/* Tweaks panel styling */
#tweaks-panel {
  position: fixed; top: 88px; right: 20px; z-index: 2000;
  width: 300px; max-width: calc(100vw - 32px);
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 18px;
  box-shadow: 0 30px 80px -20px rgba(0,0,0,.7), inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter: blur(20px);
  color: var(--text);
  transform: translateY(-8px) scale(.98); opacity: 0; pointer-events: none;
  transition: transform .3s var(--ease-out), opacity .25s;
  font-family: var(--font-body);
}
#tweaks-panel.open { transform: none; opacity: 1; pointer-events: auto; }
.tw-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 18px; border-bottom: 1px solid var(--line-2); }
.tw-title { display: flex; align-items: center; gap: 9px; font-family: var(--font-display); font-weight: 700; font-size: 16px; letter-spacing: -.02em; }
.tw-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--glow); }
.tw-close { background: rgba(15,23,42,.05); border: 1px solid var(--line); color: var(--dim); width: 28px; height: 28px; border-radius: 8px; font-size: 11px; transition: all .2s; }
.tw-close:hover { color: var(--text); background: rgba(15,23,42,.09); }
.tw-body { padding: 18px; display: flex; flex-direction: column; gap: 18px; }
.tw-group { display: flex; flex-direction: column; gap: 10px; }
.tw-group > label { font-size: 11px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--faint); display: flex; justify-content: space-between; }
.tw-val { color: var(--accent-2); }
.tw-swatches { display: flex; gap: 9px; }
.tw-swatch { width: 34px; height: 34px; border-radius: 10px; background: var(--sw); border: 2px solid transparent; box-shadow: inset 0 1px 0 rgba(255,255,255,.3); transition: transform .2s, border-color .2s; }
.tw-swatch:hover { transform: scale(1.08); }
.tw-swatch.on { border-color: #fff; box-shadow: 0 0 0 3px color-mix(in oklab, var(--sw) 40%, transparent); }
.tw-seg { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 6px; background: rgba(15,23,42,.05); padding: 4px; border-radius: 11px; border: 1px solid var(--line-2); }
.tw-seg button { background: transparent; border: none; color: var(--dim); padding: 8px 4px; border-radius: 8px; font-size: 12.5px; font-weight: 700; transition: all .2s; }
.tw-seg button.on { background: var(--accent); color: #fff; }
#tweaks-panel input[type=range] { -webkit-appearance: none; width: 100%; height: 4px; border-radius: 4px; background: var(--line); outline: none; }
#tweaks-panel input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 16px; height: 16px; border-radius: 50%; background: var(--accent); cursor: pointer; box-shadow: 0 0 0 4px color-mix(in oklab, var(--accent) 22%, transparent); }
#tweaks-panel textarea { width: 100%; background: #ffffff; border: 1px solid var(--line); border-radius: 10px; color: var(--text); padding: 10px 12px; font-family: var(--font-body); font-size: 13px; resize: vertical; }
#tweaks-panel textarea:focus { outline: none; border-color: var(--accent); }
.tw-hint { font-size: 11px; color: var(--faint); margin: 0; line-height: 1.4; }
.tw-reset { background: rgba(15,23,42,.04); border: 1px solid var(--line); color: var(--dim); padding: 10px; border-radius: 10px; font-weight: 700; font-size: 13px; transition: all .2s; }
.tw-reset:hover { color: var(--text); border-color: var(--accent); }
@media (max-width: 560px) { #tweaks-panel { top: auto; bottom: 16px; right: 16px; left: 16px; width: auto; } }