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

body {
    font-family: 'Vazir', 'Tahoma', 'Arial', sans-serif;
    direction: rtl;
    text-align: right;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    background: #ffffff;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: 40px;
    max-width: 500px;
    width: 100%;
    animation: fadeIn 0.5s ease-in;
}

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

.header {
    text-align: center;
    margin-bottom: 30px;
}

.header h1 {
    color: #333;
    font-size: 28px;
    margin-bottom: 10px;
    font-weight: 700;
}

.header p {
    color: #666;
    font-size: 14px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 16px;
    font-family: 'Vazir', 'Tahoma', sans-serif;
    transition: all 0.3s ease;
    direction: rtl;
    text-align: right;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group input::placeholder {
    color: #999;
}

.btn-submit {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #ffffff;
    border: none;
    border-radius: 10px;
    font-size: 18px;
    font-weight: 600;
    font-family: 'Vazir', 'Tahoma', sans-serif;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-submit:active {
    transform: translateY(0);
}

.error-message {
    background: #fee;
    color: #c33;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-right: 4px solid #c33;
    font-size: 14px;
}

.success-message {
    background: #efe;
    color: #3c3;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-right: 4px solid #3c3;
    font-size: 14px;
}

.info-box {
    background: #f5f5f5;
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 14px;
    color: #666;
    line-height: 1.8;
}

.info-box strong {
    color: #333;
}

.loading {
    text-align: center;
    padding: 20px;
}

.loading::after {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 10px;
}

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

.payment-info {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    border-right: 4px solid #667eea;
}

.payment-info h3 {
    color: #333;
    margin-bottom: 15px;
    font-size: 18px;
}

.payment-info p {
    color: #666;
    margin-bottom: 10px;
    font-size: 14px;
}

.payment-info .amount {
    font-size: 24px;
    font-weight: 700;
    color: #667eea;
    margin-top: 10px;
}

@media (max-width: 600px) {
    .container {
        padding: 25px;
    }
    
    .header h1 {
        font-size: 24px;
    }
}

/* فونت فارسی */
@font-face {
    font-family: 'Vazir';
    src: url('https://cdn.jsdelivr.net/gh/rastikerdar/vazir-font@v30.1.0/dist/Vazir.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
}