:root {
    /* Colors */
    --bg-board: #0079bf;
    --bg-list: #ebecf0;
    --bg-card: #ffffff;
    --bg-card-hover: #f4f5f7;
    --text-primary: #172b4d;
    --text-secondary: #5e6c84;
    --border-card: #091e4221;
    --shadow-card: 0 1px 0 #091e4221;
    --shadow-card-hover: 0 4px 8px rgba(0, 0, 0, 0.15);
    --bg-modal-overlay: rgba(0, 0, 0, 0.64);
    --bg-button: rgba(0, 0, 0, 0.1);
    --bg-button-hover: rgba(0, 0, 0, 0.2);

    /* Label colors */
    --label-green: #61bd4f;
    --label-yellow: #f2d600;
    --label-orange: #ff9f1a;
    --label-red: #eb5a46;
    --label-purple: #c377e0;
    --label-blue: #0079bf;
    --label-pink: #ff78cb;
    --label-sky: #00c2e0;
    --label-lime: #51e898;
    --label-gray: #c4c9cc;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 24px;

    /* Border radius */
    --radius-sm: 3px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* List dimensions */
    --list-width: 272px;
    --list-gap: 12px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Helvetica Neue', sans-serif;
    font-size: 14px;
    color: var(--text-primary);
    background-color: var(--bg-board);
    overflow-x: auto;
}