/* Default Theme (Sage Green / Wood) */
[data-theme="default"] {
    --bg-color: #5d6d5e;
    /* Sage Green */
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2);
    --accent-color: #8d6e63;
    /* Wood tone */
    --text-color: #f1f8e9;
    --scroll-glow-color: rgba(255, 213, 79, 0.4);

    /* Gradients */
    --bg-gradient: radial-gradient(circle at top left, #5d6d5e, #4a584b, #384239);
    --modal-gradient: linear-gradient(135deg, #4a584b, #384239);
    --win-gradient: linear-gradient(135deg, #fff3e0, #ffe0b2);

    /* Piece Colors - Natural Tones */
    --color-1: #e57373;
    /* Muted Red */
    --color-2: #ffd54f;
    /* Muted Yellow */
    --color-3: #aed581;
    /* Muted Green */
    --color-4: #64b5f6;
    /* Muted Blue */
    --color-5: #ba68c8;
    /* Muted Purple */
}

/* Purple Theme */
[data-theme="purple"] {
    --bg-color: #7238b4;
    /* Light Purple/Pink bg */
    --glass-bg: rgba(173, 143, 187, 0.25);
    --glass-border: rgba(255, 255, 255, 0.24);
    --glass-shadow: 0 8px 32px 0 rgba(30, 190, 24, 0.1);
    --accent-color: #b39ddb;
    /* Soft Purple */
    --text-color: #4a148c;
    --scroll-glow-color: rgb(114, 84, 248);
    /* Dark Purple text */

    /* Gradients */
    --bg-gradient: radial-gradient(circle at top left, #6f71f5, #6f71f5d7, #6f71f5b7);
    --modal-gradient: linear-gradient(135deg, #6f71f5, #6062f3);
    --win-gradient: linear-gradient(135deg, #6f71f5, #6062f3);

    /* Piece Colors - Purple */
    --color-1: #6f71f5;
    /* Purple */
    --color-2: #b988f1;
    /* Purple */
    --color-3: #2f3cacb0;
    /* Purple */
    --color-4: #87b9f3;
    /* Purple */
    --color-5: #4937ee;
    /* Purple Purple */
}

/* Neon Theme */
[data-theme="neon"] {
    --bg-color: #121212;
    /* Dark bg */
    --glass-bg: rgba(20, 20, 20, 0.6);
    --glass-border: rgba(0, 255, 255, 0.3);
    --glass-shadow: 0 0 15px rgba(0, 255, 255, 0.2);
    --accent-color: #00e5ff;
    /* Cyan */
    --text-color: #ffffff;
    --scroll-glow-color: rgba(0, 229, 255, 0.4);

    /* Gradients */
    --bg-gradient: radial-gradient(circle at top left, #212121, #000000);
    --modal-gradient: linear-gradient(135deg, #212121, #000000);
    --win-gradient: linear-gradient(135deg, #00e5ff, #2979ff);

    /* Piece Colors - Neon */
    --color-1: #ff1744;
    /* Neon Red */
    --color-2: #ffea00;
    /* Neon Yellow */
    --color-3: #00e676;
    /* Neon Green */
    --color-4: #2979ff;
    /* Neon Blue */
    --color-5: #d500f9;
    /* Neon Purple */
}

/* Grayscale Theme */
[data-theme="grayscale"] {
    --bg-color: #212121;
    /* Dark Grey */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
    --accent-color: #9e9e9e;
    /* Grey */
    --text-color: #eeeeee;
    --scroll-glow-color: rgba(158, 158, 158, 0.4);

    /* Gradients */
    --bg-gradient: radial-gradient(circle at top left, #424242, #212121, #000000);
    --modal-gradient: linear-gradient(135deg, #424242, #212121);
    --win-gradient: linear-gradient(135deg, #bdbdbd, #9e9e9e);

    /* Piece Colors - Grayscale */
    --color-1: #000000;
    --color-2: #5f5b5b4f;
    --color-3: #585757;
    --color-4: #8b8a8a;
    --color-5: #f1eded;
}