:root {
  color-scheme: light;
  --page: #f9f9f7; --surface: #fcfcfb; --ink: #0b0b0b; --ink2: #52514e; --muted: #898781;
  --grid: #e1e0d9; --base: #c3c2b7; --border: rgba(11,11,11,0.10); --hover: rgba(11,11,11,0.04);
  --accent: #2a78d6; --accent-ink: #ffffff; --tutor: #eb6834;
  --good: #0ca30c; --warn: #fab219; --crit: #d03b3b; --good-text: #006300; --crit-text: #b02a2a;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d; --surface: #1a1a19; --ink: #f0efec; --ink2: #c3c2b7; --muted: #898781;
    --grid: #2c2c2a; --base: #383835; --border: rgba(255,255,255,0.10); --hover: rgba(255,255,255,0.05);
    --accent: #3987e5; --tutor: #d95926; --good-text: #0ca30c; --crit-text: #e66767;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d; --surface: #1a1a19; --ink: #f0efec; --ink2: #c3c2b7; --muted: #898781;
  --grid: #2c2c2a; --base: #383835; --border: rgba(255,255,255,0.10); --hover: rgba(255,255,255,0.05);
  --accent: #3987e5; --tutor: #d95926; --good-text: #0ca30c; --crit-text: #e66767;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--page); color: var(--ink);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--accent); }
header.top { display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 16px; border-bottom: 1px solid var(--border); background: var(--surface); }
header.top .brand { font-weight: 700; color: var(--ink); text-decoration: none; }
header.top .brand span { color: var(--tutor); }
header.top .who { display: flex; align-items: center; gap: 10px; color: var(--ink2); font-size: 14px; }
main { max-width: 1100px; margin: 0 auto; padding: 24px 16px 64px; }
main.wide { max-width: 1400px; }
h1 { font-size: 24px; margin: 0 0 4px; }
h2 { font-size: 18px; margin: 32px 0 12px; }
.sub, .muted { color: var(--muted); }
.sub { margin: 0 0 16px; color: var(--ink2); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
label { display: block; font-weight: 600; font-size: 14px; margin: 0 0 6px; }
input[type=text], input[type=password], input[type=number] {
  width: 100%; padding: 9px 12px; font: inherit; color: var(--ink); background: var(--page);
  border: 1px solid var(--base); border-radius: 8px; }
input:focus-visible, button:focus-visible, .drop:focus-within { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 9px 18px; border-radius: 8px; border: 0;
  background: var(--accent); color: var(--accent-ink); font: inherit; font-weight: 600; cursor: pointer; text-decoration: none; }
.btn:disabled { opacity: .6; cursor: progress; }
.btn.ghost { background: transparent; color: var(--ink2); border: 1px solid var(--border); font-weight: 500; padding: 5px 12px; }
.field { margin-bottom: 16px; }
.row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.check { display: flex; align-items: center; gap: 8px; font-weight: 400; color: var(--ink2); }
.alert { padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; border: 1px solid var(--crit);
  color: var(--crit-text); background: var(--hover); }
.login { max-width: 380px; margin: 10vh auto 0; }
.login h1 { margin-bottom: 4px; }

.drop { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; text-align: center;
  border: 2px dashed var(--base); border-radius: 12px; padding: 32px 16px; cursor: pointer; color: var(--ink2); }
.drop.over { border-color: var(--accent); background: var(--hover); }
.drop input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.drop b { color: var(--ink); }
.upbar { height: 8px; border-radius: 4px; background: var(--grid); overflow: hidden; margin-top: 12px; display: none; }
.upbar > div, .progress > div { height: 100%; width: 0; background: var(--accent); border-radius: 4px; transition: width .4s; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--grid); }
th { color: var(--muted); font-weight: 600; font-size: 13px; }
tbody tr:hover { background: var(--hover); }
.badge { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; color: var(--ink2); }
.badge::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: var(--muted); }
.badge.done::before { background: var(--good); }
.badge.running::before { background: var(--accent); }
.badge.queued::before { background: var(--warn); }
.badge.failed::before { background: var(--crit); }

.progress { height: 12px; border-radius: 6px; background: var(--grid); overflow: hidden; margin: 10px 0; }
.status-line { display: flex; justify-content: space-between; gap: 12px; color: var(--ink2); flex-wrap: wrap; }
pre.log { background: var(--page); border: 1px solid var(--border); border-radius: 8px; padding: 12px; font-size: 12px;
  max-height: 260px; overflow: auto; white-space: pre-wrap; color: var(--ink2); margin: 12px 0 0; }
iframe.report { width: 100%; height: 85vh; border: 1px solid var(--border); border-radius: 12px; background: var(--page); }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 12px 0; }