:root{--bg: #0f172a;--panel: #1e293b;--panel-2: #273449;--border: #334155;--text: #e2e8f0;--muted: #94a3b8;--primary: #6366f1;--primary-hover: #818cf8;--pos: #34d399;--neg: #f87171}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--primary-hover)}.muted{color:var(--muted)}.center{text-align:center}.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}.pos{color:var(--pos)}.neg{color:var(--neg)}.app{min-height:100vh}.topbar{display:flex;justify-content:space-between;align-items:center;padding:14px 24px;background:var(--panel);border-bottom:1px solid var(--border)}.brand{font-weight:700;font-size:18px;text-decoration:none;color:var(--text)}.logo{display:inline-flex;align-items:center;gap:10px}.logo svg{display:block;border-radius:9px;box-shadow:0 2px 8px 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th.num,table.grid td.num{text-align:right}.row-click{cursor:pointer}.row-click:hover td{background:var(--panel-2)}.editable .cell-input{width:100%;padding:6px 8px}.editable .cell-input.num{text-align:right}.day-col{width:88px}.day-input{text-align:center}.falls-on{font-size:11px;text-align:center;margin-top:2px}.section-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.section-head h2{margin:0}.month-layout{display:grid;grid-template-columns:1fr 300px;gap:20px;align-items:start}.summary{position:sticky;top:20px}.summary hr{border:none;border-top:1px solid var(--border);margin:10px 0}.summary-row{display:flex;justify-content:space-between;padding:6px 0;font-size:14px}.summary-row.strong{font-weight:700;font-size:15px}.period-nav{display:flex;align-items:center;gap:8px}.period-title{min-width:240px;text-align:center}.period-title h1{margin:0}.period-title 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