:root {
    /* Primary Brand Colors */
    --color-primary: #0f172a;
    /* Slate 900 - Keep as dark base */
    --color-primary-light: #334155;
    /* Slate 700 */

    /* Logo Colors */
    --color-brand-blue: #00AEEF;
    --color-brand-orange: #F26522;
    --color-brand-green: #39B54A;

    /* Semantic Mappings */
    --color-brand: var(--color-brand-blue);
    --color-brand-dark: #008ACD;
    --color-brand-light: #4DD0FC;

    --color-accent: var(--color-brand-orange);
    --color-accent-hover: #D85012;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --gradient-brand: linear-gradient(135deg, #00AEEF 0%, #008ACD 100%);
    --gradient-accent: linear-gradient(135deg, #F26522 0%, #D85012 100%);
    --gradient-glass: linear-gradient(145deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.6) 100%);

    /* Secondary Colors */
    --color-success: var(--color-brand-green);
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-info: #0ea5e9;

    /* Neutrals & Surfaces */
    --color-bg-body: #f8fafc;
    /* Slate 50 */
    --color-bg-surface: #ffffff;
    --color-text-main: #1e293b;
    /* Slate 800 */
    --color-text-secondary: #64748b;
    /* Slate 500 */
    --color-text-muted: #94a3b8;
    /* Slate 400 */
    --color-border: #e2e8f0;
    /* Slate 200 */

    /* Typography */
    --font-family-base: 'Inter', sans-serif;

    /* Modern Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3.5rem;
    --spacing-3xl: 5rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Elevated Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.5);
    /* Brand glow */

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.5);
    --glass-blur: blur(12px);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}