/* high-contrast theme */
[data-theme="high-contrast"] {
    color-scheme: dark;
    --bg: #000000;
    --panel: #0a0a0a;
    --text: #ffffff;
    --muted: #aaaaaa;
    --line: #444444;
    --accent: #ffff00;
    --accent-strong: #e0e000;
    --danger: #ff4444;
    --success: #44ff44;
    --shadow: 0 12px 28px rgba(0, 0, 0, 0.8);
}

[data-theme="high-contrast"] input,
[data-theme="high-contrast"] textarea {
    background: var(--panel);
    color: var(--text);
    border-color: var(--line);
}

[data-theme="high-contrast"] .sidebar {
    background: color-mix(in srgb, var(--bg) 80%, #000 20%);
}