:root {
    /* Brand Colors */
    --color-broome-green: #00A000;
    --color-broome-black: #000000;
    --color-broome-white: #FFFFFF;

    --color-river-blue: #4A90A4;
    --color-sky-blue: #E8F4F8;

    --color-grass-green: #7ED957;
    --color-meadow-green: #006B00;

    /* Neutral Colors */
    --color-charcoal: #2D2D2D;
    --color-gray-medium: #6B6B6B;
    --color-gray-light: #F5F5F5;
    --color-gray-border: #DDDDDD;

    /* Semantic Aliases */
    --color-primary: var(--color-broome-green);
    --color-primary-light: var(--color-grass-green);
    --color-primary-dark: var(--color-meadow-green);

    --color-secondary: var(--color-river-blue);
    --color-secondary-light: var(--color-sky-blue);

    --color-white: var(--color-broome-white);
    --color-black: var(--color-broome-black);

    /* Typography */
    --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont,
                           'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;

    --font-size-hero: clamp(2rem, 5vw, 4rem);
    --font-size-h1: clamp(1.75rem, 4vw, 3rem);
    --font-size-h2: clamp(1.5rem, 3vw, 2.5rem);
    --font-size-h3: clamp(1.25rem, 2.5vw, 2rem);
    --font-size-h4: clamp(1.125rem, 2vw, 1.5rem);
    --font-size-body-lg: clamp(1.125rem, 2vw, 1.25rem);
    --font-size-body: clamp(1rem, 1.5vw, 1.125rem);
    --font-size-body-sm: clamp(0.875rem, 1vw, 1rem);

    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-tight: 1.2;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.8;

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

    /* Layout */
    --container-max-width: 1200px;
    --container-padding: var(--space-lg);

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;

    /* Z-index layers */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
}