:root {
  --dialog-min-width: max(20rem, 80%);
  --dialog-width: var(--dialog-min-width);
  --dialog-max-width: 90vw;
  --dialog-max-height: 85vh;
  --dialog-margin: auto;
  --dialog-inset: 0;
  --dialog-gap: 0.625rem;
  --dialog-border-color: var(--color-border);
  --dialog-border-width: thin;
  --dialog-border-style: solid;
  --dialog-border-radius: var(--border-radius);
  --dialog-padding: 1.5rem;
  --dialog-padding-inline: 1rem;
  --dialog-close-color: var(--color-text-secondary);
  --dialog-button-bg: transparent;
  --dialog-button-border: transparent thin solid;
  --dialog-button-hover-bg: var(--color-surface-secondary);
  --dialog-display: flex;
  --dialog-flex-direction: column;

  /* Focus and accessibility */
  --dialog-focus-color: var(--color-focus);
  --dialog-focus-width: 0.125rem;
  --dialog-focus-offset: 0.125rem;
  --dialog-focus-outline: var(--dialog-focus-width) solid var(--dialog-focus-color);
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --dialog-border-color: currentColor;
    --dialog-border-width: 0.125rem;
    --dialog-close-color: currentColor;
    --dialog-button-border: currentColor 0.125rem solid;
    --dialog-focus-width: 0.1875rem;
  }
}

dialog {
  margin: var(--dialog-margin);
  inset: var(--dialog-inset);
  width: var(--dialog-width);
  max-width: var(--dialog-max-width);
  max-height: var(--dialog-max-height);
  gap: var(--dialog-gap);
  border: var(--dialog-border-color) var(--dialog-border-width) solid;
  border-radius: var(--dialog-border-radius);
  padding: var(--dialog-padding);
  padding-block-start: var(--dialog-padding);

  /* Focus visible for keyboard navigation */
  &:focus-visible {
    outline: var(--dialog-focus-outline);
    outline-offset: var(--dialog-focus-offset);
  }

  &[open] {
    display: var(--dialog-display);
    flex-direction: var(--dialog-flex-direction);
    gap: var(--dialog-gap);
  }

  section {
    width: 100%;
    display: flex;
    justify-content: start;
    gap: var(--dialog-gap);
    flex-direction: var(--dialog-flex-direction);
    margin-block-start: 0;
    --sect-y: 0;
  }
}

.dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  min-width: 100%;

  h3 {
    margin-block-start: 0;
    margin-block-end: 0;
  }

  .dialog-close {
    margin-block-end: 0;
  }

  button[type="button"] {
    background-color: var(--dialog-button-bg);
    border: var(--dialog-button-border);
    color: var(--dialog-close-color);
    cursor: pointer;

    &:hover {
      border-color: var(--dialog-close-color);
      background-color: var(--dialog-button-hover-bg);
    }

    /* Keyboard focus indicator */
    &:focus-visible {
      outline: var(--dialog-focus-outline);
      outline-offset: var(--dialog-focus-offset);
      border-color: var(--dialog-focus-color);
      background-color: var(--dialog-button-hover-bg);
    }

    /* Remove default focus for mouse users */
    &:focus:not(:focus-visible) {
      outline: none;
    }
  }
}

.alert-dialog-actions,
.dialog-footer {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: var(--dialog-footer-justify, flex-end);
  gap: var(--dialog-gap);
  width: 100%;

  /* Focus styles for footer buttons */
  button:focus-visible {
    outline: var(--dialog-focus-outline);
    outline-offset: var(--dialog-focus-offset);
  }

  button:focus:not(:focus-visible) {
    outline: none;
  }
}

/* ── Size variants ─────────────────────────── */

dialog[data-size="sm"] {
  --dialog-width: 25rem;
}

dialog[data-size="md"] {
  --dialog-width: 32rem;
}

dialog[data-size="lg"] {
  --dialog-width: 48rem;
}

dialog[data-size="full"] {
  box-sizing: border-box;
  width: 100vw;
  max-width: 100vw;
  height: 100vh;
  max-height: 100vh;
  margin: 0;
  inset: 0;
  border: 0;
  border-radius: 0;
}

/* ── Position variants ─────────────────────── */

dialog[data-position="center"] {
  --dialog-margin: auto;
  --dialog-inset: 0;
}

dialog[data-position="top"] {
  --dialog-margin: 0 auto auto auto;
  --dialog-inset: 0;
}

dialog[data-position="bottom"] {
  --dialog-margin: auto auto 0 auto;
  --dialog-inset: 0;
}

dialog[data-position="left"] {
  --dialog-margin: 0 auto 0 0;
  --dialog-inset: 0;
  height: 100vh;
  max-height: 100vh;
  border-radius: 0;
}

dialog[data-position="right"] {
  --dialog-margin: 0 0 0 auto;
  --dialog-inset: 0;
  height: 100vh;
  max-height: 100vh;
  border-radius: 0;
}

dialog[data-position="top-left"] {
  --dialog-margin: 0 auto auto 0;
  --dialog-inset: 0;
}

dialog[data-position="top-right"] {
  --dialog-margin: 0 0 auto auto;
  --dialog-inset: 0;
}

dialog[data-position="bottom-left"] {
  --dialog-margin: auto auto 0 0;
  --dialog-inset: 0;
}

dialog[data-position="bottom-right"] {
  --dialog-margin: auto 0 0 auto;
  --dialog-inset: 0;
}