:root{color-scheme:dark;--bg:#111318;--card:#1b1f2a;--muted:#8d96a8;--text:#f3f6fb;--accent:#62d0ff;--danger:#ff6b6b;--ok:#8df09a}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Inter,Segoe UI,sans-serif}main{max-width:720px;margin:0 auto;padding:18px 14px 32px}header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}h1,h2,p{margin:0}h1{font-size:30px}h2{font-size:18px;margin-bottom:12px}.eyebrow{color:var(--muted);font-size:13px;margin-bottom:4px}button,input,select{border:0;border-radius:14px;font:inherit}button{background:#2a3040;color:var(--text);padding:12px 14px}button:active{transform:scale(.98)}input,select{width:100%;background:#111722;color:var(--text);padding:14px;margin:6px 0;border:1px solid #2a3142}.grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px}.grid article,.card{background:var(--card);border:1px solid #2a3142;border-radius:22px;padding:16px;box-shadow:0 10px 30px rgba(0,0,0,.18)}.grid span{display:block;color:var(--muted);font-size:13px}.grid strong{display:block;margin-top:7px;font-size:20px}.card{margin:12px 0}.tabs{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:8px}.tabs button.active,.primary{background:linear-gradient(135deg,#38bdf8,#2563eb);color:white}.row{display:grid;grid-template-columns:1fr 1fr auto;gap:8px;align-items:center}.row input{margin:6px 0}.row:nth-of-type(2){grid-template-columns:1fr 1fr auto}.list{display:grid;gap:8px}.item{display:flex;align-items:center;justify-content:space-between;gap:10px;background:#121722;border-radius:16px;padding:12px}.item small{color:var(--muted);display:block;margin-top:3px}.debt{align-items:stretch;flex-direction:column}.debt-info{min-width:0}.debt-actions{display:grid;grid-template-columns:1fr auto auto;gap:8px;align-items:center}.debt-actions input{margin:0;min-width:0}.repay{font-size:13px;padding:9px 11px;background:#1f5f8b}.delete{font-size:13px;padding:9px 11px;background:#4a2029;color:#ffd6dc}.undo{font-size:13px;padding:9px 11px}.undo:disabled{opacity:.45}.action.undone{opacity:.65}.empty{color:var(--muted)}details{margin-top:12px}summary{color:var(--accent);padding:8px 0;cursor:pointer}@media(max-width:420px){.row,.row:nth-of-type(2),.debt-actions{grid-template-columns:1fr}.grid strong{font-size:18px}}