/* CICO Bike Catalog — app shell (dark) */
html.catalog-app {
  color-scheme: dark;
  --bg: #0f1117;
  --panel: #1a1d27;
  --panel-header: #252830;
  --sidebar-bg: #141720;
  --border: #2d3040;
  --text: #e1e4ec;
  --text-dim: #8b8fa3;
  --muted: #8b8fa3;
  --accent: #6c8cff;
  --accent-hover: #8ba3ff;
  --accent-soft: rgba(108, 140, 255, 0.14);
  --surface: #1a1d27;
  --input-bg: #12141c;
  --row-hover: #1f2233;
  --selected: #1e2a4a;
  --green: #4ade80;
  --green-dim: #166534;
  --orange: #fb923c;
  --red: #f87171;
  --yellow: #fbbf24;
  --teal: #2dd4bf;
  --purple: #a78bfa;
  --nav-width: 15.5rem;
  --nav-collapsed: 3.25rem;
}

html.catalog-app.catalog-theme-light {
  color-scheme: light;
  --bg: #f4f6fa;
  --panel: #ffffff;
  --panel-header: #eef1f7;
  --sidebar-bg: #ffffff;
  --border: #dde3ed;
  --text: #1c2130;
  --text-dim: #5c6578;
  --muted: #5c6578;
  --accent: #2f5bdd;
  --accent-hover: #4a6fe6;
  --accent-soft: rgba(47, 91, 221, 0.12);
  --surface: #ffffff;
  --input-bg: #ffffff;
  --row-hover: #eef1f7;
  --selected: #e8eefc;
  --green: #0d6e4b;
  --green-dim: #d1fae5;
  --orange: #c2410c;
  --red: #b42318;
  --yellow: #a16207;
  --teal: #0f766e;
  --purple: #6b21a8;
}

html.catalog-app,
html.catalog-app body {
  margin: 0;
  height: 100%;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

html.catalog-app body {
  display: flex;
  flex-direction: row;
  overflow: hidden;
}

html.catalog-app.catalog-main-scroll body {
  overflow: hidden;
}

.catalog-nav {
  flex: 0 0 var(--nav-width);
  width: var(--nav-width);
  min-width: var(--nav-width);
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 200;
}

.catalog-nav__brand {
  padding: 1.1rem 1rem 0.85rem;
  border-bottom: 1px solid var(--border);
}

.catalog-nav__brand a {
  text-decoration: none;
  color: inherit;
}

.catalog-nav__title {
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.catalog-nav__title span {
  color: var(--accent);
}

.catalog-nav__subtitle {
  margin-top: 0.2rem;
  font-size: 0.68rem;
  color: var(--text-dim);
  line-height: 1.35;
}

.catalog-nav__links {
  flex: 1;
  padding: 0.65rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  overflow-y: auto;
}

.catalog-nav__link {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.7rem;
  border-radius: 8px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-dim);
  text-decoration: none;
  border: 1px solid transparent;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
}

.catalog-nav__link:hover {
  color: var(--text);
  background: var(--row-hover);
}

.catalog-nav__link.is-active {
  color: var(--text);
  background: var(--selected);
  border-color: rgba(108, 140, 255, 0.35);
}

.catalog-nav__icon {
  width: 1.35rem;
  text-align: center;
  font-size: 1rem;
  flex-shrink: 0;
  opacity: 0.9;
}

.catalog-nav__footer {
  padding: 0.75rem 0.5rem 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.catalog-nav__meta {
  font-size: 0.65rem;
  color: var(--text-dim);
  padding: 0 0.55rem 0.25rem;
  line-height: 1.4;
}

.catalog-nav__meta code {
  font-size: 0.62rem;
  background: var(--panel);
  padding: 0.05rem 0.3rem;
  border-radius: 4px;
}

.catalog-nav__footer a {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-decoration: none;
  padding: 0.35rem 0.55rem;
  border-radius: 6px;
}

.catalog-nav__footer a:hover {
  color: var(--accent);
  background: var(--row-hover);
}

.catalog-nav__theme {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  width: 100%;
  margin: 0.35rem 0 0;
  padding: 0.5rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}

.catalog-nav__theme:hover {
  border-color: rgba(108, 140, 255, 0.45);
  background: var(--row-hover);
}

html.catalog-app.catalog-theme-light .catalog-nav__theme:hover {
  border-color: rgba(47, 91, 221, 0.35);
}

.catalog-nav__theme-icon {
  width: 1.35rem;
  text-align: center;
  font-size: 1rem;
  line-height: 1;
  flex-shrink: 0;
}

.catalog-nav__theme-label {
  flex: 1;
  text-align: left;
}

.catalog-main {
  flex: 1;
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg);
}

html.catalog-app.catalog-main-scroll .catalog-main {
  overflow: auto;
}

/* Full-viewport tool pages (explorer, sync) */
html.catalog-app:not(.catalog-main-scroll) .catalog-main {
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

html.catalog-app:not(.catalog-main-scroll) .catalog-main > .topbar,
html.catalog-app:not(.catalog-main-scroll) .catalog-main > .top,
html.catalog-app:not(.catalog-main-scroll) .catalog-main > .main-tabs,
html.catalog-app:not(.catalog-main-scroll) .catalog-main > .main-layout,
html.catalog-app:not(.catalog-main-scroll) .catalog-main > .layout {
  flex-shrink: 0;
}

html.catalog-app:not(.catalog-main-scroll) .catalog-main > .main-layout,
html.catalog-app:not(.catalog-main-scroll) .catalog-main > .layout {
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

html.catalog-app.catalog-main-scroll .catalog-main > .dst-light-tabs {
  position: sticky;
  top: 0;
  z-index: 50;
}

html.catalog-app.catalog-main-scroll .catalog-main > .app {
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

@media (max-width: 768px) {
  html.catalog-app body {
    flex-direction: column;
    overflow: auto;
  }

  .catalog-nav {
    flex: none;
    width: 100%;
    min-width: 0;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .catalog-nav__links {
    flex-direction: row;
    flex-wrap: wrap;
    padding: 0.5rem;
  }

  .catalog-main {
    overflow: visible;
    min-height: 60vh;
  }
}