* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Roboto, system-ui, sans-serif;
}

:root {
  --bg-primary: #0a0a14;
  --bg-secondary: #12121f;
  --bg-card: #1a1a2e;
  --bg-hover: #252542;
  --text-primary: #ffffff;
  --text-secondary: #a0a0c0;
  --text-muted: #6b6b8b;
  --accent-blue: #4a6cf7;
  --accent-blue-hover: #3a5be0;
  --accent-green: #2ecc71;
  --accent-green-dim: #1e8b4c;
  --accent-red: #e74c3c;
  --accent-red-dim: #c0392b;
  --accent-orange: #f39c12;
  --accent-yellow: #f1c40f;
  --border-color: #2a2a4a;
  --border-light: #33334d;
  --slider-track: #2a2a4a;
  --slider-thumb: #4a6cf7;
  --shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
  --shadow-hover: 0 12px 30px rgba(0, 0, 0, 0.7);
}

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
}

.app-container {
  max-width: 1600px;
  margin: 0 auto;
  padding: 20px;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 25px;
  background: var(--bg-secondary);
  border-radius: 20px;
  margin-bottom: 25px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
}

.logo h1 {
  font-size: 1.8rem;
  font-weight: 600;
  background: linear-gradient(135deg, #fff 0%, #a0a0c0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo .model {
  font-size: 1rem;
  background: var(--accent-blue);
  padding: 4px 12px;
  border-radius: 20px;
  margin-left: 10px;
  -webkit-text-fill-color: white;
}


.logo {
  display: flex;
  flex-direction: column;
}

.model-features {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.model {
  font-size: 1rem;
  padding: 4px 12px;
  border-radius: 20px;
  margin-left: 10px;
}

.model-m900 {
  background: linear-gradient(135deg, #4a6cf7, #6c5ce7);
  color: white;
}

.model-m6400 {
  background: linear-gradient(135deg, #00b894, #00cec9);
  color: white;
}

.model-m6200 {
  background: linear-gradient(135deg, #fdcb6e, #e17055);
  color: white;
}

/* Hide CH3 for non-M900 models */
body.model-m6400 #ch3Card,
body.model-m6200 #ch3Card {
  display: none;
}

/* Hide vacuum for M6200 */
body.model-m6200 #vacuumPanel {
  display: none;
}


.header-controls {
  display: flex;
  align-items: center;
  gap: 25px;
}

.time-display {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.connection-status {
  display: flex;
  align-items: center;
  gap: 8px;
}

.indicator {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  transition: all 0.3s ease;
}

.indicator.online {
  background: var(--accent-green);
  box-shadow: 0 0 15px var(--accent-green);
}

.indicator.offline {
  background: var(--accent-red);
}

#connectionText {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.connect-btn {
  background: var(--accent-blue);
  color: white;
  border: none;
  padding: 12px 25px;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.connect-btn:hover {
  background: var(--accent-blue-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.connect-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Dashboard */
.dashboard {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
  margin-bottom: 25px;
}

.channel-card { 
  position: relative; /* This is needed for the absolute positioning of badges */
  background: var(--bg-card);
  border-radius: 25px;
  padding: 25px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

.channel-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-hover);
}

.channel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

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

.channel-title h2 {
  font-size: 1.5rem;
  font-weight: 600;
}

.handle-badge {
  background: var(--accent-blue);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.channel-status {
  display: flex;
  align-items: center;
  gap: 8px;
}

.status-led {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.status-led.on {
  background: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
}

.status-led.standby {
  background: var(--accent-yellow);
  box-shadow: 0 0 10px var(--accent-yellow);
}

.status-led.off {
  background: var(--accent-red);
}

.status-led.error {
  background: var(--accent-red);
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.temp-display {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 25px;
  padding: 20px;
  background: #000000;
  border-radius: 20px;
}

.current-temp {
  display: flex;
  align-items: baseline;
}

.temp-value {
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1;
  /*background: linear-gradient(135deg, #fff 0%, var(--accent-blue) 100%); */
  color: var(--accent-green);
  -webkit-background-clip: text;
  /* -webkit-text-fill-color: transparent; */
}

.temp-unit {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-left: 5px;
}

.setpoint-display {
  display: flex;
  align-items: baseline;
  gap: 5px;
}

.setpoint-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.setpoint-value {
  font-size: 2rem;
  font-weight: 600;
  color: #ffffff;
}

.channel-controls {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.power-control {
  display: flex;
  justify-content: center;
}

.power-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: none;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid var(--border-color);
}

.power-btn[data-state="on"] {
  background: var(--accent-green);
  color: white;
  border-color: var(--accent-green);
  box-shadow: 0 0 20px var(--accent-green);
}

.power-btn[data-state="off"] {
  background: var(--accent-red-dim);
  color: white;
  border-color: var(--accent-red);
}

.power-btn:hover {
  transform: scale(1.1);
}

.slider-control {
  width: 100%;
}

.temp-slider {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: var(--slider-track);
  outline: none;
  -webkit-appearance: none;
  margin-bottom: 10px;
}

.temp-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--slider-thumb);
  cursor: pointer;
  box-shadow: 0 0 10px var(--slider-thumb);
  transition: all 0.2s ease;
}

.temp-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.slider-limits {
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.channel-stats {
  display: flex;
  justify-content: space-around;
  padding-top: 15px;
  border-top: 1px solid var(--border-color);
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.stat-value {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-blue);
}

/* Vacuum Panel */
.vacuum-panel {
  background: var(--bg-card);
  border-radius: 20px;
  padding: 20px;
  margin-bottom: 25px;
  border: 1px solid var(--border-color);
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 15px;
}

.panel-header i {
  color: var(--accent-blue);
  font-size: 1.2rem;
}

.panel-header h3 {
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
}

.vacuum-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.vacuum-status-display {
  font-size: 1.1rem;
}

.vacuum-status-display .status-text {
  color: var(--accent-green);
  font-weight: 600;
}

.vacuum-buttons {
  display: flex;
  gap: 15px;
}

.vacuum-btn {
  padding: 10px 25px;
  border: none;
  border-radius: 25px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s ease;
}

.vacuum-btn.on {
  background: var(--accent-green);
  color: white;
}

.vacuum-btn.on:hover {
  background: var(--accent-green-dim);
  transform: translateY(-2px);
}

.vacuum-btn.off {
  background: var(--accent-red);
  color: white;
}

.vacuum-btn.off:hover {
  background: var(--accent-red-dim);
  transform: translateY(-2px);
}

/* System Info */
.system-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 15px;
  padding: 15px;
  background: var(--bg-secondary);
  border-radius: 15px;
  margin-bottom: 25px;
  border: 1px solid var(--border-color);
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.info-label {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.info-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent-blue);
}

/* Graph Panel */
.graph-panel {
  background: var(--bg-card);
  border-radius: 25px;
  padding: 25px;
  margin-bottom: 25px;
  border: 1px solid var(--border-color);
}

.graph-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.graph-header h3 {
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 500;
}

.graph-controls {
  display: flex;
  gap: 15px;
}

.graph-select {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 8px 20px;
  border-radius: 10px;
  cursor: pointer;
  outline: none;
}

.graph-select:hover {
  border-color: var(--accent-blue);
}

.clear-graph-btn {
  background: var(--accent-red-dim);
  color: white;
  border: none;
  padding: 8px 20px;
  border-radius: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all 0.3s ease;
}

.clear-graph-btn:hover {
  background: var(--accent-red);
  transform: translateY(-2px);
}

.chart-container {
  position: relative;
  height: 300px;
  width: 100%;
}

/* Advanced Panel */
.advanced-panel {
  background: var(--bg-card);
  border-radius: 25px;
  padding: 25px;
  margin-bottom: 25px;
  border: 1px solid var(--border-color);
}

.security-badge {
  background: var(--accent-orange);
  color: white;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  margin-left: 15px;
}

.security-section {
  margin-bottom: 25px;
}

.pin-entry {
  display: flex;
  gap: 15px;
  align-items: center;
  flex-wrap: wrap;
}

.security-select {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 10px 20px;
  border-radius: 10px;
  min-width: 180px;
  cursor: pointer;
}

.pin-entry input {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 9px 20px;
  border-radius: 10px;
  width: 120px;
  font-size: 1rem;
  text-align: center;
}

.pin-entry input:focus {
  border-color: var(--accent-blue);
  outline: none;
}

.unlock-btn {
  background: var(--accent-blue);
  color: white;
  border: none;
  padding: 10px 25px;
  border-radius: 25px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
}

.unlock-btn:hover {
  background: var(--accent-blue-hover);
  transform: translateY(-2px);
}

.lock-indicator {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--accent-red);
  font-size: 0.9rem;
}

.lock-indicator.unlocked {
  color: var(--accent-green);
}

/* Register Browser */
.register-browser {
  background: var(--bg-secondary);
  border-radius: 20px;
  padding: 20px;
}

.register-categories {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.category-btn {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 8px 15px;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.category-btn:hover {
  border-color: var(--accent-blue);
  color: var(--text-primary);
}

.category-btn.active {
  background: var(--accent-blue);
  color: white;
  border-color: var(--accent-blue);
}

.register-table {
  max-height: 300px;
  overflow-y: auto;
  margin-bottom: 20px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
}

.register-row {
  display: grid;
  grid-template-columns: 80px 100px 80px 1fr 80px;
  padding: 10px 15px;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: all 0.2s ease;
}

.register-row:hover {
  background: var(--bg-hover);
}

.register-row.selected {
  background: rgba(74, 108, 247, 0.2);
  border-left: 3px solid var(--accent-blue);
}

.register-row.header {
  background: var(--bg-card);
  color: var(--text-secondary);
  font-weight: 600;
  cursor: default;
  position: sticky;
  top: 0;
}

.register-row.header:hover {
  background: var(--bg-card);
}

.reg-level {
  font-size: 0.8rem;
  padding: 2px 8px;
  border-radius: 12px;
  text-align: center;
  width: fit-content;
}

.reg-level.level-4 {
  background: var(--accent-red-dim);
  color: white;
}

.reg-level.level-3 {
  background: var(--accent-orange);
  color: white;
}

.reg-level.level-2 {
  background: var(--accent-yellow);
  color: black;
}

.reg-level.level-1 {
  background: var(--accent-green-dim);
  color: white;
}

.reg-level.level-0 {
  background: var(--text-muted);
  color: white;
}

.register-controls {
  background: var(--bg-card);
  padding: 20px;
  border-radius: 15px;
}

.selected-register {
  margin-bottom: 15px;
  padding: 10px;
  background: var(--bg-secondary);
  border-radius: 10px;
}

.reg-label {
  color: var(--text-muted);
  margin-right: 10px;
}

#selectedRegName {
  font-weight: 600;
  color: var(--accent-blue);
}

#selectedRegAddr {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-left: 5px;
}

.register-actions {
  display: flex;
  gap: 15px;
  margin-bottom: 15px;
  flex-wrap: wrap;
}

.register-actions input {
  flex: 1;
  min-width: 150px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 10px 15px;
  border-radius: 10px;
}

.reg-action-btn {
  background: var(--accent-blue);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 25px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all 0.3s ease;
}

.reg-action-btn:hover {
  background: var(--accent-blue-hover);
  transform: translateY(-2px);
}

.reg-message {
  margin-bottom: 10px;
  padding: 10px;
  border-radius: 10px;
  font-size: 0.9rem;
}

.reg-message.success {
  background: rgba(46, 204, 113, 0.2);
  color: var(--accent-green);
}

.reg-message.error {
  background: rgba(231, 76, 60, 0.2);
  color: var(--accent-red);
}

.flash-warning {
  color: var(--accent-orange);
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px;
  background: rgba(243, 156, 18, 0.1);
  border-radius: 10px;
}

/* Footer */
footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  border-top: 1px solid var(--border-color);
  margin-top: 20px;
}

.footer-btn {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 8px 20px;
  border-radius: 25px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all 0.3s ease;
}

.footer-btn:hover {
  background: var(--accent-red);
  color: white;
  border-color: var(--accent-red);
}

.footer-right {
  display: flex;
  gap: 20px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 1200px) {
  .dashboard {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .dashboard {
    grid-template-columns: 1fr;
  }
  
  header {
    flex-direction: column;
    gap: 15px;
  }
  
  .header-controls {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .pin-entry {
    flex-direction: column;
  }
  
  .register-categories {
    justify-content: center;
  }
  
  .register-actions {
    flex-direction: column;
  }
}

/* ==================== Slim Custom Scroller ==================== */
/* For WebKit browsers (Chrome, Safari, Edge) */
.register-table::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

.register-table::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border-radius: 10px;
}

.register-table::-webkit-scrollbar-thumb {
  background: var(--accent-blue);
  border-radius: 10px;
  transition: all 0.3s ease;
}

.register-table::-webkit-scrollbar-thumb:hover {
  background: var(--accent-blue-hover);
  width: 8px;
}

.register-table::-webkit-scrollbar-corner {
  background: transparent;
}

/* For Firefox */
.register-table {
  scrollbar-width: thin;
  scrollbar-color: var(--accent-blue) var(--bg-secondary);
}

/* For the whole page - optional subtle scrollbar */
body::-webkit-scrollbar {
  width: 8px;
}

body::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

body::-webkit-scrollbar-thumb {
  background: var(--accent-blue);
  border-radius: 10px;
}

body::-webkit-scrollbar-thumb:hover {
  background: var(--accent-blue-hover);
}

/* Horizontal scrollbar for register table if needed */
.register-table::-webkit-scrollbar:horizontal {
  height: 6px;
}

/* Make the register table more compact */
.register-table {
  max-height: 300px;
  overflow-y: auto;
  overflow-x: auto;
  margin-bottom: 20px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-secondary);
}

/* Slimmer register rows */
.register-row {
  display: grid;
  grid-template-columns: 60px 80px 140px 1fr 80px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 0.9rem;
}

/* Even more compact for header */
.register-row.header {
  padding: 6px 12px;
  background: var(--bg-card);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 2px solid var(--accent-blue);
}

/* Adjust level badges */
.reg-level {
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 10px;
  text-align: center;
  width: fit-content;
  font-weight: 600;
}

/* Different colors for security levels */
.reg-level.level-4 {
  background: linear-gradient(135deg, #e74c3c, #c0392b);
  color: white;
}

.reg-level.level-3 {
  background: linear-gradient(135deg, #f39c12, #e67e22);
  color: white;
}

.reg-level.level-2 {
  background: linear-gradient(135deg, #f1c40f, #f39c12);
  color: black;
}

.reg-level.level-1 {
  background: linear-gradient(135deg, #2ecc71, #27ae60);
  color: white;
}

.reg-level.level-0 {
  background: linear-gradient(135deg, #95a5a6, #7f8c8d);
  color: white;
}

/* Address styling */
.register-row span:nth-child(2) {
  font-family: 'Courier New', monospace;
  color: var(--accent-orange);
}

/* Register name styling */
.register-row span:nth-child(3) {
  font-weight: 500;
  color: var(--accent-blue);
}

/* Description column - truncate with ellipsis */
.register-row span:nth-child(4) {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  padding-right: 10px;
  color: var(--text-secondary);
}

/* Access type badges */
.register-row span:nth-child(5) {
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 10px;
  text-align: center;
  width: fit-content;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  text-transform: uppercase;
}

/* Hover effect */
.register-row:hover {
  background: var(--bg-hover);
  transform: translateX(2px);
}

/* Selected row */
.register-row.selected {
  background: rgba(74, 108, 247, 0.15);
  border-left: 3px solid var(--accent-blue);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .register-row {
    grid-template-columns: 50px 70px 100px 1fr 70px;
    font-size: 0.8rem;
    padding: 6px 8px;
  }
  
  .register-row span:nth-child(4) {
    max-width: 150px;
  }
}

@media (max-width: 480px) {
  .register-row {
    grid-template-columns: 40px 60px 80px 1fr 60px;
    font-size: 0.7rem;
  }
}

/* ==================== Overheat Alert Modal ==================== */
.modal {
  display: none;
  position: fixed;
  z-index: 9999;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-content {
  background: linear-gradient(135deg, #2a1a1a, #1a0f0f);
  margin: 15% auto;
  padding: 0;
  border: 2px solid #e74c3c;
  border-radius: 30px;
  width: 90%;
  max-width: 450px;
  box-shadow: 0 0 50px rgba(231, 76, 60, 0.5);
  animation: slideIn 0.3s ease;
  overflow: hidden;
}

@keyframes slideIn {
  from {
    transform: translateY(-100px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.modal-header {
  background: linear-gradient(135deg, #e74c3c, #c0392b);
  padding: 25px;
  text-align: center;
  border-bottom: 2px solid #e74c3c;
}

.modal-header .alert-icon {
  font-size: 4rem;
  margin-bottom: 10px;
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.modal-header h2 {
  color: white;
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
  margin: 0;
}

.modal-body {
  padding: 30px;
  text-align: center;
}

.alert-message {
  font-size: 1.5rem;
  color: #e74c3c;
  font-weight: 600;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.alert-details {
  background: rgba(231, 76, 60, 0.1);
  padding: 15px;
  border-radius: 15px;
  border: 1px solid #e74c3c;
}

#overheatChannel {
  font-size: 2rem;
  font-weight: 700;
  color: #e74c3c;
  display: block;
  margin-bottom: 5px;
}

#overheatTemp {
  font-size: 2.5rem;
  font-weight: 800;
  color: white;
  display: block;
}

.modal-footer {
  padding: 20px;
  display: flex;
  gap: 15px;
  justify-content: center;
  border-top: 1px solid #333;
}

.reset-btn {
  background: linear-gradient(135deg, #e74c3c, #c0392b);
  color: white;
  border: none;
  padding: 12px 30px;
  border-radius: 25px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  flex: 1;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.reset-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 20px rgba(231, 76, 60, 0.5);
}

.close-btn {
  background: transparent;
  color: #888;
  border: 1px solid #444;
  padding: 12px 30px;
  border-radius: 25px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  flex: 1;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.close-btn:hover {
  background: #333;
  color: white;
}

/* ==================== Overheat Badges ==================== */
.overheat-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  background: #e74c3c;
  color: white;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  animation: pulse 1s infinite;
  box-shadow: 0 0 20px rgba(231, 76, 60, 0.5);
  z-index: 100;
}

/* Add position relative to channel cards */
.channel-card {
  position: relative;
}

/* Temperature warning colors */
.temp-value.overheat {
  color: #e74c3c;
  animation: pulse 1s infinite;
}

.temp-value.warning {
  color: #f39c12;
}

.temp-value.normal {
  color: #2ecc71;
}

/* ==================== Blinking Animation for Overheat ==================== */
@keyframes blink-red {
  0% { border-color: #e74c3c; box-shadow: 0 0 10px rgba(231, 76, 60, 0.5); }
  50% { border-color: transparent; box-shadow: none; }
  100% { border-color: #e74c3c; box-shadow: 0 0 10px rgba(231, 76, 60, 0.5); }
}

@keyframes blink-bg {
  0% { background-color: rgba(231, 76, 60, 0.2); }
  50% { background-color: transparent; }
  100% { background-color: rgba(231, 76, 60, 0.2); }
}

.channel-card.overheat {
  animation: blink-red 1s infinite;
  border-width: 2px;
  border-style: solid;
}

.channel-card.overheat .temp-value-large {
  animation: blink-bg 1s infinite;
  color: #e74c3c;
  font-weight: bold;
}

/* Mute Button */
.mute-btn {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  font-size: 1.2rem;
}

.mute-btn:hover {
  transform: scale(1.1);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.mute-btn.muted {
  color: #e74c3c;
  border-color: #e74c3c;
  background: rgba(231, 76, 60, 0.1);
}

.mute-btn.muted:hover {
  transform: scale(1.1);
  border-color: #e74c3c;
  color: #e74c3c;
  background: rgba(231, 76, 60, 0.2);
}

.connection-type-selector {
  display: flex;
  gap: 5px;
  margin-right: 10px;
}

.connection-option {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 5px 10px;
  border-radius: 15px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.connection-option:hover {
  border-color: var(--accent-blue);
  color: var(--text-primary);
}

.connection-option.active {
  background: var(--accent-blue);
  color: white;
  border-color: var(--accent-blue);
}

#wifiConfig {
  margin-top: 10px;
  padding: 10px;
  background: var(--bg-secondary);
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

#wifiConfig input {
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 8px;
  border-radius: 5px;
  margin-right: 5px;
}

#wifiConfig small {
  display: block;
  color: var(--text-muted);
  margin-top: 5px;
  font-size: 0.7rem;
}

.copyright {
  text-decoration: none;
  color: #4a6cf7;
}

.export-csv-btn {
  background: var(--accent-green);
  color: white;
  border: none;
  padding: 8px 20px;
  border-radius: 20px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.3s ease;
}

.export-csv-btn:hover {
  background: var(--accent-green-dim);
  transform: translateY(-2px);
}

.temp-input-group {
  display: flex;
  gap: 10px;
  align-items: center;
  margin: 10px 0;
}

.temp-input {
  flex: 1;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 1rem;
  text-align: center;
}

.temp-input:focus {
  outline: none;
  border-color: var(--accent-blue);
}

.set-btn {
  background: var(--accent-blue);
  color: white;
  border: none;
  padding: 8px 20px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
}

.set-btn:hover {
  background: var(--accent-blue-hover);
  transform: translateY(-2px);
}

.vacuum-image {  
  margin-right: 10px;
  vertical-align: middle;
  border-radius: 6px;
}