* { box-sizing: border-box; }

:root {
  color-scheme: dark;
  --font-title: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --canvas: #0b1220;
  --surface: #111c2d;
  --surface-elevated: #19283b;
  --surface-alt: #0f1a2b;
  --surface-hover: #20334a;
  --ink: #f2f6fb;
  --muted: #9aaac0;
  --faint: #708198;
  --line: rgba(148, 163, 184, .19);
  --line-strong: rgba(148, 163, 184, .32);
  --blue: #38bdf8;
  --blue-dark: #0ea5e9;
  --blue-soft: rgba(56, 189, 248, .13);
  --green: #34d399;
  --green-soft: rgba(52, 211, 153, .14);
  --red: #f87171;
  --red-soft: rgba(248, 113, 113, .13);
  --amber: #fbbf24;
  --amber-soft: rgba(251, 191, 36, .13);
  --shadow: 0 16px 38px rgba(0, 0, 0, .22);
  --radius: 8px;
}
html { min-height: 100%; background: var(--canvas); }
body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font-family: var(--font-body);
  line-height: 1.5;
  overflow-x: hidden;
}
button, input, select { font: inherit; }
button { cursor: pointer; }
button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid rgba(56, 189, 248, .28);
  outline-offset: 2px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 30px clamp(18px, 5vw, 72px) 26px;
  background: var(--surface-alt);
  border-bottom: 1px solid var(--line);
}
.eyebrow {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: .74rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}
h1, h2, p { margin-top: 0; }
h1 {
  margin-bottom: 0;
  color: var(--ink);
  font-family: var(--font-title);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: 0;
}
h2 {
  margin-bottom: 0;
  color: var(--ink);
  font-family: var(--font-title);
  font-size: 1.18rem;
  font-weight: 750;
}
.topbar-actions, .action-row, .selection-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  border: 1px solid rgba(52, 211, 153, .3);
  border-radius: 999px;
  color: var(--green);
  background: var(--green-soft);
  font-size: .83rem;
  font-weight: 700;
}
.status-pill::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  content: "";
}
.muted { color: var(--muted); font-size: .86rem; }

.page-shell {
  width: min(1500px, calc(100% - 32px));
  margin: 24px auto 56px;
}
.filter-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.filter-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}
.filter-summary::-webkit-details-marker { display: none; }
.filter-summary::after { content: "⌄"; color: var(--blue); font-size: 1.2rem; }
.filter-panel[open] .filter-summary::after { content: "⌃"; }
.filter-summary strong { display: block; font-family: var(--font-title); font-size: 1.05rem; }
.filter-summary .eyebrow { display: block; }
.filter-summary-toggle { color: var(--muted); font-size: .78rem; }
.toolbar {
  display: grid;
  grid-template-columns: minmax(220px, 2fr) repeat(5, minmax(130px, 1fr));
  gap: 12px;
  padding: 16px;
  border-top: 1px solid var(--line);
  border-right: 0;
  border-bottom: 0;
  border-left: 0;
  border-radius: 0 0 var(--radius) var(--radius);
  background: var(--surface);
}
.toolbar label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 750;
}
.toolbar input, .toolbar select {
  width: 100%;
  min-height: 43px;
  padding: 9px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  color: var(--ink);
  background: var(--surface-elevated);
}
.toolbar input::placeholder { color: var(--faint); }
.toolbar input:focus, .toolbar select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px var(--blue-soft);
  outline: 0;
}
select option { color: var(--ink); background: var(--surface-elevated); }

.feedback {
  margin-top: 14px;
  padding: 12px 14px;
  border: 1px solid rgba(52, 211, 153, .28);
  border-radius: var(--radius);
  color: var(--green);
  background: var(--green-soft);
  font-weight: 650;
}
.feedback.error {
  border-color: rgba(248, 113, 113, .3);
  color: var(--red);
  background: var(--red-soft);
}

.preview-panel {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(280px, 2fr) auto;
  align-items: center;
  gap: 18px;
  margin-top: 16px;
  padding: 18px;
  border: 1px solid rgba(251, 191, 36, .32);
  border-radius: var(--radius);
  background: var(--amber-soft);
  box-shadow: var(--shadow);
}
.preview-panel[hidden] { display: none; }
.preview-panel .eyebrow, .preview-panel h2 { color: var(--amber); }
.preview-panel p { margin-bottom: 0; }
.preview-items {
  max-height: 170px;
  margin: 0;
  padding-left: 20px;
  overflow: auto;
}
.preview-items li { margin-bottom: 7px; }
.preview-items span {
  display: block;
  color: var(--muted);
  font-size: .82rem;
  overflow-wrap: anywhere;
}

.workspace-grid {
  display: grid;
  grid-template-columns: minmax(360px, .92fr) minmax(0, 1.4fr);
  gap: 18px;
  margin-top: 18px;
  align-items: start;
}
.list-panel, .reader-panel {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.list-panel { overflow: hidden; }
.panel-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 18px 14px;
  border-bottom: 1px solid var(--line);
}
.list-heading-actions {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  flex-direction: column;
}
.sort-toggle {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface-alt);
}
.sort-option {
  min-height: 30px;
  padding: 5px 9px;
  border: 1px solid transparent;
  border-radius: 5px;
  color: var(--muted);
  background: transparent;
  font-size: .76rem;
  font-weight: 750;
}
.sort-option:hover { color: var(--ink); background: var(--surface-hover); }
.sort-option-active {
  border-color: rgba(56, 189, 248, .35);
  color: var(--blue);
  background: var(--blue-soft);
}
.selection-actions {
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-alt);
}
.button {
  min-height: 39px;
  padding: 8px 13px;
  border: 1px solid transparent;
  border-radius: 7px;
  font-weight: 750;
  transition: background .15s ease, border-color .15s ease, color .15s ease, transform .15s ease;
}
.button:hover:not(:disabled) { transform: translateY(-1px); }
.button:disabled { cursor: not-allowed; opacity: .42; }
.button-secondary {
  border-color: var(--line-strong);
  color: var(--ink);
  background: var(--surface-elevated);
}
.button-secondary:hover:not(:disabled) {
  border-color: var(--blue);
  color: var(--blue);
  background: var(--blue-soft);
}
.button-archive {
  border-color: rgba(251, 191, 36, .45);
  color: var(--amber);
  background: var(--amber-soft);
}
.button-archive:hover:not(:disabled) {
  border-color: var(--amber);
  background: rgba(251, 191, 36, .22);
}
.button-danger { color: #190b0b; background: var(--red); }
.button-danger:hover:not(:disabled) { background: #fb8b8b; }
.button-danger-outline {
  border-color: rgba(248, 113, 113, .42);
  color: var(--red);
  background: transparent;
}
.button-danger-outline:hover:not(:disabled) { background: var(--red-soft); }

.entry-list { max-height: 720px; overflow: auto; }
.entry-group {
  border-bottom: 1px solid var(--line);
}
.entry-group:last-child { border-bottom: 0; }
.entry-group summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 18px 8px;
  border-bottom: 1px solid var(--line);
  color: var(--blue);
  background: var(--surface-alt);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .75rem;
  font-weight: 750;
  overflow-wrap: anywhere;
  cursor: pointer;
  list-style: none;
}
.entry-group summary::-webkit-details-marker { display: none; }
.entry-group summary::before { content: '▾'; width: 12px; color: var(--blue); }
.entry-group:not([open]) summary::before { content: '▸'; }
.entry-group summary > span:first-child { flex: 1; }
.entry-group-count { color: var(--muted); font-family: var(--font-body); font-size: .72rem; }
.entry-group-list .entry-row:last-child { border-bottom: 0; }
.entry-row {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 9px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
}
.entry-row:last-child { border-bottom: 0; }
.entry-row:hover { background: var(--surface-hover); }
.entry-row-current { background: var(--blue-soft); }
.entry-row input {
  width: 17px;
  height: 17px;
  margin-top: 3px;
  accent-color: var(--blue);
}
.entry-open {
  min-width: 0;
  padding: 0;
  color: var(--ink);
  text-align: left;
  border: 0;
  background: transparent;
}
.entry-title {
  display: block;
  margin-bottom: 3px;
  color: var(--ink);
  font-weight: 780;
  overflow-wrap: anywhere;
}
.entry-details { display: block; color: #cad6e5; font-size: .83rem; }
.entry-path {
  display: block;
  color: var(--faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .74rem;
  overflow-wrap: anywhere;
}
.entry-badges { display: flex; gap: 6px; flex-wrap: wrap; margin: 8px 0 4px; }
.badge {
  display: inline-block;
  padding: 3px 7px;
  border-radius: 999px;
  color: var(--muted);
  background: rgba(148, 163, 184, .13);
  font-size: .7rem;
  font-weight: 750;
}
.badge-topic, .badge-source { color: var(--blue); background: var(--blue-soft); }
.badge-draft { color: var(--red); background: var(--red-soft); }
.badge-active { color: var(--green); background: var(--green-soft); }
.empty-state { color: var(--muted); }

.reader-panel { position: sticky; top: 16px; }
.reader-heading { align-items: center; }
.reader-heading-actions { display: flex; align-items: center; gap: 10px; }
.reader-heading-actions .button { display: none; }
.reader-heading-actions #reader-previous,
.reader-heading-actions #reader-archive,
.reader-heading-actions #reader-discard { display: inline-flex; }
.reader-heading-actions #reader-previous[hidden],
.reader-heading-actions #reader-archive[hidden],
.reader-heading-actions #reader-discard[hidden] { display: none; }
.file-path {
  margin: 0;
  padding: 12px 18px;
  color: var(--faint);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .78rem;
  overflow-wrap: anywhere;
  border-bottom: 1px solid var(--line);
}
.markdown-content {
  min-height: 360px;
  padding: 24px clamp(18px, 4vw, 42px);
  overflow-wrap: anywhere;
}
.markdown-content h1 { margin: 0 0 18px; font-size: 2rem; }
.markdown-content h2 { margin: 24px 0 9px; font-size: 1.3rem; }
.markdown-content h3 { margin: 18px 0 7px; font-size: 1.05rem; }
.markdown-content p { margin: 0 0 12px; color: #dbe5f1; }
.markdown-content ul { margin: 0 0 14px; padding-left: 23px; }
.markdown-content li { margin: 4px 0; color: #dbe5f1; }
.markdown-content code {
  padding: 2px 4px;
  border-radius: 4px;
  color: var(--blue);
  background: rgba(56, 189, 248, .12);
  font-size: .9em;
}
.wiki-link {
  padding: 0;
  border: 0;
  color: var(--blue);
  background: transparent;
  font: inherit;
  text-decoration: underline;
  text-decoration-color: rgba(56, 189, 248, .45);
  text-underline-offset: 3px;
}
.wiki-link:hover { color: var(--ink); text-decoration-color: var(--ink); }
.asset-preview { margin: 0; }
.asset-preview img {
  display: block;
  width: 100%;
  max-height: 72vh;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0a111d;
}
.markdown-content pre {
  padding: 12px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 7px;
  color: #dbe5f1;
  background: #0a111d;
}
.frontmatter {
  margin-bottom: 22px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface-alt);
}
.frontmatter summary { cursor: pointer; color: var(--muted); font-weight: 750; }
.frontmatter pre { margin: 10px 0 0; white-space: pre-wrap; font-size: .76rem; }

@media (max-width: 1100px) {
  .toolbar { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .search-field { grid-column: 1 / -1; }
}
@media (max-width: 820px) {
  .topbar { align-items: flex-start; flex-direction: column; }
  .workspace-grid { grid-template-columns: 1fr; }
  .reader-panel { position: static; }
  .entry-list { max-height: 46vh; }
  .reader-heading-actions .button { display: inline-flex; }
  .preview-panel { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .page-shell { width: min(100% - 20px, 1500px); margin-top: 12px; }
  .topbar { padding: 24px 16px; }
  .topbar-actions { width: 100%; justify-content: space-between; }
  .toolbar { grid-template-columns: 1fr; padding: 12px; }
  .search-field { grid-column: auto; }
  .panel-heading, .selection-actions { padding-right: 13px; padding-left: 13px; }
  .list-panel > .panel-heading { align-items: flex-start; }
  .list-heading-actions { width: 100%; align-items: flex-start; flex-direction: row; justify-content: space-between; flex-wrap: wrap; }
  .entry-row { padding-right: 13px; padding-left: 13px; }
  .entry-group summary { padding-right: 13px; padding-left: 13px; }
}