[data-theme="dark"] {
    --color-primary: #CD853F;
    --color-primary-light: #DEB887;
    --color-primary-dark: #8B6914;
    --color-secondary: #D2691E;
    --color-accent: #F4A460;

    --color-bg: #121212;
    --color-bg-secondary: #1A1A1A;
    --color-surface: #1E1E1E;
    --color-surface-hover: #2A2A2A;

    --color-text: #F0F0F0;
    --color-text-secondary: #B0B0B0;
    --color-muted: #808080;
    --color-border: #333333;

    --color-success-bg: #1B3A1B;
    --color-warning-bg: #3A2E0A;
    --color-danger-bg: #3A1B1B;
    --color-info-bg: #1B2A3A;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .theme-icon-light { display: none; }
[data-theme="dark"] .theme-icon-dark { display: inline; }
[data-theme="light"] .theme-icon-light { display: inline; }
[data-theme="light"] .theme-icon-dark { display: none; }

@media (prefers-color-scheme: dark) {
    [data-theme="auto"] {
        --color-primary: #CD853F;
        --color-bg: #121212;
        --color-surface: #1E1E1E;
        --color-text: #F0F0F0;
        --color-text-secondary: #B0B0B0;
        --color-muted: #808080;
        --color-border: #333333;
    }
}