:root{--bg:#f5f6f8;--card:#fff;--ink:#14181f;--muted:#5d6878;--line:#e2e5ea;--brand:#0f766e;--brand-ink:#fff;--red:#b42318;--red-bg:#fdecea;--note:#fff6d1;--note-line:#ecd277;--ok:#127a3a;--ok-bg:#e6f6ec;--blue:#1d4ed8}
@media (prefers-color-scheme:dark){:root{--bg:#0e1115;--card:#171b21;--ink:#eef1f5;--muted:#9aa4b2;--line:#2a3038;--brand:#2dd4bf;--brand-ink:#03211d;--red:#ff8a7a;--red-bg:#2b1714;--note:#2a2410;--note-line:#6e5c1c;--ok:#5ee08f;--ok-bg:#10261a;--blue:#93b4ff}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-tap-highlight-color:transparent}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
[hidden]{display:none!important}
.wrap{max-width:900px;margin:0 auto;padding:16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px}
.muted{color:var(--muted)}
.small{font-size:14px}
h1{font-size:24px;margin:0 0 4px}
h2{font-size:20px;margin:0 0 10px}
label{display:block;font-size:14px;font-weight:600;color:var(--muted);margin:14px 0 6px}
.input{width:100%;padding:13px 14px;border-radius:12px;border:1px solid var(--line);background:var(--bg);font-size:18px}
.input:focus{outline:3px solid color-mix(in srgb,var(--brand) 35%,transparent);border-color:var(--brand)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 18px;border-radius:12px;font-weight:700;background:var(--bg);border:1px solid var(--line)}
a.btn{color:inherit;text-decoration:none}
.btn.main{background:var(--brand);color:var(--brand-ink);border-color:var(--brand)}
.btn.danger{color:var(--red)}
.btn.wide{width:100%}
.btn:disabled{opacity:.45;cursor:default}
.btn:focus-visible,.row:focus-visible,.tab:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.err{color:var(--red);font-weight:600;margin-top:12px;min-height:1px}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:12px 18px;border-radius:12px;z-index:50;font-weight:600;max-width:90vw;text-align:center}
.note{background:var(--note);border:1px solid var(--note-line);border-radius:14px;padding:14px 16px;white-space:pre-wrap}
.tag{display:inline-block;font-size:12px;font-weight:700;padding:2px 8px;border-radius:99px;border:1px solid var(--line);color:var(--muted);white-space:nowrap}
.tag.red{color:var(--red);border-color:var(--red)}
.tag.ok{color:var(--ok);border-color:var(--ok)}

/* login */
.center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px}
.center .card{width:100%;max-width:420px}

/* desk */
.desk-top{position:sticky;top:0;z-index:5;background:var(--bg);padding:14px 16px 12px;border-bottom:1px solid var(--line)}
.desk-top .in{max-width:900px;margin:0 auto}
.desk-name{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px;font-weight:700}
.search{width:100%;font-size:26px;padding:16px 18px;border-radius:16px;border:2px solid var(--line);background:var(--card)}
.search:focus{outline:none;border-color:var(--brand)}
.list{display:flex;flex-direction:column;gap:8px}
.row{display:flex;align-items:center;gap:12px;width:100%;text-align:left;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px;min-height:68px}
.row .n{font-size:21px;font-weight:650;flex:1;min-width:0}
.row .r{font-size:14px;color:var(--muted);font-weight:400;display:block}
.row .a{font-size:20px;font-weight:750;white-space:nowrap}
.row .a.paid{color:var(--ok);font-size:16px}
.row.over{border-color:var(--red)}
.row.over .a{color:var(--red)}
.empty{text-align:center;color:var(--muted);padding:40px 10px;font-size:18px}
.view{position:fixed;inset:0;z-index:10;background:var(--bg);display:flex;flex-direction:column}
.view .body{flex:1;overflow:auto;padding:16px 16px 8px;max-width:700px;width:100%;margin:0 auto}
.view .foot{padding:12px 16px max(16px,env(safe-area-inset-bottom));max-width:700px;width:100%;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.back{font-size:19px;font-weight:700;color:var(--brand);padding:8px 0}
.view p{margin:0}
.view .body > p + p{margin-top:2px}
.view .body > p.label{margin-top:22px}
.who{font-size:30px;font-weight:800;margin:6px 0 2px;line-height:1.15}
.label{margin-top:18px;font-size:15px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.amount{font-size:clamp(56px,16vw,96px);font-weight:850;line-height:1.05;font-variant-numeric:tabular-nums}
.for{font-size:clamp(26px,7vw,40px);font-weight:800;margin-top:4px}
.for.over{color:var(--red)}
.view .note{margin-top:16px;font-size:20px}
.also{margin-top:12px;background:var(--red-bg);border:1px solid var(--red);color:var(--ink);border-radius:14px;padding:14px 16px;font-size:20px}
.also b{color:var(--red)}
.paybtn{padding:24px 10px;font-size:23px;border-radius:18px;font-weight:800;background:var(--brand);color:var(--brand-ink)}
.paybtn.cash{background:var(--ink);color:var(--bg)}
.done-view{background:var(--ok-bg)}
.done-view .tick{font-size:84px;color:var(--ok);line-height:1;margin-top:20px}
.done-view .who{color:var(--ok)}
.done-view .btn{margin-top:18px}
.bigline{font-size:24px;font-weight:700;margin-top:10px}
.foot.one{grid-template-columns:1fr}
.foot .paybtn.full{grid-column:1/-1}

/* admin + owner */
.top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.top h1{flex:1;min-width:200px}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin:6px 0 14px}
.tab{padding:9px 14px;border-radius:99px;border:1px solid var(--line);background:var(--card);font-weight:600}
.tab.on{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.badge{display:inline-block;min-width:22px;padding:0 7px;margin-left:6px;border-radius:99px;background:var(--red);color:#fff;font-size:13px;line-height:22px;text-align:center}
.pay-item{display:flex;gap:12px;align-items:center;flex-wrap:wrap;padding:14px 0;border-bottom:1px solid var(--line)}
.pay-item .info{flex:1;min-width:220px}
.pay-item .big{font-size:19px;font-weight:700}
.pay-item.void .info{text-decoration:line-through;opacity:.55}
.alert{border:2px solid var(--red);background:var(--red-bg)}
table.t{width:100%;border-collapse:collapse;font-size:15px}
.t th{text-align:left;font-size:13px;color:var(--muted);font-weight:700;padding:8px 6px;border-bottom:1px solid var(--line)}
.t td{padding:10px 6px;border-bottom:1px solid var(--line);vertical-align:top}
.t tr.off td{opacity:.55}
.t .num{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
.t .notecell{white-space:pre-wrap;max-width:280px}
.edit-row td{background:var(--bg)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:640px){.grid2{grid-template-columns:1fr}.t .hide-sm{display:none}}
.section{margin-bottom:16px}
.linkbox{word-break:break-all;background:var(--bg);border:1px dashed var(--line);border-radius:10px;padding:10px;font-size:14px;margin:6px 0}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}

/* desk: add a charge */
.rowwrap{display:flex;gap:8px;align-items:stretch}
.rowwrap .row{flex:1;min-width:0}
.plus{flex:none;width:56px;border-radius:14px;border:1px solid var(--line);background:var(--card);font-size:34px;font-weight:500;line-height:1;color:var(--brand)}
.plus:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.items{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;margin-top:18px}
.itembtn{display:flex;flex-direction:column;align-items:flex-start;gap:4px;padding:20px;border-radius:16px;border:2px solid var(--line);background:var(--card);text-align:left;min-height:96px}
.itembtn span{font-size:22px;font-weight:800}
.itembtn b{font-size:20px;color:var(--brand)}
.itembtn.other b{color:var(--muted);font-weight:600}
.itembtn:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.addlink{margin-top:18px}
#otherForm .paybtn{width:100%;margin-top:16px}

/* desk: new child, totals, notes */
.searchrow{display:flex;gap:8px}
.searchrow .search{flex:1;min-width:0}
.newkid{flex:none;padding:0 16px;border-radius:16px;border:2px solid var(--line);background:var(--card);font-weight:700;color:var(--brand);font-size:17px}
.newkid:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
@media (max-width:420px){.newkid{font-size:15px;padding:0 10px}}
.tag.new{color:var(--blue);border-color:var(--blue);margin-left:6px;vertical-align:3px}
.breakdown{margin-top:10px;border-top:1px solid var(--line)}
.breakdown div{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px solid var(--line);font-size:19px}
.breakdown span.small{color:var(--muted)}
.breakdown b{font-variant-numeric:tabular-nums}
.snotes{margin-top:12px;border:1px solid var(--line);border-radius:14px;padding:12px 16px;background:var(--card)}
.snotes p{margin:6px 0 !important;font-size:18px}
.snotes .small{font-size:13px}
.view .acts{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.view form .paybtn{width:100%;margin-top:16px}
.empty .btn{margin-top:12px}
.joinpick{width:auto;max-width:280px;padding:8px 10px;font-size:14px}