/* ==========================================================================
   Design Tokens - The Ataraxia Institute
   ========================================================================== */

:root {
    /* Primary palette - academic navy and gold */
    --color-primary: #1B2A4A;
    --color-primary-light: #2C4070;
    --color-primary-dark: #0F1B33;
    --color-primary-rgb: 27, 42, 74;
    --color-accent: #C4952B;
    --color-accent-light: #D4A94A;
    --color-accent-dark: #A67D1F;

    /* Neutral palette */
    --color-text: #2D3436;
    --color-text-light: #636E72;
    --color-text-muted: #95A5A6;
    --color-text-inverse: #FFFFFF;
    --color-bg: #FAFBFC;
    --color-bg-alt: #F0F2F5;
    --color-surface: #FFFFFF;
    --color-border: #DFE6E9;
    --color-border-light: #EDF0F2;

    /* Status colors */
    --color-success: #00B894;
    --color-info: #0984E3;
    --color-warning: #FDCB6E;

    /* Typography - system font stack, no external requests */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
                    Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
    --font-family-serif: Georgia, 'Times New Roman', Times, serif;
    --font-family-mono: 'SF Mono', SFMono-Regular, Consolas, 'Liberation Mono',
                         Menlo, monospace;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3rem;

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

    --line-height-tight: 1.25;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.8;

    --letter-spacing-tight: -0.025em;
    --letter-spacing-wide: 0.05em;

    /* Spacing scale */
    --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: 1200px;
    --container-narrow: 800px;
    --sidebar-width: 320px;
    --header-height: 72px;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(var(--color-primary-rgb), 0.08);
    --shadow-md: 0 4px 12px rgba(var(--color-primary-rgb), 0.1);
    --shadow-lg: 0 8px 24px rgba(var(--color-primary-rgb), 0.12);
    --shadow-xl: 0 12px 36px rgba(var(--color-primary-rgb), 0.15);

    /* Borders */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;
}