/* ==========================================================================
   QUIMAAPII — sistema de diseño
   Tokens: navy/steel (identidad técnica) + cian de señal (cromatograma) +
   cobre (acento cálido, matching herrajes dorados de producto)
   Tipografía: Space Grotesk (display) / IBM Plex Sans (cuerpo) / IBM Plex Mono (datos)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --navy-900:#0B1626;
  --navy-800:#0F1F35;
  --navy-700:#16283F;
  --navy-600:#1E3350;
  --steel-500:#5B7690;
  --steel-300:#9FB3C4;
  --mist-50:#F3F6F9;
  --mist-100:#E8EEF3;
  --ink:#0B1220;
  --cyan-400:#22D3D9;
  --cyan-300:#7EE8EA;
  --copper-500:#C9793D;
  --copper-400:#E0985C;
  --white:#FFFFFF;

  --font-display:'Space Grotesk', sans-serif;
  --font-body:'IBM Plex Sans', sans-serif;
  --font-mono:'IBM Plex Mono', monospace;

  --max-w:1240px;
  --radius:2px;
  --ease:cubic-bezier(.16,.8,.24,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important;}
}

body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--mist-50);
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
}

img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{font-family:var(--font-display);margin:0 0 .5em;line-height:1.12;letter-spacing:-.01em;color:var(--navy-900);}
p{margin:0 0 1em;}
ul{margin:0;padding:0;}

:focus-visible{outline:2px solid var(--cyan-400);outline-offset:3px;}

.wrap{max-width:var(--max-w);margin:0 auto;padding:0 24px;}
@media (max-width:640px){.wrap{padding:0 20px;}}

.eyebrow{
  font-family:var(--font-mono);
  font-size:.75rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--cyan-400);
  display:inline-flex;
  align-items:center;
  gap:.6em;
  margin-bottom:1em;
}
.eyebrow::before{content:'';width:22px;height:1px;background:var(--cyan-400);display:inline-block;}

.btn{
  display:inline-flex;
  align-items:center;
  gap:.6em;
  font-family:var(--font-mono);
  font-size:.85rem;
  letter-spacing:.02em;
  padding:.95em 1.6em;
  border-radius:var(--radius);
  border:1px solid transparent;
  cursor:pointer;
  transition:all .25s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--cyan-400);color:var(--navy-900);font-weight:500;}
.btn-primary:hover{background:var(--cyan-300);transform:translateY(-1px);}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff;}
.btn-ghost:hover{border-color:var(--cyan-400);color:var(--cyan-400);}
.btn-dark{border-color:var(--navy-700);color:var(--navy-800);}
.btn-dark:hover{background:var(--navy-800);color:#fff;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:18px 0;
  transition:background .3s var(--ease),padding .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(11,22,38,.94);
  backdrop-filter:blur(8px);
  padding:12px 0;
  box-shadow:0 8px 30px rgba(0,0,0,.25);
}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand{display:flex;align-items:center;gap:10px;}
.brand img{height:34px;width:auto;filter:brightness(0) invert(1);}
.brand-fallback{font-family:var(--font-display);font-weight:700;font-size:1.25rem;color:#fff;letter-spacing:-.01em;}

.main-nav ul{display:flex;gap:2rem;list-style:none;}
.main-nav a{
  font-family:var(--font-mono);
  font-size:.82rem;
  letter-spacing:.03em;
  color:rgba(255,255,255,.75);
  text-transform:uppercase;
  position:relative;
  padding-bottom:4px;
}
.main-nav a::after{
  content:'';position:absolute;left:0;bottom:0;width:0;height:1px;
  background:var(--cyan-400);transition:width .25s var(--ease);
}
.main-nav a:hover,.main-nav a[aria-current="page"]{color:#fff;}
.main-nav a:hover::after,.main-nav a[aria-current="page"]::after{width:100%;}

.header-right{display:flex;align-items:center;gap:1.4rem;}
.header-phone{
  font-family:var(--font-mono);font-size:.82rem;color:#fff;
  display:flex;align-items:center;gap:.5em;
}
.header-phone svg{width:14px;height:14px;stroke:var(--cyan-400);}

.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:6px;}
.nav-toggle span{display:block;width:24px;height:2px;background:#fff;margin:5px 0;transition:transform .25s,opacity .25s;}

@media (max-width:920px){
  .main-nav{
    position:fixed;inset:0 0 0 auto;width:min(320px,80vw);height:100vh;
    background:var(--navy-900);padding:100px 32px 32px;
    transform:translateX(100%);transition:transform .35s var(--ease);
  }
  .main-nav.is-open{transform:translateX(0);}
  .main-nav ul{flex-direction:column;gap:1.6rem;}
  .header-phone{display:none;}
  .nav-toggle{display:block;}
  body.nav-open{overflow:hidden;}
}

/* ---------- hero ---------- */
.hero{
  position:relative;
  min-height:92vh;
  display:flex;
  align-items:center;
  color:#fff;
  background:var(--navy-900);
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(9,17,30,.97) 0%,rgba(9,17,30,.88) 32%,rgba(11,22,38,.55) 62%,rgba(11,22,38,.35) 100%);
}
.hero-inner{position:relative;z-index:2;padding-top:110px;padding-bottom:80px;}
.hero h1{
  font-size:clamp(2.3rem,4.6vw,4rem);
  color:#fff;
  max-width:14ch;
  margin-bottom:.4em;
}
.hero .lede{
  font-size:1.08rem;
  color:var(--steel-300);
  max-width:46ch;
  margin-bottom:2.2em;
}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:3rem;}

.hero-strip{
  position:relative;z-index:2;
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:1.6rem;
  display:flex;gap:clamp(1.5rem,4vw,3.5rem);flex-wrap:wrap;
}
.hero-strip .stat b{
  display:block;font-family:var(--font-display);font-size:1.6rem;color:var(--cyan-400);
}
.hero-strip .stat span{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--steel-300);
}

/* chromatogram signature line */
.chromatogram{display:block;width:100%;height:auto;}
.chromatogram path{
  fill:none;stroke:var(--cyan-400);stroke-width:2;
  stroke-dasharray:1400;stroke-dashoffset:1400;
  animation:draw 2.4s var(--ease) forwards .3s;
}
@keyframes draw{to{stroke-dashoffset:0;}}
.chromatogram.chromatogram-quiet path{stroke:var(--steel-300);opacity:.5;}

.divider-chroma{
  background:var(--navy-900);
  line-height:0;
}
.divider-chroma svg{width:100%;height:56px;display:block;}

/* ---------- sections ---------- */
section{padding:clamp(64px,9vw,120px) 0;}
.section-dark{background:var(--navy-900);color:#fff;}
.section-dark h2{color:#fff;}
.section-alt{background:var(--mist-100);}

.section-head{max-width:640px;margin-bottom:3rem;}
.section-head h2{font-size:clamp(1.8rem,3vw,2.5rem);}
.section-head p{color:var(--steel-500);font-size:1.02rem;}
.section-dark .section-head p{color:var(--steel-300);}

.grid{display:grid;gap:1.75rem;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
@media (max-width:920px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}}

/* value / category cards */
.card{
  background:#fff;border:1px solid var(--mist-100);border-radius:var(--radius);
  overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:0 20px 40px -20px rgba(11,22,38,.25);}
.card-media{aspect-ratio:4/3;overflow:hidden;background:var(--navy-800);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.card:hover .card-media img{transform:scale(1.06);}
.card-body{padding:1.6rem;}
.card-tag{
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--copper-500);margin-bottom:.6em;display:block;
}
.card h3{font-size:1.15rem;margin-bottom:.5em;}
.card p{color:var(--steel-500);font-size:.94rem;margin-bottom:0;}

/* value props (dark, no image) */
.value{padding:2rem 0;border-top:1px solid rgba(255,255,255,.1);}
.value:first-of-type{border-top:none;}
.value-row{display:grid;grid-template-columns:80px 1fr;gap:1.5rem;align-items:start;}
.value-num{font-family:var(--font-mono);color:var(--cyan-400);font-size:.85rem;padding-top:.3em;}
.value h3{color:#fff;font-size:1.2rem;}
.value p{color:var(--steel-300);margin:0;max-width:60ch;}

/* mission/vision/valores */
.pillar{
  background:#fff;padding:2.2rem;border-left:2px solid var(--cyan-400);
}
.pillar .eyebrow{color:var(--copper-500);}
.pillar .eyebrow::before{background:var(--copper-500);}
.pillar h3{font-size:1.3rem;}
.pillar p{color:var(--steel-500);margin:0;}

/* gallery */
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;}
@media (max-width:920px){.gallery-grid{grid-template-columns:repeat(3,1fr);}}
@media (max-width:640px){.gallery-grid{grid-template-columns:repeat(2,1fr);}}
.gallery-item{position:relative;aspect-ratio:1/1;overflow:hidden;cursor:zoom-in;background:var(--navy-800);}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.gallery-item:hover img{transform:scale(1.08);}
.gallery-item::after{
  content:'';position:absolute;inset:0;background:linear-gradient(0deg,rgba(11,22,38,.55),transparent 45%);
  opacity:0;transition:opacity .3s;
}
.gallery-item:hover::after{opacity:1;}

.lightbox{
  position:fixed;inset:0;z-index:200;background:rgba(9,15,26,.94);
  display:none;align-items:center;justify-content:center;padding:5vw;
}
.lightbox.is-open{display:flex;}
.lightbox img{max-width:90vw;max-height:85vh;object-fit:contain;border:1px solid rgba(255,255,255,.1);}
.lightbox-close{
  position:absolute;top:24px;right:28px;background:none;border:0;color:#fff;
  font-family:var(--font-mono);font-size:.9rem;cursor:pointer;display:flex;gap:.5em;align-items:center;
}

/* contact */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:3.5rem;}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr;}}
.field{margin-bottom:1.3rem;}
.field label{
  display:block;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;
  color:var(--steel-500);margin-bottom:.5em;
}
.field input,.field textarea{
  width:100%;padding:.9em 1em;border:1px solid var(--mist-100);background:#fff;
  font-family:var(--font-body);font-size:.96rem;color:var(--ink);border-radius:var(--radius);
  transition:border-color .2s;
}
.field input:focus,.field textarea:focus{border-color:var(--cyan-400);outline:none;}
.field textarea{resize:vertical;min-height:130px;}
.hp-field{position:absolute;left:-9999px;}

.info-card{background:var(--navy-900);color:#fff;padding:2.4rem;border-radius:var(--radius);}
.info-card h3{color:#fff;font-size:1.15rem;}
.info-list{list-style:none;margin:1.6rem 0 0;display:flex;flex-direction:column;gap:1.2rem;}
.info-list li{display:flex;gap:.9em;align-items:flex-start;font-size:.92rem;color:var(--steel-300);}
.info-list svg{width:17px;height:17px;flex-shrink:0;margin-top:2px;stroke:var(--cyan-400);}
.info-list a{color:#fff;}
.info-list a:hover{color:var(--cyan-400);}
.social-row{display:flex;gap:.9rem;margin-top:1.8rem;}
.social-row a{
  width:36px;height:36px;border:1px solid rgba(255,255,255,.25);border-radius:50%;
  display:flex;align-items:center;justify-content:center;transition:border-color .2s,background .2s;
}
.social-row a:hover{border-color:var(--cyan-400);background:rgba(34,211,217,.1);}
.social-row svg{width:16px;height:16px;stroke:#fff;}

.form-note{font-size:.78rem;color:var(--steel-500);margin-top:.4rem;}
.form-status{font-family:var(--font-mono);font-size:.85rem;padding:.9em 1.1em;border-radius:var(--radius);margin-bottom:1.2rem;display:none;}
.form-status.is-visible{display:block;}
.form-status.ok{background:#E7F7F3;color:#0F7A5C;}
.form-status.err{background:#FBEAEA;color:#B23A3A;}

/* footer */
.site-footer{background:var(--navy-900);color:var(--steel-300);padding:64px 0 28px;}
.footer-top{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:2.5rem;padding-bottom:2.5rem;border-bottom:1px solid rgba(255,255,255,.1);}
@media (max-width:760px){.footer-top{grid-template-columns:1fr;}}
.footer-brand img{height:30px;filter:brightness(0) invert(1);margin-bottom:1rem;}
.footer-brand p{font-size:.88rem;max-width:34ch;}
.footer-col h4{
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;
  color:#fff;margin-bottom:1.1em;
}
.footer-col ul{display:flex;flex-direction:column;gap:.7em;}
.footer-col a{font-size:.9rem;}
.footer-col a:hover{color:var(--cyan-400);}
.footer-bottom{
  padding-top:1.8rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;
  font-family:var(--font-mono);font-size:.76rem;color:var(--steel-500);
}

/* page hero (interior pages) */
.page-hero{
  position:relative;min-height:52vh;display:flex;align-items:flex-end;color:#fff;background:var(--navy-900);overflow:hidden;
}
.page-hero .hero-bg::after{
  background:
    linear-gradient(0deg,rgba(9,17,30,.96) 0%,rgba(9,17,30,.5) 60%,rgba(9,17,30,.2) 100%),
    linear-gradient(100deg,rgba(9,17,30,.96) 0%,rgba(9,17,30,.85) 40%,rgba(11,22,38,.5) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:150px 0 3.5rem;}
.page-hero h1{font-size:clamp(2rem,4vw,3.1rem);max-width:16ch;color:#fff;}
.page-hero .lede{color:var(--steel-300);max-width:52ch;font-size:1rem;margin:0;}
.breadcrumb{font-family:var(--font-mono);font-size:.75rem;color:var(--steel-300);margin-bottom:1.2rem;}
.breadcrumb a:hover{color:var(--cyan-400);}

/* legal */
.legal-body{max-width:74ch;}
.legal-body h2{font-size:1.3rem;margin-top:2em;}
.legal-body ul{margin:0 0 1.2em 1.3em;list-style:disc;}
.legal-body li{margin-bottom:.4em;color:var(--steel-500);}
.legal-body p{color:var(--steel-500);}
.legal-meta{font-family:var(--font-mono);font-size:.78rem;color:var(--steel-500);margin-bottom:2.5rem;}

/* misc */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center;}
@media (max-width:860px){.two-col{grid-template-columns:1fr;}}
.tag-row{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.5rem;}
.tag{
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.03em;color:var(--navy-700);
  border:1px solid var(--mist-100);background:#fff;padding:.5em .9em;border-radius:var(--radius);
}

.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease);}
.js .reveal.is-visible{opacity:1;transform:translateY(0);}