:root{--navy:#0a2342;--action:#006d68;--ink:#15324b;--muted:#526679;--line:#d5dee4;--mist:#f1f5f6;--paper:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft JhengHei",sans-serif;color:var(--ink);background:#f8faf9;font-size:16px;line-height:1.65}
*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit;color:inherit}button,a,input,select,textarea,summary{-webkit-tap-highlight-color:transparent}button,summary{cursor:pointer}button{min-height:44px}a{color:var(--action);text-underline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--action);outline-offset:3px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.skip{position:absolute;top:-100px;background:white;padding:10px;z-index:5}.skip:focus{top:0}
.site-header{display:flex;align-items:center;justify-content:space-between;max-width:1200px;padding:24px 32px;margin:auto}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--navy);font-weight:700;letter-spacing:.04em}.brand small{display:block;color:var(--muted);font-size:11px;font-weight:400;letter-spacing:.12em}.brand-symbol{display:grid;place-items:center;background:var(--navy);color:white;width:42px;height:42px;border-radius:10px;font-size:16px}.test-label{color:var(--muted);font-size:12px;border:1px solid var(--line);padding:4px 10px;border-radius:20px}.shell{max-width:1140px;margin:auto;padding:12px 32px 36px}.intro{padding:24px 0 36px}.eyebrow{color:var(--action);font-size:13px;letter-spacing:.12em}.intro h1{font-size:clamp(32px,4.4vw,48px);letter-spacing:-.04em;line-height:1.3;margin:12px 0 16px;font-weight:650}.intro>p:last-child{color:var(--muted);margin:0}.mobile-break{display:none}.workspace{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:28px;align-items:start}.composer,.ledger{background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:26px;min-width:0}.tabs{display:flex;border-bottom:1px solid var(--line);gap:24px;margin-bottom:22px}.tabs button{border:0;background:none;padding:0 0 12px;color:var(--muted);border-bottom:3px solid transparent;border-radius:0;font-weight:600}.tabs button[aria-pressed=true]{color:var(--action);border-color:var(--action)}label{display:block;font-size:14px;font-weight:600}input,textarea,select{display:block;width:100%;border:1px solid var(--line);background:#fff;border-radius:9px;padding:10px 12px;margin:8px 0 0;min-height:46px}textarea{resize:vertical;min-height:135px;line-height:1.8;font-size:17px}input[type=file]{font-size:13px}.hint{font-size:12px;color:var(--muted);margin:10px 0;line-height:1.7}.text-button{border:0;background:transparent;color:var(--action);font-size:13px;padding:6px 0;text-align:left}.text-button:disabled{color:var(--muted);opacity:.65;cursor:default}.primary{display:flex;align-items:center;justify-content:space-between;gap:14px;border:0;border-radius:10px;background:var(--action);color:white;width:100%;padding:13px 18px;margin-top:20px;font-weight:600}.primary:hover{background:#005751}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:14px}h2{font-size:18px;line-height:1.4;margin:0}.fields{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px}.wide{grid-column:1/-1}details{margin-top:18px}summary{font-size:13px;color:var(--muted);padding:8px 0}details[open] summary{margin-bottom:10px}.ledger-total{background:var(--mist);padding:20px;border-radius:12px}.ledger-total span,.ledger-total small{display:block;color:var(--muted);font-size:12px}.ledger-total strong{display:block;font-size:34px;font-weight:600;letter-spacing:-.04em;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}.records{padding:0;margin:12px 0 0;list-style:none;max-height:540px;overflow:auto}.records li{border-bottom:1px solid var(--line);padding:16px 0}.record-top{display:flex;gap:16px;justify-content:space-between}.record-top strong{font-size:14px;overflow-wrap:anywhere;min-width:0}.record-top b{font-variant-numeric:tabular-nums;white-space:nowrap;font-size:15px;font-weight:600}.record-meta{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:12px;color:var(--muted);margin-top:4px}.remove{color:var(--muted);font-size:12px}.empty{padding:44px 20px;text-align:center;color:var(--muted);font-size:14px}.message:empty{display:none}.message{font-size:13px;margin:16px 0 0}.message[data-error=true]{color:#a52a2a}.about{max-width:670px;margin-top:30px;color:var(--muted);font-size:13px}.upload-label{border:1px dashed var(--line);border-radius:12px;padding:16px;text-align:center;background:var(--mist)}.upload-label small{display:block;font-size:12px;font-weight:400;color:var(--muted)}#imagePreview{margin:14px 0}#receiptImage{display:block;max-height:220px;max-width:100%;border-radius:8px}footer{text-align:center;color:var(--muted);font-size:12px;padding:20px 24px 32px}
@media(max-width:760px){.site-header{padding:18px 20px}.shell{padding:0 20px 24px}.intro{padding:22px 0 26px}.intro h1{font-size:36px}.workspace{grid-template-columns:1fr;gap:20px}.composer,.ledger{padding:20px;border-radius:16px}.test-label{font-size:10px}.mobile-break{display:block}.intro>p:last-child{font-size:14px}.section-heading h2{font-size:17px}.ledger-total strong{font-size:30px}}
@media(max-width:360px){.fields{grid-template-columns:1fr}.wide{grid-column:auto}.site-header{gap:10px}.test-label{max-width:80px;text-align:center}.shell{padding-left:14px;padding-right:14px}}
.tool-links{display:flex;flex-wrap:wrap;gap:12px 24px;max-width:1200px;padding:0 32px 10px;margin:auto;font-size:13px}.tool-links a{color:var(--action);padding:8px 0}.tool-links a:focus-visible{outline:2px solid var(--action);outline-offset:4px}
@media(max-width:760px){.tool-links{padding:0 20px 8px;gap:8px 16px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
.section-heading>div{display:flex;gap:14px;align-items:center}.backup-panel{margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}.backup-panel h3{font-size:15px;margin:0}.backup-panel>p:not(.hint){font-size:13px;color:var(--muted);margin:8px 0 12px}.restore-label{margin-top:14px;border:1px dashed var(--line);border-radius:10px;padding:12px;background:var(--mist)}