/* ODInnova - estilos base */
:root {
  --azul: #1e93cb;
  --azul-oscuro: #0f6a99;
  --negro: #111111;
  --gris-texto: #444444;
  --gris-claro: #f5f7f9;
  --gris-borde: #e2e6ea;
  --blanco: #ffffff;
  --fuente-titulo: Georgia, 'Times New Roman', serif;
  --fuente-texto: 'Segoe UI', Arial, Helvetica, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--fuente-texto);
  color: var(--gris-texto);
  background: var(--blanco);
  line-height: 1.6;
}

a { color: var(--azul-oscuro); text-decoration: none; }
a:hover { text-decoration: underline; }

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

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
header.site-header {
  border-bottom: 1px solid var(--gris-borde);
  background: var(--blanco);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  max-width: 1140px;
  margin: 0 auto;
  gap: 1.5rem;
}

.logo-link { display: flex; align-items: center; gap: 0.5rem; flex-shrink: 0; }
.logo-link img { height: 44px; width: auto; }

/* Botón hamburguesa (solo visible en móvil) */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 34px;
  height: 34px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-left: auto;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--negro);
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

nav.main-nav {
  display: flex;
  align-items: center;
  flex: 1;
  justify-content: flex-end;
}

nav.main-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

nav.main-nav a {
  color: var(--negro);
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
}

nav.main-nav a.active,
nav.main-nav a:hover {
  color: var(--azul);
  text-decoration: none;
  border-bottom: 2px solid var(--azul);
  padding-bottom: 4px;
}

.btn-contacto {
  background: var(--azul);
  color: var(--blanco) !important;
  padding: 0.55rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  border-bottom: none !important;
  box-shadow: 0 2px 6px rgba(30, 147, 203, 0.35);
  transition: background 0.2s, box-shadow 0.2s, transform 0.15s;
  display: inline-block;
  line-height: 1.2;
}
.btn-contacto:hover {
  background: var(--azul-oscuro);
  text-decoration: none;
  box-shadow: 0 4px 10px rgba(15, 106, 153, 0.4);
  transform: translateY(-1px);
}

@media (max-width: 900px) {
  .nav-toggle { display: flex; }

  nav.main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--blanco);
    border-bottom: 1px solid var(--gris-borde);
    flex-direction: column;
    align-items: stretch;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }
  nav.main-nav.abierto { max-height: 500px; }

  nav.main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem 1.5rem 1.25rem;
  }
  nav.main-nav ul li { width: 100%; }
  nav.main-nav a {
    display: block;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gris-borde);
  }
  nav.main-nav a.active,
  nav.main-nav a:hover {
    border-bottom: 1px solid var(--gris-borde);
    padding-bottom: 0.75rem;
  }
  .btn-contacto {
    margin-top: 0.75rem;
    text-align: center;
    box-shadow: none;
  }

  header.site-header { position: sticky; }
  .header-inner { position: relative; }
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--gris-claro) 0%, #eaf3f8 100%);
  padding: 4.5rem 0;
  text-align: center;
}

.hero h1 {
  font-family: var(--fuente-titulo);
  font-size: 2.6rem;
  color: var(--negro);
  margin: 0 0 1rem;
}

.hero p.subtitulo {
  font-size: 1.2rem;
  color: var(--gris-texto);
  max-width: 700px;
  margin: 0 auto 2rem;
}

.hero-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

.btn-primario {
  background: var(--azul);
  color: var(--blanco);
  padding: 0.85rem 1.75rem;
  border-radius: 4px;
  font-weight: 600;
  display: inline-block;
}
.btn-primario:hover { background: var(--azul-oscuro); text-decoration: none; }

.btn-secundario {
  background: transparent;
  color: var(--azul-oscuro);
  border: 2px solid var(--azul);
  padding: 0.75rem 1.6rem;
  border-radius: 4px;
  font-weight: 600;
  display: inline-block;
}
.btn-secundario:hover { background: var(--azul); color: var(--blanco); text-decoration: none; }

/* Sections */
section { padding: 4rem 0; }
section.alterna { background: var(--gris-claro); }

h2.titulo-seccion {
  font-family: var(--fuente-titulo);
  font-size: 2rem;
  color: var(--negro);
  text-align: center;
  margin-bottom: 0.5rem;
}

p.intro-seccion {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3rem;
  color: var(--gris-texto);
}

/* Grid de servicios */
.grid-servicios {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.75rem;
}

.card-servicio {
  background: var(--blanco);
  border: 1px solid var(--gris-borde);
  border-radius: 8px;
  padding: 2rem 1.5rem;
  text-align: left;
  transition: box-shadow 0.2s, transform 0.2s;
}

.card-servicio:hover {
  box-shadow: 0 8px 20px rgba(0,0,0,0.08);
  transform: translateY(-3px);
}

.card-servicio .icono {
  width: 48px;
  height: 48px;
  background: var(--azul);
  border-radius: 8px;
  margin-bottom: 1rem;
}

.card-servicio h3 {
  color: var(--negro);
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
}

.card-servicio p { margin: 0 0 1rem; font-size: 0.95rem; }
.card-servicio a.link-mas { font-weight: 600; font-size: 0.9rem; }

/* Listado de puntos */
.lista-check {
  list-style: none;
  padding: 0;
  margin: 0;
}
.lista-check li {
  padding-left: 1.75rem;
  position: relative;
  margin-bottom: 0.85rem;
}
.lista-check li::before {
  content: "✓";
  color: var(--azul);
  font-weight: bold;
  position: absolute;
  left: 0;
}

/* Dos columnas */
.dos-columnas {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
@media (max-width: 768px) {
  .dos-columnas { grid-template-columns: 1fr; }
}

/* Bloque estadísticas */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2rem;
  text-align: center;
}
.stats .stat-num {
  font-family: var(--fuente-titulo);
  font-size: 2.3rem;
  color: var(--azul);
  font-weight: bold;
}
.stats .stat-label { font-size: 0.9rem; color: var(--gris-texto); }

/* CTA final */
.cta-final {
  background: var(--negro);
  color: var(--blanco);
  text-align: center;
  padding: 3.5rem 0;
}
.cta-final h2 { color: var(--blanco); font-family: var(--fuente-titulo); font-size: 1.9rem; margin-bottom: 1rem; }
.cta-final p { color: #ccc; margin-bottom: 2rem; }

/* Formulario contacto */
.form-contacto {
  display: grid;
  gap: 1.25rem;
  max-width: 600px;
  margin: 0 auto;
}
.form-contacto label {
  font-weight: 600;
  color: var(--negro);
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
}
.form-contacto input,
.form-contacto textarea {
  width: 100%;
  padding: 0.7rem;
  border: 1px solid var(--gris-borde);
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
}
.form-contacto button {
  justify-self: start;
}

.info-contacto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  text-align: center;
  margin-bottom: 3rem;
}
.info-contacto .icono-contacto { font-size: 1.8rem; margin-bottom: 0.5rem; }

/* Footer */
footer.site-footer {
  background: var(--gris-claro);
  border-top: 1px solid var(--gris-borde);
  padding: 2.5rem 0 1.5rem;
  margin-top: auto;
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 1.5rem;
}
@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.7rem; }
  .hero { padding: 3rem 0; }
  .hero p.subtitulo { font-size: 1.05rem; }
  section { padding: 2.75rem 0; }
  h2.titulo-seccion { font-size: 1.6rem; }
  .cta-final { padding: 2.75rem 0; }
  .container { padding: 0 1.25rem; }
}
.footer-inner h4 {
  color: var(--negro);
  margin: 0 0 0.75rem;
  font-size: 1rem;
}
.footer-inner ul { list-style: none; padding: 0; margin: 0; }
.footer-inner li { margin-bottom: 0.5rem; font-size: 0.9rem; }
.footer-inner img { height: 40px; margin-bottom: 0.75rem; }
.footer-bottom {
  text-align: center;
  font-size: 0.85rem;
  color: #888;
  border-top: 1px solid var(--gris-borde);
  padding-top: 1.25rem;
}

html, body { height: 100%; }
body { display: flex; flex-direction: column; min-height: 100vh; }
main { flex: 1; }