:root{--ink:#18181b;--ink-secondary:#525252;--muted:#71717a;--faint:#a1a1aa;--line:#e4e4e1;--hairline:#ececea;--paper:#fbfaf7;--surface:#fff;--field:#f4f3ef;--accent:#16a34a;--warn:#c2410c;--danger:#b91c1c;--shadow:0 18px 60px #18181b14;--font-mono:"JetBrains Mono", "IBM Plex Mono", ui-monospace, Menlo, monospace;--font-sans:Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}*{box-sizing:border-box}html{background:var(--paper);color:var(--ink);font-family:var(--font-mono);font-feature-settings:"tnum" 1}body{background:linear-gradient(90deg, #18181b09 1px, transparent 1px), linear-gradient(0deg, #18181b06 1px, transparent 1px), var(--paper);background-size:34px 34px;min-width:320px;min-height:100vh;margin:0}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:wait;opacity:.58}a{color:inherit;text-decoration:none}.auth-screen{place-items:center;min-height:100vh;padding:24px;display:grid}.auth-panel{border:1px solid var(--line);width:min(420px,100%);box-shadow:var(--shadow);background:#ffffffd1;padding:26px}.app{grid-template-columns:236px minmax(0,1fr);min-height:100vh;display:grid}.sidebar{border-right:1px solid var(--line);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#fbfaf7e6;height:100vh;padding:24px 18px;position:sticky;top:0}.brand{letter-spacing:.08em;text-transform:uppercase;align-items:center;gap:10px;margin-bottom:26px;font-size:12px;font-weight:700;display:flex}.brand-mark{border:1px solid var(--ink);place-items:center;width:34px;height:34px;display:grid}.nav{gap:6px;display:grid}.nav a{min-height:42px;color:var(--muted);border:1px solid #0000;align-items:center;gap:10px;padding:0 11px;font-size:12px;display:flex}.nav a.active{color:var(--ink);border-color:var(--line);background:var(--surface)}.main{min-width:0;padding:28px clamp(16px,4vw,48px) 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var(--line);color:var(--muted);border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:4px;min-width:0;display:flex}.habit-chip.is-done{background:var(--ink);color:var(--surface);border-color:var(--ink)}.habit-chip__label{text-overflow:ellipsis;white-space:nowrap;max-width:100%;padding:0 6px;overflow:hidden}.habit-chip__streak{opacity:.76;font-size:10px}.mini-rings{grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;display:grid}.mini-ring{justify-items:center;gap:6px;min-width:0;display:grid}.label-xs{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;max-width:100%;font-size:10px;overflow:hidden}.list{gap:8px;display:grid}.list-row{border:1px solid var(--hairline);background:var(--paper);gap:8px;padding:12px;display:grid}.heatmap{grid-template-columns:repeat(14,1fr);gap:4px;display:grid}.heat-cell{aspect-ratio:1;border:1px solid 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