/*
  PI&CF — hoja de estilos principal
  Sistema de diseño construido sobre la paleta de marca existente:
  rojo #C81010, azul marino #002633, azul #005881, aqua #00B5A6.
  Sin dependencias externas de frameworks de íconos ni de carrusel.
*/

/* ---------- Tokens ---------- */
:root{
  --navy: #0B2B3A;
  --navy-2: #123244;
  --red: #C81010;
  --red-dark: #A50C0C;
  --blue: #045C86;
  --teal: #0EA99B;
  --whatsapp: #25D366;
  --whatsapp-dark: #1EBE5A;
  --paper: #F4F6F7;
  --white: #FFFFFF;
  --ink: #16242C;
  --ink-soft: #4C5B63;
  --line: #DAE1E4;
  --line-dark: rgba(255,255,255,.14);

  --font: 'Barlow', Arial, sans-serif;

  --fs-small: .875rem;
  --fs-body: 1.0625rem;
  --fs-lead: 1.25rem;
  --fs-h4: 1.375rem;
  --fs-h3: 1.75rem;
  --fs-h2: 2.25rem;
  --fs-h1: 2.75rem;
  --fs-display: 3.4rem;

  --gap: 1.5rem;
  --radius: 3px;
  --container: 1180px;
}

/* ---------- Reset ---------- */
*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}
body{
  margin: 0;
  font-family: var(--font);
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
ul{ margin: 0; padding: 0; list-style: none; }
h1,h2,h3,h4{ margin: 0 0 .6em; font-weight: 800; line-height: 1.15; letter-spacing: -.01em; }
p{ margin: 0 0 1.1em; }
button{ font-family: inherit; }

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

.container{ max-width: var(--container); margin: 0 auto; padding: 0 1.5rem; }
.prose{ max-width: 62ch; }
section{ padding: 4.5rem 0; }
@media (max-width: 720px){ section{ padding: 3rem 0; } }

.section-head{ max-width: 46rem; margin-bottom: 2.75rem; }
.section-head p{ color: var(--ink-soft); font-size: var(--fs-lead); margin-bottom: 0; }
.on-dark .section-head p{ color: rgba(255,255,255,.72); }

h2{ font-size: var(--fs-h2); }
h3{ font-size: var(--fs-h3); }
@media (max-width: 720px){ h2{ font-size: 1.8rem; } h3{ font-size: 1.4rem; } }

.on-dark{ color: var(--white); }
.bg-navy{ background: var(--navy); }
.bg-white{ background: var(--white); }
.bg-paper{ background: var(--paper); }

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex; align-items: center; gap: .55em;
  padding: .85rem 1.5rem;
  border: 1.5px solid transparent;
  border-radius: var(--radius);
  font-weight: 700; font-size: 1rem;
  cursor: pointer; white-space: nowrap;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}
.btn svg{ width: 1.1em; height: 1.1em; flex: none; }
.btn-primary{ background: var(--red); color: var(--white); }
.btn-primary:hover{ background: var(--red-dark); }
.btn-outline{ border-color: rgba(255,255,255,.55); color: var(--white); }
.btn-outline:hover{ border-color: var(--white); background: rgba(255,255,255,.08); }
.btn-outline-dark{ border-color: var(--navy); color: var(--navy); }
.btn-outline-dark:hover{ background: var(--navy); color: var(--white); }
.btn-whatsapp{ background: var(--whatsapp); color: var(--white); }
.btn-whatsapp:hover{ background: var(--whatsapp-dark); }
.btn-row{ display: flex; flex-wrap: wrap; gap: .9rem; }

/* ---------- Header ---------- */
.site-header{
  position: sticky; top: 0; z-index: 40;
  background: var(--navy);
  border-bottom: 1px solid var(--line-dark);
}
.site-header .container{
  display: flex; align-items: center; justify-content: space-between;
  height: 78px;
}
.logo{ display: flex; align-items: center; height: 100%; }
.logo img{ height: 34px; width: auto; }
.main-nav{ display: flex; align-items: center; gap: 2.1rem; }
.main-nav ul{ display: flex; gap: 1.9rem; }
.main-nav a{
  font-weight: 600; font-size: .98rem; color: rgba(255,255,255,.82);
  padding: .3rem 0; border-bottom: 2px solid transparent;
  transition: color .15s ease, border-color .15s ease;
}
.main-nav a:hover{ color: var(--white); }
.main-nav a[aria-current="page"]{ color: var(--white); border-color: var(--red); }
.nav-cta{ display: flex; align-items: center; gap: .9rem; }
.nav-cta .btn{ padding: .6rem 1.1rem; font-size: .9rem; }

.nav-toggle{
  display: none; background: none; border: 0; color: var(--white);
  width: 42px; height: 42px; cursor: pointer; align-items: center; justify-content: center;
}
.nav-toggle svg{ width: 24px; height: 24px; }

@media (max-width: 860px){
  .main-nav{
    position: absolute; top: 78px; left: 0; right: 0;
    background: var(--navy-2);
    flex-direction: column; align-items: stretch;
    gap: 0; border-top: 1px solid var(--line-dark);
    max-height: 0; overflow: hidden;
    transition: max-height .25s ease;
  }
  .main-nav.is-open{ max-height: 420px; }
  .main-nav ul{ flex-direction: column; gap: 0; padding: .5rem 1.5rem; }
  .main-nav ul li a{ display: block; padding: .85rem 0; border-bottom: 1px solid var(--line-dark); }
  .main-nav .nav-cta{ flex-direction: column; align-items: stretch; padding: 1rem 1.5rem 1.5rem; }
  .nav-toggle{ display: inline-flex; }
}

/* ---------- Hero (index) ---------- */
.hero{
  position: relative; overflow: hidden;
  min-height: 78vh; display: flex; align-items: flex-end;
  background: var(--navy);
}
.hero__slide{
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0; transition: opacity 1s ease;
}
.hero__slide.is-active{ opacity: 1; }
.hero__slide::after{
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(11,43,58,.94) 0%, rgba(11,43,58,.66) 55%, rgba(11,43,58,.35) 100%);
}
.hero__content{ position: relative; z-index: 2; padding: 4rem 0 3.5rem; color: var(--white); }
.hero__eyebrow{ font-size: var(--fs-small); font-weight: 700; color: var(--teal); margin-bottom: .9rem; }
.hero__content h1{ font-size: var(--fs-display); max-width: 20ch; margin-bottom: .5rem; }
.hero__content p{ font-size: var(--fs-lead); max-width: 46ch; color: rgba(255,255,255,.85); }
.hero__actions{ margin-top: 1.6rem; }
.hero__dots{ position: relative; z-index: 2; display: flex; gap: .5rem; padding-bottom: 2rem; }
.container.hero__dots-wrap{ display:flex; }
.hero__dot{
  width: 34px; height: 3px; background: rgba(255,255,255,.35); border: 0; cursor: pointer; padding: 0;
}
.hero__dot.is-active{ background: var(--red); }
@media (max-width: 720px){
  .hero{ min-height: 88vh; }
  .hero__content h1{ font-size: 2.1rem; }
}

/* Simple header used on interior pages */
.page-header{
  background: var(--navy); color: var(--white);
  padding: 3.6rem 0 3rem;
}
.page-header h1{ font-size: var(--fs-h1); max-width: 28ch; margin-bottom: .5rem; }
.page-header p{ color: rgba(255,255,255,.78); font-size: var(--fs-lead); max-width: 46ch; margin: 0; }

/* ---------- Pillars (home services grid) ---------- */
.pillars{ display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.pillars__card{
  background: var(--white); padding: 2.1rem 1.6rem; display: flex; flex-direction: column; gap: 1rem;
  transition: background-color .15s ease;
}
.pillars__card:hover{ background: #FBFBFA; }
.pillars__icon{ width: 42px; height: 42px; color: var(--red); }
.pillars__card h3{ font-size: 1.05rem; font-weight: 700; margin: 0; line-height: 1.3; }
.pillars__card span{ font-size: var(--fs-small); color: var(--ink-soft); }
@media (max-width: 900px){ .pillars{ grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px){ .pillars{ grid-template-columns: 1fr; } }

/* ---------- CTA band ---------- */
.cta-band{ background: var(--navy); color: var(--white); text-align: center; }
.cta-band h2{ margin-bottom: 1rem; }
.cta-band .prose{ margin: 0 auto 1.8rem; color: rgba(255,255,255,.78); font-size: var(--fs-lead); }
.cta-band .btn-row{ justify-content: center; }

/* ---------- Experience / checklist ---------- */
.experience{ display: grid; grid-template-columns: .85fr 1.15fr; gap: 3.5rem; align-items: center; }
.experience img{ border: 1px solid var(--line); }
.checklist{ display: grid; gap: .9rem; margin-bottom: 2rem; }
.checklist li{ display: flex; gap: .8rem; align-items: flex-start; }
.checklist svg{ width: 20px; height: 20px; flex: none; margin-top: .18em; color: var(--teal); }
.badges{ display: flex; flex-wrap: wrap; gap: .5rem; }
.badge{
  font-family: var(--font); font-weight: 700; font-size: .8rem; letter-spacing: .03em;
  border: 1px solid var(--blue); color: var(--blue); padding: .35rem .65rem; border-radius: var(--radius);
}
@media (max-width: 860px){ .experience{ grid-template-columns: 1fr; gap: 2rem; } }

/* ---------- Process timeline (about) ---------- */
.process{ list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; position: relative; }
.process::before{ content: ""; position: absolute; top: 22px; left: 0; right: 0; height: 1px; background: var(--line-dark); display: none; }
@media (min-width: 861px){ .process::before{ display: block; } }
.process__step{ position: relative; }
.process__num{
  width: 44px; height: 44px; border-radius: 50%; background: var(--red);
  color: var(--white); font-weight: 800; font-size: 1.15rem;
  display: flex; align-items: center; justify-content: center; margin-bottom: 1.1rem;
  position: relative; z-index: 1;
}
.process__step h3{ font-size: 1.05rem; margin-bottom: .5rem; }
.process__step p{ color: rgba(255,255,255,.72); font-size: .96rem; margin: 0; }
@media (max-width: 860px){ .process{ grid-template-columns: 1fr 1fr; gap: 2.2rem 1.5rem; } }
@media (max-width: 520px){ .process{ grid-template-columns: 1fr; } }

/* ---------- Values (about) — styled as spec fields ---------- */
.values{ border-top: 1px solid var(--line); }
.value{
  display: grid; grid-template-columns: 220px 1fr; gap: 2rem;
  padding: 1.9rem 0; border-bottom: 1px solid var(--line);
}
.value dt{ font-weight: 700; font-size: 1.15rem; color: var(--navy); }
.value dd{ margin: 0; color: var(--ink-soft); max-width: 60ch; }
@media (max-width: 700px){ .value{ grid-template-columns: 1fr; gap: .4rem; } }

/* ---------- Split rows (services page) ---------- */
.service-row{ display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 3.5rem; }
.service-row.reverse .service-row__media{ order: 2; }
.service-row__index{ font-weight: 800; font-size: 3.2rem; color: var(--red); line-height: 1; margin-bottom: .6rem; }
.service-row__body h2{ margin-bottom: 1rem; }
.service-row__media img{ border: 1px solid var(--line); }
@media (max-width: 860px){
  .service-row, .service-row.reverse .service-row__media{ grid-template-columns: 1fr; order: initial; }
}

/* ---------- Contact page ---------- */
.contact-grid{ display: grid; grid-template-columns: .95fr 1.3fr; gap: 2.5rem; align-items: stretch; }
.contact-card{ background: var(--white); border: 1px solid var(--line); padding: 2.4rem; }
.contact-card h2{ font-size: 1.05rem; text-transform: uppercase; letter-spacing: .04em; color: var(--ink-soft); margin-bottom: .4rem; }
.contact-card .contact-value{ font-size: 1.2rem; font-weight: 700; color: var(--navy); margin-bottom: 1.8rem; }
.contact-card .contact-value:last-child{ margin-bottom: 0; }
.contact-card a.contact-value:hover{ color: var(--red); }
.contact-map{ min-height: 320px; border: 1px solid var(--line); }
.contact-map iframe{ width: 100%; height: 100%; min-height: 320px; border: 0; }
@media (max-width: 860px){ .contact-grid{ grid-template-columns: 1fr; } }

/* ---------- Gallery ---------- */
.gallery-grid{ display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.1rem; }
.gallery-grid img{ width: 100%; height: 220px; object-fit: cover; border: 1px solid var(--line); }
@media (max-width: 900px){ .gallery-grid{ grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px){ .gallery-grid{ grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */
.site-footer{ background: var(--navy); color: rgba(255,255,255,.82); }
.site-footer .container{
  padding-top: 4rem; padding-bottom: 2.5rem;
  display: grid; grid-template-columns: .9fr 1fr 1fr; gap: 3rem;
}
.site-footer h2{ font-size: 1rem; color: var(--white); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 1rem; }
.site-footer img.footer-map{ border: 1px solid var(--line-dark); }
.site-footer p{ font-size: .96rem; }
.site-footer a{ transition: color .15s ease; }
.site-footer a:hover{ color: var(--white); }
.footer-bottom{
  border-top: 1px solid var(--line-dark);
  text-align: center; padding: 1.4rem 0; font-size: .82rem; color: rgba(255,255,255,.55);
}
.footer-bottom a{ color: rgba(255,255,255,.75); }
@media (max-width: 860px){ .site-footer .container{ grid-template-columns: 1fr; padding-top: 3rem; } }

/* ---------- Floating WhatsApp CTA ---------- */
.whatsapp-float{
  position: fixed; right: 1.4rem; bottom: 1.4rem; z-index: 50;
  display: flex; align-items: center; gap: .6rem;
  background: var(--whatsapp); color: var(--white);
  padding: .8rem 1.1rem; border-radius: 999px;
  box-shadow: 0 6px 18px rgba(0,0,0,.22);
  font-weight: 700; font-size: .92rem;
  transition: background-color .15s ease, transform .15s ease;
}
.whatsapp-float:hover{ background: var(--whatsapp-dark); transform: translateY(-1px); }
.whatsapp-float svg{ width: 22px; height: 22px; flex: none; }
.whatsapp-float span{ display: none; }
@media (min-width: 640px){ .whatsapp-float span{ display: inline; } }

/* ---------- Skip link ---------- */
.skip-link{
  position: absolute; left: -999px; top: 0; background: var(--white); color: var(--navy);
  padding: .8rem 1.2rem; z-index: 100; font-weight: 700;
}
.skip-link:focus{ left: 1rem; top: 1rem; }