:root{
  --bg:#eef1f2; --surface:#ffffff; --surface-2:#f5f7f8; --line:#d5dcdf; --fg:#18262c; --muted:#5b6b72;
  --accent:#0d5c63; --accent-fg:#ffffff; --accent-soft:#dcecee;
  --open:#a15c07; --open-soft:#fbeed8; --closed:#1f7a3d; --closed-soft:#dcf1e3; --danger:#b42318;
  --paper:#ffffff; --paper-ink:#141c20; --paper-line:#222c31; --paper-muted:#55636a; --paper-head:#e7eef0;
  --f-display:"Readex Pro","IBM Plex Sans Arabic",Tahoma,sans-serif;
  --f-body:"IBM Plex Sans Arabic",Tahoma,"Segoe UI",sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root{
  --bg:#0f1719; --surface:#172225; --surface-2:#1d2a2e; --line:#2c3c41; --fg:#e4ecee; --muted:#93a4aa;
  --accent:#4fb3ba; --accent-fg:#06272a; --accent-soft:#1b3a3d;
  --open:#f0b257; --open-soft:#3a2c14; --closed:#6fd08f; --closed-soft:#173323; --danger:#f97066;
  color-scheme:dark}}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--fg);font-family:var(--f-body);font-size:14px;line-height:1.6}
[hidden]{display:none!important}
.wrap{max-width:1360px;margin:0 auto;padding-block:16px 40px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2,h3{font-family:var(--f-display);text-wrap:balance;margin:0}
.num{font-variant-numeric:tabular-nums;direction:ltr;unicode-bidi:isolate}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.muted{color:var(--muted)} .small{font-size:12.5px}

/* auth */
.center-screen{min-height:100vh;display:grid;place-items:center;padding:16px}
.auth-card{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:28px 24px;display:flex;flex-direction:column;gap:12px}
.auth-card h1{font-size:22px;text-align:center}
.auth-card p{text-align:center;margin:0 0 6px}
.brand-mark.big{width:52px;height:52px;font-size:24px;margin:0 auto}
.err{background:color-mix(in srgb,var(--danger) 12%,transparent);color:var(--danger);border-radius:8px;padding:8px 12px;font-size:13px}
.wide{width:100%;justify-content:center}
.spinner{width:34px;height:34px;border:3px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* top bar */
.top{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;margin-bottom:16px}
.brand{display:flex;align-items:center;gap:10px;margin-inline-end:auto}
.brand-mark{width:38px;height:38px;border-radius:8px;background:var(--accent);color:var(--accent-fg);display:grid;place-items:center;font-family:var(--f-display);font-weight:700;font-size:18px}
.brand h1{font-size:19px}
.brand small{display:block;color:var(--muted);font-size:12px;font-weight:400;font-family:var(--f-body)}
.tabs{display:flex;flex-wrap:wrap;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:3px}
.tab{border:0;background:none;padding:6px 16px;border-radius:7px;color:var(--muted);font-weight:600}
.tab[aria-selected="true"]{background:var(--accent);color:var(--accent-fg)}
.who{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted)}
.btn{border:1px solid var(--line);background:var(--surface);padding:7px 14px;border-radius:8px;font-weight:600;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-fg)}
.btn.ghost{background:none;border-color:transparent;color:var(--muted)}
.btn.danger{color:var(--danger)}
.btn:disabled{opacity:.5;cursor:default}
.btn.sm{padding:4px 10px;font-size:12.5px}

/* bench */
.bench{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px;align-items:start}
@media (max-width:1000px){.bench{grid-template-columns:minmax(0,1fr)}}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:18px;min-width:0}
.panel + .panel{margin-top:16px}
.panel h2{font-size:15px;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.panel h2 .hint{font-family:var(--f-body);font-weight:400;font-size:12px;color:var(--muted);margin-inline-start:auto}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px 12px}
label.f,div.f{display:flex;flex-direction:column;gap:3px;font-size:12px;color:var(--muted);font-weight:500}
.inp{border:1px solid var(--line);background:var(--surface-2);border-radius:7px;padding:7px 9px;width:100%;min-width:0;font-size:14px}
.inp:focus{border-color:var(--accent);outline:none;background:var(--surface)}
.inp.num{text-align:left}
.inp[readonly]{opacity:.8}

/* items */
.items-scroll{overflow-x:auto;margin-inline:-4px;padding-inline:4px}
table.items{width:100%;border-collapse:separate;border-spacing:0 6px;min-width:560px}
table.items th{font-size:11.5px;color:var(--muted);font-weight:600;text-align:start;padding:0 4px}
table.items td{padding:0 3px;vertical-align:middle}
table.items td.idx{width:26px;color:var(--muted);font-size:12px;text-align:center}
table.items .c-name{width:34%} table.items .c-usd{width:15%} table.items .c-amt{width:20%}
table.items .inp{padding:6px 8px}
.row-usd .inp.amt{background:var(--accent-soft);border-color:transparent;color:var(--fg)}
.del{border:0;background:none;color:var(--muted);font-size:18px;line-height:1;padding:4px 6px;border-radius:6px}
.del:hover{color:var(--danger);background:var(--surface-2)}
.items-foot{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}

/* totals */
.totals{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
.tot{background:var(--surface-2);border-radius:9px;padding:10px 12px;min-width:0}
.tot span{display:block;font-size:12px;color:var(--muted)}
.tot b{font-family:var(--f-display);font-size:19px;font-weight:600}
.tot.due{background:var(--open-soft)} .tot.due b{color:var(--open)}
.tot.zero{background:var(--closed-soft)} .tot.zero b{color:var(--closed)}
.words{margin-top:10px;font-size:13px;color:var(--muted);background:var(--surface-2);border-radius:8px;padding:8px 12px}
.words:empty{display:none}
.status-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:14px}
.audit{margin-top:8px;font-size:12px;color:var(--muted)}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.seg button{border:0;background:var(--surface);padding:6px 14px;font-weight:600;color:var(--muted)}
.seg button[aria-pressed="true"].o{background:var(--open-soft);color:var(--open)}
.seg button[aria-pressed="true"].c{background:var(--closed-soft);color:var(--closed)}

/* paper */
.preview-col{position:sticky;top:12px}
@media (max-width:1000px){.preview-col{position:static}}
.preview-head{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:10px}
.preview-head h2{font-size:15px;margin-inline-end:auto}
.paper-scroll{overflow:hidden;background:var(--paper);border-radius:6px;box-shadow:0 1px 2px rgba(0,0,0,.08),0 8px 24px rgba(10,40,45,.10)}
.sheet{width:794px;min-height:1000px;background:var(--paper);color:var(--paper-ink);padding:44px 48px;font-family:var(--f-body);font-size:14px;line-height:1.55;position:relative;margin:0 auto}
.sh-office{display:flex;justify-content:space-between;align-items:flex-start;border-bottom:2px solid var(--paper-line);padding-bottom:12px;margin-bottom:14px;gap:20px}
.sh-office .on{font-family:var(--f-display);font-weight:700;font-size:20px}
.sh-office .os{color:var(--paper-muted);font-size:12.5px}
.sh-title{font-family:var(--f-display);font-size:24px;font-weight:700;text-align:center;margin:4px 0 16px}
.sh-meta{display:grid;grid-template-columns:1fr 1fr;gap:5px 30px;margin:0 0 18px;font-size:14px}
.sh-meta div{display:flex;gap:6px;border-bottom:1px dotted #b7c2c6;padding-bottom:3px}
.sh-meta dt{font-weight:700;white-space:nowrap}
.sh-meta dd{margin:0}
table.sh{width:100%;border-collapse:collapse;font-size:13.5px}
table.sh th{background:var(--paper-head);font-weight:700;border:1px solid var(--paper-line);padding:6px 8px}
table.sh td{border:1px solid var(--paper-line);padding:5px 8px;vertical-align:middle}
table.sh td.m{width:38px;text-align:center}
table.sh td.amt{width:130px;text-align:center;font-weight:600}
table.sh td.rc{width:190px;text-align:center;font-size:12.5px;word-break:break-word}
table.sh tr.total td{font-weight:700;background:var(--paper-head);font-size:15px}
.sh-words{margin-top:8px;font-size:13px;font-weight:600}
.sh-bottom{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:20px;align-items:start}
table.sh.small td{padding:4px 8px}
.sh-sign{display:flex;justify-content:space-between;margin-top:48px;font-size:13px;color:var(--paper-muted)}
.sh-sign div{border-top:1px solid var(--paper-line);padding-top:6px;width:200px;text-align:center}
.stamp{position:absolute;top:120px;left:60px;transform:rotate(-14deg);border:3px solid #1f7a3d;color:#1f7a3d;font-family:var(--f-display);font-weight:700;font-size:22px;padding:4px 18px;border-radius:8px;opacity:.85}
.sh-note{margin-top:14px;font-size:12.5px;color:var(--paper-muted);white-space:pre-wrap}

/* archive & users */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;margin-bottom:16px}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.kpi span{color:var(--muted);font-size:12.5px}
.kpi b{display:block;font-family:var(--f-display);font-size:24px;font-weight:600}
.kpi.warn b{color:var(--open)}
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:12px;align-items:center}
.filters .inp{max-width:340px}
.list-scroll{overflow-x:auto}
table.arch{width:100%;border-collapse:collapse;min-width:720px}
table.arch th{font-size:12px;color:var(--muted);text-align:start;font-weight:600;padding:8px 10px;border-bottom:1px solid var(--line)}
table.arch td{padding:10px;border-bottom:1px solid var(--line)}
table.arch tr:hover td{background:var(--surface-2)}
.chip{display:inline-block;font-size:12px;font-weight:600;padding:2px 10px;border-radius:99px}
.chip.open{background:var(--open-soft);color:var(--open)}
.chip.closed{background:var(--closed-soft);color:var(--closed)}
.empty{text-align:center;color:var(--muted);padding:40px 16px}
.empty b{display:block;color:var(--fg);font-family:var(--f-display);font-size:16px;margin-bottom:4px}
.toast{position:fixed;bottom:calc(20px + env(safe-area-inset-bottom,0px));left:50%;transform:translateX(-50%);background:var(--fg);color:var(--bg);padding:9px 18px;border-radius:9px;font-weight:600;z-index:20}
.confirm{display:inline-flex;gap:6px;align-items:center;font-size:12.5px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* clients */
.client-form{background:var(--surface-2);border-radius:10px;padding:14px;margin-bottom:14px}
.client-form h2{font-size:15px;margin-bottom:10px}
.client-hint{font-size:11.5px;font-weight:600;min-height:1em}
.client-hint.new{color:var(--open)} .client-hint.ok{color:var(--closed)}
.client-hint a{color:inherit;cursor:pointer;text-decoration:underline}
.detail-head{margin-bottom:10px}
.client-top{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-start;justify-content:space-between}
.client-card .sh-note:empty{display:none}
table.arch td.link{cursor:pointer}
table.arch td.link b{color:var(--accent)}

/* accounts */
.acct-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px;margin:16px 0}
.acct{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.acct span{color:var(--muted);font-size:13px;font-weight:600}
.acct b{display:block;font-family:var(--f-display);font-size:28px;font-weight:600;margin-top:2px}
.acct small{font-size:12.5px;font-weight:600}
.acct.due b,.acct.due small{color:var(--open)} .acct.credit b,.acct.credit small{color:var(--closed)} .acct.zero small{color:var(--muted)}
.cert-list{display:flex;flex-direction:column;gap:10px}
.cert{display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;border:1px solid var(--line);background:var(--surface-2);border-radius:10px;padding:12px 14px}
.cert .ct{font-family:var(--f-display);font-weight:600;font-size:15px;min-width:150px}
.cert .cm{font-size:12.5px;color:var(--muted)}
.cert .ca{font-weight:600}
.cert .cact{margin-inline-start:auto;display:flex;gap:6px}
table.ledger td.dr{color:var(--open);font-weight:600} table.ledger td.cr{color:var(--closed);font-weight:600}
table.ledger tr.stmt td:nth-child(2){cursor:pointer;text-decoration:underline dotted}
.balpos{color:var(--open);font-weight:600} .balneg{color:var(--closed);font-weight:600}

/* statement settlement */
.settle{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;margin-top:10px}
.settle-col{display:flex;flex-direction:column;gap:8px;border:1px solid var(--line);border-radius:10px;padding:10px}
.settle-col h3{font-size:13.5px;margin:0}
label.tot{display:block}
.usd-labels:not(:empty){margin-top:12px;background:var(--surface-2);border-radius:8px;padding:10px 12px}
.usd-labels h3{font-size:13px;margin:0 0 8px}
table.sh tr.usdrow td{background:#fff}
table.sh tr.usdrow td:nth-child(2),table.sh tr.usdtot td:nth-child(2){text-align:center;font-weight:600}
table.sh tr.usdrow td:first-child,table.sh tr.usdtot td:first-child{border:0;background:#fff}

/* statement on the office letterhead (A4: 794x1123 at 96dpi) */
.sheet{min-height:1123px;padding:205px 78px 120px;background:#fff url("letterhead.jpg") top center/794px 1123px no-repeat;font-family:"IBM Plex Sans Arabic",Tahoma,sans-serif}
table.lh{width:100%;border-collapse:collapse;font-size:14.5px;color:#111;background:transparent}
table.lh td{border:1px solid #111;padding:4px 8px;vertical-align:middle;line-height:1.35}
table.lh td.c{text-align:center}
table.lh tr.t-title td{background:#fcd5b4;text-align:center;font-size:16px;font-weight:600}
table.lh tr.t-meta td{font-weight:500}
table.lh tr.t-head td{background:#d8e4bc;text-align:center;font-weight:600}
table.lh tr.t-total td,table.lh td.t-blue{background:#95b3d7;font-weight:700}
table.lh td.usd{display:table-cell;text-align:left;font-weight:600}
table.lh td.usd span{float:right}
table.lh.lh-settle{width:55%;margin-top:14px;margin-inline-start:auto;font-size:13px}
.sheet .sh-note{margin-top:12px;color:#333}
.sheet .stamp{top:240px}
.row-usd .inp.amt{background:var(--surface-2);border-color:var(--line)}
.row-usd input[id^="it_u_"]{background:var(--accent-soft);border-color:transparent}
/* every value centred under its own column */
table.lh{table-layout:fixed}
table.lh td{text-align:center;word-break:break-word}
table.lh tr.t-meta td{text-align:right}
table.lh td.num{direction:ltr;unicode-bidi:plaintext}
/* screen tables: headers and values share the same alignment (numbers no longer drift left) */
table.arch th,table.arch td{text-align:center}
table.arch th:first-child,table.arch td:first-child{text-align:right}
table.arch td.num{direction:ltr;unicode-bidi:plaintext;text-align:center}
table.ledger td:nth-child(2){text-align:right}