:root {
    /* Colors */
    /* Primary - Medical Blue Gradient */
    --primary-500: hsl(210, 85%, 55%);
    --primary-600: hsl(210, 85%, 48%);
    --primary-gradient: linear-gradient(135deg, hsl(210, 85%, 55%), hsl(200, 90%, 50%));

    /* Accent - Vibrant Green */
    --accent-500: hsl(160, 75%, 40%);
    --accent-gradient: linear-gradient(135deg, hsl(160, 75%, 40%), hsl(145, 70%, 35%));

    /* Neutrals */
    --bg-primary: hsl(210, 20%, 98%);
    --bg-secondary: hsl(0, 0%, 100%);
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-glass-dark: rgba(255, 255, 255, 0.9);

    --text-primary: hsl(215, 25%, 15%);
    --text-secondary: hsl(215, 15%, 45%);
    --text-tertiary: hsl(215, 10%, 60%);
    --text-inverse: hsl(0, 0%, 100%);

    /* Border */
    --border-light: rgba(0, 0, 0, 0.05);

    /* Typography */
    --font-family: 'Pretendard Variable', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;

    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
    --text-3xl: clamp(2rem, 1.7rem + 1.5vw, 3rem);
    --text-4xl: clamp(2.5rem, 2rem + 2.5vw, 4rem);

    /* 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-width: 1200px;
    --container-padding: 1.5rem;
    --header-height: 4rem;

    /* Effects */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.025);

    --glow-primary: 0 0 20px rgba(59, 130, 246, 0.3);
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-full: 9999px;

    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}