:root {
    --primary-color: #8b5cf6; /* بنفش اصلی */
    --secondary-color: #6a0dad; /* بنفش تیره */
    --background-color: #f8f5ff; /* پس‌زمینه روشن */
    --border-color: #d8c6ff; /* حاشیه بنفش */
    --text-color: #333; /* متن اصلی */
    --success-color: #10b981; /* سبز */
    --danger-color: #ef4444; /* قرمز */
    --warning-color: #f59e0b; /* زرد */
    --shadow-color: rgba(139, 92, 246, 0.15);
    --transition: all 0.3s ease;
}

.evaluation-container {
    max-width: 800px;
    margin: 40px auto;
    padding: 24px;
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 20px var(--shadow-color);
    font-family: "Vazirmatn", sans-serif;
    direction: rtl;
    transition: var(--transition);
}

.evaluation-heading {
    font-size: 28px;
    font-weight: 700;
    color: var(--secondary-color);
    text-align: center;
    margin-bottom: 32px;
    position: relative;
}

.evaluation-heading::after {
    content: '';
    width: 60px;
    height: 4px;
    background-color: var(--primary-color);
    position: absolute;
    bottom: -8px;
    right: 50%;
    transform: translateX(50%);
    border-radius: 2px;
}

.evaluation-subheading {
    font-size: 20px;
    font-weight: 600;
    color: var(--secondary-color);
    margin: 24px 0 16px;
    border-right: 4px solid var(--primary-color);
    padding-right: 12px;
}

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

.form-group label {
    display: block;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 8px;
}

.form-group input[type="text"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    font-family: "Vazirmatn", sans-serif;
    color: var(--text-color);
    background-color: #f9f9ff;
    transition: var(--transition);
}

.form-group input[type="text"]:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
    background-color: #fff;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group input[type="checkbox"],
.form-group input[type="radio"] {
    width: 18px;
    height: 18px;
    margin-left: 12px;
    accent-color: var(--primary-color);
    vertical-align: middle;
    cursor: pointer;
}

.checkbox-group, .radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    padding: 12px;
    background-color: var(--background-color);
    border-radius: 8px;
}

.checkbox-group label, .radio-group label {
    display: flex;
    align-items: center;
    font-size: 15px;
    color: var(--text-color);
    cursor: pointer;
}

.captcha-group {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.captcha-group label {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-color);
}

.captcha-group input[type="text"] {
    width: 100px;
}

.submit-btn {
    display: block;
    width: 200px;
    margin: 24px auto;
    padding: 12px;
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    font-family: "Vazirmatn", sans-serif;
    cursor: pointer;
    transition: var(--transition);
}

.submit-btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.messages {
    margin-bottom: 24px;
    text-align: center;
}

.message-success {
    color: var(--success-color);
    font-size: 16px;
    font-weight: 500;
}

.message-error {
    color: var(--danger-color);
    font-size: 16px;
    font-weight: 500;
}

.form-error {
    color: var(--danger-color);
    font-size: 14px;
    margin-top: 4px;
}

/* پاسخ‌گویی برای گوشی */
@media (max-width: 768px) {
    .evaluation-container {
        margin: 20px;
        padding: 16px;
    }

    .evaluation-heading {
        font-size: 24px;
    }

    .evaluation-subheading {
        font-size: 18px;
    }

    .form-group input[type="text"],
    .form-group textarea,
    .form-group select {
        font-size: 15px;
        padding: 10px;
    }

    .checkbox-group, .radio-group {
        gap: 10px;
        padding: 10px;
    }

    .submit-btn {
        width: 100%;
        padding: 10px;
    }

    .captcha-group {
        flex-direction: column;
        align-items: flex-start;
    }

    .captcha-group input[type="text"] {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .evaluation-container {
        margin: 10px;
        padding: 12px;
    }

    .evaluation-heading {
        font-size: 20px;
    }

    .evaluation-subheading {
        font-size: 16px;
    }

    .form-group label {
        font-size: 14px;
    }

    .form-group input[type="text"],
    .form-group textarea,
    .form-group select {
        font-size: 14px;
        padding: 8px;
    }

    .submit-btn {
        font-size: 14px;
    }
}