/* ==========================================================================
   DDS Design Tokens — Material Design 3 palette, typography, spacing, shape
   ========================================================================== */

:root {
    /* --- Primary --- */
    --dds-primary: #17361d;
    --dds-primary-container: #2e4d32;
    --dds-on-primary: #ffffff;
    --dds-on-primary-container: #d8e7d5;

    /* --- Secondary --- */
    --dds-secondary: #556254;
    --dds-secondary-container: #d8e7d5;
    --dds-on-secondary: #ffffff;
    --dds-on-secondary-container: #131f12;

    /* --- Error --- */
    --dds-error: #ba1a1a;
    --dds-error-container: #ffdad6;
    --dds-on-error: #ffffff;
    --dds-on-error-container: #410002;

    /* --- Success (custom extension) --- */
    --dds-success: #2e6b30;
    --dds-success-container: #b8f5b0;

    /* --- Warning (custom extension) --- */
    --dds-warning: #7c5800;
    --dds-warning-container: #ffdea6;

    /* --- Info (custom extension) --- */
    --dds-info: #006b5f;
    --dds-info-container: #73f8e3;

    /* --- Surface & Background --- */
    --dds-background: #fafaf4;
    --dds-surface: #fafaf4;
    --dds-surface-container: #eeeee9;
    --dds-surface-container-high: #e8e8e3;
    --dds-surface-container-low: #f4f4ee;
    --dds-surface-container-lowest: #ffffff;
    --dds-on-surface: #1a1c19;
    --dds-on-surface-variant: #424841;

    /* --- Outline --- */
    --dds-outline: #737971;
    --dds-outline-variant: #c2c8bf;

    /* --- Typography --- */
    --dds-font-family: 'Public Sans', system-ui, -apple-system, sans-serif;
    --dds-font-size-xs: 0.625rem;   /* 10px — labels */
    --dds-font-size-sm: 0.75rem;    /* 12px */
    --dds-font-size-base: 0.875rem; /* 14px */
    --dds-font-size-md: 1rem;       /* 16px */
    --dds-font-size-lg: 1.25rem;    /* 20px */
    --dds-font-size-xl: 1.5rem;     /* 24px */
    --dds-font-size-2xl: 2rem;      /* 32px */
    --dds-font-size-3xl: 2.5rem;    /* 40px */
    --dds-font-weight-normal: 400;
    --dds-font-weight-medium: 500;
    --dds-font-weight-semibold: 600;
    --dds-font-weight-bold: 700;
    --dds-tracking-normal: 0;
    --dds-tracking-wide: 0.025em;
    --dds-tracking-widest: 0.08em;

    /* --- Spacing --- */
    --dds-space-1: 0.25rem;   /* 4px */
    --dds-space-2: 0.5rem;    /* 8px */
    --dds-space-3: 0.75rem;   /* 12px */
    --dds-space-4: 1rem;      /* 16px */
    --dds-space-5: 1.25rem;   /* 20px */
    --dds-space-6: 1.5rem;    /* 24px */
    --dds-space-8: 2rem;      /* 32px */

    /* --- Shape --- */
    --dds-radius-sm: 0.125rem;  /* 2px — sharp */
    --dds-radius-md: 0.25rem;   /* 4px */
    --dds-radius-lg: 0.5rem;    /* 8px */
    --dds-radius-full: 9999px;

    /* --- Elevation --- */
    --dds-shadow-sm: 0 1px 2px rgba(23, 54, 29, 0.04);
    --dds-shadow-md: 0 2px 4px rgba(23, 54, 29, 0.06);
    --dds-shadow-lg: 0 4px 12px rgba(23, 54, 29, 0.08);

    /* --- Layout --- */
    --dds-sidebar-width: 16rem;     /* 256px */
    --dds-topbar-height: 3.5rem;    /* 56px */
}