html[data-theme="high-contrast"] {
    color-scheme: light;

    --color-base: #005a5c; /* High-contrast teal */
    --color-mint: #e5fff8; /* Pale mint */
    --color-dark: #000000;
    --color-light-accent: #ffd800; /* Vivid yellow */
    --color-secondary-accent: #ffca3a; /* Warm yellow */
    --color-highlight: #006b3c; /* Deep green */
    --color-background: #ffffff;
    --color-text: #000000;
    --color-elevated-background: #ffffff;
    --color-elevated-text: #000000;

    --color-border: #000000;
    --color-elevated-border: var(--color-border);
    --color-invalid: #b00020;
}