:root {
    /* Base Variables */
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --white: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.1);
    
    /* Default Mode: Pomodoro */
    --primary-bg: #ba4949;
    --accent: #c46b6b;
    --text-color: #ffffff;
}

[data-mode="pomodoro"] {
    --primary-bg: #ba4949;
    --accent: #c46b6b;
}

[data-mode="short-break"] {
    --primary-bg: #38858a;
    --accent: #5e9ca0;
}

[data-mode="long-break"] {
    --primary-bg: #397097;
    --accent: #6089a8;
}

body {
    background-color: var(--primary-bg);
    color: var(--text-color);
    font-family: var(--font-main);
    transition: background-color 0.4s ease-in-out, color 0.2s;
    margin: 0;
    min-height: 100vh;
}