body {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: #212529;
}

#header-section {
  background-color: #fff;
  padding: 16px 0;
}

#header-section .row {
  width: 100%;
}

#header-section .mainnav {
  list-style: none;
  margin: 0;
  padding: 0;
}

#header-section .mainnav li {
  display: inline-block;
  padding: 0 8px;
}

#header-section .mainnav li a {
  padding-left: 0;
  padding-right: 0;
}

#header-section .mainnav li a.active {
  border-bottom: 2px solid var(--cyan);
  border-radius: 0;
  color: var(--cyan);
  padding-left: 0;
  padding-right: 0;
}

/* Banner */
.banner {
  padding: 64px 0 64px;
}

/* Event info */
.event-info {
  margin-bottom: 32px;
}

.event-info .sub-heading {
  font-size: 14px;
  margin-bottom: 16px;
  text-align: center;
}

.event-info .sub-heading span {
  background-color: var(--gray);
  color: #fff;
  display: inline-block;
  font-size: 12px;
  padding: 6px 8px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

@media screen and (min-width: 768px) {
  .event-info .sub-heading {
    text-align: left;
  }

  .event-info .sub-heading span {
    text-align: center;
  }
}

.event-info h1 {
  font-weight: 600;
  font-size: 36px;
  margin-bottom: 36px;
  line-height: 1.2;
  text-align: center;
}

.action-wrap {
  text-align: center;
}

@media screen and (min-width: 768px) {
  .action-wrap {
    text-align: left;
  }
}

@media screen and (min-width: 768px) {
  .event-info h1 {
    font-size: 54px;
    text-align: left;
  }
}

.event-info ul {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}

.event-info ul li {
  padding: 4px 0;
}

.event-info ul li i {
  color: #999;
  margin-right: 8px;
}

.event-info .date {
  position: relative;
  display: inline-block;
}

.event-info .date:after {
  background-color: #9fdce6;
  content: "";
  display: block;
  position: absolute;
  left: 0;
  bottom: 3px;
  height: 3px;
  width: 100%;
}

.event-info .btn {
  background-color: var(--cyan);
  border: 0;
  color: #fff;
  font-size: 18px;
  display: inline-block;
  padding: 16px 32px;
}

.event-info .btn:hover,
.event-info .btn:focus,
.event-info .btn:active {
  background-color: #138598;
}

.speaker-wrap {
  background-color: #fff;
  border-radius: 5px;
  box-shadow: 0 0 10px rgba(0,0,0,0.07);
  margin-bottom: 32px;
  padding: 0 0 24px;
}

.speaker-wrap img {
  border-radius: 5px 5px 0 0;
  margin-bottom: 24px;
  width: 100%;
}

.speaker-wrap h3 {
  font-size: 24px;
  margin-bottom: 16px;
}

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

.speaker-wrap .speaker-info {
  min-height: 100px;
}


/* Section */
.section {
  padding: 64px 0;
}

.section-gray {
  background-color: #f9f9f9;
}

.section-heading {
  margin-bottom: 64px;
  text-align: center;
}

.section-heading h2 {
  font-size: 32px;
  font-weight: 600;
  margin: 0;
}

@media screen and (min-width: 768px) {
  .section-heading h2 {
    font-size: 36px;
  }
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.steps li {
  padding: 16px 0 16px 48px;
  position: relative;
}

.steps li span {
  background-color: var(--indigo);
  color: #fff;
  border-radius: 50%;
  position: absolute;
  display: inline-block;
  left: 0;
  top: 16px;
  height: 32px;
  line-height: 32px;
  text-align: center;
  width: 32px;
}

.steps li .btn {
  padding: 4px 8px;
}


/* Book list */
.book-list {
  margin-top: 32px;
  text-align: center;
}

.book-list h3 {
  margin-bottom: 32px;
}

.book-list ul {
  display: block;
  list-style: none;
  margin: 0 -8px;
  padding: 0;
  overflow: hidden;
}

.book-list ul li {
  float: left;
  padding: 8px;
  width: 50%;
}

@media screen and (min-width: 768px) {
  .book-list ul li {
    width: 25%;
  }  
}

@media screen and (min-width: 992px) {
  .book-list ul li {
    width: 20%;
  }  
}


.book-list ul li img {
  max-width: 100%;
}