:root {
    --mt-color-base: #F6F9FC;
    --mt-color-base-dark: #F6F9FC;
    --mt-color-base-light: #F6F9FC;
    --mt-color-base-contrast: #171C26;
    --mt-color-base-value: 246, 249, 252;
    --mt-color-base-contrast-value: 23, 28, 38;
    --mt-color-primary: hsl(18, 100%, 54%);
    --mt-color-primary-dark: hsl(18, 100%, 44%);
    --mt-color-primary-light: hsl(18, 100%, 54%);
    --mt-color-primary-contrast: var(--mt-color-base);
    --mt-color-primary-value: 18, 100%, 54%;
    --mt-color-primary-dark-value: 18, 100%, 54%;
    --mt-color-primary-contrast-value: var(--mt-color-base-value);
    --mt-color-accent: #f8f9fb;
    --mt-color-accent-dark: #f8f9fb;
    --mt-color-accent-light: #f8f9fb;
    --mt-color-accent-contrast: var(--mt-color-base-contrast);
    --mt-color-accent-contrast-value: var(--mt-color-base-contrast-value);
    --mt-color-secondary: hsl(18, 100%, 54%);
    --mt-color-secondary-dark: hsl(18, 100%, 44%);
    --mt-color-secondary-light: hsl(18, 100%, 54%);
    --mt-color-secondary-contrast: var(--mt-color-base);
    --mt-color-secondary-value: 18, 100%, 54%;
    --mt-color-tint: #e8eef4;
    --mt-color-tint-contrast: var(--mt-color-base-contrast);
    --mt-color-tint-contrast-value: var(--mt-color-base-contrast-value);
    --mt-color-shade:hsl(221.05deg 23.46% 15.88%);
    --mt-color-shade-contrast: var(--mt-color-base);
    --mt-color-shade-contrast-value: var(--mt-color-base-value);
    --mt-color-dark-colored: hsl(210.9, 100%, 12.5%);
    --mt-color-dark-colored-contrast: var(--mt-color-base);
    --mt-color-dark-colored-value: 18, 100%, 24%;
    --mt-color-dark-colored-contrast-value: var(--mt-color-base-value);
    --mt-color-colored: var(--mt-color-primary);
    --mt-color-colored-contrast: var(--mt-color-primary-contrast);
    --mt-color-colored-value: var(--mt-color-primary-value);
    --mt-color-colored-contrast-value: var(--mt-color-primary-contrast-value);
    --mt-color-bright: #ffffff;
    --mt-color-bright-contrast: var(--mt-color-base-contrast);
    --mt-color-bright-contrast-value: var(--mt-color-base-contrast-value);
    --mt-color-dark: #000000;
    --mt-color-dark-contrast: var(--mt-color-base);
    --mt-color-dark-contrast-value: var(--mt-color-base-value);
    --mt-color-pattern: #ffffff;
    --mt-color-pattern-contrast: var(--mt-color-base-contrast);
    --mt-color-pattern-contrast-value: var(--mt-color-base-contrast-value);
    --mt-color-default: #171C26;
    --mt-color-default-light: #1F2532;
    --mt-color-default-contrast: var(--mt-color-base);
    --mt-color-default-value: 23, 28, 38;
    --mt-color-default-contrast-value: var(--mt-color-base-value);
    --mt-color-success: #3E9300;
    --mt-color-success-dark: #547f1f;
    --mt-color-success-contrast: #ffffff;
    --mt-color-danger: #CC0000;
    --mt-color-danger-dark: #980a00;
    --mt-color-danger-contrast: #ffffff;
    --mt-color-warning: #EA9900;
    --mt-color-warning-dark: #e2630b;
    --mt-color-warning-contrast: #ffffff;
    --mt-form-border: rgba(var(--mt-color-base-value), 0.3);
    --mt-form-border-contrast: rgba(var(--mt-color-base-contrast-value), 0.2);
    --mt-form-border-focus: var(--mt-color-primary);
    --mt-form-border-focus-contrast: rgba(var(--mt-color-base-contrast-value), 1);
    --mt-form-color: var(--mt-color-base);
    --mt-form-color-contrast: var(--mt-color-base-contrast);
    --mt-form-label-color: rgba(var(--mt-color-base-value), 0.9);
    --mt-form-placeholder: rgba(var(--mt-color-base-value), 0.5);
    --mt-form-placeholder-contrast: rgba(var(--mt-color-base-contrast-value), 0.5);
    --mt-active-cell: hsla(var(--mt-color-primary-value), 0.12);
    --mt-form-disabled-background-color: hsl(221deg 23% 20%);
    --mt-form-disabled-border-color: hsl(220deg 25% 20%);
    --mt-form-disabled-color: hsl(210deg 50% 98% / 20%);
    --mt-submit-disabled-border: hsl(18deg, 100%, 40%);
    --mt-submit-disabled-color: hsl(18deg, 100%, 40%);
    --mt-submit-disabled-background-color: #fff;

    /* --- Palette BDF --- */

    /* Alias semantiques (raccourcis vers MTT) */
    --bdf-dark: var(--mt-color-base-contrast);
    --bdf-gris-fond: var(--mt-color-base);
    --bdf-gris-bord: rgba(var(--mt-color-base-contrast-value), 0.12);
    --bdf-tint: var(--mt-color-tint);
    --bdf-texte: var(--mt-color-base-contrast);
    --bdf-texte-muted: rgba(var(--mt-color-base-contrast-value), 0.55);

    /* Orange (accent) */
    --bdf-orange: #ff6622;
    --bdf-orange-hover: #ff8844;
    --bdf-orange-dark: #e55510;

    /* Marine (navy, gradients, fonds sombres) */
    --bdf-marine: #001c3c;
    --bdf-marine-deep: #0a1929;
    --bdf-marine-lt: #1a4a6e;
    --bdf-marine-md: #2e6894;

    /* Bleu (texte secondaire, badges, header) */
    --bdf-bleu: #4a7396;
    --bdf-bleu-header: #30638b;
    --bdf-certif: #5a6c7d;

    /* Gris */
    --bdf-gris-clair: #f8f9fa;
    --bdf-gris-bord-lt: #e0e0e0;
    --bdf-texte-sombre: #333333;

    /* Statut / badges */
    --bdf-rouge: #e74c3c;
}