/* ICACTCE'21 - archived static recreation */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #202124;
  line-height: 1.6;
  background: #ffffff;
}
a { color: #1a56b0; }
img { max-width: 100%; height: auto; }

/* Header */
.site-header {
  background: #3a2a63;
  color: #fff;
  border-bottom: 4px solid #e0a83a;
}
.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 20px;
}
.header-inner img { height: 54px; width: auto; border-radius: 4px; }
.header-inner .brand { font-size: 1.35rem; font-weight: 700; letter-spacing: .5px; color:#fff; text-decoration:none; }

/* Nav */
nav.main-nav { background: #5b3fa0; }
nav.main-nav ul {
  max-width: 1080px;
  margin: 0 auto;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
}
nav.main-nav a {
  display: block;
  color: #eaf2fb;
  text-decoration: none;
  padding: 12px 16px;
  font-size: .92rem;
  font-weight: 500;
}
nav.main-nav a:hover, nav.main-nav a.active { background: #e0a83a; color: #5b3fa0; }

/* Layout */
main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 32px 24px 60px;
}
.conf-title {
  text-align: center;
  margin-bottom: 8px;
  font-size: 1.5rem;
  color: #3a2a63;
}
.conf-sub {
  text-align: center;
  color: #5f6368;
  font-weight: 600;
  margin-bottom: 4px;
}
.conf-dates {
  text-align: center;
  color: #b8480a;
  font-weight: 600;
  margin-bottom: 28px;
}
h1.page-h { color: #3a2a63; font-size: 1.8rem; margin: 10px 0 20px; }
h2 { color: #5b3fa0; margin: 28px 0 12px; font-size: 1.3rem; }
h3 { color: #b8480a; margin: 20px 0 10px; font-size: 1.08rem; }
p { margin: 0 0 14px; }
ul.bullets { margin: 0 0 16px 22px; }
ul.bullets li { margin-bottom: 4px; }

.hero {
  text-align: center;
  background: linear-gradient(135deg,#3a2a63,#5b3fa0);
  color:#fff;
  padding: 40px 20px;
  border-radius: 8px;
  margin-bottom: 28px;
}
.hero h1 { color:#fff; font-size: 2rem; margin-bottom:10px; }
.hero p { color:#dce7f3; margin:0; }

.notice {
  background: #fff6e5;
  border-left: 4px solid #e0a83a;
  padding: 12px 16px;
  margin: 20px 0;
  font-weight: 600;
  color: #7a4a00;
}

.card {
  border: 1px solid #e2e6ea;
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 22px;
  background: #fbfcfd;
}
.speaker { display: flex; gap: 20px; align-items: flex-start; }
.speaker img { width: 180px; flex: 0 0 180px; border-radius: 8px; object-fit: cover; }
.speaker .info { flex: 1; }
.speaker .talk { font-style: italic; color:#b8480a; font-weight:600; }
@media (max-width: 640px){
  .speaker { flex-direction: column; }
  .speaker img { width: 100%; flex: none; }
}

.logos { display:flex; flex-wrap:wrap; gap:24px; align-items:center; justify-content:center; margin:16px 0; }
.logos img { max-height: 120px; width:auto; }

.dates-table { width:100%; border-collapse: collapse; margin: 12px 0; }
.dates-table td { border:1px solid #e2e6ea; padding:10px 14px; }
.dates-table td:first-child { font-weight:600; background:#f4f7fa; width:45%; }
.strike { text-decoration: line-through; color:#999; }

.btn-link {
  display:inline-block; background:#5b3fa0; color:#fff !important;
  padding:8px 16px; border-radius:5px; text-decoration:none; font-weight:600; margin:4px 6px 4px 0;
}
.btn-link:hover { background:#e0a83a; color:#5b3fa0 !important; }

footer.site-footer {
  background:#3a2a63; color:#c7d6e6; text-align:center;
  padding:22px 20px; font-size:.85rem;
}
.video-wrap { position:relative; padding-bottom:56.25%; height:0; margin:20px 0; }
.video-wrap iframe { position:absolute; top:0; left:0; width:100%; height:100%; border:0; border-radius:8px; }
.archive-banner {
  background:#eef3f8; border:1px dashed #9db8d2; color:#3a5a7a;
  padding:8px 14px; font-size:.82rem; text-align:center;
}