/* ── Font select dropdown ── */
.cfg-select {
  font-family: var(--font-sans); font-size: 13px;
  padding: 7px 10px; border-radius: var(--radius-md);
  border: 1px solid var(--surface-border-strong);
  background: var(--surface-input); color: var(--text-primary);
  cursor: pointer; outline: none; width: 100%;
  transition: border-color 0.15s, box-shadow 0.15s;
  appearance: auto;
}
.cfg-select:focus { border-color: var(--color-interactive-text); box-shadow: 0 0 0 3px var(--input-focus-ring); }

/* ── Color scale strip (12-step) ── */
.cs-scale {
  display: flex; gap: 3px; flex-wrap: nowrap;
}
.cs-chip {
  flex: 1; min-width: 0;
  height: 52px;
  border-radius: var(--radius-sm);
  display: flex; flex-direction: column;
  justify-content: flex-end;
  padding: 4px 5px;
  position: relative;
  overflow: hidden;
}
.cs-chip-num {
  font-size: 9px; font-weight: 600;
  font-family: var(--font-mono);
  color: rgba(0,0,0,0.6);
  line-height: 1;
  background: rgba(255,255,255,0.65);
  padding: 1px 4px;
  border-radius: 3px;
}
.cs-scale-label {
  display: flex; justify-content: space-between;
  margin-top: var(--space-2);
  font-size: 10px; color: var(--text-tertiary);
  font-family: var(--font-mono);
}

/* ── Tier architecture callouts ── */
.arch-tiers {
  display: flex; flex-direction: column; gap: 0;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.arch-tier {
  display: grid; grid-template-columns: 110px 1fr 1fr;
  align-items: stretch;
  border-bottom: 1px solid var(--surface-border);
}
.arch-tier:last-child { border-bottom: none; }
.arch-tier-label {
  padding: var(--space-3) var(--space-4);
  background: var(--surface-subtle);
  font-size: 11px; font-weight: 600;
  color: var(--text-secondary);
  border-right: 1px solid var(--surface-border);
  display: flex; flex-direction: column; justify-content: center; gap: 2px;
}
.arch-tier-token {
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-mono); font-size: 11px;
  color: var(--color-interactive-text);
  border-right: 1px solid var(--surface-border);
  display: flex; align-items: center;
}
.arch-tier-desc {
  padding: var(--space-3) var(--space-4);
  font-size: 12px; color: var(--text-secondary);
  display: flex; align-items: center;
}

/* ── Token reference table ── */
.token-ref-table {
  width: 100%; border-collapse: collapse;
  font-size: 12px;
}
.token-ref-table thead th {
  text-align: left;
  font-size: 10px; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--text-tertiary);
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--surface-border);
}
.token-ref-table tbody tr {
  border-bottom: 1px solid var(--surface-border);
}
.token-ref-table tbody tr:last-child { border-bottom: none; }
.token-ref-table td {
  padding: 10px var(--space-3);
  vertical-align: middle;
}
.tok-cell {
  display: flex; align-items: center; gap: var(--space-2);
}
.tok-dot {
  width: 14px; height: 14px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  border: 1px solid var(--surface-border);
}
.tok-name {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--color-interactive-text);
  white-space: nowrap;
}
.tok-desc { color: var(--text-secondary); }
.tok-val {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--text-tertiary); white-space: nowrap;
}
.tok-val code { font-size: 10px; color: var(--text-tertiary); }
.tok-mode-light { display: inline-block; }
.tok-mode-dark  { display: inline-block; }

/* ── Usage callout ── */
.usage-callout {
  background: var(--surface-subtle);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  margin-bottom: var(--space-6);
}
.usage-callout-title {
  font-size: 12px; font-weight: 600; color: var(--text-primary);
  margin-bottom: var(--space-3);
}
.usage-callout pre {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--text-secondary); line-height: 1.7;
  margin: 0; white-space: pre-wrap;
}
.usage-callout .uc-good { color: var(--color-success); }
.usage-callout .uc-bad  { color: var(--color-danger); }
.usage-callout .uc-comment { color: var(--text-tertiary); }

/* ── Color swatches ── */
.swatch-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: var(--space-3); }
.swatch {
  flex: 1; min-width: 120px;
  border-radius: var(--radius-md); overflow: hidden;
  border: 1px solid var(--surface-border);
}
.swatch-color { height: 72px; }
.swatch-info  { padding: 8px 10px; background: var(--surface-bg); }
.swatch-name  { font-size: 11px; font-weight: 600; color: var(--text-primary); white-space: nowrap; }
.swatch-val   { font-size: 10px; font-family: var(--font-mono); color: var(--text-tertiary); margin-top: 2px; white-space: nowrap; }
.swatch-hex   { font-size: 10px; font-family: var(--font-mono); color: var(--color-interactive-text); margin-top: 1px; white-space: nowrap; }

.swatch-row   { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.swatch-group { margin-bottom: var(--space-6); }
.swatch-group-title {
  font-size: 11px; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--text-tertiary);
  margin-bottom: var(--space-3);
}

/* ── Type scale ── */
.type-scale-row {
  display: flex; align-items: baseline; gap: var(--space-6);
  padding: var(--space-3) 0; border-bottom: 1px solid var(--surface-border);
}
.type-scale-row:last-child { border-bottom: none; }
.type-scale-meta { width: 140px; flex-shrink: 0; }
.type-scale-token { font-size: 11px; font-family: var(--font-mono); color: var(--color-interactive-text); }
.type-scale-size  { font-size: 11px; color: var(--text-tertiary); margin-top: 2px; }
.type-scale-sample { color: var(--text-primary); line-height: 1.2; }

/* ── Weight row ── */
.weight-row { display: flex; align-items: center; gap: var(--space-6); padding: var(--space-3) 0; border-bottom: 1px solid var(--surface-border); }
.weight-row:last-child { border-bottom: none; }
.weight-meta { width: 140px; flex-shrink: 0; }
.weight-label { font-size: 11px; font-family: var(--font-mono); color: var(--color-interactive-text); }
.weight-num   { font-size: 11px; color: var(--text-tertiary); margin-top: 2px; }
.weight-sample { font-size: 20px; color: var(--text-primary); }

/* ── Spacing scale ── */
.space-row { display: flex; align-items: center; gap: var(--space-4); padding: var(--space-2) 0; }
.space-meta { width: 160px; flex-shrink: 0; display: flex; align-items: baseline; gap: var(--space-3); }
.space-token { font-size: 11px; font-family: var(--font-mono); color: var(--color-interactive-text); }
.space-val   { font-size: 11px; color: var(--text-tertiary); }
.space-bar   { height: 20px; background: var(--color-interactive); border-radius: var(--radius-sm); opacity: 0.7; transition: background 0.3s; }

/* ── Icon grid ── */
.icon-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); gap: var(--space-2); }
.icon-item {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: var(--space-3); border-radius: var(--radius-md);
  border: 1px solid var(--surface-border);
  cursor: pointer; transition: all 0.15s;
  background: var(--surface-bg);
}
.icon-item:hover { border-color: var(--color-interactive-text); background: var(--surface-subtle); }
.icon-item .ti   { font-size: 20px; color: var(--text-secondary); }
.icon-item:hover .ti { color: var(--color-interactive-text); }
.icon-name { font-size: 10px; color: var(--text-tertiary); text-align: center; word-break: break-all; }

/* ── Demo surface ── */
.demo-surface {
  background: var(--surface-subtle);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center;
}
.demo-surface.col    { flex-direction: column; align-items: flex-start; }
.demo-surface.center { justify-content: center; }

/* ── Usage table ── */
.usage-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.usage-table th {
  text-align: left; padding: var(--space-2) var(--space-4);
  font-size: 11px; font-weight: 600; letter-spacing: 0.05em;
  text-transform: uppercase; color: var(--text-tertiary);
  border-bottom: 1px solid var(--surface-border);
}
.usage-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--surface-border);
  vertical-align: top; color: var(--text-secondary);
}
.usage-table tr:last-child td { border-bottom: none; }
.usage-table td:first-child { color: var(--text-primary); font-family: var(--font-mono); font-size: 12px; }
.usage-table td code {
  font-family: var(--font-mono); font-size: 11px;
  background: var(--surface-overlay);
  padding: 1px 5px; border-radius: var(--radius-sm);
  color: var(--color-interactive-text);
}

/* ── Token pill ── */
.token-pill {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11px; font-family: var(--font-mono);
  background: var(--surface-overlay); border: 1px solid var(--surface-border);
  padding: 2px 8px; border-radius: var(--radius-full); color: var(--text-secondary);
}
.token-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }

/* ── Configurator ── */
.config-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-5); }

.config-card {
  background: var(--surface-subtle); border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg); padding: var(--space-5);
}
.config-card-title { font-size: 15px; font-weight: 600; color: var(--text-primary); letter-spacing: -0.01em; }
.config-section-full { grid-column: 1 / -1; }

/* header row */
.cfg-hd { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--space-5); }
.cfg-new-btn {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 12px; font-weight: 500; padding: 5px 12px;
  border-radius: var(--radius-md); border: 1px solid var(--surface-border-strong);
  background: var(--surface-bg); color: var(--text-secondary);
  cursor: pointer; transition: all 0.15s;
}
.cfg-new-btn:hover { border-color: var(--color-interactive-text); color: var(--color-interactive-text); }

.cfg-reset-btn {
  all: unset;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: color 120ms ease, background 120ms ease;
  -webkit-font-smoothing: antialiased;
}
.cfg-reset-btn:hover { color: var(--text-secondary); background: var(--surface-overlay); }

/* theme cards row */
.theme-cards {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: var(--space-3);
  padding-bottom: 2px;
}

.theme-card {
  position: relative;
  min-width: 0;
  border-radius: var(--radius-lg);
  background: var(--surface-bg);
  cursor: pointer;
  transition: box-shadow 0.15s;
  overflow: hidden;
  outline: none;
}
.theme-card:hover   { box-shadow: var(--elev-1); }
.theme-card.selected { box-shadow: var(--elev-2); }

.theme-palette {
  display: flex; height: 48px;
}
.theme-swatch { flex: 1; }

.theme-card-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding: 7px 10px 7px;
  gap: 4px;
}
.theme-card-name {
  font-size: 12px; font-weight: 500; color: var(--text-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  font-family: var(--font-sans); -webkit-font-smoothing: antialiased;
}
.theme-name-input {
  all: unset; width: 100%;
  font-size: 12px; font-weight: 500; color: var(--text-primary);
  font-family: var(--font-sans); -webkit-font-smoothing: antialiased;
  border-bottom: 1px dashed var(--surface-border-strong);
}
.theme-name-input:focus { border-bottom-color: var(--color-interactive-text); outline: none; }

.theme-applied-check {
  position: absolute; top: 6px; right: 6px;
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--color-success); color: var(--surface-bg);
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; pointer-events: none;
  box-shadow: 0 0 0 2px var(--surface-bg), 0 1px 3px rgba(0,0,0,0.2);
}

/* 12-step neutral scale strip */
.cfg-scale-strip { margin-top: var(--space-4); }
.cfg-scale-label {
  font-size: 10px; font-weight: 600; letter-spacing: 0.07em;
  text-transform: uppercase; color: var(--text-tertiary);
  margin-bottom: var(--space-2);
}
.cfg-scale-chips { display: flex; gap: 4px; }
.cfg-scale-chip {
  flex: 1; height: 40px; border-radius: var(--radius-sm);
  border: 1px solid var(--surface-border);
  position: relative; display: flex;
  align-items: flex-end; justify-content: center;
  padding-bottom: 3px;
  transition: background 0.3s;
}
.cfg-scale-num {
  font-size: 9px; font-family: var(--font-mono);
  color: transparent; mix-blend-mode: difference;
  filter: invert(1);
  line-height: 1; pointer-events: none;
}

.theme-delete-btn {
  all: unset;
  display: flex; align-items: center; justify-content: center;
  width: 20px; height: 20px; border-radius: var(--radius-sm);
  color: var(--text-tertiary); font-size: 13px;
  cursor: pointer; flex-shrink: 0;
  transition: color 120ms ease, background 120ms ease;
}
.theme-delete-btn:hover { color: var(--color-danger); background: var(--color-danger-subtle); }

/* separator */
.cfg-divider { height: 1px; background: var(--surface-border); margin: var(--space-4) 0; }

/* colors + apply row */
.cfg-colors-row {
  display: flex; align-items: flex-end; gap: var(--space-3); flex-wrap: wrap;
}
.cfg-color-block { display: flex; flex-direction: column; gap: var(--space-2); flex: 1; min-width: 0; }
.cfg-color-label { font-size: 11px; font-weight: 500; color: var(--text-secondary); }

.cfg-color-wrap {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}
.cfg-color-wrap::before {
  content: '▾';
  position: absolute;
  bottom: 6px;
  right: 6px;
  font-size: 16px;
  line-height: 1;
  background: rgba(0,0,0,0.15);
  color: rgba(255,255,255,0.9);
  padding: 0px 6px 2px;
  border-radius: 4px;
  pointer-events: none;
  z-index: 1;
  transition: background 120ms ease;
}
.cfg-color-wrap:hover::before {
  background: rgba(0,0,0,0.28);
}
.cfg-color-wrap.outlined::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--surface-border);
  pointer-events: none;
}

input[type="color"].color-picker {
  display: block; width: 100%; height: 72px;
  border: none; border-radius: 0;
  padding: 0; cursor: pointer;
  background: none;
  -webkit-appearance: none;
  appearance: none;
}
input[type="color"].color-picker::-webkit-color-swatch-wrapper { padding: 0; }
input[type="color"].color-picker::-webkit-color-swatch { border: none; border-radius: 0; }
input[type="color"].color-picker::-moz-color-swatch { border: none; border-radius: 0; }
input[type="color"].color-picker:disabled { opacity: 1; cursor: not-allowed; }
.cfg-select:disabled { opacity: 0.45; cursor: not-allowed; pointer-events: none; }

.cfg-strip-wrap { flex: 1; min-width: 120px; }
.config-preview-strip { display: flex; gap: 6px; }
.config-chip { flex: 1; height: 36px; border-radius: var(--radius-md); border: 1px solid var(--surface-border); transition: background 0.3s; }

.cfg-apply-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-4);
}

.cfg-apply-site-btn {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 500; padding: 9px 20px;
  border-radius: var(--radius-md); border: none; cursor: pointer;
  background: var(--color-interactive); color: var(--btn-primary-text);
  transition: filter 0.15s, transform 0.1s, opacity 0.2s;
  white-space: nowrap; flex-shrink: 0;
}
.cfg-apply-site-btn:not(:disabled):hover { filter: brightness(1.1); transform: translateY(-1px); }
.cfg-apply-site-btn:disabled { cursor: not-allowed; }

/* typography row */
.cfg-type-row { display: flex; gap: var(--space-5); flex-wrap: wrap; }
.cfg-type-field { display: flex; flex-direction: column; gap: 6px; flex: 1; min-width: 160px; }

/* preview pill label */
.cfg-preview-pill {
  font-size: 11px; font-weight: 500; padding: 3px 9px;
  border-radius: 9999px; background: var(--surface-overlay);
  border: 1px solid var(--surface-border); color: var(--text-tertiary);
  transition: color 0.2s;
}

.preview-live {
  padding: 0;
}

.preview-comp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.preview-comp-item {
  position: relative;
  height: 0;
  padding-bottom: 100%;
  overflow: hidden;
}
.preview-comp-item > * {
  position: absolute;
  inset: 0;
}

.config-apply-btn {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 500; padding: 9px 20px;
  border-radius: var(--radius-md); border: none; cursor: pointer;
  background: var(--color-interactive); color: var(--btn-primary-text); transition: all 0.15s;
}
.config-apply-btn:hover { filter: brightness(1.1); transform: translateY(-1px); }
.config-export-row { display: flex; gap: var(--space-3); flex-wrap: wrap; margin-top: var(--space-5); }

.token-output {
  font-family: var(--font-mono); font-size: 11px;
  background: var(--surface-overlay); border: 1px solid var(--surface-border);
  border-radius: var(--radius-md); padding: var(--space-4);
  color: var(--text-secondary); white-space: pre; overflow-x: auto;
  line-height: 1.8; max-height: 260px; overflow-y: auto;
}
.t-key { color: var(--color-interactive-text); }
.t-val { color: var(--color-accent-text); }
.t-str { color: var(--color-warning-text); }
.t-cmt { color: var(--text-tertiary); }

/* ── Home page ── */
.home-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: var(--space-4); margin-top: var(--space-6); }
@media (max-width: 680px) { .home-grid { grid-template-columns: 1fr 1fr; } }

.home-card {
  background: var(--surface-subtle); border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg); padding: var(--space-5);
  cursor: pointer; transition: all 0.15s;
}
.home-card:hover { border-color: var(--color-interactive-text); box-shadow: var(--elev-1); transform: translateY(-1px); }
.home-card-icon  { font-size: 20px; color: var(--color-interactive-text); margin-bottom: var(--space-3); }
.home-card-title { font-size: 13px; font-weight: 600; margin-bottom: 4px; }
.home-card-desc  { font-size: 12px; color: var(--text-secondary); line-height: 1.5; }

.home-stat-row { display: flex; gap: var(--space-4); margin-top: var(--space-6); flex-wrap: wrap; }
.home-stat {
  background: var(--surface-subtle); border: 1px solid var(--surface-border);
  border-radius: var(--radius-md); padding: var(--space-4) var(--space-5);
  flex: 1; min-width: 120px;
}
.home-stat-num   { font-size: 24px; font-weight: 600; letter-spacing: -0.03em; color: var(--color-interactive-text); }
.home-stat-label { font-size: 11px; color: var(--text-tertiary); margin-top: 2px; }

/* ── Configurator tabs ── */
.cfg-tabs-header {
  display: flex; gap: 4px;
  border-bottom: 1px solid var(--surface-border);
  margin-bottom: var(--space-5);
  padding-bottom: 0;
}
.cfg-tab {
  all: unset; padding: 8px 16px;
  font-family: var(--font-sans); font-size: 13px; font-weight: 500;
  color: var(--text-tertiary); cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.15s, border-color 0.15s;
}
.cfg-tab:hover { color: var(--text-secondary); }
.cfg-tab.active { color: var(--color-interactive-text); border-bottom-color: var(--color-interactive-text); }

.cfg-tab-panel { display: none; }
.cfg-tab-panel.active { display: block; }

/* ── Preview sections ── */
.preview-section { margin-bottom: var(--space-5); }
.preview-section:last-child { margin-bottom: 0; }
.preview-row {
  display: flex; flex-wrap: wrap;
  gap: var(--space-3); align-items: center;
  margin-bottom: var(--space-3);
}
.preview-row:last-child { margin-bottom: 0; }

/* ── Data viz palette (Color System page) ── */
.dv-panels {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: var(--space-4); margin-bottom: var(--space-6);
}
@media (max-width: 680px) { .dv-panels { grid-template-columns: 1fr; } }

.dv-panel { border-radius: var(--radius-lg); padding: var(--space-5); }
.dv-panel-light { background: #f4f5f7; border: 1px solid #dddfe3; }
.dv-panel-dark  { background: #13141f; border: 1px solid #2a2b3a; }

.dv-panel-label {
  font-size: 10px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; margin-bottom: var(--space-4);
}
.dv-panel-light .dv-panel-label { color: #888; }
.dv-panel-dark  .dv-panel-label { color: rgba(255,255,255,0.38); }

.dv-swatch-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: var(--space-3); }

.dv-swatch-color {
  height: 56px; border-radius: var(--radius-md); margin-bottom: 6px;
}
.dv-swatch-name {
  font-size: 11px; font-weight: 600;
  font-family: var(--font-sans); -webkit-font-smoothing: antialiased;
}
.dv-swatch-hex { font-size: 10px; font-family: var(--font-mono); margin-top: 1px; }

.dv-panel-light .dv-swatch-name { color: #1a1a2e; }
.dv-panel-light .dv-swatch-hex  { color: #888; }
.dv-panel-dark  .dv-swatch-name { color: rgba(255,255,255,0.88); }
.dv-panel-dark  .dv-swatch-hex  { color: rgba(255,255,255,0.4); }

.dv-token-table { min-width: 680px; }
.dv-token-table th, .dv-token-table td { white-space: nowrap; }
.dv-token-table td:first-child { color: var(--text-primary); font-size: 12px; font-weight: 500; }

.dv-bar-previews {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: var(--space-4); margin-top: var(--space-4);
}
@media (max-width: 680px) { .dv-bar-previews { grid-template-columns: 1fr; } }

.dv-bar-preview { border-radius: var(--radius-lg); padding: var(--space-4) var(--space-5) var(--space-3); }
.dv-bar-preview-light { background: #f4f5f7; border: 1px solid #dddfe3; }
.dv-bar-preview-dark  { background: #13141f; border: 1px solid #2a2b3a; }
.dv-bar-preview-label {
  font-size: 10px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; margin-bottom: var(--space-3);
}
.dv-bar-preview-light .dv-bar-preview-label { color: #888; }
.dv-bar-preview-dark  .dv-bar-preview-label { color: rgba(255,255,255,0.38); }