/* 1. Monolith (The Matrix) */
[data-theme="monolith"] {
    --page-bg: #000000;
    --board-bg: #080808;
    --snake-color: #FFFFFF;
    --apple-color: #00FF41;
    --ui-text: #444444;
    /* Splash Screen */
    --splash-bg: rgba(0, 0, 0, 0.9);
    --title-text: #00FF41;
    --btn-text: #00FF41;
    --label-text: #222222;
    /* Game End */
    --end-bg: rgba(0, 0, 0, 0.95);
    --end-title: #00FF41;
}

/* 2. Nord Frost (Arctic) */
[data-theme="nord"] {
    --page-bg: #2E3440;
    --board-bg: #3B4252;
    --snake-color: #88C0D0;
    --apple-color: #BF616A;
    --ui-text: #D8DEE9;
    /* Splash Screen */
    --splash-bg: rgba(46, 52, 64, 0.95);
    --title-text: #E5E9F0;
    --btn-text: #88C0D0;
    --label-text: #4C566A;
    /* Game End */
    --end-bg: rgba(36, 41, 51, 0.9);
    --end-title: #BF616A;
}

/* 3. Parchment (Zen Minimalist) */
[data-theme="parchment"] {
    --page-bg: #F5F2E9;
    --board-bg: #EBE7DA;
    --snake-color: #4A5D4E;
    --apple-color: #C1666B;
    --ui-text: #8C8A81;
    /* Splash Screen */
    --splash-bg: rgba(245, 242, 233, 0.98);
    --title-text: #4A5D4E;
    --btn-text: #C1666B;
    --label-text: #B4B2A9;
    /* Game End */
    --end-bg: rgba(235, 231, 218, 0.95);
    --end-title: #C1666B;
}

/* 4. Cyberpunk (Night City) */
[data-theme="cyberpunk"] {
    --page-bg: #0B0E14;
    --board-bg: #151921;
    --snake-color: #F0DB4F;
    --apple-color: #FF00FF;
    --ui-text: #4E5569;
    /* Splash Screen */
    --splash-bg: rgba(11, 14, 20, 0.9);
    --title-text: #FF00FF;
    --btn-text: #F0DB4F;
    --label-text: #343A46;
    /* Game End */
    --end-bg: rgba(7, 9, 13, 0.98);
    --end-title: #FF00FF;
}

/* 5. Blue Hour (Technical) */
[data-theme="blue"] {
    --page-bg: #05070A;
    --board-bg: #0D1117;
    --snake-color: #58A6FF;
    --apple-color: #F85149;
    --ui-text: #8B949E;
    /* Splash Screen */
    --splash-bg: rgba(5, 7, 10, 0.9);
    --title-text: #58A6FF;
    --btn-text: #FFFFFF;
    --label-text: #484F58;
    /* Game End */
    --end-bg: rgba(3, 4, 6, 0.95);
    --end-title: #F85149;
}

/* 6. Dracula (Obsidian & Crimson) */
[data-theme="vampire"] {
    --page-bg: #100C0D;
    --board-bg: #1A1415;
    --snake-color: #E9E9E9;
    --apple-color: #950101;
    --ui-text: #5C4B4B;
    /* Splash Screen */
    --splash-bg: rgba(16, 12, 13, 0.98);
    --title-text: #950101;
    --btn-text: #E9E9E9;
    --label-text: #3D2B2B;
    /* Game End */
    --end-bg: rgba(0, 0, 0, 0.98);
    --end-title: #950101;
}