12px;background:var(--teal-soft);display:flex;align-items:center;justify-content:center;color:var(--teal)}
.svc .ico svg{width:28px;height:28px}
.svc h3{font-size:1.35rem}
.svc p{color:var(--muted)}
.svc ul{margin:0;padding-left:1.15em;display:flex;flex-direction:column;gap:4px}
.svc .more{margin-top:auto;font-weight:700}
.svc.feature{grid-column:1/-1;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:28px;align-items:center}
@media (max-width:820px){.svc.feature{grid-template-columns:1fr}}
.svc.feature .pics{display:grid;grid-template-columns:2fr 1fr;gap:10px}
.svc.feature .pics img{width:100%;height:100%;object-fit:cover;border-radius:10px;background:#fff;aspect-ratio:4/3}
.svc.feature .pics .stack{display:grid;gap:10px}
.svc.feature .pics .stack img{aspect-ratio:1/1;object-fit:contain}
.note{font-size:.85rem;color:var(--muted)}

.alt{background:var(--surface);border-block:1px solid var(--line)}
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;counter-reset:s;list-style:none;margin:0;padding:0}
@media (max-width:860px){.steps{grid-template-columns:1fr 1fr;gap:22px 0}}
@media (max-width:520px){.steps{grid-template-columns:1fr}}
.steps li{padding:0 22px 0 0;position:relative;display:flex;flex-direction:column;gap:8px}
.steps li::before{counter-increment:s;content:counter(s,decimal-leading-zero);font-family:var(--f-mono);font-weight:700;color:var(--teal);font-size:.9rem;border-top:3px solid var(--teal);padding-top:12px}
.steps h3{font-size:1.12rem}
.steps p{color:var(--muted);font-size:.98rem}

.principles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:8px}
@media (max-width:820px){.principles{grid-template-columns:1fr}}
.principles div{border-left:3px solid var(--signal);padding:4px 0 4px 16px}
.principles h3{font-size:1.05rem;margin-bottom:4px}
.principles p{color:var(--muted);font-size:.97rem}

.aula{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center;background:var(--brand);color:var(--on-brand);border-radius:16px;padding:32px}
@media (max-width:760px){.aula{grid-template-columns:1fr}}
.aula h2{font-size:1.7rem}
.aula p{color:#cfe0da;margin-top:8px;max-width:60ch}

/* nosotros */
.about{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:36px;align-items:center}
@media (max-width:860px){.about{grid-template-columns:1fr}}
.about .head p+p{margin-top:4px}
.facts{margin:0;display:grid;gap:14px}
.facts div{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;display:grid;grid-template-columns:auto 1fr;column-gap:16px;align-items:baseline}
.facts dt{grid-column:1/-1;font-family:var(--f-mono);font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.facts dd{margin:0;font-size:2.1rem;font-weight:800;color:var(--teal);font-variant-numeric:tabular-nums}
.facts p{color:var(--muted)}

/* contacto */
.contact{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:36px}
@media (max-width:860px){.contact{grid-template-columns:1fr}}
.contact aside{display:flex;flex-direction:column;gap:14px}
.contact dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:6px 14px}
.contact dt{font-weight:700;color:var(--muted);font-size:.9rem}
.contact dd{margin:0;min-width:0;overflow-wrap:anywhere}
form.f{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px;display:flex;flex-direction:column;gap:14px}
.f .g2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:560px){.f .g2{grid-template-columns:1fr}}
.f label{display:flex;flex-direction:column;gap:5px;font-weight:700;font-size:.95rem}
.f .opt{font-weight:400;color:var(--muted)}
.f input,.f select,.f textarea{font:inherit;color:var(--ink);background:var(--paper);border:2px solid var(--line);border-radius:9px;padding:10px 12px;min-height:46px;width:100%}
.f textarea{min-height:130px;resize:vertical}
.f .check{flex-direction:row;align-items:flex-start;gap:10px;font-weight:400}
.f .check input{width:22px;height:22px;min-height:0;margin-top:2px;flex:0 0 auto}
.f .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.msg{min-height:1.4em;font-weight:700}
.msg.ok{color:var(--ok)} .msg.err{color:var(--err)}

footer{background:var(--brand);color:#cfe0da;padding-block:40px 28px;font-size:.92rem}
footer .cols{display:grid;grid-template-columns:1.2fr 1.2fr 1fr 1fr;gap:28px}
@media (max-width:760px){footer .cols{grid-template-columns:1fr}}
footer h2{font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;color:#8fd6de;margin-bottom:10px}
footer a{color:#eef4ec}
footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
footer .legal{border-top:1px solid #2f4c48;margin-top:28px;padding-top:16px;display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:space-between}
footer .falta{background:#3a2a10;color:#f0b35c}

/* páginas legales */
.doc{max-width:780px;padding-block:48px 72px}
.doc h1{font-size:2rem;margin-bottom:6px}
.doc h2{font-size:1.2rem;margin:26px 0 8px}
.doc p,.doc li{max-width:70ch}
.doc p+p{margin-top:10px}
.doc .vig{color:var(--muted)}
.doc table{border-collapse:collapse;width:100%;font-size:.95rem;margin-top:8px}
.doc th,.doc td{text-align:left;border-bottom:1px solid var(--line);padding:8px;vertical-align:top}
.tbl{overflow-x:auto}

/* aula */
.frame{width:100%;height:calc(100vh - 64px);border:0;display:block;background:var(--paper)}

/* aviso de cookies */
.cookie{position:fixed;left:0;right:0;bottom:0;z-index:40;background:var(--surface);border-top:3px solid var(--teal);box-shadow:0 -6px 20px rgba(0,0,0,.18);padding-bottom:env(safe-area-inset-bottom,0px)}
.cookie .wrap{display:flex;gap:14px;align-items:center;flex-wrap:wrap;padding-block:14px}
.cookie p{flex:1 1 320px;font-size:.95rem}
button.linkish{background:none;border:0;color:#eef4ec;text-decoration:underline;cursor:pointer;font:inherit;padding:0}
/* páginas de servicio */
.crumbs{font-size:.9rem;color:#cfe0da;margin-bottom:14px}
.crumbs a{color:#eef4ec}
.svc-page{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:36px;align-items:start}
@media (max-width:860px){.svc-page{grid-template-columns:1fr}}
.prose h2{font-size:1.5rem;margin:30px 0 10px}
.prose h3{font-size:1.15rem;margin:20px 0 6px}
.prose p+p{margin-top:12px}
.prose ul{padding-left:1.2em;display:flex;flex-direction:column;gap:6px;margin:10px 0}
.side{position:sticky;top:84px;display:flex;flex-direction:column;gap:14px}
.side .card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;display:flex;flex-direction:column;gap:10px}
.side .card h2{font-size:1.1rem}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:14px 16px}
.faq details+details{margin-top:10px}
.faq summary{cursor:pointer;font-weight:700}
.faq details p{margin-top:8px;color:var(--muted)}
.related{display:flex;flex-wrap:wrap;gap:8px}
.related a{border:1px solid var(--line);border-radius:999px;padding:6px 12px;text-decoration:none;font-weight:600;background:var(--surface)}