body {
    font-family: sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f0f0f0;
    margin: 0;
}

.container {
    display: flex;
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.left-panel {
    margin-right: 40px;
    text-align: center;
}

.cookie-area {
    margin-bottom: 20px;
}

#cookie {
    width: 200px;
    height: 200px;
    cursor: pointer;
    transition: transform 0.1s ease-in-out, box-shadow 0.1s ease-in-out;
    box-shadow: 0 6px 10px rgba(0, 0, 0, 0.15);
    border-radius: 50%;
}

#cookie:active {
    transform: scale(0.95);
    box-shadow: 0 3px 5px rgba(0, 0, 0, 0.1);
}

.stats-area {
    margin-top: 10px;
}

#cookie-count {
    font-size: 1.5em;
    font-weight: bold;
    color: #333;
}

#cps-display {
    font-size: 1.1em;
    color: #777;
}

.right-panel {
    padding-left: 40px;
    border-left: 1px solid #ccc;
}

.upgrades-area h2 {
    margin-top: 0;
    color: #555;
    margin-bottom: 15px;
}

.upgrade-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 15px;
    margin-bottom: 8px;
    border: 1px solid #ddd;
    border-radius: 6px;
    background-color: #f9f9f9;
    transition: background-color 0.2s ease-in-out, transform 0.1s ease-in-out;
    position: relative;
}

.upgrade-container:hover {
    background-color: #eee;
    transform: scale(1.01);
}

.upgrade-info {
    flex-grow: 1;
    margin-right: 15px;
}

.upgrade-name {
    font-weight: bold;
    color: #444;
    margin-bottom: 5px;
}

.upgrade-cost {
    font-size: 0.9em;
    color: #777;
}

.upgrade-cps {
    font-size: 0.9em;
    color: #555;
}

.buy-buttons button {
    margin-left: 8px;
    padding: 6px 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9em;
    background-color: #eee;
    transition: background-color 0.2s ease-in-out;
}

.buy-buttons button:hover {
    background-color: #ddd;
}

.buy-buttons button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background-color: #f2f2f2;
    border-color: #eee;
    color: #999;
}

.upgrade-container.disabled {
    opacity: 0.6;
}

.upgrade-container.disabled:hover {
    transform: none;
    background-color: #f9f9f9;
}

.upgrade-container.disabled .buy-buttons button {
    opacity: 0.6;
    cursor: not-allowed;
    background-color: #f2f2f2;
    border-color: #eee;
    color: #999;
}

#tooltip {
    position: absolute;
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 8px;
    border-radius: 4px;
    font-size: 0.9em;
    z-index: 10;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease-in-out, visibility 0s linear 0.3s;
}

.upgrade-container:hover #tooltip {
    opacity: 1;
    visibility: visible;
    transition: opacity 0.2s ease-in-out, visibility 0s linear 0s;
}