:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --card: #ffffff;
  --border: #dde2e7;
  --text: #1c2530;
  --muted: #64748b;
  --accent: #1d4ed8;
  --accent-hover: #1e40af;
  --danger: #b91c1c;
  --ok: #15803d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

nav {
  background: #111827;
  color: #e5e7eb;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
}
nav a { color: #e5e7eb; text-decoration: none; font-size: 0.95rem; }
nav a:hover { color: #fff; text-decoration: underline; }
nav .brand { font-weight: 700; margin-right: auto; color: #fff; }
nav form { margin: 0; }
nav button.link {
  background: none; border: none; color: #e5e7eb; cursor: pointer; font-size: 0.95rem; padding: 0;
}

main { max-width: 960px; margin: 2rem auto; padding: 0 1rem; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

h1 { font-size: 1.4rem; }
h2 { font-size: 1.15rem; }

table { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
th, td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; }

label { display: block; margin: 0.9rem 0 0.3rem; font-weight: 600; font-size: 0.9rem; }
input[type=text], input[type=password], input[type=number], input[type=file], select {
  width: 100%; padding: 0.5rem; border: 1px solid var(--border); border-radius: 6px; font-size: 0.95rem;
}
.hint { color: var(--muted); font-size: 0.85rem; margin-top: 0.2rem; }

button, .btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 0.55rem 1.1rem;
  border-radius: 6px;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  margin-top: 1rem;
}
button:hover, .btn:hover { background: var(--accent-hover); }
button.secondary { background: #64748b; }
button.danger { background: var(--danger); }

.error { color: var(--danger); background: #fef2f2; border: 1px solid #fecaca; padding: 0.6rem 0.9rem; border-radius: 6px; margin-bottom: 1rem; }
.success { color: var(--ok); background: #f0fdf4; border: 1px solid #bbf7d0; padding: 0.6rem 0.9rem; border-radius: 6px; margin-bottom: 1rem; }

.badge { display: inline-block; padding: 0.15rem 0.55rem; border-radius: 999px; font-size: 0.78rem; font-weight: 600; }
.badge.queued { background: #e5e7eb; color: #374151; }
.badge.running { background: #dbeafe; color: #1e40af; }
.badge.done { background: #dcfce7; color: #166534; }
.badge.failed { background: #fee2e2; color: #991b1b; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.muted { color: var(--muted); font-size: 0.88rem; }