body {
  font-family: system-ui, Segoe UI, Roboto, Arial;
  background: #f4f7fa;
  margin: 0;
  padding: 0;
}
.dashboard {
  max-width: 900px;
  margin: 2rem auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  padding: 2rem;
}
.card {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.07);
  padding: 1.5rem 1.2rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  transition: box-shadow 0.2s, transform 0.2s;
  border: 1px solid #e6e9e8;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}
.card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  border-color: #c2e7d9;
  transform: translateY(-2px);
}
.card-icon {
  font-size: 2.2rem;
  margin-bottom: 0.7rem;
  color: #256029;
}
.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: #17202a;
}
.card-desc {
  font-size: 1rem;
  color: #6b6f72;
  margin-bottom: 0;
}


.badge {
  background: #e74c3c;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 12px;
  margin-left: 8px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-width: 24px;
  min-height: 24px;
  line-height: 1.1;
}

@media (max-width: 600px) {
  .dashboard { padding: 0.5rem; gap: 1rem; }
  .card { padding: 1rem 0.7rem; }
}

/* Page title */
h1 {
  text-align: center;
  margin-top: 2rem;
  color: #256029;
  font-size: 2.1rem;
}

/* Icon vertical alignment */
.card-icon img {
  vertical-align: middle;
}

/* Badge text styling */
.badge-text {
  font-size: 1rem;
}

/* MQTT link container */
.mqtt-link-container {
  text-align: center;
  margin-top: 2em;
}

.mqtt-link-container a {
  font-size: 1.1em;
  color: #256029;
  text-decoration: underline;
}