:root {
  color-scheme: light dark;
  --bg: #14171c;
  --panel: #1d2129;
  --border: #2c3138;
  --text: #e7e9ec;
  --muted: #8a9099;
  --accent: #e0942f;
  --heat: #e05b3f;
  --cool: #3f9fe0;
  --ok: #4caf50;
  --bad: #6b7078;
}

* { box-sizing: border-box; }

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

.topbar {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  color: var(--accent);
  font-weight: 700;
  font-size: 1.25rem;
  text-decoration: none;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.5rem;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.btn {
  background: var(--accent);
  color: #1a1a1a;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
}

.btn.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.device-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  text-decoration: none;
  color: var(--text);
  display: block;
}

.device-card h3 { margin: 0 0 0.5rem; }

.device-card .badge {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  margin-left: 0.4rem;
}

.badge.online { background: var(--ok); color: #08240a; }
.badge.offline { background: var(--bad); color: #fff; }

.live-state, .config-form, .history {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}

.live-state {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
}

.stat { display: flex; flex-direction: column; gap: 0.25rem; }
.stat .label { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; }
.stat .value { font-size: 1.5rem; font-weight: 700; }

#config-form {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
}

#config-form label, .add-device-form label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  color: var(--muted);
  font-size: 0.85rem;
}

input, select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.4rem 0.5rem;
  border-radius: 6px;
}

.manual-controls { margin-top: 1rem; display: flex; gap: 0.5rem; flex-wrap: wrap; }

dialog {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
}

dialog form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-width: 260px;
}

.dialog-actions { display: flex; justify-content: flex-end; gap: 0.5rem; margin-top: 0.5rem; }

.login-card {
  max-width: 320px;
  margin: 3rem auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.login-card .error {
  color: var(--heat);
  font-size: 0.85rem;
}