:root{
  --isu-green:#0b4f34;
  --isu-green-dark:#063523;
  --isu-accent:#f39c12;
  --page-bg:#f5f7fb;
  --text-muted-2:#6c757d;
}

html, body{
  height:100%;
}

body{
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  background: var(--page-bg);
  color:#101828;
}

/* Top bar */
.topbar{
  background:#0a0a0a;
  color:#fff;
  font-size:.9rem;
}
.topbar .topbar-item{
  display:flex;
  gap:.5rem;
  align-items:center;
  white-space:nowrap;
}
.topbar .topbar-item i{
  color:var(--isu-accent);
}
.topbar a{
  color:#fff;
  text-decoration:none;
}
.topbar a:hover{
  text-decoration:underline;
}

/* Navbar */
.isu-navbar{
  background: var(--isu-green);
}
.isu-navbar .navbar-brand{
  display:flex;
  align-items:center;
  color:#fff;
  font-weight:700;
}
.isu-navbar .brand-mark{
  width:52px;
  height:52px;
  border-radius:50%;
  background: radial-gradient(circle at 30% 30%, #2bd28b, #0b4f34 62%, #063523);
  border:2px solid rgba(255,255,255,.6);
  box-shadow: 0 6px 16px rgba(0,0,0,.15);
  display:grid;
  place-items:center;
  color:#fff;
  font-weight:900;
  letter-spacing:.04em;
  font-size:.9rem;
}
.isu-navbar .brand-lines{
  display:flex;
  flex-direction:column;
  line-height:1.05;
}
.isu-navbar .brand-lines small{
  opacity:.85;
  font-weight:600;
}
.isu-navbar .nav-link{
  color:rgba(255,255,255,.92);
  font-weight:700;
  letter-spacing:.02em;
  text-transform:uppercase;
  font-size:.9rem;
}
.isu-navbar .nav-link:hover{
  color:#fff;
}
.isu-navbar .nav-link.active{
  color:#fff;
  position:relative;
}
.isu-navbar .nav-link.active::after{
  content:"";
  position:absolute;
  left:.5rem;
  right:.5rem;
  bottom:.2rem;
  height:3px;
  border-radius:999px;
  background: var(--isu-accent);
}
.isu-navbar .nav-icons{
  display:flex;
  align-items:center;
  gap:.75rem;
}
.isu-navbar .nav-icons a{
  color:rgba(255,255,255,.92);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:8px;
  transition: background .15s ease, color .15s ease;
}
.isu-navbar .nav-icons a:hover{
  background: rgba(255,255,255,.12);
  color:#fff;
}

/* Mobile toggle icon sizing (was too large) */
.isu-navbar .isu-nav-toggle{
  padding: .35rem .55rem;
  line-height: 1;
}
.isu-navbar .isu-nav-toggle i{
  font-size: 1.35rem;
  vertical-align: middle;
}

@media (max-width: 575.98px){
  .isu-navbar .isu-nav-toggle{
    padding: .25rem .45rem;
  }
  .isu-navbar .isu-nav-toggle i{
    font-size: 1.1rem;
  }
}

/* Page sections */
.page-wrap{
  padding-top: 1.5rem;
  padding-bottom: 3.5rem;
}

.section-title{
  text-align:center;
  font-weight:900;
  letter-spacing:.01em;
  color:#111827;
}
.section-underline{
  width:34px;
  height:4px;
  margin:.75rem auto 0;
  background: var(--isu-accent);
  border-radius:999px;
}

.surface{
  background:#fff;
  border:1px solid rgba(16,24,40,.06);
  box-shadow: 0 10px 28px rgba(16,24,40,.08);
  border-radius: 14px;
}

/* Home banner carousel */
.home-banner .carousel{
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 10px 28px rgba(16,24,40,.08);
}
.home-banner .carousel img{
  border-radius: 14px;
}

.text-preview {
  display: inline;
}

  .read-more {
  color: #0d6efd;
  cursor: pointer;
  white-space: nowrap;
}

/* Hero */
.hero{
  position:relative;
  background: linear-gradient(135deg, rgba(11,79,52,.92), rgba(6,53,35,.92));
  color:#fff;
  border-radius: 14px;
  overflow:hidden;
  min-height: 360px;
}
.hero::before{
  content:"";
  position:absolute;
  inset:-40%;
  background:
    radial-gradient(circle at 18% 24%, rgba(243,156,18,.22), transparent 55%),
    radial-gradient(circle at 70% 60%, rgba(43,210,139,.14), transparent 60%),
    radial-gradient(circle at 40% 90%, rgba(255,255,255,.10), transparent 50%);
  transform: rotate(8deg);
}
.hero-content{
  position:relative;
  padding: 3.25rem 1.25rem;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  padding:.35rem .75rem;
  border-radius:999px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.18);
  font-weight:700;
}
.hero h1{
  margin-top:1rem;
  font-weight:900;
  text-transform:uppercase;
  line-height:1.06;
  letter-spacing:.015em;
}
.hero h1 .accent{
  color: var(--isu-accent);
}
.hero-sub{
  opacity:.92;
  font-weight:700;
}
.hero-cta .btn{
  font-weight:800;
}

/* Feature icons (hex outline) */
.hex{
  width:44px;
  height:44px;
  border:2px solid rgba(16,24,40,.18);
  border-radius: 12px;
  transform: rotate(20deg);
  display:grid;
  place-items:center;
  margin-bottom:.5rem;
  background: rgba(255,255,255,.85);
}
.hex > i{
  transform: rotate(-20deg);
  color: var(--isu-green);
  font-size: 1.25rem;
}

/* Lists */
.soft-list{
  margin:0;
  padding-left: 1rem;
}
.soft-list li{
  margin-bottom:.25rem;
  color: rgba(16,24,40,.82);
}

/* Committees list style */
.committee-block h3{
  color: var(--isu-accent);
  font-weight:900;
}
.committee-block .divider{
  height:2px;
  background: rgba(243,156,18,.8);
  border-radius:999px;
  margin:.5rem 0 1rem;
}
.committee-item{
  background:#f7f8fa;
  border-radius:10px;
  padding:.75rem 1rem;
  border-left: 4px solid rgba(243,156,18,.9);
  color: rgba(16,24,40,.88);
}

/* Speakers */
.speaker-card{
  border:0;
  background:transparent;
}
.speaker-avatar{
  width: 160px;
  height: 210px;
  min-width: 160px;
  min-height: 210px;
  flex-shrink: 0;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(11,79,52,.20), rgba(243,156,18,.18));
  border: 1px solid rgba(16,24,40,.10);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.speaker-avatar i{
  font-size: 2.25rem;
  color: rgba(11,79,52,.75);
}
.speaker-avatar img{
  width: 160px;
  height: 210px;
  min-width: 160px;
  min-height: 210px;
  object-fit: cover;
  object-position: center;
  display: block;
  background: rgba(255,255,255,.85);
}

/* Fixed size on small screens too */
@media (max-width: 575.98px){
  .speaker-avatar,
  .speaker-avatar img{
    width: 140px;
    height: 190px;
    min-width: 140px;
    min-height: 190px;
  }
}

/* More margin between first and second speaker in a row */
.speakers-carousel .speaker-col-second{
  margin-left: 1.5rem;
}
@media (min-width: 992px){
  .speakers-carousel .speaker-col-second{
    margin-left: 2.5rem;
  }
}

/* Speaker text: allow wrapping, prevent overflow */
.speaker-block-text{
  min-width: 0;
  word-wrap: break-word;
  overflow-wrap: break-word;
  word-break: break-word;
}
.carousel-indicators [data-bs-target]{
  width:8px;
  height:8px;
  border-radius:50%;
}

/* Make speaker carousel controls + dots visible on white cards */
.speakers-carousel .carousel-control-prev,
.speakers-carousel .carousel-control-next{
  width: 3.25rem;
}
.speakers-carousel .carousel-control-prev-icon,
.speakers-carousel .carousel-control-next-icon{
  border-radius: 999px;
  background-color: rgba(11,79,52,.10);
  background-size: 50% 50%;
  box-shadow: 0 10px 24px rgba(0,0,0,.10);
}
.speakers-carousel .carousel-indicators{
  gap: .35rem;
}
.speakers-carousel .carousel-indicators [data-bs-target]{
  background-color: rgba(11,79,52,.35);
  opacity: 1;
}
.speakers-carousel .carousel-indicators .active{
  background-color: var(--isu-accent);
}

/* Forms */
.form-surface{
  background:#fff;
  border-radius: 14px;
  border:1px solid rgba(16,24,40,.06);
  box-shadow: 0 10px 28px rgba(16,24,40,.08);
}
.form-accent{
  border-left: 4px solid rgba(13,110,253,.85);
}

/* Footer */
.site-footer{
  background: #0a0a0a;
  color: rgba(255,255,255,.85);
}
.site-footer a{
  color: rgba(255,255,255,.92);
  text-decoration:none;
}
.site-footer a:hover{
  text-decoration:underline;
}

/* Scroll-to-top */
.scroll-top{
  position:fixed;
  left:16px;
  bottom:16px;
  z-index:1040;
  width:42px;
  height:42px;
  border-radius: 10px;
  display:none;
  align-items:center;
  justify-content:center;
  box-shadow: 0 10px 24px rgba(0,0,0,.18);
}

@media (max-width: 991.98px){
  .isu-navbar .nav-link.active::after{
    left:0;
    right:auto;
    width:20px;
  }
  .topbar{
    font-size:.85rem;
  }
}