:root{--bg: #11151b;--panel: #1a2029;--panel-edge: #2a3341;--ink: #e6ebf2;--ink-dim: #93a0b1;--accent: #6fb2ff;--danger: #ff8a80;color-scheme:dark}*{box-sizing:border-box}html,body{height:100%;margin:0}body{background:var(--bg);color:var(--ink);font:13px/1.6 Helvetica Neue,Arial,Hiragino Sans,Noto Sans JP,sans-serif}#app{display:grid;grid-template-columns:340px 1fr;height:100%}#sidebar{overflow-y:auto;padding:20px;border-right:1px solid var(--panel-edge);display:flex;flex-direction:column;gap:16px}#canvas-host{position:relative;min-width:0;overflow:hidden}#canvas-host canvas{display:block;width:100%;height:100%;touch-action:none}h1{margin:0;font-size:17px;letter-spacing:.01em}h2{margin:0 0 10px;font-size:11px;text-transform:uppercase;letter-spacing:.09em;color:var(--ink-dim)}.subtitle{margin:2px 0 12px;color:var(--ink-dim)}.privacy{margin:0 0 6px;padding-left:10px;border-left:2px solid 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6px;padding-left:10px;border-left:2px solid var(--panel-edge);font-size:12px}.download-note-en{color:var(--ink-dim)}.download-digest{margin:10px 0 0;color:var(--ink-dim);font-size:11px}.download-digest code.download-cmd{display:inline;margin:0;padding:1px 4px;font-size:10px;user-select:text}.download-digest code{display:block;margin-top:3px;padding:6px 7px;background:#0f1319;border:1px solid var(--panel-edge);border-radius:5px;color:var(--ink);font-size:10px;line-height:1.45;overflow-wrap:anywhere;user-select:all}