/* ============================================
   Estilos de formularios accesibles
   ============================================ */

:root {
  --form-spacing: var(--spacing-md);
  --form-border-color: var(--color-border);
  --form-focus-color: var(--color-blue-primary);
  --form-error-color: #dc2626;
  --form-success-color: #16a34a;
}

/* En oscuro el rojo de error necesita más luz (3.7:1 → ~7:1) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --form-error-color: #f87171;
  }
}

:root[data-theme="dark"] {
  --form-error-color: #f87171;
}

/* ============================================
   Hero de contacto
   ============================================ */

.contact-hero {
  padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-2xl);
  border-bottom: 1px solid var(--color-rule);
}

.contact-hero .hero-content {
  max-width: var(--max-width);
  margin: 0 auto;
  border-top: 2px solid var(--color-ink);
  padding-top: var(--spacing-md);
}

.contact-hero .hero-title {
  color: var(--color-ink);
}

.contact-hero .hero-description {
  font-size: 1.125rem;
  color: var(--color-text-light);
}

/* ============================================
   Sección de contacto
   ============================================ */

.contact-section {
  padding: var(--spacing-4xl) var(--spacing-lg);
  background-color: var(--color-bg);
}

.contact-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

/* ============================================
   Formulario
   ============================================ */

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.form-label {
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.95rem;
}

.form-label .required-mark {
  color: var(--form-error-color);
}

.form-input,
.form-textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: var(--spacing-md);
  border: 2px solid var(--form-border-color);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: all var(--transition-fast);
  outline: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-input:hover,
.form-textarea:hover {
  border-color: var(--color-text-muted);
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--form-focus-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input[aria-invalid="true"],
.form-textarea[aria-invalid="true"] {
  border-color: var(--form-error-color);
  background-color: rgba(220, 38, 38, 0.02);
}

.form-input[aria-invalid="true"]:focus,
.form-textarea[aria-invalid="true"]:focus {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 150px;
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Help text */
.form-help {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: calc(-1 * var(--spacing-sm));
}

/* Error messages */
.form-error {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background-color: rgba(220, 38, 38, 0.08);
  border-left: 3px solid var(--form-error-color);
  color: var(--form-error-color);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  margin-bottom: 0;
}

.form-error svg {
  flex-shrink: 0;
  margin-top: 2px;
}

/* Checkboxes y radios */
.form-options {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  cursor: pointer;
  user-select: none;
}

.form-checkbox input[type="checkbox"],
.form-checkbox input[type="radio"] {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  cursor: pointer;
  accent-color: var(--color-blue-primary);
  flex-shrink: 0;
}

.form-checkbox input[type="checkbox"]:focus,
.form-checkbox input[type="radio"]:focus {
  outline: 3px solid var(--color-blue-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

.form-checkbox span {
  flex: 1;
  padding-top: 2px;
  color: var(--color-text);
}

.form-checkbox a {
  color: var(--color-blue-primary);
  text-decoration: underline;
}

/* Fieldset */
fieldset {
  border: none;
  padding: 0;
  margin: 0;
}

legend {
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.95rem;
  margin-bottom: var(--spacing-md);
}

/* Honeypot antispam: fuera de la vista y del flujo */
.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* Aviso tras pulsar enviar (plan B por correo) */
.form-notice {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: rgba(37, 99, 235, 0.06);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: 0.9rem;
}

/* Form note */
.form-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--spacing-md);
}

/* ============================================
   Info de contacto lateral
   ============================================ */

.contact-info {
  border-top: 2px solid var(--color-ink);
  padding-top: var(--spacing-lg);
  position: sticky;
  top: 100px;
}

.contact-info h2 {
  margin-bottom: var(--spacing-xl);
  font-size: 1.5rem;
}

.info-item {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
}

.info-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.info-item h3 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-light);
}

.info-item p {
  color: var(--color-text-light);
  margin-bottom: 0;
  font-size: 0.95rem;
}

.info-item a {
  color: var(--color-blue-primary);
  font-weight: 500;
  display: inline-block;
  transition: all var(--transition-fast);
}

.info-item a:hover {
  color: var(--color-blue-dark);
  text-decoration: underline;
}

.info-note {
  font-size: 0.875rem !important;
  color: var(--color-text-light) !important; /* text-muted daba 4.3:1 sobre surface */
  margin-top: var(--spacing-sm) !important;
}

.social-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.social-list li {
  margin-bottom: var(--spacing-sm);
}

.social-list a {
  display: inline-block;
}

/* ============================================
   FAQ Section
   ============================================ */

.contact-faq {
  padding: var(--spacing-4xl) var(--spacing-lg);
}

.faq-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-2xl);
}

.faq-item {
  border-top: 1px solid var(--color-rule);
  padding: var(--spacing-lg) 0;
  cursor: pointer;
}

.faq-item[open] {
  border-color: var(--color-blue-primary);
  background-color: rgba(37, 99, 235, 0.02);
}

.faq-summary {
  font-weight: 600;
  color: var(--color-text);
  outline: none;
  user-select: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-summary::marker {
  color: var(--color-blue-primary);
}

.faq-summary:focus {
  outline: 3px solid var(--color-blue-primary);
  outline-offset: 2px;
}

.faq-summary::-webkit-details-marker {
  color: var(--color-blue-primary);
}

.faq-content {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-light);
  line-height: 1.8;
}

.faq-content p {
  margin-bottom: 0;
}

/* ============================================
   Estados del botón
   ============================================ */

.btn--success {
  background-color: var(--form-success-color) !important;
}

button[aria-busy="true"] {
  opacity: 0.8;
  pointer-events: none;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
  .contact-container {
    grid-template-columns: 1fr;
  }

  .contact-info {
    position: static;
  }

  .faq-grid {
    grid-template-columns: 1fr;
  }

  .contact-form {
    gap: var(--spacing-md);
  }
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
  .form-input,
  .form-textarea {
    background-color: var(--color-surface);
    border-color: var(--color-border);
    color: var(--color-text);
  }

  .form-input[aria-invalid="true"],
  .form-textarea[aria-invalid="true"] {
    background-color: rgba(220, 38, 38, 0.1);
  }

  .contact-info {
    background-color: var(--color-surface);
  }
}