body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f0f0f0;
}

.container {
    width: 80%;
    margin: 50px auto;
    padding: 30px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    color: #333;
    font-size: 26px;
    margin-bottom: 30px;
    text-align: center;
}

form {
    margin-bottom: 20px;
    text-align: center;
}

label {
    display: block;
    margin-bottom: 10px;
    font-size: 18px;
}

input[type="file"] {
    margin-bottom: 20px;
    text-align: center;
}

input[type="url"] {
    width: 95%;
    max-width: 400px;
    padding: 5px;
    font-size: 14px;
    text-align: center;
}

.button-container {
    display: flex;
    justify-content: center;
}

.button-style {
    padding: 12px 30px;
    margin: 0 10px;
    font-size: 18px;
    background-color: #4CAF50;
    color: white;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.button-style:hover {
    background-color: #45a049;
}

.loading {
    display: none;
    font-size: 18px;
    margin-top: 20px;
    text-align: center;
}

.sk-chase {
    width: 40px;
    height: 40px;
    position: relative;
    animation: sk-chase 2.5s infinite linear both;
    margin: 0 auto;
}

.sk-chase-dot {
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    animation: sk-chase-dot 2.0s infinite ease-in-out both;
}

.sk-chase-dot:before {
    content: '';
    display: block;
    width: 25%;
    height: 25%;
    background-color: #333;
    border-radius: 100%;
    animation: sk-chase-dot-before 2.0s infinite ease-in-out both;
}

.sk-chase-dot:nth-child(1) { animation-delay: -1.1s; }
.sk-chase-dot:nth-child(2) { animation-delay: -1.0s; }
.sk-chase-dot:nth-child(3) { animation-delay: -0.9s; }
.sk-chase-dot:nth-child(4) { animation-delay: -0.8s; }
.sk-chase-dot:nth-child(5) { animation-delay: -0.7s; }
.sk-chase-dot:nth-child(6) { animation-delay: -0.6s; }

@keyframes sk-chase {
    100% { transform: rotate(360deg); }
}

@keyframes sk-chase-dot {
    80%, 100% { transform: rotate(360deg); }
}

@keyframes sk-chase-dot-before {
    50% {
        transform: scale(0.4);
    } 100%, 0% {
        transform: scale(1.0);
    }
}