:root{--fg: #e8edf4;--muted: #8b97a8;--accent: #4fd1c5;--panel: rgba(18, 22, 30, .72)}*{box-sizing:border-box}html,body{margin:0;height:100%;overflow:hidden;background:#0e1116;color:var(--fg);font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace}#app{position:fixed;top:0;right:0;bottom:0;left:0}#scene{display:block;width:100vw;height:100vh}#hud{position:absolute;top:16px;left:16px;display:flex;flex-direction:column;gap:10px;pointer-events:none;-webkit-user-select:none;user-select:none}.panel{background:var(--panel);border:1px solid rgba(255,255,255,.06);border-radius:8px;padding:10px 12px;min-width:230px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.panel .title{font-size:10px;letter-spacing:.18em;color:var(--accent);margin-bottom:6px}.row{display:flex;justify-content:space-between;font-size:12px;line-height:1.7}.row span{color:var(--muted)}.row b{font-weight:600}.row b.on{color:var(--accent)}.bar{display:flex;align-items:center;gap:8px;font-size:11px;margin:3px 0}.bar span{color:var(--muted);width:56px;white-space:pre}.bar em{width:38px;text-align:right;font-style:normal;color:var(--fg)}.bar .track{position:relative;flex:1;height:8px;background:#ffffff12;border-radius:4px}.bar .track:before{content:"";position:absolute;left:50%;top:-1px;bottom:-1px;width:1px;background:#ffffff40}.bar .fill{position:absolute;top:0;height:8px;background:var(--accent);border-radius:4px}.panel.meta{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);min-width:230px}.sw{display:inline-block;width:14px;height:3px;vertical-align:middle;margin-right:6px;border-radius:2px}.sw.demo{background:#8b97a8;opacity:.6}.sw.truth{background:#5ee0a0}.sw.est{background:#f6b73c}#tour{position:absolute;bottom:22px;left:50%;transform:translate(-50%);width:540px;max-width:calc(100vw - 32px);background:var(--panel);border:1px solid rgba(79,209,197,.25);border-radius:10px;padding:14px 18px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);box-shadow:0 8px 32px #0006}.tour-head{display:flex;justify-content:space-between;font-size:10px;letter-spacing:.12em;color:var(--muted);text-transform:uppercase}.tour-head .tag{color:var(--accent)}.tour-title{font-size:15px;font-weight:600;margin:6px 0 4px}.tour-body{font-size:12px;line-height:1.6;color:#cdd6e2}.tour-body b{color:var(--fg)}.tour-eq{margin-top:10px;padding:8px 10px;background:#ffffff0d;border-left:2px solid var(--accent);border-radius:4px;font-size:13px;color:var(--fg);overflow-x:auto}.tour-eq sub,.tour-eq sup{font-size:9px}.tour-nav{margin-top:10px;font-size:11px;color:var(--muted);text-align:center}#plotwrap{position:absolute;bottom:16px;right:16px;width:240px;background:var(--panel);border:1px solid rgba(255,255,255,.06);border-radius:8px;padding:8px 10px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.plot-label{display:flex;justify-content:space-between;font-size:10px;letter-spacing:.12em;color:var(--accent);margin-bottom:4px}.plot-label span{color:var(--muted)}.plot-label .sw{margin:0 3px 0 8px}#plot{display:block;width:100%;height:80px}#help{position:absolute;bottom:16px;left:16px;background:var(--panel);border:1px solid rgba(255,255,255,.06);border-radius:8px;padding:10px 12px;font-size:11px;max-width:320px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}#help strong{color:var(--accent);font-weight:600;letter-spacing:.05em}#help .keys{display:grid;grid-template-columns:auto 1fr;gap:2px 12px;margin:8px 0}#help .keys span:nth-child(odd){color:var(--fg)}#help .keys span:nth-child(2n){color:var(--muted)}#help small{color:var(--muted)}