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

body {
  font-family: var(--font-secondary);
  font-weight: 400;
  color: var(--color-text);
  background: linear-gradient(135deg, var(--color-bg-base) 0%, var(--color-bg-warm) 100%);
  min-height: 100vh;
  line-height: 1.6;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-md);
}

header {
  text-align: center;
  padding: var(--spacing-lg) 0;
  margin-bottom: var(--spacing-lg);
}

h1 {
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: 2.5rem;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

.subtitle {
  font-size: 1.1rem;
  color: var(--color-title);
  font-weight: 500;
}

main {
  background: white;
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-lg);
}

/* Barra de progreso */
.progress-bar {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--spacing-xl);
  position: relative;
}

.progress-bar::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-bg-base);
  z-index: 0;
}

.progress-step {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
}

.step-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: white;
  border: 3px solid var(--color-bg-base);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: var(--color-text);
  transition: var(--transition);
}

.step-circle.active {
  background: var(--color-cta);
  border-color: var(--color-cta);
  color: white;
}

.step-circle.completed {
  background: var(--color-green);
  border-color: var(--color-green);
  color: white;
}

.step-label {
  margin-top: var(--spacing-xs);
  font-size: 0.85rem;
  color: var(--color-text);
  text-align: center;
}

.step-label.active {
  color: var(--color-cta);
  font-weight: 600;
}

/* Secciones del formulario */
.form-section {
  display: none;
  animation: fadeIn 0.4s ease;
}

.form-section.active {
  display: block;
}

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

/* Botones */
.btn {
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--border-radius);
  font-family: var(--font-secondary);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-block;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-cta);
  color: white;
}

.btn-primary:hover {
  background: var(--color-title);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--color-bg-base);
  color: var(--color-text);
}

.btn-secondary:hover {
  background: var(--color-accent);
}

.btn-group {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
  justify-content: space-between;
}

/* Footer */
footer {
  text-align: center;
  padding: var(--spacing-lg) 0;
  margin-top: var(--spacing-xl);
  color: var(--color-text);
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  main {
    padding: var(--spacing-md);
  }
  
  .btn-group {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
}