/* =====================================================================
 * Soluciones ACV2 — Web corporativa
 * Paleta inspirada en cordillera de Los Andes:
 *   azul profundo (cielo nocturno andino) + cobre/dorado (minería)
 * ===================================================================== */

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

:root {
  /* Paleta principal */
  --azul-andino:        #1A2C5B;     /* azul profundo principal */
  --azul-noche:         #0E1A3D;     /* fondo hero/footer */
  --azul-cordillera:    #2E4380;     /* azul medio */
  --cobre:              #C8753D;     /* acento cálido */
  --cobre-claro:        #E0935C;     /* hover/highlights */
  --dorado-andino:      #D4A24C;     /* highlights tipográficos */

  /* Neutros */
  --blanco:             #FFFFFF;
  --gris-papel:         #F8F7F4;     /* casi blanco con tinte cálido */
  --gris-niebla:        #E8E6E0;
  --gris-piedra:        #6B7280;
  --texto:              #1A1F2E;
  --texto-suave:        #4A5260;

  /* Tipografía */
  --font:               'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--texto);
  background: var(--blanco);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }

img, svg { display: block; max-width: 100%; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* =====================================================================
 * HEADER
 * ===================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gris-niebla);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-weight: 800;
}

.logo-mark {
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--azul-andino);
}

.logo-2 {
  color: var(--cobre);
}

.logo-text {
  font-size: 14px;
  font-weight: 500;
  color: var(--gris-piedra);
  letter-spacing: 0.02em;
}

.nav-desktop {
  display: flex;
  gap: 36px;
}

.nav-desktop a {
  font-size: 15px;
  font-weight: 500;
  color: var(--texto-suave);
  transition: color 0.2s;
  position: relative;
}

.nav-desktop a:hover {
  color: var(--azul-andino);
}

.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--cobre);
  transition: width 0.2s;
}

.nav-desktop a:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--azul-andino);
  border-radius: 1px;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  background: var(--blanco);
  border-top: 1px solid var(--gris-niebla);
  padding: 16px 24px 24px;
}

.nav-mobile a {
  padding: 14px 0;
  border-bottom: 1px solid var(--gris-niebla);
  font-size: 16px;
  font-weight: 500;
  color: var(--texto);
}

.nav-mobile.open { display: flex; }

/* =====================================================================
 * HERO
 * ===================================================================== */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--azul-noche) 0%, var(--azul-andino) 50%, var(--azul-cordillera) 100%);
  color: var(--blanco);
  padding: 110px 0 140px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image:
    radial-gradient(circle at 15% 20%, rgba(212, 162, 76, 0.08) 0%, transparent 30%),
    radial-gradient(circle at 85% 70%, rgba(200, 117, 61, 0.06) 0%, transparent 35%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
}

.hero-eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dorado-andino);
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin-bottom: 24px;
}

.hero-title .highlight {
  color: var(--dorado-andino);
  position: relative;
  display: inline-block;
}

.hero-title .highlight::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 4px;
  height: 8px;
  background: rgba(212, 162, 76, 0.18);
  z-index: -1;
  border-radius: 2px;
}

.hero-subtitle {
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 40px;
  max-width: 640px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 14px 30px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--cobre);
  color: var(--blanco);
  border-color: var(--cobre);
}

.btn-primary:hover {
  background: var(--cobre-claro);
  border-color: var(--cobre-claro);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(200, 117, 61, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--blanco);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.5);
}

.hero-decoration {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 0;
}

.hero-decoration svg {
  width: 100%;
  height: auto;
  display: block;
}

/* =====================================================================
 * SECCIONES
 * ===================================================================== */
.section {
  padding: 100px 0;
}

.section-header {
  max-width: 720px;
  margin: 0 auto 64px;
  text-align: center;
}

.section-eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cobre);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--texto);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 17px;
  line-height: 1.65;
  color: var(--texto-suave);
}

/* SERVICIOS */
.section-servicios {
  background: var(--gris-papel);
}

.grid-servicios {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
}

.card-servicio {
  background: var(--blanco);
  border: 1px solid var(--gris-niebla);
  border-radius: 12px;
  padding: 36px 32px;
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
}

.card-servicio::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cobre), var(--dorado-andino));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}

.card-servicio:hover {
  border-color: var(--cobre);
  box-shadow: 0 14px 40px rgba(26, 44, 91, 0.08);
  transform: translateY(-3px);
}

.card-servicio:hover::before { transform: scaleX(1); }

.card-icon {
  width: 64px;
  height: 64px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--azul-andino), var(--azul-cordillera));
  color: var(--dorado-andino);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}

.card-icon svg {
  width: 36px;
  height: 36px;
}

.card-servicio h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--azul-andino);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.card-servicio p {
  color: var(--texto-suave);
  font-size: 15px;
  line-height: 1.65;
  margin-bottom: 20px;
}

.card-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.card-tags li {
  font-size: 12px;
  font-weight: 600;
  color: var(--azul-andino);
  background: rgba(26, 44, 91, 0.06);
  padding: 5px 12px;
  border-radius: 14px;
}

/* NOSOTROS */
.section-nosotros { background: var(--blanco); }

.grid-nosotros {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 80px;
  align-items: center;
}

.nosotros-text .section-title {
  text-align: left;
}

.nosotros-text .lead {
  font-size: 18px;
  color: var(--texto);
  font-weight: 500;
  margin: 24px 0 18px;
  line-height: 1.55;
}

.nosotros-text p:last-child {
  color: var(--texto-suave);
  font-size: 16px;
  line-height: 1.7;
}

.nosotros-stats {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.stat {
  background: var(--gris-papel);
  border-left: 4px solid var(--cobre);
  padding: 24px 28px;
  border-radius: 8px;
}

.stat-number {
  font-size: 42px;
  font-weight: 800;
  color: var(--azul-andino);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 8px;
}

.stat p {
  color: var(--texto-suave);
  font-size: 14px;
  line-height: 1.5;
}

/* CONTACTO */
.section-contacto {
  background: var(--gris-papel);
  padding-bottom: 120px;
}

.contacto-card {
  background: linear-gradient(135deg, var(--azul-andino) 0%, var(--azul-noche) 100%);
  border-radius: 16px;
  padding: 64px 56px;
  color: var(--blanco);
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: center;
  box-shadow: 0 30px 60px rgba(26, 44, 91, 0.2);
  position: relative;
  overflow: hidden;
}

.contacto-card::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(212, 162, 76, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.contacto-text { position: relative; z-index: 1; }

.contacto-text .section-eyebrow {
  color: var(--dorado-andino);
}

.contacto-text .section-title {
  color: var(--blanco);
  font-size: 32px;
}

.contacto-text p {
  color: rgba(255, 255, 255, 0.78);
  margin-top: 12px;
  font-size: 16px;
}

.contacto-mail {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 22px 26px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 500;
  color: var(--blanco);
  transition: all 0.2s;
  position: relative;
  z-index: 1;
}

.contacto-mail:hover {
  background: var(--cobre);
  border-color: var(--cobre);
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(200, 117, 61, 0.35);
}

.contacto-mail svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

/* FOOTER */
.site-footer {
  background: var(--azul-noche);
  color: rgba(255, 255, 255, 0.7);
  padding: 48px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--blanco);
  margin-bottom: 4px;
}

.footer-tag {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

.footer-meta {
  text-align: right;
  font-size: 13px;
  line-height: 1.7;
}

.footer-meta a {
  color: var(--dorado-andino);
}

.footer-meta a:hover { text-decoration: underline; }

/* =====================================================================
 * RESPONSIVE
 * ===================================================================== */
@media (max-width: 860px) {
  .nav-desktop { display: none; }
  .nav-toggle { display: flex; }

  .hero { padding: 80px 0 100px; }

  .section { padding: 70px 0; }

  .grid-nosotros {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .contacto-card {
    grid-template-columns: 1fr;
    padding: 48px 32px;
    gap: 28px;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

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

@media (max-width: 480px) {
  .container { padding: 0 18px; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
  .card-servicio { padding: 28px 22px; }
  .contacto-card { padding: 36px 24px; }
}