:root{color-scheme:dark;--void: #05070d;--panel: rgba(10, 14, 22, .62);--panel-line: rgba(150, 190, 255, .16);--panel-line-strong: rgba(88, 215, 255, .62);--track: rgba(255, 255, 255, .025);--ink: #eef3fb;--ink-soft: rgba(238, 243, 251, .72);--ink-faint: rgba(238, 243, 251, .56);--signal: #58d7ff;--gutter: 22px;--bar-h: 40px;--toggle-w: 92px;--font-sans: Inter, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;--font-mono: "SFMono-Regular", "Cascadia Mono", Consolas, monospace}*,*:before,*:after{box-sizing:border-box}html,body{height:100%;margin:0;overflow:hidden;background:var(--void);color:var(--ink);font-family:var(--font-sans);-webkit-font-smoothing:antialiased}::selection{background:var(--signal);color:var(--void)}:where(button):focus-visible{outline:2px solid var(--signal);outline-offset:2px}.lab{position:fixed;inset:0}#fluid-canvas{position:absolute;inset:0;display:block;width:100%;height:100%;touch-action:none;cursor:crosshair}.scrim{position:absolute;inset:0;pointer-events:none;background:radial-gradient(125% 95% at 50% 45%,transparent 42%,rgba(5,7,13,.62) 100%),linear-gradient(180deg,rgba(5,7,13,.5) 0%,transparent 22%),linear-gradient(0deg,rgba(5,7,13,.42) 0%,transparent 24%)}.hud{position:absolute;z-index:2;pointer-events:none;transition:opacity .25s ease}.hud button,.hud-toggle{pointer-events:auto}.icon{flex:none;width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}.icon-play{fill:currentColor}#hud-pause .icon-play,#hud-pause[aria-pressed=true] .icon-pause,.hud-toggle .icon-eye,.hud-toggle[aria-pressed=true] .icon-eye-off{display:none}#hud-pause[aria-pressed=true] .icon-play,.hud-toggle[aria-pressed=true] 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div:last-child{padding-right:0}.readout dt{font-family:var(--font-mono);font-size:10px;letter-spacing:.14em;color:var(--ink-faint)}.readout dd{margin:3px 0 0;font-family:var(--font-mono);font-size:13px;font-variant-numeric:tabular-nums}.hud-toggle{position:absolute;z-index:3;top:18px;right:var(--gutter);display:inline-flex;align-items:center;justify-content:center;gap:7px;width:var(--toggle-w);height:var(--bar-h);padding:0 10px;border:1px solid var(--panel-line);border-radius:10px;background:var(--panel);color:var(--ink-soft);font-family:inherit;font-size:12px;cursor:pointer;backdrop-filter:blur(10px);transition:border-color .18s ease,color .18s ease}.hud-toggle:hover{border-color:#58d7ff73;color:var(--ink)}.hud-dock{right:0;bottom:var(--gutter);left:0;width:max-content;max-width:calc(100% - 2 * var(--gutter));margin-inline:auto;display:grid;grid-template-columns:repeat(3,auto);grid-template-rows:repeat(3,auto);padding:14px 0;border:1px solid var(--panel-line);border-radius:16px;background:var(--panel);backdrop-filter:blur(14px);box-shadow:0 18px 40px #00000059;pointer-events:auto}.hud-group{display:grid;grid-row:1 / span 3;grid-template-rows:subgrid;min-width:0;padding:0 18px}.hud-group+.hud-group{border-left:1px solid var(--panel-line)}.hud-label{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:0 0 9px;font-family:var(--font-mono);font-size:10px;letter-spacing:.18em;color:var(--ink-faint)}.chips,.actions{display:grid;grid-auto-columns:1fr;grid-auto-flow:column;gap:3px;padding:3px;border:1px solid var(--panel-line);border-radius:11px;background:var(--track)}.actions{grid-auto-columns:auto}.chips button,.actions button{position:relative;display:flex;align-items:center;justify-content:center;min-height:44px;border:1px solid transparent;border-radius:8px;background:transparent;color:var(--ink-soft);font-family:inherit;cursor:pointer;transition:border-color .18s ease,background .18s ease,color .18s ease}.chips button{flex-direction:column;gap:3px;min-width:66px;padding:5px 10px}.actions button{gap:7px;padding:0 12px;font-size:12.5px}.chips button b{font-size:13px;font-weight:600}.chips button span{font-family:var(--font-mono);font-size:8.5px;letter-spacing:.12em;color:var(--ink-faint)}.chips button:hover,.actions button:hover{background:#ffffff0f;color:var(--ink)}.chips button.is-active,#hud-pause[aria-pressed=true]{border-color:#58d7ff80;background:#58d7ff24;color:var(--ink)}.chips button.is-active span{color:var(--signal)}.hud-note{width:0;min-width:100%;margin:10px 0 0;font-size:11px;line-height:1.6;color:var(--ink-faint)}.intro{position:absolute;z-index:3;top:50%;left:50%;margin:0;padding:10px 20px;transform:translate(-50%,-50%);border:1px solid var(--panel-line);border-radius:999px;background:#05070d80;color:#eef3fbb8;font-size:13px;letter-spacing:.08em;white-space:nowrap;backdrop-filter:blur(10px);pointer-events:none;animation:intro-breathe 3.6s ease-in-out infinite 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.intro{display:none}.lab.is-hud-hidden .hud{visibility:hidden;opacity:0;pointer-events:none}@media(hover:none),(pointer:coarse){kbd,.keys{display:none}:root{--toggle-w: 76px}}@media(max-width:880px){:root{--gutter: 14px}.hud-top{padding-top:14px}.hud-toggle{top:14px}.readout div:nth-child(3),.readout div:nth-child(4){display:none}.hud-dock{padding:12px 0}.hud-group{padding:0 12px}.hud-note,.actions kbd{display:none}.intro{font-size:12px;white-space:normal;max-width:80vw;text-align:center}}@media(max-width:720px){:root{--gutter: 12px;--bar-h: 44px;--toggle-w: 44px}.hud-top{gap:10px;padding:max(12px,env(safe-area-inset-top)) calc(var(--gutter) + var(--toggle-w) + 10px) 0 var(--gutter)}.hud-toggle{top:max(12px,env(safe-area-inset-top));padding:0}.brand{gap:9px}.brand-mark{width:28px;height:28px}.brand h1{font-size:11px;letter-spacing:.14em}.brand p{max-width:210px;font-size:10px;line-height:1.5}.readout{flex:none}.readout div:nth-child(2){display:none}.readout div{padding:0}.hud-dock{bottom:calc(10px + env(safe-area-inset-bottom));width:auto;max-width:none;margin-inline:var(--gutter);grid-template-columns:minmax(0,1fr) auto;grid-template-rows:auto auto;grid-template-areas:"medium actions" "field field";gap:10px 8px;padding:10px;border-radius:14px;backdrop-filter:blur(10px)}.hud-group{display:block;grid-row:auto;padding:0}.hud-group+.hud-group{border-left:0}.hud-medium{grid-area:medium}.hud-field{grid-area:field}.hud-actions{grid-area:actions;align-self:end}.hud-actions .hud-label{display:none}.hud-label{margin-bottom:6px;font-size:9px}.chips button{min-width:0;padding:4px}.actions button{width:44px;padding:0}.actions [data-label],.hud-toggle [data-label]{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.hud-toggle kbd{display:none}.hud-toggle .icon,.actions .icon{width:16px;height:16px}.intro{top:40%;max-width:calc(100vw - 32px);font-size:11px;width:max-content;white-space:nowrap}.fallback{width:calc(100% - 32px);padding:22px}}@media(max-width:350px){.chips button span{display:none}.brand p{max-width:180px}}@media(prefers-reduced-motion:reduce){.intro{animation:none}.hud,.chips button,.actions button,.hud-toggle{transition:none}}@media(prefers-contrast:more){:root{--panel: rgba(5, 7, 13, .9);--panel-line: rgba(238, 243, 251, .5);--ink-faint: rgba(238, 243, 251, .85)}}