/* ============================================
   REKI - Señalización Vial | Estilos Globales
   ============================================ */

:root {
  --azul:       #1B3A6B;
  --azul-claro: #2a5298;
  --gris:       #6B7280;
  --gris-claro: #F3F4F6;
  --gris-medio: #E5E7EB;
  --blanco:     #FFFFFF;
  --negro:      #111827;
  --acento:     #F59E0B;
  --sombra:     0 4px 24px rgba(27,58,107,0.10);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  color: var(--negro);
  background: var(--blanco);
  line-height: 1.6;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ---- TIPOGRAFÍA ---- */
h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; line-height: 1.15; }
h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 700; line-height: 1.2; }
h3 { font-size: 1.25rem; font-weight: 600; }
p  { color: var(--gris); }

.text-azul   { color: var(--azul); }
.text-acento { color: var(--acento); }
.text-center { text-align: center; }

/* ---- CONTENEDOR ---- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---- BOTONES ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 2rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .25s ease;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--acento);
  color: var(--negro);
}
.btn-primary:hover {
  background: #d97706;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245,158,11,.35);
}
.btn-outline {
  background: transparent;
  border-color: var(--blanco);
  color: var(--blanco);
}
.btn-outline:hover {
  background: var(--blanco);
  color: var(--azul);
}
.btn-azul {
  background: var(--azul);
  color: var(--blanco);
}
.btn-azul:hover {
  background: var(--azul-claro);
  transform: translateY(-2px);
  box-shadow: var(--sombra);
}

/* ---- BADGE ---- */
.badge {
  display: inline-block;
  background: rgba(245,158,11,.15);
  color: var(--acento);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .35rem .85rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gris-medio);
  transition: box-shadow .3s;
}
.navbar.scrolled { box-shadow: var(--sombra); }

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

.navbar__logo {
  display: flex;
  align-items: center;
  gap: .6rem;
}
.navbar__logo img { height: 36px; width: auto; }
.navbar__logo span {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--azul);
  letter-spacing: .04em;
}

.navbar__links {
  display: flex;
  gap: 2rem;
  align-items: center;
}
.navbar__links a {
  font-size: .95rem;
  font-weight: 500;
  color: var(--negro);
  position: relative;
  padding-bottom: 3px;
}
.navbar__links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--azul);
  transition: width .25s;
}
.navbar__links a:hover::after,
.navbar__links a.active::after { width: 100%; }
.navbar__links a.active { color: var(--azul); font-weight: 700; }

.navbar__cta { margin-left: 1.5rem; }

/* Hamburger */
.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
}
.navbar__toggle span {
  display: block;
  width: 26px; height: 2.5px;
  background: var(--azul);
  border-radius: 2px;
  transition: all .3s;
}
.navbar__toggle.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.navbar__toggle.open span:nth-child(2) { opacity: 0; }
.navbar__toggle.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--azul) 0%, #0f2447 100%);
  position: relative;
  overflow: hidden;
  padding-top: 72px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

/* Líneas decorativas tipo carretera */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 6px;
  background: repeating-linear-gradient(
    90deg,
    var(--acento) 0px,
    var(--acento) 80px,
    transparent 80px,
    transparent 130px
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  padding: 5rem 0;
}

.hero__text .badge { background: rgba(245,158,11,.2); color: var(--acento); }

.hero__text h1 {
  color: var(--blanco);
  margin-bottom: 1.25rem;
}
.hero__text h1 em {
  font-style: normal;
  color: var(--acento);
}

.hero__text p {
  color: rgba(255,255,255,.8);
  font-size: 1.15rem;
  margin-bottom: 2rem;
  max-width: 520px;
}

.hero__buttons { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero__stats {
  display: flex;
  gap: 2rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,.15);
}
.hero__stat strong {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--acento);
}
.hero__stat span {
  font-size: .85rem;
  color: rgba(255,255,255,.7);
}

.hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero__card {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 20px;
  padding: 2.5rem;
  backdrop-filter: blur(10px);
  width: 100%;
  max-width: 380px;
}
.hero__card-title {
  color: var(--blanco);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  opacity: .7;
}
.hero__card-items { display: flex; flex-direction: column; gap: .85rem; }
.hero__card-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: rgba(255,255,255,.07);
  border-radius: 10px;
  padding: .85rem 1rem;
  color: var(--blanco);
  font-weight: 500;
  font-size: .95rem;
}
.hero__card-item .icon {
  width: 40px; height: 40px;
  background: var(--acento);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* ============================================
   SECCIONES GENÉRICAS
   ============================================ */
section { padding: 5rem 0; }

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3.5rem;
}
.section-header p {
  font-size: 1.05rem;
  margin-top: .75rem;
}

/* ============================================
   DIFERENCIADORES / POR QUÉ REKI
   ============================================ */
.diferenciadores {
  background: var(--gris-claro);
}

.dif-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.dif-card {
  background: var(--blanco);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--sombra);
  transition: transform .25s, box-shadow .25s;
  position: relative;
  overflow: hidden;
}
.dif-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 100%;
  background: var(--azul);
  transition: width .25s;
}
.dif-card:hover { transform: translateY(-4px); box-shadow: 0 12px 36px rgba(27,58,107,.15); }
.dif-card:hover::before { width: 6px; }

.dif-card__icon {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, var(--azul), var(--azul-claro));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}
.dif-card h3 { margin-bottom: .5rem; color: var(--negro); }

/* ============================================
   SERVICIOS
   ============================================ */
.servicios-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.servicio-card {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--sombra);
  transition: transform .25s, box-shadow .25s;
  background: var(--blanco);
  border: 1px solid var(--gris-medio);
}
.servicio-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(27,58,107,.15);
}

.servicio-card__header {
  background: linear-gradient(135deg, var(--azul) 0%, #0f2447 100%);
  padding: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.servicio-card__header .icon {
  font-size: 2.2rem;
}
.servicio-card__header h3 {
  color: var(--blanco);
  font-size: 1.15rem;
}

.servicio-card__body { padding: 1.5rem; }
.servicio-card__body p { margin-bottom: 1.25rem; font-size: .95rem; }
.servicio-card__list { display: flex; flex-direction: column; gap: .5rem; }
.servicio-card__list li {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: .9rem;
  color: var(--gris);
}
.servicio-card__list li::before {
  content: '✓';
  color: var(--acento);
  font-weight: 700;
  flex-shrink: 0;
}

/* ============================================
   SECTORES
   ============================================ */
.sectores { background: var(--gris-claro); }

.sectores-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
}
.sector-item {
  background: var(--blanco);
  border-radius: 14px;
  padding: 1.75rem 1.25rem;
  text-align: center;
  box-shadow: var(--sombra);
  transition: transform .2s;
  border: 2px solid transparent;
}
.sector-item:hover {
  transform: translateY(-4px);
  border-color: var(--azul);
}
.sector-item .icon { font-size: 2.4rem; margin-bottom: .75rem; }
.sector-item h4 { font-size: .95rem; color: var(--negro); font-weight: 600; }

/* ============================================
   PROCESO / CÓMO TRABAJAMOS
   ============================================ */
.proceso-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  position: relative;
}

.paso {
  text-align: center;
  padding: 2rem 1.5rem;
  position: relative;
}
.paso__num {
  width: 56px; height: 56px;
  background: var(--azul);
  color: var(--blanco);
  font-size: 1.4rem;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
}
.paso h3 { margin-bottom: .5rem; }

/* ============================================
   CTA BANNER
   ============================================ */
.cta-banner {
  background: linear-gradient(135deg, var(--azul) 0%, #0f2447 100%);
  color: var(--blanco);
  text-align: center;
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 5px;
  background: repeating-linear-gradient(90deg, var(--acento) 0px, var(--acento) 60px, transparent 60px, transparent 100px);
}
.cta-banner h2 { color: var(--blanco); margin-bottom: 1rem; }
.cta-banner p { color: rgba(255,255,255,.8); font-size: 1.1rem; margin-bottom: 2rem; }
.cta-banner__buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ============================================
   GALERÍA / PROYECTOS
   ============================================ */
.galeria-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.galeria-item {
  border-radius: 14px;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--gris-medio);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: var(--sombra);
}
.galeria-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s;
}
.galeria-item:hover img { transform: scale(1.05); }
.galeria-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .75rem;
  color: var(--gris);
  font-size: .9rem;
  height: 100%;
}
.galeria-placeholder .icon { font-size: 2.5rem; opacity: .4; }

/* ============================================
   CONTACTO
   ============================================ */
.contacto { background: var(--gris-claro); }

.contacto-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 3rem;
  align-items: start;
}

.contacto-info h2 { margin-bottom: 1rem; }
.contacto-info p { margin-bottom: 2rem; }

.contacto-datos { display: flex; flex-direction: column; gap: 1.25rem; }
.contacto-dato {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--blanco);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  box-shadow: var(--sombra);
}
.contacto-dato .icon {
  width: 44px; height: 44px;
  background: var(--azul);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.contacto-dato span { font-size: .85rem; color: var(--gris); display: block; }
.contacto-dato strong { color: var(--negro); font-weight: 600; }

/* Formulario */
.form-card {
  background: var(--blanco);
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: var(--sombra);
}
.form-card h3 { margin-bottom: 1.5rem; color: var(--azul); }

.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  font-size: .88rem;
  font-weight: 600;
  color: var(--negro);
  margin-bottom: .4rem;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .75rem 1rem;
  border: 1.5px solid var(--gris-medio);
  border-radius: 8px;
  font-size: .95rem;
  font-family: inherit;
  color: var(--negro);
  background: var(--blanco);
  transition: border-color .2s, box-shadow .2s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--azul);
  box-shadow: 0 0 0 3px rgba(27,58,107,.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.form-submit {
  width: 100%;
  padding: 1rem;
  font-size: 1rem;
}

.form-success {
  display: none;
  text-align: center;
  padding: 2rem;
  color: #059669;
}
.form-success .icon { font-size: 3rem; margin-bottom: 1rem; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--negro);
  color: rgba(255,255,255,.7);
  padding: 3.5rem 0 1.5rem;
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}
.footer__brand .logo {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--blanco);
  letter-spacing: .04em;
  margin-bottom: .75rem;
}
.footer__brand p { font-size: .9rem; line-height: 1.7; }

.footer h4 {
  color: var(--blanco);
  font-size: .9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 1rem;
}
.footer ul { display: flex; flex-direction: column; gap: .55rem; }
.footer ul a {
  font-size: .88rem;
  color: rgba(255,255,255,.6);
  transition: color .2s;
}
.footer ul a:hover { color: var(--acento); }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .82rem;
}

/* ============================================
   WHATSAPP FLOTANTE
   ============================================ */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  background: #25D366;
  color: var(--blanco);
  width: 58px; height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,.5);
  font-size: 1.6rem;
  transition: transform .2s, box-shadow .2s;
  text-decoration: none;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37,211,102,.65);
}

/* ============================================
   PÁGINAS INTERIORES - HERO PEQUEÑO
   ============================================ */
.page-hero {
  background: linear-gradient(135deg, var(--azul) 0%, #0f2447 100%);
  padding: 7rem 0 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 5px;
  background: repeating-linear-gradient(90deg, var(--acento) 0px, var(--acento) 60px, transparent 60px, transparent 100px);
}
.page-hero h1 { color: var(--blanco); margin-bottom: .75rem; }
.page-hero p { color: rgba(255,255,255,.75); font-size: 1.1rem; }
.breadcrumb {
  display: flex;
  justify-content: center;
  gap: .5rem;
  font-size: .85rem;
  color: rgba(255,255,255,.5);
  margin-bottom: 1rem;
}
.breadcrumb a { color: var(--acento); }
.breadcrumb span { color: rgba(255,255,255,.4); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
  .hero__content { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero__visual { display: none; }
  .contacto-grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .navbar__links {
    display: none;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: var(--blanco);
    flex-direction: column;
    gap: 0;
    border-bottom: 1px solid var(--gris-medio);
    box-shadow: var(--sombra);
  }
  .navbar__links.open { display: flex; }
  .navbar__links a {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--gris-medio);
    width: 100%;
  }
  .navbar__links a::after { display: none; }
  .navbar__cta { display: none; }
  .navbar__toggle { display: flex; }

  .hero__stats { flex-wrap: wrap; gap: 1.5rem; }
  .form-row { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: .5rem; text-align: center; }
}

@media (max-width: 480px) {
  section { padding: 3.5rem 0; }
  .hero { padding-top: 72px; }
  .hero__content { padding: 3rem 0; }
  .btn { padding: .75rem 1.5rem; }
}