:root {
  --bg: #0d1117;
  --surface: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --success: #3fb950;
  --danger: #f85149;
  --warning: #d29922;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.layout {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px 48px;
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

nav .brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

nav .links {
  display: flex;
  gap: 24px;
  align-items: center;
}

nav .links a {
  color: var(--muted);
  font-size: 0.9rem;
}

nav .links a.active,
nav .links a:hover {
  color: var(--text);
  text-decoration: none;
}

.logout-inline { display: inline; margin: 0; }

.link-btn {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 0.9rem;
  cursor: pointer;
  padding: 0;
}

.link-btn:hover { color: var(--text); }

h1 { font-size: 1.75rem; font-weight: 700; margin-bottom: 8px; }
h2 { font-size: 1.1rem; font-weight: 600; margin-bottom: 16px; color: var(--muted); }
.subtitle { color: var(--muted); margin-bottom: 32px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.card .label {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.card .value {
  font-size: 1.75rem;
  font-weight: 700;
}

.card .sub {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 4px;
}

.card .unit {
  font-size: 0.9rem;
  color: var(--muted);
}

.upstream-card { margin-bottom: 24px; }

.upstream-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.upstream-url { margin-left: 8px; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-left: 8px;
}

.badge.ok { background: rgba(63, 185, 80, 0.15); color: var(--success); }
.badge.err { background: rgba(248, 81, 73, 0.15); color: var(--danger); }
.badge.warn { background: rgba(210, 153, 34, 0.15); color: var(--warning); }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
}

tr:hover td { background: rgba(255, 255, 255, 0.02); }

.table-card { padding: 0; overflow: hidden; }
.table-card table { margin: 0; }

.chart-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
}

@media (max-width: 768px) {
  .chart-row { grid-template-columns: 1fr; }
  nav .links { gap: 12px; flex-wrap: wrap; }
}

.chart-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.chart-box canvas { max-height: 260px; }

form.inline {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: end;
  margin-bottom: 16px;
}

label {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 4px;
}

input, select, textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 8px 12px;
  font-size: 0.9rem;
  width: 100%;
}

input:focus, select:focus { outline: none; border-color: var(--accent); }

button, .btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-block;
}

button:hover, .btn:hover {
  background: var(--accent-hover);
  text-decoration: none;
  color: #fff;
}

button.danger { background: var(--danger); }
button.danger:hover { background: #da3633; }

button.secondary,
.secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.section { margin-bottom: 40px; }
.section-hint { margin-bottom: 12px; }
.section-link { margin-top: 12px; }
.pad-cell { padding: 20px !important; }
.inline-cell { padding: 8px 12px; }
.inline-delete { display: inline; margin-left: 4px; }
.field-inline { min-width: 180px; }
.field-narrow { width: 100px; }

.login-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.login-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  width: 100%;
  max-width: 400px;
}

.login-box h1 { margin-bottom: 8px; }
.login-sub { margin-bottom: 24px; }
.login-box .field { margin-bottom: 16px; }
.login-box .error { color: var(--danger); margin-bottom: 16px; font-size: 0.9rem; }
.login-box .info { color: var(--success); margin-bottom: 16px; font-size: 0.9rem; }

.token-reveal {
  background: var(--bg);
  border: 1px solid var(--success);
  border-radius: 8px;
  padding: 12px;
  font-family: monospace;
  font-size: 0.85rem;
  word-break: break-all;
  margin-bottom: 16px;
}

.mono { font-family: monospace; font-size: 0.8rem; }
.muted { color: var(--muted); }
.truncate { max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.filters {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  align-items: end;
}

.filters .field { min-width: 140px; }

.status-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot.ok {
  background: var(--success);
  box-shadow: 0 0 8px rgba(63, 185, 80, 0.6);
}

.status-dot.err {
  background: var(--danger);
  box-shadow: 0 0 8px rgba(248, 81, 73, 0.6);
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal.open { display: flex; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
}

.modal-card {
  position: relative;
  width: 100%;
  max-width: 560px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.modal-card h2 {
  margin: 0 0 8px;
  font-size: 1.25rem;
  color: var(--text);
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.copy-feedback {
  margin-top: 12px;
  color: var(--success);
  font-size: 0.875rem;
}