* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Vazir', 'Tahoma', sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background-color: #fff;
    padding: 30px;
    text-align: center;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 30px;
}

.logo {
    width: 120px;
    height: auto;
    margin-bottom: 20px;
}

h1 {
    color: #2c3e50;
    font-size: 28px;
    margin-bottom: 10px;
}

h2 {
    color: #7f8c8d;
    font-size: 20px;
    font-weight: normal;
}

.search-box {
    background-color: #fff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.search-box h3 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 22px;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: #555;
    font-weight: bold;
}

input[type="text"] {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s;
}

input[type="text"]:focus {
    outline: none;
    border-color: #3498db;
}

.btn-submit {
    background-color: #27ae60;
    color: white;
    padding: 12px 40px;
    border: none;
    border-radius: 5px;
    font-size: 18px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-submit:hover {
    background-color: #229954;
}

.info-box {
    background-color: #ecf0f1;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.info-box h4 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.info-box ul {
    list-style: none;
    padding-right: 20px;
}

.info-box li {
    margin-bottom: 8px;
    position: relative;
    padding-right: 20px;
}

.info-box li:before {
    content: "✓";
    position: absolute;
    right: 0;
    color: #27ae60;
}

.result-box {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.result-box.success {
    border-right: 5px solid #27ae60;
}

.result-box.error {
    border-right: 5px solid #e74c3c;
}

.customer-info {
    width: 100%;
    margin: 20px 0;
    border-collapse: collapse;
}

.customer-info td {
    padding: 10px;
    border-bottom: 1px solid #eee;
}

.customer-info td:first-child {
    width: 150px;
    color: #7f8c8d;
}

.download-section {
    margin-top: 30px;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: 5px;
    text-align: center;
}

.btn-download {
    display: inline-block;
    background-color: #3498db;
    color: white;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 10px;
    transition: background-color 0.3s;
}

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

.file-name {
    margin-top: 10px;
    color: #7f8c8d;
    font-size: 14px;
}

.back-link {
    text-align: center;
    margin-top: 20px;
}

.btn-back {
    display: inline-block;
    background-color: #95a5a6;
    color: white;
    padding: 10px 25px;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.btn-back:hover {
    background-color: #7f8c8d;
}

footer {
    text-align: center;
    padding: 20px;
    color: #7f8c8d;
    font-size: 14px;
}

@media (max-width: 600px) {
    .container {
        padding: 10px;
    }
    
    .search-box, .result-box {
        padding: 20px;
    }
    
    h1 {
        font-size: 24px;
    }
    
    h2 {
        font-size: 18px;
    }
}