*,:before,:after{box-sizing:border-box}:root{--bg:#f2f2f7;--surface:#fff;--border:#e5e5ea;--text:#1c1c1e;--text-muted:#8e8e93;--accent:#007aff;-webkit-font-smoothing:antialiased;font-family:system-ui,-apple-system,Segoe UI,sans-serif;font-size:16px}@media (prefers-color-scheme:dark){:root{--bg:#000;--surface:#1c1c1e;--border:#38383a;--text:#f2f2f7;--text-muted:#636366;--accent:#0a84ff}}body{background:var(--bg);color:var(--text);margin:0}#root{height:100svh}h2{color:var(--text);margin:0 0 4px;font-size:20px;font-weight:700}h3{color:var(--text)}p{margin:0}select{appearance:none}.app{background:var(--bg);flex-direction:column;height:100svh;display:flex}.main-content{flex:1;padding-bottom:72px;overflow-y:auto}.bottom-nav{background:var(--surface);border-top:1px solid var(--border);padding-bottom:env(safe-area-inset-bottom);z-index:100;display:flex;position:fixed;bottom:0;left:0;right:0}.nav-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;flex-direction:column;flex:1;align-items:center;gap:2px;padding:10px 0;font-size:11px;transition:color .2s;display:flex}.nav-btn.active{color:var(--accent)}.nav-icon{font-size:22px}.page{max-width:480px;margin:0 auto;padding:16px}.month-header{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.month-header h2{text-transform:capitalize;margin:0}.total-badge{flex-direction:column;align-items:flex-end;display:flex}.total-badge.large{background:var(--surface);border-radius:16px;align-items:center;margin-bottom:20px;padding:16px 24px}.total-label{color:var(--text-muted);font-size:12px}.total-amount{color:var(--text);font-size:22px;font-weight:700}.btn{cursor:pointer;border:none;border-radius:12px;width:100%;padding:12px;font-size:15px;font-weight:600;transition:opacity .2s;display:block}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){opacity:.88}.add-toggle{margin-bottom:12px}.add-form{background:var(--surface);border-radius:16px;flex-direction:column;gap:10px;margin-bottom:16px;padding:16px;display:flex}.form-row{gap:10px;display:flex}.input{border:1px solid var(--border);background:var(--bg);width:100%;color:var(--text);box-sizing:border-box;border-radius:10px;padding:10px 12px;font-size:15px}.input:focus{border-color:var(--accent);outline:none}.amount-input{flex:1.4}.tx-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.tx-item{background:var(--surface);border-radius:12px;align-items:center;gap:10px;padding:12px;display:flex}.tx-icon{flex-shrink:0;font-size:22px}.tx-info{flex-direction:column;flex:1;min-width:0;display:flex}.tx-desc{color:var(--text);white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:500;overflow:hidden}.tx-date{color:var(--text-muted);font-size:12px}.tx-amount{color:var(--text);white-space:nowrap;font-size:15px;font-weight:700}.btn-delete{color:var(--text-muted);cursor:pointer;opacity:.5;background:0 0;border:none;flex-shrink:0;padding:4px;font-size:14px;transition:opacity .2s}.btn-delete:hover{opacity:1;color:#f87171}.period-label{color:var(--text-muted);text-transform:capitalize;margin-bottom:16px;font-size:14px}.chart-section{background:var(--surface);border-radius:16px;margin-bottom:16px;padding:16px}.chart-section h3{margin:0 0 12px;font-size:15px;font-weight:600}.cat-list{flex-direction:column;gap:10px;margin:0;padding:0;list-style:none;display:flex}.cat-item{align-items:center;gap:10px;font-size:14px;display:flex}.cat-bar-wrap{background:var(--border);border-radius:4px;flex:1;height:8px;overflow:hidden}.cat-bar{border-radius:4px;height:100%;transition:width .4s;display:block}.cat-name{min-width:120px;color:var(--text)}.cat-amount{color:var(--text);white-space:nowrap;font-weight:600}.empty,.loading{text-align:center;color:var(--text-muted);padding:40px 0;font-size:14px}