/* 共通お知らせUI。既存ページのテーマ変数を優先し、下部固定操作の高さは変更しない。 */
:root {
  --ann-bg: var(--fdc-bg, var(--dashboard-bg, #101827));
  --ann-panel: var(--fdc-panel, var(--dashboard-panel, #182337));
  --ann-text: var(--fdc-text, var(--dashboard-text, #edf3ff));
  --ann-muted: var(--fdc-muted, var(--dashboard-muted, #aab8cf));
  --ann-border: var(--fdc-border, var(--dashboard-border, rgba(177, 198, 230, 0.28)));
  --ann-accent: var(--fdc-accent, #73a7ff);
  --ann-warning: #ffc96b;
}

:root[data-theme="light"],
body[data-theme="light"],
body.theme-light {
  --ann-bg: var(--fdc-bg, var(--dashboard-bg, #f6f8fc));
  --ann-panel: var(--fdc-panel, var(--dashboard-panel, #ffffff));
  --ann-text: var(--fdc-text, var(--dashboard-text, #1b2638));
  --ann-muted: var(--fdc-muted, var(--dashboard-muted, #53647f));
  --ann-border: var(--fdc-border, var(--dashboard-border, rgba(55, 78, 111, 0.25)));
  --ann-accent: var(--fdc-accent, #235fc4);
  --ann-warning: #915e00;
}

:root[data-theme="dark"],
body[data-theme="dark"],
body.theme-dark {
  --ann-bg: var(--fdc-bg, var(--dashboard-bg, #101827));
  --ann-panel: var(--fdc-panel, var(--dashboard-panel, #182337));
  --ann-text: var(--fdc-text, var(--dashboard-text, #edf3ff));
  --ann-muted: var(--fdc-muted, var(--dashboard-muted, #aab8cf));
  --ann-border: var(--fdc-border, var(--dashboard-border, rgba(177, 198, 230, 0.28)));
  --ann-accent: var(--fdc-accent, #73a7ff);
  --ann-warning: #ffc96b;
}

.trickcal-announcements-follow-bar:focus-visible,
.trickcal-announcements-dialog button:focus-visible,
.trickcal-announcements-dialog a:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--ann-accent) 72%, white);
  outline-offset: 2px;
}

.trickcal-announcements-follow-bar {
  box-sizing: border-box;
  position: fixed;
  top: var(--trickcal-topbar-height, 3.25rem);
  left: 0;
  right: 0;
  z-index: 1109;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  gap: 0.48rem;
  align-items: center;
  width: 100%;
  min-height: 2.35rem;
  margin: 0;
  border: 0;
  border-top: 1px solid var(--ann-border);
  border-bottom: 1px solid var(--ann-border);
  border-inline-start: 0.28rem solid var(--ann-accent);
  padding: 0.34rem clamp(0.72rem, 3vw, 1.4rem);
  background: var(--ann-panel);
  color: var(--ann-text);
  font: inherit;
  font-weight: 800;
  line-height: 1.25;
  text-align: left;
  cursor: pointer;
}

.trickcal-announcements-follow-bar:hover {
  background: color-mix(in srgb, var(--ann-accent) 10%, var(--ann-panel));
}

.trickcal-announcements-follow-label {
  color: var(--ann-accent);
  font-weight: 950;
  white-space: nowrap;
}

.trickcal-announcements-follow-title {
  min-width: 0;
  color: var(--ann-text);
  overflow-wrap: anywhere;
  white-space: normal;
}

.trickcal-announcements-follow-unread {
  width: 0.46rem;
  height: 0.46rem;
  border-radius: 50%;
  background: #f25d68;
  box-shadow: 0 0 0 2px var(--ann-panel, #182337);
  font-size: 0;
}

.trickcal-announcements-follow-unread[hidden] {
  display: none;
}

.trickcal-announcements-follow-arrow {
  color: var(--ann-accent);
  font-size: 1.3rem;
  font-weight: 950;
  line-height: 1;
}

.trickcal-announcement-guide-link,
.trickcal-announcement-guide-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.25rem;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--ann-border);
  border-radius: 0.45rem;
  background: transparent;
  color: var(--ann-accent);
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.trickcal-announcement-guide-link:hover,
.trickcal-announcement-guide-button:hover {
  background: color-mix(in srgb, var(--ann-accent) 12%, transparent);
}

.trickcal-announcement-backup-status {
  margin: 0.75rem 0 0;
  color: var(--ann-muted);
  line-height: 1.55;
}

.trickcal-announcement-backup-status.is-error {
  color: var(--ann-warning);
}

.trickcal-announcement-backup-recovery {
  display: inline-flex;
  margin-top: 0.45rem;
  color: var(--ann-accent);
  font-weight: 750;
  text-decoration: underline;
  text-underline-offset: 0.14em;
}

.trickcal-announcements-dialog {
  box-sizing: border-box;
  position: fixed;
  inset: 0;
  margin: auto;
  width: min(640px, calc(100vw - 20px));
  max-width: calc(100vw - 20px);
  max-height: calc(100vh - 24px);
  max-height: calc(100dvh - 24px);
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--ann-border);
  border-radius: 0.9rem;
  background: var(--ann-bg);
  color: var(--ann-text);
  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.35);
}

.trickcal-announcements-dialog[open] {
  display: flex;
  flex-direction: column;
}

.trickcal-announcements-dialog::backdrop {
  background: rgba(2, 7, 18, 0.62);
}

.trickcal-announcements-dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--ann-border);
  background: var(--ann-panel);
}

.trickcal-announcements-dialog-header h2 {
  margin: 0;
  font-size: 1.1rem;
}

.trickcal-announcements-close,
.trickcal-announcements-back {
  min-height: 2.25rem;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--ann-border);
  border-radius: 0.45rem;
  background: transparent;
  color: var(--ann-text);
  font: inherit;
  cursor: pointer;
}

.trickcal-announcements-dialog-body {
  box-sizing: border-box;
  flex: 1 1 auto;
  min-height: 0;
  padding: 1rem;
  overflow: auto;
  overscroll-behavior: contain;
}

.trickcal-announcements-dialog-body[data-announcement-view="list"] {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  overflow: hidden;
}

.trickcal-announcements-intro,
.trickcal-announcement-paragraph,
.trickcal-announcement-guide-lead,
.trickcal-announcement-guide-warning,
.trickcal-announcement-guide-details p {
  color: var(--ann-muted);
  line-height: 1.65;
}

.trickcal-announcements-list {
  display: grid;
  gap: 0.6rem;
}

.trickcal-announcement-card {
  border: 1px solid var(--ann-border);
  border-radius: 0.65rem;
  background: var(--ann-panel);
}

.trickcal-announcement-card-button {
  display: grid;
  width: 100%;
  gap: 0.25rem;
  padding: 0.8rem;
  border: 0;
  border-radius: inherit;
  background: transparent;
  color: inherit;
  text-align: left;
  font: inherit;
  cursor: pointer;
}

.trickcal-announcement-card-button:hover {
  background: color-mix(in srgb, var(--ann-accent) 8%, transparent);
}

.trickcal-announcement-important {
  flex: 0 0 auto;
  margin: 0;
  padding: 0.75rem;
  border: 1px solid color-mix(in srgb, var(--ann-warning) 42%, var(--ann-border));
  border-left: 4px solid var(--ann-warning);
  border-radius: 0.65rem;
  background: color-mix(in srgb, var(--ann-warning) 7%, var(--ann-panel));
}

.trickcal-announcement-history-scroll {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

.trickcal-announcement-section-title {
  margin: 0 0 0.45rem;
  color: var(--ann-text);
  font-size: 0.96rem;
  line-height: 1.35;
}

.trickcal-announcement-important-card {
  display: grid;
  justify-items: start;
  gap: 0.35rem;
}

.trickcal-announcement-important-card > p {
  margin: 0;
}

.trickcal-announcement-open-migration,
.trickcal-announcement-history-more {
  min-height: 2.55rem;
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--ann-border);
  border-radius: 0.5rem;
  background: color-mix(in srgb, var(--ann-accent) 12%, var(--ann-panel));
  color: var(--ann-text);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.trickcal-announcement-history-section {
  margin: 0 0 1rem;
}

.trickcal-announcement-history-list {
  display: grid;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.trickcal-announcement-history-entry {
  border: 1px solid var(--ann-border);
  border-radius: 0.6rem;
  background: var(--ann-panel);
  color: var(--ann-text);
}

.trickcal-announcement-history-summary {
  display: grid;
  gap: 0.18rem;
  min-height: 2.75rem;
  padding: 0.55rem 0.7rem;
  cursor: pointer;
}

.trickcal-announcement-history-summary:focus-visible {
  outline: 2px solid var(--ann-accent);
  outline-offset: 2px;
}

.trickcal-announcement-history-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem 0.5rem;
  color: var(--ann-muted);
  font-size: 0.78rem;
}

.trickcal-announcement-history-title {
  overflow-wrap: anywhere;
  line-height: 1.45;
}

.trickcal-announcement-history-paragraph {
  margin: 0.3rem 0.65rem 0.6rem;
  color: var(--ann-muted);
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.trickcal-announcement-history-notes {
  margin: 0.5rem 0.65rem 0.65rem;
  padding: 0.5rem 0.65rem;
  border-left: 3px solid var(--ann-warning);
  background: color-mix(in srgb, var(--ann-warning) 7%, transparent);
  color: var(--ann-muted);
}

.trickcal-announcement-history-notes h4 {
  margin: 0 0 0.25rem;
  color: var(--ann-text);
  font-size: 0.82rem;
}

.trickcal-announcement-history-notes ul {
  margin: 0;
  padding-inline-start: 1.2rem;
  line-height: 1.5;
}

.trickcal-announcement-history-more {
  margin-top: 0.45rem;
}

.trickcal-announcement-history-more[hidden] {
  display: none;
}

.trickcal-announcement-history-empty,
.trickcal-announcement-history-unavailable {
  margin: 0.25rem 0 0.85rem;
  color: var(--ann-muted);
  line-height: 1.5;
}

.trickcal-announcement-history-live {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.trickcal-announcement-meta {
  color: var(--ann-muted);
  font-size: 0.78rem;
}

.trickcal-announcement-site-link,
.trickcal-announcement-site-link:visited {
  color: var(--ann-accent);
  font-weight: 850;
  text-decoration: underline;
  text-decoration-thickness: 0.1em;
  text-underline-offset: 0.14em;
}

.trickcal-announcement-title,
.trickcal-announcement-article-title,
.trickcal-announcement-guide-title {
  margin: 0;
  color: var(--ann-text);
}

.trickcal-announcement-summary {
  color: var(--ann-muted);
  line-height: 1.5;
}

.trickcal-announcement-unread {
  width: fit-content;
  margin-top: 0.15rem;
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
  background: color-mix(in srgb, #f25d68 18%, transparent);
  color: #e94b59;
  font-size: 0.74rem;
  font-weight: 700;
}

.trickcal-announcement-guide-button {
  margin-top: 0.75rem;
  background: color-mix(in srgb, var(--ann-accent) 12%, transparent);
}

.trickcal-announcement-guide-steps {
  display: grid;
  gap: 0.65rem;
  padding-left: 1.4rem;
  line-height: 1.55;
}

.trickcal-announcement-guide-warning {
  padding: 0.65rem 0.75rem;
  border-left: 3px solid var(--ann-warning);
  background: color-mix(in srgb, var(--ann-warning) 8%, transparent);
}

.trickcal-announcement-guide-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 1rem 0;
}

.trickcal-announcement-guide-details {
  color: var(--ann-muted);
}

.trickcal-announcement-guide-details summary {
  cursor: pointer;
  color: var(--ann-text);
  font-weight: 700;
}

.trickcal-announcement-dismiss-actions {
  display: grid;
  gap: 0.35rem;
  margin-top: 1rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--ann-border);
}

.trickcal-announcement-dismiss,
.trickcal-announcement-restore {
  width: fit-content;
  min-height: 2.25rem;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--ann-border);
  border-radius: 0.45rem;
  background: transparent;
  color: var(--ann-text);
  font: inherit;
  cursor: pointer;
}

.trickcal-announcement-dismiss:hover,
.trickcal-announcement-restore:hover {
  background: color-mix(in srgb, var(--ann-accent) 10%, transparent);
}

.trickcal-announcement-dismiss-help,
.trickcal-announcement-display-status,
.trickcal-announcement-display-error,
.trickcal-announcement-dismissed-note {
  margin: 0;
  color: var(--ann-muted);
  font-size: 0.86rem;
  line-height: 1.55;
}

.trickcal-announcement-display-settings {
  width: min(100% - 2rem, 960px);
  margin: 0.8rem auto 1.2rem;
  color: var(--ann-muted);
}

.trickcal-announcement-display-settings-summary {
  width: fit-content;
  cursor: pointer;
  color: var(--ann-text);
  font-size: 0.86rem;
  font-weight: 700;
}

.trickcal-announcement-display-settings-content {
  display: grid;
  gap: 0.45rem;
  margin-top: 0.55rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--ann-border);
  border-radius: 0.55rem;
  background: color-mix(in srgb, var(--ann-panel) 88%, transparent);
}

.trickcal-announcement-display-error {
  color: var(--ann-warning);
}

.trickcal-announcement-display-settings[hidden],
.trickcal-announcement-display-error[hidden],
.trickcal-announcement-restore[hidden] {
  display: none;
}

.trickcal-announcement-storage-unavailable {
  margin: 0.6rem 1rem;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--ann-border);
  border-radius: 0.45rem;
  color: var(--ann-muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

@media (max-width: 600px) {
  .trickcal-announcements-follow-bar {
    gap: 0.32rem;
    padding-inline: 0.55rem;
    font-size: 0.84rem;
  }

  .trickcal-announcements-dialog-body {
    padding: 0.85rem;
  }

  .trickcal-announcement-guide-actions > * {
    flex: 1 1 12rem;
  }
}

@media (max-height: 600px) {
  .trickcal-announcements-dialog-body[data-announcement-view="list"] {
    display: block;
    overflow: auto;
  }

  .trickcal-announcement-history-scroll {
    overflow: visible;
    min-height: auto;
  }
}