:root {
  --bg: #f3eef1;
  --surface: #fff;
  --text: #1c1218;
  --muted: #6d6168;
  --line: #eadfe5;
  --accent: #843a55;
  --accent-soft: #f4e6ec;
  --shadow: 0 8px 22px rgba(50, 20, 36, 0.07);
  --radius: 7px;
  --radius-sm: 6px;
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --kind-all: #f4f1f2;
  --kind-einzel: #f7eaea;
  --kind-auto: #e9f3ef;
  --kind-tags: #eef1f7;
  --kind-projects: #f6f0e6;
  --kind-links: #eaf3f6;
  --kind-all-border: #ddd4d7;
  --kind-einzel-border: #e2c4c8;
  --kind-auto-border: #b9d4c8;
  --kind-tags-border: #c4cbe0;
  --kind-projects-border: #dbc7a8;
  --kind-links-border: #b5d0d8;
}

[data-mandant="NELEA"] {
  --accent: #ed0282;
  --accent-soft: #fde7f3;
  --bg: #f7eef3;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
}

body:not(.login-body) {
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

button, input {
  font: inherit;
}

input::placeholder {
  font-size: 12px;
  color: var(--muted);
}

.muted { color: var(--muted); font-size: 13px; }

/* Login */
.login-body {
  min-height: 100vh;
  display: grid;
  grid-template-rows: 1fr auto;
  align-items: center;
  justify-items: center;
  background:
    radial-gradient(circle at 15% 20%, #f8d5e4 0%, transparent 40%),
    radial-gradient(circle at 85% 80%, #e8d0dc 0%, transparent 42%),
    var(--bg);
}

.login-card {
  width: min(400px, calc(100% - 32px));
  background: var(--surface);
  border-radius: 8px;
  padding: 28px 26px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 12px;
}

.login-kicker {
  margin: 0;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 11px;
  color: var(--accent);
  font-weight: 600;
}

.login-card h1 {
  margin: 0;
  font-size: 24px;
}

.login-lead {
  margin: 0 0 8px;
  color: var(--muted);
}

.login-card label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
}

.login-card input {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 9px 11px;
  background: #fbf8fa;
}

.login-card button,
.ghost,
.primary,
.mandant-switch button,
.view-switch button {
  border: 0;
  cursor: pointer;
}

.login-card button {
  margin-top: 8px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-weight: 600;
}

.login-error {
  margin: 0;
  color: #b42318;
  font-size: 13px;
}

/* App chrome */
.topbar {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 18px 16px 8px;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 5;
}

.topbar-start {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  min-width: 0;
}

.global-search {
  display: grid;
  gap: 8px;
  padding: 10px 16px 8px;
  background: rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid var(--line);
}

.global-search input[type="search"] {
  width: 100%;
  max-width: 720px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  background: #fff;
  color: var(--text);
}

.global-search .tag-prefix-filter[hidden],
.global-search .search-scope[hidden] {
  display: none;
}

.search-hit-card .subject,
.search-hit-card .preheader {
  font-size: 12px;
  color: var(--muted);
}

.search-hit-card.is-kind-einzel { background: var(--kind-einzel); }
.search-hit-card.is-kind-auto { background: var(--kind-auto); }
.search-hit-card.is-kind-tags { background: var(--kind-tags); }
.search-hit-card.is-kind-projects { background: var(--kind-projects); }
.search-hit-card.is-kind-links { background: var(--kind-links); }

.search-hit-card.is-kind-einzel:hover,
.search-hit-card.is-kind-einzel.active {
  background: color-mix(in srgb, var(--kind-einzel) 70%, #fff);
  border-color: var(--kind-einzel-border);
}

.search-hit-card.is-kind-auto:hover,
.search-hit-card.is-kind-auto.active {
  background: color-mix(in srgb, var(--kind-auto) 70%, #fff);
  border-color: var(--kind-auto-border);
}

.search-hit-card.is-kind-tags:hover,
.search-hit-card.is-kind-tags.active {
  background: color-mix(in srgb, var(--kind-tags) 70%, #fff);
  border-color: var(--kind-tags-border);
}

.search-hit-card.is-kind-projects:hover,
.search-hit-card.is-kind-projects.active {
  background: color-mix(in srgb, var(--kind-projects) 70%, #fff);
  border-color: var(--kind-projects-border);
}

.search-hit-card.is-kind-links:hover,
.search-hit-card.is-kind-links.active {
  background: color-mix(in srgb, var(--kind-links) 70%, #fff);
  border-color: var(--kind-links-border);
}

#searchKindFilter button.is-kind-all,
#searchKindFilter button.is-kind-all.active { background: var(--kind-all); border-color: var(--kind-all-border); color: var(--text); }
#searchKindFilter button.is-kind-einzel,
#searchKindFilter button.is-kind-einzel.active { background: var(--kind-einzel); border-color: var(--kind-einzel-border); color: var(--text); }
#searchKindFilter button.is-kind-auto,
#searchKindFilter button.is-kind-auto.active { background: var(--kind-auto); border-color: var(--kind-auto-border); color: var(--text); }
#searchKindFilter button.is-kind-tags,
#searchKindFilter button.is-kind-tags.active { background: var(--kind-tags); border-color: var(--kind-tags-border); color: var(--text); }
#searchKindFilter button.is-kind-projects,
#searchKindFilter button.is-kind-projects.active { background: var(--kind-projects); border-color: var(--kind-projects-border); color: var(--text); }
#searchKindFilter button.is-kind-links,
#searchKindFilter button.is-kind-links.active { background: var(--kind-links); border-color: var(--kind-links-border); color: var(--text); }

#searchKindFilter button[class*="is-kind-"] em,
#searchKindFilter button[class*="is-kind-"].active em {
  background: #fff;
  color: var(--text);
}

#searchKindFilter button.active {
  font-weight: 700;
  box-shadow: inset 0 0 0 1px rgba(28, 18, 24, 0.14);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand strong {
  display: block;
  font-size: 15px;
  line-height: 1.2;
}

.brand-mark {
  width: 28px;
  height: 28px;
  display: block;
  flex-shrink: 0;
}

.topbar .muted {
  font-size: 12px;
}

.mandant-switch,
.view-switch {
  display: flex;
  background: var(--accent-soft);
  padding: 3px;
  border-radius: var(--radius);
}

.mandant-switch button,
.view-switch button,
.ghost {
  background: transparent;
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 6px 11px;
}

.mandant-switch button.active,
.view-switch button.active {
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}

.tag-prefix-filter.is-disabled {
  opacity: 0.48;
}

.tag-prefix-filter.is-disabled button.active {
  background: #fff;
  border-color: var(--line);
  color: var(--text);
}

.tag-prefix-filter.is-disabled button.active em {
  background: var(--accent-soft);
  color: var(--accent);
}

.search-scope {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

.search-scope[hidden],
.label-filter[hidden] {
  display: none;
}

.label-filter {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.label-filter-clear {
  padding: 4px 10px;
  font-size: 12px;
}

.topbar .view-switch,
.topbar .mandant-switch {
  padding: 2px;
}

.topbar .view-switch button,
.topbar .mandant-switch button {
  padding: 4px 10px;
  font-size: 13px;
  line-height: 1.25;
}

.topbar .view-switch button {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.topbar .view-switch button.is-kind-einzel,
.topbar .view-switch button.is-kind-einzel.active {
  background: var(--kind-einzel);
  color: var(--text);
}

.topbar .view-switch button.is-kind-auto,
.topbar .view-switch button.is-kind-auto.active {
  background: var(--kind-auto);
  color: var(--text);
}

.topbar .view-switch button.is-kind-tags,
.topbar .view-switch button.is-kind-tags.active {
  background: var(--kind-tags);
  color: var(--text);
}

.topbar .view-switch button.is-kind-projects,
.topbar .view-switch button.is-kind-projects.active {
  background: var(--kind-projects);
  color: var(--text);
}

.topbar .view-switch button.active {
  font-weight: 700;
  box-shadow: inset 0 0 0 1px rgba(28, 18, 24, 0.14);
}

.topbar .view-switch button em {
  font-style: normal;
  font-size: 10px;
  font-weight: 700;
  min-width: 1.2em;
  padding: 0 5px;
  border-radius: 999px;
  background: #fff;
  color: var(--text);
  line-height: 1.45;
  font-variant-numeric: tabular-nums;
}

.topbar .view-switch button.active em {
  background: #fff;
  color: var(--text);
}

.topbar-actions {
  --topbar-control-h: 28px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

.topbar-actions > form {
  display: flex;
  align-items: center;
  margin: 0;
}

.topbar-actions .mandant-switch {
  height: var(--topbar-control-h);
  align-items: stretch;
  box-sizing: border-box;
}

.topbar-actions .mandant-switch button {
  display: inline-flex;
  align-items: center;
  height: 100%;
  padding: 0 10px;
  font-size: 12px;
  line-height: 1;
}

.topbar-actions .ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: var(--topbar-control-h);
  padding: 0 10px;
  font-size: 12px;
  line-height: 1;
  border-radius: var(--radius-sm);
}

.topbar-actions .ghost.logout {
  width: var(--topbar-control-h);
  height: var(--topbar-control-h);
  padding: 0;
}

.sync-status {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  height: var(--topbar-control-h, 28px);
}

.sync-copy {
  display: grid;
  line-height: 1.15;
}

.sync-kicker {
  font-size: 10px;
  color: var(--muted);
}

.sync-time {
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.55);
  animation: live-pulse 1.7s ease-out infinite;
  flex-shrink: 0;
}

@keyframes live-pulse {
  0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.55); }
  70% { box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .live-dot { animation: none; }
}

.ghost {
  border: 1px solid var(--line);
  background: #fff;
}

.ghost.is-active {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 35%, var(--line));
}

.ghost.logout {
  color: #c62828;
  width: 28px;
  height: 28px;
  padding: 0;
  display: grid;
  place-items: center;
}

.ghost.logout svg {
  width: 15px;
  height: 15px;
  display: block;
}

.ghost.logout:hover {
  background: #fdecec;
  border-color: #f0c4c4;
}

.topbar .primary,
.sync-dialog .primary {
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 5px 11px;
  font-size: 13px;
  line-height: 1.25;
  font-weight: 600;
}

.topbar #syncBtn {
  color: var(--muted);
}

.sync-dialog {
  border: 0;
  padding: 0;
  background: transparent;
  max-width: 340px;
  width: calc(100vw - 32px);
}

.sync-dialog::backdrop {
  background: rgba(28, 18, 24, 0.28);
}

.sync-dialog-card {
  margin: 0;
  padding: 16px 16px 14px;
  background: #fff;
  border-radius: 10px;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.7) inset,
    0 2px 4px color-mix(in srgb, var(--accent) 12%, transparent),
    0 18px 40px -12px color-mix(in srgb, var(--accent) 38%, transparent),
    0 28px 56px -18px rgba(28, 18, 24, 0.28);
  display: grid;
  gap: 10px;
}

.sync-dialog-card h2 {
  margin: 0;
  font-size: 16px;
  text-shadow:
    0 1px 0 rgba(255, 255, 255, 0.9),
    0 6px 14px color-mix(in srgb, var(--accent) 34%, transparent);
}

.sync-dialog-card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.45;
  color: var(--muted);
}

.sync-dialog-card p strong {
  color: var(--text);
  font-weight: 600;
}

.sync-slots {
  display: grid;
  gap: 6px;
  padding: 8px 10px;
  background: var(--accent-soft);
  border-radius: var(--radius-sm);
}

.sync-slots div {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  font-size: 12px;
}

.sync-slots span {
  width: 42px;
  color: var(--muted);
  font-weight: 600;
}

.sync-slots b {
  font-weight: 700;
  background: #fff;
  border-radius: 4px;
  padding: 1px 5px;
  font-variant-numeric: tabular-nums;
}

.sync-slots em {
  font-style: normal;
  color: var(--muted);
  font-size: 11px;
}

.sync-dialog-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.sync-wait {
  margin: 0 auto 0 0;
  font-size: 11px;
  color: var(--muted);
  line-height: 1.3;
}

main {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.split {
  display: grid;
  grid-template-columns: minmax(300px, 380px) 1fr;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.split[hidden] {
  display: none !important;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  height: 36px;
  padding: 0 16px;
  background: rgba(255,255,255,0.86);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--line);
  flex-shrink: 0;
}

.login-body .site-footer {
  justify-self: stretch;
}

.footer-logo-link {
  display: block;
  line-height: 0;
  text-decoration: none;
}

.footer-logo-link:hover .footer-logo {
  opacity: 0.75;
}

.footer-logo-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.footer-logo {
  height: 16px;
  width: auto;
  display: block;
}

.footer-credit {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.01em;
}

.list-pane,
.preview-pane {
  min-height: 0;
  overflow: hidden;
}

.list-pane {
  border-right: 1px solid var(--line);
  background: rgba(255,255,255,0.55);
  display: flex;
  flex-direction: column;
  position: relative;
}

.list-tools {
  padding: 10px 12px 6px;
  display: grid;
  gap: 8px;
}

.list-tools input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  background: #fff;
}

.list-meta {
  margin: 0;
  padding: 0 14px 6px;
  color: var(--muted);
  font-size: 12px;
}

.mail-list,
.tag-list {
  scrollbar-width: thin;
  scrollbar-color: var(--accent) var(--accent-soft);
  color-scheme: light;
}

.mail-list::-webkit-scrollbar,
.tag-list::-webkit-scrollbar {
  width: 6px;
}

.mail-list::-webkit-scrollbar-track,
.tag-list::-webkit-scrollbar-track {
  background: var(--accent-soft);
  border-radius: 6px;
}

.mail-list::-webkit-scrollbar-thumb,
.tag-list::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 6px;
}

.mail-list::-webkit-scrollbar-thumb:hover,
.tag-list::-webkit-scrollbar-thumb:hover {
  background: color-mix(in srgb, var(--accent) 78%, #1c1218);
}

.mail-list {
  overflow: auto;
  padding: 0 10px 12px;
  display: grid;
  gap: 5px;
  align-content: start;
}

.mail-card {
  background: var(--surface);
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 8px 10px;
  text-align: left;
  cursor: pointer;
  box-shadow: 0 1px 0 rgba(0,0,0,0.03);
}

/* Kind-emoji hangs left; subject/meta align with title text */
.mail-card:has(> .name .kind-prefix) {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  column-gap: 0.35em;
  row-gap: 2px;
}

.mail-card:has(> .name .kind-prefix) > .name {
  display: contents;
}

.mail-card:has(> .name .kind-prefix) .kind-prefix {
  grid-column: 1;
  grid-row: 1;
  margin-right: 0; /* gap via grid column-gap */
}

.mail-card:has(> .name .kind-prefix) .kind-title {
  grid-column: 2;
  grid-row: 1;
  min-width: 0;
}

.mail-card:has(> .name .kind-prefix) > .subject,
.mail-card:has(> .name .kind-prefix) > .preheader,
.mail-card:has(> .name .kind-prefix) > .meta {
  grid-column: 2;
}

.mail-card:hover,
.mail-card.active {
  border-color: var(--accent);
}

.mail-card.active {
  background: var(--accent-soft);
}

.mail-card .name {
  font-weight: 650;
  margin-bottom: 2px;
  font-size: 13px;
}

.kind-prefix {
  flex-shrink: 0;
  margin-right: 0.35em;
}

.tag-card:has(.kind-prefix) > .tag-meta {
  padding-left: calc(1em + 0.35em);
}

.mail-card .meta-start {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  min-width: 0;
}

.mail-card .badges {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.ac-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  line-height: 1.25;
  padding: 2px 6px;
  border-radius: 8px;
  letter-spacing: 0.01em;
  cursor: pointer;
  box-shadow: inset 0 0 0 1px transparent;
}

.mail-card .ac-badge:hover,
.ac-badge.is-active {
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.28);
}

.mail-card .subject {
  color: #5b2a6e;
  font-size: 12px;
}

.mail-card .preheader {
  color: #9a6b3c;
  font-size: 12px;
  font-style: italic;
}

.mail-card .subject:empty,
.mail-card .preheader:empty {
  display: none;
}

.search-hit {
  background: #ffe9a3;
  color: inherit;
  padding: 0 0.08em;
  border-radius: 2px;
}

.mail-card .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-top: 5px;
  color: var(--muted);
  font-size: 11px;
}

.preview-pane {
  background:
    linear-gradient(180deg, rgba(255,255,255,0.65), rgba(255,255,255,0.2));
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.preview-empty {
  flex: 1;
  display: grid;
  place-items: center;
  color: var(--muted);
}

.preview-empty[hidden],
#previewFrame[hidden],
#searchFrame[hidden],
.tag-detail[hidden] {
  display: none !important;
}

#previewFrame,
#searchFrame {
  width: 100%;
  flex: 1;
  min-height: 0;
  border: 0;
  background: #fff;
}

.empty-list {
  color: var(--muted);
  padding: 24px 8px;
  text-align: center;
}

.tags-panel-tools {
  padding: 10px 12px 6px;
  display: grid;
  gap: 8px;
}

.tags-panel-tools input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  background: #fff;
}

.tag-list-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.tag-prefix-filter,
.tag-archive-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.tag-prefix-filter button,
.tag-archive-filter button {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 3px 6px 3px 7px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
}

.tag-prefix-filter button em,
.tag-archive-filter button em {
  font-style: normal;
  font-size: 10px;
  font-weight: 700;
  min-width: 1.15em;
  padding: 0 4px;
  border-radius: 4px;
  background: var(--accent-soft);
  color: var(--accent);
  line-height: 1.4;
}

.tag-prefix-filter button.active,
.tag-archive-filter button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.tag-prefix-filter button.active em,
.tag-archive-filter button.active em {
  background: rgba(255, 255, 255, 0.22);
  color: #fff;
}

.tag-archive-filter button {
  color: #8a5a2b;
}

.tag-archive-filter button em {
  background: #f4eadc;
  color: #8a5a2b;
}

.tag-archive-filter button.active {
  background: #8a5a2b;
  border-color: #8a5a2b;
  color: #fff;
}

.tag-list {
  overflow: auto;
  margin-top: 20px;
  padding: 0 10px 12px;
  display: grid;
  gap: 14px;
  align-content: start;
}

.tag-group {
  display: grid;
  gap: 6px;
}

#projectList .tag-group {
  gap: 0;
}

#projectList .tag-group-title {
  margin-bottom: 10px;
}

#projectList .tag-card {
  margin-bottom: 5px;
}

.tag-group-title {
  margin: 0;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
}

#tagList .tag-group-title {
  margin-bottom: 4px;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--kind-tags) 65%, #fff);
  border: 1px solid color-mix(in srgb, var(--kind-tags-border) 55%, transparent);
}

.tag-group-label {
  min-width: 0;
}

.tag-group-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.5em;
  padding: 1px 7px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: none;
  line-height: 1.35;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--kind-tags-border);
  box-shadow: 0 1px 1px rgba(28, 18, 24, 0.04);
}

#projectList .tag-group-count {
  border-color: var(--kind-projects-border);
  background: color-mix(in srgb, var(--kind-projects) 55%, #fff);
}

details.tag-group > .tag-group-title {
  cursor: pointer;
  list-style: none;
  user-select: none;
}

details.tag-group > .tag-group-title::-webkit-details-marker {
  display: none;
}

details.tag-group > .tag-group-title::before {
  content: "▾";
  font-size: 9px;
  line-height: 1;
  opacity: 0.7;
}

details.tag-group:not([open]) > .tag-group-title::before {
  content: "▸";
}

.tag-card {
  background: var(--surface);
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 8px 10px;
  text-align: left;
  cursor: pointer;
  width: 100%;
  box-shadow:
    0 1px 2px rgba(28, 18, 24, 0.05),
    0 6px 14px rgba(28, 18, 24, 0.07);
}

.tag-card:hover,
.tag-card.active {
  border-color: var(--accent);
}

.tag-card.active {
  background: var(--accent-soft);
}

.tag-card.is-stale {
  background: #faf7f2;
}

.tag-card.is-stale.active {
  background: var(--accent-soft);
}

.tag-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.tag-card-head strong {
  font-size: 13px;
}

.tag-marks {
  display: flex;
  flex-shrink: 0;
  gap: 4px;
}

.tag-mark {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 1px 5px;
  border-radius: 4px;
}

.tag-mark.is-ac {
  background: #f4eef8;
  color: #6b3a86;
}

.tag-mark.is-doc {
  background: #f4f7ee;
  color: #4f6b24;
}

.tag-mark.is-archive {
  background: #f4eadc;
  color: #8a5a2b;
}

.tag-detail {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 28px 32px;
  background: var(--surface);
}

.tag-detail .tag-card-head strong {
  font-size: 22px;
}

.tag-detail .tag-meta {
  margin-top: 6px;
  font-size: 13px;
}

.tag-detail .tag-source {
  margin-top: 14px;
  padding: 12px 14px;
  grid-template-columns: 52px 1fr;
}

.tag-detail .tag-source p {
  font-size: 15px;
  line-height: 1.5;
}

.tag-detail:has(.detail-pane) {
  padding: 0;
  background: var(--surface);
}

.detail-pane {
  min-height: 100%;
  background:
    radial-gradient(ellipse 90% 42% at 8% 0%, color-mix(in srgb, var(--detail-kind) 90%, #fff) 0%, transparent 58%),
    var(--surface);
}

.detail-pane--projects {
  --detail-kind: var(--kind-projects);
  --detail-kind-border: var(--kind-projects-border);
  --detail-kicker-color: #8a5a2b;
}

.detail-pane--tags {
  --detail-kind: var(--kind-tags);
  --detail-kind-border: var(--kind-tags-border);
  --detail-kicker-color: #3d4a66;
}

.detail-hero {
  padding: 28px 32px 26px;
  border-bottom: 1px solid color-mix(in srgb, var(--detail-kind-border) 70%, var(--line));
  background: linear-gradient(
    165deg,
    color-mix(in srgb, var(--detail-kind) 92%, #fff) 0%,
    color-mix(in srgb, var(--detail-kind) 35%, transparent) 55%,
    transparent 100%
  );
}

.detail-kicker {
  margin: 0 0 14px;
  display: inline-flex;
  align-items: center;
  width: fit-content;
  max-width: 100%;
  gap: 6px;
  padding: 5px 11px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--detail-kind-border);
  box-shadow: 0 1px 2px color-mix(in srgb, var(--detail-kind-border) 28%, transparent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--detail-kicker-color);
}

.detail-kicker.is-archive {
  background: #f4eadc;
  border-color: #e2d0b4;
  color: #8a5a2b;
}

.detail-title {
  margin: 0;
  max-width: 28ch;
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--text);
}

.detail-meta {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.detail-section {
  display: grid;
  gap: 14px;
  padding: 18px 32px;
}

.detail-section + .detail-section {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.detail-section-title {
  margin: 0;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--muted);
}

.detail-sources {
  display: grid;
  gap: 10px;
}

.detail-sources .tag-source,
.detail-sources .tag-meta {
  margin-top: 0;
}

.detail-pane .project-links,
.detail-pane .project-tags-block,
.detail-pane .tag-project-block {
  margin-top: 0;
  margin-bottom: 0;
}

.detail-pane .project-link-row {
  align-items: center;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--accent-soft) 50%, #fff);
  border: 1px solid color-mix(in srgb, var(--accent) 14%, var(--line));
  transition: background 160ms ease, border-color 160ms ease;
}

.detail-pane .project-link-row:hover {
  background: var(--accent-soft);
  border-color: color-mix(in srgb, var(--accent) 28%, var(--line));
}

.detail-pane .project-link-remove {
  margin: 0;
}

.detail-pane .project-link-add button {
  transition: filter 160ms ease, transform 160ms ease;
}

.detail-pane .project-link-add button:hover {
  transform: translateY(-1px);
}

.detail-pane .project-tags::before {
  display: none;
}

.detail-pane .project-tag-chip {
  transition: transform 160ms ease, filter 160ms ease;
}

.detail-pane .project-tag-chip:hover {
  filter: brightness(0.98);
  transform: translateY(-1px);
}

.detail-pane--tags .tag-project-block .tag-mark.is-doc {
  font-size: 14px;
  font-weight: 600;
  padding: 5px 10px 5px 12px;
}

.detail-pane--tags .detail-sources .tag-source {
  margin-top: 0;
  padding: 14px 16px;
  grid-template-columns: 56px 1fr;
  border-radius: var(--radius);
  box-shadow: 0 1px 0 color-mix(in srgb, var(--line) 80%, transparent);
}

.detail-pane--tags .detail-sources .tag-source p {
  font-size: 15px;
  line-height: 1.5;
}

.project-links {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.project-links a {
  display: flex;
  align-items: baseline;
  gap: 6px;
  min-width: 0;
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  word-break: break-all;
}

.project-links a::before {
  content: '🔗';
  flex-shrink: 0;
}

.project-links a:hover {
  text-decoration: underline;
}

.project-link-add {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: center;
}

.project-link-add input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 7px 10px;
  background: #fff;
  color: var(--text);
}

.project-link-add input:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 35%, transparent);
  outline-offset: 1px;
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
}

.project-link-add button {
  border: 0;
  border-radius: var(--radius-sm);
  padding: 7px 12px;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.project-link-add button:hover {
  filter: brightness(0.96);
}

.project-link-add button:disabled {
  opacity: 0.55;
  cursor: default;
}

.project-link-list {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.project-link-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: start;
}

.project-link-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  margin: -4px 0 0;
  padding: 0;
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: #c0392b;
  cursor: pointer;
  flex-shrink: 0;
}

.project-link-remove:hover {
  background: #fdecec;
}

.project-link-remove svg {
  width: 16px;
  height: 16px;
  display: block;
}

.sync-dialog .danger {
  background: #c0392b;
  color: #fff;
  border: 0;
  border-radius: var(--radius-sm);
  padding: 5px 11px;
  font-size: 13px;
  line-height: 1.25;
  font-weight: 600;
  cursor: pointer;
}

.sync-dialog .danger:hover {
  background: #a93226;
}

.project-tags-block {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.project-tags::before {
  content: '🏷️';
  flex-shrink: 0;
}

.project-tags-empty {
  margin: 0;
}

.project-tag-chip {
  display: inline-flex;
  align-items: stretch;
  max-width: 100%;
  border-radius: 999px;
  overflow: hidden;
}

.project-tag-chip:has(.is-ac) {
  background: #f4eef8;
}

.project-tag-chip:has(.is-archive) {
  background: #f4eadc;
}

.project-tag-chip:has(.is-doc) {
  background: var(--kind-projects);
}

.tag-project-block {
  display: grid;
  gap: 10px;
  margin-top: 16px;
  margin-bottom: 15px;
}

.tag-project-assigned {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}

.tag-project-empty {
  margin: 0;
}

.tag-project-add {
  position: relative;
  display: grid;
}

.tag-project-add input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 7px 10px;
  background: #fff;
  color: var(--text);
}

.tag-project-add input:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 35%, transparent);
  outline-offset: 1px;
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
}

.tag-project-block .tag-mark.is-doc {
  background: transparent;
  border: 0;
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0;
  padding: 4px 8px;
  color: var(--text);
  cursor: pointer;
}

.tag-project-block .tag-mark.is-doc:hover {
  filter: brightness(0.96);
}

.project-tags .tag-mark {
  border: 0;
  border-radius: 0;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0;
  padding: 3px 4px 3px 7px;
  cursor: pointer;
  background: transparent;
}

.project-tags .tag-mark.is-ac,
.project-tags .tag-mark.is-archive {
  background: transparent;
}

.project-tags .tag-mark:hover {
  filter: brightness(0.96);
}

.project-tag-remove {
  border: 0;
  background: transparent;
  color: #c0392b;
  font-size: 14px;
  line-height: 1;
  padding: 0 7px 0 2px;
  cursor: pointer;
}

.project-tag-remove:hover {
  background: color-mix(in srgb, #c0392b 12%, transparent);
}

.project-tag-add {
  position: relative;
  display: grid;
}

.project-tag-add input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 7px 10px;
  background: #fff;
  color: var(--text);
}

.project-tag-add input:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 35%, transparent);
  outline-offset: 1px;
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
}

.project-tag-suggestions {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  z-index: 5;
  display: grid;
  max-height: 220px;
  overflow: auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
}

.project-tag-suggestions[hidden] {
  display: none;
}

.project-tag-option {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: #fff;
  padding: 8px 10px;
  text-align: left;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}

.project-tag-option:last-child {
  border-bottom: 0;
}

.project-tag-option:hover {
  background: var(--accent-soft);
}

.project-tag-option span {
  word-break: break-word;
}

.project-tag-option em {
  flex-shrink: 0;
  font-style: normal;
  font-size: 11px;
  color: var(--muted);
}

.project-tag-create {
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--kind-projects) 55%, #fff);
}

.project-tag-create-label {
  margin: 0;
  padding: 8px 10px 4px;
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
}

.project-tag-option.is-create {
  background: transparent;
  font-weight: 600;
}

.project-tag-option.is-create:hover {
  background: color-mix(in srgb, var(--kind-projects) 80%, #fff);
}

.tag-stale {
  flex-shrink: 0;
  font-size: 10px;
  font-weight: 600;
  color: #8a5a2b;
}

.tag-meta {
  margin: 3px 0 0;
  font-size: 11px;
  color: var(--muted);
}

.tag-source {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 8px;
  align-items: start;
  margin-top: 7px;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
}

.tag-source span {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  line-height: 1.3;
  padding-top: 1px;
}

.tag-source p {
  margin: 0;
  font-size: 12px;
  line-height: 1.4;
  white-space: pre-wrap;
}

.tag-source.is-ac {
  background: #f4eef8;
  border-color: #e4d5ee;
}

.tag-source.is-ac span {
  color: #6b3a86;
}

.tag-source.is-doc {
  background: #f4f7ee;
  border-color: #dce6c8;
}

.tag-source.is-doc span {
  color: #4f6b24;
}

@media (max-width: 860px) {
  .topbar {
    grid-template-columns: 1fr;
    justify-items: start;
  }
  .topbar-actions { justify-content: start; flex-wrap: wrap; }
  .split {
    grid-template-columns: 1fr;
    height: auto;
    flex: none;
  }
  .list-pane { min-height: 50vh; max-height: 50vh; }
  .preview-pane { min-height: 50vh; border-top: 1px solid var(--line); }
}