:root{--bg:#f6f7f9;--card:#fff;--ink:#17202a;--muted:#6b7280;--line:#e5e7eb;--accent:#0f766e;--accent-ink:#fff;--danger:#b91c1c;--pos:#047857;--neg:#b91c1c;--radius:12px;color:var(--ink);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}body{background:var(--bg);margin:0}a{color:var(--accent);text-decoration:none}h1,h2,h3{margin:0 0 8px;line-height:1.2}h1{font-size:26px}h2{font-size:19px}h3{color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-size:15px}p{margin:0 0 12px}.muted{color:var(--muted);font-size:14px}.pos{color:var(--pos);font-weight:600}.neg{color:var(--neg);font-weight:600}.container{max-width:720px;margin:0 auto;padding:20px 16px 60px}.topbar{background:var(--card);border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:14px 16px;display:flex}.topbar .brand{letter-spacing:-.01em;color:var(--ink);font-size:18px;font-weight:800}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:16px;padding:18px}.row{align-items:center;gap:10px;display:flex}.row.between{justify-content:space-between}.stack{flex-direction:column;gap:10px;display:flex}.grid2{grid-template-columns:1fr 1fr;gap:10px;display:grid}@media (width<=520px){.grid2{grid-template-columns:1fr}}label{color:var(--muted);margin-bottom:4px;font-size:13px;display:block}input,select,textarea{width:100%;font:inherit;border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:8px;padding:10px 12px}input:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:#0000}input[type=checkbox]{width:auto;margin-right:8px}button{font:inherit;cursor:pointer;background:var(--accent);color:var(--accent-ink);border:1px solid #0000;border-radius:8px;padding:10px 16px;font-weight:600}button.secondary{color:var(--ink);border-color:var(--line);background:#fff}button.danger{color:var(--danger);background:#fff;border-color:#fecaca}button.link{color:var(--accent);background:0 0;border:0;padding:0;font-weight:500}button:disabled{opacity:.5;cursor:default}button.small{padding:6px 10px;font-size:13px}.tabs{border-bottom:1px solid var(--line);gap:4px;margin-bottom:16px;display:flex;overflow-x:auto}.tabs a{color:var(--muted);white-space:nowrap;border-bottom:2px solid #0000;padding:10px 12px}.tabs a.active{color:var(--ink);border-bottom-color:var(--accent);font-weight:600}.list{flex-direction:column;display:flex}.list-item{border-top:1px solid var(--line);justify-content:space-between;align-items:center;gap:12px;padding:12px 0;display:flex}.list-item:first-child{border-top:0}.list-item .main{flex:1;min-width:0}.list-item .title{font-weight:600}.list-item .sub{color:var(--muted);font-size:13px}.amount{font-variant-numeric:tabular-nums;white-space:nowrap;font-weight:600}.pill{color:var(--muted);background:#eef2f7;border-radius:999px;padding:2px 8px;font-size:12px;display:inline-block}.pill.warn{color:#9a3412;background:#fff7ed}.pill.ok{color:#065f46;background:#ecfdf5}.error{color:var(--danger);margin-top:8px;font-size:14px}.notice{color:#065f46;background:#ecfdf5;border:1px solid #a7f3d0;border-radius:8px;padding:10px 12px;font-size:14px}.checks{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:6px;display:grid}.checks label{color:var(--ink);align-items:center;margin:0;font-size:14px;display:flex}table{border-collapse:collapse;width:100%;font-size:14px}th,td{text-align:left;border-top:1px solid var(--line);padding:8px 6px}th{color:var(--muted);text-transform:uppercase;letter-spacing:.04em;border-top:0;font-size:12px;font-weight:500}td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}.center{text-align:center}.amount-entry{border-bottom:2px solid var(--line);align-items:baseline;gap:8px;padding:6px 0;display:flex}.amount-entry:focus-within{border-bottom-color:var(--accent)}.amount-cur{color:var(--muted);font-size:18px;font-weight:600}.amount-input{font-variant-numeric:tabular-nums;width:100%;padding:0;font-size:40px;font-weight:700;border:0!important;outline:none!important}.amount-input::placeholder{color:#cbd5e1}.amount-input::-webkit-outer-spin-button{-webkit-appearance:none}.amount-input::-webkit-inner-spin-button{-webkit-appearance:none}.checks label{border:1px solid var(--line);cursor:pointer;border-radius:8px;padding:8px 10px}.checks label.on{border-color:var(--accent);background:#f0fdfa}.fab{z-index:20;border-radius:50%;justify-content:center;align-items:center;width:56px;height:56px;padding:0;font-size:30px;line-height:1;display:none;position:fixed;bottom:24px;right:20px;box-shadow:0 6px 16px #0000002e}@media (width<=720px){.fab{display:flex}}.pill.paid{color:#065f46;background:#ecfdf5}.pill.due{color:#9a3412;background:#fff7ed}.paydetails{color:var(--muted);margin-top:4px;font-size:13px;line-height:1.5}.paydetails a{font-weight:600}.share-input{text-align:right;font-variant-numeric:tabular-nums;color:var(--muted);font-size:14px;width:92px!important;padding:4px 6px!important}.share-input.locked{color:var(--ink);border-color:var(--accent);font-weight:600}.share-input::-webkit-outer-spin-button{-webkit-appearance:none}.share-input::-webkit-inner-spin-button{-webkit-appearance:none}.landing .hero{padding:28px 0 16px}.landing .hero h1{letter-spacing:-.02em;font-size:34px}.landing .lede{color:var(--muted);font-size:17px}.usecases,.how{margin-top:28px}.usecase-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px;display:grid}.usecase{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}.usecase-title{margin-bottom:2px;font-weight:700}.steps{flex-direction:column;gap:10px;margin:0;padding-left:20px;font-size:15px;display:flex}.btn{border:1px solid var(--line);color:var(--ink);background:#fff;border-radius:8px;padding:10px 16px;font-weight:600;display:inline-block}input,select,textarea,button:not(.link):not(.small){min-height:44px}.checks label{min-height:48px}.fab{width:60px;height:60px}@media (width<=520px){.stack{gap:14px}.card{padding:18px 16px}}.stats{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px;margin-bottom:14px;display:grid}.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px}.stat-label{color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-size:12px}.stat-value{font-variant-numeric:tabular-nums;word-break:break-word;margin:2px 0;font-size:24px;font-weight:700}.stat .muted{font-size:12px}h3{margin-top:22px}