body {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #333;
  background: #fff;
}

.container {
  width: 94%;
  max-width: 1350px;
}

a {
  color: #337ab7;
}

a:hover,
a:focus {
  color: #23527c;
}

h1, h2, h3 {
  font-family: inherit;
}

p {
  margin: 0 0 10px;
}

hr {
  margin-top: 16px;
  margin-bottom: 16px;
  border: 0;
  border-top: 1px solid #eee;
}

/* Custom Header Styling */
.back {
  background-image: url('Background_header.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  height: 40vh; /* Header height reduced by 1/3 */
  display: flex;
  justify-content: center;
  align-items: center;
}

.jumbotron .container {
  background-color: rgba(255, 255, 255, 0.85); /* Light background */
  color: #000000; /* Black text */
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  max-width: 80%;
  width: 100%;
}

/* Force all text inside the box to be black */
.jumbotron .container h1,
.jumbotron .container h2,
.jumbotron .container h3,
.jumbotron .container a {
  color: #000000;
}

.jumbotron h1 {
  font-size: 2.5em; /* Slightly adjusted to fit smaller header height */
  margin-bottom: 15px;
}

.jumbotron h2 {
  font-size: 1.8em;
  margin-bottom: 10px;
}

.jumbotron h3 {
  font-size: 1.3em;
  margin-bottom: 8px;
}

/* Top navigation: classic Bootstrap-pills look */
.top-nav {
  padding: 14px 0 10px;
  margin-bottom: 12px;
}

.top-nav .nav-pills > li > a {
  padding: 7px 13px;
  border-radius: 4px;
  color: #337ab7;
  font-weight: 400;
  font-size: 16px
}

.top-nav .nav-pills > li.active > a,
.top-nav .nav-pills > li.active > a:hover,
.top-nav .nav-pills > li.active > a:focus {
  color: #fff;
  background-color: #337ab7;
}

.top-nav .nav-pills > li > a:hover,
.top-nav .nav-pills > li > a:focus {
  background-color: #eee;
}

.top-nav .dropdown-menu {
  font-size: 16px;
}

/* Announcements: match the old page's simple text + horizontal rule feel */
.announcement {
  padding: 0;
  margin: 0 0 12px;
  border: 0;
  border-radius: 0;
  background: transparent !important;
  color: #333 !important;
  font-size: 16px;
}

.announcement:after {
  content: "";
  display: block;
  margin-top: 14px;
  border-top: 1px solid #eee;
}

.announcement a {
  font-weight: 400;
  color: #337ab7 !important;
}

/* Sidebar */
#sidebar {
  padding-top: 28px;
}

.sidebar-nav {
  position: sticky;
  top: 15px;
}

.sidebar-nav > li > a {
  color: #337ab7;
  padding: 4px 10px;
  font-size: 16px;
}

.sidebar-nav > li > a:hover,
.sidebar-nav > li > a:focus {
  background: #eee;
  color: #23527c;
}

.sidebar-nav > li.active > a,
.sidebar-nav > li.active > a:hover,
.sidebar-nav > li.active > a:focus {
  color: #fff;
  background: #337ab7;
  border-radius: 4px;
}

/* Main content */
#main-content {
  padding-bottom: 60px;
  font-size: 17px;
  line-height: 1.65;
}

section {
  padding-top: 24px;
  scroll-margin-top: 18px;
}

section h1,
section h2 {
  margin-top: 0;
  margin-bottom: 10px;
  font-weight: 500;
  line-height: 1.1;
  color: #333;
}

section h1 {
  font-size: 36px;
}

section h2 {
  font-size: 30px;
}

section h3 {
  font-size: 20px;
}

section hr {
  border-top: 1px solid #eee;
  margin: 14px 0 18px;
}

/* About image */
.about-img-wrap {
  margin: 18px 0 20px;
  text-align: center;
}

.about-img {
  display: inline-block;
  max-width: 100%;
  height: auto;
  border-radius: 0;
  box-shadow: none;
}

/* People grid */
.person-row {
  margin-top: 4px;
}

.person-card {
  text-align: center;
  min-height: 240px;
  margin-bottom: 32px;
  padding: 0 8px;
}

.person-photo-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 9px;
}

.person-initials,
.person-photo {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  border: 1px solid #ddd;
}

.person-initials {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f5f5f5;
  color: #555;
  font-size: 22px;
  font-weight: 500;
}

.person-photo {
  object-fit: cover;
}

.person-name {
  margin-bottom: 2px;
  font-size: 16px;
  line-height: 1.3;
  font-weight: 600;
}

.person-name a {
  color: #337ab7;
}

.person-role {
  margin-bottom: 0;
  font-size: 13px;
  line-height: 1.35;
  color: #555;
}

/* Sponsors */
.sponsor-level {
  margin: 0 0 14px;
  font-size: 22px;
  font-weight: 500;
  color: #333;
}

.sponsor-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 26px;
  margin-bottom: 18px;
}

.sponsor-logo {
  max-height: 70px;
  max-width: 210px;
  object-fit: contain;
}

/* Mobile */
@media (max-width: 767px) {
  .back {
    padding: 28px 0 24px;
  }

  .back h1 {
    font-size: 28px;
  }

  .back h2 {
    font-size: 18px;
  }

  .back h3 {
    font-size: 14px;
  }

  .top-nav {
    overflow-x: auto;
    white-space: nowrap;
  }

  .top-nav .nav-pills > li {
    float: none;
    display: inline-block;
  }

  section h1 {
    font-size: 30px;
  }

  section h2 {
    font-size: 26px;
  }

  .person-card {
    min-height: 132px;
  }

  .person-initials,
  .person-photo {
    width: 66px;
    height: 66px;
    font-size: 18px;
  }
}

/* ========================================
   WORKSHOP SCHEDULE
======================================== */

.schedule-table {
  margin-top: 20px;
  background-color: #ffffff;
  border-collapse: separate;
  border-spacing: 0;
}

.schedule-table > thead > tr > th {
  padding: 13px 15px;
  vertical-align: middle;
  color: #2f4f68;
  background-color: #edf3f7;
  border-color: #d7e1e8;
  font-weight: 600;
}

.schedule-table > thead > tr:first-child > th {
  font-size: 17px;
  letter-spacing: 0.2px;
}

.schedule-table > tbody > tr > td {
  padding: 14px 15px;
  vertical-align: middle;
  border-color: #dfe6eb;
  line-height: 1.5;
}

.schedule-time-heading {
  width: 85px;
}

.schedule-time {
  width: 85px;
  white-space: nowrap;
  text-align: center;
  color: #37546b;
  font-weight: 600;
}

.schedule-event {
  min-width: 260px;
}

.session-icon {
  display: inline-block;
  width: 20px;
  margin-right: 7px;
  text-align: center;
  color: #52738c;
}

.session-duration {
  color: #6f7d87;
  white-space: nowrap;
}

/* Subtle session colors */

.schedule-opening {
  background-color: #f6f9fb;
}

.schedule-talk {
  background-color: #f1f6f9;
}

.schedule-break {
  background-color: #faf8f1;
}

.schedule-discussion {
  background-color: #f5f4f8;
}

.schedule-spotlight {
  background-color: #f4f6f9;
}

.schedule-panel {
  background-color: #eef4f6;
}

.schedule-lunch {
  background-color: #f8f6ef;
}

/* Slight visual separation between morning and afternoon */

.schedule-table > thead > tr > th:nth-child(3),
.schedule-table > tbody > tr > td:nth-child(3) {
  border-left-width: 2px;
  border-left-color: #c8d5de;
}

/* Subtle hover effect */

.schedule-table > tbody > tr > td {
  transition: background-color 0.15s ease;
}

.schedule-table > tbody > tr:hover > td {
  filter: brightness(0.985);
}

/* Note below the schedule */

.schedule-note {
  margin-top: 10px;
  color: #71808b;
  font-size: 14px;
}

.schedule-note .fa {
  margin-right: 5px;
  color: #52738c;
}

/* Mobile layout */

@media (max-width: 767px) {
  .schedule-table > thead > tr > th,
  .schedule-table > tbody > tr > td {
    padding: 10px;
  }

  .schedule-event {
    min-width: 230px;
  }

  .schedule-time {
    width: 70px;
  }

  .session-icon {
    margin-right: 4px;
  }
}