:root {
  --bg: #fafafa;
  --panel: #ffffff;
  --text: #212121;
  --muted: #616161;
  --line: #e0e0e0;
  --brand: #e53935;
  --brand-soft: #ffebee;
}

* {
  box-sizing: border-box;
}

body.admin-page {
  margin: 0;
  font-family: "Noto Sans KR", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.admin-shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 1rem 2.5rem;
}

.admin-header {
  margin-bottom: 1.25rem;
}

.admin-back {
  display: inline-block;
  margin-bottom: 0.75rem;
  color: var(--brand);
  text-decoration: none;
  font-weight: 600;
}

.admin-eyebrow {
  margin: 0 0 0.25rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.admin-header h1 {
  margin: 0;
  font-size: 1.5rem;
}

.admin-gate,
.admin-loading {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--muted);
}

.hidden {
  display: none !important;
}

.admin-summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.admin-stat {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.9rem 1rem;
}

.admin-stat__label {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.admin-stat__value {
  margin: 0.25rem 0 0;
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--brand);
}

.admin-section {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem 1rem 1.1rem;
  margin-bottom: 1rem;
}

.admin-section h2 {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
}

.admin-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.admin-section__head h2 {
  margin: 0;
}

.admin-tabs {
  display: flex;
  gap: 0.35rem;
  background: var(--bg);
  border-radius: 999px;
  padding: 0.2rem;
}

.admin-tab {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  cursor: pointer;
}

.admin-tab.active {
  background: var(--brand);
  color: #fff;
}

.admin-chart-wrap {
  position: relative;
  height: 280px;
}

.admin-chart-wrap--short {
  height: 200px;
}

.admin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 760px) {
  .admin-grid {
    grid-template-columns: 1fr;
  }
}

.admin-table-wrap {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.admin-table th,
.admin-table td {
  padding: 0.55rem 0.45rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.admin-table th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.78rem;
}

.admin-table tbody tr:last-child td {
  border-bottom: 0;
}

.admin-hint {
  margin: 0 0 0.75rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.admin-tracking-list {
  margin: 0 0 0.75rem;
  padding-left: 1.2rem;
}

.admin-tracking-list li {
  margin-bottom: 0.35rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.55rem 1rem;
  border-radius: 10px;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn.primary {
  background: var(--brand);
  color: #fff;
}