:root {
  --azul: #5c8ecf;
  --azul-oscuro: #004C97;
  --turquesa: #00B4F0;
  --gris-claro: #f8fafc;
  --texto: #0f172a;
  --linea: #e2e8f0;
  --exito: #d1fae5;
  --exito-texto: #065f46;
}

body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: var(--gris-claro);
  color: var(--texto);
}

/* Encabezado */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: var(--azul);
  padding: 10px 20px;
  position: relative;
  z-index: 100;
}

.logo {
  height: 80px;
  max-width: 100%;
}

/* Botón hamburguesa */
.menu-toggle {
  background: none;
  border: none;
  font-size: 2em;
  color: white;
  cursor: pointer;
  display: none;
}

/* Menú principal */
.main-menu {
  flex-grow: 1;
}

.main-menu ul {
  list-style: none;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 20px;
  margin: 0;
  padding: 0;
}

.main-menu li {
  position: relative;
}

.main-menu a {
  color: white;
  text-decoration: none;
  font-weight: 600;
  padding: 15px 10px;
  display: block;
}

.main-menu a:hover,
.main-menu a.active {
  background-color: var(--turquesa);
  border-radius: 6px;
}

/* Submenú */
.submenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--azul);
  border-radius: 0 0 6px 6px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  z-index: 1000;
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.submenu.show {
  display: block;
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.submenu li a {
  padding: 10px 15px;
  color: white;
  font-weight: 500;
}

.submenu li a:hover {
  background-color: var(--turquesa);
}

/* Formulario */
.contacto {
  padding: 60px 20px;
  background-color: white;
}

.formulario-contenedor {
  max-width: 600px;
  margin: auto;
  background-color: #fff;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

form label {
  font-weight: bold;
  display: block;
  margin-top: 20px;
}

form input,
form textarea {
  width: 100%;
  padding: 10px;
  margin-top: 5px;
  border: 1px solid var(--linea);
  border-radius: 5px;
  font-size: 1em;
}

button {
  background-color: var(--turquesa);
  color: white;
  border: none;
  padding: 12px 20px;
  font-size: 1em;
  border-radius: 5px;
  margin-top: 30px;
  cursor: pointer;
  width: 100%;
  transition: background-color 0.3s ease, transform 0.2s ease;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

button:hover {
  background-color: #0090C0;
  transform: scale(1.03);
}

/* Mensaje de éxito */
.mensaje-exito {
  background-color: var(--exito);
  color: var(--exito-texto);
  padding: 15px;
  border-radius: 6px;
  margin-top: 20px;
  text-align: center;
  font-weight: bold;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  display: none;
}

/* Footer */
footer {
  text-align: center;
  padding: 10px;
  background-color: var(--azul-oscuro);
  color: white;
  font-size: 0.9em;
  margin-top: 60px;
}

/* Animación */
.fade-in {
  animation: fadeIn 1s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsive móvil */
@media (max-width: 768px) {
  .top-bar {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .logo {
    height: 60px;
  }

  .menu-toggle {
    display: block;
  }

  .main-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--azul);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    padding: 10px 0;
  }

  .main-menu.show {
    display: block;
  }

  .main-menu ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    margin: 0;
    padding: 0;
  }

  .main-menu a {
    padding: 12px 20px;
    font-size: 1rem;
    width: 100%;
  }

  .submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--azul);
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    border-radius: 0 0 6px 6px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
  }

  .submenu.show {
    display: block;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .submenu li a {
    padding: 12px 20px;
    color: white;
    display: block;
  }

  .formulario-contenedor {
    margin: 30px 15px;
  }

  footer {
    font-size: 0.8em;
    padding: 10px;
  }
}