body.dark {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #020617;
  color: #e5e7eb;
}

.container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card {
  background: #020617;
  border-radius: 16px;
  padding: 32px 28px;
  width: 320px;
  box-shadow: 0 24px 50px rgba(15, 23, 42, 0.8);
  border: 1px solid #1f2937;
}

h1 {
  margin: 0 0 8px;
  font-size: 22px;
  text-align: center;
}

.subtitle {
  margin: 0 0 20px;
  text-align: center;
  font-size: 13px;
  color: #9ca3af;
}

input {
  width: 100%;
  padding: 10px 12px;
  margin-bottom: 12px;
  border-radius: 8px;
  border: 1px solid #1f2937;
  background: #020617;
  color: #f9fafb;
  font-size: 14px;
}

button {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: none;
  background: #2563eb;
  color: white;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
}

button:hover {
  background: #1d4ed8;
}

.hint {
  margin-top: 12px;
  font-size: 12px;
  color: #6b7280;
}

.error {
  margin-top: 8px;
  font-size: 12px;
  color: #fca5a5;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  border-bottom: 1px solid #111827;
  background: #020617;
}

.top-bar h2 {
  margin: 0;
  font-size: 18px;
}

.badge {
  display: inline-block;
  margin-top: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #111827;
  font-size: 11px;
  color: #9ca3af;
}

.controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-label {
  font-size: 13px;
  color: #9ca3af;
}

.status-off {
  color: #f97373;
}

.status-on {
  color: #4ade80;
}

#toggle-btn {
  width: auto;
  padding-inline: 16px;
}

.main {
  padding: 24px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.panel {
  background: #020617;
  border-radius: 12px;
  padding: 16px;
  border: 1px solid #111827;
}

.panel h3 {
  margin: 0 0 6px;
  font-size: 13px;
  color: #9ca3af;
}

.panel p {
  margin: 0;
  font-size: 15px;
}

.logs-section {
  margin-top: 24px;
}

.logs-section h3 {
  margin-bottom: 8px;
  font-size: 14px;
}

.logs-box {
  background: #020617;
  border-radius: 12px;
  border: 1px solid #111827;
  padding: 12px;
  max-height: 220px;
  overflow-y: auto;
  font-size: 12px;
  line-height: 1.5;
}