:root {
    --bg-color: #ffffff;
    --text-color: #333333;
    --accent-color: #0056b3;
    --border-color: #e0e0e0;
    --hover-color: #003d82;
    --theme-bg: #f5f5f5;
    --theme-border: #ddd;
    --theme-hover: #e0e0e0;
    --date-color: #555555;
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #eaeaea;
    --bg-hover: #f0f0f0;
    --text-primary: #333333;
    --button-bg: #f5f5f5;
    --button-hover-bg: #e0e0e0;
    --focus-outline-color: #0056b3;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #1a1a1a;
        --text-color: #e0e0e0;
        --accent-color: #5fa9ff;
        --border-color: #404040;
        --hover-color: #8ac2ff;
        --theme-bg: #2d2d2d;
        --theme-border: #404040;
        --theme-hover: #3d3d3d;
        --date-color: #a0a0a0;
        --bg-primary: #1a1a1a;
        --bg-secondary: #2d2d2d;
        --bg-tertiary: #3d3d3d;
        --bg-hover: #333333;
        --text-primary: #e0e0e0;
        --button-bg: #2d2d2d;
        --button-hover-bg: #3d3d3d;
        --focus-outline-color: #5fa9ff;
    }
}

html[data-theme='light'] {
    --bg-color: #ffffff;
    --text-color: #333333;
    --accent-color: #0056b3;
    --border-color: #e0e0e0;
    --hover-color: #003d82;
    --theme-bg: #f5f5f5;
    --theme-border: #ddd;
    --theme-hover: #e0e0e0;
    --date-color: #555555;
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #eaeaea;
    --bg-hover: #f0f0f0;
    --text-primary: #333333;
    --button-bg: #f5f5f5;
    --button-hover-bg: #e0e0e0;
    --focus-outline-color: #0056b3;
}

html[data-theme='dark'] {
    --bg-color: #1a1a1a;
    --text-color: #e0e0e0;
    --accent-color: #5fa9ff;
    --border-color: #404040;
    --hover-color: #8ac2ff;
    --theme-bg: #2d2d2d;
    --theme-border: #404040;
    --theme-hover: #3d3d3d;
    --date-color: #a0a0a0;
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3d3d3d;
    --bg-hover: #333333;
    --text-primary: #e0e0e0;
    --button-bg: #2d2d2d;
    --button-hover-bg: #3d3d3d;
    --focus-outline-color: #5fa9ff;
}