/* Design Tokens */
:root {
    --color-brand: #315d46;
    --color-brand-hover: #254b38;
    --color-brand-contrast: #ffffff;

    --color-background: #f5f6f4;
    --color-surface: #ffffff;
    --color-text: #20231f;
    --color-muted: #687069;
    --color-border: #d8ddd9;

    --color-success: #287044;
    --color-success-bg: #e8f5e9;
    --color-warning: #9a6b00;
    --color-warning-bg: #fff8e1;
    --color-danger: #a33434;
    --color-danger-bg: #fdecea;
    --color-info: #1565c0;
    --color-info-bg: #e3f2fd;

    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    --content-width: 72rem;
    --sidebar-width: 16rem;

    --font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-mono: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, monospace;

    --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: 1.875rem;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 16px rgba(0,0,0,0.1);

    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}