:root {
  --bg: #ffffff;
  --panel: rgba(255, 255, 255, 0.95);
  --panel-strong: #f1f5f9;
  --text: rgba(15, 23, 42, 0.92);
  --muted: rgba(51, 65, 85, 0.88);
  --border: rgba(15, 23, 42, 0.1);
  --accent: #2563eb;
  --shadow: 0 12px 40px rgba(15, 23, 42, 0.08);
  --radius: 16px;
  --max: 1100px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  font-size: 16.5px;
  background: linear-gradient(180deg, #fafbfd 0%, #ffffff 45%, #f4f7fb 100%);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

.content a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  text-decoration-color: rgba(37, 99, 235, 0.45);
}

.content a:hover {
  text-decoration-color: rgba(37, 99, 235, 0.85);
}

.content a:focus-visible {
  outline: 2px solid rgba(37, 99, 235, 0.65);
  outline-offset: 3px;
  border-radius: 8px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: #fff;
  color: #000;
  padding: 10px 12px;
  border-radius: 10px;
  z-index: 1000;
}

.skip-link:focus {
  left: 12px;
  top: 12px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  backdrop-filter: saturate(115%) blur(2px);
  background: rgba(7, 10, 24, 0.45);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-nav {
  max-width: calc(var(--max) + 80px);
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 18px;
  min-width: 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-title {
  font-weight: 700;
  letter-spacing: 0.2px;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0;
  margin: 0;
  list-style: none;
  min-width: 0;
  flex-wrap: wrap;
}

.nav-link {
  appearance: none;
  background: transparent;
  border: 0;
  color: var(--text);
  font-weight: 600;
  font-size: 15px;
  font: inherit;
  cursor: pointer;
  padding: 10px 12px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  line-height: 1;
}

.site-header .nav-links .nav-link {
  color: rgba(255, 255, 255, 0.90);
}

.site-header .nav-links .nav-link:hover,
.site-header .nav-links .nav-link:focus-visible {
  color: rgba(255, 255, 255, 0.96);
}

.site-header .brand,
.site-header .brand-title {
  color: rgba(255, 255, 255, 0.95);
}

.nav-link:hover,
.nav-link:focus-visible {
  outline: none;
  background: rgba(255, 255, 255, 0.08);
}

.dropdown {
  position: relative;
}

.dropdown.open {
  z-index: 10000;
}

.dropdown-toggle::after {
  content: "";
  width: 8px;
  height: 8px;
  border-right: 2px solid rgba(255, 255, 255, 0.7);
  border-bottom: 2px solid rgba(255, 255, 255, 0.7);
  transform: rotate(45deg);
  margin-left: 2px;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 240px;
  padding: 8px;
  margin: 0;
  list-style: none;
  border-radius: 14px;
  /* 25% transparent (alpha 0.75): balance vs readability over light content */
  background: rgba(74, 85, 104, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 16px 48px rgba(15, 23, 42, 0.2);
  display: none;
  z-index: 10001;
}

.dropdown.open .dropdown-menu {
  display: block;
}

.dropdown-link {
  display: block;
  padding: 10px 10px;
  border-radius: 12px;
  color: rgba(255, 255, 255, 0.9);
}

.dropdown-link:hover,
.dropdown-link:focus-visible {
  outline: none;
  background: rgba(255, 255, 255, 0.12);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.nav-logo {
  height: 44px;
  width: auto;
  background: transparent;
  padding: 0;
  border-radius: 12px;
  border: 0;
  filter: drop-shadow(0 10px 22px rgba(0, 0, 0, 0.35));
}

.main {
  width: 100%;
}

/* Hero + slideshow: keep light text on imagery (body is dark text elsewhere) */
.hero {
  position: relative;
  padding: 0;
  min-height: min(78vh, 720px);
  width: 100%;
  overflow: hidden;
  color: #ffffff;
}

.hero h1.hero-title {
  color: #ffffff;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 92px 18px 56px;
  text-align: center;
}

.hero-overlay-inner {
  border-radius: var(--radius);
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.35);
  padding: 32px 32px;
  backdrop-filter: blur(2px) saturate(115%);
  max-width: min(980px, calc(100vw - 36px));
}

.hero-logo {
  /* Match CCS 2026 hero: SIGSAC logo is shown at 200px wide (see CCS masthead markup). */
  width: 200px;
  max-width: 100%;
  height: auto;
  margin: 0 auto 14px;
  display: block;
  filter: drop-shadow(0 14px 26px rgba(0, 0, 0, 0.35));
}

.hero-kicker {
  margin: 0 0 8px;
  color: rgba(255, 255, 255, 0.82);
  font-weight: 600;
  letter-spacing: 0.2px;
  font-size: 1.05rem;
}

.hero-title {
  margin: 0 0 10px;
  font-size: clamp(36px, 5vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.6px;
}

.hero-meta {
  margin: 0;
  color: rgba(255, 255, 255, 0.84);
  font-weight: 500;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
}

.hero-meta-dot {
  opacity: 0.75;
}

.slideshow {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.slide {
  height: 100%;
  width: 100%;
  border-radius: 0;
  overflow: hidden;
  border: 0;
  box-shadow: none;
  background-image: var(--bg);
  background-size: cover;
  background-position: center;
  filter: brightness(1.12) saturate(1.06) contrast(1.02);
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: scale(1.01);
  transition: opacity 700ms ease, transform 1400ms ease;
}

.slide.is-active {
  opacity: 1;
  transform: scale(1);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 10;
  background: radial-gradient(900px 520px at 50% 30%, rgba(2, 6, 23, 0.10), transparent 60%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 110px;
  z-index: 12;
  pointer-events: none;
  background: linear-gradient(
    to bottom,
    rgba(250, 251, 253, 0) 0%,
    rgba(250, 251, 253, 0.08) 35%,
    rgba(250, 251, 253, 0.26) 65%,
    rgba(250, 251, 253, 0.55) 88%,
    #fafbfd 100%
  );
}

.slide-dots {
  position: absolute;
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  display: inline-flex;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(10px);
  z-index: 30;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.25);
  cursor: pointer;
}

.dot[aria-current="true"] {
  background: rgba(147, 197, 253, 0.95);
  border-color: rgba(191, 219, 254, 0.95);
}

.content {
  max-width: calc(var(--max) + 80px);
  margin: 0 auto;
  padding: 26px 20px 70px;
}

.content ul li + li,
.content ol li + li {
  margin-top: 10px;
}

section[id] {
  scroll-margin-top: 84px;
}

.section {
  padding: 54px 0 0;
}

.section-header {
  margin-bottom: 18px;
}

.section-header h2 {
  margin: 0 0 8px;
  font-size: 28px;
  letter-spacing: -0.3px;
  color: var(--text);
}

.section-subtitle {
  margin: 0;
  color: var(--muted);
  max-width: 75ch;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
}

.card {
  grid-column: span 12;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 18px;
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 10px;
  letter-spacing: -0.2px;
  color: var(--text);
}

.card .cfp-section-rule {
  border: 0;
  margin: 28px 0 20px;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(15, 23, 42, 0.08) 12%,
    rgba(37, 99, 235, 0.35) 50%,
    rgba(15, 23, 42, 0.08) 88%,
    transparent 100%
  );
}

.card p {
  margin: 0;
  color: rgba(15, 23, 42, 0.82);
  line-height: 1.55;
}

.card ul,
.card ol {
  color: rgba(15, 23, 42, 0.82);
}

.committee-flow {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0;
}

.committee-slot {
  padding: 14px 0;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

.committee-slot:first-child {
  padding-top: 0;
}

.committee-slot:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

/* Scoped to beat `.card p` (0,1,1) so role vs name size/weight actually apply */
.card p.committee-slot-role {
  margin: 0 0 10px;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.25px;
  color: rgba(15, 23, 42, 0.95);
  line-height: 1.28;
}

.card p.committee-slot-names {
  margin: 0;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.6;
  color: rgba(51, 65, 85, 0.9);
}

.card ul.committee-slot-names-list {
  margin: 0;
  padding-left: 18px;
  font-size: inherit;
  font-weight: 400;
  line-height: 1.6;
  color: rgba(51, 65, 85, 0.9);
}

.committee-flow ul.committee-slot-names-list {
  font-size: 14px;
}

.card p.committee-label {
  margin: 12px 0 6px;
}

.card p.committee-label:first-child {
  margin-top: 0;
}

.card ul.committee-slot-names-list li + li {
  margin-top: 6px;
}

.map-embed {
  margin-top: 14px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: rgba(15, 23, 42, 0.02);
}

.map-embed iframe {
  display: block;
  width: 100%;
  height: 360px;
  border: 0;
}

/* Steering committee: larger name, smaller affiliation on the line below */
.steering-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
  margin: 0;
  padding: 0;
}

.steering-member {
  margin: 0;
  padding: 0;
}

.card .steering-member-name {
  margin: 0 0 4px;
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.2px;
  color: rgba(15, 23, 42, 0.95);
}

.card .steering-member-affil {
  margin: 0;
  font-size: 0.8125rem;
  font-weight: 400;
  line-height: 1.45;
  color: rgba(51, 65, 85, 0.78);
}

.grid .card {
  grid-column: span 12;
}

.timeline {
  display: grid;
  gap: 12px;
}

.timeline-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  padding: 12px 12px;
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.04);
  border: 1px solid rgba(15, 23, 42, 0.08);
}

.timeline-label {
  font-weight: 600;
  color: var(--text);
}

.timeline-value {
  color: rgba(51, 65, 85, 0.92);
  font-variant-numeric: tabular-nums;
}

.sponsorship-callout {
  margin: 18px 0 4px;
  padding: 14px 14px;
  border-radius: 14px;
  border: 1px solid rgba(37, 99, 235, 0.18);
  background: rgba(37, 99, 235, 0.06);
}

.card p.sponsorship-callout-text {
  margin: 0;
  color: rgba(15, 23, 42, 0.9);
}

.sponsorship-facts {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.sponsorship-table-wrap {
  margin: 18px 0 10px;
  overflow-x: auto;
  border-radius: 16px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  background: rgba(255, 255, 255, 0.75);
}

.sponsorship-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

.sponsorship-table th,
.sponsorship-table td {
  padding: 12px 12px;
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  border-right: 1px solid rgba(15, 23, 42, 0.06);
  text-align: center;
  vertical-align: middle;
}

.sponsorship-table th:last-child,
.sponsorship-table td:last-child {
  border-right: 0;
}

.sponsorship-table thead th {
  background: rgba(37, 99, 235, 0.9);
  color: rgba(255, 255, 255, 0.96);
  font-weight: 700;
  letter-spacing: 0.2px;
}

.sponsorship-table tbody tr:nth-child(even) {
  background: rgba(15, 23, 42, 0.02);
}

.sponsorship-table .benefit-col {
  text-align: left;
  font-weight: 700;
  background: rgba(15, 23, 42, 0.03);
}

.sponsorship-check {
  display: inline-flex;
  width: 26px;
  height: 26px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.14);
  border: 1px solid rgba(16, 185, 129, 0.32);
  color: rgba(5, 150, 105, 0.95);
  font-weight: 800;
  line-height: 1;
}

.footer {
  border-top: 1px solid rgba(15, 23, 42, 0.08);
  background: rgba(248, 250, 252, 0.95);
}

.footer-inner {
  max-width: calc(var(--max) + 80px);
  margin: 0 auto;
  padding: 28px 24px;
  color: rgba(51, 65, 85, 0.82);
}

/* Footer message + centered copyright */
.footer-inner p {
  margin: 0;
  line-height: 1.55;
}

.footer-inner p + p {
  margin-top: 12px;
}

/* Copyright is the last footer line everywhere */
.footer-inner p:last-child {
  text-align: center;
}

/* Make footer links stand out */
.footer-inner a {
  color: rgba(15, 23, 42, 0.88);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  text-decoration-color: rgba(15, 23, 42, 0.35);
}

.footer-inner a:hover {
  color: rgba(15, 23, 42, 0.95);
  text-decoration-color: rgba(15, 23, 42, 0.6);
}

.footer-inner a:focus-visible {
  outline: 2px solid rgba(37, 99, 235, 0.65);
  outline-offset: 3px;
  border-radius: 8px;
}

@media (min-width: 820px) {
  .grid .card {
    grid-column: span 4;
  }

  .card {
    padding: 20px 20px;
  }
}

@media (max-width: 720px) {
  .nav-links {
    gap: 2px;
  }
  .brand-title {
    font-size: 14px;
  }
  .nav-logo {
    height: 38px;
  }
  .hero-overlay-inner {
    padding: 18px 16px;
  }
}