:root {
  --ink: #0f172a;
  --ink-soft: #1f2937;
  --muted: #52606d;
  --paper: #f9f6f0;
  --paper-2: #f3eee6;
  --accent: #f15946;
  --accent-2: #1f7a8c;
  --accent-3: #f7b32b;
  --line: rgba(15, 23, 42, 0.12);
  --shadow: 0 20px 60px rgba(15, 23, 42, 0.12);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-padding-top: 96px;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  font-family: "Space Grotesk", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at top left, rgba(241, 89, 70, 0.16), transparent 48%),
    radial-gradient(circle at 10% 20%, rgba(31, 122, 140, 0.12), transparent 45%),
    radial-gradient(circle at 80% 5%, rgba(247, 179, 43, 0.2), transparent 45%),
    var(--paper);
  min-height: 100vh;
  line-height: 1.6;
}

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

.highlight-accent {
  color: var(--accent);
  font-weight: 700;
}

img {
  max-width: 100%;
  display: block;
}

.announcement {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 10px 16px;
  background: #0f172a;
  color: #f9f6f0;
  font-size: 0.95rem;
}

.pill {
  background: var(--accent);
  color: #fff;
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(249, 246, 240, 0.88);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 16px 6vw;
  gap: 16px;
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: "Fraunces", serif;
}

.brand img {
  width: 44px;
  height: 44px;
}

.brand em {
  display: block;
  font-style: normal;
  font-size: 0.85rem;
  color: var(--muted);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 0.95rem;
  margin-left: auto;
}

.nav-links a {
  padding: 6px 0;
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.25s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-links a.is-active::after {
  width: 100%;
}

.nav-links a.is-active {
  color: var(--ink);
  font-weight: 700;
}

.nav-cta {
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-weight: 600;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-search {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.nav-search svg {
  width: 18px;
  height: 18px;
}

.nav-search:hover {
  transform: translateY(-2px);
  border-color: rgba(241, 89, 70, 0.55);
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.12);
}

.nav-search:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--ink);
  display: block;
}

main {
  padding: 40px 6vw 80px;
}

body.no-scroll {
  overflow: hidden;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 40px;
  align-items: center;
  padding: 40px;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.04), rgba(241, 89, 70, 0.12)),
    url("../hero-banner.svg");
  background-repeat: no-repeat;
  background-size: cover, 520px auto;
  background-position: left top, right center;
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.72rem;
  color: var(--muted);
  font-weight: 600;
}

.hero h1 {
  font-family: "Fraunces", serif;
  font-size: clamp(2.1rem, 3.6vw, 3.2rem);
  line-height: 1.1;
  margin: 16px 0 20px;
}

.hero h1 span {
  display: inline-block;
  color: var(--accent-2);
}

.lead {
  font-size: 1.1rem;
  color: var(--ink-soft);
  margin-bottom: 24px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--paper);
  font-size: 0.95rem;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.chip:hover {
  transform: translateY(-2px);
  border-color: rgba(31, 122, 140, 0.55);
  box-shadow: 0 10px 18px rgba(15, 23, 42, 0.12);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.12);
}

.btn.disabled {
  opacity: 0.55;
  pointer-events: none;
  transform: none;
  box-shadow: none;
}

.btn.primary {
  background: var(--ink);
  color: #fff;
}

.btn.ghost {
  background: #fff;
}

.btn.accent {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
}

.btn.accent:hover {
  box-shadow: 0 12px 22px rgba(241, 89, 70, 0.25);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.hero-metrics .metric-card {
  background: #fff;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid var(--line);
  text-align: center;
  display: block;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hero-metrics .metric-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.15);
}

.hero-metrics strong {
  display: block;
  font-size: 1.2rem;
}

.countdown {
  display: flex;
  gap: 20px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.countdown strong {
  display: block;
  font-size: 1.1rem;
}

.hero-visual {
  display: grid;
  gap: 24px;
  justify-items: center;
}

.signal-card {
  background: #fff;
  padding: 24px;
  border-radius: 20px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.signal-card h3 {
  font-family: "Fraunces", serif;
  margin-bottom: 12px;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 16px;
}

.flip-card {
  background: transparent;
  border: none;
  padding: 0;
  text-align: left;
  cursor: pointer;
  perspective: 1000px;
}

.flip-card:focus-visible {
  outline: 2px solid var(--accent);
  border-radius: 12px;
}

.flip-card-inner {
  position: relative;
  min-height: 90px;
  transition: transform 0.6s ease;
  transform-style: preserve-3d;
}

.flip-card-front,
.flip-card-back {
  position: absolute;
  inset: 0;
  border-radius: 12px;
  padding: 12px;
  background: var(--paper-2);
  border: 1px dashed var(--line);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  backface-visibility: hidden;
}

.flip-card-front strong {
  font-size: 1.4rem;
}

.flip-card-back {
  transform: rotateY(180deg);
  border-style: solid;
  background: #fff;
}

.flip-card:hover .flip-card-inner,
.flip-card:focus-visible .flip-card-inner,
.flip-card.is-flipped .flip-card-inner {
  transform: rotateY(180deg);
}

.signal-grid span {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.orbit {
  position: relative;
  width: 240px;
  height: 240px;
  display: grid;
  place-items: center;
}

.orbit-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed rgba(31, 122, 140, 0.35);
  animation: spin 18s linear infinite;
}

.orbit-ring:nth-child(1) {
  width: 100%;
  height: 100%;
}

.orbit-ring:nth-child(2) {
  width: 70%;
  height: 70%;
  animation-duration: 14s;
}

.orbit-ring:nth-child(3) {
  width: 40%;
  height: 40%;
  animation-duration: 10s;
}

.orbit-core {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
  color: #fff;
  display: grid;
  place-items: center;
  text-align: center;
  font-weight: 600;
  box-shadow: var(--shadow);
}

.orbit-core span {
  font-size: 1.1rem;
}

.orbit-core small {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section {
  padding: 24px 0;
}

.section.program-intro {
  padding-bottom: 40px;
}

.section.program-agenda {
  padding-top: 40px;
}

.section.alt {
  background: rgba(255, 255, 255, 0.6);
  border-radius: 30px;
  padding: 64px 5vw;
  border: 1px solid var(--line);
  margin-top: 12px;
}

.section-title {
  margin-bottom: 24px;
}

.section-title h2 {
  font-family: "Fraunces", serif;
  font-size: clamp(2rem, 3vw, 2.8rem);
  margin-top: 10px;
}

.section-subtitle {
  color: var(--ink-soft);
  max-width: 680px;
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  align-items: center;
}

.callout {
  background: #fff;
  padding: 24px;
  border-radius: 20px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.callout h3 {
  margin-bottom: 12px;
  font-family: "Fraunces", serif;
}

.callout .btn {
  margin-top: 14px;
}

.callout ul {
  list-style: none;
  display: grid;
  gap: 10px;
  color: var(--ink-soft);
}

.callout li::before {
  content: "+";
  color: var(--accent);
  font-weight: 700;
  margin-right: 8px;
}

.tracks {
  margin-top: 24px;
  display: grid;
  gap: 8px;
  background: #fff;
  padding: 18px 20px;
  border-radius: 16px;
  border: 1px solid var(--line);
}

.tag {
  display: inline-flex;
  width: fit-content;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--paper-2);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.grid {
  display: grid;
  gap: 20px;
}

.cards {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.cards article {
  background: #fff;
  padding: 22px;
  border-radius: 20px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.sponsor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
}

.sponsor-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  color: inherit;
  text-decoration: none;
  min-height: 120px;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.sponsor-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 36px rgba(16, 24, 40, 0.12);
}

.sponsor-card img {
  max-height: 48px;
  max-width: 180px;
  width: auto;
  height: auto;
}

.sponsor-name {
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: 1.1rem;
}

.sponsor-level {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}

.cards h3 {
  margin-bottom: 10px;
  font-family: "Fraunces", serif;
}

.cards ul {
  list-style: none;
  display: grid;
  gap: 8px;
  color: var(--ink-soft);
}

.cards li::before {
  content: "-";
  margin-right: 8px;
  color: var(--accent-2);
}

.updates {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.update-card {
  background: #fff;
  border-radius: 20px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 20px 22px;
  display: grid;
  gap: 10px;
}

.update-card h3 {
  font-family: "Fraunces", serif;
  font-size: 1.2rem;
  line-height: 1.2;
}

.update-card p {
  color: var(--ink-soft);
}

.update-date {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(31, 122, 140, 0.12);
  color: var(--ink);
  font-size: 0.85rem;
  font-weight: 600;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  align-items: start;
  padding: 16px 20px;
  border-radius: 18px;
  background: #fff;
  border: 1px solid var(--line);
}

.timeline-item h3 {
  margin-bottom: 6px;
}

.timeline-item .date {
  font-weight: 700;
  color: var(--accent-2);
}

.speakers {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.speakers article {
  background: #fff;
  padding: 20px;
  border-radius: 20px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  display: grid;
  gap: 10px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.speakers .avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(31, 122, 140, 0.95), rgba(241, 89, 70, 0.9));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  border: 2px solid rgba(15, 23, 42, 0.08);
}

.speakers .avatar-photo,
.organizers .avatar-photo {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(15, 23, 42, 0.1);
}

.organizers .avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(241, 89, 70, 0.9), rgba(247, 179, 43, 0.9));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  border: 2px solid rgba(15, 23, 42, 0.08);
}

.profile-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: inherit;
}

.profile-icons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.profile-icons a {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--paper-2);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.profile-icons a:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: 0 10px 18px rgba(15, 23, 42, 0.12);
}

.profile-icons a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.profile-icons svg {
  width: 16px;
  height: 16px;
}

.speakers span {
  color: var(--muted);
  font-size: 0.9rem;
}

.speakers .highlight {
  background: linear-gradient(120deg, rgba(241, 89, 70, 0.18), rgba(31, 122, 140, 0.15));
}

.speakers article:hover,
.organizers article:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.16);
}

.profile-card {
  cursor: pointer;
}

.profile-card .profile-link {
  position: relative;
  z-index: 2;
}

.schedule {
  display: grid;
  gap: 14px;
}

.schedule-item {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 20px;
  padding: 16px 20px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid var(--line);
}

.schedule-item span {
  font-weight: 700;
  color: var(--accent);
}

.checklist {
  list-style: none;
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.checklist li::before {
  content: "*";
  color: var(--accent);
  font-weight: 700;
  margin-right: 8px;
}

.policy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.policy-grid div {
  background: #fff;
  padding: 18px;
  border-radius: 16px;
  border: 1px solid var(--line);
}

.submission-extras {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  margin-top: 18px;
}

.submission-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 12px;
}

.submission-card h3 {
  font-family: "Fraunces", serif;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 1.05rem;
  margin: 0 0 6px;
}

.submission-types {
  display: grid;
  gap: 12px;
}

.submission-type strong {
  display: block;
  font-weight: 700;
  margin-bottom: 4px;
}

.submission-type span {
  color: var(--muted);
  font-size: 0.9rem;
}

.submission-steps {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 12px;
}

.submission-steps li::marker {
  color: var(--accent);
  font-weight: 700;
}

.submission-steps strong {
  display: block;
  font-weight: 700;
  margin-bottom: 4px;
}

.submission-steps span {
  color: var(--muted);
  font-size: 0.9rem;
}

.submission-steps a,
.submission-card a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.submission-steps a:hover,
.submission-card a:hover {
  color: var(--ink);
}

.topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.topic-tag {
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--paper);
  border: 1px solid var(--line);
  font-weight: 600;
  font-size: 0.9rem;
}

.topic-actions {
  margin-top: 18px;
}

.topics-summary {
  margin-bottom: 20px;
  color: var(--ink-soft);
}

.topic-clusters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}

.topic-cluster {
  background: #fff;
  border-radius: 20px;
  border: 1px solid var(--line);
  padding: 18px 20px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 10px;
}

.topic-cluster h3 {
  font-family: "Fraunces", serif;
  margin: 0;
  font-size: 1.1rem;
}

.topic-cluster p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.topic-mini {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.topic-mini span {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
}

.cfp-themes {
  margin-top: 8px;
  margin-bottom: 18px;
}

.key-themes {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-top: 10px;
  margin-bottom: 18px;
}

.key-themes article {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px;
  display: grid;
  gap: 6px;
  box-shadow: var(--shadow);
}

.key-themes h4 {
  font-family: "Fraunces", serif;
  font-size: 1rem;
}

.key-themes p {
  color: var(--ink-soft);
}

.topic-track {
  background: linear-gradient(140deg, rgba(31, 122, 140, 0.12), rgba(241, 89, 70, 0.12));
  border-style: solid;
}

.updates-list {
  display: grid;
  gap: 12px;
}

.update-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 14px 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
}

.update-item strong {
  display: block;
  margin-bottom: 4px;
}

.updates-actions,
.speakers-actions {
  margin-top: 18px;
}

.organizers {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.organizers article {
  padding: 18px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fff;
  display: grid;
  gap: 8px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.organizers span {
  color: var(--muted);
  font-size: 0.9rem;
}

.committee-grid {
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 12px;
}

@media (min-width: 1200px) {
  .committee-grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

.committee-grid article {
  padding: 12px;
  gap: 4px;
}

.committee-grid .avatar-photo {
  width: 86px;
  height: 86px;
}

.committee-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.committee-member {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  display: grid;
  gap: 8px;
}

.committee-member-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.committee-affiliation {
  color: var(--muted);
  font-size: 0.85rem;
  text-align: right;
}

.committee-focus {
  color: var(--muted);
  font-size: 0.85rem;
}

.venue {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.venue article {
  background: #fff;
  border: 1px solid var(--line);
  padding: 20px;
  border-radius: 16px;
}

.faq {
  display: grid;
  gap: 14px;
}

.faq details {
  background: #fff;
  border-radius: 14px;
  border: 1px solid var(--line);
  padding: 14px 18px;
}

.faq summary {
  font-weight: 600;
  cursor: pointer;
}

.committee-details {
  background: #fff;
  border-radius: 14px;
  border: 1px solid var(--line);
  padding: 14px 18px;
}

.committee-details summary {
  font-weight: 600;
  cursor: pointer;
}

.committee-details[open] {
  box-shadow: 0 14px 26px rgba(15, 23, 42, 0.12);
}

.contact-card {
  background: #fff;
  padding: 24px;
  border-radius: 20px;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.contact-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.footer {
  padding: 30px 6vw 50px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(220px, 1fr) minmax(360px, 1.2fr);
  align-items: flex-start;
  gap: 36px;
}

.footer-brand {
  max-width: 360px;
}

.footer-brand strong {
  color: var(--ink);
  font-size: 1.05rem;
}

.footer-brand p {
  margin: 8px 0 0;
}

.footer-contact a {
  color: var(--accent);
  text-decoration: none;
}

.footer-contact a:hover {
  color: var(--ink);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(180px, 1fr));
  gap: 28px;
}

.footer-links strong {
  color: var(--ink);
}

.footer-links ul {
  list-style: none;
  padding: 0;
  margin: 10px 0 0;
  display: grid;
  gap: 8px;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--ink);
}

.footer-sponsor-block {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
  text-align: left;
  min-width: 200px;
  justify-self: center;
}

.footer-sponsor-block strong {
  margin-top: 0;
  color: var(--ink);
}

.footer-sponsor {
  align-self: center;
}

.footer-sponsor {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}

.footer-sponsor img {
  height: 36px;
  width: auto;
}

.search-overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 60;
}

.search-overlay[hidden] {
  display: none;
}

.search-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(8px);
}

.search-dialog {
  position: relative;
  width: min(720px, 92vw);
  background: #fff;
  border-radius: 18px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 16px;
}

.search-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.search-top h2 {
  font-family: "Fraunces", serif;
  font-size: 1.5rem;
}

.search-close {
  border: 1px solid var(--line);
  background: var(--paper-2);
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.search-close:hover {
  transform: translateY(-1px);
  border-color: rgba(241, 89, 70, 0.55);
  box-shadow: 0 10px 18px rgba(15, 23, 42, 0.12);
}

.search-close:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.search-input-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.search-input {
  flex: 1;
  min-width: 240px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--paper);
  font-size: 1rem;
}

.search-input:focus {
  outline: none;
  border-color: rgba(31, 122, 140, 0.6);
  box-shadow: 0 0 0 4px rgba(31, 122, 140, 0.12);
}

.search-hint {
  color: var(--muted);
  font-size: 0.9rem;
}

.search-results {
  margin-top: 14px;
  display: grid;
  gap: 10px;
  max-height: 52vh;
  overflow: auto;
  padding-right: 4px;
}

.search-result {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper);
  padding: 12px 14px;
}

.search-result a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-weight: 700;
}

.search-result p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.95rem;
}

.search-empty {
  color: var(--muted);
  padding: 10px 2px;
}

[data-animate] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].in-view {
  opacity: 1;
  transform: translateY(0);
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 1100px) {
  .hero {
    grid-template-columns: 1fr;
    background-image: linear-gradient(135deg, rgba(15, 23, 42, 0.04), rgba(241, 89, 70, 0.12));
    background-position: center;
    background-size: cover;
  }

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

  .split {
    grid-template-columns: 1fr;
  }

  .schedule-item,
  .timeline-item {
    grid-template-columns: 1fr;
  }

  .contact-card {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 900px) {
  .nav {
    padding: 12px 6vw;
    justify-content: space-between;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 16px;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    max-height: calc(100vh - 120px);
    overflow: auto;
    z-index: 30;
  }

  .nav-links.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }
}

@media (max-width: 700px) {
  .hero {
    padding: 28px;
    background-position: left top, center 20px;
    background-size: cover, 300px auto;
  }

  .section {
    padding: 64px 0;
  }

  .section.program-intro {
    padding-bottom: 32px;
  }

  .section.program-agenda {
    padding-top: 32px;
  }

  .section.alt {
    padding: 60px 6vw;
  }

  .announcement {
    flex-direction: column;
    text-align: center;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-links {
    width: 100%;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  }
}

@media (max-width: 520px) {
  main {
    padding: 28px 6vw 60px;
  }

  .hero {
    padding: 22px;
    gap: 24px;
    border-radius: 22px;
  }

  .hero h1 {
    font-size: clamp(2.05rem, 7.6vw, 2.6rem);
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .countdown {
    flex-direction: column;
    gap: 12px;
  }

  .signal-card {
    padding: 18px;
  }

  .signal-grid {
    grid-template-columns: 1fr;
  }

  .search-dialog {
    padding: 14px;
  }

  .search-top h2 {
    font-size: 1.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  [data-animate] {
    opacity: 1;
    transform: none;
  }

  .orbit-ring {
    animation: none;
  }

  .btn {
    transition: none;
  }
}