/* =========================================================
   DT Ingeniería — dtingenieria.tech
   Hoja de estilos principal
   ========================================================= */

:root{
  --ink:#0E1412;
  --ink-2:#161C1A;
  --ink-3:#1F2624;
  --yellow:#FDCC17;
  --yellow-d:#E3B505;
  --yellow-soft:rgba(253,204,23,.12);
  --white:#ffffff;
  --paper:#F6F7F6;
  --paper-2:#ECEEED;
  --text:#1B211F;
  --muted:#5D6764;
  --muted-2:#8A9391;
  --line:#E1E4E3;
  --line-dark:rgba(255,255,255,.10);
  --green:#1E5B47;
  --green-soft:#E8F2ED;

  --radius:14px;
  --radius-lg:20px;
  --shadow:0 2px 4px rgba(14,20,18,.04), 0 12px 28px rgba(14,20,18,.07);
  --shadow-lg:0 8px 20px rgba(14,20,18,.08), 0 24px 60px rgba(14,20,18,.12);
  --header-h:76px;

  --font:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --font-display:"Barlow Condensed","Inter",system-ui,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px);-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.65;
  color:var(--text);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3{margin:0;line-height:1.14;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
svg{display:block}

:focus-visible{outline:3px solid var(--yellow);outline-offset:3px;border-radius:4px}

.container{width:min(1180px,calc(100% - 40px));margin-inline:auto}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--yellow);color:var(--ink);padding:12px 20px;font-weight:600;border-radius:0 0 8px 0;
}
.skip-link:focus{left:0}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(14,20,18,.92);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line-dark);
  transition:background .25s ease, box-shadow .25s ease;
}
.site-header.is-scrolled{background:rgba(14,20,18,.98);box-shadow:0 6px 24px rgba(0,0,0,.28)}

.header-inner{display:flex;align-items:center;gap:20px;min-height:var(--header-h)}

.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;padding:6px 0}
.brand-mark{width:46px;height:46px;border-radius:10px}
.brand-text{display:flex;flex-direction:column;line-height:1.1;color:var(--white)}
.brand-text strong{font-family:var(--font-display);font-size:1.42rem;letter-spacing:.04em;font-weight:700}
.brand-text small{font-size:.68rem;color:var(--yellow);letter-spacing:.04em;font-weight:500}

.main-nav{margin-left:auto}
.main-nav ul{display:flex;align-items:center;gap:4px}
.main-nav a{
  display:block;padding:9px 13px;border-radius:8px;
  font-size:.875rem;font-weight:500;color:rgba(255,255,255,.82);
  transition:color .18s ease,background .18s ease;
}
.main-nav a:hover{color:var(--yellow);background:rgba(255,255,255,.06)}
.main-nav a.is-active{color:var(--yellow)}
.main-nav a.nav-cta{background:var(--yellow);color:var(--ink);font-weight:600;margin-left:6px}
.main-nav a.nav-cta:hover{background:#fff;color:var(--ink)}

.header-tools{display:flex;align-items:center;gap:10px}

.lang-switch{display:flex;gap:4px;background:rgba(255,255,255,.07);padding:4px;border-radius:10px}
.lang-btn{
  display:flex;align-items:center;gap:6px;
  border:0;background:transparent;cursor:pointer;
  padding:5px 9px;border-radius:7px;
  color:rgba(255,255,255,.6);font-family:inherit;font-size:.72rem;font-weight:700;letter-spacing:.06em;
  transition:background .18s ease,color .18s ease,opacity .18s ease;
}
.lang-btn svg{border-radius:2px;opacity:.55;transition:opacity .18s ease;box-shadow:0 0 0 1px rgba(255,255,255,.25)}
.lang-btn:hover{background:rgba(255,255,255,.09);color:#fff}
.lang-btn:hover svg{opacity:.9}
.lang-btn.is-active{background:var(--yellow);color:var(--ink)}
.lang-btn.is-active svg{opacity:1;box-shadow:0 0 0 1px rgba(14,20,18,.25)}

.burger{display:none;width:44px;height:40px;border:0;background:rgba(255,255,255,.07);border-radius:9px;cursor:pointer;padding:0;position:relative}
.burger span{position:absolute;left:12px;width:20px;height:2px;background:#fff;border-radius:2px;transition:transform .25s ease,opacity .2s ease}
.burger span:nth-child(1){top:14px}
.burger span:nth-child(2){top:19px}
.burger span:nth-child(3){top:24px}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:10px;border:2px solid transparent;
  font-family:inherit;font-size:.94rem;font-weight:600;letter-spacing:.01em;
  cursor:pointer;transition:transform .16s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--yellow);color:var(--ink);box-shadow:0 8px 22px rgba(253,204,23,.28)}
.btn-primary:hover{background:#ffd93d;box-shadow:0 12px 28px rgba(253,204,23,.36)}
.btn-ghost{border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost:hover{border-color:var(--yellow);color:var(--yellow)}
.btn-dark{background:var(--ink);color:var(--yellow);white-space:nowrap}
.btn-dark:hover{background:#000}
.btn-block{width:100%}
.btn-wa{background:#25D366;color:#fff;width:100%;margin-top:22px}
.btn-wa:hover{background:#1eb356}

/* ============ HERO ============ */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;padding:86px 0 92px}
.hero-bg{
  position:absolute;inset:0;
  background:
    radial-gradient(900px 480px at 12% -10%, rgba(253,204,23,.16), transparent 62%),
    radial-gradient(700px 420px at 96% 105%, rgba(253,204,23,.10), transparent 60%),
    linear-gradient(160deg,#0E1412 0%,#121917 55%,#0B100E 100%);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;opacity:.4;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 50% 40%,#000 20%,transparent 78%);
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:center}

.eyebrow{
  display:inline-block;margin:0 0 20px;padding:7px 14px;border-radius:999px;
  background:var(--yellow-soft);border:1px solid rgba(253,204,23,.32);
  color:var(--yellow);font-size:.74rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
}
.hero-title{
  font-family:var(--font-display);
  font-size:clamp(2.7rem,6vw,4.5rem);
  line-height:.98;letter-spacing:-.005em;text-transform:uppercase;margin-bottom:22px;
}
.hero-title .accent{color:var(--yellow)}
.hero-lead{font-size:1.06rem;color:rgba(255,255,255,.76);max-width:56ch;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}

.hero-badges{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;border-top:1px solid var(--line-dark);padding-top:26px}
.hero-badges li{display:flex;flex-direction:column;gap:4px}
.hero-badges strong{font-family:var(--font-display);font-size:1.7rem;color:var(--yellow);line-height:1.05;letter-spacing:.01em}
.hero-badges span{font-size:.76rem;color:rgba(255,255,255,.6);line-height:1.35}

.hero-media{position:relative}
.hero-media img{
  width:100%;border-radius:var(--radius-lg);
  box-shadow:0 30px 70px rgba(0,0,0,.5);
  border:1px solid rgba(255,255,255,.10);
}
.hero-media-tag{
  position:absolute;left:-14px;bottom:-16px;
  display:flex;align-items:center;gap:9px;
  background:var(--yellow);color:var(--ink);
  padding:11px 16px;border-radius:10px;
  font-size:.78rem;font-weight:600;
  box-shadow:0 10px 26px rgba(0,0,0,.35);
}

/* ============ SECTIONS ============ */
.section{padding:92px 0}
.section-alt{background:var(--paper)}
.section-dark{background:var(--ink);color:#fff}
.section-green{background:var(--green-soft)}

.section-head{max-width:760px;margin-bottom:52px}
.kicker{
  display:inline-block;margin:0 0 12px;
  font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--yellow-d);
  position:relative;padding-left:34px;
}
.kicker::before{content:"";position:absolute;left:0;top:50%;width:26px;height:3px;background:var(--yellow);border-radius:2px}
.section-dark .kicker{color:var(--yellow)}
.section-green .kicker{color:var(--green)}
.section-green .kicker::before{background:var(--green)}

.section-head h2{font-family:var(--font-display);font-size:clamp(1.95rem,3.6vw,2.85rem);text-transform:uppercase;letter-spacing:-.005em}
.section-dark .section-head h2{color:#fff}
.section-lead{margin-top:18px;color:var(--muted);font-size:1.02rem}
.section-dark .section-lead{color:rgba(255,255,255,.7)}

.mini-title{font-size:.8rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:32px 0 14px}

/* ============ NOSOTROS ============ */
.about-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:52px;align-items:start}
.about-copy p{color:var(--muted);font-size:1.02rem}

.chip-list{display:flex;flex-wrap:wrap;gap:8px}
.chip-list li{
  padding:8px 15px;border-radius:999px;background:var(--paper);border:1px solid var(--line);
  font-size:.84rem;font-weight:500;color:var(--text);
}
.section-alt .chip-list li{background:#fff}

.about-spec{background:var(--ink);color:#fff;border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-lg)}
.about-spec .mini-title{margin-top:0;color:var(--yellow)}
.spec-list{display:grid;gap:16px}
.spec-list li{display:flex;align-items:center;gap:14px;font-size:.94rem;color:rgba(255,255,255,.86)}
.spec-list svg{width:26px;height:26px;flex:0 0 26px;color:var(--yellow)}
.spec-note{display:flex;gap:12px;margin-top:28px;padding-top:24px;border-top:1px solid var(--line-dark)}
.spec-note svg{width:24px;height:24px;flex:0 0 24px;color:var(--yellow)}
.spec-note p{font-size:.86rem;color:rgba(255,255,255,.66);line-height:1.55}

/* ============ CARDS ============ */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  position:relative;overflow:hidden;
}
.card::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:var(--yellow);transform:scaleX(0);transform-origin:left;transition:transform .28s ease}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:#d6dad9}
.card:hover::before{transform:scaleX(1)}
.card-icon{
  width:52px;height:52px;border-radius:12px;
  background:var(--ink);color:var(--yellow);
  display:grid;place-items:center;margin-bottom:20px;
}
.card-icon svg{width:27px;height:27px}
.card h3{font-size:1.09rem;margin-bottom:10px}
.card p{font-size:.92rem;color:var(--muted);line-height:1.6}

/* ============ PROCESO ============ */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:step}
.step{position:relative;padding:28px 22px;border-radius:var(--radius);background:rgba(255,255,255,.04);border:1px solid var(--line-dark)}
.step-num{font-family:var(--font-display);font-size:2.4rem;color:rgba(253,204,23,.28);line-height:1;display:block}
.step-icon{width:44px;height:44px;border-radius:10px;background:var(--yellow);color:var(--ink);display:grid;place-items:center;margin:12px 0 16px}
.step-icon svg{width:24px;height:24px}
.step h3{font-size:1rem;color:var(--yellow);margin-bottom:9px;text-transform:uppercase;letter-spacing:.04em;font-family:var(--font-display);font-size:1.22rem}
.step p{font-size:.86rem;color:rgba(255,255,255,.66);line-height:1.55}

/* ============ VALOR ============ */
.value-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:20px}
.value-card{
  padding:28px 26px;border-radius:var(--radius);
  background:var(--paper);border:1px solid var(--line);
  border-left:4px solid var(--yellow);
  transition:transform .22s ease,box-shadow .22s ease;
}
.value-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.value-icon{width:44px;height:44px;border-radius:50%;background:var(--yellow);color:var(--ink);display:grid;place-items:center;margin-bottom:18px}
.value-icon svg{width:24px;height:24px}
.value-card h3{font-size:1.05rem;margin-bottom:9px}
.value-card p{font-size:.91rem;color:var(--muted);line-height:1.6}

.clients{margin-top:56px;padding-top:34px;border-top:1px solid var(--line);text-align:center}
.clients-title{font-size:.76rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2);margin-bottom:20px}
.clients-list{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 30px}
.clients-list li{
  font-family:var(--font-display);font-size:1.16rem;font-weight:600;letter-spacing:.05em;
  color:var(--muted);text-transform:uppercase;
  transition:color .2s ease;
}
.clients-list li:hover{color:var(--ink)}

/* ============ INSTRUMENTAL ============ */
.inst-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}
.inst-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease;
}
.inst-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.inst-photo{
  height:260px;display:grid;place-items:center;padding:20px;
  background:linear-gradient(170deg,#ffffff 0%,#F1F3F2 100%);
  border-bottom:1px solid var(--line);
}
/* Alto en px, no en %: sobre un ítem de grilla el porcentaje no se resuelve
   de forma confiable y las fotos verticales se salían del recuadro. */
.inst-photo img{
  max-height:220px;max-width:100%;width:auto;height:auto;
  object-fit:contain;
  filter:drop-shadow(0 10px 18px rgba(14,20,18,.14));
}
.inst-body{padding:24px 22px 26px;display:flex;flex-direction:column;flex:1}
.inst-model{font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--yellow-d);margin-bottom:8px}
.inst-body h3{font-size:1.04rem;margin-bottom:10px}
.inst-body > p:not(.inst-model){font-size:.89rem;color:var(--muted);line-height:1.58;margin-bottom:16px}
.inst-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:auto}
.inst-tags li{font-size:.7rem;font-weight:600;padding:5px 10px;border-radius:6px;background:var(--ink);color:var(--yellow);letter-spacing:.02em}
.inst-foot{margin-top:34px;text-align:center;color:var(--muted);font-size:.94rem;max-width:820px;margin-inline:auto}

/* ============ NORMATIVA ============ */
.norm-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:20px}
.norm-card{
  display:flex;gap:20px;align-items:flex-start;
  padding:28px 26px;border-radius:var(--radius);
  background:var(--paper);border:1px solid var(--line);
  transition:transform .22s ease,box-shadow .22s ease;
}
.norm-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.norm-badge{
  flex:0 0 68px;height:68px;border-radius:12px;
  background:var(--yellow);color:var(--ink);
  display:grid;place-items:center;
  font-family:var(--font-display);font-size:1.32rem;font-weight:700;letter-spacing:.03em;
}
.norm-card h3{font-size:1.06rem;margin-bottom:9px}
.norm-card p{font-size:.9rem;color:var(--muted);line-height:1.6}

/* ============ AMBIENTE ============ */
.env-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:20px}
.env-card{
  background:#fff;border:1px solid #D6E3DC;border-radius:var(--radius);padding:28px 26px;
  transition:transform .22s ease,box-shadow .22s ease;
}
.env-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(30,91,71,.13)}
.env-icon{width:48px;height:48px;border-radius:12px;background:var(--green);color:#fff;display:grid;place-items:center;margin-bottom:18px}
.env-icon svg{width:25px;height:25px}
.env-card h3{font-size:1.04rem;margin-bottom:10px;color:var(--green)}
.env-card p{font-size:.9rem;color:var(--muted);line-height:1.6}

/* ============ CTA BAND ============ */
.cta-band{background:var(--yellow);padding:52px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap}
.cta-inner h2{font-family:var(--font-display);font-size:clamp(1.6rem,3vw,2.3rem);text-transform:uppercase;color:var(--ink);margin-bottom:8px}
.cta-inner p{color:rgba(14,20,18,.76);font-size:1rem;max-width:60ch}

/* ============ CONTACTO ============ */
.contact-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:46px;align-items:start}

.contact-list{display:grid;gap:20px}
.contact-list li{display:flex;gap:16px;align-items:flex-start}
.ci-icon{
  flex:0 0 46px;height:46px;border-radius:11px;
  background:var(--ink);color:var(--yellow);display:grid;place-items:center;
}
.ci-icon svg{width:23px;height:23px}
.ci-label{font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);margin-bottom:3px}
.ci-value{font-size:1rem;font-weight:500;line-height:1.45;margin:0}
.ci-note{font-size:.8rem;font-weight:400;color:var(--muted-2)}
.ci-value a{border-bottom:1px solid transparent;transition:border-color .2s ease,color .2s ease}
.ci-value a:hover{color:var(--yellow-d);border-color:var(--yellow-d)}

.map-wrap{margin-top:24px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:var(--paper)}
.map-wrap iframe{display:block;width:100%;height:260px;border:0;filter:grayscale(.35) contrast(1.03)}

.contact-form{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px 32px;box-shadow:var(--shadow)}
.form-intro{font-size:.95rem;color:var(--muted);margin-bottom:24px}
.field{margin-bottom:18px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field label{display:block;font-size:.78rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border-radius:10px;
  border:1px solid var(--line);background:#fff;
  font-family:inherit;font-size:.95rem;color:var(--text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{resize:vertical;min-height:120px}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--yellow);box-shadow:0 0 0 3px rgba(253,204,23,.22);
}
.field input:invalid:not(:placeholder-shown){border-color:#d9534f}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-status{margin-top:14px;font-size:.9rem;font-weight:500;min-height:1.4em}
.form-status.ok{color:#1E7A4C}
.form-status.err{color:#C0392B}

/* ============ FOOTER ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:44px;padding-bottom:48px}
.footer-brand img{width:60px;height:60px;border-radius:12px;margin-bottom:16px}
.footer-name{font-family:var(--font-display);font-size:1.5rem;letter-spacing:.05em;color:#fff;margin-bottom:2px;font-weight:700}
.footer-tag{font-size:.76rem;color:var(--yellow);letter-spacing:.04em;margin-bottom:18px}
.footer-claim{font-family:var(--font-display);font-size:1.24rem;text-transform:uppercase;color:#fff;line-height:1.2;max-width:22ch}
.footer-claim .accent{color:var(--yellow)}
.footer-col h3{font-size:.76rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--yellow);margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col li{font-size:.9rem}
.footer-col a{transition:color .18s ease}
.footer-col a:hover{color:var(--yellow)}

.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding:22px 0;border-top:1px solid var(--line-dark);
  font-size:.8rem;color:rgba(255,255,255,.5);
}
.footer-norm{letter-spacing:.06em;font-weight:600}

/* ============ FLOATING ============ */
.wa-float{
  position:fixed;right:20px;bottom:20px;z-index:90;
  width:56px;height:56px;border-radius:50%;
  background:#25D366;color:#fff;display:grid;place-items:center;
  box-shadow:0 8px 24px rgba(37,211,102,.42);
  transition:transform .2s ease;
}
.wa-float:hover{transform:scale(1.08)}

.to-top{
  position:fixed;right:22px;bottom:88px;z-index:90;
  width:44px;height:44px;border-radius:50%;border:0;cursor:pointer;
  background:var(--ink);color:var(--yellow);
  display:grid;place-items:center;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s;
  box-shadow:0 6px 18px rgba(0,0,0,.28);
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}

/* ============ REVEAL ============ */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .btn:hover,.card:hover,.value-card:hover,.inst-card:hover,.norm-card:hover,.env-card:hover,.wa-float:hover{transform:none}
}

/* ============ RESPONSIVE ============ */
@media (max-width:1080px){
  .steps{grid-template-columns:repeat(3,1fr)}
  .hero-inner{gap:40px}
}

/* El menú horizontal completo (marca + 7 secciones + selector de idioma) sólo
   entra cuando el contenedor alcanza su ancho máximo de 1180px, es decir a
   partir de 1220px de viewport. Por debajo pasa a menú desplegable. */
@media (max-width:1219px){
  .main-nav{
    position:fixed;inset:var(--header-h) 0 auto 0;
    background:#0E1412;border-bottom:1px solid var(--line-dark);
    max-height:0;overflow:hidden;transition:max-height .3s ease;margin:0;
  }
  .main-nav.is-open{max-height:80vh;overflow:auto;box-shadow:0 20px 40px rgba(0,0,0,.4)}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0;padding:10px 20px 22px}
  .main-nav a{padding:14px 6px;border-bottom:1px solid rgba(255,255,255,.06);border-radius:0;font-size:.98rem}
  .main-nav a.nav-cta{margin:14px 0 0;border-radius:9px;text-align:center;border-bottom:0}
  .burger{display:block}
  .header-tools{margin-left:auto}
}

@media (max-width:960px){
  .hero{padding:60px 0 70px}
  .hero-inner{grid-template-columns:1fr}
  .hero-media{max-width:460px;margin-inline:auto;order:-1}
  .hero-media-tag{left:auto;right:10px;bottom:-14px}

  .about-grid{grid-template-columns:1fr;gap:36px}
  .contact-grid{grid-template-columns:1fr;gap:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .footer-brand{grid-column:1 / -1}
}

@media (max-width:960px){
  .hero-badges{grid-template-columns:repeat(2,1fr);gap:20px}
}

@media (max-width:720px){
  .section{padding:68px 0}
  .steps{grid-template-columns:1fr}
  .hero-badges{grid-template-columns:repeat(2,1fr);gap:18px}
  .hero-badges strong{font-size:1.4rem}
  .field-row{grid-template-columns:1fr}
  .contact-form{padding:26px 22px}
  .about-spec{padding:26px 22px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .norm-card{flex-direction:column;gap:16px}
  .brand-text small{display:none}
  .lang-code{display:none}
  .lang-btn{padding:6px 8px}
}

@media (max-width:420px){
  .container{width:calc(100% - 28px)}
  .brand-text strong{font-size:1.16rem}
  .brand-mark{width:40px;height:40px}
  .btn{width:100%}
  .hero-actions{flex-direction:column}
}

/* ============ PRINT ============ */
@media print{
  .site-header,.wa-float,.to-top,.map-wrap,.contact-form,.hero-actions{display:none}
  body{color:#000}
  .hero,.section-dark,.site-footer{background:#fff!important;color:#000!important}
  .reveal{opacity:1;transform:none}
}