.kr-bar { position: fixed; right: 16px; bottom: 12px; z-index: 110; max-width: calc(100vw - 32px); padding: 6px; border: 1px solid #4b5563; border-radius: 12px; background: #111827; color: #f3f4f6; box-shadow: 0 4px 24px #0008; }
.kr-action { min-height: 44px; margin: 3px; padding: 8px 12px; border-radius: 8px; font-size: 15px; cursor: pointer; }
.kr-action:disabled, .kr-action[disabled] { cursor: default !important; transform: none !important; animation: none !important; transition: none !important; opacity: .5; }
.kr-panel { width: 640px; max-width: 90vw; max-height: 85vh; overflow: auto; padding: 20px; color: #f3f4f6; font-size: 17px; }
.kr-panel h2 { font-size: 26px; margin: 0 0 12px; }
.kr-panel h3 { margin: 16px 0 8px; }
.kr-muted, .kr-url { color: #d1d5db; margin-bottom: 14px; }
.kr-pairing { text-align: center; }
.kr-pairing img { display: block; background: white; padding: 8px; margin: 12px auto; }
.kr-code { display: block; font-size: 36px; letter-spacing: 4px; margin: 12px; }
.kr-panel form { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.kr-panel label { width: 100%; }
.kr-panel input { background: #1f2937; border: 1px solid #9ca3af; border-radius: 8px; padding: 12px; width: 220px; max-width: 100%; font-size: 22px; color: white; }
.kr-error { color: #fca5a5; white-space: normal; }
.kr-controller { display: flex; justify-content: space-between; align-items: center; }
.kr-setup { max-width: 720px; padding: 48px 24px; margin: 0 auto; color: #f3f4f6; font: 18px/1.5 Arial, sans-serif; }
.kr-setup h1 { font-size: 32px; margin: 0 0 16px; }
.kr-current { display: block; font-size: 14px; padding: 6px 10px; white-space: normal; }
.kr-controls { display: flex; flex-wrap: wrap; justify-content: center; }
.kr-timeline { display: flex; align-items: center; gap: 8px; font-size: 13px; padding: 4px 10px; }
.kr-timeline input { flex: 1; min-width: 0; height: 32px; cursor: pointer; }
.kr-timeline input:disabled { cursor: default; }
.kr-viewport { height: calc(100vh - var(--kr-bar-height, 80px)); overflow: auto; }
.kr-viewport .h-screen { height: 100%; }
@media (max-width: 640px) {
    .kr-bar { right: 8px; left: 8px; bottom: 8px; padding-bottom: env(safe-area-inset-bottom, 0); }
    .kr-panel { padding: 10px; font-size: 16px; }
    .kr-panel h2 { font-size: 22px; }
    .kr-action { font-size: 14px; padding: 7px 10px; }
}