/* ============================================
   TypeBlocks - Panels
   Settings/stats panel innards: melody select, key-accuracy
   heatmap, settings sections. Loads after responsive.css
   (original cascade position). Heatmap rows are scoped to
   .key-heatmap; .key-cap stays unscoped because run-insights
   mini keycaps share it.
   ============================================ */

/* ============================================
   MELODY SELECT
   ============================================ */

.setting-select {
  width: 100%;
  min-height: 44px;
  padding: 10px 14px;
  font-size: 14px;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-surface-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.setting-select:hover {
  border-color: var(--border-accent);
}

/* ============================================
   KEY ACCURACY HEATMAP
   ============================================ */

.key-range-control {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: 3px;
  margin-bottom: 8px;
  background: var(--color-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.key-range-btn {
  min-width: 0;
  min-height: 34px;
  padding: 6px 8px;
  border: 0;
  border-radius: 4px;
  color: var(--color-text-muted);
  background: transparent;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}

.key-range-btn:hover,
.key-range-btn:focus-visible {
  color: var(--color-text);
}

.key-range-btn.active {
  color: var(--color-primary);
  background: var(--color-surface-hover);
  box-shadow: inset 0 0 0 1px var(--border-default);
}

.key-accuracy-summary {
  min-height: 18px;
  margin-bottom: 10px;
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  font-size: 11px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.key-heatmap {
  --key-size: clamp(22px, 7vw, 30px);
  --key-gap: clamp(2px, 1vw, 5px);
  display: flex;
  flex-direction: column;
  gap: var(--key-gap);
  align-items: center;
}

.key-heatmap .key-row {
  display: flex;
  gap: var(--key-gap);
}

.key-cap {
  width: var(--key-size);
  height: var(--key-size);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: clamp(10px, 3vw, 12px);
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  background: var(--color-surface-elevated);
  border: 1px solid var(--border-default);
  border-bottom-width: 2px;
  border-radius: 6px;
  cursor: default;
}

.key-cap.key-good {
  background: rgba(0, 255, 136, 0.14);
  border-color: rgba(0, 255, 136, 0.4);
  color: var(--color-success);
}

.key-cap.key-warn {
  background: rgba(255, 204, 0, 0.14);
  border-color: rgba(255, 204, 0, 0.4);
  color: var(--color-warning);
}

.key-cap.key-bad {
  background: rgba(255, 107, 107, 0.14);
  border-color: rgba(255, 107, 107, 0.4);
  color: var(--color-error);
}

.heatmap-legend {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 12px;
  font-size: 11px;
  color: var(--color-text-secondary);
}

.key-swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--color-surface-elevated);
  border: 1px solid var(--border-default);
}

.key-swatch.key-good {
  background: rgba(0, 255, 136, 0.3);
  border-color: rgba(0, 255, 136, 0.5);
}

.key-swatch.key-warn {
  background: rgba(255, 204, 0, 0.3);
  border-color: rgba(255, 204, 0, 0.5);
}

.key-swatch.key-bad {
  background: rgba(255, 107, 107, 0.3);
  border-color: rgba(255, 107, 107, 0.5);
}

/* ============================================
   SETTINGS SECTIONS
   ============================================ */

.settings-scroll {
  overflow-y: auto;
}

.settings-sticky-header {
  position: sticky;
  top: -28px;
  z-index: 4;
  margin: -28px -32px 18px;
  padding: 28px 32px 12px;
  background: color-mix(in srgb, var(--color-surface) 96%, transparent);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.16);
  backdrop-filter: blur(14px);
}

#settings-panel .settings-sticky-header .panel-header {
  position: static;
  margin-bottom: 10px;
  padding-bottom: 10px;
}

.settings-section-nav {
  display: flex;
  gap: 4px;
  padding: 3px;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scrollbar-width: none;
  background: var(--color-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.settings-section-nav::-webkit-scrollbar {
  display: none;
}

.settings-section-link {
  flex: 1 0 auto;
  min-width: 0;
  min-height: 34px;
  padding: 6px 10px;
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 5px;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: color var(--transition-fast), background var(--transition-fast),
    border-color var(--transition-fast);
}

.settings-section-link:hover,
.settings-section-link:focus-visible {
  color: var(--color-text);
  background: var(--color-surface-hover);
}

.settings-section-link.active {
  color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 10%, var(--color-surface-hover));
  border-color: var(--border-accent);
}

.settings-section-title {
  scroll-margin-top: 120px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-primary);
  margin: 22px 0 14px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-subtle);
}

.settings-section-title:first-of-type {
  margin-top: 0;
}

@media (max-width: 650px) {
  .settings-sticky-header {
    top: -22px;
    margin: -22px -18px 16px;
    padding: 22px 18px 10px;
  }

  .settings-section-nav {
    gap: 2px;
  }

  .settings-section-link {
    min-height: 32px;
    padding: 5px 8px;
    font-size: 10px;
  }

  .settings-section-title {
    scroll-margin-top: 108px;
  }
}