:root {
  --bg: #0f1115;
  --panel: #181b22;
  --line: #2a2f3a;
  --text: #e8eaf0;
  --muted: #8b93a5;
  --accent: #ffd23f;
  --ok: #30a46c;
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  padding: 0 16px 48px;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

header, main { max-width: 1100px; margin: 0 auto; }
header { padding: 28px 0 8px; }
h1 { margin: 0; font-size: 28px; letter-spacing: .02em; }
h1::before { content: "▶ "; color: var(--accent); }
h2 { margin: 0 0 12px; font-size: 17px; }
.sub, .muted { color: var(--muted); }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px;
  margin-top: 16px;
}
.center { text-align: center; padding: 40px 18px; }

.row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 12px; }
.row.between { justify-content: space-between; margin-top: 0; }
.row.between h2 { margin: 0; }

button {
  font: inherit;
  color: var(--text);
  background: #242935;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 14px;
  cursor: pointer;
}
button:hover { border-color: var(--muted); }
button.primary { background: var(--accent); color: #111; border: 0; font-weight: 700; padding: 12px 22px; }

#preview { width: 100%; height: 180px; display: block; background: #0a0b0e; border-radius: 8px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px 18px; }
.grid label { display: flex; flex-direction: column; gap: 6px; color: var(--muted); font-size: 13px; }
.grid label.wide { grid-column: 1 / -1; }
.grid label.check { flex-direction: row; align-items: center; color: var(--text); font-size: 15px; }
output { color: var(--text); }

input, textarea, select {
  font: inherit;
  color: var(--text);
  background: #0f1115;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  width: 100%;
}
textarea { resize: vertical; font-size: 18px; }
input[type="range"] { padding: 0; accent-color: var(--accent); }
input[type="color"] { height: 40px; padding: 3px; }
input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--accent); }

label.base { display: flex; flex-direction: column; gap: 6px; margin: 14px 0 4px; color: var(--muted); font-size: 13px; }

.devices { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; margin-top: 14px; }
.card {
  display: flex; flex-direction: column; gap: 8px; align-items: stretch;
  border: 1px solid var(--line); border-radius: 10px; padding: 12px; background: #13161c;
}
.card.online { border-color: var(--ok); }
.card-head { display: flex; justify-content: space-between; align-items: center; }
.badge { font-size: 26px; font-weight: 800; color: var(--accent); }
.status { font-size: 12px; color: var(--muted); }
.status::before { content: "● "; color: #e5484d; }
.card.online .status { color: var(--ok); }
.card.online .status::before { color: var(--ok); }
.card img { width: 100%; aspect-ratio: 1; background: #fff; border-radius: 6px; image-rendering: pixelated; }
.card a { color: var(--muted); font-size: 12px; word-break: break-all; }

@media print {
  body { background: #fff; color: #000; padding: 0; }
  header, .panel:not(:last-child), .panel .row, label.base, .panel > .muted, .card button, .status { display: none !important; }
  .panel { border: 0; background: none; padding: 0; margin: 0; }
  .devices { grid-template-columns: repeat(3, 1fr); }
  .card { break-inside: avoid; border: 1px solid #999; background: #fff; }
  .badge { color: #000; }
  .card a { color: #000; }
}