:root {
  --bg: #f5f7f9;
  --fg: #202428;
  --muted: #677078;
  --accent: #2f6690;
  --card: #ffffff;
  --border: #dde3e8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161a1e;
    --fg: #e8ecef;
    --muted: #9aa5ad;
    --accent: #6fa8d2;
    --card: #1f2429;
    --border: #2d343a;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
nav .brand { font-weight: 600; }
nav a { color: var(--fg); text-decoration: none; }
nav div { display: flex; gap: 14px; }
main { max-width: 640px; margin: 0 auto; padding: 16px; }
h1 { font-size: 1.4rem; }
h2 { font-size: 1.1rem; margin-top: 1.6em; }
.filters { margin-bottom: 14px; }
.filters select { width: auto; display: inline-block; margin-right: 8px; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 12px;
}
.card a { color: var(--fg); text-decoration: none; display: block; }
.card .device-row { display: flex; align-items: center; gap: 12px; }
.device-icon { font-size: 1.6em; line-height: 1; flex-shrink: 0; }
.card .muted { color: var(--muted); font-size: 0.9em; }
.muted { color: var(--muted); }
.warn { color: #b3581f; }
label { display: block; margin: 14px 0 4px; font-weight: 600; font-size: 0.92em; }
input, select, textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--fg);
  font-size: 1em;
}
textarea { min-height: 70px; }
button, .btn {
  display: inline-block;
  margin-top: 16px;
  margin-right: 8px;
  padding: 12px 18px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 1em;
  cursor: pointer;
  text-decoration: none;
}
.btn-secondary { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.flash { background: #fde3c7; color: #5c3a10; padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; }
.row { display: flex; gap: 12px; }
.row > * { flex: 1; }
dl { margin-top: 20px; }
dt { font-weight: 600; color: var(--muted); font-size: 0.85em; margin-top: 10px; }
dd { margin: 2px 0 0; }
hr { border: none; border-top: 1px solid var(--border); margin: 20px 0; }
.rec-box { background: var(--card); border: 1px solid var(--accent); border-radius: 10px; padding: 16px; margin-top: 16px; }
.rec-box p { margin: 0 0 8px; }
.rec-box p:last-child { margin-bottom: 0; }
.empty { color: var(--muted); font-style: italic; }