/**
 * A5.7 — Modal (plain CSS, --canvas-* tokens).
 * Native <dialog>; sizes sm/md/lg; reduced-motion via a11y.css.
 */

.canvas-modal {
  box-sizing: border-box;
  margin: auto;
  padding: 0;
  border: 1px solid var(--canvas-border-default);
  border-radius: var(--canvas-radius-xl);
  background: var(--canvas-surface-raised, var(--canvas-surface-background));
  color: var(--canvas-text-primary);
  box-shadow: var(--canvas-shadow-l, 0 16px 48px oklch(0 0 0 / 0.2));
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.canvas-modal::backdrop {
  background: var(--canvas-surface-overlay);
}

.canvas-modal--sm {
  width: min(400px, 90vw);
}

.canvas-modal--md {
  width: min(560px, 90vw);
}

.canvas-modal--lg {
  width: min(720px, 90vw);
}

.canvas-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--canvas-space-m);
  padding: var(--canvas-space-m);
  border-bottom: 1px solid var(--canvas-border-default);
}

.canvas-modal__title {
  margin: 0;
  font: inherit;
  font-weight: 600;
  color: var(--canvas-text-primary);
}

.canvas-modal__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: var(--canvas-touch-target-min, 44px);
  min-height: var(--canvas-touch-target-min, 44px);
  border: none;
  border-radius: var(--canvas-radius-s);
  background: transparent;
  color: var(--canvas-text-secondary);
  cursor: pointer;
  font-size: 1.25rem;
  line-height: 1;
}

.canvas-modal__close:hover {
  color: var(--canvas-text-primary);
}

.canvas-modal__body {
  padding: var(--canvas-space-m);
  overflow-y: auto;
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: var(--canvas-space-m);
}

body[data-canvas-scroll-lock="1"] {
  overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
  .canvas-modal,
  .canvas-modal::backdrop {
    transition: none;
    animation: none;
  }
}