:root{--brand: #2f8f8a;--brand-dark: #267470;--bg: #f4f7f7;--surface: #ffffff;--text: #1f2a2a;--muted: #6b7c7c;--warn: #d98a3a;--line: #e3eceb;--radius: 14px}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans JP,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.center,.screen{max-width:480px;margin:0 auto;min-height:100%}.center{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:24px;text-align:center}.muted{color:var(--muted)}.sm{font-size:13px}.error{color:#c0392b;font-size:13px;word-break:break-all}.btn{width:100%;border:none;border-radius:999px;padding:14px 18px;font-size:15px;font-weight:600;cursor:pointer}.btn.primary{background:var(--brand);color:#fff}.btn.primary:active{background:var(--brand-dark)}.btn.ghost{background:transparent;color:var(--brand);border:1px solid var(--line)}.onboarding{display:flex;flex-direction:column;justify-content:center;gap:24px;padding:32px 24px}.brand{text-align:center}.logo{font-size:34px;font-weight:800;color:var(--brand);letter-spacing:1px}.logo.sm{font-size:20px}.tagline{margin:8px 0 0;color:var(--muted);font-size:14px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;display:flex;flex-direction:column;gap:12px}.lead{margin:0;font-size:14px;line-height:1.7}.foot{text-align:center;margin:0}.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0}.who{display:flex;align-items:center;gap:8px;font-size:14px}.avatar{width:28px;height:28px;border-radius:50%}.banner{background:#fff7ec;color:var(--warn);font-size:12px;padding:8px 18px;text-align:center}.content{padding:16px 18px 96px}.section{font-size:14px;color:var(--muted);margin:22px 4px 8px;font-weight:700}.content .section:first-child{margin-top:6px}.status .row{display:flex;align-items:center;justify-content:space-between}.label{font-weight:600}.amount{font-size:28px;font-weight:800;color:var(--brand-dark)}.badge{font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;white-space:nowrap}.badge.paid{background:#fdeed9;color:var(--warn)}.badge.done{background:#e3f3ef;color:var(--brand-dark)}.badge.plan{background:#eef1ff;color:#4a5ad8}.todo{display:flex;align-items:center;gap:10px;font-size:14px;padding:4px 0}.dot{width:8px;height:8px;border-radius:50%;background:var(--brand);flex:none}.dot.warn{background:var(--warn)}.list{gap:0;padding:4px 18px}.item{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}.item:last-child{border-bottom:none}.chain{text-align:center;margin-top:18px}.tabbar{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:480px;display:flex;background:var(--surface);border-top:1px solid var(--line);padding:8px 0 calc(8px + env(safe-area-inset-bottom))}.tab{flex:1;text-align:center;font-size:11px;color:var(--muted)}.tab.active{color:var(--brand);font-weight:700}.logout{width:auto;margin:0 18px 90px}.divider{text-align:center;color:var(--muted);font-size:12px;margin:4px 0;position:relative}.field{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}.field-label{font-size:13px;color:var(--muted)}.field-row{display:flex;gap:12px}.field-row .field{flex:1}.input{width:100%;box-sizing:border-box;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:16px;color:var(--text);background:#fff}.input:focus{outline:none;border-color:var(--brand)}.chips{display:flex;gap:8px}.chips.wrap{flex-wrap:wrap}.chip{padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--text);font-size:13px;font-weight:600}.chip.active{background:var(--brand);color:#fff;border-color:var(--brand)}.section-row{display:flex;align-items:center;justify-content:space-between}.section-row .section{margin:22px 4px 8px}.btn-inline{border:none;background:none;color:var(--brand);font-size:13px;font-weight:700;padding:4px 8px}.cat-tag{display:inline-block;background:#e3f3ef;color:var(--brand-dark);font-size:11px;font-weight:700;padding:2px 8px;border-radius:999px;margin-right:8px}.sheet-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#1f2a2a66;display:flex;align-items:flex-end;justify-content:center;z-index:20}.sheet{width:100%;max-width:480px;background:var(--surface);border-radius:18px 18px 0 0;padding:20px 18px calc(24px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:12px;max-height:90vh;overflow-y:auto}.sheet-title{margin:0;font-size:17px;color:var(--text)}