body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #2e2e2e;
    color: white;
    margin: 0;
    padding: 20px;
}

h1 {
    margin-bottom: 30px;
}

.stats-container {
    background-color: #3a3a3a;
    padding: 20px;
    border-radius: 10px;
    max-width: 500px;
    margin: 0 auto 30px;
}

.stat-row {
    margin: 10px 0;
    font-size: 18px;
}

button {
    padding: 12px 20px;
    margin: 5px;
    border: none;
    cursor: pointer;
    font-size: 16px;
    border-radius: 5px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.earn {
    background-color: #4CAF50;
    color: white;
}

.upgrade {
    background-color: #2196F3;
    color: white;
}

.prestige {
    background-color: #FF9800;
    color: white;
}

.reset {
    background-color: #F44336;
    color: white;
}

button:hover:not(:disabled) {
    opacity: 0.8;
    transform: scale(1.05);
}

button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

button:active:not(:disabled) {
    transform: scale(0.95);
}

.progress-bar {
    width: 100%;
    height: 20px;
    background-color: #555;
    border-radius: 10px;
    overflow: hidden;
    margin: 10px 0;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #4CAF50, #8BC34A);
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 12px;
    color: #ccc;
    margin-top: 5px;
}

#version {
    margin-top: 20px;
    font-size: 14px;
    color: #ccc;
}

.floating-number {
    position: fixed;
    font-size: 24px;
    font-weight: bold;
    color: #4CAF50;
    pointer-events: none;
    animation: float-up 1s ease-out forwards;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

@keyframes float-up {
    0% {
        opacity: 1;
        transform: translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateY(-100px);
    }
}

.language-container {
    margin-top: 20px;
}

select {
    padding: 8px;
    font-size: 14px;
    border-radius: 5px;
    background-color: #4a4a4a;
    color: white;
    border: 1px solid #666;
}

#game-logo {
    position: fixed;
    bottom: 12px;
    right: 12px;
    width: 64px;
    height: auto;
    opacity: 0.85;
    pointer-events: none;
    filter: drop-shadow(0 0 6px rgba(255, 0, 0, 0.6))
            drop-shadow(0 0 6px rgba(0, 255, 0, 0.6))
            drop-shadow(0 0 6px rgba(0, 0, 255, 0.6));
    transition: transform 0.2s ease, opacity 0.2s ease;
}

#game-logo:hover {
    transform: scale(1.05);
    opacity: 1;
}

.offline-earnings {
    background-color: #4CAF50;
    padding: 15px;
    border-radius: 10px;
    margin: 20px auto;
    max-width: 400px;
    animation: slideDown 0.5s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}