html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #1a1a1a;
    font-family: Arial, sans-serif;
    color: white;
}

.loader-container {
    width: 150px;
    height: 150px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.loader-circle {
    width: 100%;
    height: 100%;
    border: 12px solid #f3f3f3;
    border-top: 12px solid #3498db;
    border-radius: 50%;
    animation: spin 1.5s linear infinite;
    box-sizing: border-box;
}

.loader-percentage {
    position: absolute;
    font-size: 24px;
    font-weight: bold;
    color: #ffffff;
    display: flex;
    justify-content: center;
    align-items: center;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}