/* === Reset básico === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* === Fondo y tipografía === */
body {
  font-family: "Poppins", sans-serif;
  background: linear-gradient(135deg, #1e293b, #0f172a);
  color: #f1f5f9;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
  text-align: center;
  padding: 40px 20px;
}

/* === Contenedor principal === */
.container {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  padding: 40px 30px;
  box-shadow: 0 0 25px rgba(0, 0, 0, 0.3);
  max-width: 600px;
  width: 100%;
}

/* === Títulos === */
h1 {
  font-size: 2rem;
  margin-bottom: 10px;
  font-weight: 600;
}
.highlight {
  color: #22d3ee;
}
.subtitle {
  font-size: 1rem;
  margin-bottom: 30px;
  color: #cbd5e1;
}

/* === Botones === */
.options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.btn {
  text-decoration: none;
  background: #22d3ee;
  color: #0f172a;
  padding: 12px 16px;
  border-radius: 10px;
  font-weight: 600;
  transition: all 0.25s ease;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
}

.btn:hover {
  background: #06b6d4;
  transform: scale(1.04);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* === Bloque de palabras clave === */
.keywords-section {
  margin-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
}

.keywords-section h2 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: #94a3b8;
}

.keywords-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 15px;
}

.keywords-list p {
  color: #cbd5e1;
  font-size: 0.9rem;
  margin: 0;
  background: rgba(255, 255, 255, 0.05);
  padding: 4px 10px;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.keywords-list p:hover {
  background: #22d3ee;
  color: #0f172a;
  transform: scale(1.05);
}

/* === Responsivo === */
@media (max-width: 480px) {
  h1 {
    font-size: 1.5rem;
  }
  .btn {
    font-size: 0.95rem;
    padding: 10px;
  }
  .keywords-list {
    gap: 4px 8px;
  }
}