:root{--paper: #f7f6f2;--paper-raised: #ffffff;--ink: #1e2a22;--ink-soft: #4a564d;--line: #d9d4c6;--accent: #2f5d45;--accent-soft: #e7efe9;--income: #2f5d45;--expense: #a1483a;--expense-soft: #f5e8e5;--focus: #1b6ef3;--font-display: "Source Serif 4", Georgia, serif;--font-body: "Inter", system-ui, sans-serif;--font-mono: "IBM Plex Mono", ui-monospace, monospace;--radius: 3px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-body);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased}h1,h2,h3{font-family:var(--font-display);font-weight:600;margin:0 0 4px;letter-spacing:-.01em}h1{font-size:26px}h2{font-size:18px}a{color:var(--accent)}button,input,select,textarea{font-family:inherit;font-size:inherit}:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;flex-shrink:0;background:var(--paper-raised);border-right:1px solid var(--line);padding:24px 16px;display:flex;flex-direction:column}.sidebar-close-btn,.mobile-topbar,.sidebar-backdrop{display:none}.brand{font-family:var(--font-display);font-size:19px;letter-spacing:.02em;margin-bottom:4px}.brand-sub{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--ink-soft);margin-bottom:28px}.nav-link{display:block;padding:9px 10px;border-radius:var(--radius);color:var(--ink-soft);text-decoration:none;font-size:14px;font-weight:500;margin-bottom:2px}.nav-link:hover{background:var(--accent-soft);color:var(--ink)}.nav-link.active{background:var(--accent);color:#fff}.sidebar-footer{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);font-size:12px;color:var(--ink-soft)}.logout-btn{background:none;border:none;color:var(--accent);font-size:13px;padding:0;cursor:pointer;margin-top:6px}.main{flex:1;padding:32px 40px;max-width:1000px}.page-header{margin-bottom:24px;display:flex;align-items:baseline;justify-content:space-between}.card{background:var(--paper-raised);border:1px solid var(--line);border-radius:var(--radius);padding:20px}.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:28px}.stat-card{background:var(--paper-raised);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px}.stat-label{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--ink-soft);margin-bottom:8px}.stat-value{font-family:var(--font-mono);font-size:26px;font-variant-numeric:tabular-nums}.stat-value.income{color:var(--income)}.stat-value.expense{color:var(--expense)}.ledger{width:100%;border-collapse:collapse}.ledger th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-soft);font-weight:500;padding:8px 10px;border-bottom:1px solid var(--line)}.ledger td{padding:10px;border-bottom:1px solid var(--line);font-size:14px}.ledger tr:last-child td{border-bottom:none}.amount{font-family:var(--font-mono);font-variant-numeric:tabular-nums;text-align:right;white-space:nowrap}.amount.income{color:var(--income)}.amount.expense{color:var(--expense)}.badge{display:inline-block;font-size:11px;padding:2px 8px;border-radius:100px;background:var(--accent-soft);color:var(--accent)}.badge.expense{background:var(--expense-soft);color:var(--expense)}.form-grid{display:grid;gap:14px;max-width:420px}.field label{display:block;font-size:12px;color:var(--ink-soft);margin-bottom:4px}.field-row{display:flex;gap:10px}.field input,.field select,.field textarea{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper-raised);color:var(--ink)}.btn{display:inline-block;padding:9px 16px;border-radius:var(--radius);border:1px solid var(--accent);background:var(--accent);color:#fff;font-weight:500;font-size:14px;cursor:pointer}.btn:hover{opacity:.92}.btn.secondary{background:transparent;color:var(--accent)}.btn.danger{background:transparent;border-color:var(--expense);color:var(--expense)}.btn:disabled{opacity:.5;cursor:not-allowed}.toolbar{display:flex;gap:10px;align-items:center;margin-bottom:16px;flex-wrap:wrap}.error-text{color:var(--expense);font-size:13px;margin-top:4px}.empty-state{text-align:center;padding:40px 20px;color:var(--ink-soft);font-size:14px}.login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--paper)}.login-card{width:340px;max-width:calc(100vw - 32px);background:var(--paper-raised);border:1px solid var(--line);border-radius:var(--radius);padding:32px}.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}@media (max-width: 860px){.app-shell{flex-direction:column}.mobile-topbar{display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:150;background:var(--paper-raised);border-bottom:1px solid var(--line);padding:12px 16px}.mobile-topbar-title{font-family:var(--font-display);font-size:17px}.hamburger-btn{display:flex;flex-direction:column;justify-content:center;gap:4px;width:32px;height:32px;background:none;border:none;padding:4px;cursor:pointer}.hamburger-btn span{display:block;height:2px;background:var(--ink);border-radius:1px}.sidebar-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#1e2a2273;z-index:190}.sidebar{position:fixed;top:0;left:0;height:100vh;width:min(280px,82vw);z-index:200;transform:translate(-100%);transition:transform .25s ease;box-shadow:4px 0 16px #0000002e;overflow-y:auto}.sidebar.open{transform:translate(0)}.sidebar-close-btn{display:block;align-self:flex-end;background:none;border:none;font-size:26px;line-height:1;color:var(--ink-soft);cursor:pointer;margin-bottom:8px;padding:4px 8px}.main{padding:20px 16px 40px;max-width:100%}.page-header{flex-wrap:wrap;gap:8px}.stat-row{grid-template-columns:1fr;gap:10px;margin-bottom:20px}.stat-value{font-size:22px}.form-grid{max-width:100%}.field-row{flex-direction:column;gap:14px}.toolbar{flex-direction:column;align-items:stretch}.toolbar .btn,.toolbar .btn.secondary{width:100%;text-align:center}.login-card{width:100%;padding:24px}}@media (max-width: 420px){.main{padding:16px 12px 32px}h1{font-size:21px}.card,.stat-card{padding:14px 16px}}