:root {
  --bg: #f5f6f8;
  --panel: #ffffff;
  --text: #1f2933;
  --muted: #657282;
  --border: #d8dee6;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --danger-bg: #fff5f5;
  --danger-border: #f1b6b6;
  --warn-bg: #fff8e6;
  --ok-bg: #eefaf1;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.topbar h1 { margin: 0 0 6px; font-size: 26px; }
.topbar nav { display: flex; gap: 10px; flex-wrap: wrap; }
a { color: #1d4ed8; text-decoration: none; }
a:hover { text-decoration: underline; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 18px;
  margin-bottom: 16px;
}

.panel h2 { margin: 0 0 12px; font-size: 18px; }
.section-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.grid.two {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.device-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.device-card {
  display: block;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  color: inherit;
  text-decoration: none;
}
.device-card:hover { border-color: #9db6d8; text-decoration: none; }
.device-card h3 { margin: 0 0 10px; }

.kv {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 8px 12px;
  margin: 0;
}
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-word; }

.muted { color: var(--muted); }
.small { font-size: 13px; }
.hidden { display: none; }
.empty { color: var(--muted); padding: 10px 0; }

.message {
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #eef4ff;
  padding: 12px;
  margin-bottom: 14px;
}
.message.error { background: var(--danger-bg); border-color: var(--danger-border); }
.message.ok { background: var(--ok-bg); }

button {
  border: 1px solid #b7c1cc;
  background: #fff;
  color: var(--text);
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
}
button:hover:not(:disabled) { background: #f0f4f8; }
button:disabled { cursor: not-allowed; opacity: 0.5; }
button.danger {
  background: #b91c1c;
  color: #fff;
  border-color: #991b1b;
}
button.danger:hover:not(:disabled) { background: #991b1b; }

.button-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.duration-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.duration-row input { width: 110px; padding: 8px; border: 1px solid var(--border); border-radius: 8px; }
.control-reasons { margin-top: 10px; display: grid; gap: 4px; }
.control-reasons div { color: var(--muted); font-size: 13px; }

.progress-box {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
}
.progress-box.warning { background: var(--warn-bg); }
.progress-box.danger { background: var(--danger-bg); border-color: var(--danger-border); }
.progress-box.success { background: var(--ok-bg); }
.progress-title { font-weight: 700; margin-bottom: 8px; }
.progress-steps { display: grid; gap: 6px; margin-top: 10px; }
.progress-step { color: var(--muted); }
.progress-step.done { color: #166534; }
.progress-step.current { color: #1d4ed8; font-weight: 600; }
.progress-step.problem { color: #b91c1c; font-weight: 700; }

.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { border-bottom: 1px solid var(--border); padding: 8px; text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 600; }
code, pre { font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace; }
pre { overflow-x: auto; background: #111827; color: #e5e7eb; border-radius: 10px; padding: 14px; }

@media (max-width: 760px) {
  .page { padding: 14px; }
  .topbar { display: block; }
  .grid.two { grid-template-columns: 1fr; }
  .kv { grid-template-columns: 110px minmax(0, 1fr); }
}

.countdown-active {
  font-weight: 700;
}

.fire-on-active {
  font-weight: 700;
}