:root {
  --bg: #f6f6f4; --surface: #ffffff; --text: #1d1d1b; --muted: #5f5f5a; --border: #dcdcd6;
  --accent: #1f5f8b; --accent-text: #ffffff; --error: #a3261b; --notice-bg: #eef5ea; --warn-bg: #fff3cd;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161615; --surface: #20201e; --text: #ececea; --muted: #a5a5a0; --border: #3a3a37;
    --accent: #6fb0e0; --accent-text: #0d1b26; --error: #f08a80; --notice-bg: #1f2d1c; --warn-bg: #3d3416;
  }
}
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--accent); }
main { max-width: 960px; margin: 0 auto; padding: 16px; }
.env-banner { background: var(--warn-bg); text-align: center; font-size: 14px; padding: 4px 16px; }
.topbar { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--border); background: var(--surface); }
.brand { font-weight: 600; text-decoration: none; color: var(--text); }
nav { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 16px; margin-bottom: 16px; }
.narrow { max-width: 420px; margin: 32px auto; }
h1 { font-size: 1.4rem; margin: 0 0 8px; }
h2 { font-size: 1.1rem; margin: 0 0 8px; }
label { display: block; margin: 12px 0; }
input, select { display: block; width: 100%; margin-top: 4px; padding: 10px; font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--border); border-radius: 6px; }
input[type=file] { padding: 8px; }
button { margin-top: 8px; padding: 10px 16px; font: inherit; border: 0; border-radius: 6px; background: var(--accent); color: var(--accent-text); cursor: pointer; }
button.link { background: none; color: var(--accent); padding: 0; margin: 0; text-decoration: underline; }
form.inline { display: inline; }
.muted { color: var(--muted); }
.error { color: var(--error); }
.notice { background: var(--notice-bg); padding: 8px 12px; border-radius: 6px; }
.wrap { word-break: break-all; }
table { width: 100%; border-collapse: collapse; display: block; overflow-x: auto; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
ul.plain { list-style: none; padding: 0; margin: 0; }
.status { font-size: 13px; padding: 2px 8px; border-radius: 10px; border: 1px solid var(--border); }
.status-failed { color: var(--error); }
.prewrap { white-space: pre-wrap; }
textarea { display: block; width: 100%; margin-top: 4px; padding: 10px; font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--border); border-radius: 6px; }
fieldset { border: 1px solid var(--border); border-radius: 6px; margin: 12px 0; padding: 8px 12px; }
legend { padding: 0 4px; font-weight: 600; }
label.choice { display: flex; gap: 8px; align-items: center; margin: 6px 0; }
label.choice input { width: auto; display: inline; margin: 0; }
.row { display: flex; flex-wrap: wrap; gap: 0 12px; }
.row label { flex: 1 1 140px; }
.badge { display: inline-block; font-size: 12px; padding: 1px 8px; border-radius: 10px; background: var(--warn-bg); }
.tabs { display: flex; flex-wrap: wrap; gap: 16px; margin: 8px 0; }
[aria-current="page"] { font-weight: 600; }
.synthetic { border-left: 4px solid var(--accent); }
ul.history li { margin-bottom: 10px; }