:root{--ink: #1f2421;--ink-2: #3a3f3c;--bg: #f3f4f2;--card: #ffffff;--text: #1f2421;--muted: #6b7079;--border: #dcdcd6;--soft: #eef0ec;--accent: #1f8a55;--accent-d: #176b42;--accent-soft: #e7f3ec;--p: #c2504c;--f: #c08a36;--c: #4f74b0;--over: #c0392b;--radius: 12px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Hiragino Kaku Gothic ProN,Noto Sans JP,Yu Gothic,Meiryo,sans-serif;background:var(--bg);color:var(--text);-webkit-tap-highlight-color:transparent}button{font-family:inherit;cursor:pointer}.app{max-width:560px;margin:0 auto;min-height:100vh;padding-bottom:40px}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:var(--card);color:var(--text);border-bottom:1px solid var(--border);padding-top:calc(14px + env(safe-area-inset-top))}.topbar h1{margin:0;font-size:18px;font-weight:700;letter-spacing:.02em}.topbar 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