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

:root {
  color-scheme: light dark;
  --bg: #fff;
  --text: #1a1a2e;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --danger: #ef4444;
  --danger-hover: #dc2626;
  --success: #22c55e;
  --alert-bg: #fef2f2;
  --alert-border: #fecaca;
  --card-bg: #f9fafb;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f172a;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --border: #334155;
    --accent: #60a5fa;
    --accent-hover: #93bbfd;
    --danger: #f87171;
    --danger-hover: #fca5a5;
    --success: #4ade80;
    --alert-bg: #451a1a;
    --alert-border: #991b1b;
    --card-bg: #1e293b;
  }
}

body {
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', 'Menlo', 'Consolas', monospace;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

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

nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
  width: 100%;
}

.alert {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.alert.error {
  background: var(--alert-bg);
  border: 1px solid var(--alert-border);
  color: var(--danger);
}

h1 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 1.15rem;
  margin-bottom: 1rem;
  color: var(--muted);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 2rem;
}

th, td {
  text-align: left;
  padding: 0.75rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-group {
  margin-bottom: 1rem;
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

input[type=text], input[type=password] {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.9rem;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
}

input:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}

.button-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}

a.button, button {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  border: none;
  cursor: pointer;
  text-decoration: none;
  background: var(--accent);
  color: #fff;
  transition: background 0.15s;
  font-family: inherit;
}

a.button:hover, button:hover {
  background: var(--accent-hover);
}

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

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

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

button.outline:hover, a.button.outline:hover {
  background: var(--card-bg);
}

.tag {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

.tag.active {
  background: #dcfce7;
  color: #166534;
}

.tag.inactive {
  background: #fef2f2;
  color: #991b1b;
}

@media (prefers-color-scheme: dark) {
  .tag.active {
    background: #064e3b;
    color: #6ee7b7;
  }

  .tag.inactive {
    background: #7f1d1d;
    color: #fca5a5;
  }
}

.mono {
  font-family: inherit;
  font-size: 0.8rem;
  word-break: break-all;
}

.empty {
  text-align: center;
  padding: 3rem;
  color: var(--muted);
}

.login-box {
  max-width: 400px;
  margin: 4rem auto;
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card-bg);
}

.login-box h1 {
  text-align: center;
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
}

.login-box button {
  width: 100%;
  justify-content: center;
  margin-top: 0.5rem;
}

small {
  font-size: 0.8rem;
  color: var(--muted);
}