/* ── Dialog primitive ───────────────────────────────────────────── */

.ui-dialog-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  z-index: var(--z-dialog);
  animation: ui-dialog-fade var(--dur-base) var(--ease-out);
}

@keyframes ui-dialog-fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes ui-dialog-pop {
  from { opacity: 0; transform: translate(-50%, -50%) translateY(8px) scale(0.98); }
  to   { opacity: 1; transform: translate(-50%, -50%) translateY(0)   scale(1);    }
}

.ui-dialog {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: calc(var(--z-dialog) + 1);
  background: linear-gradient(160deg, rgba(47, 41, 39, 0.95) 0%, rgba(32, 28, 27, 0.95) 100%);
  backdrop-filter: var(--glass-blur-md);
  -webkit-backdrop-filter: var(--glass-blur-md);
  border: 1px solid var(--color-border-warm);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-height: calc(100vh - var(--space-7) * 2);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  width: 100%;
  animation: ui-dialog-pop var(--dur-base) var(--ease-spring);
}

/* sizes */
.ui-dialog--sm { max-width: 380px; }
.ui-dialog--md { max-width: 560px; }
.ui-dialog--lg { max-width: 780px; }
.ui-dialog--xl { max-width: 1080px; }

.ui-dialog__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-border);
  gap: var(--space-4);
  flex-shrink: 0;
}
.ui-dialog__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  letter-spacing: -0.01em;
  color: var(--color-fg);
}

.ui-dialog__body {
  padding: var(--space-6);
  overflow-y: auto;
  min-height: 0;
}

.ui-dialog__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}