:root { --bg:#F5F6FA; --card:#fff; --tx:#111827; --mut:#6B7280; --line:#E5E7EB; --ac:#4F46E5; --ac2:#4338CA; --ok:#16A34A; --bad:#DC2626; --in:#fff; }
@media (prefers-color-scheme: dark) { :root { --bg:#0F1117; --card:#181B24; --tx:#E5E7EB; --mut:#9CA3AF; --line:#2A2F3C; --in:#11141B; } }
* { box-sizing: border-box; }
body { margin:0; background:var(--bg); color:var(--tx); font:14px/1.5 "Segoe UI",system-ui,-apple-system,Roboto,sans-serif; display:flex; min-height:100vh; }
body.guest { justify-content:center; align-items:center; }
a { color:var(--ac); text-decoration:none; } a:hover { text-decoration:underline; }
h1 { font-size:22px; margin:0; } h2 { font-size:15px; margin:0 0 10px; } h3 { font-size:11px; letter-spacing:.06em; text-transform:uppercase; color:var(--ac); margin:16px 0 4px; }
.muted { color:var(--mut); } .sm { font-size:12px; } .r { text-align:right; } .nowrap { white-space:nowrap; }

.side { width:220px; background:var(--card); border-right:1px solid var(--line); padding:18px 14px; display:flex; flex-direction:column; position:sticky; top:0; height:100vh; flex-shrink:0; }
.brand { font-weight:700; font-size:16px; display:flex; align-items:center; gap:8px; margin-bottom:22px; }
.logo-dot { width:12px; height:12px; border-radius:4px; background:var(--ac); }
.side nav { display:flex; flex-direction:column; gap:2px; flex:1; }
.side nav a { padding:9px 12px; border-radius:8px; color:var(--tx); } .side nav a:hover { background:var(--bg); text-decoration:none; }
.side nav a.on { background:var(--ac); color:#fff; }
.who { border-top:1px solid var(--line); padding-top:12px; font-size:13px; } .who small { color:var(--mut); display:block; margin-bottom:8px; word-break:break-all; }
.main { flex:1; padding:24px 28px; min-width:0; max-width:1250px; }
.head { display:flex; justify-content:space-between; align-items:center; gap:12px; margin-bottom:16px; flex-wrap:wrap; }

.auth { width:100%; max-width:380px; background:var(--card); padding:28px; border-radius:16px; border:1px solid var(--line); margin:20px; }
.auth h1 { margin-bottom:14px; }
.stack { display:flex; flex-direction:column; gap:12px; }

label { display:block; font-size:12px; color:var(--mut); margin-bottom:8px; }
input, select, textarea { width:100%; padding:8px 10px; margin-top:3px; border:1px solid var(--line); border-radius:8px; background:var(--in); color:var(--tx); font:inherit; }
input:focus, select:focus, textarea:focus { outline:2px solid var(--ac); outline-offset:-1px; border-color:transparent; }
textarea { resize:vertical; }
input[type=checkbox] { width:auto; margin:0 6px 0 0; accent-color:var(--ac); }
input[type=file] { padding:6px; }
.chk { display:flex; align-items:center; color:var(--tx); font-size:13px; margin:8px 0 2px; cursor:pointer; }
.sub { margin:2px 0 6px 22px; }
.grid2 { display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.thumb { max-height:56px; max-width:140px; display:block; margin:4px 0; border:1px solid var(--line); border-radius:6px; padding:3px; background:#fff; }

.btn { display:inline-block; background:var(--ac); color:#fff; border:0; padding:9px 16px; border-radius:8px; cursor:pointer; font:inherit; font-weight:600; text-decoration:none; }
.btn:hover { background:var(--ac2); text-decoration:none; }
.btn.ghost { background:transparent; color:var(--tx); border:1px solid var(--line); font-weight:500; } .btn.ghost:hover { background:var(--bg); }
.btn.sm { padding:4px 10px; font-size:12px; } .btn.wide { width:100%; margin-top:14px; padding:12px; }
form.inline { display:inline; }

.panel { background:var(--card); border:1px solid var(--line); border-radius:14px; padding:16px 18px; margin-bottom:14px; }
.cards { display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:14px; margin-bottom:14px; }
.card { background:var(--card); border:1px solid var(--line); border-radius:14px; padding:14px 18px; display:flex; flex-direction:column; }
.card small { color:var(--mut); } .card b { font-size:26px; } .card span { color:var(--mut); font-size:13px; }
.card.good b { color:var(--ok); } .card.bad b { color:var(--bad); }
.two { display:grid; grid-template-columns:1fr 1fr; gap:14px; }
.tbl { width:100%; border-collapse:collapse; } .tbl td { padding:8px 6px; border-bottom:1px solid var(--line); } .tbl tr:last-child td { border:0; }
.flash { padding:10px 14px; border-radius:10px; margin-bottom:14px; background:#DCFCE7; color:#166534; } .flash.err { background:#FEE2E2; color:#991B1B; }
.tabs { display:flex; background:var(--card); border:1px solid var(--line); border-radius:10px; padding:3px; }
.tabs a { padding:6px 14px; border-radius:8px; color:var(--tx); } .tabs a.on { background:var(--ac); color:#fff; } .tabs a:hover { text-decoration:none; }
.search { display:flex; gap:8px; margin-bottom:14px; max-width:420px; } .search input { margin:0; }

.grid-form { display:grid; grid-template-columns:minmax(0,1.5fr) minmax(0,1fr); gap:14px; align-items:start; }
.stackcol { min-width:0; }
.opts label:not(.chk) { margin-top:8px; }

.costing { display:grid; grid-template-columns:360px minmax(0,1fr); gap:14px; align-items:start; }
.inputs { max-height:calc(100vh - 150px); overflow:auto; }
.fld { display:flex; align-items:center; gap:8px; margin:0 0 6px; color:var(--tx); } .fld span { flex:1; font-size:13px; }
.fld input { width:100px; margin:0; text-align:right; } .fld em { width:42px; font-style:normal; color:var(--mut); font-size:12px; }
.row { display:flex; gap:6px; align-items:center; margin-bottom:6px; } .row small { color:var(--mut); }
.save { display:flex; gap:8px; margin-top:14px; position:sticky; bottom:0; background:var(--card); padding-top:8px; }
.rcards { display:grid; grid-template-columns:repeat(auto-fit,minmax(190px,1fr)); gap:12px; margin-bottom:14px; }
.kv { display:flex; justify-content:space-between; padding:3px 0; } .kv.b { font-weight:700; }

.items { margin-bottom:8px; }
.irow { display:grid; grid-template-columns:minmax(120px,3fr) 70px 70px 55px 80px 90px 34px; gap:6px; align-items:center; margin-bottom:6px; }
.irow.noh { grid-template-columns:minmax(120px,3fr) 70px 55px 80px 90px 34px; }
.irow input { margin:0; padding:6px 8px; } .ihead { font-size:11px; color:var(--mut); margin-bottom:2px; }
.amt { font-variant-numeric: tabular-nums; }
.totals { margin-top:12px; border-top:1px solid var(--line); padding-top:10px; max-width:340px; margin-left:auto; }
.totals .grand { background:var(--ac); color:#fff; border-radius:8px; padding:8px 12px; display:flex; justify-content:space-between; font-weight:700; margin-top:6px; }
[hidden] { display:none !important; }

@media (max-width: 900px) {
  body { flex-direction:column; } .side { width:auto; height:auto; position:static; flex-direction:row; flex-wrap:wrap; align-items:center; gap:8px; }
  .side nav { flex-direction:row; flex-wrap:wrap; } .brand { margin:0; } .who { border:0; padding:0; display:flex; gap:8px; align-items:center; } .who small { display:none; }
  .main { padding:16px; } .grid-form, .costing, .two { grid-template-columns:1fr; } .inputs { max-height:none; }
  .irow, .irow.noh { grid-template-columns:1fr 1fr 1fr; } .ihead { display:none; }
}