/* Variables */
:root {
  --ffMontserrat: "Montserrat", sans-serif;
  --colorBlurGray: #22506c;
  --colorCyanBlue: #32c4f3;
  --colorTealBlue: #134768;
  --colorWhite: #fff;
  --colorBlack: #000;
}

/* Default Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
a {
  transition: 0.3s all ease-in-out;
  text-decoration: none;
}
button {
  background: transparent;
  cursor: pointer;
  transition: 0.3s all ease-in-out;
  border: none;
  padding: 0;
  font-family: var(--ffMontserrat);
}
ul,
ol,
li {
  list-style: none;
}

/* Global Styles */
body {
  font-family: var(--ffMontserrat);
}
.container-center {
  max-width: 1418px;
  padding: 0 20px;
  margin: 0 auto;
}

/* 
=========================
        Header
=========================
 */
.header {
  padding: 27px 0;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: var(--colorWhite);
}
.header .logo {
  display: flex;
  justify-content: center;
  align-items: center;
  max-width: 320px;
}
.header .logo img {
  width: 100%;
}

/* 
======================
    Conference Sec
======================
 */
.conference-sec {
  width: 100%;
  background: var(--colorTealBlue) url("../images/main-area-bg.png")
    center/cover no-repeat;
}
.conference-sec .top-image-text {
  display: none;
}
.conference-sec .top-image-text img {
  width: 100%;
}
.conference-sec .top-image-text .save-date-text {
  margin-bottom: 20px;
  margin-left: -20px;
}
.conference-sec .top-image-text .world-in-text {
  margin-bottom: 20px;
}
.conference-sec .conf-wrapper {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 100px 0 346px;
}
.conf-wrapper .spacing-dummy {
  width: 100%;
  height: 480px;
}
.conference-sec .conf-agenda {
  text-align: center;
}

.conf-agenda .conf-year {
  font-size: 2.75rem;
  font-weight: 600;
  color: var(--colorBlurGray);
  letter-spacing: 2%;
  margin-bottom: 20px;
}

.conf-agenda .conf-goal {
  font-size: 2.75rem;
  font-weight: 600;
  color: var(--colorWhite);
  margin-bottom: 20px;
  line-height: 62px;
}
.conference-sec .conf-details {
  position: relative;
  width: 100%;
  max-width: 600px;
  margin: 20px auto 0;
  padding: 20px 0;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  gap: 10px;
}
.conference-sec .conf-details::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 5px;
  background-color: var(--colorCyanBlue);
  filter: blur(1.5px);
  border-radius: 100%;
}
.conference-sec .conf-details::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 5px;
  background-color: var(--colorCyanBlue);
  filter: blur(1.5px);
  border-radius: 100%;
}

.conference-sec .conf-details p {
  text-align: center;
  color: var(--colorCyanBlue);
}
.conf-details .conf-date {
  font-size: 2.375rem;
  font-weight: 800;
  letter-spacing: 5%;
}
.conf-details .conf-time {
  font-size: 2.375rem;
  font-weight: 800;
  letter-spacing: 5%;
}
.conf-details .conf-location {
  font-size: 2rem;
  font-weight: 500;
}
.conf-details .rsvp-btn {
  background: var(--colorCyanBlue);
  color: var(--colorWhite);
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
}
.conf-details .rsvp-btn:hover {
  opacity: 0.8;
}
.conference-sec .conf-accordions {
  margin-top: 60px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.conf-accordions .conf-accordion-item {
  padding: 14px 46px;
  border-radius: 10px;
  display: flex;
  align-items: start;
  gap: 54px;
  border: 1px solid var(--colorWhite);
}
.conf-accordion-item .cai-time {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--colorCyanBlue);
  flex-shrink: 0;
}
.conf-accordion-item .cai-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--colorWhite);
  cursor: pointer;
}
.conf-accordion-item .cai-content-arrow {
  display: flex;
  align-items: start;
  justify-content: space-between;
  flex-grow: 1;
  gap: 54px;
}
.conf-accordion-item .cai-multi-speakers {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.conf-accordion-item .cai-subtitle {
  font-size: 1.125rem;
  font-weight: 500;
  line-height: 28px;
  color: var(--colorCyanBlue);
  margin-top: 5px;
}
.conf-accordion-item .cai-description {
  margin-top: 15px;
  display: none;
}
.conf-accordion-item.active .cai-description {
  display: block;
}
.conf-accordion-item .cai-description {
  margin-top: 15px;
}
.conf-accordion-item .cai-description p {
  font-size: 1rem;
  line-height: 23px;
  font-style: italic;
  color: var(--colorWhite);
}
.conf-accordion-item .cai-description span {
  display: block;
  font-size: 1rem;
  line-height: 23px;
  font-style: italic;
  font-weight: 700;
  color: var(--colorWhite);
  margin-bottom: 16px;
}

.conf-accordion-item .cai-arrow {
  transition: transform 0.3s ease-in-out;
  transform: rotate(0deg);
  cursor: pointer;
}
.conf-accordion-item.active .cai-arrow {
  transform: rotate(180deg);
}

/* 
=========================
    Speakers Section
=========================
 */
.speakers-sec {
  padding: 90px 0 90px;
  background-color: var(--colorTealBlue);
}
.speakers-sec .sec-title {
  font-size: 2.75rem;
  font-weight: 600;
  letter-spacing: 5%;
  text-align: center;
  color: var(--colorWhite);
}

.speakers-sec .speakers-grid {
  margin-top: 80px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
}
.speakers-grid .speaker-card {
  background-color: var(--colorWhite);
  padding: 17px;
  border-radius: 12px;
  display: flex;
  justify-content: start;
  align-items: center;
  flex-direction: column;
}
.speakers-grid .speaker-card .speaker-thumb {
  width: 100%;
  height: 305px;
  border-radius: 6px;
  overflow: hidden;
}
.speakers-grid .speaker-card .speaker-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease-in-out;
}
.speakers-grid .speaker-card:hover .speaker-thumb img {
  transform: scale(1.07);
}
.speakers-grid .speaker-card .speaker-card-content {
  display: flex;
  justify-content: space-evenly;
  flex-direction: column;
  flex-grow: 1;
}
.speakers-grid .speaker-card h4 {
  font-size: 1.625rem;
  line-height: 34px;
  font-weight: 700;
  color: var(--colorBlurGray);
  text-align: center;
  margin: 10px 0;
}
.speakers-grid .speaker-card .btn {
  font-size: 1.25rem;
  line-height: 34px;
  font-weight: 500;
  text-transform: capitalize;
  color: var(--colorBlack);
  text-align: center;
}
.speakers-grid .speaker-card.active h4 {
  color: var(--colorCyanBlue);
}
.speakers-grid .speaker-card.active .btn {
  color: var(--colorCyanBlue);
}
.speakers-grid .speaker-cards-content {
  grid-column: span 4;
  margin-top: 40px;
}
.speakers-grid .speaker-card.active .speaker-cards-content {
  grid-column: span 4;
  margin-top: 40px;
  display: none;
}
.speakers-grid .speaker-cards-content .speaker-title {
  font-size: 1.625rem;
  font-weight: 700;
  line-height: 28px;
  color: var(--colorWhite);
  transition: 0.3s all ease-in-out;
}
.speakers-grid .speaker-cards-content .speaker-subtitle {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--colorCyanBlue);
  margin-top: 5px;
}
.speakers-grid .speaker-cards-content .speaker-desc-wrapper {
  margin-top: 27px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.speakers-grid .speaker-cards-content .speaker-desc {
  font-size: 1rem;
  line-height: 28px;
  color: var(--colorWhite);
}
.speakers-grid .speaker-cards-content .scc-item {
  display: none;
}
.speakers-grid .speaker-cards-content .scc-item.active {
  display: block;
}

/* 
========================
    Footer
========================
 */
.footer {
  background-color: var(--colorWhite);
  padding: 32px 0 0;
}
.footer .disclaimer-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.footer .disclaimer-content p {
  font-size: 1rem;
  line-height: 24px;
  color: var(--colorBlurGray);
  font-weight: 500;
}
.footer .disclosure {
  padding: 20px 0;
  background-color: var(--colorTealBlue);
  margin-top: 32px;
}
.footer .disclosure p {
  font-size: 1rem;
  line-height: 24px;
  color: var(--colorWhite);
}
@media (min-width: 1900px) {
  .conf-wrapper .spacing-dummy {
    height: 600px;
  }
}

@media (max-width: 450px) {
  .conf-wrapper .spacing-dummy {
    height: 250px;
  }
}
@media (min-width: 451px) and (max-width: 600px) {
  .conf-wrapper .spacing-dummy {
    height: 350px;
  }
}
@media (min-width: 601px) and (max-width: 767px) {
  .conf-wrapper .spacing-dummy {
    height: 400px;
  }
}
@media (max-width: 767px) {
  .header .logo {
    max-width: 200px;
  }
  .header {
    padding: 20px 0;
  }
  .conference-sec {
    width: 100%;
    background: var(--colorTealBlue) url("../images/bg-mobile.png");
    background-repeat: no-repeat;
    background-size: cover;
  }
  .conference-sec .top-image-text {
    display: none;
  }
  .conference-sec .conf-wrapper {
    padding: 70px 0 70px;
  }
  .conf-accordions .conf-accordion-item {
    padding: 14px 20px;
    gap: 12px;
    flex-direction: column;
  }
  .conf-accordion-item .cai-content-arrow {
    gap: 16px;
  }
  .conf-agenda .conf-year {
    font-size: 1.5rem;
    letter-spacing: 1%;
    margin-bottom: 10px;
  }
  .conf-agenda .conf-goal {
    font-size: 1.5rem;
    line-height: 50px;
  }
  .conf-details .conf-date {
    font-size: 1.5rem;
    letter-spacing: 1%;
  }
  .conf-details .conf-time {
    font-size: 1.5rem;
    letter-spacing: 1%;
  }
  .conf-details .conf-location {
    font-size: 1.25rem;
  }
  .conf-accordion-item .cai-time {
    font-size: 1.125rem;
  }
  .conf-accordion-item .cai-title {
    font-size: 1rem;
  }
  .conf-accordion-item .cai-subtitle {
    font-size: 1rem;
    line-height: 25px;
  }
  .conf-accordion-item .cai-description p {
    font-size: 0.875rem;
    line-height: 20px;
  }
  .speakers-sec {
    padding: 70px 0 70px;
  }
  .speakers-sec .sec-title {
    font-size: 2.25rem;
    letter-spacing: 1%;
  }
  .speakers-sec .speakers-grid {
    margin-top: 40px;
    grid-template-columns: repeat(1, 1fr);
    gap: 20px;
  }
  .speakers-grid .speaker-cards-content .speaker-title {
    font-size: 1.5rem;
  }
  .speakers-grid .speaker-cards-content .speaker-subtitle {
    font-size: 1.125rem;
    line-height: 26px;
  }
  .speakers-grid .speaker-card h4 {
    font-size: 1.25rem;
  }
  .speakers-grid .speaker-card .btn {
    font-size: 1.125rem;
  }
  .speakers-grid .speaker-cards-content {
    grid-column: span 1;
    margin-top: 20px;
  }
}

@media (min-width: 768px) and (max-width: 1024px) {
  .speakers-sec .speakers-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }
  .speakers-grid .speaker-cards-content {
    grid-column: span 2;
    margin-top: 30px;
  }
  .conference-sec .conf-wrapper {
    padding: 100px 0 200px;
  }
}

@media (min-width: 1025px) and (max-width: 1280px) {
  .speakers-sec .speakers-grid {
    gap: 30px;
  }
  .speakers-grid .speaker-card h4 {
    font-size: 1.25rem;
  }
  .speakers-grid .speaker-card .btn {
    font-size: 1.125rem;
  }
}