:root {
  --navy: #0e2841;
  --ink: #071621;
  --teal: #156082;
  --cyan: #0f9ed5;
  --orange: #e97132;
  --green: #196b24;
  --fog: #e8eef3;
  --muted: #6d8294;
  --line: rgba(14, 40, 65, 0.12);
  --card: rgba(255, 255, 255, 0.72);
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "Figtree", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--navy);
  background:
    radial-gradient(900px 480px at 100% 0%, rgba(233, 113, 50, 0.16), transparent 55%),
    radial-gradient(700px 420px at 0% 15%, rgba(15, 158, 213, 0.14), transparent 50%),
    linear-gradient(180deg, #f4f8fb 0%, #eef4f8 40%, #f7fafc 100%);
  line-height: 1.55;
}

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

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

.container {
  width: min(1080px, calc(100% - 2.5rem));
  margin-inline: auto;
}

.container.narrow {
  width: min(860px, calc(100% - 2.5rem));
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
  background: rgba(244, 248, 251, 0.78);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.site-header.scrolled {
  border-bottom-color: var(--line);
  background: rgba(244, 248, 251, 0.92);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.logo img {
  width: 36px;
  height: 36px;
  object-fit: cover;
  border-radius: 8px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.15rem;
}

.nav a {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.95rem;
}

.nav a:hover {
  color: var(--navy);
}

.nav-cta {
  color: #fff !important;
  background: var(--orange);
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 10px;
  padding: 10px;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
}

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

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 7rem 1.25rem 4rem;
  overflow: clip;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(8px);
  animation: float 12s ease-in-out infinite alternate;
}

.orb-a {
  width: min(48vw, 420px);
  height: min(48vw, 420px);
  right: -6%;
  top: 12%;
  background: radial-gradient(circle at 35% 35%, rgba(233, 113, 50, 0.55), rgba(233, 113, 50, 0.05) 70%);
}

.orb-b {
  width: min(42vw, 360px);
  height: min(42vw, 360px);
  left: -8%;
  bottom: 8%;
  background: radial-gradient(circle at 60% 40%, rgba(15, 158, 213, 0.45), rgba(21, 96, 130, 0.05) 70%);
  animation-delay: -4s;
}

.grid-wash {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(14, 40, 65, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14, 40, 65, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
  animation: gridPulse 10s ease-in-out infinite alternate;
}

.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 820px;
  animation: rise 0.9s ease both;
}

.hero-badge {
  width: clamp(120px, 22vw, 180px);
  height: auto;
  margin: 0 auto 1.2rem;
  filter: drop-shadow(0 18px 40px rgba(14, 40, 65, 0.25));
  animation: badgeIn 1.1s ease both;
}

.kicker {
  margin: 0 0 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--orange);
}

.brand {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(3rem, 10vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.95;
  color: var(--navy);
}

.title {
  margin: 1rem auto 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.4vw, 1.55rem);
  font-weight: 650;
  line-height: 1.3;
  max-width: 28ch;
}

.lede,
.section-lead {
  margin: 0 auto 1.4rem;
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.2rem;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

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

.btn-primary:hover {
  background: #d45f22;
}

.btn-ghost {
  border-color: rgba(14, 40, 65, 0.2);
  background: rgba(255, 255, 255, 0.55);
}

.btn-ghost:hover {
  border-color: var(--teal);
}

.section {
  padding: 5rem 0;
}

.eyebrow {
  margin: 0 0 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--teal);
}

.section h2 {
  margin: 0 0 0.8rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.35rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  max-width: 18ch;
}

.host-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
  margin-top: 2rem;
}

.host-card {
  padding: 1.2rem 1.15rem;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--card);
  backdrop-filter: blur(8px);
  display: grid;
  gap: 0.35rem;
}

.host-card strong {
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.host-card span {
  color: var(--muted);
  font-size: 0.92rem;
}

.host-card.accent {
  background: linear-gradient(145deg, rgba(233, 113, 50, 0.14), rgba(15, 158, 213, 0.12));
  border-color: rgba(233, 113, 50, 0.28);
}

.topic-grid {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
}

.topic-grid li {
  padding: 1.15rem 1.2rem;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: 0 12px 30px rgba(14, 40, 65, 0.05);
  font-weight: 600;
  line-height: 1.4;
  position: relative;
  padding-left: 1.55rem;
}

.topic-grid li::before {
  content: "";
  position: absolute;
  left: 0.75rem;
  top: 1.4rem;
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: var(--cyan);
}

.committee-block {
  margin-top: 1.8rem;
  padding: 1.5rem;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.8);
}

.committee-block h3 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.role-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.role-grid article {
  padding: 1rem;
  border-radius: 14px;
  background: rgba(21, 96, 130, 0.06);
}

.role-grid span {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  color: var(--teal);
  margin-bottom: 0.4rem;
}

.role-grid p,
.members {
  margin: 0;
  color: var(--navy);
  font-size: 0.98rem;
}

.members {
  color: var(--muted);
}

.members strong {
  color: var(--navy);
}

.members.flat {
  color: var(--navy);
  line-height: 1.7;
}

.timeline {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.9rem;
  counter-reset: step;
}

.timeline li {
  position: relative;
  min-height: 10rem;
  padding: 1.25rem 1.1rem;
  border-radius: 18px;
  background: var(--navy);
  color: #f4f8fb;
  overflow: hidden;
}

.timeline li::before {
  counter-increment: step;
  content: "0" counter(step);
  position: absolute;
  right: 0.9rem;
  top: 0.85rem;
  font-family: var(--font-display);
  color: rgba(255, 255, 255, 0.22);
  font-size: 0.9rem;
}

.timeline time {
  display: block;
  color: var(--orange);
  font-family: var(--font-display);
  font-weight: 700;
  margin-bottom: 0.7rem;
}

.timeline strong {
  font-size: 1.05rem;
  line-height: 1.35;
}

.contact-panel {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.5rem;
  padding: 2rem;
  border-radius: 24px;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(15, 158, 213, 0.12), transparent 42%),
    linear-gradient(180deg, #fff, #f3f8fb);
}

.brand-mini {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.contacts {
  list-style: none;
  margin: 0;
  padding: 0;
}

.contacts li {
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
}

.contacts span {
  display: block;
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 0.2rem;
}

.contacts a {
  font-weight: 650;
  color: var(--teal);
}

.contacts a:hover {
  color: var(--orange);
}

.site-footer {
  padding: 1.2rem 0 2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes badgeIn {
  from {
    opacity: 0;
    transform: scale(0.92) rotate(-4deg);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes float {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(12px, -18px, 0);
  }
}

@keyframes gridPulse {
  from {
    opacity: 0.45;
  }
  to {
    opacity: 0.85;
  }
}

@media (max-width: 900px) {
  .host-row,
  .topic-grid,
  .role-grid,
  .timeline,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .nav {
    position: fixed;
    inset: 64px 1rem auto;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0.3rem;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid var(--line);
    border-radius: 14px;
  }

  .nav.open {
    display: flex;
  }

  .nav a {
    padding: 0.7rem 0.8rem;
    border-radius: 10px;
  }

  .nav-cta {
    text-align: center;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .timeline li {
    min-height: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}