/* 原生 title 黑框由这层低干扰的信息薄片替代。 */

.hint-surface {
  position: fixed;
  z-index: 1900;
  width: max-content;
  max-width: min(360px, calc(100vw - 24px));
  padding: 9px 13px 10px 16px;
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--surface-1) 94%, transparent);
  box-shadow: 0 14px 42px rgba(0, 0, 0, 0.22);
  color: var(--text-1);
  font-family: var(--font-ui);
  font-size: 11px;
  font-weight: 500;
  line-height: 1.55;
  letter-spacing: 0.025em;
  opacity: 0;
  pointer-events: none;
  transform: translateY(3px);
  transition: opacity 120ms ease, transform 120ms ease;
}

.hint-surface.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.hint-surface > i {
  position: absolute;
  top: -1px;
  left: 14px;
  width: 28%;
  height: 1px;
  background: var(--accent);
}

.hint-surface[data-placement="bottom"] > i {
  top: auto;
  bottom: -1px;
}

html[data-surface="admin"] .hint-surface,
html[data-surface="member"][data-member-theme="garden"] .hint-surface {
  border-color: color-mix(in srgb, var(--admin-violet, #80629b) 35%, var(--line-strong));
  border-radius: 13px 4px 13px 7px;
  background: color-mix(in srgb, var(--surface-1) 96%, var(--admin-sheet-soft, transparent));
  box-shadow: 0 18px 55px color-mix(in srgb, var(--admin-violet, #80629b) 12%, transparent);
  font-family: var(--font-sacred);
  font-weight: 450;
}

html[data-surface="admin"] .hint-surface > i,
html[data-surface="member"][data-member-theme="garden"] .hint-surface > i {
  height: 2px;
  border-radius: 50%;
  background: linear-gradient(90deg, transparent, var(--admin-violet, #80629b), transparent);
}

@media (min-width: 2560px) {
  .hint-surface {
    max-width: 430px;
    padding: 11px 16px 12px 19px;
    font-size: 13px;
  }
}

@media (max-width: 640px) {
  .hint-surface {
    max-width: calc(100vw - 28px);
    font-size: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hint-surface { transition: none; }
}

@media (forced-colors: active) {
  .hint-surface {
    border: 1px solid CanvasText;
    background: Canvas;
    box-shadow: none;
    color: CanvasText;
  }
}