/**
 * Générateur de signature de mail professionnelle
 * Préfixe CSS : .gr-signature- (isolation des styles)
 * Design minimaliste / neutre - adapté à l’intégration agence
 */

/* -------------------------------------------------------------------------- */
/* Variables (personnalisables à l’intégration)                               */
/* -------------------------------------------------------------------------- */
.gr-signature-root {
  /* Theme via CSS variables only (no dark/light toggle in the component) */
  --gr-sig-color-primary: #2563eb;
  --gr-sig-color-primary-hover: #1d4ed8;
  --gr-sig-color-primary-text: #ffffff;
  --gr-sig-color-text: #1e293b;
  --gr-sig-color-muted: #64748b;
  --gr-sig-color-border: #e2e8f0;
  --gr-sig-color-border-hover: #cbd5e1;
  --gr-sig-color-bg: #ffffff;
  --gr-sig-color-surface: #f8fafc;
  --gr-sig-color-error: #dc2626;
  --gr-sig-color-error-border: #fecaca;
  --gr-sig-color-error-bg: #fef2f2;
  --gr-sig-color-success: #16a34a;
  --gr-sig-color-warn: #b45309;
  --gr-sig-color-focus: #2563eb;
  --gr-sig-radius: 8px;
  --gr-sig-radius-sm: 4px;
  --gr-sig-space-xs: 0.25rem;
  --gr-sig-space-sm: 0.5rem;
  --gr-sig-space-md: 1rem;
  --gr-sig-space-lg: 1.5rem;
  --gr-sig-space-xl: 2rem;
  --gr-sig-font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --gr-sig-font-size: 1rem;
  --gr-sig-line-height: 1.5;
  --gr-sig-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
  --gr-sig-max-width: 1320px;
  --gr-sig-transition: 150ms ease;
  --gr-sig-form-ratio: 1.1fr;
  --gr-sig-preview-ratio: 1fr;

  box-sizing: border-box;
  color: var(--gr-sig-color-text);
  font-family: var(--gr-sig-font);
  font-size: var(--gr-sig-font-size);
  line-height: var(--gr-sig-line-height);
  max-width: var(--gr-sig-max-width);
  margin: 0 auto;
  padding: var(--gr-sig-space-md);
  width: 100%;
}

.gr-signature-root *,
.gr-signature-root *::before,
.gr-signature-root *::after {
  box-sizing: border-box;
}

/* -------------------------------------------------------------------------- */
/* Layout                                                                     */
/* -------------------------------------------------------------------------- */
.gr-signature-header {
  margin-bottom: var(--gr-sig-space-lg);
}

.gr-signature-title {
  margin: 0 0 var(--gr-sig-space-xs);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--gr-sig-color-text);
}

.gr-signature-subtitle {
  margin: 0;
  color: var(--gr-sig-color-muted);
  font-size: 0.9375rem;
}

.gr-signature-layout {
  display: grid;
  gap: var(--gr-sig-space-lg);
  grid-template-columns: 1fr;
}

/* Panneau formulaire plus large pour intitulés sur une seule ligne */
@media (min-width: 960px) {
  .gr-signature-layout {
    grid-template-columns: minmax(0, var(--gr-sig-form-ratio)) minmax(480px, var(--gr-sig-preview-ratio));
    align-items: start;
  }

  .gr-signature-preview-panel {
    position: sticky;
    top: var(--gr-sig-space-md);
  }
}

/* -------------------------------------------------------------------------- */
/* Panels                                                                     */
/* -------------------------------------------------------------------------- */
.gr-signature-panel {
  background: var(--gr-sig-color-bg);
  border: 1px solid var(--gr-sig-color-border);
  border-radius: var(--gr-sig-radius);
  box-shadow: var(--gr-sig-shadow);
  padding: var(--gr-sig-space-lg);
}

.gr-signature-panel-title {
  margin: 0 0 var(--gr-sig-space-md);
  font-size: 1.0625rem;
  font-weight: 600;
}

/* -------------------------------------------------------------------------- */
/* Form                                                                       */
/* -------------------------------------------------------------------------- */
.gr-signature-form {
  display: flex;
  flex-direction: column;
  gap: var(--gr-sig-space-md);
}

.gr-signature-fieldset {
  border: 1px solid var(--gr-sig-color-border);
  border-radius: var(--gr-sig-radius);
  margin: 0;
  padding: var(--gr-sig-space-md);
  min-width: 0;
}

.gr-signature-fieldset legend {
  padding: 0 var(--gr-sig-space-sm);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gr-sig-color-text);
}

.gr-signature-grid {
  display: grid;
  gap: var(--gr-sig-space-md);
  grid-template-columns: 1fr;
}

@media (min-width: 520px) {
  .gr-signature-grid--2 {
    grid-template-columns: 1fr 1fr;
  }
}

.gr-signature-field {
  display: flex;
  flex-direction: column;
  gap: var(--gr-sig-space-xs);
  min-width: 0;
}

.gr-signature-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gr-sig-color-text);
  line-height: 1.3;
}

/* Intitulés sur une seule ligne dès que la largeur le permet */
@media (min-width: 520px) {
  .gr-signature-label {
    white-space: nowrap;
  }
}

.gr-signature-label .gr-signature-optional {
  font-weight: 400;
  color: var(--gr-sig-color-muted);
}

.gr-signature-input,
.gr-signature-select,
.gr-signature-textarea {
  width: 100%;
  min-height: 2.5rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--gr-sig-color-border);
  border-radius: var(--gr-sig-radius-sm);
  background: var(--gr-sig-color-bg);
  color: var(--gr-sig-color-text);
  font: inherit;
  font-size: 0.9375rem;
  transition: border-color var(--gr-sig-transition), box-shadow var(--gr-sig-transition);
}

.gr-signature-textarea {
  min-height: 5rem;
  resize: vertical;
}

.gr-signature-input::placeholder,
.gr-signature-textarea::placeholder {
  color: var(--gr-sig-color-muted);
  opacity: 0.85;
}

.gr-signature-input:hover,
.gr-signature-select:hover,
.gr-signature-textarea:hover {
  border-color: var(--gr-sig-color-border-hover);
}

.gr-signature-input:focus,
.gr-signature-select:focus,
.gr-signature-textarea:focus,
.gr-signature-color:focus,
.gr-signature-file:focus-visible,
.gr-signature-btn:focus-visible {
  outline: 2px solid var(--gr-sig-color-focus);
  outline-offset: 2px;
  border-color: var(--gr-sig-color-primary);
}

.gr-signature-input[aria-invalid="true"],
.gr-signature-textarea[aria-invalid="true"],
.gr-signature-select[aria-invalid="true"] {
  border-color: var(--gr-sig-color-error);
}

.gr-signature-error {
  margin: 0;
  min-height: 1.125rem;
  font-size: 0.8125rem;
  color: var(--gr-sig-color-error);
}

/* Avertissement non bloquant (ex. domaine social incohérent) */
.gr-signature-error[data-type="warn"] {
  color: var(--gr-sig-color-warn);
}

.gr-signature-hint {
  margin: 0;
  font-size: 0.75rem;
  color: var(--gr-sig-color-muted);
}

/* Color input */
.gr-signature-color-row {
  display: flex;
  align-items: center;
  gap: var(--gr-sig-space-sm);
}

.gr-signature-color {
  width: 2.75rem;
  height: 2.5rem;
  padding: 0.15rem;
  border: 1px solid var(--gr-sig-color-border);
  border-radius: var(--gr-sig-radius-sm);
  background: var(--gr-sig-color-bg);
  cursor: pointer;
  flex-shrink: 0;
}

.gr-signature-color-text {
  flex: 1;
  min-width: 0;
  font-family: ui-monospace, "Cascadia Code", "Segoe UI Mono", Menlo, Consolas, monospace;
}

/* File input */
.gr-signature-file {
  width: 100%;
  font: inherit;
  font-size: 0.875rem;
}

.gr-signature-file-preview {
  display: none;
  align-items: center;
  gap: var(--gr-sig-space-sm);
  margin-top: var(--gr-sig-space-sm);
}

.gr-signature-file-preview.is-visible {
  display: flex;
}

.gr-signature-file-thumb {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: var(--gr-sig-radius-sm);
  border: 1px solid var(--gr-sig-color-border);
  background: var(--gr-sig-color-surface);
}

/* Social networks list */
.gr-signature-social-list {
  display: flex;
  flex-direction: column;
  gap: var(--gr-sig-space-sm);
  margin: 0;
  padding: 0;
  list-style: none;
}

.gr-signature-social-item {
  display: grid;
  grid-template-columns: 7rem 1fr auto;
  gap: var(--gr-sig-space-sm);
  align-items: start;
}

@media (max-width: 519px) {
  .gr-signature-social-item {
    grid-template-columns: 1fr;
  }
}

.gr-signature-social-item .gr-signature-field {
  margin: 0;
}

.gr-signature-social-actions {
  display: flex;
  align-items: center;
  padding-top: 1.5rem;
}

@media (max-width: 519px) {
  .gr-signature-social-actions {
    padding-top: 0;
    justify-content: flex-end;
  }
}

/* Checkbox */
.gr-signature-check {
  display: flex;
  align-items: flex-start;
  gap: var(--gr-sig-space-sm);
  font-size: 0.875rem;
  cursor: pointer;
}

.gr-signature-check input {
  margin-top: 0.2rem;
  width: 1rem;
  height: 1rem;
  accent-color: var(--gr-sig-color-primary);
  flex-shrink: 0;
}

/* -------------------------------------------------------------------------- */
/* Buttons                                                                    */
/* -------------------------------------------------------------------------- */
.gr-signature-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gr-sig-space-sm);
  margin-top: var(--gr-sig-space-md);
}

.gr-signature-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--gr-sig-space-xs);
  min-height: 2.5rem;
  padding: 0.5rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--gr-sig-radius-sm);
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.25;
  cursor: pointer;
  transition: background-color var(--gr-sig-transition), border-color var(--gr-sig-transition),
    color var(--gr-sig-transition), opacity var(--gr-sig-transition);
}

.gr-signature-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.gr-signature-btn--primary {
  background: var(--gr-sig-color-primary);
  color: var(--gr-sig-color-primary-text);
}

.gr-signature-btn--primary:hover:not(:disabled) {
  background: var(--gr-sig-color-primary-hover);
}

.gr-signature-btn--secondary {
  background: var(--gr-sig-color-bg);
  color: var(--gr-sig-color-text);
  border-color: var(--gr-sig-color-border);
}

.gr-signature-btn--secondary:hover:not(:disabled) {
  background: var(--gr-sig-color-surface);
  border-color: var(--gr-sig-color-border-hover);
}

.gr-signature-btn--ghost {
  background: transparent;
  color: var(--gr-sig-color-muted);
  border-color: transparent;
}

.gr-signature-btn--ghost:hover:not(:disabled) {
  color: var(--gr-sig-color-text);
  background: var(--gr-sig-color-surface);
}

.gr-signature-btn--danger {
  background: var(--gr-sig-color-bg);
  color: var(--gr-sig-color-error);
  border-color: var(--gr-sig-color-error-border);
}

.gr-signature-btn--danger:hover:not(:disabled) {
  background: var(--gr-sig-color-error-bg);
}

.gr-signature-btn--sm {
  min-height: 2rem;
  padding: 0.25rem 0.5rem;
  font-size: 0.8125rem;
  font-weight: 500;
}

/* -------------------------------------------------------------------------- */
/* Preview                                                                    */
/* -------------------------------------------------------------------------- */
.gr-signature-preview-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--gr-sig-space-sm);
  margin-bottom: var(--gr-sig-space-md);
}

.gr-signature-preview-frame {
  background: var(--gr-sig-color-surface);
  border: 1px dashed var(--gr-sig-color-border);
  border-radius: var(--gr-sig-radius);
  padding: var(--gr-sig-space-lg);
  min-height: 180px;
  overflow-x: auto;
}

.gr-signature-preview-frame table {
  width: auto;
  max-width: none;
}

.gr-signature-preview-frame img {
  max-width: none;
  height: auto;
}

.gr-signature-preview-label {
  margin: 0 0 var(--gr-sig-space-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--gr-sig-color-muted);
}

.gr-signature-status {
  margin: var(--gr-sig-space-sm) 0 0;
  min-height: 1.25rem;
  font-size: 0.875rem;
}

.gr-signature-status[data-type="success"] {
  color: var(--gr-sig-color-success);
}

.gr-signature-status[data-type="error"] {
  color: var(--gr-sig-color-error);
}

.gr-signature-status[data-type="info"] {
  color: var(--gr-sig-color-muted);
}

/* Avertissement soft (action OK malgré erreurs restantes) */
.gr-signature-status[data-type="warn"] {
  color: var(--gr-sig-color-warn);
}

/* Slider taille logo */
.gr-signature-logo-size {
  margin-top: var(--gr-sig-space-md);
  padding-top: var(--gr-sig-space-sm);
  border-top: 1px solid var(--gr-sig-color-border);
}

.gr-signature-range-row {
  display: flex;
  align-items: center;
  gap: var(--gr-sig-space-md);
  margin-top: var(--gr-sig-space-xs);
}

.gr-signature-range {
  flex: 1;
  min-width: 0;
  height: 1.5rem;
  accent-color: var(--gr-sig-color-primary);
  cursor: pointer;
}

.gr-signature-range:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.gr-signature-range-value {
  flex-shrink: 0;
  min-width: 3.5rem;
  font-size: 0.875rem;
  font-variant-numeric: tabular-nums;
  color: var(--gr-sig-color-muted);
  text-align: right;
}

/* Empty state */
.gr-signature-empty {
  margin: 0;
  color: var(--gr-sig-color-muted);
  font-size: 0.9375rem;
  text-align: center;
  padding: var(--gr-sig-space-lg) var(--gr-sig-space-md);
}

/* Live region (screen readers) */
.gr-signature-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .gr-signature-root,
  .gr-signature-root * {
    transition: none !important;
  }
}