/* ============================================
   TWEAKS PANEL
   ============================================ */
.tweaks {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 320px;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  background: var(--cream-50);
  color: var(--ink-900);
  border: 1px solid var(--ink-900);
  border-radius: 2px;
  z-index: 1000;
  font-family: 'Inter Tight', sans-serif;
  box-shadow: 0 30px 60px -20px oklch(0 0 0 / 0.3);
  transform: translateY(calc(100% - 48px));
  transition: transform .4s cubic-bezier(.7,0,.2,1);
}
.tweaks.is-open { transform: translateY(0); }

.tweaks__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid oklch(0.88 0.03 85);
  cursor: pointer;
  background: var(--ink-900);
  color: var(--cream-50);
  user-select: none;
}
.tweaks__title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.tweaks__chevron {
  transition: transform .3s;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
}
.tweaks.is-open .tweaks__chevron { transform: rotate(180deg); }

.tweaks__body {
  padding: 18px;
  display: grid;
  gap: 20px;
}
.tweak-row {
  display: grid;
  gap: 8px;
}
.tweak-row__label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: oklch(0.45 0.01 155);
}
.tweak-row__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tweak-chip {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 7px 10px;
  border: 1px solid oklch(0.85 0.02 155);
  background: transparent;
  color: var(--ink-900);
  border-radius: 2px;
  transition: background .2s, color .2s, border-color .2s;
}
.tweak-chip:hover { border-color: var(--ink-900); }
.tweak-chip.is-active {
  background: var(--ink-900);
  color: var(--cream-50);
  border-color: var(--ink-900);
}
.tweak-swatch {
  width: 28px; height: 28px;
  border-radius: 50%;
  padding: 0;
  border: 2px solid transparent;
  position: relative;
  cursor: pointer;
}
.tweak-swatch.is-active { border-color: var(--ink-900); }
.tweak-swatch::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid oklch(0.85 0.02 155);
}

.tweaks__footer {
  padding: 12px 18px;
  border-top: 1px solid oklch(0.88 0.03 85);
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: oklch(0.5 0.01 155);
  text-align: center;
}