:root {
  color-scheme: dark;
  --bg: #10140f;
  --panel: #181d16;
  --panel-2: #20261d;
  --line: #31392c;
  --text: #edf2e6;
  --muted: #9aa592;
  --amber: #e0a84a;
  --green: #8fbf73;
  --red: #e07a62;
  --blue: #8eb8b0;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 "Segoe UI", sans-serif;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.top {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--line);
  background: #141913;
}

.top strong { letter-spacing: 0.04em; }

.badge {
  margin-left: 8px;
  padding: 2px 7px;
  border: 1px solid var(--amber);
  color: var(--amber);
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

nav { display: flex; gap: 14px; flex: 1; }
nav a { color: var(--muted); }
nav a.active { color: var(--text); }

.clock { color: var(--muted); font-variant-numeric: tabular-nums; }

main { padding: 22px; max-width: 1180px; }

.grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 16px; }
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.stack { display: grid; gap: 16px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
}

.panel h2, .panel h3 { margin: 0 0 10px; font-size: 15px; font-weight: 600; }
.muted { color: var(--muted); }
.row { display: flex; justify-content: space-between; gap: 12px; padding: 4px 0; }
.big { font-size: 28px; font-variant-numeric: tabular-nums; }

.phase {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--panel-2);
  color: var(--amber);
}

.lamps { display: flex; gap: 8px; margin-top: 12px; }
.lamp {
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--panel-2);
  color: var(--muted);
  font-size: 12px;
}
.lamp.on { color: var(--green); }

.actions { display: flex; gap: 8px; margin-top: 14px; }
button, .button {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
}
button.danger { border-color: var(--red); color: var(--red); }
button.primary { border-color: var(--amber); color: var(--amber); }

.list { display: grid; gap: 8px; max-height: 320px; overflow: auto; }
.item { padding-bottom: 8px; border-bottom: 1px solid var(--line); }
.item:last-child { border-bottom: 0; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 12px; }
.pos { color: var(--green); }
.neg { color: var(--red); }

form.settings { display: grid; gap: 18px; }
fieldset {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
}
legend { padding: 0 6px; color: var(--amber); }
.field { display: grid; grid-template-columns: 220px 180px 1fr; gap: 10px; align-items: center; margin: 8px 0; }
label { font-weight: 600; }
input, select {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px;
}
.help { color: var(--muted); font-size: 13px; }
.login {
  max-width: 420px;
  margin: 10vh auto;
}
.steps { padding-left: 18px; }
.steps li { margin: 8px 0; }
code { color: var(--amber); }

@media (max-width: 860px) {
  .grid, .cards, .field { grid-template-columns: 1fr; }
  .top { flex-wrap: wrap; }
}