:root {
  --plum-950: #18091f;
  --plum-900: #2a0d3b;
  --plum-800: #40105f;
  --plum-650: #74319b;
  --gold-500: #d7b253;
  --gold-300: #f5d47a;
  --rose-200: #f5d4dc;
  --teal-500: #1f9f9a;
  --ink: #17121d;
  --muted: #675f70;
  --line: #e9e1ef;
  --paper: #fffaf2;
  --white: #ffffff;
  --shadow: 0 24px 80px rgba(24, 9, 31, 0.2);
  --radius: 8px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

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

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -5rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  color: var(--plum-950);
  background: var(--gold-300);
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 1rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem max(1rem, calc((100vw - var(--max-width)) / 2));
  color: var(--white);
  background: rgba(24, 9, 31, 0.9);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.7rem;
  height: 2.7rem;
  place-items: center;
  color: var(--plum-950);
  background: linear-gradient(135deg, var(--gold-300), var(--gold-500));
  border-radius: 50%;
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.78rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.92rem;
  font-weight: 700;
}

.site-nav a {
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--gold-300);
}

.nav-cta {
  padding: 0.65rem 0.9rem;
  color: var(--plum-950) !important;
  background: var(--gold-300);
  border-radius: 999px;
}

.nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius);
}

.nav-toggle span:not(.sr-only) {
  display: block;
  width: 1.25rem;
  height: 2px;
  margin: 0.25rem auto;
  background: var(--white);
}

.section {
  padding: clamp(4rem, 7vw, 7rem) 0;
}

.section-dark,
.section-deep {
  color: var(--white);
  background:
    radial-gradient(circle at 20% 20%, rgba(245, 212, 122, 0.2), transparent 24rem),
    linear-gradient(135deg, var(--plum-950), var(--plum-800) 58%, #0f2830);
}

.section-light {
  background: linear-gradient(180deg, var(--paper), #ffffff);
}

.section-white {
  background: var(--white);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(4.5rem, 8vw, 8rem) 0 clamp(4rem, 7vw, 7rem);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  inset: auto -20% -30% -20%;
  height: 28rem;
  background: linear-gradient(90deg, rgba(245, 212, 122, 0.55), rgba(31, 159, 154, 0.3), rgba(116, 49, 155, 0.42));
  filter: blur(76px);
  opacity: 0.75;
}

.hero-grid,
.split,
.registration-layout,
.lodging-grid,
.mission-grid,
.sponsor-layout,
.contact-grid,
.footer-grid {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.hero-grid {
  position: relative;
  grid-template-columns: minmax(0, 1.06fr) minmax(300px, 0.74fr);
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--gold-300);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
}

h1,
h2 {
  font-family: "Playfair Display", Georgia, serif;
}

h1 {
  max-width: 11ch;
  font-size: clamp(3.1rem, 8vw, 6.8rem);
}

h2 {
  font-size: clamp(2.1rem, 5vw, 4.2rem);
}

h3 {
  font-size: clamp(1.12rem, 2vw, 1.45rem);
}

.hero-lede,
.section-heading p,
.section-intro p {
  color: color-mix(in srgb, currentColor 74%, transparent);
  font-size: clamp(1.03rem, 1.7vw, 1.2rem);
}

.hero-lede {
  max-width: 46rem;
  margin: 1.25rem 0;
}

blockquote {
  max-width: 38rem;
  margin: 1.4rem 0 0;
  padding-left: 1rem;
  color: var(--gold-300);
  border-left: 3px solid var(--gold-300);
  font-family: "Playfair Display", Georgia, serif;
  font-size: 1.25rem;
}

blockquote cite {
  color: rgba(255, 255, 255, 0.74);
  font-family: Inter, sans-serif;
  font-size: 0.95rem;
  font-style: normal;
}

.hero-actions,
.partner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.82rem 1.12rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--plum-950);
  background: linear-gradient(135deg, var(--gold-300), var(--gold-500));
  box-shadow: 0 14px 34px rgba(215, 178, 83, 0.28);
}

.button-secondary {
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.26);
}

.section-light .button-secondary,
.section-white .button-secondary {
  color: var(--plum-800);
  background: var(--white);
  border-color: var(--line);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
  max-width: 43rem;
  margin: 2.3rem 0 0;
}

.hero-stats div {
  padding: 1rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
}

.hero-stats dt {
  color: var(--gold-300);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
}

.hero-stats dd {
  margin: 0.4rem 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.87rem;
}

.hero-card {
  overflow: hidden;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: top center;
}

.event-card-body {
  padding: 1.25rem;
}

.card-label,
.fine-print {
  margin: 0 0 0.35rem;
  color: var(--gold-300);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.event-card-body p {
  margin: 0.5rem 0 1rem;
  color: rgba(255, 255, 255, 0.75);
}

.text-link {
  color: var(--gold-300);
  font-weight: 800;
}

.conversion-strip {
  color: var(--plum-950);
  background: linear-gradient(90deg, var(--gold-300), #fff2bd);
}

.strip-grid {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 1rem;
  align-items: center;
  padding: 0.85rem 0;
}

.strip-grid p {
  margin: 0;
}

.strip-grid a {
  font-weight: 900;
}

.split,
.registration-layout,
.lodging-grid,
.mission-grid,
.sponsor-layout,
.contact-grid {
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1fr);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 2.4rem;
}

.audience-grid,
.experience-grid,
.speaker-grid,
.mission-cards {
  display: grid;
  gap: 1rem;
}

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

.audience-grid article,
.feature-card,
.pricing-card,
.info-panel,
.mission-card,
.contact-card {
  padding: 1.35rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 14px 40px rgba(24, 9, 31, 0.07);
}

.audience-grid p,
.feature-card p,
.speaker-card p,
.mission-card p,
.info-panel p {
  margin: 0.65rem 0 0;
  color: var(--muted);
}

.experience-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-card {
  min-height: 15rem;
}

.icon {
  display: inline-grid;
  width: 2.6rem;
  height: 2.6rem;
  margin-bottom: 1.4rem;
  place-items: center;
  color: var(--plum-950);
  background: var(--gold-300);
  border-radius: 50%;
  font-weight: 900;
}

.section-deep .section-heading,
.section-deep .section-intro {
  color: var(--white);
}

.speaker-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.speaker-card {
  min-height: 9.25rem;
  padding: 1.35rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.06));
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
}

.speaker-card h3 {
  color: var(--white);
}

.speaker-card p {
  color: var(--gold-300);
  font-weight: 800;
}

.pricing-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 250, 242, 0.96)),
    linear-gradient(135deg, var(--gold-300), var(--rose-200));
}

.price-list {
  display: grid;
  gap: 0.7rem;
  padding: 0;
  margin: 1rem 0;
  list-style: none;
}

.price-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--line);
}

.price-list strong {
  color: var(--plum-800);
  font-size: 1.2rem;
}

.fine-print {
  color: var(--muted);
  text-transform: none;
}

.mission-cards {
  grid-template-columns: 1fr;
}

.mission-card {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.94);
}

.partner-actions {
  margin-top: 0;
  align-self: center;
  justify-content: flex-start;
}

.faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.faq-list {
  display: grid;
  gap: 0.8rem;
}

details {
  padding: 1.1rem 1.2rem;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

summary {
  cursor: pointer;
  color: var(--plum-800);
  font-weight: 900;
}

details p {
  margin: 0.8rem 0 0;
  color: var(--muted);
}

.contact-card {
  display: grid;
  gap: 0.75rem;
  color: var(--ink);
}

.contact-card a {
  overflow-wrap: anywhere;
  color: var(--plum-800);
  font-weight: 900;
}

.site-footer {
  padding: 2.5rem 0 5rem;
  color: rgba(255, 255, 255, 0.74);
  background: var(--plum-950);
}

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

.site-footer strong {
  color: var(--white);
}

.site-footer p {
  margin: 0.35rem 0 0;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
}

.mobile-cta {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 45;
  display: none;
}

.mobile-cta a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.1rem;
  padding: 0.8rem 1.15rem;
  color: var(--plum-950);
  background: var(--gold-300);
  border-radius: 999px;
  box-shadow: var(--shadow);
  font-weight: 900;
  text-decoration: none;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms ease, transform 600ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid var(--teal-500);
  outline-offset: 4px;
}

@media (max-width: 980px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: 1rem;
    left: 1rem;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 1rem;
    background: var(--plum-950);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 0.65rem;
  }

  .hero-grid,
  .split,
  .registration-layout,
  .lodging-grid,
  .mission-grid,
  .sponsor-layout,
  .contact-grid,
  .faq-layout,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

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

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

@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .site-header {
    padding-inline: 1rem;
  }

  .brand strong {
    max-width: 10rem;
    line-height: 1.1;
  }

  .hero {
    padding-top: 3.6rem;
  }

  h1 {
    font-size: clamp(3rem, 16vw, 4.5rem);
  }

  .hero-stats,
  .audience-grid,
  .experience-grid,
  .speaker-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions,
  .partner-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .hero-card img {
    aspect-ratio: 3 / 4;
  }

  .mobile-cta {
    display: block;
    right: 0.75rem;
    left: 0.75rem;
  }

  .mobile-cta a {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

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