/* ---- Body Layout ----------------------------------------------------- */
body { display: flex; overflow: hidden; min-width: 0; }

/* ---- Mobile Showcase Shell ------------------------------------------- */
.mobile-showcase-shell { display: none; }
.mobile-showcase-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
.mobile-showcase-title { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.mobile-showcase-brand { color: var(--text); font-size: var(--text-base); font-weight: 700; line-height: var(--leading-tight); }
.mobile-showcase-version { color: var(--muted); font-size: var(--text-2xs); font-weight: 600; letter-spacing: var(--tracking-wide); text-transform: uppercase; }
.mobile-control-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4) var(--space-3);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.mobile-select-control,
.mobile-mode-control {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: var(--space-3);
}
.mobile-select-control label,
.mobile-control-label {
  color: var(--muted);
  font-size: var(--text-2xs);
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}
.mobile-select-control select {
  width: 100%;
  min-width: 0;
  height: 36px;
  padding: 0 var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--card);
  color: var(--text);
  font: inherit;
  font-size: var(--text-sm);
}
.mobile-mode-control .mode-toggle-group {
  margin-bottom: 0;
  background: var(--surface);
  border: 1px solid var(--border);
}
.mobile-mode-control .mode-toggle-group button {
  color: var(--muted);
}
.mobile-mode-control .mode-toggle-group button.active {
  color: var(--text);
  background: var(--card);
}
.mobile-select-control select:focus-visible,
.mobile-mode-control button:focus-visible {
  outline: var(--focus-ring-width) solid var(--focus-ring);
  outline-offset: var(--focus-ring-offset);
}

/* ---- Sidebar ---------------------------------------------------------- */
.showcase-sidebar {
  width: 240px; min-width: 240px; height: 100vh; overflow-y: auto;
  background: var(--sidebar); color: var(--on-sidebar);
  display: flex; flex-direction: column; z-index: 100;
  border-right: 1px solid rgba(255,255,255,0.06);
}
.sidebar-brand { padding: 20px 20px 16px; font-size: var(--text-lg); font-weight: 700; color: var(--on-sidebar-active); letter-spacing: var(--tracking-tight); border-bottom: 1px solid rgba(255,255,255,0.08); }
.sidebar-nav { flex: 1; padding: 8px 0; overflow-y: auto; }
.sidebar-nav a { display: flex; align-items: center; gap: 8px; padding: 7px 20px; font-size: var(--text-sm); color: var(--on-sidebar); transition: background 120ms ease, color 120ms ease; cursor: pointer; text-decoration: none; border-left: 2px solid transparent; }
.sidebar-nav a:hover { background: rgba(255,255,255,0.04); color: var(--on-sidebar-active); }
.sidebar-nav a.active { color: var(--on-sidebar-active); border-left-color: var(--accent); background: rgba(255,255,255,0.06); }
.sidebar-nav .nav-section { padding: 16px 20px 4px; font-size: var(--text-2xs); font-weight: 600; letter-spacing: var(--tracking-widest); text-transform: uppercase; color: var(--on-sidebar); opacity: 0.5; }

/* ---- Sidebar Theme Picker --------------------------------------------- */
.sidebar-footer { padding: 12px; border-top: 1px solid rgba(255,255,255,0.08); }
.theme-picker-label { font-size: var(--text-2xs); font-weight: 600; letter-spacing: var(--tracking-widest); text-transform: uppercase; color: var(--on-sidebar); opacity: 0.5; display: block; margin-bottom: 8px; }
.mode-toggle-group { display: flex; gap: 2px; background: rgba(255,255,255,0.06); border-radius: var(--radius-md); padding: 2px; margin-bottom: 12px; }
.mode-toggle-group button { flex: 1; padding: 4px 8px; border-radius: var(--radius-sm); border: none; font-size: var(--text-2xs); font-weight: 600; text-align: center; transition: background 120ms ease, color 120ms ease; color: var(--on-sidebar); background: transparent; cursor: pointer; }
.mode-toggle-group button.active { background: var(--card); color: var(--text); box-shadow: var(--shadow-soft); }
.palette-list { display: flex; flex-direction: column; gap: 4px; }
.palette-list button { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: var(--radius-md); border: 1px solid transparent; font-size: var(--text-2xs); font-weight: 500; text-align: left; width: 100%; color: var(--on-sidebar); background: transparent; cursor: pointer; transition: border-color 120ms ease; }
.palette-list button:hover { background: rgba(255,255,255,0.04); }
.palette-list button.active { border-color: var(--accent); background: rgba(255,255,255,0.06); }
.palette-preview { display: flex; width: 36px; height: 22px; border-radius: 2px; overflow: hidden; flex-shrink: 0; border: 1px solid rgba(255,255,255,0.1); }
.palette-preview-bar { display: block; height: 100%; flex-shrink: 0; }

/* ---- Main Content Area ----------------------------------------------- */
.main-content { flex: 1; overflow-y: auto; padding: var(--space-6) 48px; background: var(--bg); min-width: 0; }
.showcase-header { margin-bottom: var(--space-6); }
.showcase-header h1 { font-size: var(--text-2xl); font-weight: 700; letter-spacing: var(--tracking-tight); margin-bottom: 4px; }
.showcase-header p { font-size: var(--text-base); color: var(--muted); }

/* ---- Section Titles -------------------------------------------------- */
.section-anchor { scroll-margin-top: 24px; }
.section-title { font-size: var(--text-xl); font-weight: 700; letter-spacing: var(--tracking-tight); margin: var(--space-7) 0 var(--space-4); padding-bottom: var(--space-2); border-bottom: 1px solid var(--border); }
.section-title:first-of-type { margin-top: 0; }

/* ---- Component Group Cards ------------------------------------------- */
.comp-group { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-lg); margin-bottom: var(--space-5); overflow: hidden; }
.comp-group-header { padding: var(--space-3) var(--space-4); border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.comp-group-header h3 { font-size: var(--text-base); font-weight: 600; }
.comp-group-tag { font-size: var(--text-2xs); font-weight: 600; letter-spacing: var(--tracking-wide); text-transform: uppercase; color: var(--muted); background: var(--surface); padding: 2px 8px; border-radius: var(--radius-full); }
.comp-group-desc { font-size: var(--text-xs); color: var(--muted); padding: var(--space-2) var(--space-4) 0; }
.comp-group-body { padding: var(--space-4); display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }
.comp-group-body.col { flex-direction: column; align-items: stretch; }
.comp-group-body.gap-lg { gap: var(--space-5); }

/* ---- Token Swatches -------------------------------------------------- */
.token-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: var(--space-3); padding: var(--space-4); }
.token-swatch { padding: var(--space-2); border-radius: var(--radius-md); border: 1px solid var(--border); background: var(--surface); }
.token-swatch-color { width: 100%; height: 40px; border-radius: var(--radius-sm); border: 1px solid var(--border); margin-bottom: 4px; }
.token-swatch-name { font-size: var(--text-xs); font-weight: 600; }
.token-swatch-value { font-size: var(--text-2xs); color: var(--muted); font-family: monospace; word-break: break-all; }

/* ---- Icon Grid ------------------------------------------------------- */
.icon-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); gap: var(--space-2); padding: var(--space-4); }
.icon-cell { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: var(--space-3); border-radius: var(--radius-md); border: 1px solid var(--border); background: var(--surface); }
.icon-cell svg { width: 22px; height: 22px; color: var(--text); }
.icon-cell-name { font-size: var(--text-2xs); color: var(--muted); text-align: center; }

/* ---- Button Showcase ------------------------------------------------- */
.btn-row { display: flex; flex-wrap: wrap; gap: var(--space-2); align-items: center; }

/* ---- Chip Row -------------------------------------------------------- */
.chip-row { display: flex; flex-wrap: wrap; gap: var(--space-2); align-items: center; }

/* ---- Sidebar alt for showcase inlay -------------------------------- */
.sidebar-demo { width: 220px; min-height: 200px; background: var(--sidebar); color: var(--on-sidebar); border-radius: var(--radius-md); overflow: hidden; flex-shrink: 0; display: flex; flex-direction: column; }
.sidebar-demo .sd-brand { padding: 12px 16px; font-size: var(--text-sm); font-weight: 700; color: var(--on-sidebar-active); border-bottom: 1px solid rgba(255,255,255,0.08); }
.sidebar-demo .sd-item { padding: 6px 16px; font-size: var(--text-xs); color: var(--on-sidebar); border-left: 2px solid transparent; }
.sidebar-demo .sd-item.sel { color: var(--on-sidebar-active); border-left-color: var(--accent); background: rgba(255,255,255,0.06); }

/* ---- Topbar demo ---------------------------------------------------- */
.topbar-demo { height: 44px; background: var(--card); border-bottom: 1px solid var(--border); display: flex; align-items: center; padding: 0 var(--space-4); gap: var(--space-3); border-radius: var(--radius-md) var(--radius-md) 0 0; flex-shrink: 0; }
.topbar-demo-title { font-size: var(--text-sm); font-weight: 600; }

/* ---- Table demo ------------------------------------------------------ */
.table-demo { width: 100%; border-collapse: collapse; font-size: var(--text-sm); }
.table-demo th { text-align: left; padding: var(--space-2) var(--space-3); font-size: var(--text-xs); font-weight: 600; color: var(--muted); letter-spacing: var(--tracking-wide); text-transform: uppercase; border-bottom: 2px solid var(--border); white-space: nowrap; }
.table-demo td { padding: var(--space-2) var(--space-3); border-bottom: 1px solid var(--border); white-space: nowrap; }
.table-demo tr:hover td { background: var(--surface); }

/* ---- Toast demo ----------------------------------------------------- */
.toast-demo { position: relative; min-height: 80px; display: flex; flex-direction: column; gap: var(--space-2); padding: var(--space-3); background: var(--surface); border-radius: var(--radius-md); }

/* ---- Tree demo ------------------------------------------------------ */
.tree-demo { font-size: var(--text-sm); display: flex; flex-direction: column; gap: 2px; }
.tree-demo .tree-item { padding: 3px 4px 3px 8px; border-radius: var(--radius-sm); cursor: default; }
.tree-demo .tree-item:hover { background: var(--surface); }
.tree-demo .tree-level-1 { padding-left: 24px; }
.tree-demo .tree-level-2 { padding-left: 40px; }

/* ---- API Surface ---------------------------------------------------- */
.api-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--space-3); padding: var(--space-4); }
.api-card { border: 1px solid var(--border); background: var(--surface); border-radius: var(--radius-md); padding: var(--space-3); display: flex; flex-direction: column; gap: var(--space-2); min-width: 0; }
.api-card h4 { font-size: var(--text-sm); font-weight: 700; color: var(--text); }
.api-card p { font-size: var(--text-xs); color: var(--muted); }
.pill-list { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.api-pill { display: inline-flex; align-items: center; max-width: 100%; padding: 3px 8px; border: 1px solid var(--border); border-radius: var(--radius-full); background: var(--card); color: var(--text); font-family: var(--font-mono), Menlo, Consolas, monospace; font-size: var(--text-2xs); white-space: nowrap; }
.api-pill.subtle { color: var(--muted); background: transparent; }
.asset-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--space-2); }
.asset-item { display: flex; flex-direction: column; gap: 2px; padding: var(--space-2); border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--surface); min-width: 0; }
.asset-path { font-family: var(--font-mono), Menlo, Consolas, monospace; font-size: var(--text-2xs); color: var(--accent); word-break: break-all; }
.asset-note { font-size: var(--text-2xs); color: var(--muted); }

/* ---- Misc ------------------------------------------------------------ */
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.w-full { width: 100%; }
.flex-wrap { display: flex; flex-wrap: wrap; gap: var(--space-2); align-items: center; }
.flex-col { display: flex; flex-direction: column; gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.muted-dot { display: inline-block; width: 4px; height: 4px; border-radius: 50%; background: var(--muted); margin: 0 6px; vertical-align: middle; }

@media (max-width: 768px) {
  :root { --mobile-showcase-offset: 152px; }
  body { display: block; min-height: 100vh; overflow-y: auto; }
  .mobile-showcase-shell {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 200;
    background: var(--bg);
  }
  .showcase-sidebar { display: none; }
  .main-content {
    width: 100%;
    min-width: 0;
    overflow: visible;
    padding: calc(var(--mobile-showcase-offset) + var(--space-4)) var(--space-4) var(--space-4);
  }
  .showcase-header { margin-bottom: var(--space-5); }
  .showcase-header h1 { font-size: var(--text-xl); }
  .showcase-header p { font-size: var(--text-sm); }
  .section-anchor { scroll-margin-top: calc(var(--mobile-showcase-offset) + var(--space-4)); }
  .section-title { margin: var(--space-6) 0 var(--space-3); }
  .comp-group {
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
  }
  .comp-group-header {
    align-items: flex-start;
    gap: var(--space-2);
    padding: var(--space-3);
  }
  .comp-group-header h3,
  .comp-group-tag { min-width: 0; }
  .comp-group-body {
    align-items: stretch;
    gap: var(--space-2);
    overflow-x: auto;
    padding: var(--space-3);
  }
  .comp-group-body > * { max-width: 100%; }
  .token-grid,
  .api-grid,
  .asset-list {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-2);
    padding: var(--space-3);
  }
  .icon-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: var(--space-3);
  }
  .api-card,
  .asset-item,
  .token-swatch { min-width: 0; }
  .api-pill {
    white-space: normal;
    overflow-wrap: anywhere;
  }
  .sidebar-demo {
    width: 100%;
    min-width: 0;
  }
  .table-demo { min-width: 520px; }
  .topbar-demo { min-width: 0; }
  .topbar-demo-title {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  code,
  .mono { overflow-wrap: anywhere; }
}

@media (max-width: 420px) {
  .main-content { padding: calc(var(--mobile-showcase-offset) + var(--space-3)) var(--space-3) var(--space-3); }
  .mobile-showcase-bar,
  .mobile-control-grid { padding-left: var(--space-3); padding-right: var(--space-3); }
  .icon-grid { grid-template-columns: minmax(0, 1fr); }
}