/* =========================================================
   Forms CSS
   ASP.NET Core Razor Pages frontend starter

   Purpose:
   - Provide reusable form styles for public forms and admin forms.
   - Use for contact forms, reservation request forms, workshop forms,
     admin create/edit forms and filter forms.
   - Use with DesignSystem/design-tokens.css.
========================================================= */

/* =========================================================
   1. Base Form Layout
========================================================= */

.form-custom {
  display: grid;
  gap: var(--space-4, 1rem);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4, 1rem);
}

.form-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4, 1rem);
}

.form-full {
  grid-column: 1 / -1;
}

.form-group-custom {
  display: grid;
  gap: var(--space-2, 0.5rem);
}

.form-actions-custom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3, 0.75rem);
  align-items: center;
  margin-top: var(--space-3, 0.75rem);
}

/* =========================================================
   2. Labels
========================================================= */

.form-label-custom {
  margin: 0;
  font-size: var(--text-sm, 0.875rem);
  font-weight: var(--weight-semibold, 600);
  color: var(--color-text, #1f2933);
}

.form-label-custom.required::after {
  content: " *";
  color: var(--color-danger, #b42318);
}

/* =========================================================
   3. Inputs / Selects / Textareas
========================================================= */

.form-control-custom,
.form-select-custom,
.form-textarea-custom {
  width: 100%;
  min-height: 46px;

  padding: 0.875rem 1rem;

  border: 1px solid var(--color-border-strong, #d0d5dd);
  border-radius: var(--radius-lg, 1rem);

  font-family: var(--font-body, system-ui, sans-serif);
  font-size: var(--text-base, 1rem);
  line-height: 1.4;

  color: var(--color-text, #1f2933);
  background: var(--color-surface, #ffffff);

  /* box-shadow (focus ring) is intentionally not transitioned. */
  transition:
    border-color var(--transition-base, 220ms ease),
    background-color var(--transition-base, 220ms ease);
}

.form-control-custom::placeholder,
.form-textarea-custom::placeholder {
  color: color-mix(in srgb, var(--color-text-muted, #667085) 72%, transparent);
}

.form-control-custom:hover,
.form-select-custom:hover,
.form-textarea-custom:hover {
  border-color: color-mix(
    in srgb,
    var(--color-primary, #1f3a5f) 35%,
    var(--color-border-strong, #d0d5dd)
  );
}

.form-control-custom:focus,
.form-select-custom:focus,
.form-textarea-custom:focus {
  outline: none;
  border-color: var(--color-primary, #1f3a5f);
  box-shadow: 0 0 0 4px
    color-mix(in srgb, var(--color-primary, #1f3a5f) 14%, transparent);
}

.form-control-custom:disabled,
.form-select-custom:disabled,
.form-textarea-custom:disabled {
  cursor: not-allowed;
  opacity: 0.65;
  background: var(--color-surface-soft, #f9fafb);
}

.form-textarea-custom {
  min-height: 140px;
  resize: vertical;
}

/* =========================================================
   4. Helper / Validation Text
========================================================= */

.form-help-custom {
  margin: 0;
  font-size: var(--text-sm, 0.875rem);
  color: var(--color-text-muted, #667085);
}

.form-validation-custom,
.field-validation-error {
  display: block;
  margin-top: var(--space-1, 0.25rem);
  font-size: var(--text-sm, 0.875rem);
  font-weight: var(--weight-medium, 500);
  color: var(--color-danger, #b42318);
}

.validation-summary-errors {
  padding: var(--space-4, 1rem);
  margin-bottom: var(--space-4, 1rem);

  color: var(--color-danger, #b42318);
  background: var(--color-danger-light, #feeceb);
  border: 1px solid
    color-mix(in srgb, var(--color-danger, #b42318) 22%, transparent);
  border-radius: var(--radius-lg, 1rem);
}

.validation-summary-errors ul {
  margin: 0;
  padding-left: 1.25rem;
}

/* =========================================================
   5. Invalid / Valid States
========================================================= */

.form-control-custom.input-validation-error,
.form-select-custom.input-validation-error,
.form-textarea-custom.input-validation-error {
  border-color: var(--color-danger, #b42318);
  box-shadow: 0 0 0 4px
    color-mix(in srgb, var(--color-danger, #b42318) 10%, transparent);
}

.form-control-custom.is-valid,
.form-select-custom.is-valid,
.form-textarea-custom.is-valid {
  border-color: var(--color-success, #2f7d4f);
}

/* =========================================================
   6. Checkbox / Radio
========================================================= */

.form-check-custom {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3, 0.75rem);
}

.form-check-input-custom {
  width: 1.125rem;
  height: 1.125rem;
  margin-top: 0.15rem;
  accent-color: var(--color-primary, #1f3a5f);
}

.form-check-label-custom {
  font-size: var(--text-sm, 0.875rem);
  line-height: var(--line-normal, 1.6);
  color: var(--color-text, #1f2933);
}

/* =========================================================
   7. Public Form Card
========================================================= */

.public-form-card {
  padding: var(--space-6, 2rem);
  background: var(--color-surface, #ffffff);
  border: 1px solid var(--color-border, #e4e7ec);
  border-radius: var(--radius-2xl, 2rem);
  box-shadow: var(--shadow-md, 0 12px 28px rgba(16, 24, 40, 0.1));
}

.public-form-header {
  margin-bottom: var(--space-5, 1.5rem);
}

.public-form-title {
  margin: 0;
  font-size: var(--text-2xl, 2rem);
  font-weight: var(--weight-bold, 700);
  color: var(--color-text, #1f2933);
}

.public-form-description {
  margin-top: var(--space-2, 0.5rem);
  margin-bottom: 0;
  color: var(--color-text-muted, #667085);
}

/* =========================================================
   8. Reservation / Contact Form Section
========================================================= */

.form-section-custom {
  padding-block: var(--section-padding-md, clamp(3.5rem, 7vw, 6rem));
  background: var(--color-background, #f7f8fa);
}

.form-section-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.form-section-info {
  position: sticky;
  top: 6rem;
}

.form-section-eyebrow {
  margin-bottom: var(--space-3, 0.75rem);
  font-size: var(--text-xs, 0.75rem);
  font-weight: var(--weight-bold, 700);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary, #1f3a5f);
}

.form-section-title {
  margin: 0;
  font-size: clamp(2rem, 4vw, var(--text-4xl, 3.25rem));
  line-height: var(--line-tight, 1.15);
  color: var(--color-text, #1f2933);
}

.form-section-text {
  margin-top: var(--space-4, 1rem);
  margin-bottom: 0;
  color: var(--color-text-muted, #667085);
  line-height: var(--line-relaxed, 1.75);
}

/* =========================================================
   9. Contact Detail List
========================================================= */

.contact-detail-list {
  display: grid;
  gap: var(--space-4, 1rem);
  margin-top: var(--space-6, 2rem);
}

.contact-detail-item {
  display: flex;
  gap: var(--space-3, 0.75rem);
  align-items: flex-start;
}

.contact-detail-icon {
  width: 2.5rem;
  height: 2.5rem;
  flex: 0 0 auto;

  display: inline-flex;
  align-items: center;
  justify-content: center;

  color: var(--color-primary, #1f3a5f);
  background: var(--color-primary-light, #e8eef6);
  border-radius: var(--radius-lg, 1rem);
}

.contact-detail-title {
  display: block;
  font-size: var(--text-sm, 0.875rem);
  font-weight: var(--weight-bold, 700);
  color: var(--color-text, #1f2933);
}

.contact-detail-text {
  display: block;
  margin-top: 0.125rem;
  font-size: var(--text-sm, 0.875rem);
  color: var(--color-text-muted, #667085);
}

/* =========================================================
   10. Admin Forms
========================================================= */

.admin-form-card {
  padding: var(--space-5, 1.5rem);
  background: var(--admin-surface, #ffffff);
  border: 1px solid var(--admin-border, #e5e7eb);
  border-radius: var(--radius-lg, 1rem);
  box-shadow: var(--admin-shadow, 0 10px 24px rgba(15, 23, 42, 0.08));
}

.admin-form-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4, 1rem);
  margin-bottom: var(--space-5, 1.5rem);
  padding-bottom: var(--space-4, 1rem);
  border-bottom: 1px solid var(--admin-border, #e5e7eb);
}

.admin-form-title {
  margin: 0;
  font-size: var(--text-xl, 1.5rem);
  font-weight: var(--weight-bold, 700);
  color: var(--admin-text, #111827);
}

.admin-form-description {
  margin-top: var(--space-1, 0.25rem);
  margin-bottom: 0;
  font-size: var(--text-sm, 0.875rem);
  color: var(--admin-muted, #6b7280);
}

.admin-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4, 1rem);
}

.admin-form-full {
  grid-column: 1 / -1;
}

.admin-label {
  font-size: var(--text-sm, 0.875rem);
  font-weight: var(--weight-semibold, 600);
  color: var(--admin-text, #111827);
}

.admin-input,
.admin-select,
.admin-textarea {
  width: 100%;
  min-height: 42px;

  padding: 0.75rem 0.875rem;

  border: 1px solid var(--admin-border, #e5e7eb);
  border-radius: var(--radius-sm, 0.5rem);

  font-size: var(--text-sm, 0.875rem);
  color: var(--admin-text, #111827);
  background: var(--admin-surface, #ffffff);
}

.admin-input:focus,
.admin-select:focus,
.admin-textarea:focus {
  outline: none;
  border-color: var(--admin-primary, #2563eb);
  box-shadow: 0 0 0 4px
    color-mix(in srgb, var(--admin-primary, #2563eb) 12%, transparent);
}

.admin-textarea {
  min-height: 130px;
  resize: vertical;
}

.admin-help {
  margin: 0;
  font-size: var(--text-xs, 0.75rem);
  color: var(--admin-muted, #6b7280);
}

.admin-form-actions {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: var(--space-3, 0.75rem);
  margin-top: var(--space-5, 1.5rem);
  padding-top: var(--space-4, 1rem);
  border-top: 1px solid var(--admin-border, #e5e7eb);
}

/* =========================================================
   11. Filter Form / Search Bar
========================================================= */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3, 0.75rem);
  align-items: center;

  padding: var(--space-4, 1rem);
  margin-bottom: var(--space-5, 1.5rem);

  background: var(--color-surface, #ffffff);
  border: 1px solid var(--color-border, #e4e7ec);
  border-radius: var(--radius-xl, 1.5rem);
  box-shadow: var(--shadow-xs, 0 1px 2px rgba(16, 24, 40, 0.05));
}

.filter-input {
  flex: 1 1 240px;
  min-width: 0;
}

.filter-select {
  flex: 0 1 180px;
}

/* =========================================================
   12. File Upload
========================================================= */

.file-upload-box {
  display: grid;
  gap: var(--space-3, 0.75rem);

  padding: var(--space-5, 1.5rem);

  text-align: center;

  background: var(--color-surface-soft, #f9fafb);
  border: 1px dashed var(--color-border-strong, #d0d5dd);
  border-radius: var(--radius-xl, 1.5rem);
}

.file-upload-title {
  margin: 0;
  font-size: var(--text-base, 1rem);
  font-weight: var(--weight-bold, 700);
  color: var(--color-text, #1f2933);
}

.file-upload-text {
  margin: 0;
  font-size: var(--text-sm, 0.875rem);
  color: var(--color-text-muted, #667085);
}

.image-preview {
  overflow: hidden;
  max-width: 260px;
  border-radius: var(--radius-lg, 1rem);
  border: 1px solid var(--color-border, #e4e7ec);
  background: var(--color-surface, #ffffff);
}

.image-preview img {
  width: 100%;
  height: auto;
  display: block;
}

/* =========================================================
   13. Success Message
========================================================= */

.form-success-card {
  padding: var(--space-6, 2rem);
  text-align: center;
  background: var(--color-success-light, #e7f6ed);
  border: 1px solid
    color-mix(in srgb, var(--color-success, #2f7d4f) 20%, transparent);
  border-radius: var(--radius-2xl, 2rem);
}

.form-success-icon {
  width: 3rem;
  height: 3rem;

  display: inline-flex;
  align-items: center;
  justify-content: center;

  margin-bottom: var(--space-4, 1rem);

  color: #ffffff;
  background: var(--color-success, #2f7d4f);
  border-radius: var(--radius-full, 999px);
}

.form-success-title {
  margin: 0;
  font-size: var(--text-xl, 1.5rem);
  font-weight: var(--weight-bold, 700);
  color: var(--color-text, #1f2933);
}

.form-success-text {
  margin-top: var(--space-2, 0.5rem);
  margin-bottom: 0;
  color: var(--color-text-muted, #667085);
}

/* =========================================================
   14. Responsive
========================================================= */

@media (max-width: 1024px) {
  .form-section-grid {
    grid-template-columns: 1fr;
  }

  .form-section-info {
    position: static;
  }
}

@media (max-width: 768px) {
  .form-grid,
  .form-grid-3,
  .admin-form-grid {
    grid-template-columns: 1fr;
  }

  .public-form-card,
  .admin-form-card {
    padding: var(--space-4, 1rem);
    border-radius: var(--radius-xl, 1.5rem);
  }

  .admin-form-header,
  .admin-form-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .form-actions-custom,
  .admin-form-actions {
    width: 100%;
  }

  .form-actions-custom .btn-custom,
  .admin-form-actions .btn-custom,
  .admin-form-actions .admin-btn {
    width: 100%;
  }

  .filter-bar {
    align-items: stretch;
    flex-direction: column;
  }

  .filter-input,
  .filter-select {
    flex: 1 1 auto;
    width: 100%;
  }
}

/* =========================================================
   15. Reduced Motion
========================================================= */

@media (prefers-reduced-motion: reduce) {
  .form-control-custom,
  .form-select-custom,
  .form-textarea-custom,
  .admin-input,
  .admin-select,
  .admin-textarea {
    transition: none !important;
  }
}