:root{
  --bg:#f3f5f8; --surface:#fff; --ink:#1b1f24; --muted:#667180; --line:#e1e6ec; --line2:#cfd7e0;
  --brand:#0b3b5c; --brand2:#14577f; --accent:#e8f1f7;
  --ok:#17794a; --ok-bg:#e3f4ea; --warn:#9a6a00; --warn-bg:#fff3d6; --bad:#b3261e; --bad-bg:#fde8e6; --part:#0b5fa5; --part-bg:#e3f0fb;
  --r:10px; --shadow:0 1px 2px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.08);
}
*{box-sizing:border-box}
html{font-size:15px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;line-height:1.45;-webkit-font-smoothing:antialiased}
a{color:var(--brand2);text-decoration:none} a:hover{text-decoration:underline}
h1{font-size:1.35rem;margin:0;font-weight:650;letter-spacing:-.01em} h2{font-size:1.02rem;margin:0 0 .8rem;font-weight:650}
code{background:#eef1f5;padding:1px 5px;border-radius:4px;font-size:.88em}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.muted{color:var(--muted)} .small{font-size:.86rem} .late{color:var(--bad);font-weight:600} .num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap} .push{margin-left:auto}
.shell{display:flex;min-height:100vh}
.side{width:230px;background:var(--brand);color:#dce8f1;padding:18px 14px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;flex-shrink:0}
.brand{display:flex;gap:10px;align-items:center;margin-bottom:22px;padding:0 6px}
.brand strong{display:block;color:#fff;font-size:.98rem;line-height:1.15} .brand small{color:#9fb8cb;font-size:.76rem}
.brand-mark{width:36px;height:36px;border-radius:9px;background:#fff;color:var(--brand);display:grid;place-items:center;font-weight:800;font-size:.9rem;letter-spacing:.5px;flex-shrink:0}
.brand-lg .brand-mark{width:44px;height:44px;background:var(--brand);color:#fff} .brand-lg strong{color:var(--ink);font-size:1.1rem} .brand-lg small{color:var(--muted)}
.side nav{display:flex;flex-direction:column;gap:2px}
.side nav a{color:#c9dbe8;padding:9px 12px;border-radius:8px;font-weight:500} .side nav a:hover{background:rgba(255,255,255,.09);text-decoration:none;color:#fff}
.side nav a.active{background:#fff;color:var(--brand);font-weight:650}
.side-foot{margin-top:auto;padding:12px 8px 0;border-top:1px solid rgba(255,255,255,.14);font-size:.88rem} .side-foot a{color:#9fc4de} .who{color:#fff;margin-bottom:2px}
.main{flex:1;min-width:0;padding:22px 28px 60px;max-width:1280px}
.top{display:flex;align-items:center;gap:12px;margin-bottom:18px;flex-wrap:wrap} .top h1{flex:1;min-width:140px} .top-actions{display:flex;gap:8px}
.burger{display:none;border:1px solid var(--line2);background:#fff;border-radius:8px;font-size:1.1rem;padding:5px 10px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;box-shadow:var(--shadow);margin-bottom:16px}
.card.flush{padding:0;overflow:hidden} .card-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:12px} .card-head h2{margin:0}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px;margin-bottom:16px}
.stat{margin:0;display:flex;flex-direction:column;gap:2px} .stat span{color:var(--muted);font-size:.83rem} .stat strong{font-size:1.35rem;letter-spacing:-.01em;font-variant-numeric:tabular-nums} .stat small{color:var(--muted)}
.stat.warn{border-left:4px solid #e0a100} .stat.danger{border-left:4px solid var(--bad)} .stat.danger strong{color:var(--bad)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px} .grid-3{display:grid;grid-template-columns:2fr 1fr;gap:16px} .align-start{align-items:start} .span-2{grid-column:1} .stack{display:flex;flex-direction:column;gap:0}
.bars{display:flex;align-items:flex-end;gap:7px;height:170px;padding:6px 0 0}
.bar{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;gap:5px;font-size:.7rem;color:var(--muted);min-width:0}
.bar i{display:block;width:100%;background:var(--brand2);border-radius:4px 4px 0 0;min-height:2px;opacity:.88} .bar:hover i{opacity:1;background:var(--brand)}
.table-wrap{overflow-x:auto}
.tbl{width:100%;border-collapse:collapse;font-size:.92rem}
.tbl th{text-align:left;font-weight:600;color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;padding:10px 14px;border-bottom:1px solid var(--line);background:#fafbfc;white-space:nowrap}
.tbl td{padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:top} .tbl tbody tr:hover td{background:#fafcfe} .tbl tbody tr:last-child td{border-bottom:0}
.tbl th.num{text-align:right} .tbl.compact td{padding:8px 4px} .tbl tfoot td{border-top:1px solid var(--line);border-bottom:0;padding:7px 14px}
.tbl tfoot tr.grand td{font-weight:700;font-size:1.02rem;background:var(--accent);color:var(--brand)}
.empty{text-align:center;color:var(--muted);padding:26px !important}
.row-actions{white-space:nowrap;text-align:right} .row-actions a{margin-left:10px;font-size:.88rem}
.badge{display:inline-block;padding:2px 9px;border-radius:99px;font-size:.76rem;font-weight:600;white-space:nowrap}
.badge-paid{background:var(--ok-bg);color:var(--ok)} .badge-unpaid{background:var(--bad-bg);color:var(--bad)} .badge-part{background:var(--part-bg);color:var(--part)} .badge-over{background:var(--warn-bg);color:var(--warn)}
.btn{display:inline-block;border:1px solid var(--line2);background:#fff;color:var(--ink);padding:8px 14px;border-radius:8px;font:inherit;font-weight:550;cursor:pointer;text-align:center;line-height:1.25}
.btn:hover{background:#f5f8fb;text-decoration:none} .btn-primary{background:var(--brand);border-color:var(--brand);color:#fff} .btn-primary:hover{background:var(--brand2)}
.btn-danger{color:var(--bad);border-color:#efc2be} .btn-danger:hover{background:var(--bad-bg)} .btn-ghost{background:transparent} .btn-sm{padding:5px 10px;font-size:.86rem} .btn-lg{padding:11px 22px}
.btn-block{display:block;width:100%;margin-bottom:8px}
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px;align-items:center}
.filters input[type=search]{min-width:240px}
.summary-line{display:flex;gap:22px;flex-wrap:wrap;color:var(--muted);margin:2px 2px 10px;font-size:.92rem} .summary-line b{color:var(--ink)} .summary-line b.late{color:var(--bad)}
.pager{display:flex;gap:16px;justify-content:center;align-items:center;color:var(--muted);margin:14px 0}
input,select,textarea{font:inherit;color:inherit;border:1px solid var(--line2);background:#fff;border-radius:8px;padding:8px 10px;width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid #9cc4e0;outline-offset:0;border-color:var(--brand2)}
.filters input,.filters select{width:auto} input[readonly]{background:#f3f5f8;color:var(--muted)}
input.num{text-align:right}
label{display:block;font-size:.84rem;font-weight:600;color:#3a4553;margin-bottom:12px} label input,label select,label textarea{margin-top:4px;font-weight:400}
label.check{display:flex;gap:8px;align-items:flex-start;font-weight:500} label.check input{width:auto;margin-top:3px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px} .form.narrow{max-width:640px}
.hint{color:var(--muted);font-size:.84rem;margin:6px 0 0;font-weight:400}
.form-actions{display:flex;gap:10px;align-items:center;margin-top:4px}
.lines input{padding:6px 8px;margin:0} .lines td{padding:6px 6px;vertical-align:middle} .lines th{padding:8px 6px}
.lines .c-no{width:34px;text-align:center;color:var(--muted)} .lines .c-qty{width:90px} .lines .c-unit{width:84px} .lines .c-price{width:130px} .lines .c-disc{width:110px} .lines .c-sub{width:130px}
.lsub{font-weight:600;font-variant-numeric:tabular-nums}
.icon-btn{border:0;background:none;color:var(--muted);cursor:pointer;font-size:1rem;padding:4px 6px;border-radius:6px} .icon-btn:hover{background:var(--bad-bg);color:var(--bad)}
.totals{display:grid;grid-template-columns:1fr 340px;gap:24px;margin-top:16px;align-items:start}
.totals dl{display:grid;grid-template-columns:1fr 150px;gap:8px 12px;margin:0;align-items:center} .totals dt{text-align:right;color:var(--muted)} .totals dd{margin:0;text-align:right;font-variant-numeric:tabular-nums}
.totals dd input{padding:6px 8px;text-align:right} .totals .grand{font-weight:700;font-size:1.15rem;color:var(--brand);border-top:2px solid var(--brand);padding-top:8px}
.kv{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin-bottom:16px} .kv span{display:block;color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:2px}
.mini{display:grid;grid-template-columns:1fr auto;gap:5px 10px;margin:0 0 12px} .mini dt{color:var(--muted)} .mini dd{margin:0;text-align:right;font-variant-numeric:tabular-nums}
.kv2{display:grid;grid-template-columns:170px 1fr;gap:10px 14px;margin:0} .kv2 dt{color:var(--muted)} .kv2 dd{margin:0} .big{font-size:1.3rem}
.flash{padding:10px 14px;border-radius:8px;margin-bottom:14px;border:1px solid} .flash ul{margin:4px 0 0 18px;padding:0}
.flash-ok{background:var(--ok-bg);border-color:#b8e0c8;color:#10532f} .flash-error{background:var(--bad-bg);border-color:#f2c2be;color:#7d1a14} .flash-warn{background:var(--warn-bg);border-color:#ecd28a;color:#6b4800}
.login-body{display:grid;place-items:center;min-height:100vh;padding:20px;background:linear-gradient(160deg,#e8eff5,#f6f8fa)}
.login-card{background:#fff;padding:28px;border-radius:14px;box-shadow:0 8px 30px rgba(11,59,92,.12);width:100%;max-width:380px;border:1px solid var(--line)} .login-card.wide{max-width:460px} .login-card .brand{margin-bottom:18px;padding:0}
@media (max-width:900px){
  .side{position:fixed;left:-250px;z-index:20;transition:left .2s;width:230px} .side.open{left:0;box-shadow:0 0 0 100vmax rgba(0,0,0,.35)}
  .burger{display:block} .main{padding:16px 14px 60px} .grid-2,.grid-3,.totals,.row2{grid-template-columns:1fr} .kv2{grid-template-columns:1fr;gap:2px} .kv2 dd{margin-bottom:8px}
}
@media print{.side,.top-actions,.burger,.filters,.form-actions{display:none}.main{padding:0}}