:root {
  --bg-color: #0b0c10;
  --card-bg: rgba(22, 26, 38, 0.65);
  --border-color: rgba(255, 255, 255, 0.08);
  --text-primary: #f5f6fa;
  --text-secondary: #8f9cae;
  
  --primary-color: #00d2ff;
  --primary-glow: rgba(0, 210, 255, 0.4);
  
  --danger-color: #ff3838;
  --danger-glow: rgba(255, 56, 56, 0.4);
  
  --success-color: #2ed573;
  --success-glow: rgba(46, 213, 115, 0.4);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: hidden;
  position: relative;
}

/* Background decorations */
.background-decor {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.circle {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
}

.circle-1 {
  width: 400px;
  height: 400px;
  background-color: var(--primary-color);
  top: -100px;
  right: -50px;
  animation: float 20s infinite alternate;
}

.circle-2 {
  width: 350px;
  height: 350px;
  background-color: var(--danger-color);
  bottom: -50px;
  left: -50px;
  animation: float 15s infinite alternate-reverse;
}

@keyframes float {
  0% { transform: translateY(0px) scale(1); }
  100% { transform: translateY(30px) scale(1.1); }
}

.container {
  width: 100%;
  max-width: 600px;
  padding: 24px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-color);
}

.logo {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: linear-gradient(45deg, var(--primary-color), var(--success-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge {
  padding: 8px 16px;
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.3s ease;
}

.connected {
  background-color: rgba(46, 213, 115, 0.15);
  color: var(--success-color);
  border: 1px solid rgba(46, 213, 115, 0.3);
  box-shadow: 0 0 10px rgba(46, 213, 115, 0.2);
}

.disconnected {
  background-color: rgba(255, 56, 56, 0.15);
  color: var(--danger-color);
  border: 1px solid rgba(255, 56, 56, 0.3);
  box-shadow: 0 0 10px rgba(255, 56, 56, 0.2);
}

/* Center Layout */
.grid-center {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 40vh;
  margin-bottom: 32px;
}

/* Glassmorphism Card */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 28px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  width: 100%;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  border-color: rgba(255, 255, 255, 0.15);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.card-header h2 {
  font-size: 1.35rem;
  font-weight: 600;
}

.card-content {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
}

.description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Status Indicators */
.status-indicator {
  padding: 6px 14px;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.status-indicator.on {
  background-color: var(--success-color);
  color: #000;
  box-shadow: 0 0 15px var(--success-glow);
}

.status-indicator.off {
  background-color: #313b4d;
  color: var(--text-secondary);
}

/* Buttons */
.btn {
  font-family: inherit;
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 24px;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), #00a8ff);
  color: #050608;
  box-shadow: 0 4px 15px rgba(0, 210, 255, 0.3);
}

.btn-primary:hover {
  transform: scale(1.02);
  box-shadow: 0 6px 20px rgba(0, 210, 255, 0.5);
}

.btn-relay {
  width: 100%;
}

.btn-relay.active {
  background: linear-gradient(135deg, var(--danger-color), #ff5252);
  color: white;
  box-shadow: 0 4px 15px rgba(255, 56, 56, 0.3);
}

.btn-relay.active:hover {
  box-shadow: 0 6px 20px rgba(255, 56, 56, 0.5);
}

/* Footer */
footer {
  text-align: center;
  margin-top: 16px;
  color: var(--text-secondary);
  font-size: 0.85rem;
}