/* Reset y configuración base común */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: #333;
}

/* Botones base */
.btn {
  padding: 0.75rem 2rem;
  border: none;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
  text-align: center;
  min-width: 120px;
}

.btn-primary {
  background: linear-gradient(135deg, #4caf50, #45a049);
  color: white;
  width: 100%;
  margin-bottom: 1rem;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(76, 175, 80, 0.3);
}

.btn-secondary {
  background: linear-gradient(135deg, #2196f3, #1976d2);
  color: white;
  width: 100%;
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(33, 150, 243, 0.3);
}

/* Animaciones comunes */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive base */
@media (max-width: 768px) {
  .btn {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
  }
}