:root {
  --bg: #f4f6f9;
  --panel: #ffffff;
  --ink: #1d2433;
  --muted: #667085;
  --line: #e4e7ec;
  --nav: #14213d;
  --nav-ink: #c9d2e3;
  --accent: #1f6feb;
  --accent-ink: #ffffff;
  --ok-bg: #e6f4ea; --ok: #1e7b34;
  --warn-bg: #fff4e0; --warn: #9a5b00;
  --bad-bg: #fdecec; --bad: #b42318;
  --info-bg: #eaf1fe; --info: #1d4ed8;
  --radius: 8px;
  font-size: 14px;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif; color: var(--ink); background: var(--bg); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.shell { display: flex; min-height: 100vh; }
.sidebar { width: 228px; flex: none; background: var(--nav); color: var(--nav-ink); padding: 18px 0; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.brand { padding: 0 20px 18px; color: #fff; font-weight: 600; font-size: 15px; line-height: 1.3; }
.brand small { display: block; color: var(--nav-ink); font-weight: 400; font-size: 12px; }
.sidebar h6 { margin: 18px 20px 6px; font-size: 11px; letter-spacing: .06em; text-transform: uppercase; color: #8796b3; font-weight: 600; }
.sidebar a { display: block; padding: 7px 20px; color: var(--nav-ink); border-left: 3px solid transparent; }
.sidebar a:hover { background: rgba(255,255,255,.06); text-decoration: none; color: #fff; }
.sidebar a.active { background: rgba(255,255,255,.1); border-left-color: #5b9bff; color: #fff; }
.main { flex: 1; min-width: 0; }
.topbar { display: flex; justify-content: space-between; align-items: center; padding: 14px 28px; background: var(--panel); border-bottom: 1px solid var(--line); }
.topbar h1 { font-size: 18px; margin: 0; font-weight: 600; }
.topbar .user { color: var(--muted); font-size: 13px; display: flex; gap: 12px; align-items: center; }
.content { padding: 22px 28px 40px; }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; margin-bottom: 18px; }
.card h2 { font-size: 15px; margin: 0 0 12px; font-weight: 600; }
.card .sub { color: var(--muted); font-size: 13px; margin: -6px 0 12px; }
.grid { display: grid; gap: 18px; }
.grid.k4 { grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(420px, 1fr)); }
.kpi { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.kpi .label { color: var(--muted); font-size: 12px; }
.kpi .value { font-size: 22px; font-weight: 600; margin-top: 4px; font-variant-numeric: tabular-nums; }
.kpi .hint { color: var(--muted); font-size: 12px; margin-top: 2px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; color: var(--muted); font-weight: 600; font-size: 12px; padding: 8px 10px; border-bottom: 1px solid var(--line); background: #fafbfc; position: sticky; top: 0; }
td { padding: 7px 10px; border-bottom: 1px solid var(--line); vertical-align: top; white-space: nowrap; }
td.wrap { white-space: normal; min-width: 220px; }
tr:hover td { background: #fafcff; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
td.wrap { max-width: 420px; word-break: break-word; white-space: normal; }
.table-wrap { overflow-x: auto; }
tfoot td { font-weight: 600; background: #fafbfc; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; white-space: nowrap; }
.badge.MATCHED, .badge.LOADED, .badge.RESOLVED, .badge.POSTED, .badge.DCR { background: var(--ok-bg); color: var(--ok); }
.badge.UNMATCHED, .badge.PENDING, .badge.DRAFT, .badge.IDENTIFIER { background: var(--warn-bg); color: var(--warn); }
.badge.DIFFERENCE, .badge.FAILED, .badge.OPEN, .badge.none { background: var(--bad-bg); color: var(--bad); }
.badge.EXPORTED, .badge.FILE, .badge.cat { background: var(--info-bg); color: var(--info); }

.filters { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; margin-bottom: 14px; }
.filters label { display: flex; flex-direction: column; font-size: 12px; color: var(--muted); gap: 4px; }
input, select, textarea { font: inherit; padding: 6px 9px; border: 1px solid #cfd4dc; border-radius: 6px; background: #fff; color: var(--ink); }
input:focus, select:focus, textarea:focus { outline: 2px solid #bcd3ff; border-color: var(--accent); }
.btn { display: inline-block; font: inherit; font-weight: 600; padding: 7px 14px; border-radius: 6px; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink); cursor: pointer; }
.btn:hover { filter: brightness(1.07); text-decoration: none; }
.btn.secondary { background: #fff; color: var(--ink); border-color: #cfd4dc; }
.btn.danger { background: #fff; color: var(--bad); border-color: #f1b4ae; }
.btn.small { padding: 3px 9px; font-size: 12px; }
.inline { display: inline; }

.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px 18px; }
.field label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; font-weight: 600; }
.field input, .field select, .field textarea { width: 100%; }
.field .help { font-size: 12px; color: var(--muted); margin-top: 3px; }
.field .err { font-size: 12px; color: var(--bad); margin-top: 3px; }
.actions { margin-top: 16px; display: flex; gap: 10px; }

.messages { list-style: none; padding: 0; margin: 0 0 16px; }
.messages li { padding: 9px 12px; border-radius: 6px; margin-bottom: 6px; border: 1px solid; }
.messages .success { background: var(--ok-bg); color: var(--ok); border-color: #b7dfc2; }
.messages .error { background: var(--bad-bg); color: var(--bad); border-color: #f1b4ae; }
.messages .warning { background: var(--warn-bg); color: var(--warn); border-color: #f3d29b; }
.messages .info { background: var(--info-bg); color: var(--info); border-color: #bfd3fb; }

.pager { display: flex; gap: 8px; align-items: center; margin-top: 12px; color: var(--muted); font-size: 13px; }
.muted { color: var(--muted); }
.mono { font-family: Consolas, "SFMono-Regular", Menlo, monospace; font-size: 12px; }
.tabs { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 14px; }
.tabs a { padding: 6px 12px; border-radius: 6px; color: var(--ink); background: #fff; border: 1px solid var(--line); }
.tabs a.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.login { max-width: 360px; margin: 12vh auto; }
.login .card { padding: 26px; }
.login h1 { font-size: 18px; margin: 0 0 4px; }