:root {
  --bg: #0f172a;
  --panel: #111827;
  --ink: #e5e7eb;
  --muted: #9ca3af;
  --accent: #0ea5e9;
  --line: #1f2937;
  --good: #22c55e;
  --warn: #f59e0b;
  --bad: #ef4444;
}

body[data-theme="light"] {
  --bg: #f3f6fb;
  --panel: #ffffff;
  --ink: #0f172a;
  --muted: #475569;
  --accent: #0369a1;
  --line: #cbd5e1;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: radial-gradient(1200px 600px at 100% -10%, #1d4ed8 0%, transparent 60%), var(--bg);
  color: var(--ink);
}

.topbar {
  padding: 24px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.topbar h1 { margin: 0; font-size: 24px; }
.topbar p { margin: 6px 0 0; color: var(--muted); }

.theme-toggle {
  width: auto;
  min-width: 140px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
  padding: 16px;
}

.card {
  background: linear-gradient(180deg, var(--panel) 0%, color-mix(in oklab, var(--panel), #000 8%) 100%);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  box-shadow: 0 12px 28px rgba(2, 6, 23, 0.15);
}

.card h2 { margin: 0 0 10px; font-size: 18px; }

input, button {
  width: 100%;
  margin: 6px 0;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid #334155;
  background: color-mix(in oklab, var(--panel), #000 8%);
  color: var(--ink);
}

button {
  background: linear-gradient(90deg, #0369a1, #0891b2);
  border: none;
  cursor: pointer;
}

button:hover { filter: brightness(1.08); }

button:active { transform: translateY(1px); }

pre {
  min-height: 120px;
  max-height: 260px;
  overflow: auto;
  border: 1px solid var(--line);
  background: color-mix(in oklab, var(--panel), #000 14%);
  border-radius: 8px;
  padding: 10px;
  font-size: 12px;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  border: 1px solid transparent;
}

.badge.good { color: var(--good); border-color: color-mix(in oklab, var(--good), #000 50%); }
.badge.warn { color: var(--warn); border-color: color-mix(in oklab, var(--warn), #000 50%); }
.badge.bad { color: var(--bad); border-color: color-mix(in oklab, var(--bad), #000 50%); }

.status {
  font-weight: 600;
  margin-top: 6px;
}

.status.ok { color: var(--good); }
.status.err { color: var(--bad); }