body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
    color: #333;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    margin-top: 30px;
}

h1 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 10px;
}

p {
    text-align: center;
    margin-bottom: 30px;
    color: #7f8c8d;
}

.upload-form {
    background-color: #f9f9f9;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input[type="file"] {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.form-group input[type="number"] {
    width: 100px;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.form-group input[type="range"] {
    width: 200px;
    vertical-align: middle;
}

.btn {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    display: block;
    margin: 20px auto 0;
}

.btn:hover {
    background-color: #2980b9;
}

.preview-area {
    margin-top: 30px;
    padding: 20px;
    background-color: #f9f9f9;
    border-radius: 5px;
}

.preview-area h3 {
    margin-top: 0;
    color: #2c3e50;
}

.preview-container {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 15px;
}

.preview-item {
    width: 150px;
    text-align: center;
}

.preview-item img {
    max-width: 100%;
    max-height: 100px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.preview-item p {
    margin: 5px 0 0;
    font-size: 12px;
    color: #7f8c8d;
    word-break: break-all;
}

.download-section {
    margin-top: 30px;
    padding: 20px;
    background-color: #e8f4fc;
    border-radius: 5px;
}

.download-section h3 {
    margin-top: 0;
    color: #2c3e50;
}

.download-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 15px;
}

.download-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background-color: white;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.download-btn {
    background-color: #27ae60;
    color: white;
    text-decoration: none;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 14px;
}

.download-btn:hover {
    background-color: #219653;
}

@media (max-width: 600px) {
    .container {
        padding: 15px;
        margin-top: 10px;
    }
    
    .preview-item {
        width: 120px;
    }
}