/* Tweaks panel */
.tweaks-panel {
  position: fixed; bottom: 20px; right: 20px; z-index: 300;
  width: 320px; max-height: calc(100vh - 40px);
  background: rgba(14,14,18,0.95); backdrop-filter: blur(20px) saturate(140%);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 16px;
  color: var(--fg);
  font-family: 'Space Grotesk', sans-serif;
  box-shadow: 0 30px 80px -20px rgba(0,0,0,0.7);
  display: none;
  flex-direction: column;
  overflow: hidden;
}
.tweaks-panel.open { display: flex; }
.tweaks-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.tweaks-title {
  display: flex; align-items: center; gap: 10px;
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  letter-spacing: 0.18em; text-transform: uppercase;
}
.tweaks-dot {
  width: 6px; height: 6px; border-radius: 50%; background: var(--blue);
  box-shadow: 0 0 8px var(--blue-glow);
}
.tweaks-close {
  width: 28px; height: 28px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--fg); font-size: 18px; line-height: 1;
  display: inline-flex; align-items: center; justify-content: center;
  transition: border-color 0.25s ease, color 0.25s ease;
}
.tweaks-close:hover { border-color: var(--blue); color: var(--blue); }

.tweaks-body { padding: 8px 8px 14px; overflow-y: auto; }
.tweaks-section { padding: 10px 8px; }
.tweaks-section + .tweaks-section { border-top: 1px solid rgba(255,255,255,0.06); }
.tweaks-section-title {
  font-family: 'JetBrains Mono', monospace; font-size: 10px;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--muted); margin: 4px 0 12px;
}

.tweak-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 6px 0;
}
.tweak-row.col { flex-direction: column; align-items: stretch; gap: 8px; }
.tweak-row label {
  font-size: 13px; color: var(--fg); letter-spacing: -0.005em;
}

.tw-toggle {
  position: relative; width: 38px; height: 22px; border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.04);
  transition: background 0.25s ease, border-color 0.25s ease;
  flex: 0 0 38px;
}
.tw-toggle::after {
  content: ''; position: absolute; top: 2px; left: 2px;
  width: 16px; height: 16px; border-radius: 50%;
  background: rgba(255,255,255,0.55);
  transition: transform 0.3s var(--ease), background 0.25s ease;
}
.tw-toggle.on { background: var(--blue); border-color: var(--blue); }
.tw-toggle.on::after { transform: translateX(16px); background: #0a0a0c; }

.tw-text {
  background: transparent; border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px; padding: 8px 10px;
  color: var(--fg); font: inherit; font-size: 13px;
  outline: none; resize: vertical;
  font-family: inherit;
  transition: border-color 0.25s ease;
}
.tw-text:focus { border-color: var(--blue); }

.tw-swatches { display: flex; gap: 8px; flex-wrap: wrap; }
.tw-swatches button {
  width: 32px; height: 32px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.18);
  cursor: pointer;
  transition: transform 0.25s var(--ease), border-color 0.25s ease, box-shadow 0.3s ease;
}
.tw-swatches button:hover { transform: scale(1.08); }
.tw-swatches button.active {
  border-color: var(--fg);
  box-shadow: 0 0 0 2px var(--bg), 0 0 0 3px var(--fg);
}