:root { --bg: #05070f; --panel: rgba(14,19,38,.74); --line: rgba(255,255,255,.12); --fg: #e8ecf8; --mut: #94a0c4; --acc: #ffb454; color-scheme: dark; }
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; overflow: hidden; }
body { font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--fg); background: var(--bg); user-select: none; -webkit-user-select: none; }
#c { position: fixed; inset: 0; width: 100%; height: 100%; display: block; cursor: grab; }
#c:active { cursor: grabbing; }
.panel { position: fixed; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.panel h3 { margin: 0 0 8px; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--mut); }
.top { position: fixed; top: 12px; left: 12px; right: 12px; display: flex; gap: 10px; align-items: center; justify-content: space-between; flex-wrap: wrap; pointer-events: none; }
.top > * { pointer-events: auto; }
.back { color: var(--fg); text-decoration: none; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 7px 12px; backdrop-filter: blur(10px); }
.back:hover { background: rgba(255,255,255,.12); }
.title { font-weight: 700; font-size: 17px; }
.title small { color: var(--mut); font-weight: 400; margin-left: 8px; }
button { font: inherit; color: var(--fg); cursor: pointer; background: rgba(255,255,255,.07); border: 1px solid var(--line); border-radius: 10px; padding: 7px 12px; transition: .15s; }
button:hover { background: rgba(255,255,255,.14); }
button:focus-visible, input:focus-visible { outline: 2px solid var(--acc); outline-offset: 2px; }
button.on { background: var(--acc); color: #2a1a00; border-color: transparent; font-weight: 600; }
.row { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
label.s { display: grid; grid-template-columns: 1fr auto; gap: 2px 8px; margin: 8px 0; color: var(--mut); font-size: 13px; }
label.s b { color: var(--fg); font-weight: 600; }
label.s input { grid-column: 1 / -1; width: 100%; accent-color: var(--acc); }
.hint { position: fixed; left: 50%; bottom: 12px; transform: translateX(-50%); color: var(--mut); font-size: 13px; background: var(--panel); border: 1px solid var(--line); border-radius: 999px; padding: 6px 16px; backdrop-filter: blur(10px); text-align: center; max-width: calc(100% - 24px); pointer-events: none; }
.hint b { color: var(--fg); font-weight: 600; }
.overlay { position: fixed; inset: 0; display: grid; place-items: center; background: rgba(5,8,18,.9); }
.overlay[hidden] { display: none; }
@media (max-width: 760px) { .title small { display: none; } .hint { font-size: 11px; border-radius: 12px; } }