:root {
  --bg: #0f1117;
  --panel: #181b24;
  --panel-2: #20242f;
  --border: #2a2f3c;
  --text: #e6e9ef;
  --muted: #8b93a7;
  --accent: #4f8cff;
  --on: #2ecc71;
  --warn: #f1c40f;
  --off: #e74c3c;
}
* { box-sizing: border-box; }
/* 保证 hidden 属性始终生效（.login-screen 的 display:grid 会覆盖 UA 的 [hidden] 规则） */
[hidden] { display: none !important; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
}
.login-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: 320px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.login-card h1 { font-size: 18px; margin: 0; }
.login-card input, .login-card button {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-size: 14px;
}
.login-card button { background: var(--accent); border-color: var(--accent); cursor: pointer; }
.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { font-weight: 600; }
.topbar nav { display: flex; gap: 8px; flex: 1; }
.topbar nav button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
}
.topbar nav button.active { color: var(--text); border-color: var(--accent); }
.ghost { background: transparent; border: 1px solid var(--border); color: var(--muted); padding: 6px 12px; border-radius: 8px; cursor: pointer; }
.content { padding: 20px; max-width: 1400px; margin: 0 auto; }
h2 { font-size: 16px; margin: 24px 0 12px; }
.muted { color: var(--muted); }
.error { color: var(--off); }
.table-wrap { width: 100%; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: var(--panel); border-radius: 8px; overflow: hidden; white-space: nowrap; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 500; background: var(--panel-2); }
.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; background: var(--panel-2); border: 1px solid var(--border); }
.badge.on { color: var(--on); border-color: var(--on); }
.badge.warn { color: var(--warn); border-color: var(--warn); }
.badge.off { color: var(--off); border-color: var(--off); }
.row-actions { display: flex; gap: 6px; }
.toolbar { display: flex; align-items: center; gap: 12px; margin: 12px 0; }
.toolbar button {
  padding: 8px 16px; border-radius: 8px; border: 1px solid var(--accent);
  background: var(--accent); color: #fff; cursor: pointer; font-size: 13px;
}
.toolbar button:disabled { opacity: 0.6; cursor: default; }
button.sm { padding: 4px 10px; font-size: 12px; border-radius: 6px; border: 1px solid var(--border); background: var(--panel-2); color: var(--text); cursor: pointer; }
button.sm.danger { color: var(--off); border-color: var(--off); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 14px; }
.card .n { font-size: 22px; font-weight: 600; }
.card .l { color: var(--muted); margin-top: 4px; }
.form { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 16px; display: flex; flex-direction: column; gap: 10px; max-width: 520px; }
.form input, .form textarea {
  padding: 8px 10px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--panel-2); color: var(--text); font-family: inherit; font-size: 13px;
}
.form button { align-self: flex-start; padding: 8px 16px; border-radius: 8px; border: 1px solid var(--accent); background: var(--accent); color: #fff; cursor: pointer; }
pre.logs { background: #0a0c11; border: 1px solid var(--border); border-radius: 8px; padding: 12px; height: 50vh; overflow: auto; font-size: 12px; line-height: 1.5; white-space: pre-wrap; word-break: break-all; }
.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--panel-2); border: 1px solid var(--border); padding: 10px 18px; border-radius: 8px; z-index: 50; }
.toast.error { border-color: var(--off); color: var(--off); }
.loading-placeholder { color: var(--muted); }
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0, 0, 0, 0.55);
  display: grid; place-items: center; z-index: 100; padding: 20px;
}
.modal {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  padding: 20px 22px; width: min(640px, 100%); max-height: 85vh; overflow: auto;
}
.modal h3 { margin: 0 0 10px; font-size: 16px; }
.modal .steps { margin: 10px 0; padding-left: 20px; display: flex; flex-direction: column; gap: 8px; }
.modal pre.cmd {
  background: #0a0c11; border: 1px solid var(--border); border-radius: 6px;
  padding: 8px 10px; font-size: 12px; white-space: pre-wrap; word-break: break-all; margin: 6px 0;
}
.modal code { background: var(--panel-2); border: 1px solid var(--border); border-radius: 4px; padding: 1px 5px; font-size: 12px; }
.key-row {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; margin-bottom: 6px;
}
.key-row span { flex-basis: 100%; }
.key-row code { word-break: break-all; font-size: 13px; }
.modal-actions { display: flex; gap: 10px; margin-top: 16px; align-items: center; }
.modal-actions button:not(.sm) {
  padding: 8px 16px; border-radius: 8px; border: 1px solid var(--accent);
  background: var(--accent); color: #fff; cursor: pointer;
}