/**
 * CSS Niveau 1 — Châssis Universel des Modales (modal-shell.css)
 * Utilisé par l'ensemble des 15 modales du Studio pour garantir l'uniformité visuelle.
 */

/* --- Isolation native du scroll sur <dialog> (modern-web-guidance) --- */
dialog:modal {
  overscroll-behavior: contain;
}

dialog::backdrop {
  overflow: hidden;
  overscroll-behavior: contain;
}

/* --- Arrière-plan Obscurcissant (Backdrop) --- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: var(--color-bg-backdrop);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: var(--z-modal-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  overflow: hidden;
  overscroll-behavior: contain;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.modal-backdrop--fullscreen {
  padding: 2vh 1vw;
}

/* --- Châssis de la Modale --- */
.modal-shell {
  position: relative;
  width: 100%;
  max-width: 640px;
  max-height: 90vh;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  overscroll-behavior: contain;
  z-index: var(--z-modal);
  transform: scale(0.96) translateY(8px);
  transition: transform var(--transition-smooth);
}

.modal-backdrop.is-open .modal-shell {
  transform: scale(1) translateY(0);
}

/* --- Variantes de Largeur --- */
.modal-shell--sm { max-width: 440px; }
.modal-shell--md { max-width: 640px; }
.modal-shell--lg { max-width: 860px; }
.modal-shell--xl { max-width: 1100px; }
.modal-shell--full { max-width: 96vw; height: 92vh; }
.modal-shell--fullscreen {
  width: 98vw;
  max-width: 98vw;
  height: 96vh;
  max-height: 96vh;
  display: flex;
  flex-direction: column;
}

/* --- En-tête de la Modale --- */
.modal-shell__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
  background: rgba(15, 23, 42, 0.6);
}

.modal-shell__title {
  margin: 0;
  font-family: var(--font-family-display);
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.modal-shell__close {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  font-size: var(--font-size-lg);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-shell__close:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text-primary);
}

/* --- Corps Défilable de la Modale --- */
.modal-shell__body {
  flex: 1;
  padding: var(--space-5);
  overflow-y: auto;
  overscroll-behavior: contain;
  color: var(--color-text-secondary);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  line-height: 1.5;
}

/* --- Pied de la Modale (Actions) --- */
.modal-shell__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border);
  background: rgba(15, 23, 42, 0.6);
}

/* --- Mini-Dialogue de Confirmation Accessible (0 window.confirm) --- */
.confirm-dialog-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(3, 6, 14, 0.78);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 1500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  overflow: hidden;
  overscroll-behavior: contain;
  animation: studio-toast-in 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

.confirm-dialog {
  width: 100%;
  max-width: 440px;
  background: linear-gradient(155deg, rgba(18, 27, 48, 0.98) 0%, rgba(10, 15, 28, 0.99) 100%);
  border: 1px solid rgba(99, 102, 241, 0.35);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg), 0 0 36px rgba(0, 0, 0, 0.72);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  overscroll-behavior: contain;
}

.confirm-dialog--danger {
  border-color: rgba(239, 68, 68, 0.45);
  box-shadow: var(--shadow-lg), 0 0 32px rgba(239, 68, 68, 0.18);
}

.confirm-dialog__header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.confirm-dialog__icon {
  font-size: 1.2rem;
  line-height: 1;
}

.confirm-dialog__title {
  margin: 0;
  font-family: var(--font-family-display);
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-text-primary);
}

.confirm-dialog__message {
  margin: 0;
  font-family: var(--font-family-sans);
  font-size: var(--font-size-sm);
  line-height: 1.55;
  color: var(--color-text-secondary);
}

.confirm-dialog__actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

/* --- Conteneur Toasts Global --- */
.studio-toast-container {
  position: fixed;
  top: var(--space-5);
  right: var(--space-5);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
}

.render-toast {
  pointer-events: auto;
  min-width: 260px;
  max-width: 420px;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: #ffffff;
  box-shadow: var(--shadow-lg);
  display: none;
  animation: studio-toast-in 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.render-toast.toast-info {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-status-info);
}

.render-toast.toast-success {
  background: #064e3b;
  border: 1px solid var(--color-status-success);
}

.render-toast.toast-warning {
  background: #78350f;
  border: 1px solid var(--color-status-warning);
}

.render-toast.toast-error {
  background: #7f1d1d;
  border: 1px solid var(--color-status-danger);
}

@keyframes studio-toast-in {
  from {
    opacity: 0;
    transform: translateY(-12px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}