/* ============ Design tokens ============ */
:root{
  --bg:#f4f6fb; --surface:#ffffff; --surface-2:#f8fafc; --surface-3:#eef2f7;
  --border:#e2e8f0; --border-strong:#cbd5e1;
  --text:#0f172a; --text-2:#334155; --muted:#64748b;
  --accent:#4f46e5; --accent-soft:#eef2ff; --accent-ink:#3730a3;
  --good:#047857; --good-soft:#ecfdf5;
  --bad:#be123c;  --bad-soft:#fff1f2;
  --warn:#b45309; --warn-soft:#fffbeb;
  --info:#0369a1; --info-soft:#f0f9ff;
  --side:#111827; --side-2:#1f2937; --side-text:#cbd5e1;
  --radius:14px; --radius-sm:9px;
  --shadow:0 1px 2px rgba(15,23,42,.05), 0 8px 24px -12px rgba(15,23,42,.18);
  --shadow-lg:0 12px 40px -16px rgba(15,23,42,.35);
  --mono:'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;
}
:root[data-theme="dark"]{
  --bg:#0b1020; --surface:#131a2c; --surface-2:#182136; --surface-3:#1e293b;
  --border:#263349; --border-strong:#334865;
  --text:#e8edf7; --text-2:#c2cddf; --muted:#8fa0bb;
  --accent:#818cf8; --accent-soft:#1e254a; --accent-ink:#c7d2fe;
  --good:#34d399; --good-soft:#0d2f28;
  --bad:#fb7185;  --bad-soft:#3a1420;
  --warn:#fbbf24; --warn-soft:#3a2b0d;
  --info:#7dd3fc; --info-soft:#0c2b3f;
  --side:#080d19; --side-2:#131a2c; --side-text:#a9b6cc;
  --shadow:0 1px 2px rgba(0,0,0,.3), 0 10px 30px -18px rgba(0,0,0,.9);
  --shadow-lg:0 20px 50px -20px rgba(0,0,0,.85);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg); color:var(--text);
  font-size:14.5px; line-height:1.5; -webkit-font-smoothing:antialiased;
}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{margin:0; font-weight:650; letter-spacing:-.01em}
.mono{font-family:var(--mono); font-size:.92em}
.muted{color:var(--muted)}
.small{font-size:12.5px}
.right{text-align:right}
.center{text-align:center}
.nowrap{white-space:nowrap}
.good{color:var(--good)} .bad{color:var(--bad)} .warn{color:var(--warn)}

/* ============ Shell ============ */
.shell{display:flex; min-height:100vh}
.sidebar{
  width:252px; flex:0 0 252px; background:var(--side); color:var(--side-text);
  display:flex; flex-direction:column; position:sticky; top:0; height:100vh; overflow-y:auto;
}
.side-brand{display:flex; gap:11px; align-items:center; padding:20px 18px 16px; border-bottom:1px solid rgba(255,255,255,.07)}
.side-brand strong{display:block; color:#fff; font-size:14.5px; line-height:1.25}
.side-brand small{color:#7f8da6; font-size:11px}
.brand-mark{
  width:34px; height:34px; border-radius:10px; display:grid; place-items:center;
  background:linear-gradient(135deg,#6366f1,#8b5cf6); color:#fff; font-weight:700; font-size:17px; flex:none;
}
.sidebar nav{padding:12px 10px; flex:1}
.nav-group{margin:16px 10px 6px; font-size:10.5px; letter-spacing:.09em; text-transform:uppercase; color:#64748b; font-weight:600}
.nav-link{
  display:flex; align-items:center; gap:10px; padding:9px 11px; border-radius:var(--radius-sm);
  color:var(--side-text); font-weight:500; font-size:13.6px; margin-bottom:2px;
}
.nav-link:hover{background:rgba(255,255,255,.06); color:#fff; text-decoration:none}
.nav-link.active{background:var(--accent); color:#fff; box-shadow:0 6px 18px -8px var(--accent)}
.nav-ico{width:20px; text-align:center; opacity:.85; font-size:13px}
.side-foot{padding:14px; border-top:1px solid rgba(255,255,255,.07)}
.side-user{display:flex; gap:10px; align-items:center; margin-bottom:10px}
.side-user strong{display:block; color:#fff; font-size:13px}
.side-user small{color:#64748b; font-size:11px}
.avatar{width:32px;height:32px;border-radius:50%;background:var(--side-2);display:grid;place-items:center;color:#fff;font-weight:600;flex:none}

.main{flex:1; min-width:0; display:flex; flex-direction:column}
.topbar{
  display:flex; align-items:center; gap:14px; padding:14px 26px;
  background:var(--surface); border-bottom:1px solid var(--border); position:sticky; top:0; z-index:20;
}
.topbar-title h1{font-size:19px}
.topbar-title .today{font-size:12px; color:var(--muted)}
.topbar-actions{margin-left:auto; display:flex; gap:8px; align-items:center}
.icon-btn{
  width:34px;height:34px;border-radius:9px;border:1px solid var(--border);background:var(--surface-2);
  color:var(--text-2); cursor:pointer; font-size:15px; line-height:1;
}
.icon-btn:hover{background:var(--surface-3)}
.only-mobile{display:none}
.content{padding:22px 26px 40px; flex:1}
.foot{display:flex; justify-content:space-between; padding:14px 26px; color:var(--muted); font-size:12px; border-top:1px solid var(--border)}

/* ============ Cards & grid ============ */
.grid{display:grid; gap:16px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g-2-1{grid-template-columns:2fr 1fr}
.g-1-2{grid-template-columns:1fr 2fr}
.card{background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); box-shadow:var(--shadow)}
.card-head{display:flex; align-items:center; gap:10px; padding:14px 18px; border-bottom:1px solid var(--border)}
.card-head h2,.card-head h3{font-size:14.5px}
.card-head .sub{font-size:12px; color:var(--muted)}
.card-head .spacer{margin-left:auto}
.card-body{padding:18px}
.card-body.tight{padding:0}
.section-title{margin:26px 0 12px; font-size:13px; text-transform:uppercase; letter-spacing:.07em; color:var(--muted); font-weight:600}
.section-title:first-child{margin-top:0}

/* ============ Stat tiles ============ */
.stat{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius);
  padding:16px 17px; box-shadow:var(--shadow); position:relative; overflow:hidden;
}
.stat .k{font-size:11.5px; text-transform:uppercase; letter-spacing:.06em; color:var(--muted); font-weight:600}
.stat .v{font-size:25px; font-weight:700; margin-top:7px; letter-spacing:-.02em; font-variant-numeric:tabular-nums}
.stat .m{font-size:12px; color:var(--muted); margin-top:5px}
.stat.accent{background:linear-gradient(135deg,var(--accent) 0%,#6d28d9 100%); border-color:transparent; color:#fff}
.stat.accent .k,.stat.accent .m{color:rgba(255,255,255,.78)}
.stat.good-tile .v{color:var(--good)}
.stat.bad-tile .v{color:var(--bad)}
.stat .spark{position:absolute; right:12px; top:14px; font-size:18px; opacity:.25}

/* ============ Tables ============ */
.table-wrap{overflow-x:auto}
table.tbl{width:100%; border-collapse:collapse; font-size:13.4px}
table.tbl th{
  text-align:left; font-weight:600; font-size:11.4px; text-transform:uppercase; letter-spacing:.055em;
  color:var(--muted); padding:11px 14px; background:var(--surface-2); border-bottom:1px solid var(--border);
  white-space:nowrap; position:sticky; top:0;
}
table.tbl td{padding:11px 14px; border-bottom:1px solid var(--border); vertical-align:middle}
table.tbl tbody tr:hover{background:var(--surface-2)}
table.tbl tbody tr:last-child td{border-bottom:0}
table.tbl td.num,table.tbl th.num{text-align:right; font-variant-numeric:tabular-nums; white-space:nowrap}
table.tbl tfoot td{padding:12px 14px; font-weight:650; background:var(--surface-2); border-top:2px solid var(--border-strong)}
tr.row-total td{font-weight:650; background:var(--surface-2)}
tr.dim td{opacity:.6}
.empty{padding:40px 18px; text-align:center; color:var(--muted)}
.empty .big{font-size:30px; display:block; margin-bottom:8px; opacity:.4}

/* ============ Pills & badges ============ */
.pill{display:inline-block; padding:3px 9px; border-radius:999px; font-size:11.4px; font-weight:600; white-space:nowrap}
.pill-good{background:var(--good-soft); color:var(--good)}
.pill-bad{background:var(--bad-soft); color:var(--bad)}
.pill-warn{background:var(--warn-soft); color:var(--warn)}
.pill-info{background:var(--info-soft); color:var(--info)}
.pill-accent{background:var(--accent-soft); color:var(--accent-ink)}
.pill-muted{background:var(--surface-3); color:var(--muted)}

/* ============ Buttons ============ */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:7px;
  padding:9px 15px; border-radius:var(--radius-sm); border:1px solid var(--border-strong);
  background:var(--surface); color:var(--text); font:inherit; font-weight:600; font-size:13.2px;
  cursor:pointer; transition:.15s; text-decoration:none; white-space:nowrap;
}
.btn:hover{background:var(--surface-3); text-decoration:none}
.btn.primary{background:var(--accent); border-color:var(--accent); color:#fff}
.btn.primary:hover{filter:brightness(1.08)}
.btn.danger{background:var(--bad-soft); border-color:transparent; color:var(--bad)}
.btn.ghost{background:transparent}
.btn.sm{padding:6px 11px; font-size:12.4px}
.btn.xs{padding:4px 9px; font-size:11.6px; font-weight:600}
.btn.block{width:100%}
.btn-row{display:flex; gap:8px; flex-wrap:wrap}

/* ============ Forms ============ */
.stack{display:flex; flex-direction:column; gap:13px}
.form-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(190px,1fr)); gap:13px}
label{display:block; font-size:12.4px; font-weight:600; color:var(--text-2)}
label .hint{display:block; font-weight:400; color:var(--muted); font-size:11.4px; margin-top:2px}
input,select,textarea{
  width:100%; margin-top:5px; padding:9px 11px; border:1px solid var(--border-strong);
  border-radius:var(--radius-sm); background:var(--surface); color:var(--text);
  font:inherit; font-size:13.5px;
}
input:focus,select:focus,textarea:focus{outline:none; border-color:var(--accent); box-shadow:0 0 0 3px var(--accent-soft)}
input[type=checkbox]{width:auto; margin:0 7px 0 0}
label.check{display:flex; align-items:center; font-weight:500}
textarea{min-height:70px; resize:vertical}
fieldset{border:1px solid var(--border); border-radius:var(--radius-sm); padding:14px; margin:0}
legend{font-size:12px; font-weight:600; color:var(--muted); padding:0 6px; text-transform:uppercase; letter-spacing:.05em}
.form-actions{display:flex; gap:9px; justify-content:flex-end; padding-top:4px}
.inline-form{display:inline}

/* ============ Alerts ============ */
.alert{padding:11px 15px; border-radius:var(--radius-sm); font-size:13.3px; font-weight:500; border:1px solid transparent}
.alert.ok{background:var(--good-soft); color:var(--good); border-color:color-mix(in srgb,var(--good) 25%,transparent)}
.alert.bad{background:var(--bad-soft); color:var(--bad); border-color:color-mix(in srgb,var(--bad) 25%,transparent)}
.alert.info{background:var(--info-soft); color:var(--info); border-color:color-mix(in srgb,var(--info) 25%,transparent)}
.page-alert{margin:16px 26px -6px}
.note{background:var(--surface-2); border-left:3px solid var(--accent); padding:11px 14px; border-radius:0 var(--radius-sm) var(--radius-sm) 0; font-size:12.8px; color:var(--text-2)}

/* ============ Misc ============ */
.kv{display:grid; grid-template-columns:auto 1fr; gap:9px 18px; font-size:13.3px}
.kv dt{color:var(--muted)}
.kv dd{margin:0; text-align:right; font-weight:600; font-variant-numeric:tabular-nums}
.chart-box{position:relative; height:280px}
.chart-box.sm{height:210px}
.tabs{display:flex; gap:5px; border-bottom:1px solid var(--border); margin-bottom:16px; overflow-x:auto}
.tabs a{padding:9px 14px; font-size:13.2px; font-weight:600; color:var(--muted); border-bottom:2px solid transparent; white-space:nowrap}
.tabs a:hover{color:var(--text); text-decoration:none}
.tabs a.active{color:var(--accent); border-bottom-color:var(--accent)}
.bar{height:6px; border-radius:99px; background:var(--surface-3); overflow:hidden}
.bar span{display:block; height:100%; border-radius:99px; background:var(--accent)}
.filters{display:flex; gap:10px; flex-wrap:wrap; align-items:flex-end}
.filters label{min-width:140px}
.page-actions{display:flex; gap:9px; align-items:center; margin-bottom:16px; flex-wrap:wrap}
.page-actions .spacer{margin-left:auto}
details.form-panel{margin-bottom:18px; background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); box-shadow:var(--shadow)}
details.form-panel>summary{padding:14px 18px; cursor:pointer; font-weight:650; font-size:14px; list-style:none}
details.form-panel>summary::-webkit-details-marker{display:none}
details.form-panel>summary::before{content:'+ '; color:var(--accent); font-weight:700}
details.form-panel[open]>summary{border-bottom:1px solid var(--border)}
details.form-panel[open]>summary::before{content:'– '}
details.form-panel .panel-body{padding:18px}
.scrim{display:none; position:fixed; inset:0; background:rgba(2,6,23,.5); z-index:30}

/* ---- transaction register: inline edit + verify ---- */
input.cell-edit{
  margin:0; padding:5px 8px; font-size:12.6px; border-color:transparent;
  background:var(--surface-2); transition:border-color .15s, background .3s;
}
input.cell-edit:hover{border-color:var(--border-strong)}
input.cell-edit:focus{background:var(--surface); border-color:var(--accent)}
input.cell-edit.saved{background:var(--good-soft); border-color:var(--good)}
input.cell-edit.errored{background:var(--bad-soft); border-color:var(--bad)}
.verify-btn{
  width:28px; height:28px; border-radius:8px; cursor:pointer; font-size:14px; line-height:1;
  border:1px solid var(--border-strong); background:var(--surface-2); color:var(--muted); transition:.15s;
}
.verify-btn:hover{border-color:var(--good); color:var(--good)}
.verify-btn.is-on{background:var(--good); border-color:var(--good); color:#fff}
.verify-btn:disabled{opacity:.5; cursor:wait}
tr.row-verified td{background:color-mix(in srgb, var(--good) 7%, transparent)}
tr.row-verified:hover td{background:color-mix(in srgb, var(--good) 12%, transparent)}
#impTable td{padding:8px 10px}
#impTable select,#impTable input{font-size:12.4px; padding:5px 7px}
.scrim.show{display:block}

/* ============ Auth / installer ============ */
.auth-body{display:grid; place-items:center; min-height:100vh; padding:20px; background:
  radial-gradient(900px 500px at 15% -10%, #6366f122, transparent),
  radial-gradient(700px 500px at 100% 100%, #8b5cf622, transparent), var(--bg);}
.auth-card{width:100%; max-width:390px; background:var(--surface); border:1px solid var(--border);
  border-radius:18px; padding:28px; box-shadow:var(--shadow-lg)}
.auth-card.wide{max-width:520px}
.auth-card .brand{display:flex; gap:12px; align-items:center; margin-bottom:22px}
.auth-card h1{font-size:18px}
.auth-card .brand p{margin:2px 0 0; color:var(--muted); font-size:12.5px}
.auth-card .alert{margin-bottom:12px}

/* ============ Responsive ============ */
@media (max-width:1180px){ .g4{grid-template-columns:repeat(2,minmax(0,1fr))} .g-2-1,.g-1-2{grid-template-columns:1fr} }
@media (max-width:900px){
  .sidebar{position:fixed; left:0; top:0; z-index:40; transform:translateX(-100%); transition:.22s}
  .sidebar.open{transform:none; box-shadow:var(--shadow-lg)}
  .only-mobile{display:inline-grid; place-items:center}
  .g3,.g2{grid-template-columns:1fr}
  .content,.topbar,.foot{padding-left:16px; padding-right:16px}
  .page-alert{margin:12px 16px -4px}
}
@media (max-width:620px){
  .g4{grid-template-columns:1fr}
  .stat .v{font-size:22px}
  .topbar-actions .btn{display:none}
}
@media print{
  .sidebar,.topbar,.foot,.page-actions,.btn,details.form-panel{display:none!important}
  .content{padding:0}
  .card{box-shadow:none; break-inside:avoid}
}