/* ============================================================
   INC PROELEC — Design System Global
   Paleta: Dorado #edc736 | Carbón #1a1a1a | Humo #f5f5f5
   Tipografía: Barlow Condensed (títulos) + Source Serif 4 (cuerpo)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@400;600;700;800&family=Source+Serif+4:ital,wght@0,300;0,400;0,600;1,300;1,400&family=Barlow:wght@400;500;600&display=swap');

/* ── Variables ─────────────────────────────────────────── */
:root {
  --gold:        #edc736;
  --gold-light:  #f5d96a;
  --gold-dark:   #c8a91a;
  --carbon:      #1a1a1a;
  --carbon-80:   #2e2e2e;
  --carbon-60:   #444444;
  --slate:       #5a5a5a;
  --smoke:       #f5f5f5;
  --white:       #ffffff;
  --off-white:   #faf9f6;
  --border:      rgba(237,199,54,0.25);

  /* Tipografía */
  --font-display: 'Barlow Condensed', sans-serif;
  --font-body:    'Source Serif 4', Georgia, serif;
  --font-ui:      'Barlow', sans-serif;

  /* Espaciado */
  --section-pad: 80px 40px;
  --section-pad-sm: 50px 20px;

  /* Sombras */
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.08);
  --shadow-md:  0 6px 24px rgba(0,0,0,0.12);
  --shadow-lg:  0 16px 48px rgba(0,0,0,0.18);
  --shadow-gold: 0 4px 20px rgba(237,199,54,0.3);

  /* Transiciones */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --trans: 0.3s var(--ease);
}

/* ── Reset & Base ───────────────────────────────────────── */
*, *::before, *::after {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--carbon);
  background-color: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img {
  user-select: none;
  -webkit-user-drag: none;
  max-width: 100%;
  height: auto;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--trans);
}

ul { list-style: none; }

/* ── Utilidades tipográficas ────────────────────────────── */
.display-title {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.05;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.1;
}

.section-subtitle {
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-dark);
}

.body-text {
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
  line-height: 1.8;
  color: var(--carbon-60);
}

.body-text-italic {
  font-style: italic;
}

/* ── Decorador de línea dorada bajo títulos ─────────────── */
.gold-underline {
  position: relative;
  display: inline-block;
}
.gold-underline::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--gold);
}
.gold-underline--center::after {
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
}

/* ── Botones ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 14px 32px;
  border-radius: 2px;
  transition: all var(--trans);
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--gold);
  color: var(--carbon);
}
.btn-primary:hover {
  background: var(--gold-dark);
  box-shadow: var(--shadow-gold);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
}
.btn-outline:hover {
  background: var(--white);
  color: var(--carbon);
}

/* ── HEADER ─────────────────────────────────────────────── */
header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 80px;
  background: rgba(26, 26, 26, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(237,199,54,0.15);
  transition: background var(--trans);
}

header.scrolled {
  background: rgba(26, 26, 26, 0.99);
  box-shadow: 0 2px 20px rgba(0,0,0,0.4);
}

.logo img {
  height: 56px;
  display: block;
}

nav ul {
  display: flex;
  gap: 36px;
}

nav a {
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  position: relative;
  padding-bottom: 4px;
}

nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: width var(--trans);
}

nav a:hover,
nav a.active {
  color: var(--white);
}

nav a:hover::after,
nav a.active::after {
  width: 100%;
}

/* ── Hamburger mobile ───────────────────────────────────── */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--white);
  transition: all var(--trans);
}

@media (max-width: 768px) {
  header {
    padding: 0 20px;
    height: 70px;
  }
  .logo img { height: 46px; }

  .nav-toggle { display: flex; }

  nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(26,26,26,0.98);
    backdrop-filter: blur(12px);
    padding: 30px 24px;
    transform: translateY(-120%); /* Lo aleja lo suficiente para que no bloquee la pantalla */
    transition: transform var(--trans);
    border-bottom: 1px solid var(--border);
    z-index: 999; /* Asegura que se despliegue por encima del resto del contenido */
    pointer-events: none; /* Evita que bloquee los clics cuando está oculto */
    width: 100%; /* Línea extra 1: Fuerza a recalcular el ancho completo */
    box-sizing: border-box; /* Línea extra 2: Evita que el padding rompa la estructura */
    opacity: 0; /* Línea extra 1: Lo hace invisible por completo al cargar */
    visibility: hidden; /* Línea extra 2: Corta cualquier rastro que flote en el header */
  }
  
  nav.open {
    transform: translateY(0);
    pointer-events: auto; /* Activa los clics en los enlaces solo cuando el menú está abierto */
    opacity: 1; /* Línea extra 3: Lo muestra solo al pulsar las tres líneas */
    visibility: visible; /* Línea extra 4: Lo vuelve interactivo en el clic */
  }
  nav ul {
    flex-direction: column;
    gap: 20px;
  }
  nav a {
    font-size: 1rem;
    letter-spacing: 0.1em;
  }
}

/* ── FOOTER ─────────────────────────────────────────────── */
footer {
  background: var(--carbon);
  border-top: 3px solid var(--gold);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 50px 40px 30px;
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 40px;
  align-items: center;
}

.footer-brand img {
  height: 55px;
  margin-bottom: 12px;
}

.footer-brand p {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.05em;
}

.footer-copy {
  text-align: center;
}

.footer-copy .tagline {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: var(--gold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.footer-copy p {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.05em;
}

.footer-social {
  text-align: right;
}

.footer-social h4 {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 14px;
}

.footer-social ul {
  display: flex;
  gap: 16px;
  justify-content: flex-end;
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50%;
  color: rgba(255,255,255,0.6);
  font-size: 1rem;
  transition: all var(--trans);
}
.footer-social a:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--carbon);
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 16px 40px;
  text-align: center;
}
.footer-bottom p {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  color: rgba(255,255,255,0.25);
  letter-spacing: 0.05em;
}

@media (max-width: 768px) {
  .footer-inner {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 40px 20px 24px;
    gap: 28px;
  }
  .footer-social { text-align: center; }
  .footer-social ul { justify-content: center; }
  .footer-bottom { padding: 16px 20px; }
}

/* ── Scroll reveal ──────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── Page offset for fixed header ───────────────────────── */
.page-content {
  padding-top: 80px;
}
@media (max-width: 768px) {
  .page-content { padding-top: 70px; }
}

/* ── Breadcrumb / page hero interior ────────────────────── */
.page-hero {
  background: var(--carbon);
  padding: 70px 40px 60px;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 40px,
      rgba(237,199,54,0.03) 40px,
      rgba(237,199,54,0.03) 41px
    );
}
.page-hero-inner {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
}
.page-hero .section-subtitle {
  margin-bottom: 12px;
  display: block;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1;
}
.page-hero h1 span {
  color: var(--gold);
}
.page-hero p {
  font-family: var(--font-ui);
  color: rgba(255,255,255,0.6);
  font-size: 1rem;
  margin-top: 16px;
  max-width: 560px;
}
.page-hero .gold-bar {
  width: 60px;
  height: 3px;
  background: var(--gold);
  margin-top: 20px;
}

/* Ajuste de contenedores para evitar desbordes */
.contacto-inner,
.quienes-inner,
.about-preview-inner,
.services-preview-inner,
.vm-inner,
.cert-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px; /* Margen de seguridad para que el contenido no pegue en los bordes de la pantalla */
  box-sizing: border-box;
}

/* Optimización del Footer para pantallas medianas */
@media (max-width: 992px) {
  .footer-inner {
    grid-template-columns: 1fr; /* Pasa de 3 columnas a una sola fila centrada */
    text-align: center;
    gap: 30px;
  }
  .footer-social {
    text-align: center;
  }
  .footer-social ul {
    justify-content: center;
  }
}