:root {
  --fg: #1a1a1a;
  --muted: #666;
  --bg: #fff;
  --border: #ddd;
  --accent: #2a5db0;
  --danger: #b02a2a;
  --ok: #2a8a4a;
}

* { box-sizing: border-box; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--fg);
  background: var(--bg);
  margin: 0;
  line-height: 1.5;
}

header.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--border);
  background: #fafafa;
}

header.topbar .brand { font-weight: 700; text-decoration: none; color: var(--fg); }
header.topbar nav a { margin-right: 1rem; text-decoration: none; color: var(--accent); }
header.topbar .user { color: var(--muted); font-size: 0.9rem; }

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

h1, h2, h3 { line-height: 1.2; }

a { color: var(--accent); }

button {
  font: inherit;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--border);
  background: #f5f5f5;
  border-radius: 4px;
  cursor: pointer;
}
button.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
button.danger { color: var(--danger); border-color: var(--danger); background: #fff; }
button:disabled { opacity: 0.5; cursor: default; }

input, select, textarea {
  font: inherit;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
}

label { display: block; margin: 0.5rem 0 0.15rem; font-size: 0.9rem; color: var(--muted); }

table { border-collapse: collapse; width: 100%; margin: 0.5rem 0; }
th, td { text-align: left; padding: 0.4rem 0.6rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 0.85rem; }

ul.list { list-style: none; padding: 0; }
ul.list li {
  padding: 0.5rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  margin-bottom: 0.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem;
  margin: 1rem 0;
}

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

.banner {
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  margin: 0.5rem 0;
  display: none;
}
.banner.error { display: block; background: #fde8e8; color: var(--danger); border: 1px solid #f5b5b5; }
.banner.ok { display: block; background: #e8f7ee; color: var(--ok); border: 1px solid #aedcbf; }

.muted { color: var(--muted); }
.hidden { display: none !important; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

pre.file {
  background: #f7f7f7;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.75rem;
  overflow: auto;
  max-height: 60vh;
}

.tabs { display: flex; gap: 0.25rem; border-bottom: 1px solid var(--border); margin: 1rem 0; }
.tabs button { border-bottom: none; border-radius: 4px 4px 0 0; }
.tabs button.active { background: #fff; border-bottom: 2px solid var(--accent); font-weight: 600; }

.token-box {
  background: #fffbe6;
  border: 1px solid #e8d98a;
  border-radius: 4px;
  padding: 0.75rem;
  word-break: break-all;
}