/* ============================================================
   AHG Ingeniero S.A.S. | Portal corporativo (web-ahg)
   Dirección "Autoridad": marfil, azul marino y dorado del logo.
   Tipografía: Cormorant Garamond (títulos) + Manrope (texto).
   Sin framework. Tras editar, subir ?v= en index.html.
   ============================================================ */

* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --marfil:      #F6F3EC;
  --blanco:      #FFFFFF;
  --marino:      #0E1A2F;
  --marino-2:    #16274A;
  --marino-3:    #111F38;
  --dorado:      #B8923F;
  --dorado-hi:   #D9B763;
  --dorado-dk:   #8E6E2A;
  --tinta:       #17233A;
  --tinta-2:     #2C374D;
  --gris:        #5B6478;
  --gris-2:      #8A94A8;
  --linea:       #E3DCCB;
  --linea-2:     #D9D2C2;
  --linea-dk:    rgba(184,146,63,.35);

  --maxw: 1160px;
  --pad: clamp(20px, 5vw, 40px);
  --nav-h: 84px;
  --ease: cubic-bezier(.16, 1, .3, 1);

  --serif: 'Cormorant Garamond', 'Times New Roman', Georgia, serif;
  --sans:  'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: var(--nav-h); }
body {
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  color: var(--tinta);
  background: var(--marfil);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }
::selection { background: var(--dorado); color: var(--marino); }

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--pad); }

.serif { font-family: var(--serif); font-weight: 600; line-height: 1.05; letter-spacing: -.01em; }
.eyebrow {
  font-size: 12px; font-weight: 700; letter-spacing: .24em; text-transform: uppercase; color: var(--dorado);
}

/* Accesibilidad */
.skip-link { position: absolute; left: -999px; top: 0; z-index: 200; background: var(--dorado); color: var(--marino); padding: 10px 16px; font-weight: 700; }
.skip-link:focus { left: 0; }
:focus-visible { outline: 2px solid var(--dorado-hi); outline-offset: 3px; }

/* ============================================================
   BOTONES
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 26px; border-radius: 4px;
  font-weight: 700; font-size: 15px; letter-spacing: .02em; line-height: 1;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn--gold { background: var(--dorado); color: var(--marino); }
.btn--gold:hover { background: var(--dorado-hi); }
.btn--line { border: 1px solid rgba(233,226,210,.55); color: var(--marfil); }
.btn--line:hover { border-color: var(--dorado-hi); color: var(--dorado-hi); }
.btn--navy { background: var(--marino); color: var(--marfil); }
.btn--navy:hover { background: var(--marino-2); color: #fff; }
.btn--sm { min-height: 42px; padding: 0 20px; font-size: 14px; }
.btn--lg { min-height: 54px; padding: 0 32px; font-size: 16px; }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: var(--marino);
  border-bottom: 1px solid var(--linea-dk);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: var(--nav-h); }
.nav__logo { height: 50px; width: auto; }
.nav__links { display: flex; align-items: center; gap: 28px; }
.nav__links a:not(.btn) { font-size: 15px; font-weight: 600; color: #E9E2D2; transition: color .2s; }
.nav__links a:not(.btn):hover { color: var(--dorado-hi); }
.nav__toggle {
  display: none; align-items: center; gap: 10px;
  background: none; border: 1px solid rgba(233,226,210,.35); color: #E9E2D2;
  min-height: 42px; padding: 0 14px; border-radius: 4px; font: inherit; font-size: 14px; font-weight: 700; cursor: pointer;
}
.nav__toggle span.bars { display: inline-block; width: 18px; height: 2px; background: currentColor; position: relative; }
.nav__toggle span.bars::before, .nav__toggle span.bars::after { content: ""; position: absolute; left: 0; width: 18px; height: 2px; background: currentColor; }
.nav__toggle span.bars::before { top: -6px; }
.nav__toggle span.bars::after { top: 6px; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative; overflow: hidden; color: var(--marfil);
  background:
    radial-gradient(110% 85% at 88% 8%, rgba(46,104,214,.62) 0%, rgba(46,104,214,0) 62%),
    radial-gradient(70% 60% at 6% 100%, rgba(30,63,138,.5) 0%, rgba(30,63,138,0) 60%),
    linear-gradient(160deg, #152F63 0%, #0E1A2F 72%);
}
.hero__topo { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .14; pointer-events: none; }
.hero__mark {
  position: absolute; top: 50%; left: 50%; transform: translate(-14%, -50%);
  width: clamp(560px, 70vw, 1100px); height: auto; opacity: .13; pointer-events: none; user-select: none;
}
.hero__inner {
  position: relative; display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 40px;
  padding-block: clamp(64px, 9vw, 100px); align-items: center;
}
.hero__text { grid-column: span 7; display: flex; flex-direction: column; gap: 26px; }
.hero__title { font-size: clamp(42px, 5.4vw, 68px); color: var(--marfil); }
.hero__sub { font-size: clamp(17px, 1.5vw, 19px); color: #C9CFDD; max-width: 560px; }
.hero__cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 6px; }
.hero__media { grid-column: span 5; }
.hero__frame {
  position: relative; aspect-ratio: 4 / 5; overflow: hidden; border-radius: 4px;
  border: 1px solid rgba(184,146,63,.6);
  background: linear-gradient(160deg, var(--marino-2) 0%, #0B1526 100%);
}
.hero__frame img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero__frame::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(14,26,47,0) 55%, rgba(14,26,47,.85) 100%);
}
.hero__caption {
  position: absolute; left: 18px; right: 18px; bottom: 18px; z-index: 1;
  display: flex; flex-direction: column; gap: 3px;
}
.hero__caption b { font-size: 11px; letter-spacing: .2em; text-transform: uppercase; color: var(--dorado-hi); font-weight: 700; }
.hero__caption span { font-size: 13px; color: #C9CFDD; }

/* ============================================================
   CIFRAS
   ============================================================ */
.stats { background: var(--marfil); }
.stats__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 40px; padding-block: 64px; }
.stat { border-top: 1px solid var(--dorado); padding-top: 18px; }
.stat b { display: block; font-family: var(--serif); font-size: 52px; font-weight: 600; line-height: 1; color: var(--marino); }
.stat span { display: block; font-size: 14px; color: var(--gris); margin-top: 8px; }

/* ============================================================
   SECCIONES
   ============================================================ */
.section { padding-block: clamp(72px, 8vw, 96px); }
.section--white { background: var(--blanco); border-top: 1px solid var(--linea); border-bottom: 1px solid var(--linea); }
.section__title { font-size: clamp(34px, 3.8vw, 46px); color: var(--marino); }
.section__head { display: flex; flex-direction: column; gap: 14px; max-width: 720px; }
.split { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 40px; }
.split__a { grid-column: span 5; display: flex; flex-direction: column; gap: 18px; }
.split__b { grid-column: span 7; display: flex; flex-direction: column; gap: 22px; padding-top: 10px; }

/* Quiénes somos */
.about__lead { font-size: 18px; color: var(--tinta-2); }
.about__text { font-size: 17px; color: var(--gris); }
.pillars { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 32px; margin-top: 8px; }
.pillars li { border-top: 1px solid var(--dorado); padding-top: 10px; font-size: 15px; font-weight: 600; color: var(--marino); }
.about__photo { margin-top: 18px; border-radius: 4px; overflow: hidden; border: 1px solid var(--linea); aspect-ratio: 3 / 2; }
.about__photo img { width: 100%; height: 100%; object-fit: cover; }
.about__photo-cap { font-size: 13px; color: var(--gris-2); margin-top: 8px; }

/* Servicios */
.services { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px 48px; margin-top: 48px; }
.svc { border-top: 1px solid var(--linea-2); padding: 28px 0 8px; display: flex; flex-direction: column; gap: 12px; }
.svc svg { width: 30px; height: 30px; stroke: var(--dorado); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.svc h3 { font-family: var(--serif); font-size: 28px; font-weight: 600; color: var(--marino); line-height: 1.1; }
.svc p { font-size: 15px; color: var(--gris); }

/* Proyectos */
.projects__head { display: flex; justify-content: space-between; align-items: flex-end; gap: 40px; flex-wrap: wrap; }
.projects__note { font-size: 15px; color: var(--gris); max-width: 360px; }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; margin-top: 44px; }
.card {
  background: var(--blanco); border: 1px solid var(--linea); border-radius: 6px; overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(14,26,47,.12); border-color: var(--dorado); }
.card__media { height: 200px; background: var(--marino); position: relative; overflow: hidden; }
.card__media svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.card__body { padding: 22px 24px 26px; display: flex; flex-direction: column; gap: 8px; }
.card__tag { font-size: 11px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; color: var(--dorado); }
.card__title { font-family: var(--serif); font-size: 27px; font-weight: 600; color: var(--marino); line-height: 1.1; }
.card__desc { font-size: 15px; color: var(--gris); }
.card__go { margin-top: 8px; font-size: 14px; font-weight: 700; color: var(--marino); display: inline-flex; align-items: center; gap: 6px; }
.card__go svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; transition: transform .2s var(--ease); }
.card:hover .card__go svg { transform: translateX(4px); }
.card__go-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.card__badge {
  display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; color: #2E7D4F;
}
.card__badge::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: #2E9E5E; }

.extra {
  display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 28px; align-items: center;
  border: 1px solid var(--linea); border-radius: 6px; padding: 28px 32px; background: var(--marfil); margin-top: 28px;
}
.extra__text { grid-column: span 8; display: flex; flex-direction: column; gap: 6px; }
.extra__title { font-family: var(--serif); font-size: 30px; font-weight: 600; color: var(--marino); line-height: 1.1; }
.extra__desc { font-size: 15px; color: var(--gris); }
.extra__state { grid-column: span 4; display: flex; justify-content: flex-end; font-size: 14px; font-weight: 700; color: var(--marino); }

/* Plataforma */
.platform { background: var(--marino); color: var(--marfil); position: relative; overflow: hidden; }
.platform__inner { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 40px; align-items: center; }
.platform__text { grid-column: span 6; display: flex; flex-direction: column; gap: 22px; }
.platform__title { font-size: clamp(36px, 4vw, 50px); color: var(--marfil); }
.platform__lead { font-size: 18px; color: #C9CFDD; }
.platform__list { display: flex; flex-direction: column; gap: 10px; font-size: 16px; color: #E9E2D2; }
.platform__list li { display: flex; gap: 12px; align-items: flex-start; }
.platform__list li::before { content: ""; flex: none; width: 8px; height: 8px; border-radius: 50%; background: var(--dorado); margin-top: 9px; }
.platform__media { grid-column: span 6; }
.browser { border: 1px solid rgba(184,146,63,.5); border-radius: 6px; overflow: hidden; background: var(--marino-3); }
.browser__bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 14px; border-bottom: 1px solid rgba(184,146,63,.3); }
.browser__dots { display: flex; gap: 6px; }
.browser__dots span { width: 10px; height: 10px; border-radius: 50%; background: #2A3C5E; }
.browser__url { font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--dorado-hi); font-weight: 700; }
.browser__view { position: relative; aspect-ratio: 16 / 10; }
.browser__view img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.browser__view svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.browser__chip {
  position: absolute; right: 14px; top: 14px; background: var(--marfil); color: var(--marino);
  border-radius: 3px; padding: 10px 12px; display: flex; flex-direction: column; gap: 3px; min-width: 170px;
  box-shadow: 0 10px 24px rgba(0,0,0,.25);
}
.browser__chip b { font-size: 11px; font-weight: 700; }
.browser__chip span { font-size: 10px; color: var(--gris); }
.browser__chip i { font-style: normal; font-size: 10px; font-weight: 700; color: var(--dorado-dk); margin-top: 2px; }

/* Contacto */
.contact { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 40px; align-items: center; }
.contact__text { grid-column: span 7; display: flex; flex-direction: column; gap: 18px; }
.contact__title { font-size: clamp(36px, 4vw, 50px); color: var(--marino); }
.contact__lead { font-size: 18px; color: var(--gris); max-width: 520px; }
.contact__card {
  grid-column: span 5; display: flex; flex-direction: column; gap: 14px;
  background: var(--blanco); border: 1px solid var(--linea); border-radius: 6px; padding: 32px;
}
.contact__name { font-size: 12px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; color: var(--dorado); }
.contact__mail { font-size: clamp(18px, 1.8vw, 22px); font-weight: 700; color: var(--marino); word-break: break-all; }
.contact__mail:hover { color: var(--dorado-dk); }
.contact__place { font-size: 15px; color: var(--gris); }

/* Footer */
.footer { background: var(--marino); border-top: 1px solid var(--linea-dk); }
.footer__inner { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; padding-block: 32px; }
.footer__logo { height: 40px; width: auto; }
.footer__links { display: flex; gap: 24px; flex-wrap: wrap; }
.footer__links a { color: #AEB7C9; font-size: 14px; transition: color .2s; }
.footer__links a:hover { color: var(--dorado-hi); }
.footer__copy { font-size: 13px; color: var(--gris-2); }

/* ============================================================
   REVEAL (solo con JS; sin JS todo es visible)
   ============================================================ */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s var(--ease), transform .7s var(--ease); transition-delay: var(--d, 0ms); }
.js .reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .btn, .card, .card__go svg { transition: none; }
  html { scroll-behavior: auto; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .services { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px 40px; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; }
}
@media (max-width: 900px) {
  /* Una sola columna: con 12 columnas y gap de 40px la retícula desborda el móvil. */
  .hero__inner, .split, .platform__inner, .contact, .extra { grid-template-columns: 1fr; gap: 32px; }
  .hero__text, .hero__media, .split__a, .split__b, .platform__text, .platform__media,
  .contact__text, .contact__card, .extra__text, .extra__state { grid-column: auto; }
  .hero__media { max-width: 520px; }
  .hero__frame { aspect-ratio: 4 / 3; }
  .split__b { padding-top: 0; }
  .extra { gap: 16px; }
  .extra__state { justify-content: flex-start; }
}
@media (max-width: 820px) {
  :root { --nav-h: 72px; }
  .nav__logo { height: 42px; }
  .nav__toggle { display: inline-flex; }
  .nav__links {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--marino); border-bottom: 1px solid var(--linea-dk);
    padding: 8px var(--pad) 18px;
  }
  .nav__links.is-open { display: flex; }
  .nav__links a:not(.btn) { padding: 14px 0; border-bottom: 1px solid rgba(233,226,210,.12); }
  .nav__links .btn { margin-top: 14px; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .hero__mark { width: 150vw; transform: translate(-50%, -50%); opacity: .09; }
  .services, .cards, .stats__grid, .pillars { grid-template-columns: 1fr; }
  .stats__grid { gap: 28px; padding-block: 48px; }
  .stat b { font-size: 44px; }
  .hero__cta .btn { width: 100%; }
  .contact__card { padding: 24px; }
  .extra { padding: 22px; }
  .browser__chip { min-width: 0; right: 10px; top: 10px; padding: 8px 10px; }
}