body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    background-color: #f4f4f9;
    color: #333;
    margin: 0;
    padding-top: 20px;
}

#game-container {
    text-align: center;
    background-color: #fff;
    padding: 20px 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    width: 90%;
    max-width: 500px;
}

h1 {
    color: #4a4a4a;
}

#score-container {
    margin: 15px 0;
    font-size: 1.2em;
}

#clicker-container {
    position: relative;
    margin: 20px 0;
    display: inline-block;
}

#clicker-img {
    width: 200px;
    height: 200px;
    cursor: pointer;
    transition: transform 0.1s ease-in-out;
    -webkit-user-drag: none;
    user-select: none;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
}

#clicker-img:active, #clicker-img.clicked {
    transform: scale(0.95);
}

.click-indicator {
    position: absolute;
    font-size: 24px;
    font-weight: bold;
    color: #ffc107;
    text-shadow: 1px 1px 0 #000, -1px -1px 0 #000, 1px -1px 0 #000, -1px 1px 0 #000;
    pointer-events: none;
    animation: floatUp 1s ease-out forwards;
    user-select: none;
    -moz-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
}

@keyframes floatUp {
    from {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
    to {
        opacity: 0;
        transform: translateY(-60px) scale(1.5);
    }
}

#bonus-container {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 2px solid #eee;
    text-align: center;
}

#bonus-container p {
    margin: 5px 0;
    color: #555;
}

#prestige-container {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 2px solid #eee;
    text-align: center;
}

#prestige-container p {
    margin: 5px 0;
    color: #555;
}

#prestige-container button {
    margin-top: 10px;
    padding: 10px 20px;
    font-size: 1em;
    font-weight: bold;
    color: white;
    background-color: #ff9800;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

#prestige-container button:hover:not(:disabled) {
    background-color: #f57c00;
    transform: scale(1.05);
}

#prestige-container button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
    transform: none;
}

#upgrades-container {
    margin-top: 20px;
}

.upgrade {
    border: 1px solid #ddd;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
}

.upgrade-info p {
    margin: 2px 0;
    color: #666;
    font-size: 0.9em;
}

.upgrade button {
    padding: 8px 15px;
    cursor: pointer;
    border: none;
    background-color: #28a745;
    color: white;
    border-radius: 5px;
    transition: background-color 0.2s, transform 0.1s;
    font-weight: bold;
}

.upgrade button:hover:not(:disabled) {
    background-color: #218838;
    transform: scale(1.05);
}

.upgrade button:disabled {
    cursor: not-allowed;
    background-color: #ccc;
    color: #888;
    transform: none;
}