body {
    font-family: Arial, sans-serif;
    background-color: #1e1e1e;
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
}

h3 {
    margin: 5px 0;
    font-weight: normal;
}

#start-pause-button {
    padding: 8px 16px;
    margin: 10px 0 20px 0;
    font-size: 16px;
    border: none;
    border-radius: 6px;
    background-color: #00aaff;
    color: #fff;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

#start-pause-button:hover {
    background-color: #0088cc;
}

.grid {
    border: 2px solid #444;
    background-color: #333;
    height: 180px;
    width: 180px;
    display: flex;
    flex-wrap: wrap;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.6);
}

.grid div {
    height: 20px;
    width: 20px;
    transition: background-color 0.15s ease;
}

.ending-block {
    background-color: crimson;
}

.starting-block {
    background-color: royalblue;
}

.frog {
    background-color: limegreen !important;
    border-radius: 4px;
}

.l1,
.l2,
.l3 {
    background-color: saddlebrown;
}

.l4,
.l5 {
    background-color: lightblue;
}

.c1 {
    background-color: black;
}

.c2,
.c3 {
    background-color: silver;
}

.controls {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.controls button {
    padding: 8px 16px;
    font-size: 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

#start-button {
    background-color: #4CAF50;
    color: white;
}

#start-button:hover {
    background-color: #3e8e41;
}

#pause-button {
    background-color: #f44336;
    color: white;
}

#pause-button:hover {
    background-color: #c62828;
}