@import url("https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@600;700;800&display=swap");

:root {
  --ink: #17233c;
  --muted: #5f6c82;
  --navy: #101a3b;
  --purple: #6f54b5;
  --purple-dark: #513795;
  --lavender: #f2effa;
  --aqua: #53c9c2;
  --line: #e4e7ef;
  --paper: #ffffff;
  --surface: #f8f9fc;
  --shadow: 0 18px 50px rgba(26, 35, 68, 0.1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "DM Sans", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.7;
}
a { color: var(--purple-dark); text-decoration: none; }
a:hover, a:focus-visible { color: var(--purple); text-decoration: underline; }
a:focus-visible { outline: 3px solid rgba(83, 201, 194, .45); outline-offset: 4px; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255,255,255,.95);
  border-bottom: 1px solid rgba(228,231,239,.9);
  backdrop-filter: blur(14px);
}
.nav-inner {
  max-width: 1160px;
  min-height: 72px;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: "Manrope", sans-serif;
  font-weight: 800;
  font-size: 1.18rem;
  letter-spacing: -.03em;
  color: var(--navy);
  white-space: nowrap;
}
.brand:hover { text-decoration: none; color: var(--purple-dark); }
.brand-logo { width: 32px; height: 32px; object-fit: contain; flex: 0 0 auto; }
.site-nav { display: flex; align-items: center; gap: 25px; font-size: .88rem; font-weight: 600; }
.site-nav a { color: #4e5970; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--purple-dark); text-decoration: none; }
.nav-cta { padding: 9px 15px; border-radius: 8px; color: white !important; background: var(--purple-dark); }
.nav-cta:hover { background: var(--purple); }

.hero {
  position: relative;
  overflow: hidden;
  color: white;
  background: linear-gradient(118deg, #101936 0%, #302760 53%, #6f54b5 100%);
}
.hero::before, .hero::after { content: ""; position: absolute; border-radius: 50%; pointer-events: none; }
.hero::before { width: 420px; height: 420px; right: -100px; top: -180px; border: 72px solid rgba(83,201,194,.16); }
.hero::after { width: 250px; height: 250px; left: 50%; bottom: -200px; border: 45px solid rgba(255,255,255,.07); }
.hero-inner { position: relative; max-width: 1160px; margin: 0 auto; padding: 80px 28px 74px; }
.eyebrow { margin: 0 0 18px; color: #a8ebe6; font-size: .82rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }
.hero h1 { max-width: 900px; margin: 0; font-family: "Manrope", sans-serif; font-size: clamp(2.45rem, 5.5vw, 4.65rem); line-height: 1.04; letter-spacing: -.055em; }
.hero h1 span { color: #9ce4df; }
.subtitle { max-width: 790px; margin: 24px 0 30px; font-size: clamp(1.08rem, 2vw, 1.35rem); line-height: 1.55; color: #e7e8f3; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 12px; margin: 0; padding: 0; list-style: none; }
.hero-meta li { padding: 9px 14px; border: 1px solid rgba(255,255,255,.24); border-radius: 999px; background: rgba(255,255,255,.08); color: #fff; font-size: .9rem; }

.announcement { background: var(--lavender); border-bottom: 1px solid #e3dcf3; }
.announcement p { max-width: 1104px; margin: 0 auto; padding: 14px 28px; color: #4b3b78; font-size: .94rem; }
.announcement strong { color: var(--purple-dark); }

.container { max-width: 1160px; margin: 0 auto; padding: 68px 28px 80px; }
.content-grid { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(270px, .7fr); gap: 60px; align-items: start; }
section { margin-bottom: 66px; }
h2, h3 { font-family: "Manrope", sans-serif; color: var(--navy); line-height: 1.25; }
h2 { position: relative; margin: 0 0 25px; padding-top: 14px; font-size: clamp(1.75rem, 3vw, 2.25rem); letter-spacing: -.035em; }
h2::before { content: ""; position: absolute; top: 0; left: 0; width: 46px; height: 4px; border-radius: 4px; background: var(--aqua); }
h3 { margin: 32px 0 13px; font-size: 1.24rem; }
p { margin: 0 0 18px; }
ul { margin: 0 0 18px; padding-left: 22px; }
li { margin-bottom: 9px; }

.side-card, .info-card { padding: 27px; border: 1px solid var(--line); border-radius: 13px; background: var(--paper); box-shadow: var(--shadow); }
.side-card { position: sticky; top: 100px; }
.side-card h2 { font-size: 1.35rem; margin-bottom: 20px; }
.date-list { margin: 0; padding: 0; list-style: none; }
.date-list li { padding: 15px 0; border-bottom: 1px solid var(--line); }
.date-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.date-list span { display: block; color: var(--muted); font-size: .8rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.date-list strong { color: var(--navy); font-size: 1.03rem; }
.note { color: var(--muted); font-size: .91rem; }

.people-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin: 0; padding: 0; list-style: none; }
.person { min-height: 168px; padding: 18px; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); display: flex; align-items: center; gap: 18px; }
.person img { width: 104px; height: 124px; flex: 0 0 104px; border-radius: 9px; object-fit: cover; object-position: center top; background: #e9ebf1; }
.person-details { min-width: 0; }
.person strong { display: block; color: var(--navy); font-family: "Manrope", sans-serif; font-size: 1.05rem; }
.person strong a { color: var(--navy); }
.person strong a:hover, .person strong a:focus-visible { color: var(--purple-dark); }
.person span { display: block; margin: 5px 0 12px; color: var(--muted); font-size: .91rem; line-height: 1.45; }
.person a { font-size: .85rem; font-weight: 600; overflow-wrap: anywhere; }
.committee-placeholder { padding: 26px; border: 1px dashed #bbb3d4; border-radius: 12px; background: var(--lavender); color: #635781; }
.callout { padding: 24px 26px; border-left: 4px solid var(--aqua); border-radius: 0 10px 10px 0; background: #f1fbfa; }

.cfp-layout { max-width: 860px; }
.topic-list li::marker { color: var(--aqua); }
.submission-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 15px; margin: 24px 0 30px; }
.submission-card { padding: 22px; border: 1px solid var(--line); border-radius: 11px; background: var(--surface); }
.submission-card strong { display: block; color: var(--navy); font-family: "Manrope", sans-serif; }
.submission-card span { color: var(--muted); font-size: .9rem; }

.footer { color: #c9cfdf; background: var(--navy); }
.footer-inner { max-width: 1160px; margin: 0 auto; padding: 35px 28px; display: flex; justify-content: space-between; gap: 28px; align-items: center; }
.footer strong { display: block; color: white; font-family: "Manrope", sans-serif; }
.footer p { margin: 2px 0; font-size: .87rem; }
.footer a { color: #a8ebe6; }

@media (max-width: 860px) {
  .nav-inner { min-height: auto; padding-top: 16px; padding-bottom: 16px; align-items: flex-start; flex-direction: column; gap: 12px; }
  .site-nav { width: 100%; gap: 10px 18px; overflow-x: auto; padding-bottom: 2px; }
  .nav-cta { padding: 4px 0; color: var(--purple-dark) !important; background: none; }
  .hero-inner { padding-top: 62px; }
  .content-grid { grid-template-columns: 1fr; gap: 0; }
  .side-card { position: static; margin-bottom: 60px; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .site-nav { font-size: .82rem; }
  .hero-inner { padding: 52px 20px 50px; }
  .hero h1 { font-size: 2.55rem; }
  .container { padding: 52px 20px 64px; }
  .announcement p { padding-left: 20px; padding-right: 20px; }
  .people-grid, .submission-grid { grid-template-columns: 1fr; }
  .person img { width: 96px; height: 114px; flex-basis: 96px; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}