/* Base styles and CSS variables */
:root {
  --background: #ffffff;
  --foreground: #11181C;
  --card-background: #ffffff;
  --card-border: #E4E4E7;
  --primary: #18181B;
  --primary-foreground: #ffffff;
  --secondary: #27272A;
  --muted: #71717A;
  --btn-start: #28a745;
  --btn-start-hover: #56dc54;
  --btn-stop: #dc3545;
  --btn-stop-hover: #c82333;
  --accent: #4F46E5;
  --destructive: #721c24;
  --warning: #F59E0B;
  --success: #10B981;
  --status-idle-bg: #e9ecef;
  --status-idle-border: #ced4da;
  --status-idle-icon: #adb5bd;
  --status-alert-bg: #d4edda;
  --status-alert-border: #c3e6cb;
  --status-alert-icon: #28a745;
  --status-drowsy-bg: #f8d7da;
  --status-drowsy-border: #f5c6cb;
  --status-drowsy-icon: #dc3545;
  --status-yawning-bg: #fff3cd;
  --status-yawning-border: #ffeeba;
  --status-yawning-icon: #ffc107;
}

.dark-theme {
  --background: #18181B;
  --foreground: #ffffff;
  --card-background: #27272A;
  --card-border: #3F3F46;
  --primary: #ffffff;
  --primary-foreground: #18181B;
  --secondary: #A1A1AA;
  --muted: #71717A;
  --accent: #6366F1;
  --destructive: #350d12;
  --warning: #D97706;
  --success: #059669;
  --btn-start: #198754;
  --btn-start-hover: #157347;
  --btn-stop: #bb2d3b;
  --btn-stop-hover: #a52834;
  --status-idle-bg: #2a2a2a;
  --status-idle-border: #444444;
  --status-idle-icon: #888888;
  --status-alert-bg: #0d3321;
  --status-alert-border: #155724;
  --status-alert-icon: #28a745;
  --status-drowsy-bg: #350d12;
  --status-drowsy-border: #721c24;
  --status-drowsy-icon: #dc3545;
  --status-yawning-bg: #332701;
  --status-yawning-border: #664d03;
  --status-yawning-icon: #ffc107;
}

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

body {
  font-family: system-ui, -apple-system, sans-serif;
  background-color: var(--background);
  color: var(--foreground);
  line-height: 1.5;
  transition: background-color 0.3s, color 0.3s;
}

/* Theme toggle button */
.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  background: var(--card-background);
  border: 1px solid var(--card-border);
  color: var(--foreground);
  padding: 0.5rem;
  border-radius: 0.5rem;
  cursor: pointer;
  z-index: 100;
  transition: all 0.3s ease;
}

.theme-toggle:hover {
  background: var(--card-border);
}

.sun-icon {
  display: none;
}

.moon-icon {
  display: block;
}

.dark-theme .sun-icon {
  display: block;
}

.dark-theme .moon-icon {
  display: none;
}

/* Container and layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;}

.header {
  text-align: center;
  margin-bottom: 3rem;
}

.header h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--primary);
}

.header p {
  color: var(--muted);
  max-width: 600px;
  margin: 0 auto;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Cards */
.card1 {
  background: var(--card-background);
  border: 1px solid var(--card-border);
  border-radius: 0.75rem;
  padding: 1.5rem;
}

.card {
  background-color: var(--bg-secondary);
  border-radius: 8px;
  box-shadow: var(--card-shadow);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.card h2, .card1 h2 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--primary);
}



/* Camera container */
.camera-container {
  background: #000;
  border-radius: 0.5rem;
  aspect-ratio: 16/9;
  overflow: hidden;
  margin-bottom: 1rem;
  position: relative;
}

#camera-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #666;
}

#camera-placeholder i {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

#webcam {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: none;
}

/* Buttons */
.start-btn, .stop-btn {
  width: 100%;
  padding: 0.75rem;
  border-radius: 0.5rem;
  border: none;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.3s ease;
}

button i {
  margin-right: 0.5rem;
}

.start-btn {
  background-color: var(--btn-start);
  color: white;
}

.start-btn:hover {
  background-color: var(--btn-start-hover);
}

.stop-btn {
  background-color: var(--btn-stop);
  color: white;
}

.stop-btn:hover {
  background-color: var(--btn-stop-hover);
}


/* Status indicators */
.status {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  border-radius: 0.5rem;
  background: var(--card-background);
  border: 1px solid var(--card-border);
}

.status-icon {
  font-size: 1.5rem;
  color: var(--muted);
}

.status-text h3 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.status-text p {
  color: var(--muted);
  font-size: 0.875rem;
}

.status-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}

.status-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  background: var(--card-background);
  border: 1px solid var(--card-border);
  border-radius: 0.5rem;
}

.status-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--primary);
}

.status-badge {
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.875rem;
  font-weight: 500;
}

.status-badge.normal {
  background: var(--success);
  color: white;
}

.status-badge.alert {
  background: var(--destructive);
  color: white;
}
.status {
  display: flex;
  padding: 1.5rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
}

.status-icon {
  margin-right: 1rem;
  font-size: 2rem;
}

.status-text h3 {
  font-size: 1.2rem;
  margin-bottom: 0.25rem;
}

.status-text p {
  color: var(--text-secondary);
}

.status.idle {
  background-color: var(--status-idle-bg);
  border: 1px solid var(--status-idle-border);
}

.status.idle .status-icon {
  color: var(--status-idle-icon);
}

.status.alert {
  background-color: var(--status-alert-bg);
  border: 1px solid var(--status-alert-border);
}

.status.alert .status-icon {
  color: var(--status-alert-icon);
}

.status.drowsy {
  background-color: var(--status-drowsy-bg);
  border: 1px solid var(--status-drowsy-border);
}

.status.drowsy .status-icon {
  color: var(--status-drowsy-icon);
}

.status.yawning {
  background-color: var(--status-yawning-bg);
  border: 1px solid var(--status-yawning-border);
}

.status.yawning .status-icon {
  color: var(--status-yawning-icon);
}

/* Warning card */
.warning-card {
  background: var(--card-background);
  border: 1px solid var(--warning);
}

.warning-content {
  display: flex;
  gap: 1rem;
}

.warning-icon {
  flex-shrink: 0;
  color: var(--warning);
}

.warning-content h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--primary);
}

.warning-content p {
  color: var(--muted);
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
}

.warning-content ul {
  list-style-type: disc;
  padding-left: 1.25rem;
  color: var(--muted);
  font-size: 0.875rem;
}

/* Error container */
#error-container {
  position: fixed;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  width: 90%;
  max-width: 400px;
}

.error-alert {
  background: var(--destructive);
  color: white;
  padding: 1rem;
  border-radius: 0.5rem;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.hidden {
  display: none;
}

/* Info Section */
.info-section {
  margin-top: 1rem;
}

.info-section h3 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.info-section p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.info-section ul {
  list-style-type: disc;
  padding-left: 1.5rem;
  color: var(--text-secondary);
}

.info-section li {
  margin-bottom: 0.25rem;
}