:root {
  --bg: #f4f6fb;
  --panel: #ffffff;
  --text: #112039;
  --muted: #5f6f87;
  --primary: #1b59f8;
  --border: #dce3f0;
  --error: #bc2f2f;
  --ok: #2b7f3a;
  --shadow: 0 8px 24px rgba(27, 48, 88, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  background: radial-gradient(1200px 500px at 20% -10%, #e3ecff, transparent), var(--bg);
  color: var(--text);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(6px);
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

h1 {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.2;
}

.subtitle {
  margin: 0.1rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.topbar-actions {
  display: flex;
  gap: 0.5rem;
}

.btn {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.55rem 0.8rem;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
}

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

.btn.secondary {
  background: #fff;
  color: var(--text);
}

.btn.ghost {
  background: transparent;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 1rem;
}

.panel h2 {
  margin: 0 0 0.8rem;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
}

.notice p {
  margin: 0;
  color: var(--muted);
}

.user-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.label {
  font-size: 0.76rem;
  color: var(--muted);
}

.value {
  font-size: 0.93rem;
  font-weight: 600;
}

.status {
  margin-top: 0.7rem;
  font-size: 0.85rem;
  color: var(--ok);
}

.status.error {
  color: var(--error);
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.7rem;
}

.metric-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.7rem;
  background: linear-gradient(180deg, #fff, #f9fbff);
}

.metric-label {
  font-size: 0.76rem;
  color: var(--muted);
}

.metric-value {
  margin-top: 0.3rem;
  font-size: 1.1rem;
  font-weight: 700;
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}

th,
td {
  text-align: left;
  padding: 0.5rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.empty-cell {
  color: var(--muted);
  text-align: center;
  padding: 0.9rem;
}

.json-view {
  margin: 0;
  padding: 0.8rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #f7f9ff;
  color: #1e2f4d;
  max-height: 280px;
  overflow: auto;
  font-size: 0.8rem;
}

.hidden {
  display: none !important;
}

@media (max-width: 980px) {
  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .user-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .topbar-actions {
    width: 100%;
  }

  .btn {
    flex: 1;
  }

  .grid {
    grid-template-columns: 1fr;
  }
}