:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --side: #0f172a;
  --side-2: #1e293b;
  --line: #e5e7eb;
  --text: #0f172a;
  --muted: #64748b;
  --blue: #2563eb;
  --blue-soft: #eff6ff;
  --green: #059669;
  --amber: #d97706;
  --red: #dc2626;
  --radius: 14px;
  --shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}
button, input, select { font: inherit; }
button { border: 0; background: none; cursor: pointer; color: inherit; }
a { color: inherit; text-decoration: none; }

#app { min-height: 100%; }

.login {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 20% 20%, #dbeafe, transparent 40%),
    radial-gradient(circle at 80% 0%, #e2e8f0, transparent 35%),
    var(--bg);
}
.login-card {
  width: min(400px, 100%);
  background: var(--panel);
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow);
}
.login-card .brand {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue);
}
.login-card h1 {
  margin-top: 8px;
  font-size: 28px;
  letter-spacing: -0.04em;
}
.login-card p {
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}
.login-card label {
  display: block;
  margin-top: 20px;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}
.login-card input {
  width: 100%;
  margin-top: 8px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  background: #fff;
}
.login-card .err {
  margin-top: 10px;
  color: var(--red);
  font-size: 13px;
  font-weight: 600;
}
.login-card .btn {
  width: 100%;
  margin-top: 18px;
  background: var(--blue);
  color: #fff;
  border-radius: 12px;
  padding: 12px 16px;
  font-weight: 700;
}

.shell {
  display: grid;
  grid-template-columns: 248px 1fr;
  min-height: 100vh;
}
.side {
  background: linear-gradient(180deg, var(--side), #0b1220);
  color: #e2e8f0;
  padding: 18px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: sticky;
  top: 0;
  height: 100vh;
}
.side .logo {
  padding: 8px 10px 18px;
}
.side .logo b {
  display: block;
  font-size: 18px;
  letter-spacing: -0.03em;
}
.side .logo span {
  display: block;
  margin-top: 4px;
  color: #94a3b8;
  font-size: 12px;
}
.nav-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  text-align: left;
  padding: 11px 12px;
  border-radius: 12px;
  color: #cbd5e1;
  font-weight: 650;
  font-size: 14px;
}
.nav-btn:hover { background: rgba(255,255,255,.06); color: #fff; }
.nav-btn.on { background: rgba(37,99,235,.22); color: #fff; }
.nav-btn i {
  width: 8px; height: 8px; border-radius: 99px; background: currentColor; opacity: .7;
}
.side .grow { flex: 1; }
.side .foot {
  padding: 10px;
  border-top: 1px solid rgba(255,255,255,.08);
  display: grid;
  gap: 8px;
}
.shop-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 10px;
  color: #cbd5e1;
  font-size: 12px;
  font-weight: 650;
}
.shop-pill.on { background: rgba(255,255,255,.08); color: #fff; }
.dot { width: 8px; height: 8px; border-radius: 99px; }

.main {
  padding: 22px 24px 40px;
  min-width: 0;
}
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
  margin-bottom: 18px;
}
.topbar h1 {
  font-size: 28px;
  letter-spacing: -0.04em;
}
.topbar .sub { margin-top: 4px; color: var(--muted); font-size: 13px; }
.filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.chip {
  padding: 8px 12px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}
.chip.on {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}
.kpi {
  background: var(--panel);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.kpi span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}
.kpi b {
  display: block;
  margin-top: 8px;
  font-size: 24px;
  letter-spacing: -0.03em;
}
.shop-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}
.shop-card {
  background: var(--panel);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  text-align: left;
  border: 1px solid transparent;
}
.shop-card:hover { border-color: #bfdbfe; }
.shop-card .row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}
.shop-card h3 { font-size: 16px; }
.badge {
  font-size: 11px;
  font-weight: 800;
  padding: 4px 8px;
  border-radius: 999px;
  background: #ecfdf5;
  color: var(--green);
}
.badge.off { background: #fef2f2; color: var(--red); }
.shop-card .meta {
  margin-top: 12px;
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}
.shop-card .meta b { color: var(--text); }

.panel {
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.panel-head {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.panel-head h2 { font-size: 15px; letter-spacing: -0.02em; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
th, td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
th {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  background: #fafafa;
}
tr:hover td { background: #f8fafc; }
.mono { font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }
.status {
  display: inline-flex;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
  background: #eff6ff;
  color: var(--blue);
}
.status.pending_payment { background: #fff7ed; color: var(--amber); }
.status.delivered { background: #ecfdf5; color: var(--green); }
.status.cancelled, .status.refunded { background: #fef2f2; color: var(--red); }
.shop-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 800;
  font-size: 12px;
}
.linkish { color: var(--blue); font-weight: 700; cursor: pointer; }
.empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--muted);
}
.detail {
  display: grid;
  gap: 12px;
}
.detail-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 12px;
}
.box {
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
}
.box h3 { font-size: 14px; margin-bottom: 10px; }
.box .line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}
.box .line:last-child { border-bottom: 0; }
.back {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--blue);
  font-weight: 700;
  font-size: 13px;
}

@media (max-width: 1100px) {
  .kpi-grid, .shop-cards, .detail-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .side {
    position: relative;
    height: auto;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }
  .side .grow, .side .foot { display: none; }
  .kpi-grid, .shop-cards, .detail-grid { grid-template-columns: 1fr; }
  .main { padding: 16px; }
  table { display: block; overflow-x: auto; }
}