:root {
    /* Colors */
    --color-primary: #0f62fe;
    /* IBM Blue-ish */
    --color-primary-dark: #0043ce;
    --color-secondary: #1e293b;
    --color-accent: #00b8ff;
    --color-bg-light: #f4f7f6;
    --color-bg-white: #ffffff;
    --color-text-main: #161616;
    --color-text-light: #525252;
    --color-border: #e0e0e0;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0f62fe 0%, #00b8ff 100%);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);

    /* Typography */
    --font-family-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 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);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;

    /* Layout */
    --container-width: 1200px;
    --header-height: 80px;
}