/* CSi5 2026 refresh */
:root{
  --csi-primary:#0c74bc;
  --csi-dark:#0f2240;
  --csi-accent:#13a9c7;
  --csi-soft:#eef7fb;
  --csi-warm:#f8fbff;
  --csi-border:rgba(15,34,64,.12);
  --csi-shadow:0 18px 50px rgba(15,34,64,.10);
}

body.csi2026-site{
  color:#18314f;
  background:#f8fbff;
}

body.csi2026-site p,
body.csi2026-site li{
  color:#48627c;
  line-height:1.75;
}

body.csi2026-site h1,
body.csi2026-site h2,
body.csi2026-site h3,
body.csi2026-site h4,
body.csi2026-site h5{
  color:var(--csi-dark);
}

.header-section{
  box-shadow:0 10px 35px rgba(10,31,68,.08);
}

.header-section .header-bottom{
  background:rgba(255,255,255,.94);
  backdrop-filter: blur(10px);
}

.header-section .logo img{
  max-height:52px;
  width:auto;
}

.menu-area .menu > li > a{
  font-weight:700;
  letter-spacing:.02em;
}

.banner-section.csi-hero{
  position:relative;
  background:
    linear-gradient(135deg, rgba(7,34,78,.92), rgba(12,116,188,.78)),
    url("../images/banner/banner2-home.png") center/cover no-repeat;
  overflow:hidden;
}

.banner-section.csi-hero::after{
  content:"";
  position:absolute;
  inset:auto -8% -120px auto;
  width:420px;
  height:420px;
  background:radial-gradient(circle, rgba(255,255,255,.22), rgba(255,255,255,0));
  pointer-events:none;
}

.banner-section.csi-hero .banner-wrapper{
  padding:140px 0 100px;
}

.banner-section.csi-hero .banner-content h1,
.banner-section.csi-hero .banner-content h2,
.banner-section.csi-hero .banner-content h4,
.banner-section.csi-hero .banner-content p,
.banner-section.csi-hero .banner-content li{
  color:#fff;
}

.banner-badge{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:10px 18px;
  margin-bottom:22px;
  border-radius:999px;
  background:rgba(255,255,255,.15);
  color:#fff;
  font-size:14px;
  font-weight:700;
  letter-spacing:.05em;
  text-transform:uppercase;
}

.banner-subnote{
  max-width:880px;
  margin:18px auto 0;
  font-size:18px;
  opacity:.92;
}

.hero-meta-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  margin-top:34px;
}

.hero-meta-card{
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.22);
  border-radius:20px;
  padding:18px 20px;
  text-align:left;
  box-shadow:0 20px 45px rgba(0,0,0,.10);
}

.hero-meta-card span{
  display:block;
  margin-bottom:8px;
  color:#c8eaff;
  font-size:12px;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.08em;
}

.hero-meta-card strong{
  display:block;
  color:#fff;
  font-size:18px;
  line-height:1.45;
  font-weight:800;
}

.section-soft{
  background:var(--csi-soft);
}

.section-white{
  background:#fff;
}

.section-header p.section-lead{
  max-width:900px;
  margin:12px auto 0;
  color:#56708a;
}

.intro-card,
.track-card,
.date-card,
.fee-card,
.committee-card,
.info-card,
.notice-box,
.organizer-card,
.session-card,
.contact-card{
  background:#fff;
  border:1px solid var(--csi-border);
  border-radius:24px;
  box-shadow:var(--csi-shadow);
}

.intro-card{
  padding:34px;
}

.intro-card h3{
  margin-bottom:16px;
}

.info-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
  margin-top:22px;
}

.info-card{
  padding:20px 22px;
}

.info-card .label{
  font-size:12px;
  font-weight:800;
  text-transform:uppercase;
  letter-spacing:.08em;
  color:var(--csi-primary);
  margin-bottom:8px;
}

.info-card .value{
  font-size:18px;
  line-height:1.45;
  font-weight:800;
  color:var(--csi-dark);
}

.track-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}

.track-card{
  padding:28px;
  height:100%;
}

.track-card .track-number{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:50%;
  background:linear-gradient(135deg, var(--csi-primary), var(--csi-accent));
  color:#fff;
  font-size:16px;
  font-weight:800;
  margin-bottom:16px;
}

.track-card h4{
  margin-bottom:12px;
  font-size:24px;
}

.inline-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:18px;
}

.inline-tags span{
  display:inline-block;
  padding:8px 12px;
  border-radius:999px;
  background:#eef6ff;
  color:var(--csi-primary);
  font-size:13px;
  font-weight:700;
}

.date-grid,
.fee-grid,
.committee-grid,
.organizer-grid,
.sessions-grid,
.contact-grid{
  display:grid;
  gap:24px;
}

.date-grid{
  grid-template-columns:repeat(4,minmax(0,1fr));
}

.date-card{
  padding:26px 24px;
  text-align:center;
}

.date-card .date{
  color:var(--csi-primary);
  font-size:32px;
  line-height:1.1;
  font-weight:800;
}

.date-card .month{
  margin-top:6px;
  color:var(--csi-dark);
  font-size:16px;
  font-weight:800;
  letter-spacing:.04em;
  text-transform:uppercase;
}

.date-card p{
  margin:14px 0 0;
  font-weight:700;
  color:#57718a;
}

.fee-grid{
  grid-template-columns:repeat(3,minmax(0,1fr));
}

.fee-card{
  padding:28px;
  height:100%;
}

.fee-card .pill{
  display:inline-block;
  padding:8px 14px;
  border-radius:999px;
  background:#edf6ff;
  color:var(--csi-primary);
  font-size:12px;
  font-weight:800;
  letter-spacing:.06em;
  text-transform:uppercase;
}

.fee-card h4{
  margin:14px 0 12px;
  min-height:62px;
}

.rate-box{
  margin-top:18px;
  padding:18px 18px 16px;
  border-radius:18px;
  background:#f7fbff;
  border:1px solid rgba(12,116,188,.12);
}

.rate-box h5{
  margin-bottom:8px;
  font-size:18px;
}

.rate-box p{
  margin:0;
  font-size:14px;
  line-height:1.7;
}

.simple-list{
  margin:14px 0 0;
  padding-left:18px;
}

.simple-list li{
  margin-bottom:6px;
}

.notice-box{
  padding:26px 28px;
  margin-bottom:24px;
}

.notice-box strong{
  color:var(--csi-dark);
}

.gallery-note{
  margin-top:8px;
  text-align:center;
  color:#6b8398;
}

.committee-grid{
  grid-template-columns:repeat(2,minmax(0,1fr));
}

.committee-card{
  padding:28px;
  height:100%;
}

.committee-card h4{
  margin-bottom:14px;
  padding-bottom:12px;
  border-bottom:1px solid rgba(15,34,64,.10);
}

.committee-card ul{
  margin:0;
  padding-left:18px;
}

.committee-card li{
  margin-bottom:8px;
}

.track-chair-list li{
  margin-bottom:12px;
}

.organizer-grid{
  grid-template-columns:repeat(3,minmax(0,1fr));
}

.organizer-card{
  padding:28px;
  text-align:center;
  height:100%;
}

.organizer-card img{
  max-height:90px;
  width:auto;
  margin-bottom:18px;
}

.organizer-card h4{
  margin-bottom:10px;
}

.speaker-hero{
  padding:34px;
}

.speaker-profile{
  display:grid;
  grid-template-columns:320px 1fr;
  gap:32px;
  align-items:center;
}

.speaker-profile img{
  width:100%;
  border-radius:24px;
  box-shadow:var(--csi-shadow);
}

.detail-label{
  display:inline-block;
  margin-bottom:12px;
  color:var(--csi-primary);
  font-size:13px;
  font-weight:800;
  text-transform:uppercase;
  letter-spacing:.08em;
}

.sessions-grid{
  grid-template-columns:repeat(3,minmax(0,1fr));
}

.session-card{
  padding:26px;
  height:100%;
}

.session-card .icon{
  width:52px;
  height:52px;
  border-radius:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:#eef6ff;
  color:var(--csi-primary);
  font-size:24px;
  margin-bottom:16px;
}

.contact-grid{
  grid-template-columns:repeat(3,minmax(0,1fr));
}

.contact-card{
  padding:28px;
  height:100%;
}

.contact-card .contact-title{
  margin-bottom:12px;
}

.map-frame{
  margin-top:30px;
  overflow:hidden;
  border-radius:28px;
  border:1px solid var(--csi-border);
  box-shadow:var(--csi-shadow);
}

.map-frame iframe{
  display:block;
  width:100%;
  min-height:460px;
  border:0;
}

.page-header{
  background:
    linear-gradient(135deg, rgba(7,34,78,.90), rgba(12,116,188,.70)),
    url("../images/banner/banner2-02.png") center/cover no-repeat;
}

.page-header .ph-title,
.page-header .lab-ul li,
.page-header .lab-ul li a{
  color:#fff;
}

.cta-panel{
  padding:34px;
  border-radius:28px;
  background:linear-gradient(135deg, #0f2240, #0c74bc);
  color:#fff;
  box-shadow:0 22px 60px rgba(9,39,83,.20);
}

.cta-panel h2,
.cta-panel p{
  color:#fff;
}

.lab-btn.brand-alt,
.lab-btn2.brand-alt{
  background:#fff;
  color:var(--csi-primary);
}

.footer-section .footer-bottom{
  background:rgba(12, 34, 64, .96);
}

.footer-section .footer-text{
  color:#d9e7f7;
}

.footer-links{
  margin:10px 0 0;
}

.footer-links a{
  color:#fff;
  margin:0 10px;
}

@media (max-width: 1199px){
  .hero-meta-grid,
  .info-strip,
  .date-grid,
  .fee-grid,
  .committee-grid,
  .organizer-grid,
  .sessions-grid,
  .contact-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}

@media (max-width: 991px){
  .banner-section.csi-hero .banner-wrapper{
    padding:120px 0 90px;
  }
  .speaker-profile{
    grid-template-columns:1fr;
  }
  .speaker-profile img{
    max-width:320px;
    margin:0 auto;
  }
}

@media (max-width: 767px){
  .hero-meta-grid,
  .info-strip,
  .track-grid,
  .date-grid,
  .fee-grid,
  .committee-grid,
  .organizer-grid,
  .sessions-grid,
  .contact-grid{
    grid-template-columns:1fr;
  }
  .intro-card,
  .speaker-hero,
  .notice-box,
  .committee-card,
  .fee-card,
  .contact-card,
  .track-card{
    padding:24px;
  }
  .banner-section.csi-hero .banner-content h1{
    font-size:54px;
  }
}