/* ==========================================================================
   CHILDEX B2B - Unified Form Design System
   Warm ivory, deep charcoal, olive, and coffee identity.
   WCAG AA compliant contrast, 10-12px radius, opaque light surfaces.
   ========================================================================== */

:root {
  --form-bg: #FFFFFF;
  --form-bg-alt: #FDFCFA;
  --form-border: #D8D1C5;
  --form-border-hover: #B8B0A2;
  --form-border-focus: #5F674F;
  --form-text: #272520;
  --form-label: #272520;
  --form-placeholder: #736D64; /* ~4.5:1 WCAG contrast on #fff */
  --form-shadow-focus: rgba(95, 103, 79, 0.2);
  --form-radius: 10px;
  
  --form-error: #B91C1C;
  --form-error-bg: #FEF2F2;
  --form-error-border: #FCA5A5;
  
  --form-success: #15803D;
  --form-success-bg: #F0FDF4;
  --form-success-border: #86EFAC;
}

/* Base Form Card */
.form-card {
  background-color: var(--form-bg);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 2.5rem;
  box-shadow: 0 12px 36px rgba(39, 37, 32, 0.06);
  position: relative;
}

@media (max-width: 600px) {
  .form-card {
    padding: 1.5rem 1.25rem;
    border-radius: 12px;
  }
}

/* Form Sections */
.form-section {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border-light);
}

.form-section:last-of-type {
  border-bottom: none;
  margin-bottom: 1.25rem;
  padding-bottom: 0;
}

.form-section-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.form-section-badge {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--color-olive-dark);
  color: #FFFFFF;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.form-section-title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--color-coffee-dark);
  margin: 0;
  line-height: 1.25;
}

/* Grid Layouts */
.form-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
}

@media (max-width: 768px) {
  .form-grid-2 {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
}

.form-group {
  margin-bottom: 1.25rem;
  text-align: left;
  display: flex;
  flex-direction: column;
}

.form-grid-2 .form-group {
  margin-bottom: 0;
}

.form-group.span-2 {
  grid-column: span 2;
}

@media (max-width: 768px) {
  .form-group.span-2 {
    grid-column: span 1;
  }
}

/* Labels */
.form-label,
.form-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--form-label);
  margin-bottom: 0.45rem;
  line-height: 1.3;
}

.form-required,
.form-group label .required,
.form-label .required {
  color: var(--form-error);
  font-weight: 800;
  margin-left: 0.2rem;
}

/* Form Controls (Inputs, Selects, Textareas) */
.form-control {
  width: 100%;
  min-height: 48px;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 0.935rem;
  line-height: 1.5;
  color: var(--form-text);
  background-color: var(--form-bg);
  border: 1px solid var(--form-border);
  border-radius: var(--form-radius);
  transition: border-color 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
  box-sizing: border-box;
}

.form-control::placeholder {
  color: var(--form-placeholder);
  opacity: 1;
}

.form-control:hover:not(:disabled):not(:focus) {
  border-color: var(--form-border-hover);
}

.form-control:focus {
  outline: none;
  border-color: var(--form-border-focus);
  box-shadow: 0 0 0 3px var(--form-shadow-focus);
  background-color: #FFFFFF;
}

.form-control:disabled,
.form-control[readonly] {
  background-color: #F6F3ED;
  color: #7D766A;
  border-color: #E2DBD0;
  cursor: not-allowed;
}

/* Browser Autofill Styling */
.form-control:-webkit-autofill,
.form-control:-webkit-autofill:hover,
.form-control:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--form-text);
  -webkit-box-shadow: 0 0 0px 1000px #FFFFFF inset !important;
  box-shadow: 0 0 0px 1000px #FFFFFF inset !important;
  transition: background-color 5000s ease-in-out 0s;
}

/* Select Dropdowns */
select.form-control {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235F674F' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 16px 16px;
  padding-right: 2.75rem;
  cursor: pointer;
}

select.form-control option {
  background-color: #FFFFFF;
  color: var(--form-text);
  padding: 0.5rem;
}

/* Textarea */
textarea.form-control {
  min-height: 115px;
  resize: vertical;
  padding-top: 0.85rem;
}

/* Inline Errors */
.form-control.is-invalid,
.has-error .form-control {
  border-color: var(--form-error) !important;
  box-shadow: 0 0 0 3px rgba(185, 28, 28, 0.12) !important;
}

.form-error-msg {
  display: block;
  font-size: 0.82rem;
  color: var(--form-error);
  margin-top: 0.35rem;
  font-weight: 600;
}

/* Alerts / Notices */
.form-notice-success {
  background-color: var(--form-success-bg);
  border: 1px solid var(--form-success-border);
  color: var(--form-success);
  padding: 1rem 1.25rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  font-weight: 600;
}

.form-notice-error {
  background-color: var(--form-error-bg);
  border: 1px solid var(--form-error-border);
  color: var(--form-error);
  padding: 1rem 1.25rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  font-weight: 600;
}

/* Primary Form Submit Button */
.btn-form-submit {
  width: 100%;
  min-height: 50px;
  padding: 0.85rem 1.75rem;
  background-color: var(--color-olive-dark);
  color: #FFFFFF;
  border: 1px solid var(--color-olive-dark);
  border-radius: var(--form-radius);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: background-color 0.18s ease, transform 0.15s ease, box-shadow 0.18s ease;
  box-shadow: 0 2px 6px rgba(95, 103, 79, 0.18);
}

.btn-form-submit:hover:not(:disabled) {
  background-color: #4A513D;
  border-color: #4A513D;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(95, 103, 79, 0.28);
}

.btn-form-submit:focus-visible {
  outline: 3px solid rgba(95, 103, 79, 0.4);
  outline-offset: 2px;
}

.btn-form-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Custom File Upload Box */
.custom-file-upload {
  position: relative;
  background: var(--form-bg-alt);
  border: 1.5px dashed var(--form-border);
  border-radius: var(--form-radius);
  padding: 1.5rem 1.25rem;
  text-align: center;
  transition: border-color 0.2s ease, background-color 0.2s ease;
  cursor: pointer;
}

.custom-file-upload:hover,
.custom-file-upload:focus-within {
  border-color: var(--color-olive-dark);
  background-color: #FFFFFF;
}

.custom-file-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
}

.custom-file-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  pointer-events: none;
}

.custom-file-icon {
  color: var(--color-olive-dark);
  display: flex;
  align-items: center;
  justify-content: center;
}

.custom-file-prompt {
  font-size: 0.925rem;
  font-weight: 600;
  color: var(--color-text);
}

.custom-file-prompt span {
  color: var(--color-olive-dark);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.custom-file-hint {
  font-size: 0.8rem;
  color: var(--form-placeholder);
}

.custom-file-preview {
  display: none;
  align-items: center;
  justify-content: space-between;
  background: #FFFFFF;
  border: 1px solid var(--form-border);
  border-radius: 6px;
  padding: 0.5rem 0.85rem;
  margin-top: 0.75rem;
  text-align: left;
}

.custom-file-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 80%;
}

.custom-file-clear {
  background: none;
  border: none;
  color: var(--form-error);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
}

.custom-file-clear:hover {
  background-color: var(--form-error-bg);
}

/* Checkbox Label */
.form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  font-size: 0.885rem;
  color: var(--color-text);
  cursor: pointer;
  user-select: none;
  line-height: 1.5;
}

.form-checkbox {
  width: 20px;
  height: 20px;
  min-width: 20px;
  min-height: 20px;
  margin-top: 0.15rem;
  accent-color: var(--color-olive-dark);
  cursor: pointer;
  border-radius: 4px;
}

.form-checkbox-label a {
  color: var(--color-olive-dark);
  text-decoration: underline;
  font-weight: 600;
}

/* WhatsApp Standard Action Button */
.btn-whatsapp {
  min-height: 44px;
  padding: 0.75rem 1.35rem;
  background-color: #25D366;
  color: #FFFFFF !important;
  border: 1px solid #20BD5A;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.925rem;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  transition: transform 0.15s ease, background-color 0.18s ease, box-shadow 0.18s ease;
  cursor: pointer;
  line-height: 1;
}

.btn-whatsapp:hover {
  background-color: #20BD5A;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.35);
}

.btn-whatsapp:focus-visible {
  outline: 2px solid #128C7E;
  outline-offset: 2px;
}

/* Subtle Card Hover Effect */
.card-hover-lift {
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.card-hover-lift:hover {
  transform: translateY(-2px);
  border-color: var(--form-border-hover);
  box-shadow: 0 8px 24px rgba(39, 37, 32, 0.08);
}

@media (prefers-reduced-motion: reduce) {
  .btn-form-submit,
  .btn-whatsapp,
  .card-hover-lift,
  .form-control {
    transition: none !important;
    transform: none !important;
  }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}