:root {
  --primary-color: #0F172A; /* Modern Navy Blue */
  --secondary-color: #FFFFFF;
  --accent-color: #F59E0B; /* Gold/Amber */
  --success-color: #10B981; /* Emerald Green */
  --danger-color: #EF4444; /* Red */
  --warning-color: #F97316; /* Orange */
  --info-color: #0EA5E9; /* Sky Blue */
  --text-color: #334155;
  --bg-color: #F8FAFC;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.5);
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

body.dark-mode {
  --primary-color: #1E293B; /* Lighter Navy for Dark Mode */
  --secondary-color: #0F172A;
  --text-color: #F8FAFC;
  --bg-color: #020617;
  --glass-bg: rgba(15, 23, 42, 0.7);
  --glass-border: rgba(30, 41, 59, 0.5);
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

/* Glassmorphism Classes */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
}

/* Material Design 3 Input */
.form-control-md3 {
  background-color: rgba(255, 255, 255, 0.8);
  border: 1px solid #E2E8F0;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  transition: all 0.2s ease;
}

body.dark-mode .form-control-md3 {
  background-color: rgba(15, 23, 42, 0.8);
  border-color: #334155;
  color: #F8FAFC;
}

.form-control-md3:focus {
  background-color: #FFFFFF;
  border-color: var(--info-color);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.2);
}

body.dark-mode .form-control-md3:focus {
  background-color: #0F172A;
}

/* Buttons */
.btn-primary-custom {
  background-color: var(--primary-color);
  color: #FFFFFF;
  border: none;
  border-radius: 8px;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-md);
}

.btn-primary-custom:hover {
  background-color: #1E293B;
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Micro Interactions */
.hover-scale {
  transition: transform 0.2s ease;
}
.hover-scale:hover {
  transform: scale(1.02);
}

/* Skeleton Loading */
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: skeletonLoading 1.5s infinite;
  border-radius: 8px;
}

body.dark-mode .skeleton {
  background: linear-gradient(90deg, #1e293b 25%, #334155 50%, #1e293b 75%);
}

@keyframes skeletonLoading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Utilities */
.text-primary-custom { color: var(--primary-color) !important; }
.text-accent { color: var(--accent-color) !important; }
.bg-primary-custom { background-color: var(--primary-color) !important; }
.bg-accent { background-color: var(--accent-color) !important; }