:root {
  --azul: #005f73;
  --verde: #0a9396;
  --gris-claro: #e0f7fa;
  --negro: #222;
  --blanco: #fff;
}

body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: #f5f5f5;
  color: var(--negro);
}

header {
  background: linear-gradient(0deg, var(--azul), var(--gris-claro));
  color: var(--blanco);
  text-align: center;
  padding: 3rem 1rem;
}

header h1 {
  margin: 0;
  font-size: 2.8rem;
}

header p {
  font-size: 1.2rem;
  margin: 1rem 0;
}

.logo {
  max-width: 512px;
  width: 100%;
  height: auto;
  display: block;
  margin: 0 auto 1rem auto;
}

.download-btn {
  background-color: #ecc634;
  color: rgb(39, 31, 31);
  padding: 0.8rem 1.5rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  display: inline-block;
  margin-top: 1rem;
}

section {
  padding: 2rem 1rem;
  max-width: 1000px;
  margin: auto;
}

.features, .pricing, .testimonials, .contact {
  background-color: var(--blanco);
  border-radius: 10px;
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.05);
}

.features h2, .pricing h2, .testimonials h2, .contact h2 {
  color: var(--azul);
  margin-top: 0;
}

ul {
  list-style-type: square;
  padding-left: 1.5rem;
}

.pricing-table {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

.plan {
  background-color: var(--gris-claro);
  border-radius: 10px;
  padding: 1.5rem;
  flex: 1 1 250px;
  text-align: center;
}

.plan h3 {
  color: var(--verde);
  margin-top: 0;
}

.plan .price {
  font-size: 1.5rem;
  font-weight: bold;
  margin-top: 0.5rem;
}

.testimonials blockquote {
  border-left: 4px solid var(--verde);
  padding-left: 1rem;
  margin: 1rem 0;
  font-style: italic;
  color: #555;
}

img {
  width: 100%;
  border-radius: 8px;
  margin-top: 1rem;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

input, textarea {
  padding: 0.75rem;
  font-size: 1rem;
  border-radius: 6px;
  border: 1px solid #ccc;
}

button {
  background-color: var(--azul);
  color: white;
  border: none;
  padding: 0.75rem;
  border-radius: 6px;
  cursor: pointer;
  font-weight: bold;
}

button:hover {
  background-color: var(--verde);
}

footer {
  background-color: var(--negro);
  color: #ccc;
  text-align: center;
  padding: 1rem;
}

@media (max-width: 600px) {
  header h1 {
    font-size: 2rem;
  }

  .plan {
    flex: 1 1 100%;
  }
}