/* ===== IA Safe Future 2020 — tema "Paso de cebra" (claro institucional) ===== */
@font-face{font-family:'Public Sans';font-style:normal;font-weight:400;font-display:swap;src:url('fonts/public-sans-latin-400-normal.woff2') format('woff2')}
@font-face{font-family:'Public Sans';font-style:normal;font-weight:500;font-display:swap;src:url('fonts/public-sans-latin-500-normal.woff2') format('woff2')}
@font-face{font-family:'Public Sans';font-style:normal;font-weight:600;font-display:swap;src:url('fonts/public-sans-latin-600-normal.woff2') format('woff2')}
@font-face{font-family:'Public Sans';font-style:normal;font-weight:700;font-display:swap;src:url('fonts/public-sans-latin-700-normal.woff2') format('woff2')}
@font-face{font-family:'Public Sans';font-style:normal;font-weight:800;font-display:swap;src:url('fonts/public-sans-latin-800-normal.woff2') format('woff2')}

:root{
  --paper:#F7F8FA; --card:#FFFFFF; --ink:#10151B; --steel:#274A5B;
  --slate:#5C6773; --gold:#F7B215; --gold-hi:#ffbf2e; --gold-deep:#B97E05;
  --line:#E4E8EC; --wa:#25D366; --wa-dark:#1EBE5A;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:clip;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);
  font-family:"Public Sans",Arial,Helvetica,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:clip}
h1,h2,h3{margin:0;line-height:1.1;letter-spacing:-.01em;overflow-wrap:break-word}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%}
.wrap{width:min(1180px,92%);margin:auto}
:focus-visible{outline:2px solid var(--steel);outline-offset:3px;border-radius:3px}

/* ---- header / nav ---- */
header{position:sticky;top:0;z-index:30;background:rgba(247,248,250,.92);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;min-height:78px}
.brand img{height:50px;width:auto;display:block}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{color:var(--slate);font-weight:600;font-size:15px;padding:6px 0;border-bottom:2px solid transparent}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--ink);border-bottom-color:var(--gold)}
.nav-cta{background:var(--gold);color:#17120A;padding:10px 18px;border-radius:8px;font-weight:700;border-bottom:0!important}
.nav-cta:hover{background:var(--gold-hi)}
.menu-btn{display:none;background:none;border:1px solid var(--line);color:var(--ink);
  border-radius:8px;padding:9px 12px;font:inherit;cursor:pointer}

/* ---- buttons ---- */
.btn{display:inline-block;background:var(--gold);color:#17120A;font-weight:700;
  padding:15px 26px;border-radius:9px;border:1px solid var(--gold)}
.btn:hover{background:var(--gold-hi)}
.btn-wa{display:inline-flex;align-items:center;gap:10px;background:var(--wa);color:#fff;
  font-weight:700;padding:15px 22px;border-radius:9px;border:1px solid var(--wa)}
.btn-wa:hover{background:var(--wa-dark);border-color:var(--wa-dark)}
.btn-wa svg{width:20px;height:20px;flex:none}

/* ---- sections ---- */
.section{padding:84px 0}
.section.alt{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{text-align:center;max-width:820px;margin:0 auto 48px}
.eyebrow{color:var(--steel);font-weight:700;font-size:14px;margin-bottom:10px}
.section h2{font-size:clamp(30px,3.8vw,46px);font-weight:800}
.section-head p{color:var(--slate);font-size:18px;max-width:60ch;margin:14px auto 0}

/* ---- hero (home) ---- */
.hero{padding:74px 0 0}
.hero h1{font-size:clamp(40px,5.6vw,70px);font-weight:800;max-width:15ch}
.hero p{color:var(--slate);font-size:20px;max-width:52ch;margin:22px 0 0}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin:34px 0 0}
.crosswalk{height:26px;margin:48px 0 0;border-radius:4px;overflow:hidden;
  background:repeating-linear-gradient(90deg,var(--gold) 0 26px,var(--ink) 26px 52px)}
.shot{margin-top:22px;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  background:#000;box-shadow:0 20px 50px rgba(16,21,27,.12)}
.shot iframe{display:block;width:100%;aspect-ratio:16/9;border:0}

/* ---- split + visual ---- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.viz{background:#EDF1F4;border:1px solid var(--line);border-radius:16px;padding:26px}
.viz svg{width:100%;display:block}

/* ---- bullet list ---- */
.list{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:14px}
.list li{position:relative;padding-left:30px;font-weight:600;color:var(--ink)}
.list li:before{content:"";position:absolute;left:0;top:4px;width:10px;height:18px;background:var(--gold);border-radius:2px}

/* ---- cards (servicios) ---- */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px;
  min-height:218px;box-shadow:0 10px 30px rgba(16,21,27,.06)}
.card:hover{border-color:rgba(247,178,21,.6)}
.card .icon{font-size:32px;color:var(--gold);line-height:1}
.card h3{margin:14px 0 10px;font-size:22px;font-weight:800}
.card p{color:var(--slate);font-size:16px;margin:0}

/* ---- regions / chips / stats (proyectos) ---- */
.region{margin-bottom:40px}
.region h3{text-align:center;font-size:26px;font-weight:800;margin-bottom:16px}
.chips{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}
.chip{background:var(--card);border:1px solid var(--line);border-radius:9px;padding:10px 18px;font-weight:600;color:var(--ink)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;background:var(--card);
  border:1px solid var(--line);border-radius:16px;padding:30px;text-align:center;box-shadow:0 10px 30px rgba(16,21,27,.06)}
.stat strong{display:block;color:var(--gold);font-size:38px;font-weight:800;line-height:1.1}
.stat span{color:var(--steel);font-weight:600}

/* ---- products (productos) ---- */
.product{margin-bottom:70px}
.product:last-child{margin-bottom:0}
.product .eyebrow{display:block;margin-bottom:6px}
.product h3{font-size:28px;font-weight:800;margin:0 0 16px}
.product>p{color:var(--slate);font-size:18px;max-width:860px}
.sheet{width:100%;display:block;border-radius:16px;border:1px solid var(--line);margin:0 0 28px;box-shadow:0 14px 36px rgba(16,21,27,.1)}
.specs-title{color:var(--steel);font-weight:800;font-size:18px;margin:26px 0 10px}
.spec{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.spec th,.spec td{text-align:left;padding:13px 18px;border-bottom:1px solid var(--line);font-size:16px;vertical-align:top}
.spec th{color:var(--steel);font-weight:800;width:42%}
.spec td{color:var(--ink)}
.spec tr:last-child th,.spec tr:last-child td{border-bottom:0}

/* ---- form (contacto) ---- */
.form{max-width:800px;margin:auto}
form.card{min-height:0}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field label{font-weight:700;color:var(--ink);font-size:14px}
.full{grid-column:1/-1}
.field input,.field textarea{background:var(--card);color:var(--ink);border:1px solid var(--line);
  border-radius:9px;padding:13px;font:inherit}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--steel);box-shadow:0 0 0 3px rgba(39,74,91,.14)}
.field textarea{min-height:150px;resize:vertical}
.form-note{color:var(--slate);font-size:13px;margin-top:14px}

/* ---- cta block ---- */
.cta{text-align:center;margin-top:60px}
.cta p{color:var(--slate);font-size:18px;margin:0 0 6px}

/* ---- WhatsApp floating button ---- */
.wa-fab{position:fixed;right:22px;bottom:calc(22px + env(safe-area-inset-bottom,0px));z-index:50;
  width:58px;height:58px;border-radius:50%;background:var(--wa);display:flex;align-items:center;justify-content:center;
  box-shadow:0 12px 28px rgba(37,211,102,.42);transition:transform .15s ease,background .15s ease}
.wa-fab:hover{background:var(--wa-dark);transform:translateY(-2px)}
.wa-fab svg{width:32px;height:32px;color:#fff}

/* ---- footer ---- */
.xwalk-thin{height:8px;background:repeating-linear-gradient(90deg,var(--gold) 0 14px,var(--ink) 14px 28px)}
footer{background:var(--card);padding:40px 0;color:var(--slate)}
.foot{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:center}
.brandline strong{color:var(--ink);font-weight:800}
.brandline span{display:block;color:var(--slate);font-weight:400;font-size:14px}
.foot a{color:var(--steel);font-weight:700}
.foot a:hover{color:var(--gold-deep)}

/* ---- helpers for split text blocks (home about, innovación) ---- */
.split h3{font-size:28px;font-weight:800;margin:0 0 14px}
.lead{color:var(--slate);font-size:18px;max-width:52ch;margin:0}

/* ---- responsive ---- */
@media(max-width:900px){
  .grid{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
}
@media(max-width:700px){
  .nav-links{display:none;position:absolute;top:78px;left:0;right:0;background:var(--card);
    border-bottom:1px solid var(--line);flex-direction:column;gap:4px;padding:16px 4%}
  .nav-links.open{display:flex}
  .nav-links a{padding:10px 0}
  .menu-btn{display:block}
  .brand img{height:44px}
  .grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .section{padding:62px 0}
  .hero{padding:48px 0 0}
  .form-grid{grid-template-columns:1fr}
  .full{grid-column:auto}
  .btn,.btn-wa{width:100%;justify-content:center;text-align:center}
  .wa-fab{right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));width:54px;height:54px}
  .wa-fab svg{width:30px;height:30px}
  .spec,.spec tbody,.spec tr,.spec th,.spec td{display:block;width:auto}
  .spec th{border-bottom:0;padding-bottom:4px}
  .spec td{padding-top:0;border-bottom:1px solid var(--line)}
  .spec tr:last-child td{border-bottom:0}
}