:root {
  --azul-700: #14456B;
  --azul-500: #1F6FA8;
  --cafe-600: #6B4A2F;
  --ambar-300: #E8D08A;

  --negro:    #16181A;
  --gris-700: #4A4E52;
  --gris-500: #8A8F93;
  --gris-300: #DCD8D0;
  --gris-100: #EFEDE8;
  --blanco:   #FBFAF8;

  --ok:     #2F6B4A;
  --aviso:  #B8862B;
  --error:  #A83B2A;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--gris-100);
  color: var(--negro);
  font-family: 'IBM Plex Sans', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}
h1, h2, h3 { font-family: 'Space Grotesk', sans-serif; letter-spacing: -.01em; color: var(--negro); }
a { color: inherit; text-decoration: none; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 32px; }
.mono { font-family: 'IBM Plex Mono', monospace; }

.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--gris-500);
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 18px;
}
.eyebrow .dash { width: 24px; height: 1px; background: var(--gris-500); display: inline-block; }

/* LOGO */
.logo-lockup { display: flex; align-items: center; gap: 14px; }
.logo-block {
  position: relative; width: 40px; height: 40px;
  background: var(--azul-700); border-radius: 6px;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.logo-block .p-letter {
  font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 26px;
  color: var(--blanco); letter-spacing: -.03em;
}
.logo-block .dot {
  position: absolute; right: -3px; bottom: -3px; width: 11px; height: 11px;
  border-radius: 50%; background: var(--ambar-300); border: 2px solid var(--gris-100);
}
header .dot { border-color: var(--blanco); }
.logo-word { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 22px; letter-spacing: -.02em; }
.logo-word .plan { color: var(--azul-700); }
.logo-word .out { color: var(--cafe-600); }

/* NAV */
header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(251,250,248,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gris-300);
}
nav { display: flex; align-items: center; justify-content: space-between; padding: 16px 32px; max-width: 1160px; margin: 0 auto; }
.navlinks { display: flex; gap: 8px; align-items: center; }
.navlinks > a, .navdrop > button {
  font-family: 'IBM Plex Sans', sans-serif; font-size: 14px; font-weight: 500; color: var(--azul-700);
  padding: 8px 12px; border-radius: 0; background: none; border: none; cursor: pointer; display: flex; align-items: center; gap: 4px;
}
.navlinks > a:hover, .navdrop > button:hover { background: var(--gris-100); }
.navdrop { position: relative; }
.navdrop-menu {
  display: none; position: absolute; top: 100%; left: 0; margin-top: 4px;
  background: var(--blanco); border: 1px solid var(--gris-300); min-width: 200px;
  box-shadow: 0 12px 28px rgba(20,69,107,.12); z-index: 50;
}
.navdrop.open .navdrop-menu { display: block; }
.navdrop-menu a {
  display: flex; align-items: center; gap: 10px; padding: 12px 16px; font-size: 13.5px; color: var(--negro);
  border-bottom: 1px solid var(--gris-300);
}
.navdrop-menu a:last-child { border-bottom: none; }
.navdrop-menu a:hover { background: var(--gris-100); color: var(--azul-500); }
.navdrop-menu .sys-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--azul-500); flex-shrink: 0; }
.navcta {
  font-family: 'IBM Plex Mono', monospace; font-size: 12.5px;
  background: var(--azul-700); color: var(--blanco); padding: 10px 18px;
  letter-spacing: .04em;
}
.navcta:hover { background: var(--azul-500); }
.burger { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; }
.burger span { width: 22px; height: 2px; background: var(--azul-700); display: block; }

/* HERO */
.hero { position: relative; padding: 168px 0 100px; background: var(--azul-700); color: var(--blanco); overflow: hidden; }
.grid-bg {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 60% 30%, black 20%, transparent 80%);
}
.hero-inner { position: relative; z-index: 2; }
.hero .eyebrow { color: #A9C2D6; }
.hero .eyebrow .dash { background: #A9C2D6; }
.hero h1 { font-size: clamp(30px, 5vw, 54px); font-weight: 700; max-width: 800px; line-height: 1.15; color: var(--blanco); }
.hero h1 em { font-style: normal; color: var(--ambar-300); }
.hero p.lead { max-width: 560px; margin-top: 24px; font-size: 17px; color: #C7D6E3; }
.hero-tags { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 40px; }
.htag { border: 1px solid rgba(255,255,255,.22); padding: 10px 16px; font-family: 'IBM Plex Mono', monospace; font-size: 12px; letter-spacing: .04em; display: flex; align-items: center; gap: 8px; }
.htag .dt { width: 6px; height: 6px; border-radius: 50%; }
.htag.t01 .dt { background: var(--azul-500); }
.htag.t02 .dt { background: var(--ambar-300); }
.hero-ctas { display: flex; gap: 14px; margin-top: 40px; flex-wrap: wrap; }
.btn { padding: 12px 22px; font-size: 14.5px; font-weight: 500; border-radius: 0; display: inline-flex; align-items: center; gap: 8px; cursor: pointer; border: 1px solid transparent; }
.btn-primary { background: var(--ambar-300); color: var(--negro); font-weight: 600; }
.btn-primary:hover { background: #E0C271; }
.btn-ghost { border-color: rgba(255,255,255,.35); color: var(--blanco); }
.btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,.08); }
.btn-dark { background: var(--azul-700); color: var(--blanco); }
.btn-dark:hover { background: var(--azul-500); }

/* SECTION GENERIC */
section { padding: 100px 0; }
.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(24px, 3.2vw, 36px); font-weight: 700; }

/* BREADCRUMB (páginas de división) */
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: #A9C2D6; margin-bottom: 20px; }
.breadcrumb a:hover { color: var(--ambar-300); }

/* NOSOTROS */
#nosotros { background: var(--gris-100); }
.nosotros-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: start; }
.nosotros-text p { color: var(--gris-700); font-size: 16px; margin-bottom: 16px; max-width: 480px; }
.nosotros-text p:first-of-type { color: var(--negro); font-size: 18px; font-weight: 500; }
.pillars { display: flex; flex-direction: column; }
.pillar { border-top: 1px solid var(--gris-300); padding: 20px 0; display: grid; grid-template-columns: 40px 1fr; gap: 16px; }
.pillar:last-child { border-bottom: 1px solid var(--gris-300); }
.pillar .num { font-family: 'IBM Plex Mono', monospace; font-size: 13px; color: var(--gris-500); padding-top: 2px; }
.pillar h3 { font-size: 16px; font-weight: 600; margin-bottom: 4px; color: var(--azul-700); }
.pillar p { font-size: 14px; color: var(--gris-700); }

/* SERVICIOS (tarjetas de división) */
#servicios { background: var(--blanco); border-top: 1px solid var(--gris-300); border-bottom: 1px solid var(--gris-300); }
.div-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.div-card { background: var(--gris-100); border: 1px solid var(--gris-300); padding: 36px 32px; position: relative; }
.div-card.t01 { border-left: 3px solid var(--azul-500); }
.div-card.t02 { border-left: 3px solid var(--cafe-600); }
.div-card .tag { font-family: 'IBM Plex Mono', monospace; font-size: 11px; letter-spacing: .1em; padding: 4px 10px; display: inline-block; margin-bottom: 20px; text-transform: uppercase; }
.div-card.t01 .tag { background: #DCE9F2; color: var(--azul-700); }
.div-card.t02 .tag { background: #EAE1D6; color: var(--cafe-600); }
.div-card h3 { font-size: 21px; font-weight: 700; margin-bottom: 12px; line-height: 1.3; }
.div-card ul { list-style: none; margin-top: 20px; display: flex; flex-direction: column; gap: 11px; }
.div-card li { font-size: 14px; color: var(--gris-700); padding-left: 18px; position: relative; }
.div-card li::before { content: ""; position: absolute; left: 0; top: 9px; width: 8px; height: 1px; background: var(--gris-500); }
.div-card .cta-link { display: inline-block; margin-top: 24px; font-size: 13.5px; font-weight: 600; color: var(--azul-500); }
.div-card .cta-link:hover { color: var(--azul-700); }

/* IAPC */
#metodologia { background: var(--gris-100); }
.iapc-intro { max-width: 680px; color: var(--gris-700); font-size: 15.5px; margin-bottom: 48px; }
.iapc-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.iapc-step { background: var(--blanco); border: 1px solid var(--gris-300); border-top: 3px solid var(--azul-700); padding: 24px 20px; }
.iapc-marker { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 26px; color: var(--azul-700); margin-bottom: 14px; }
.iapc-step h3 { font-size: 15.5px; font-weight: 600; margin-bottom: 12px; }
.divline { font-size: 12.5px; color: var(--gris-700); padding: 6px 0; border-top: 1px solid var(--gris-300); }
.divline:first-of-type { border-top: none; }
.divline.ti::before { content: "TI · "; font-family: 'IBM Plex Mono', monospace; color: var(--azul-500); font-size: 10px; }
.divline.infra::before { content: "INFRA · "; font-family: 'IBM Plex Mono', monospace; color: var(--cafe-600); font-size: 10px; }

/* Tabla IAPC (páginas de división) */
.iapc-table { width: 100%; border-collapse: collapse; margin-top: 20px; }
.iapc-table th { background: var(--azul-700); color: var(--blanco); font-family: 'IBM Plex Mono', monospace; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; padding: 12px 16px; text-align: left; }
.iapc-table td { padding: 14px 16px; font-size: 14px; color: var(--gris-700); border-bottom: 1px solid var(--gris-300); }
.iapc-table tr:nth-child(even) td { background: var(--gris-100); }
.iapc-table td:first-child { font-weight: 600; color: var(--negro); }

/* GALERÍA de proyectos (placeholder) */
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.gallery-item {
  aspect-ratio: 4/3; background: var(--blanco); border: 1px dashed var(--gris-300);
  display: flex; align-items: center; justify-content: center; text-align: center; padding: 20px;
  font-size: 12.5px; color: var(--gris-500); font-family: 'IBM Plex Mono', monospace;
}

/* CONTACTO */
#contacto { background: var(--azul-700); color: var(--blanco); }
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 60px; }
#contacto .eyebrow { color: #A9C2D6; }
#contacto .eyebrow .dash { background: #A9C2D6; }
#contacto .section-head h2 { color: var(--blanco); }
.contact-info p { color: #C7D6E3; font-size: 15px; margin-bottom: 26px; max-width: 400px; }
.info-line { display: flex; flex-direction: column; gap: 4px; padding: 16px 0; border-top: 1px solid rgba(255,255,255,.16); }
.info-line:last-child { border-bottom: 1px solid rgba(255,255,255,.16); }
.info-line .k { font-family: 'IBM Plex Mono', monospace; font-size: 11px; letter-spacing: .1em; color: #8FA3B8; text-transform: uppercase; }
.info-line .v { font-size: 15.5px; }
.info-line a.v:hover { color: var(--ambar-300); }

form { display: flex; flex-direction: column; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-family: 'IBM Plex Mono', monospace; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: #A9C2D6; }
.field input, .field select, .field textarea {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.24); color: var(--blanco);
  padding: 12px 14px; font-size: 14px; font-family: 'IBM Plex Sans', sans-serif; border-radius: 0;
}
.field select option { background: var(--azul-700); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--ambar-300); background: rgba(255,255,255,.1); }
.field textarea { resize: vertical; min-height: 96px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
form .btn-primary { align-self: flex-start; margin-top: 4px; border: none; font-family: 'IBM Plex Mono', monospace; }
.form-note { font-size: 12px; color: #8FA3B8; margin-top: 2px; }

footer { background: var(--negro); border-top: 1px solid rgba(255,255,255,.1); padding: 32px 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer-inner .mono { color: #8A8F93; font-size: 12px; }
.footer-divs { display: flex; gap: 20px; }
.footer-divs span { font-family: 'IBM Plex Mono', monospace; font-size: 11px; color: #8A8F93; }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

@media (max-width: 900px) {
  .navlinks { display: none; }
  .burger { display: flex; }
  .nosotros-grid, .div-grid, .contact-grid, .iapc-steps, .gallery { grid-template-columns: 1fr; }
  .row2 { grid-template-columns: 1fr; }
  section { padding: 64px 0; }
  .hero { padding: 130px 0 70px; }
}