/*no commets this is all just css style*/
body {
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 0;
    padding: 0;
    background: #f4f4f4;
}
h1 {
    margin: 25px 0;
    font-size: 2.4em;
    color: #333;
}
#game-container {
    display: flex;
    justify-content: center;
    margin: 20px;
}
#grid-container {
    display: grid;
    gap: 6px;
    background: #ccc;
    padding: 12px;
    border-radius: 12px;
}
#large-grid-canvas {
    border-radius: 12px;
    cursor: pointer;
}
#grid-container button {
    width: 80px;
    height: 80px;
    border: none;
    border-radius: 6px;
    background-color: #fff;
    cursor: pointer;
    transition: background-color 0.3s;
}
#grid-container button.on {
    background-color: #4caf50;
}
#grid-container button.off {
    background-color: #000;
}
#grid-container button.win-glow {
    background-color: #4caf50;
    transition: background-color 0.15s ease;
}
#rules-toggle-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 16px 32px;
    font-size: 1.3em;
    font-weight: bold;
    border-radius: 8px;
    background: #007BFF;
    color: white;
    border: none;
    cursor: pointer;
    z-index: 1001;
    transition: background 0.3s;
}
#rules-toggle-btn:hover {
    background: #0056b3;
}
#rules-popup {
    position: fixed;
    top: 80px;
    right: 20px;
    width: 440px;
    padding: 20px 25px;
    background: #fff;
    border: 1px solid #ccc;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    text-align: left;
    z-index: 1000;
    display: none;
}
#rules-popup h3 {
    margin: 0 0 12px;
    font-size: 3em;
    color: #333;
    text-align: center;
}
#rules-popup ul {
    margin: 0;
    padding-left: 22px;
}
#rules-popup li {
    margin-bottom: 8px;
    color: #555;
    font-size: 1.5em;
    line-height: 1.5;
}
#controls {
    margin-top: 25px;
}
#controls p {
    font-size: 1.5em;
    margin: 12px 0;
}
button {
    padding: 14px 28px;
    font-size: 1.2em;
    cursor: pointer;
    border: none;
    border-radius: 6px;
    background: #007BFF;
    color: white;
    transition: background 0.3s;
    margin: 4px;
}
button:hover {
    background: #0056b3;
}
#solve-btn {
    background-color: #28a745;
    color: white;
    border: none;
    padding: 14px 28px;
    cursor: pointer;
    font-size: 1.2em;
}
#solve-btn:hover {
    background-color: #218838;
   
}

#custom-grid-input {
    width: 260px;
    height: 70px;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 18px;
    margin-bottom: 12px;
}
#custom-grid-input:focus {
    border-color: #007BFF;
    outline: none;
}
#set-custom-grid {
    background-color: #007BFF;
    color: white;
    border: none;
    padding: 14px 28px;
    cursor: pointer;
    font-size: 1.2em;
    border-radius: 6px;
    transition: background 0.3s;
}
#set-custom-grid:hover {
    background-color: #0056b3;
}

#experimental {
    margin-top: 25px;
    padding: 15px;
    border: 1px solid #ccc;
    border-radius: 8px;
    background: #f9f9f9;
}

#experimental div {
    margin-bottom: 12px;
}
#solve-speed-input {
    width: 80px;
}
#solve-speed-label {
    font-size: 0.95em;
    color: #555;
    margin-left: 4px;
}

#experimental input,
#experimental textarea {
    width: 260px;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 18px;
    margin-bottom: 12px;
}

#experimental button {
    padding: 14px 28px;
    font-size: 1.2em;
    cursor: pointer;
    border: none;
    border-radius: 6px;
    background: #007BFF;
    color: white;
    transition: background 0.3s;
}

#experimental button:hover {
    background: #0056b3;
}

#toggle-experimental-btn {
    margin-top: 25px;
    padding: 14px 28px;
    font-size: 1.2em;
    cursor: pointer;
    border: none;
    border-radius: 6px;
    background: #28a745;
    color: white;
    transition: background 0.3s;
}

#toggle-experimental-btn:hover {
    background: #218838;
}

/* Modal overlay */
#modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}
#modal-overlay.visible {
    display: flex;
}
#modal-box {
    background: #fff;
    border-radius: 16px;
    padding: 40px 50px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
    max-width: 420px;
    width: 90%;
    animation: modalPop 0.3s ease;
}
#modal-message {
    font-size: 1.4em;
    color: #333;
    margin: 0 0 25px;
    line-height: 1.5;
}
#modal-box.win #modal-message {
    font-size: 1.7em;
    color: #28a745;
    font-weight: bold;
}
#modal-close-btn {
    padding: 12px 40px;
    font-size: 1.1em;
    border-radius: 8px;
    background: #007BFF;
    color: white;
    border: none;
    cursor: pointer;
    transition: background 0.3s;
}
#modal-close-btn:hover {
    background: #0056b3;
}
@keyframes modalPop {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}