:root {
  --bg: #0e1116;
  --panel: #161b22;
  --panel-2: #1c232c;
  --line: #2a323d;
  --text: #e6edf3;
  --muted: #8b949e;
  --primary: #2f81f7;
  --primary-2: #1f6fe5;
  --green: #3fb950;
  --yellow: #d29922;
  --red: #f85149;
  --mono: ui-monospace, "SF Mono", Menlo, Monaco, Consolas, monospace;
}
* { box-sizing: border-box; }
/* Make the `hidden` attribute reliably hide elements even when site CSS sets
   a non-`none` display on the same element (e.g. `.modal { display: flex }`).
   Without this, setting `el.hidden = true` looks like it does nothing. */
[hidden] { display: none !important; }
html, body {
  margin: 0; padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.45;
}
body.centered {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.muted { color: var(--muted); }
.small { font-size: 12px; }
.error { color: var(--red); margin: 8px 0 0; font-size: 13px; }
.topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 12px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 5;
}
.brand { font-weight: 600; }
.topbar > .muted { flex: 1; font-family: var(--mono); }
.container {
  max-width: 1200px;
  margin: 24px auto;
  padding: 0 24px;
  display: grid; gap: 18px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px 20px;
}
.card h2 { margin: 0 0 6px; font-size: 16px; font-weight: 600; }
.card p { margin: 4px 0 12px; }
.card.narrow { width: min(380px, 100%); }
.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
th, td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th {
  font-weight: 500;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--panel-2);
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--panel-2); }
button {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 6px;
}
button:hover { border-color: #3a4452; }
button.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
button.primary:hover { background: var(--primary-2); }
button.ghost { background: transparent; }
button.danger { color: var(--red); border-color: rgba(248, 81, 73, 0.4); }
button.tiny { padding: 4px 9px; font-size: 12px; border-radius: 5px; }
input, select, textarea {
  font: inherit;
  background: #0a0d12;
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 6px;
  padding: 8px 10px;
  width: 100%;
  margin-top: 4px;
}
textarea { font-family: var(--mono); font-size: 13px; }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(47, 129, 247, 0.25);
}
label {
  display: block;
  margin: 10px 0;
  font-size: 13px;
  color: var(--muted);
}
label.row {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
}
label.row input[type=checkbox] { width: auto; margin: 0; }
fieldset {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  margin: 14px 0;
}
fieldset legend { padding: 0 6px; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; }
.actions {
  display: flex; justify-content: flex-end; gap: 8px;
  margin-top: 14px;
}
.modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 40px 16px;
  z-index: 20;
  overflow-y: auto;
}
.modal-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px 22px;
  max-width: 600px; width: 100%;
}
.modal-card h2 { margin: 0 0 12px; }
.tag {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 11px;
  font-family: var(--mono);
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--muted);
}
.tag.mode-static { color: var(--green); border-color: rgba(63, 185, 80, 0.4); }
.tag.mode-rotating { color: var(--yellow); border-color: rgba(210, 153, 34, 0.4); }
.tag.score-good { color: var(--green); border-color: rgba(63, 185, 80, 0.4); }
.tag.score-mid { color: var(--yellow); border-color: rgba(210, 153, 34, 0.4); }
.tag.score-bad { color: var(--red); border-color: rgba(248, 81, 73, 0.4); }
.url-cell {
  font-family: var(--mono);
  font-size: 11px;
  white-space: nowrap;
}
.copy-btn {
  cursor: pointer;
  color: var(--primary);
  border: none; background: none;
  padding: 0; margin-left: 6px;
}
.toast {
  position: fixed; bottom: 24px; right: 24px;
  background: var(--panel); border: 1px solid var(--line);
  padding: 10px 16px; border-radius: 8px;
  z-index: 30;
  animation: fade 3s ease-in-out;
}
@keyframes fade {
  0% { opacity: 0; transform: translateY(8px); }
  10%, 80% { opacity: 1; transform: none; }
  100% { opacity: 0; transform: translateY(8px); }
}
form#loginForm h1 { margin: 0 0 4px; font-size: 18px; }
form#loginForm p { margin: 0 0 16px; }
form#loginForm button { width: 100%; padding: 10px; margin-top: 6px; }