/* ===== Tweaks panel ===== */
.tweaks-panel {
  position: fixed;
  bottom: 22px;
  right: 22px;
  width: 280px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 18px 50px rgba(46, 0, 26, 0.25);
  border: 1px solid rgba(27,2,17,.08);
  z-index: 200;
  flex-direction: column;
  overflow: hidden;
}
.tweaks-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--magenta);
  color: white;
}
.tweaks-head strong { font-family: var(--font-display); letter-spacing: .04em; }
.tweaks-head button {
  background: rgba(255,255,255,.18); border: none;
  width: 28px; height: 28px; border-radius: 50%;
  color: white; font-size: 18px; cursor: pointer;
}
.tweaks-body { padding: 18px; display: flex; flex-direction: column; gap: 18px; }
.tw-group { display: flex; flex-direction: column; gap: 8px; }
.tw-label {
  font-size: 11px; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--tinta-soft);
}
.tw-options { display: flex; gap: 6px; }
.tw-options button {
  flex: 1;
  padding: 8px 10px; font-size: 12px; font-weight: 600;
  background: var(--rosa-niebla); color: var(--tinta);
  border: 1.5px solid transparent;
  border-radius: 10px;
  display: flex; align-items: center; gap: 6px; justify-content: center;
  cursor: pointer;
  transition: all .15s;
}
.tw-options button span {
  width: 12px; height: 12px; border-radius: 50%;
}
.tw-options button:hover { background: var(--rosa-suave); }
.tw-options button.on { border-color: var(--magenta); background: white; color: var(--magenta-deep); }
.tweaks-body input[type=range] {
  width: 100%; accent-color: var(--magenta);
}
#tweaks-fab {
  position: fixed;
  bottom: 22px; right: 22px;
  width: 50px; height: 50px;
  border-radius: 50%;
  background: var(--magenta); color: white;
  border: none; font-size: 22px;
  display: none;
  align-items: center; justify-content: center;
  box-shadow: 0 12px 28px rgba(204,0,127,.4);
  z-index: 200;
  cursor: pointer;
}