/* ===========================================================
   ATS Energy — Sitio web (prototipo)
   Identidad: Verde #4C9734 · Amarillo #FFED00 · Negro · Blanco
   Tipografía: Montserrat (sustituto web de Gotham)
   =========================================================== */

:root{
  --green:#4C9734;
  --green-700:#3a7a27;
  --green-900:#16301a;
  --green-950:#0f1f12;
  --yellow:#FFED00;
  --ink:#13201a;        /* texto principal */
  --ink-soft:#51615a;   /* texto secundario */
  --line:#e4eae3;
  --bg:#ffffff;
  --bg-soft:#f4f7f3;
  --bg-dark:#0f1a14;
  --bg-dark-2:#16271c;
  --white:#ffffff;
  --radius:14px;
  --radius-lg:22px;
  --shadow-sm:0 2px 10px rgba(15,31,18,.06);
  --shadow:0 18px 50px -18px rgba(15,31,18,.28);
  --maxw:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:78px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Montserrat",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.12;margin:0;font-weight:800;letter-spacing:-.02em}
p{margin:0 0 1rem}
ul{margin:0;padding:0;list-style:none}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--soft{background:var(--bg-soft)}
.section--dark{background:var(--bg-dark);color:#dfe8e1}
.center{text-align:center}

.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--green);margin-bottom:18px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--yellow)}
.section--dark .eyebrow{color:#9fe27f}

.h-sec{font-size:clamp(28px,4vw,42px);letter-spacing:-.025em}
.lead{font-size:clamp(17px,2vw,20px);color:var(--ink-soft);max-width:62ch}
.section--dark .lead{color:#b6c5bb}
.center .lead{margin-left:auto;margin-right:auto}

/* ---------- Botones ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:700;font-size:15px;letter-spacing:.01em;
  padding:14px 24px;border-radius:999px;border:2px solid transparent;
  cursor:pointer;transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s,color .25s,border-color .25s;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px}
.btn--primary{background:var(--green);color:#fff;box-shadow:0 10px 24px -10px rgba(76,151,52,.7)}
.btn--primary:hover{background:var(--green-700);transform:translateY(-2px);box-shadow:0 16px 30px -12px rgba(76,151,52,.85)}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn--ghost:hover{border-color:#fff;background:rgba(255,255,255,.08);transform:translateY(-2px)}
.btn--dark{background:var(--ink);color:#fff}
.btn--dark:hover{background:#000;transform:translateY(-2px)}
.btn--wa{background:#25D366;color:#0a3d1c}
.btn--wa:hover{background:#1fc35d;transform:translateY(-2px)}
.btn--sm{padding:11px 18px;font-size:14px}

.link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:700;color:var(--green);font-size:15px}
.link-arrow svg{width:16px;height:16px;transition:transform .25s var(--ease)}
.link-arrow:hover svg{transform:translateX(5px)}

/* ===========================================================
   HEADER
   =========================================================== */
.header{
  position:fixed;inset:0 0 auto 0;z-index:60;
  background:linear-gradient(180deg,rgba(13,23,17,.82),rgba(13,23,17,.42));
  transition:background .3s,box-shadow .3s,backdrop-filter .3s;
}
.header__inner{display:flex;align-items:center;gap:34px;height:74px}
.header.is-solid{background:rgba(255,255,255,.96);backdrop-filter:blur(8px);box-shadow:0 1px 0 var(--line),var(--shadow-sm)}

/* Logo wordmark */
.logo{display:flex;align-items:center;line-height:1}
.logo .logo-img{height:30px;width:auto;display:block}
.logo .logo-on-light{display:none}
.header.is-solid .logo .logo-on-dark{display:none}
.header.is-solid .logo .logo-on-light{display:block}
.logo .logo-iso{display:none;height:40px;width:auto}
.header.is-solid .logo{color:var(--ink)}
.header.is-solid .logo .energy{color:var(--green)}

.nav{display:flex;align-items:center;gap:34px}
.nav a{font-size:15px;font-weight:600;color:rgba(255,255,255,.92);position:relative;padding:6px 0;white-space:nowrap}
.nav a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--yellow);transition:width .25s var(--ease)}
.nav a:hover::after,.nav a.active::after{width:100%}
.header.is-solid .nav a{color:var(--ink)}
.header.is-solid .nav a:hover{color:var(--green)}

.header__cta{display:flex;align-items:center;gap:14px}
.burger{display:none;width:44px;height:44px;border:0;background:transparent;cursor:pointer;flex-direction:column;gap:5px;align-items:center;justify-content:center}
.burger span{width:24px;height:2.5px;background:#fff;border-radius:2px;transition:.3s}
.header.is-solid .burger span{background:var(--ink)}
.burger.is-open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ===========================================================
   HERO
   =========================================================== */
.hero{
  position:relative;color:#fff;
  background:
    radial-gradient(120% 90% at 80% 0%, #1d3326 0%, rgba(29,51,38,0) 55%),
    linear-gradient(160deg,#0f1a14 0%,#13251a 60%,#0f1f12 100%);
  padding:148px 0 90px;overflow:hidden;
}
.hero::after{ /* sutil textura/desvanecido inferior */
  content:"";position:absolute;left:0;right:0;bottom:0;height:120px;
  background:linear-gradient(transparent,rgba(0,0,0,.25));pointer-events:none;
}
.hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
.hero__tag{
  display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:#a9e58a;
  background:rgba(76,151,52,.14);border:1px solid rgba(76,151,52,.4);
  padding:8px 16px;border-radius:999px;margin-bottom:26px;
}
.hero h1{font-size:clamp(33px,5vw,56px);letter-spacing:-.03em;line-height:1.05}
.hero h1 .hl{color:var(--green);position:relative}
.hero h1 .hl::after{content:"";position:absolute;left:0;right:0;bottom:4px;height:10px;background:rgba(255,237,0,.22);z-index:-1}
.hero__sub{font-size:clamp(17px,2vw,20px);color:#c2d1c6;margin:24px 0 32px;max-width:54ch}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.hero__stats{display:flex;flex-wrap:wrap;gap:30px 40px;padding-top:28px;border-top:1px solid rgba(255,255,255,.12)}
.hero__stat b{display:block;font-size:28px;font-weight:800;color:#fff;letter-spacing:-.02em}
.hero__stat span{font-size:13.5px;color:#9fb3a4;font-weight:500}

.hero__media{position:relative}
.hero__media img{
  border-radius:var(--radius-lg);box-shadow:var(--shadow);
  border:1px solid rgba(255,255,255,.08);
}
.hero__badge{
  position:absolute;left:-14px;bottom:24px;background:#fff;color:var(--ink);
  border-radius:14px;padding:14px 18px;box-shadow:var(--shadow);max-width:215px;
  display:flex;gap:12px;align-items:center;
}
.hero__badge .iso{width:32px;height:auto;flex:0 0 auto}
.hero__badge b{font-size:15px;display:block;letter-spacing:-.01em}
.hero__badge span{font-size:12.5px;color:var(--ink-soft);line-height:1.35}

/* ===========================================================
   QUÉ HACEMOS
   =========================================================== */
.intro__grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.intro__text .h-sec{margin-bottom:20px}
.feature-list{display:grid;gap:16px;margin-top:24px}
.feature-list li{display:flex;gap:14px;align-items:flex-start;font-size:15.5px;color:var(--ink)}
.feature-list .tick{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:rgba(76,151,52,.12);display:grid;place-items:center;margin-top:1px}
.feature-list .tick svg{width:15px;height:15px;color:var(--green)}

/* ===========================================================
   SOLUCIONES — grid de cards
   =========================================================== */
.head-flex{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:48px;flex-wrap:wrap}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 28px;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s;
  position:relative;overflow:hidden;
}
.card::before{content:"";position:absolute;left:0;top:0;height:3px;width:0;background:var(--green);transition:width .35s var(--ease)}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.card:hover::before{width:100%}
.card__icon{width:52px;height:52px;border-radius:13px;background:var(--green-950);display:grid;place-items:center;margin-bottom:20px}
.card__icon svg{width:26px;height:26px;color:#a9e58a}
.card h3{font-size:19px;margin-bottom:10px;letter-spacing:-.02em}
.card p{font-size:14.5px;color:var(--ink-soft);margin-bottom:18px}

/* ===========================================================
   DIFERENCIALES (dark)
   =========================================================== */
.diff__grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.diff__items{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.diff-item{background:var(--bg-dark-2);border:1px solid rgba(255,255,255,.07);border-radius:13px;padding:22px}
.diff-item .num{font-size:13px;font-weight:700;color:var(--yellow);letter-spacing:.1em}
.diff-item h4{font-size:16px;margin:10px 0 7px;color:#fff;letter-spacing:-.01em}
.diff-item p{font-size:13.5px;color:#a7b8ad;margin:0}

/* ===========================================================
   PRODUCTOS (banda con imagen)
   =========================================================== */
.product-band{display:grid;grid-template-columns:.95fr 1.05fr;gap:56px;align-items:center}
.product-band__media img{border-radius:var(--radius-lg);box-shadow:var(--shadow);border:1px solid var(--line)}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 26px}
.chip{font-size:13.5px;font-weight:600;color:var(--green-900);background:#fff;border:1px solid var(--line);border-radius:999px;padding:9px 16px}
.section--soft .chip{background:#fff}

/* ===========================================================
   INDUSTRIAS
   =========================================================== */
.ind-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.ind{background:#fff;border:1px solid var(--line);border-radius:13px;padding:22px 16px;text-align:center;transition:.3s var(--ease)}
.ind:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:var(--green)}
.ind svg{width:30px;height:30px;color:var(--green);margin:0 auto 12px}
.ind span{font-size:13.5px;font-weight:600;color:var(--ink);line-height:1.3;display:block}

/* ===========================================================
   PROYECTOS
   =========================================================== */
.proj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.proj{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:.3s var(--ease)}
.proj:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.proj__top{height:7px;background:linear-gradient(90deg,var(--green),var(--yellow))}
.proj__body{padding:26px 26px 28px}
.proj__kicker{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--green)}
.proj h4{font-size:18px;margin:10px 0 14px;letter-spacing:-.02em}
.proj dl{margin:0;display:grid;gap:10px}
.proj dt{font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft)}
.proj dd{margin:0 0 4px;font-size:14px;color:var(--ink)}

/* ===========================================================
   CTA FINAL
   =========================================================== */
.cta{
  position:relative;overflow:hidden;border-radius:0;
  background:linear-gradient(120deg,var(--green-900),#1c4327 55%,var(--green-700));
  color:#fff;text-align:center;padding:84px 0;
}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(60% 120% at 90% 10%,rgba(255,237,0,.16),transparent 60%)}
.cta>.wrap{position:relative}
.cta h2{font-size:clamp(28px,4vw,44px);letter-spacing:-.03em;margin-bottom:16px}
.cta p{font-size:19px;color:#d6e6da;max-width:60ch;margin:0 auto 30px}
.cta__actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ===========================================================
   CONTACTO
   =========================================================== */
.contact__grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:54px}
.contact-info .row{display:flex;gap:16px;align-items:flex-start;padding:18px 0;border-bottom:1px solid var(--line)}
.contact-info .row:first-of-type{padding-top:0}
.contact-info .ic{flex:0 0 auto;width:44px;height:44px;border-radius:12px;background:var(--green-950);display:grid;place-items:center}
.contact-info .ic svg{width:21px;height:21px;color:#a9e58a}
.contact-info .row b{display:block;font-size:13px;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-soft);font-weight:700;margin-bottom:3px}
.contact-info .row a,.contact-info .row span{font-size:16px;color:var(--ink);font-weight:600}
.socials{display:flex;gap:12px;margin-top:26px}
.socials a{width:46px;height:46px;border-radius:12px;border:1px solid var(--line);display:grid;place-items:center;color:var(--ink);transition:.25s var(--ease)}
.socials a:hover{background:var(--green);color:#fff;border-color:var(--green);transform:translateY(-3px)}
.socials svg{width:20px;height:20px}

.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px;box-shadow:var(--shadow-sm)}
.form .grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:15px;color:var(--ink);
  padding:13px 15px;border:1.5px solid var(--line);border-radius:11px;background:#fbfdfb;
  transition:border-color .2s,box-shadow .2s;
}
.field textarea{resize:vertical;min-height:120px}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--green);box-shadow:0 0 0 4px rgba(76,151,52,.12);background:#fff;
}
.form__note{font-size:12.5px;color:var(--ink-soft);margin:6px 0 0}
.form__ok{display:none;background:rgba(76,151,52,.1);border:1px solid rgba(76,151,52,.4);color:var(--green-700);border-radius:12px;padding:14px 16px;font-size:14.5px;font-weight:600;margin-bottom:16px}
.form__ok.show{display:block}
.form__ok.error{background:rgba(226,75,74,.08);border-color:rgba(226,75,74,.4);color:#a32d2d}

/* ===========================================================
   FOOTER
   =========================================================== */
.footer{background:var(--bg-dark);color:#aebcb2;padding:64px 0 28px}
.footer__top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:42px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer .logo{margin-bottom:16px}
.footer .logo .logo-img{height:26px}
.footer p{font-size:14px;color:#9fb0a4;max-width:34ch}
.footer h5{color:#fff;font-size:13px;letter-spacing:.1em;text-transform:uppercase;margin:0 0 16px;font-weight:700}
.footer ul li{margin-bottom:10px}
.footer ul a{font-size:14px;color:#aebcb2;transition:color .2s}
.footer ul a:hover{color:var(--yellow)}
.footer__bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:22px;font-size:13px;color:#7f8f84}

/* ===========================================================
   WHATSAPP FLOTANTE
   =========================================================== */
.wa-float{
  position:fixed;right:22px;bottom:22px;z-index:70;width:60px;height:60px;border-radius:50%;
  background:#25D366;display:grid;place-items:center;box-shadow:0 12px 30px -8px rgba(37,211,102,.7);
  transition:transform .25s var(--ease);
}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:32px;height:32px;color:#fff}
.wa-float img{width:32px;height:32px;display:block}

/* Volver arriba */
.to-top{position:fixed;right:22px;bottom:94px;z-index:69;width:46px;height:46px;border-radius:50%;border:0;cursor:pointer;background:var(--ink);color:#fff;display:grid;place-items:center;box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .25s var(--ease),transform .25s var(--ease),visibility .25s}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top svg{width:22px;height:22px}
.to-top:hover{background:#000}
.wa-float::after{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid #25D366;animation:pulse 2.4s infinite}
@keyframes pulse{0%{transform:scale(1);opacity:.7}100%{transform:scale(1.55);opacity:0}}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease);animation:reveal-safety .6s var(--ease) 1.6s forwards}
.reveal.in{opacity:1;transform:none;animation:none}
@keyframes reveal-safety{to{opacity:1;transform:none}}

/* ===========================================================
   MOBILE
   =========================================================== */
@media (max-width:980px){
  .hero__grid,.intro__grid,.diff__grid,.product-band,.contact__grid{grid-template-columns:1fr}
  .hero__media{order:-1;max-width:560px}
  .cards,.proj-grid{grid-template-columns:1fr 1fr}
  .ind-grid{grid-template-columns:repeat(3,1fr)}
  .footer__top{grid-template-columns:1fr 1fr}
  .diff__items{grid-template-columns:1fr 1fr}
}
@media (max-width:680px){
  body{font-size:16px}
  .section{padding:68px 0}
  .nav{display:none}
  .burger{display:flex}
  .header__cta{margin-left:auto}
  .header__cta .btn--wa,
  .header__cta .btn--primary{display:none}
  .logo .logo-on-dark,
  .header.is-solid .logo .logo-on-light{display:none}
  .logo .logo-iso{display:block}
  /* menú móvil */
  .nav.is-open{
    display:flex;position:fixed;inset:74px 0 auto 0;flex-direction:column;gap:0;
    background:#fff;padding:8px 0 16px;box-shadow:var(--shadow);border-top:1px solid var(--line);
  }
  .nav.is-open a{color:var(--ink);padding:15px 24px;width:100%;border-bottom:1px solid var(--line);font-size:16px}
  .nav.is-open a::after{display:none}
  .hero{padding:120px 0 64px}
  .hero__stats{gap:18px 28px}
  .hero__stat b{font-size:23px}
  .hero__badge{display:none}
  .cards,.proj-grid,.grid2,.diff__items{grid-template-columns:1fr}
  .ind-grid{grid-template-columns:repeat(2,1fr)}
  .footer__top{grid-template-columns:1fr}
  .form{padding:24px}
  .head-flex{align-items:flex-start}
}

/* ===========================================================
   PÁGINAS INTERNAS
   =========================================================== */
.page-hero{
  position:relative;color:#fff;padding:130px 0 58px;overflow:hidden;
  background:
    radial-gradient(120% 90% at 85% 0%, #1d3326 0%, rgba(29,51,38,0) 55%),
    linear-gradient(160deg,#0f1a14 0%,#13251a 60%,#0f1f12 100%);
}
.breadcrumb{display:flex;gap:9px;align-items:center;font-size:13px;color:#9fb3a4;margin-bottom:18px;flex-wrap:wrap}
.breadcrumb a{color:#a9e58a}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.45}
.page-hero h1{font-size:clamp(30px,4.6vw,46px);letter-spacing:-.03em;line-height:1.06;max-width:20ch}
.page-hero p.lead{color:#c2d1c6;margin:18px 0 0;max-width:62ch;font-size:clamp(16px,2vw,19px)}
.page-hero .eyebrow{color:#a9e58a}

/* Quiénes somos / contenido rico */
.split{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.rich h2{font-size:clamp(22px,3vw,30px);letter-spacing:-.025em;margin:0 0 16px}
.rich h3{font-size:19px;margin:30px 0 10px;letter-spacing:-.01em}
.rich p{color:var(--ink-soft);margin:0 0 16px}
.media-card img{border-radius:var(--radius-lg);box-shadow:var(--shadow);border:1px solid var(--line)}
.media-card .cap{font-size:13px;color:var(--ink-soft);margin-top:10px;text-align:center}

.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat-band .s{background:var(--bg-dark-2);border:1px solid rgba(255,255,255,.07);border-radius:14px;padding:24px}
.stat-band .s b{display:block;font-size:32px;font-weight:800;letter-spacing:-.02em;color:#fff}
.stat-band .s span{font-size:13.5px;color:#a7b8ad}

/* Ficha de producto */
.ficha-top{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:start}
.ficha-top__media{position:sticky;top:96px}
.ficha-top__media img{border-radius:var(--radius-lg);box-shadow:var(--shadow);border:1px solid var(--line)}
.ficha-top .lead{margin-bottom:22px}
.spec-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:8px}
.spec{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px}
.spec h4{font-size:15px;display:flex;align-items:center;gap:9px;margin:0 0 13px;letter-spacing:-.01em}
.spec h4 svg{width:18px;height:18px;color:var(--green);flex:0 0 auto}
.spec ul{display:grid;gap:9px}
.spec li{position:relative;padding-left:18px;font-size:14.5px;color:var(--ink);line-height:1.5}
.spec li::before{content:"";position:absolute;left:0;top:8px;width:7px;height:7px;border-radius:2px;background:var(--green)}
.cap-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
.cap-pills .chip{background:#fff}
.note{font-size:13px;color:var(--ink-soft);font-style:italic}

@media (max-width:980px){
  .split,.ficha-top{grid-template-columns:1fr}
  .ficha-top__media{position:static}
  .stat-band{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:680px){
  .page-hero{padding:116px 0 48px}
  .spec-grid{grid-template-columns:1fr}
  .stat-band{grid-template-columns:1fr 1fr}
}

/* Skip link (accesibilidad) */
.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:var(--green);color:#fff;padding:12px 18px;border-radius:0 0 10px 0;font-weight:700;text-decoration:none}
.skip-link:focus{left:0}
#contenido{scroll-margin-top:80px}

/* Respeta "reducir movimiento" */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal{opacity:1!important;transform:none!important}
}