:root {
  color-scheme: dark;
  --midnight: #08090f;
  --midnight-2: #111521;
  --ink: #17100a;
  --gold: #c9a84c;
  --gold-2: #f0cf74;
  --cream: #f5f0e8;
  --muted: #9a9590;
  --teal: #64d2c8;
  --rose: #e67461;
  --line: rgba(245, 240, 232, 0.08);
  --glass: rgba(255, 255, 255, 0.04);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.18);
  --radius: 12px;
  --max: 1180px;
  --font-heading: "DM Serif Display", Georgia, serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(100, 210, 200, 0.13), transparent 36rem),
    radial-gradient(circle at 82% 12%, rgba(230, 116, 97, 0.13), transparent 30rem),
    var(--midnight);
  color: var(--cream);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

body.modal-open {
  overflow: hidden;
}

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

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

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

main {
  position: relative;
  z-index: 1;
}

.section {
  position: relative;
  padding: clamp(4.5rem, 9vw, 8rem) clamp(1rem, 4vw, 2rem);
}

.section-heading {
  width: min(var(--max), 100%);
  margin: 0 auto clamp(2rem, 5vw, 4rem);
}

.section-heading h2,
.venue h2,
.register h2,
.modal-panel h2 {
  max-width: 820px;
  margin: 0;
  color: var(--cream);
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  line-height: 1.1;
  letter-spacing: 0.01em;
  font-weight: 400;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.button {
  min-height: 3rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0.75rem 1.5rem;
  color: var(--cream);
  font-weight: 500;
  letter-spacing: 0.02em;
  font-size: 0.9rem;
  transition: transform 200ms ease, border-color 200ms ease, background 200ms ease, color 200ms ease, box-shadow 200ms ease;
}

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

.button-primary {
  background: linear-gradient(135deg, var(--gold), #9f7930);
  color: #120d07;
  box-shadow: 0 4px 16px rgba(201, 168, 76, 0.2);
}

.button-primary:hover {
  box-shadow: 0 6px 24px rgba(201, 168, 76, 0.3);
}

.button-ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(10px);
}

.site-header {
  position: fixed;
  top: 1rem;
  left: 50%;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  width: min(calc(100% - 2rem), 1020px);
  min-height: 3.5rem;
  padding: 0.4rem;
  border: 1px solid rgba(245, 240, 232, 0.06);
  border-radius: var(--radius);
  background: rgba(8, 9, 15, 0.65);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(16px);
  transform: translateX(-50%);
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}

.brand-mark,
.nav-cta {
  border-radius: var(--radius);
}

.brand-mark {
  display: grid;
  width: 2.8rem;
  height: 2.8rem;
  place-items: center;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: 0.85rem;
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: clamp(0.6rem, 2vw, 1.4rem);
  padding: 0 1rem;
  color: rgba(245, 240, 232, 0.55);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.01em;
}

.site-nav a {
  transition: color 180ms ease;
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.8rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 0 1.1rem;
  background: rgba(255, 255, 255, 0.06);
  color: var(--cream);
  font-weight: 500;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}

.menu-toggle {
  display: none;
  width: 2.8rem;
  height: 2.8rem;
  padding: 0;
  border: 1px solid rgba(245, 240, 232, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.05);
  color: var(--cream);
}

.menu-toggle span {
  display: block;
  width: 1rem;
  height: 1px;
  margin: 0.24rem auto;
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.menu-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(0.25rem) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-0.25rem) rotate(-45deg);
}

.mobile-nav-shell {
  position: fixed;
  inset: 0;
  z-index: 19;
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
}

.mobile-nav-shell.is-open {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 9, 15, 0.66);
  backdrop-filter: blur(10px);
}

.mobile-nav {
  position: absolute;
  top: 5.1rem;
  right: 0.75rem;
  left: 0.75rem;
  display: grid;
  gap: 0.35rem;
  padding: 0.8rem;
  border: 1px solid rgba(245, 240, 232, 0.08);
  border-radius: calc(var(--radius) + 4px);
  background: rgba(11, 14, 22, 0.95);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  transform: translateY(-0.5rem);
  transition: transform 180ms ease;
}

.mobile-nav-shell.is-open .mobile-nav {
  transform: translateY(0);
}

.mobile-nav a {
  display: block;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  color: rgba(245, 240, 232, 0.88);
  background: rgba(255, 255, 255, 0.03);
  font-size: 0.95rem;
}

.mobile-nav a:last-child {
  border-color: rgba(201, 168, 76, 0.28);
  background: linear-gradient(135deg, rgba(201, 168, 76, 0.18), rgba(201, 168, 76, 0.06));
}

.site-footer {
  display: grid;
  grid-template-columns: 1.4fr auto auto;
  gap: 2rem;
  align-items: end;
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer p {
  margin: 0;
}

.footer-kicker {
  color: var(--cream);
  font-family: var(--font-heading);
  font-size: 1.5rem;
}

.footer-links,
.footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  font-weight: 400;
}

.footer-links a,
.footer-contact a {
  color: rgba(245, 240, 232, 0.6);
  transition: color 200ms ease;
}

.footer-links a:hover,
.footer-contact a:hover {
  color: var(--cream);
}

.footer-closing {
  grid-column: 1 / -1;
  margin: 1rem 0 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  color: rgba(245, 240, 232, 0.3);
  font-size: 0.8rem;
  font-weight: 300;
  letter-spacing: 0.05em;
}

/* Hero gold accent line */
.hero-accent {
  width: 48px;
  height: 2px;
  margin: 1.2rem 0 0;
  background: linear-gradient(90deg, var(--gold), rgba(201, 168, 76, 0));
  border-radius: 2px;
}

/* Section alternation for visual rhythm */
.section-alt {
  background: var(--midnight-2);
}

.notice-band {
  width: min(var(--max), calc(100% - 2rem));
  margin: 6.2rem auto -3rem;
  border: 1px solid rgba(230, 116, 97, 0.35);
  border-radius: var(--radius);
  padding: 1rem;
  background: rgba(230, 116, 97, 0.1);
  color: var(--cream);
}

.notice-band p {
  margin: 0;
}

@media (max-width: 820px) {
  .site-header {
    grid-template-columns: auto auto;
    width: min(calc(100% - 1rem), 720px);
  }

  .site-nav {
    display: none;
  }

  .menu-toggle {
    display: grid;
    place-items: center;
  }

  .nav-cta {
    min-width: 6.8rem;
  }

  .site-footer {
    grid-template-columns: 1fr;
    align-items: start;
  }
}

@media (max-width: 560px) {
  .section {
    padding-inline: 1rem;
  }

  .site-header {
    top: 0.5rem;
  }

  .header-actions {
    gap: 0.5rem;
  }

  .nav-cta {
    padding-inline: 0.9rem;
    font-size: 0.8rem;
  }

  .button {
    width: 100%;
  }
}