/**
 * Contact Form Styles - Cárnicas El Cavernícola
 * Arquitectura BEM (Block Element Modifier)
 * Paleta corporativa: Rojo #c82333, Negro #000000, Gris #666
 */

/* ========================================
   1. VARIABLES Y TOKENS DE DISEÑO
   ======================================== */
:root {
  --contact-primary-color: #c82333;
  --contact-primary-dark: #a01d28;
  --contact-text-color: #333;
  --contact-text-muted: #666;
  --contact-border-color: #d9d9d9;
  --contact-bg-light: #f8f9fa;
  --contact-error-color: #dc3545;
  --contact-success-color: #28a745;
  
  --contact-spacing-xs: 8px;
  --contact-spacing-sm: 12px;
  --contact-spacing-md: 16px;
  --contact-spacing-lg: 24px;
  --contact-spacing-xl: 32px;
  
  --contact-border-radius: 8px;
  --contact-transition: all 0.2s ease;
  --contact-input-height: 44px;
}

/* ========================================
   2. CONTENEDOR PRINCIPAL
   ======================================== */
.contact-form {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--contact-spacing-xl);
  background: #fff;
}

.contact-form__wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-spacing-md);
}

/* ========================================
   3. HEADER Y TÍTULOS
   ======================================== */
.contact-form__header {
  margin-bottom: var(--contact-spacing-lg);
  border-bottom: 3px solid var(--contact-primary-color);
  padding-bottom: var(--contact-spacing-md);
}

.contact-form__title {
  font-size: 28px;
  font-weight: 700;
  color: var(--contact-text-color);
  margin: 0 0 var(--contact-spacing-sm) 0;
  line-height: 1.3;
}

.contact-form__subtitle {
  font-size: 16px;
  color: var(--contact-text-muted);
  margin: 0;
  line-height: 1.5;
}

/* ========================================
   4. FIELDS Y LABELS
   ======================================== */
.contact-form__field {
  display: flex;
  flex-direction: column;
  gap: var(--contact-spacing-xs);
  margin-bottom: var(--contact-spacing-md);
}

.contact-form__label {
  font-size: 15px;
  font-weight: 500;
  color: var(--contact-text-color);
  display: flex;
  align-items: center;
  gap: 4px;
}

.contact-form__label--required::after {
  content: "*";
  color: var(--contact-primary-color);
  font-weight: bold;
  margin-left: 2px;
}

.contact-form__help-text {
  font-size: 13px;
  color: var(--contact-text-muted);
  margin-top: 4px;
  line-height: 1.4;
}

/* ========================================
   5. INPUTS Y CONTROLES
   ======================================== */
.contact-form__input,
.contact-form__select,
.contact-form__textarea {
  width: 100%;
  min-height: var(--contact-input-height);
  padding: 12px 16px;
  border: 1px solid var(--contact-border-color);
  border-radius: var(--contact-border-radius);
  font-size: 15px;
  font-family: inherit;
  color: var(--contact-text-color);
  background-color: #fff;
  transition: var(--contact-transition);
  box-sizing: border-box;
}

.contact-form__input:focus,
.contact-form__select:focus,
.contact-form__textarea:focus {
  outline: none;
  border: 2px solid var(--contact-primary-color);
  box-shadow: 0 0 0 3px rgba(200, 35, 51, 0.1);
  padding: 11px 15px; /* Compensar el borde extra */
}

.contact-form__input:hover,
.contact-form__select:hover,
.contact-form__textarea:hover {
  border-color: #aaa;
}

.contact-form__textarea {
  min-height: 120px;
  resize: vertical;
  line-height: 1.5;
}

.contact-form__select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath fill='%23333' d='M0 0l6 8 6-8z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  cursor: pointer;
}

/* ========================================
   6. ESTADOS DE ERROR Y VALIDACIÓN
   ======================================== */
.contact-form__input--invalid,
.contact-form__select--invalid,
.contact-form__textarea--invalid {
  border-color: var(--contact-error-color);
  background-color: #fff5f5;
}

.contact-form__input--invalid:focus,
.contact-form__select--invalid:focus,
.contact-form__textarea--invalid:focus {
  border-color: var(--contact-error-color);
  box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.contact-form__error {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--contact-error-color);
  margin-top: 4px;
  line-height: 1.4;
}

.contact-form__error::before {
  content: "⚠";
  font-size: 14px;
}

.contact-form__field--error .contact-form__label {
  color: var(--contact-error-color);
}

/* ========================================
   7. FILE INPUT
   ======================================== */
.contact-form__file-wrapper {
  position: relative;
}

.contact-form__file-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.contact-form__file-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background-color: var(--contact-bg-light);
  border: 2px dashed var(--contact-border-color);
  border-radius: var(--contact-border-radius);
  font-size: 14px;
  color: var(--contact-text-color);
  cursor: pointer;
  transition: var(--contact-transition);
}

.contact-form__file-button:hover {
  border-color: var(--contact-primary-color);
  background-color: rgba(200, 35, 51, 0.05);
}

.contact-form__file-name {
  font-size: 13px;
  color: var(--contact-text-muted);
  margin-top: 8px;
  font-style: italic;
}

/* ========================================
   8. GDPR CHECKBOX
   ======================================== */
.contact-form__gdpr {
  margin: var(--contact-spacing-lg) 0;
  padding: var(--contact-spacing-md);
  background-color: var(--contact-bg-light);
  border-radius: var(--contact-border-radius);
  border: 1px solid #e0e0e0;
}

.contact-form__checkbox-wrapper {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
}

.contact-form__checkbox-input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.contact-form__checkbox-custom {
  position: relative;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  background-color: #fff;
  border: 2px solid var(--contact-border-color);
  border-radius: 4px;
  transition: var(--contact-transition);
}

.contact-form__checkbox-input:checked ~ .contact-form__checkbox-custom {
  background-color: var(--contact-primary-color);
  border-color: var(--contact-primary-color);
}

.contact-form__checkbox-custom::after {
  content: "";
  position: absolute;
  display: none;
  left: 7px;
  top: 3px;
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.contact-form__checkbox-input:checked ~ .contact-form__checkbox-custom::after {
  display: block;
}

.contact-form__checkbox-input:focus ~ .contact-form__checkbox-custom {
  box-shadow: 0 0 0 3px rgba(200, 35, 51, 0.2);
  outline: 2px solid transparent;
}

.contact-form__checkbox-input:invalid ~ .contact-form__checkbox-custom {
  border-color: var(--contact-error-color);
}

.contact-form__checkbox-label {
  font-size: 14px;
  color: var(--contact-text-color);
  line-height: 1.5;
  user-select: none;
}

.contact-form__checkbox-label a {
  color: var(--contact-primary-color);
  text-decoration: underline;
  font-weight: 600;
  transition: var(--contact-transition);
}

.contact-form__checkbox-label a:hover {
  color: var(--contact-primary-dark);
  text-decoration: none;
}

/* ========================================
   9. BOTÓN DE ENVÍO
   ======================================== */
.contact-form__actions {
  margin-top: var(--contact-spacing-lg);
  display: flex;
  gap: var(--contact-spacing-md);
  align-items: center;
}

.contact-form__submit {
  min-height: var(--contact-input-height);
  padding: 12px 32px;
  background-color: var(--contact-primary-color);
  color: #fff;
  border: none;
  border-radius: var(--contact-border-radius);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--contact-transition);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.contact-form__submit:hover {
  background-color: var(--contact-primary-dark);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
  transform: translateY(-1px);
}

.contact-form__submit:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.contact-form__submit:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(200, 35, 51, 0.3);
}

.contact-form__submit:disabled {
  background-color: #ccc;
  cursor: not-allowed;
  opacity: 0.6;
  box-shadow: none;
  transform: none;
}

/* ========================================
   10. NOTIFICACIONES
   ======================================== */
.contact-form__notification {
  padding: var(--contact-spacing-md);
  border-radius: var(--contact-border-radius);
  margin-bottom: var(--contact-spacing-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  line-height: 1.5;
}

.contact-form__notification--success {
  background-color: #d4edda;
  border: 1px solid #c3e6cb;
  color: #155724;
}

.contact-form__notification--error {
  background-color: #f8d7da;
  border: 1px solid #f5c6cb;
  color: #721c24;
}

.contact-form__notification::before {
  font-size: 20px;
}

.contact-form__notification--success::before {
  content: "✓";
  color: var(--contact-success-color);
}

.contact-form__notification--error::before {
  content: "✕";
  color: var(--contact-error-color);
}

/* ========================================
   11. HONEYPOT (ANTI-SPAM)
   ======================================== */
.contact-form__honeypot {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

/* ========================================
   12. RESPONSIVE DESIGN
   ======================================== */

/* Tablet (768px - 991px) */
@media (min-width: 768px) {
  .contact-form {
    padding: var(--contact-spacing-xl) 40px;
  }
  
  .contact-form__title {
    font-size: 32px;
  }
}

/* Desktop (≥992px) */
@media (min-width: 992px) {
  .contact-form__wrapper--two-cols {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--contact-spacing-lg);
  }
}

/* Mobile (<576px) */
@media (max-width: 575px) {
  .contact-form {
    padding: var(--contact-spacing-md);
  }
  
  .contact-form__title {
    font-size: 24px;
  }
  
  .contact-form__input,
  .contact-form__select,
  .contact-form__textarea {
    font-size: 16px; /* Evita zoom en iOS */
  }
  
  .contact-form__submit {
    width: 100%;
    justify-content: center;
  }
  
  .contact-form__actions {
    flex-direction: column;
    width: 100%;
  }
}

/* ========================================
   13. ACCESIBILIDAD Y A11Y
   ======================================== */

/* Focus visible para navegación por teclado */
.contact-form *:focus-visible {
  outline: 2px solid var(--contact-primary-color);
  outline-offset: 2px;
}

/* Ocultar visualmente pero mantener para lectores de pantalla */
.contact-form__sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .contact-form__input,
  .contact-form__select,
  .contact-form__textarea {
    border-width: 2px;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .contact-form *,
  .contact-form *::before,
  .contact-form *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ========================================
   14. PRINT STYLES
   ======================================== */
@media print {
  .contact-form__submit,
  .contact-form__file-button {
    display: none;
  }
  
  .contact-form {
    box-shadow: none;
    border: 1px solid #000;
  }
}

/* ========================================
   15. FORM FOOTER - FONDO BLANCO
   ======================================== */
.form-footer {
  background-color: #fff !important;
  background: #fff !important;
  padding: 20px 0;
}

.login-form .form-footer {
  background-color: #fff !important;
  background: #fff !important;
}

/* Asegurar que el footer del formulario de contacto también tenga fondo blanco */
.contact-form .form-footer,
.contact-form__actions {
  background-color: #fff !important;
  background: #fff !important;
}