:root {
    --primary-color: #1E90FF; /* Base blue - vibrant and central */
    --secondary-color: #40C4FF; /* Lighter shade - fresh and energetic */
    --bg-primary: 0 4px 15px rgba(30, 144, 255, 0.3); /* Shadow based on base blue */
    --deep-sky-blue: #87CEFA; /* Light, vibrant sky blue */
    --steel-blue: #4682B4; /* Muted, sophisticated mid-tone (slightly adjusted) */
    --navy-blue: #104E8B; /* Dark, rich blue */
    --cornflower-blue: #6495ED; /* Soft, approachable blue (slightly adjusted) */
    --aqua-marine: #B0E2FF; /* Very light, fresh blue */
}