/* =========================================================================
   LAIQ — Laboratorio de Análisis Instrumental y Químico
   Sistema de diseño: "Núcleo de muestra"
   Paleta inspirada en las tres matrices que analiza el laboratorio
   (agua, aire, suelo) más el tono instrumental de graficadores y HPLC.
   ========================================================================= */

/* =========================================================================
   Tipografía auto-alojada (sin dependencias externas / CDN)
   ========================================================================= */
@font-face{
  font-family:'Space Grotesk';
  font-style:normal; font-weight:500;
  font-display:swap;
  src: url('../assets/fonts/space-grotesk-latin-500-normal.woff2') format('woff2');
}
@font-face{
  font-family:'Space Grotesk';
  font-style:normal; font-weight:600;
  font-display:swap;
  src: url('../assets/fonts/space-grotesk-latin-600-normal.woff2') format('woff2');
}
@font-face{
  font-family:'Space Grotesk';
  font-style:normal; font-weight:700;
  font-display:swap;
  src: url('../assets/fonts/space-grotesk-latin-700-normal.woff2') format('woff2');
}
@font-face{
  font-family:'IBM Plex Sans';
  font-style:normal; font-weight:400;
  font-display:swap;
  src: url('../assets/fonts/ibm-plex-sans-latin-400-normal.woff2') format('woff2');
}
@font-face{
  font-family:'IBM Plex Sans';
  font-style:normal; font-weight:500;
  font-display:swap;
  src: url('../assets/fonts/ibm-plex-sans-latin-500-normal.woff2') format('woff2');
}
@font-face{
  font-family:'IBM Plex Sans';
  font-style:normal; font-weight:600;
  font-display:swap;
  src: url('../assets/fonts/ibm-plex-sans-latin-600-normal.woff2') format('woff2');
}
@font-face{
  font-family:'IBM Plex Mono';
  font-style:normal; font-weight:400;
  font-display:swap;
  src: url('../assets/fonts/ibm-plex-mono-latin-400-normal.woff2') format('woff2');
}
@font-face{
  font-family:'IBM Plex Mono';
  font-style:normal; font-weight:500;
  font-display:swap;
  src: url('../assets/fonts/ibm-plex-mono-latin-500-normal.woff2') format('woff2');
}

:root{
  /* --- color: base --- */
  --ink:        #0A1512;   /* fondo oscuro, negro-verdoso de acuífero */
  --ink-2:      #0F1E1A;
  --panel:      #12241F;   /* paneles/tarjetas sobre fondo oscuro */
  --panel-2:    #17302A;
  --paper:      #ECEEE6;   /* fondo claro, gris-verdoso de papel de laboratorio */
  --paper-2:    #E2E6DB;
  --line:       rgba(236,238,230,0.14);
  --line-strong:rgba(236,238,230,0.28);
  --line-dark:  rgba(10,21,18,0.12);

  /* --- rgb planos: paneles "vidrio esmerilado" sobre el fondo 3D fijo --- */
  --ink-rgb:     10,21,18;
  --panel-rgb:   18,36,31;
  --paper-rgb:   236,238,230;
  --paper-2-rgb: 226,230,219;

  /* --- color: matrices (acentos) --- */
  --agua:       #2FB8A6;   /* agua y efluentes */
  --agua-dim:   #1F6E64;
  --aire:       #7FA1C4;   /* calidad de aire / emisiones */
  --aire-dim:   #4E6C87;
  --suelo:      #B8863E;   /* suelos, sedimentos, lodos */
  --suelo-dim:  #7A5A2A;
  --petroleo:      #C98A3F;  /* petróleo / oil & gas, tono ámbar sobre negro */
  --petroleo-dim:  #8A5A22;

  /* --- texto --- */
  --text-on-dark:     #ECEEE6;
  --text-on-dark-dim: rgba(236,238,230,0.68);
  --text-on-light:    #0F211C;
  --text-on-light-dim:rgba(15,33,28,0.66);

  /* --- tipografía --- */
  --f-display: 'Space Grotesk', 'Arial Narrow', sans-serif;
  --f-body:    'IBM Plex Sans', -apple-system, sans-serif;
  --f-mono:    'IBM Plex Mono', 'Courier New', monospace;

  /* --- escala espacial --- */
  --gap-xs: 0.5rem;
  --gap-sm: 1rem;
  --gap-md: 2rem;
  --gap-lg: 4rem;
  --gap-xl: 7rem;

  --radius-sm: 4px;
  --radius-md: 10px;
  --max-w: 1220px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body{
  margin:0;
  background: var(--ink);
  color: var(--text-on-light);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* =========================================================================
   Fondo 3D persistente ("acuario instrumental")
   Canvas fijo a pantalla completa, siempre detrás del contenido. Las
   secciones flotan encima como paneles de vidrio esmerilado (ver más abajo)
   para que el fondo cambie de escena con el scroll sin perder legibilidad.
   ========================================================================= */
#bg3d{
  position: fixed;
  inset: 0;
  width: 100vw; height: 100vh;
  z-index: -1;
  display:block;
  background: radial-gradient(120% 100% at 78% 0%, #123028 0%, var(--ink) 60%);
}
html.no-webgl #bg3d{
  background:
    repeating-linear-gradient(180deg,
      rgba(127,161,196,0.30) 0 20%,
      rgba(47,184,166,0.30) 20% 50%,
      rgba(184,134,62,0.30) 50% 75%,
      rgba(201,138,63,0.32) 75% 100%);
}

img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family: var(--f-display); margin:0; letter-spacing:-0.01em; }
p{ margin:0; }

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

.container{
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gap-md);
}
@media (max-width: 640px){
  .container{ padding: 0 var(--gap-sm); }
}

.eyebrow{
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  color: var(--agua-dim);
}
.eyebrow::before{
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 3px rgba(47,184,166,0.18);
}
.on-dark .eyebrow{ color: var(--agua); }

/* =========================================================================
   Botones
   ========================================================================= */
.btn{
  font-family: var(--f-mono);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.85em 1.4em;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
  white-space: nowrap;
}
.btn-primary{
  background: var(--agua);
  color: #06211D;
}
.btn-primary:hover{ transform: translateY(-2px); background:#3FCCB9; }
.btn-ghost{
  background: transparent;
  border-color: var(--line-dark);
  color: var(--text-on-light);
}
.btn-ghost:hover{ border-color: var(--text-on-light); }
.on-dark .btn-ghost{ border-color: var(--line); color: var(--text-on-dark); }
.on-dark .btn-ghost:hover{ border-color: var(--text-on-dark); }
.btn::after{ content:"→"; transition: transform 0.25s var(--ease); }
.btn:hover::after{ transform: translateX(3px); }

/* =========================================================================
   Header / navegación
   ========================================================================= */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,21,18,0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height: 76px;
}
.brand{
  display:flex;
  align-items:center;
  gap: 0.7rem;
  color: var(--text-on-dark);
}
.brand-mark{
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(236,238,230,0.06);
  display:flex; align-items:center; justify-content:center;
  padding: 6px;
  flex-shrink:0;
}
.brand-mark img{ width:100%; height:100%; object-fit:contain; display:block; }
.brand-text{ display:flex; flex-direction:column; line-height:1.15; }
.brand-text strong{ font-family: var(--f-display); font-size:1.02rem; font-weight:600; }
.brand-text span{ font-family: var(--f-mono); font-size:0.62rem; letter-spacing:0.08em; color: var(--text-on-dark-dim); text-transform:uppercase; }

.main-nav{ display:flex; align-items:center; gap: var(--gap-lg); }
.main-nav ul{ display:flex; gap: var(--gap-md); }
.main-nav a{
  font-family: var(--f-mono);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  color: var(--text-on-dark-dim);
  position: relative;
  padding: 0.3em 0;
  transition: color 0.2s var(--ease);
}
.main-nav a:hover, .main-nav a.active{ color: var(--text-on-dark); }
.main-nav a.active::after{
  content:"";
  position:absolute; left:0; right:0; bottom:-4px;
  height:2px; background: var(--agua);
}
.nav-cta{ display:flex; align-items:center; gap: var(--gap-md); }

.nav-toggle{
  display:none;
  background:none; border:none; color: var(--text-on-dark);
  width: 40px; height:40px;
  cursor:pointer;
}
.nav-toggle svg{ width:22px; height:22px; }

@media (max-width: 880px){
  .main-nav{
    position: fixed; inset: 76px 0 0 0;
    background: var(--ink);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--gap-lg) var(--gap-sm);
    transform: translateX(100%);
    transition: transform 0.35s var(--ease);
    gap: var(--gap-lg);
  }
  .main-nav.open{ transform: translateX(0); }
  .main-nav ul{ flex-direction:column; gap: var(--gap-md); width:100%; }
  .main-nav a{ font-size:1.1rem; }
  .nav-toggle{ display:flex; align-items:center; justify-content:center; }
}

/* =========================================================================
   Hero
   ========================================================================= */
.hero{
  position: relative;
  background: linear-gradient(100deg, rgba(var(--ink-rgb),0.62) 0%, rgba(var(--ink-rgb),0.28) 55%, rgba(var(--ink-rgb),0.1) 85%);
  color: var(--text-on-dark);
  overflow: hidden;
  padding: var(--gap-xl) 0 var(--gap-lg);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}
.hero-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(75% 65% at 70% 30%, black 15%, transparent 75%);
  opacity: 0.4;
  pointer-events:none;
}
.hero .container{ position:relative; }
.hero-copy{ max-width: 640px; }
.hero h1{
  font-size: clamp(2.3rem, 4.6vw, 3.8rem);
  font-weight: 600;
  line-height: 1.04;
  margin: 0.5em 0 0.55em;
}
.hero h1 em{
  font-style: normal;
  color: var(--agua);
}
.hero p.lede{
  max-width: 46ch;
  color: var(--text-on-dark-dim);
  font-size: 1.05rem;
}
.hero-actions{ display:flex; gap: var(--gap-sm); margin-top: var(--gap-md); flex-wrap:wrap; }

.hero-stats{
  display:flex; gap: var(--gap-lg);
  margin-top: var(--gap-lg);
  border-top: 1px solid var(--line);
  padding-top: var(--gap-md);
}
.hero-stats div strong{
  font-family: var(--f-display);
  font-size: 1.9rem;
  display:block;
  color: var(--text-on-dark);
}
.hero-stats div span{
  font-family: var(--f-mono);
  font-size: 0.72rem;
  color: var(--text-on-dark-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.telemetry{
  display:inline-flex;
  margin-top: var(--gap-md);
  font-family: var(--f-mono);
  font-size: 0.72rem;
  color: var(--agua);
  background: rgba(10,21,18,0.55);
  border: 1px solid var(--line);
  padding: 0.5em 0.8em;
  border-radius: var(--radius-sm);
  backdrop-filter: blur(4px);
}

/* =========================================================================
   Secciones generales
   ========================================================================= */
section{
  padding: var(--gap-xl) 0;
  position: relative;
  z-index: 1;
  background: rgba(var(--paper-rgb), 0.92);
  backdrop-filter: blur(20px) saturate(1.1);
  -webkit-backdrop-filter: blur(20px) saturate(1.1);
}
.section-head{
  max-width: 640px;
  margin-bottom: var(--gap-lg);
}
.section-head h2{
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  margin-top: 0.4em;
}
.section-head p{ margin-top:1em; color: var(--text-on-light-dim); font-size:1.05rem; }
.on-dark .section-head p{ color: var(--text-on-dark-dim); }

.section-alt{ background: rgba(var(--paper-2-rgb), 0.92); }
.section-dark{ background: rgba(var(--ink-rgb), 0.84); color: var(--text-on-dark); }
.section-panel{ background: rgba(15,30,26,0.86); color: var(--text-on-dark); }

/* =========================================================================
   Matrices (tabs tipo selector de canal de instrumento)
   ========================================================================= */
.matrix-tabs{
  display:flex;
  gap: 0.4rem;
  flex-wrap:wrap;
  margin-bottom: var(--gap-md);
  border-bottom: 1px solid var(--line-dark);
  padding-bottom: var(--gap-sm);
}
.on-dark .matrix-tabs{ border-color: var(--line); }
.matrix-tab{
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  padding: 0.6em 1em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-dark);
  background: transparent;
  color: var(--text-on-light-dim);
  cursor:pointer;
  transition: all 0.2s var(--ease);
  display:flex; align-items:center; gap:0.5em;
}
.on-dark .matrix-tab{ border-color: var(--line); color: var(--text-on-dark-dim); }
.matrix-tab .dot{ width:7px; height:7px; border-radius:50%; background: currentColor; }
.matrix-tab[data-tab="agua"].is-active{ background: var(--agua); border-color: var(--agua); color:#06211D; }
.matrix-tab[data-tab="aire"].is-active{ background: var(--aire); border-color: var(--aire); color:#0B1B29; }
.matrix-tab[data-tab="suelo"].is-active{ background: var(--suelo); border-color: var(--suelo); color:#241705; }
.matrix-tab[data-tab="industria"].is-active{ background: var(--text-on-light); border-color: var(--text-on-light); color: var(--paper); }
.on-dark .matrix-tab[data-tab="industria"].is-active{ background: var(--text-on-dark); color: var(--ink); }

.matrix-panel{ display:none; }
.matrix-panel.is-active{ display:grid; grid-template-columns: 1fr 1fr; gap: var(--gap-lg); }
@media (max-width: 820px){ .matrix-panel.is-active{ grid-template-columns: 1fr; } }

.matrix-panel h3{ font-size: 1.35rem; margin-bottom:0.5em; }
.matrix-panel .lede-small{ color: var(--text-on-light-dim); margin-bottom: 1.2em; }
.on-dark .matrix-panel .lede-small{ color: var(--text-on-dark-dim); }

.checklist{ display:flex; flex-direction:column; gap: 0.85em; }
.checklist li{
  display:flex; gap:0.8em; align-items:flex-start;
  font-size: 0.96rem;
}
.checklist li::before{
  content:"";
  flex-shrink:0;
  margin-top: 0.45em;
  width: 6px; height: 6px;
  border-radius:1px;
  background: var(--agua);
  transform: rotate(45deg);
}

/* =========================================================================
   Grillas de servicios / tarjetas
   ========================================================================= */
.card-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-sm);
}
@media (max-width: 900px){ .card-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 560px){ .card-grid{ grid-template-columns: 1fr; } }

.service-card{
  background: var(--paper);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-md);
  padding: var(--gap-md);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow .3s var(--ease);
}
.on-dark .service-card, .section-panel .service-card{
  background: var(--panel);
  border-color: var(--line);
}
.service-card:hover{
  transform: translateY(-4px);
  border-color: var(--agua);
  box-shadow: 0 18px 40px -24px rgba(47,184,166,0.45);
}
.service-card .tag{
  font-family: var(--f-mono);
  font-size: 0.68rem;
  letter-spacing:0.06em;
  text-transform:uppercase;
  color: var(--agua-dim);
}
.on-dark .service-card .tag, .section-panel .service-card .tag{ color: var(--agua); }
.service-card h3{ font-size:1.12rem; margin: 0.5em 0 0.4em; }
.service-card p{ font-size:0.92rem; color: var(--text-on-light-dim); }
.on-dark .service-card p, .section-panel .service-card p{ color: var(--text-on-dark-dim); }

/* =========================================================================
   Franja de núcleo/estratos (visual de suelo, sedimento, agua, aire)
   ========================================================================= */
.strata-band{
  display:flex; height: 10px; border-radius: 6px; overflow:hidden;
  margin: var(--gap-md) 0;
}
.strata-band span{ flex:1; }
.strata-band .b-aire{ background: var(--aire); }
.strata-band .b-agua{ background: var(--agua); }
.strata-band .b-suelo{ background: var(--suelo); }
.strata-band .b-industria{ background: var(--text-on-light-dim); }

/* =========================================================================
   Franja de confianza / clientes
   ========================================================================= */
.trust-strip{
  display:flex; flex-wrap:wrap; gap: 0.6rem;
}
.trust-chip{
  font-family: var(--f-mono);
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  padding: 0.6em 1em;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  color: var(--text-on-light-dim);
}
.on-dark .trust-chip{ border-color: var(--line); color: var(--text-on-dark-dim); }

/* =========================================================================
   Certificaciones
   ========================================================================= */
.certs{ display:grid; grid-template-columns: repeat(2,1fr); gap: var(--gap-sm); }
@media (max-width:700px){ .certs{ grid-template-columns:1fr; } }
.cert-card{
  display:flex; gap: var(--gap-sm); align-items:flex-start;
  background: var(--panel); border:1px solid var(--line);
  border-radius: var(--radius-md); padding: var(--gap-md);
}
.cert-badge{
  flex-shrink:0; width:52px; height:52px; border-radius:50%;
  border: 1.5px solid var(--agua); color: var(--agua);
  display:flex; align-items:center; justify-content:center;
  font-family: var(--f-mono); font-size:0.7rem;
}
.cert-card h4{ font-family: var(--f-display); font-size:1.05rem; margin-bottom:0.3em; }
.cert-card p{ font-size:0.9rem; color: var(--text-on-dark-dim); }

/* =========================================================================
   Timeline (Quiénes somos)
   ========================================================================= */
.timeline{
  display:flex; flex-direction:column; gap: var(--gap-md);
  border-left: 1px solid var(--line-dark);
  padding-left: var(--gap-md);
}
.on-dark .timeline{ border-color: var(--line); }
.timeline li{ position:relative; }
.timeline li::before{
  content:"";
  position:absolute; left: calc(-1 * var(--gap-md) - 4px); top:6px;
  width:8px; height:8px; border-radius:50%;
  background: var(--agua);
}
.timeline .t-label{ font-family: var(--f-mono); font-size:0.72rem; color: var(--agua-dim); text-transform:uppercase; letter-spacing:0.05em;}
.on-dark .timeline .t-label{ color: var(--agua); }
.timeline h4{ font-size:1.1rem; margin: 0.25em 0 0.3em; }
.timeline p{ color: var(--text-on-light-dim); font-size:0.94rem; }
.on-dark .timeline p{ color: var(--text-on-dark-dim); }

/* Misión / visión */
.mv-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: var(--gap-md); }
@media (max-width:800px){ .mv-grid{ grid-template-columns:1fr; } }
.mv-card{
  background: var(--paper); border: 1px solid var(--line-dark);
  border-radius: var(--radius-md); padding: var(--gap-lg) var(--gap-md);
  position:relative; overflow:hidden;
}
.mv-card::before{
  content:""; position:absolute; top:0; left:0; right:0; height:3px;
}
.mv-card.mv-mission::before{ background: var(--agua); }
.mv-card.mv-vision::before{ background: var(--suelo); }
.mv-card .eyebrow{ margin-bottom:0.8em; }
.mv-card p{ font-size:1.02rem; color: var(--text-on-light-dim); }

/* =========================================================================
   CTA final
   ========================================================================= */
.cta-band{
  background: var(--ink);
  color: var(--text-on-dark);
  border-radius: var(--radius-md);
  padding: var(--gap-lg) var(--gap-md);
  display:flex; align-items:center; justify-content:space-between; gap: var(--gap-md);
  flex-wrap:wrap;
  position:relative;
  overflow:hidden;
}
.cta-band h2{ font-size: clamp(1.5rem,3vw,2.1rem); max-width: 24ch; }
.cta-band .strata-band{ position:absolute; left:0; right:0; bottom:0; margin:0; border-radius:0; }

/* =========================================================================
   Formulario de contacto
   ========================================================================= */
.contact-layout{
  display:grid; grid-template-columns: 1fr 1fr; gap: var(--gap-lg);
}
@media (max-width: 880px){ .contact-layout{ grid-template-columns:1fr; } }

.field{ margin-bottom: var(--gap-sm); display:flex; flex-direction:column; gap:0.5em; }
.field label{
  font-family: var(--f-mono); font-size:0.72rem; letter-spacing:0.05em;
  text-transform:uppercase; color: var(--text-on-light-dim);
}
.field input, .field textarea{
  font-family: var(--f-body);
  font-size: 1rem;
  padding: 0.85em 1em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-dark);
  background: var(--paper);
  color: var(--text-on-light);
  resize: vertical;
  transition: border-color 0.2s var(--ease);
}
.field input:focus, .field textarea:focus{ border-color: var(--agua); }
.form-note{ font-size:0.82rem; color: var(--text-on-light-dim); margin-top: 0.6em; }
.form-success{
  display:none;
  margin-top: var(--gap-sm);
  padding: 1em 1.2em;
  background: rgba(47,184,166,0.12);
  border: 1px solid var(--agua);
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
}
.form-success.show{ display:block; }

.contact-info-card{
  background: var(--ink); color: var(--text-on-dark);
  border-radius: var(--radius-md); padding: var(--gap-md);
}
.contact-info-card .info-row{
  display:flex; gap: 0.9em; align-items:flex-start;
  padding: 1em 0; border-bottom: 1px solid var(--line);
}
.contact-info-card .info-row:last-child{ border-bottom:none; }
.contact-info-card .info-row .k{
  font-family: var(--f-mono); font-size:0.68rem; text-transform:uppercase; letter-spacing:0.06em;
  color: var(--agua); width: 80px; flex-shrink:0; padding-top:0.2em;
}
.contact-info-card .info-row .v{ font-size: 0.98rem; }
.contact-map{
  margin-top: var(--gap-md);
  border-radius: var(--radius-md);
  overflow:hidden;
  border: 1px solid var(--line);
  height: 220px;
}
.contact-map iframe{ width:100%; height:100%; border:0; filter: grayscale(0.25) contrast(1.05); }

/* =========================================================================
   Footer
   ========================================================================= */
.site-footer{
  position: relative;
  z-index: 1;
  background: rgba(var(--ink-rgb), 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  color: var(--text-on-dark-dim);
  padding: var(--gap-lg) 0 var(--gap-md);
  border-top: 1px solid var(--line);
}
.footer-grid{
  display:grid; grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr; gap: var(--gap-md);
  padding-bottom: var(--gap-md);
  border-bottom: 1px solid var(--line);
}
@media (max-width:800px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
.footer-grid h5{
  font-family: var(--f-mono); font-size:0.7rem; text-transform:uppercase;
  letter-spacing:0.06em; color: var(--text-on-dark); margin-bottom:0.9em;
}
.footer-grid ul{ display:flex; flex-direction:column; gap:0.6em; }
.footer-grid a:hover{ color: var(--text-on-dark); }
.footer-bottom{
  display:flex; justify-content:space-between; align-items:center;
  padding-top: var(--gap-sm); font-size:0.78rem; flex-wrap:wrap; gap:0.6em;
}

/* =========================================================================
   Utilidades
   ========================================================================= */
.reveal{ opacity:0; transform: translateY(18px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-visible{ opacity:1; transform:none; }

.page-banner{
  background: linear-gradient(100deg, rgba(var(--ink-rgb),0.68) 0%, rgba(var(--ink-rgb),0.32) 70%);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  color: var(--text-on-dark);
  padding: var(--gap-lg) 0 var(--gap-md);
  position:relative; overflow:hidden;
}
.page-banner .container{ position:relative; }
.page-banner h1{ font-size: clamp(2rem, 4vw, 2.9rem); margin-top:0.4em; }