* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #f6f8fb; --card: #ffffff; --line: #e2e8f0; --ink: #0f172a;
  --muted: #64748b; --blue: #1d4ed8; --blue2: #eff6ff; --green: #16a34a; --red: #dc2626; --amber: #d97706;
}
body { background: var(--bg); color: var(--ink); font-family: 'Segoe UI', system-ui, -apple-system, sans-serif; font-size: 14px; }

.topbar { background: var(--card); border-bottom: 1px solid var(--line); display: flex; align-items: center;
  justify-content: space-between; padding: 0 28px; height: 58px; position: sticky; top: 0; z-index: 10;
  box-shadow: 0 1px 3px rgba(15,23,42,.05); }
.brand { font-weight: 700; font-size: 16px; letter-spacing: .02em; }
.brand span { color: var(--blue); }
.navlinks { display: flex; gap: 4px; }
.navlinks a { color: var(--muted); text-decoration: none; padding: 8px 13px; border-radius: 8px; font-weight: 500; font-size: 13.5px; }
.navlinks a:hover { background: var(--blue2); color: var(--blue); }
.navlinks a.active { background: var(--blue); color: #fff; }
.navlinks a.logout { color: var(--red); }

.wrap { max-width: 1280px; margin: 26px auto; padding: 0 24px; }
h1 { font-size: 22px; margin-bottom: 4px; }
.sub { color: var(--muted); font-size: 13px; margin-bottom: 18px; }
h2 { font-size: 16px; margin: 22px 0 10px; color: var(--blue); }

.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 18px; }
.toolbar input[type=date], .toolbar select { padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px;
  background: #fff; font-size: 13px; color: var(--ink); }
.btn { display: inline-block; background: var(--blue); color: #fff !important; border: 0; padding: 8px 16px;
  border-radius: 8px; font-size: 13px; font-weight: 600; cursor: pointer; text-decoration: none; }
.btn.ghost { background: #fff; color: var(--blue) !important; border: 1px solid var(--blue); }
.btn.danger { background: var(--red); }
.btn:disabled { opacity: .6; }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 20px; }
.kpi { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.kpi .v { font-size: 22px; font-weight: 700; }
.kpi .l { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; margin-top: 3px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 18px; margin-bottom: 16px; }
.card h3 { font-size: 14px; margin-bottom: 10px; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .05em;
  padding: 9px 10px; border-bottom: 2px solid var(--line); }
td { padding: 9px 10px; border-bottom: 1px solid var(--line); }
tr:hover td { background: #f8fafc; }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.mono { font-family: Consolas, monospace; font-size: 12px; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 20px; font-size: 11px; font-weight: 600; }
.badge.paid, .badge.closed, .badge.invoiced { background: #dcfce7; color: #166534; }
.badge.draft, .badge.open, .badge.pending { background: #fef3c7; color: #92400e; }
.badge.void, .badge.overdue { background: #fee2e2; color: #991b1b; }
.badge.sent { background: #dbeafe; color: #1e40af; }
.badge.other { background: #f1f5f9; color: #475569; }

.alert { padding: 10px 14px; border-radius: 10px; margin-bottom: 8px; font-size: 13px; border: 1px solid; }
.alert.warning { background: #fffbeb; border-color: #fde68a; color: #92400e; }
.alert.info { background: #eff6ff; border-color: #bfdbfe; color: #1e40af; }
.alert.error { background: #fef2f2; border-color: #fecaca; color: #991b1b; }
.alert b { display: block; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; margin-bottom: 2px; }

.chip { background: var(--blue2); color: var(--blue); border-radius: 6px; padding: 2px 8px; font-size: 11.5px; font-weight: 600; }
.lochead { display: flex; align-items: center; gap: 10px; }
.lochead .chip { font-size: 11px; }

details.items details-row td { padding: 0; }
.subtable td { font-size: 12px; background: #fafcff; }

.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--bg); }
.login-card { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 34px; width: 360px;
  box-shadow: 0 8px 30px rgba(15,23,42,.06); }
.login-card h1 { font-size: 20px; margin-bottom: 6px; }
.login-card .sub { margin-bottom: 20px; }
.login-card input { width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: 9px;
  font-size: 14px; margin-bottom: 14px; }
.login-card .btn { width: 100%; padding: 11px; }
.err { color: var(--red); font-size: 13px; margin-bottom: 12px; }

.emailrow { display: flex; align-items: center; justify-content: space-between; padding: 8px 0; border-bottom: 1px solid var(--line); }
.emailrow form { margin: 0; }
.inline { display: inline; }
.small { font-size: 12px; color: var(--muted); }
.flex { display: flex; gap: 18px; flex-wrap: wrap; }
.flex > .card { flex: 1; min-width: 340px; }