:root {
  --azul-principal: #0a3d62;
  --azul-claro: #3c99d4;
  --celeste: #eaf6fb;
  --naranja: #f39c12;
  --texto-oscuro: #1b2631;
}

body {
  font-family: 'Poppins', sans-serif;
  color: var(--texto-oscuro);
}

/* --- Barra superior --- */
.top-bar {
  background-color: var(--azul-principal);
  color: #fff;
}
.top-bar a {
  color: #fff;
  text-decoration: none;
}
.top-bar a:hover {
  color: var(--naranja);
}

/* --- Navbar --- */
.navbar-principal {
  background: linear-gradient(90deg, var(--azul-principal), var(--azul-claro));
}
.navbar-principal .nav-link {
  font-weight: 500;
  margin: 0 .4rem;
}
.navbar-principal .nav-link:hover {
  color: var(--naranja) !important;
}

.btn-brand {
  background-color: var(--naranja);
  border-color: var(--naranja);
  color: #fff;
  font-weight: 600;
  border-radius: 30px;
  padding: .5rem 1.4rem;
}
.btn-brand:hover {
  background-color: #d97e08;
  border-color: #d97e08;
  color: #fff;
}

.btn-outline-brand {
  border: 2px solid var(--azul-principal);
  color: var(--azul-principal);
  font-weight: 600;
  border-radius: 30px;
}
.btn-outline-brand:hover {
  background-color: var(--azul-principal);
  color: #fff;
}

/* --- Hero --- */
.hero {
  background: linear-gradient(135deg, var(--azul-principal) 0%, var(--azul-claro) 100%);
  color: #fff;
  padding: 6rem 0 8rem;
  position: relative;
  overflow: hidden;
}
.hero h1 {
  font-weight: 700;
  font-size: 2.8rem;
}
.hero .bi {
  opacity: .15;
  font-size: 18rem;
  position: absolute;
  right: -2rem;
  top: -2rem;
}

/* --- Secciones --- */
.seccion-titulo {
  font-weight: 700;
  color: var(--azul-principal);
}
.seccion-subtitulo {
  color: var(--azul-claro);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
  font-size: .85rem;
}
.bg-celeste {
  background-color: var(--celeste);
}

/* --- Tarjetas de servicio --- */
.card-servicio {
  border: none;
  border-radius: 14px;
  box-shadow: 0 4px 18px rgba(10, 61, 98, .08);
  transition: transform .25s ease, box-shadow .25s ease;
  height: 100%;
}
.card-servicio:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 28px rgba(10, 61, 98, .15);
}
.icono-servicio {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background-color: var(--celeste);
  color: var(--azul-principal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

/* --- Productos --- */
.card-producto {
  border: none;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 4px 18px rgba(10, 61, 98, .08);
  transition: transform .25s ease, box-shadow .25s ease;
}
.card-producto:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 28px rgba(10, 61, 98, .15);
}
.card-producto img {
  height: 200px;
  object-fit: cover;
}
.badge-destacado {
  position: absolute;
  top: 12px;
  left: 12px;
}
.precio-producto {
  color: var(--azul-principal);
  font-weight: 700;
  font-size: 1.3rem;
}

/* --- Footer --- */
.footer-principal {
  background-color: var(--texto-oscuro);
  color: #fff;
}
.footer-link {
  color: rgba(255,255,255,.7);
  text-decoration: none;
}
.footer-link:hover {
  color: var(--naranja);
}

/* --- WhatsApp flotante --- */
.whatsapp-flotante {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background-color: #25D366;
  color: #fff;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: 0 4px 14px rgba(0,0,0,.25);
  z-index: 1050;
}
.whatsapp-flotante:hover {
  color: #fff;
  transform: scale(1.08);
}

/* --- Franja de estadísticas --- */
.franja-stats {
  background-color: var(--azul-principal);
  color: #fff;
}
.franja-stats .stat-numero {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--naranja);
}