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

html,
body {
    margin: 0;
    padding: 0;
}

h1, h2, h3, h4 {
    font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

p {
    font-family:system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    font-size: 15px;
    line-height: 1.6;
    /* color: #333; */
}

.italic-font {
    font-style: italic;
}

.main-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding: 20px;
    /* background-color: bisque; */
    padding-bottom: 80px;
}

.inner-container {
    flex: 1;
    padding: 20px;
    /* background-color: aqua; */
    text-align: center;
}

.book-img img {
    margin-top: 20px;
    height: auto;
    width: 100px;
}

.inner-container2 {
    flex: 1;
    padding: 20px;
    /* background-color: grey; */
}
.abt-book {
    text-align: center;
    padding: 10px;
    background-color: #1a237e;
    color: white;
}

.abt-author {
    /* padding: 10px; */
    margin-top: 20px;
}

.abt-author h2 {
    text-align: center;
}

.abt-inner-container {
    display: flex;
    /* background-color: blue; */
    padding-top: 10px;
}

.author-img img {
    height: auto;
    width: 100px;
    border-radius: 50%;
}

.abt-author-txt {
    margin-left: 20px;
}

.footer-txt {
    text-align: center;
}

.policies {
    margin-bottom: 10px;
}

.policies a {
    text-decoration: none;
    color: #333;
    cursor: pointer;
    font-size: 13px;
}

.pay-btn {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 15px;
    background: #f8f8f8;
}

.pay-btn button {
    width: 100%;
    padding: 15px;
    /* height: 40px; */
    background-color: #007bff;
    color: aliceblue;
    font-size: 16px;
    border: none;
    border-radius: 20px;
    cursor: pointer;
}

/* testimonials */
.testimonial-container {
    width: 100%;
    max-width: 700px;
    overflow: hidden;
    margin: auto;
    position: relative;
}
.testimonial-container h2 {
    text-align: center;
}

.testimonial-tracker {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.testimonial {
    flex: 0 0 100%;
    padding: 20px;
    box-sizing: border-box;
    background-color: #fef6e4;
    color: #001858;
    border-radius: 20px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    text-align: center;
}

.testimonial-img img {
    height: auto;
    width: 100px;
    border-radius: 50%;
}

/* about the course style  */
.abt-course {
    text-align: center;
    padding: 10px;
}

/* vertical timeline */
.timeline {
    position: relative;
    margin-left: 40px;
    padding-left: 20px;
    border-left: 4px solid #157a8a;
}

.timeline-step {
    position: relative;
    margin-bottom: 40px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.timeline-step.visible {
    opacity: 1;
    transform: translateY(0);
}

.timeline-step::before {
    content: attr(data-step);
    position: absolute;
    left: -40px;
    top: 0;
    width: 30px;
    height: 30px;
    background-color: #157a8a;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.timeline-box {
    background-color: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    max-width: 600px;
}

.timeline-box h3 {
    margin-top: 0;
    color: #1a237e;
}

.timeline-box ul {
    padding-left: 20px;
    margin: 10px 0 0 0;
}

.timeline-box ul li {
    margin-bottom: 8px;
}

/* course format  */
.course-format {
    padding: 15px;
    background-color: #898989;
    color: #f8f8f8;
    font-family: 'Inter', sans-serif;

}
.course-format h2 {
    text-align: center;

}

/* reviews */

.slider-container {
  max-width: 800px;
  margin: 60px auto;
  padding: 20px;
}

.slider-title {
  /* font-size: 2rem; */
  margin-bottom: 20px;
  color: #1e90ff;
}

.slider {
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.slider-track {
  display: flex;
  transition: transform 0.5s ease-in-out;
}

.slide {
  min-width: 100%;
  height: auto;
  border-radius: 10px;
}
.slider-track img {
    width: 70px;
    height: auto;
}