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

body {
  font-family: Arial, Helvetica, sans-serif;
  background: #f6f3ee;
  color: #1b2a32;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 40px;
  background: #f7f5f0;
  border-bottom: 3px solid #1d4ed8;
}

.logo-box {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-circulo {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0b6b6b, #2ee0a0);
  color: white;
  font-weight: bold;
  font-size: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-box h2 {
  font-size: 20px;
  letter-spacing: 1px;
}

.slogan {
  font-size: 11px;
  color: #667;
  text-transform: uppercase;
}

.menu a {
  margin-left: 22px;
  text-decoration: none;
  color: #14b8d4;
  font-weight: bold;
}

.menu a:hover {
  color: #0f766e;
}

.hero {
  min-height: 70vh;
  background-image: url("https://images.unsplash.com/photo-1521737604893-d14cc237f11d?auto=format&fit=crop&w=1600&q=80");
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: white;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
}

.hero-texto {
  position: relative;
  max-width: 750px;
  padding: 20px;
}

.hero h1 {
  font-size: 42px;
  margin-bottom: 14px;
}

.hero p {
  font-size: 18px;
  margin-bottom: 24px;
}

.boton {
  background: #2ee0a0;
  color: #06332c;
  text-decoration: none;
  padding: 12px 26px;
  border-radius: 30px;
  font-weight: bold;
  display: inline-block;
}

.boton:hover {
  background: #7ff3c4;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.25);
}

.contenido {
  padding: 50px 40px;
}

.titulo-seccion {
  text-align: center;
  margin-bottom: 30px;
}

.tarjetas {
  display: flex;
  gap: 20px;
}

.tarjeta {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  flex: 1;
  border: 1px solid #e4ddd0;
  transition: 0.25s;
}

.tarjeta img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.tarjeta h3,
.tarjeta p {
  padding-left: 16px;
  padding-right: 16px;
}

.tarjeta h3 {
  margin-top: 14px;
  margin-bottom: 8px;
  color: #065f56;
}

.tarjeta p {
  padding-bottom: 18px;
}

.tarjeta:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.18);
}

.contacto {
  margin: 10px 40px 50px;
  background: #0c3b36;
  color: white;
  text-align: center;
  padding: 40px 20px;
  border-radius: 20px;
}

.contacto p {
  margin: 12px 0 20px;
}

.boton-oscuro {
  background: white;
}

.footer {
  background: #0a1c22;
  color: #d7e2e6;
  text-align: center;
  padding: 22px;
}

@media (max-width: 800px) {
  .header {
    flex-direction: column;
    gap: 12px;
  }

  .tarjetas {
    flex-direction: column;
  }

  .hero h1 {
    font-size: 30px;
  }
}