* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, sans-serif; background: #f3f4f6; color: #111827; }
body.center { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
main { max-width: 960px; margin: 24px auto; padding: 0 16px; }
h1, h2 { margin: 0 0 16px; }
h2 { font-size: 18px; }

.card { background: #fff; border-radius: 8px; padding: 24px; box-shadow: 0 1px 3px rgba(0,0,0,.12); width: 100%; max-width: 360px; }
.card.wide { max-width: none; margin-bottom: 16px; }

label { display: block; margin-bottom: 12px; font-size: 14px; }
input[type=text], input[type=email], input[type=password], input[type=url] {
  display: block; width: 100%; padding: 8px 10px; margin-top: 4px;
  border: 1px solid #d1d5db; border-radius: 6px; font: inherit;
}
.check { display: flex; align-items: center; gap: 8px; }
.row { display: flex; gap: 8px; margin-bottom: 12px; }
.row input { margin-top: 0; }
.row input[name=label] { flex: 1; }
.row input[name=url] { flex: 3; }

button { padding: 8px 14px; border: 0; border-radius: 6px; background: #2563eb; color: #fff; font: inherit; cursor: pointer; }
button:hover { background: #1d4ed8; }
button.secondary { background: #e5e7eb; color: #111827; }
button.secondary:hover { background: #d1d5db; }
button.danger { background: #dc2626; }
button.danger:hover { background: #b91c1c; }
button.small { padding: 4px 10px; font-size: 13px; }

.error { color: #dc2626; font-size: 14px; min-height: 1.2em; margin: 0 0 12px; }
.muted { color: #6b7280; font-size: 14px; }
.topbar { display: flex; align-items: center; gap: 12px; padding: 12px 24px; background: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.12); }
.spacer { flex: 1; }

table { border-collapse: collapse; width: 100%; font-size: 14px; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid #e5e7eb; vertical-align: middle; }
td.url { word-break: break-all; }
td.actions { white-space: nowrap; text-align: right; }
.badge { padding: 2px 8px; border-radius: 999px; font-size: 12px; background: #dcfce7; color: #166534; }
.badge.off { background: #f3f4f6; color: #6b7280; }

@media (max-width: 640px) {
  .row { flex-direction: column; }
}