:root {
    /* Brand Colors — extracted from BIS services deck */
    --color-teal: #155F82;
    --color-navy: #104863;
    --color-dark: #0A1628;
    --color-crimson: #550000;
    --color-white: #FFFFFF;
    --color-off-white: #F5F7FA;
    --color-text: #0F172A;
    --color-text-secondary: #64748B;
    --color-border: #E2E8F0;
    --color-success: #10B981;

    /* Teal palette variations */
    --color-teal-light: #1A7BA6;
    --color-teal-dark: #0E4A64;
    --color-teal-hover: #1A7BA6;

    /* Typography */
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Layout */
    --container-max: 1280px;
    --container-padding: 1.5rem;
    --section-padding: 5rem 0;
    --card-radius: 0.75rem;
    --card-shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --card-shadow-hover: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

@media (max-width: 768px) {
    :root {
        --text-5xl: 2.25rem;
        --text-6xl: 2.75rem;
        --section-padding: 3rem 0;
        --container-padding: 1rem;
    }
}