:root {
  --blue-900: #0b1f4d;
  --blue-800: #12306f;
  --blue-700: #16408f;
  --yellow-500: #f2b705;
  --yellow-400: #ffd24a;
  --bg: #f4f7fb;
  --card: #ffffff;
  --text: #14213d;
  --muted: #6b7280;
  --border: #d9e2ef;
  --danger: #b42318;
  --success: #027a48;
  --warning: #b54708;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 260px;
  background: var(--blue-900);
  color: #ffffff;
  display: flex;
  flex-direction: column;
  padding: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 34px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--yellow-500);
  color: var(--blue-900);
  font-weight: 800;
  font-size: 24px;
}

.brand strong {
  display: block;
  font-size: 18px;
}

.brand span {
  color: var(--yellow-400);
  font-size: 13px;
}

.nav {
  display: grid;
  gap: 10px;
}

.nav-item {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: transparent;
  color: #ffffff;
  text-align: left;
  padding: 12px 14px;
  border-radius: 10px;
  cursor: pointer;
}

.nav-item.active {
  background: var(--yellow-500);
  color: var(--blue-900);
  font-weight: 700;
}

.nav-item.disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.sidebar-footer {
  margin-top: auto;
  color: rgba(255, 255, 255, 0.65);
  font-size: 12px;
}

.content {
  flex: 1;
  padding: 28px;
  overflow-x: hidden;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.topbar h1 {
  margin: 0 0 6px;
  color: var(--blue-900);
}

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

.actions {
  display: flex;
  gap: 10px;
}

.button {
  border: none;
  border-radius: 10px;
  padding: 11px 16px;
  font-weight: 700;
  cursor: pointer;
}

.button.primary {
  background: var(--blue-800);
  color: #ffffff;
}

.button.secondary {
  background: var(--yellow-500);
  color: var(--blue-900);
}

.button.danger {
  background: #fee4e2;
  color: var(--danger);
}

.token-panel,
.card,
.panel,
.status-message {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.token-panel {
  padding: 20px;
  margin-bottom: 22px;
}

.token-panel h2 {
  margin-top: 0;
}

.token-form {
  display: flex;
  gap: 10px;
  margin: 16px 0 10px;
}

.token-form input {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 14px;
}

.status-message {
  padding: 14px 16px;
  margin-bottom: 22px;
  font-weight: 700;
}

.status-message.success {
  color: var(--success);
  background: #ecfdf3;
}

.status-message.error {
  color: var(--danger);
  background: #fef3f2;
}

.hidden {
  display: none;
}

.grid {
  display: grid;
  gap: 18px;
  margin-bottom: 18px;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.card {
  padding: 20px;
}

.card-label {
  display: block;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 8px;
}

.card strong {
  font-size: 24px;
  color: var(--blue-900);
}

.card strong.ok {
  color: var(--success);
}

.card strong.error {
  color: var(--danger);
}

.metric strong {
  font-size: 34px;
}

.panel {
  padding: 0;
  overflow: hidden;
}

.panel-header {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
}

.panel-header h2 {
  margin: 0;
  font-size: 18px;
  color: var(--blue-900);
}

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th,
td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--blue-900);
  background: #f8fafc;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

td {
  color: #1f2937;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 9px;
  font-size: 12px;
  font-weight: 700;
}

.badge.success {
  background: #dcfae6;
  color: var(--success);
}

.badge.error {
  background: #fee4e2;
  color: var(--danger);
}

.badge.warning {
  background: #fef0c7;
  color: var(--warning);
}

.badge.neutral {
  background: #eef2f6;
  color: #475467;
}

@media (max-width: 1100px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .sidebar {
    display: none;
  }

  .content {
    padding: 18px;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }
}