.uu { display: grid; grid-template-columns: minmax(0, 1fr); gap: 20px; max-width: 760px; margin: 0 auto 64px; }
.uu-panel { padding: 22px; }
.uu-panel h2 { margin: 0 0 6px; font-size: 1.15rem; }
.uu-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.uu-head h2 { margin: 0; }
.uu .btn { min-height: 44px; touch-action: manipulation; }
.uu .btn svg { width: 18px; height: 18px; }

.uu-row { margin-bottom: 14px; }
.uu-label { display: block; margin-bottom: 6px; font-weight: 700; font-size: .92rem; }
.uu-label small { margin-left: 6px; color: var(--muted); font-family: var(--font-mono); font-weight: 400; }
.uu-val {
  display: flex; align-items: center; gap: 10px; padding: 8px 8px 8px 14px;
  border: 1px solid var(--line); border-radius: 14px; background: rgba(255, 255, 255, .04);
}
.uu-val code { flex: 1; padding: 0; background: transparent; color: var(--violet-3); min-width: 0; overflow-wrap: anywhere; font-family: var(--font-mono); font-size: .98rem; user-select: all; }
/* Toggle switch */
.uu-switch { position: relative; display: inline-flex; align-items: center; gap: 12px; min-height: 44px; cursor: pointer; touch-action: manipulation; }
.uu-switch input { position: absolute; width: 1px; height: 1px; margin: 0; opacity: 0; }
.uu-track {
  position: relative; flex: none; width: 46px; height: 26px; border: 1px solid var(--line); border-radius: 999px;
  background: rgba(255, 255, 255, .08); transition: background .2s ease, border-color .2s ease;
}
.uu-track::after {
  content: ""; position: absolute; top: 2px; left: 2px; width: 20px; height: 20px; border-radius: 50%;
  background: var(--muted); transition: transform .2s ease, background .2s ease;
}
.uu-switch input:checked + .uu-track { border-color: var(--violet-2); background: rgba(154, 120, 255, .45); }
.uu-switch input:checked + .uu-track::after { transform: translateX(20px); background: #fff; }
.uu-switch input:focus-visible + .uu-track { outline: 2px solid var(--violet-3); outline-offset: 3px; }
.uu-switch-text { font-size: .92rem; font-weight: 700; letter-spacing: .04em; }
@media (prefers-reduced-motion: reduce) { .uu-track, .uu-track::after { transition: none; } }

.uu-hint { margin: 6px 0 14px; color: var(--muted); font-size: .92rem; }
.uu-foot { margin: 0; text-align: center; }
.uu-opts { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; margin-bottom: 14px; }
/* Dark dropdown: closed state with a chevron, open list readable */
.uu .field select {
  appearance: none; -webkit-appearance: none; color-scheme: dark; padding-right: 44px; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23c9b8ff' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-position: right 14px center; background-repeat: no-repeat; background-size: 18px;
}
.uu .field select option { background: #1a1530; color: #e9e4fb; }
.uu .field select option:checked { background: #3b2a78; color: #fff; }
.uu .field select:focus-visible, .uu .field input:focus-visible { outline: 2px solid var(--violet-3); outline-offset: 2px; }
.uu .field select, .uu .field input[type="text"], .uu .field input[type="number"] {
  width: 100%; min-height: 48px; padding: 0 14px; border: 1px solid var(--line); border-radius: 14px;
  background: rgba(255, 255, 255, .05); color: var(--ink); font: inherit; font-size: 16px;
}

.uu-code {
  margin: 0 0 14px; padding: 14px; overflow-x: auto; border: 1px solid var(--line); border-radius: 14px;
  background: rgba(0, 0, 0, .3); font-size: .82rem; line-height: 1.5; -webkit-overflow-scrolling: touch;
}
.uu-code code { font-family: var(--font-mono); white-space: pre; }
.uu-list {
  width: 100%; margin-bottom: 14px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 14px;
  background: rgba(0, 0, 0, .3); color: var(--ink); font-family: var(--font-mono); font-size: 16px; line-height: 1.6; resize: vertical;
}
.uu-btns { display: flex; flex-wrap: wrap; gap: 10px; }

.uu-toast {
  position: fixed; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom, 0px)); z-index: 150;
  transform: translateX(-50%); padding: 12px 20px; border: 1px solid var(--line); border-radius: 999px;
  background: rgba(30, 24, 56, .96); box-shadow: 0 8px 30px rgba(0, 0, 0, .4); font-size: .93rem;
}
.uu-toast[hidden] { display: none; }

@media (max-width: 560px) {
  .uu { gap: 14px; }
  .uu-panel { padding: 18px 14px; border-radius: 22px; }
  .uu-head .btn { width: 100%; }
  .uu-val { flex-direction: column; align-items: stretch; padding: 12px; }
  .uu-val .btn { width: 100%; }
  .uu-btns .btn { flex: 1; }
}

.uu .mc-dd { flex: none; width: 100%; }