/* Chrome for archived mail frames (see web/src/lib/content/frame-document.ts).
 *
 * Served as a same-origin static asset because the daemon's shell CSP
 * (style-src 'self') is inherited by sandboxed srcdoc frames and blocks every
 * inline style. Rendering mode and scheme arrive as html[data-mode] /
 * html[data-scheme] attributes:
 *   - canvas: designed mail on its own white, light canvas in both themes
 *   - themed: simple mail rendered transparently with shell inks
 * Themed ink values mirror web/src/styles/theme-light.css / theme-dark.css.
 */

html {
  --mail-text: #20242a;
  --mail-muted: #59626e;
  --mail-link: #1a5fce;
  --mail-border: #d8dade;

  color-scheme: light;
}

html[data-mode='themed'][data-scheme='light'] {
  --mail-text: #191b1f;
  --mail-muted: #555a62;
  --mail-link: #2257d6;
  --mail-border: #d8dade;
}

html[data-mode='themed'][data-scheme='dark'] {
  --mail-text: #f2f3f5;
  --mail-muted: #a4a8af;
  --mail-link: #74acfe;
  --mail-border: #3a3d42;

  color-scheme: dark;
}

body {
  margin: 0;
  overflow-wrap: break-word;
}

html[data-mode='canvas'] body {
  max-width: 680px;
  margin: 0 auto;
  padding: 20px 24px;
  background: #ffffff;
}

html[data-mode='themed'] body {
  /* Simple mail keeps a readable measure on wide panes; left-aligned so it
   * reads as part of the thread rather than a centered artifact. */
  max-width: 680px;
  padding: 2px 0;
  background: transparent;
}

/* Reading typography as low-specificity defaults: author styles in designed
 * mail always win over :where() rules. */
:where(body) {
  color: var(--mail-text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial,
    sans-serif;
  font-size: 14px;
  line-height: 1.55;
}

:where(body > :first-child) {
  margin-top: 0;
}

:where(body > :last-child) {
  margin-bottom: 0;
}

:where(a) {
  color: var(--mail-link);
}

:where(pre) {
  white-space: pre-wrap;
}

:where(hr) {
  border: 0;
  border-top: 1px solid var(--mail-border);
}

:where(table) {
  max-width: 100%;
}

img {
  max-width: 100%;
  height: auto;
}

/* Quotes: muted ink behind a left hairline; long chains fold behind the
 * details/summary toggle emitted by sanitize.ts. */
:where(blockquote, [data-archived-quote]) {
  margin: 8px 0;
  padding: 0 0 0 12px;
  border-left: 2px solid var(--mail-border);
  color: var(--mail-muted);
}

details[data-archived-quote-toggle] {
  margin: 10px 0;
}

details[data-archived-quote-toggle] > summary {
  display: inline-block;
  padding: 2px 10px;
  border: 1px solid var(--mail-border);
  border-radius: 10px;
  color: var(--mail-muted);
  cursor: pointer;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial,
    sans-serif;
  font-size: 12px;
  line-height: 1.4;
  list-style: none;
  user-select: none;
}

details[data-archived-quote-toggle] > summary::-webkit-details-marker {
  display: none;
}

details[data-archived-quote-toggle] > summary:hover {
  color: var(--mail-text);
}

details[data-archived-quote-toggle]:not([open]) > summary [data-archived-quote-hide] {
  display: none;
}

details[data-archived-quote-toggle][open] > summary [data-archived-quote-show] {
  display: none;
}

/* Blocked remote images and unavailable inline images render as compact
 * captioned blocks instead of raw alt text flowing as body copy. */
[data-archived-image-placeholder] {
  display: inline-flex;
  max-width: 100%;
  max-height: 80px;
  box-sizing: border-box;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border: 1px solid var(--mail-border);
  border-radius: 6px;
  color: var(--mail-muted);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial,
    sans-serif;
  font-size: 12px;
  line-height: 1.4;
  vertical-align: middle;
}

[data-archived-image-placeholder] [data-archived-image-caption] {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

[data-archived-image-glyph] {
  flex: none;
  width: 14px;
  height: 14px;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='3' width='18' height='18' rx='2'/%3E%3Ccircle cx='8.5' cy='8.5' r='1.5'/%3E%3Cpath d='m21 15-5-5L5 21'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='3' width='18' height='18' rx='2'/%3E%3Ccircle cx='8.5' cy='8.5' r='1.5'/%3E%3Cpath d='m21 15-5-5L5 21'/%3E%3C/svg%3E") center / contain no-repeat;
}