:root { color-scheme: dark; }
* { box-sizing: border-box; }
html, body { margin: 0; background: #0d0f12; color: #e8e6e3; font: 16px/1.5 system-ui, -apple-system, sans-serif; }
.bar { position: sticky; top: 0; z-index: 10; background: rgba(13,15,18,.96); border-bottom: 1px solid #26292e; padding: 8px 12px 10px; }
.progress { height: 3px; background: #26292e; border-radius: 2px; overflow: hidden; margin-bottom: 10px; }
.progress > div { height: 100%; width: 0; background: #73a89a; transition: width .15s linear; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 8px; max-width: 940px; margin-left: auto; margin-right: auto; }
.row:last-child { margin-bottom: 0; }
.btn { min-height: 44px; padding: 0 18px; border: 0; border-radius: 6px; background: #73a89a; color: #0d0f12; font: 600 15px system-ui; cursor: pointer; }
.btn.ghost { background: #1d2025; color: #e8e6e3; border: 1px solid #2e3238; }
.btn.small { min-height: 44px; padding: 0 14px; font-size: 14px; }
.btn:disabled { opacity: .35; cursor: default; }
.btn.on { outline: 2px solid #73a89a; outline-offset: 2px; }
.sel { flex: 1; min-width: 130px; min-height: 44px; background: #1d2025; color: #e8e6e3; border: 1px solid #2e3238; border-radius: 6px; font: inherit; padding: 0 10px; }
.field { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; color: #9aa0a6; font-size: 14px; }
.field input[type=range] { width: 120px; accent-color: #73a89a; }
.field.check input { width: 20px; height: 20px; accent-color: #73a89a; }
#speedval { min-width: 3ch; color: #e8e6e3; font-weight: 600; }
.fit { margin-left: auto; display: inline-flex; gap: 8px; }
.stage { max-width: 940px; margin: 0 auto; padding: 16px 0 32px; }
.stage img { display: block; width: 100%; height: auto; margin: 0 auto; }
.stage.full { max-width: none; overflow-x: auto; }
.stage.full img { width: 1080px; max-width: none; }
.foot { max-width: 940px; margin: 0 auto; padding: 0 12px 40px; color: #6b7178; font-size: 13px; }
@media (max-width: 480px) { .stage { padding-top: 10px; } }