/* aRTCo Tax — shared accessible dialog primitive.
 *
 * Markup:
 *   <dialog class="art-dialog" aria-labelledby="...">
 *     <div class="art-dialog__surface">...</div>
 *   </dialog>
 *
 * Behavior (focus containment, Escape/backdrop dismissal, focus restoration)
 * is provided by /assets/js/dialog.js. Host pages keep their own forms and
 * submit logic; this file only owns the common surface and action treatment.
 */

.art-dialog {
  position: fixed;
  inset: 0;
  width: min(460px, calc(100vw - (2 * var(--space-6, 24px))));
  max-width: none;
  max-height: calc(100dvh - (2 * var(--space-6, 24px)));
  margin: auto;
  padding: 0;
  border: 0;
  border-radius: var(--radius-xl, 16px);
  overflow: visible;
  background: transparent;
  color: var(--color-text-primary, #1D1D1F);
  box-shadow: var(--elevation-4, 0 16px 48px rgba(0, 0, 0, 0.16));
}

.art-dialog--compact { width: min(380px, calc(100vw - (2 * var(--space-6, 24px)))); }

.art-dialog::backdrop {
  background: var(--color-surface-overlay, rgba(29, 29, 31, 0.45));
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.art-dialog[open] {
  animation: art-dialog-enter var(--dur-med, 360ms) var(--ease-standard, cubic-bezier(0.32, 0.72, 0, 1)) both;
}

.art-dialog__surface {
  width: 100%;
  max-height: calc(100dvh - (2 * var(--space-6, 24px)));
  overflow-y: auto;
  padding: var(--space-8, 32px);
  border-radius: inherit;
  background: var(--color-bg-primary, #FFF);
  overscroll-behavior: contain;
}

.art-dialog__title {
  margin: 0 0 var(--space-2, 8px);
  font: 600 var(--text-title-1, 28px)/1.15 var(--font-sans, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif);
  letter-spacing: var(--tracking-tighter, -0.02em);
}

.art-dialog__lead {
  margin: 0 0 var(--space-5, 20px);
  color: var(--color-text-secondary, #6E6E73);
  font-size: var(--text-footnote, 13px);
  line-height: var(--leading-relaxed, 1.6);
}

.art-dialog label {
  display: block;
  margin-bottom: var(--space-2, 8px);
  color: var(--color-text-primary, #1D1D1F);
  font-size: var(--text-caption-1, 12px);
  font-weight: 600;
  letter-spacing: var(--tracking-normal, 0);
}

.art-dialog input,
.art-dialog textarea { margin-bottom: var(--space-3, 12px); }

.art-dialog__text-button {
  appearance: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  color: var(--color-primary, #CB333B);
  font: inherit;
  font-size: var(--text-footnote, 13px);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.art-dialog__text-button:focus-visible {
  outline: 2px solid var(--state-focus-ring, #CB333B);
  outline-offset: 3px;
  border-radius: var(--radius-sm, 4px);
}

.art-dialog__actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: var(--space-2, 8px);
  margin-top: var(--space-4, 16px);
}

.art-dialog__actions .btn { min-width: 96px; }

.art-dialog__error {
  min-height: 18px;
  margin-top: var(--space-1, 4px);
  color: var(--color-primary-hover, #AC2B32);
  font-size: var(--text-footnote, 13px);
  line-height: var(--leading-normal, 1.4);
}

.art-dialog__success { padding: var(--space-3, 12px) 0; text-align: center; }

.art-dialog__success .check {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-4, 16px);
  border-radius: var(--radius-full, 9999px);
  background: rgba(52, 199, 89, 0.12);
  color: var(--color-success, #34C759);
  font-size: 28px;
}

body.art-dialog-open { overflow: hidden; }

@keyframes art-dialog-enter {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@media (max-width: 600px) {
  .art-dialog,
  .art-dialog--compact {
    width: min(calc(100% - (2 * var(--space-4, 16px))), 460px);
    max-height: calc(100dvh - (2 * var(--space-4, 16px)));
  }

  .art-dialog__surface {
    max-height: calc(100dvh - (2 * var(--space-4, 16px)));
    padding: var(--space-6, 24px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .art-dialog[open] { animation: fade-in var(--dur-med, 150ms) ease both; }
}