:root {
  --bg: #04070c;
  --bg-2: #0a0f16;

  --panel: rgba(14, 18, 26, 0.78);
  --panel-2: rgba(18, 22, 32, 0.82);

  --border: rgba(255, 255, 255, 0.06);
  --border-strong: rgba(255, 255, 255, 0.12);

  --text: #f6fbff;
  --muted: #a9b8c8;
  --muted-2: #7f8796;

  --accent: #4fd4ff;
  --accent-2: #6be7ff;
  --accent-soft: rgba(79, 212, 255, 0.16);

  --shadow: 0 25px 80px rgba(0, 0, 0, 0.55);
  --radius: 24px;
  --max: 1180px;
  --nav-height: 100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(79, 212, 255, 0.10), transparent 30%),
    radial-gradient(circle at top right, rgba(107, 231, 255, 0.08), transparent 25%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  transition:
    background 0.35s ease,
    color 0.35s ease;
}

body.light-mode {
  --bg: #edf8ff;
  --bg-2: #dceefe;

  --panel: rgba(255, 255, 255, 0.74);
  --panel-2: rgba(248, 252, 255, 0.88);

  --border: rgba(18, 41, 62, 0.10);
  --border-strong: rgba(18, 41, 62, 0.18);

  --text: #0c1a27;
  --muted: #5b6d7f;
  --muted-2: #718294;

  --accent: #0da7df;
  --accent-2: #4fd4ff;

  --shadow: 0 24px 70px rgba(41, 102, 145, 0.14);
}

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

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

/* glow */

.bg-glow {
  position: fixed;
  border-radius: 999px;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.8;
  transition: opacity 0.35s ease, background 0.35s ease;
}

.bg-glow-1 {
  width: 420px;
  height: 420px;
  background: rgba(79, 212, 255, 0.15);
  top: -100px;
  right: -80px;
}

.bg-glow-2 {
  width: 420px;
  height: 420px;
  background: rgba(107, 231, 255, 0.12);
  bottom: -120px;
  left: -80px;
}

body.light-mode .bg-glow-1 {
  background: rgba(79, 212, 255, 0.24);
}

body.light-mode .bg-glow-2 {
  background: rgba(13, 167, 223, 0.16);
}

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

/* nav */

.nav-container {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  display: flex;
  justify-content: center;
  padding: 16px 16px 0;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.nav-bar {
  width: min(1760px, 100%);
  min-height: var(--nav-height);
  display: grid;
  grid-template-columns: auto auto auto;
  align-items: center;
  column-gap: 14px;
  justify-content: space-between;
  padding: 0 28px;
  border-radius: 28px;
  background: rgba(20, 20, 24, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.04);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
  transition:
    background 0.35s ease,
    border-color 0.35s ease,
    box-shadow 0.35s ease;
}

body.light-mode .nav-bar {
  background: rgba(255, 255, 255, 0.68);
  border-color: rgba(18, 41, 62, 0.08);
  box-shadow: 0 18px 40px rgba(49, 96, 136, 0.12);
}

.nav-left {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.nav-center {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.nav-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.logo-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.logo-img {
  height: 64px;
  width: auto;
  object-fit: contain;
  filter: brightness(1.1) drop-shadow(0 0 14px rgba(79, 212, 255, 0.18));
  transition:
    transform 0.22s ease,
    filter 0.35s ease,
    opacity 0.35s ease;
}

.logo-wrap:hover .logo-img {
  transform: translateY(-1px);
}

body.light-mode .logo-img {
  filter: brightness(0.9) contrast(1.15) drop-shadow(0 0 10px rgba(13, 167, 223, 0.10));
}

.nav-ticket-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 26px;
  border-radius: 999px;
  background: linear-gradient(135deg, #4fd4ff, #6be7ff);
  color: #04222c;
  font-weight: 800;
  font-size: 0.98rem;
  letter-spacing: -0.01em;
  box-shadow: 0 14px 40px rgba(79, 212, 255, 0.30);
  transition:
    transform 0.2s ease,
    box-shadow 0.25s ease,
    opacity 0.25s ease;
}

.nav-ticket-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 50px rgba(79, 212, 255, 0.44);
}








/* hero */

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  padding: 18px 20px 10px;
  text-align: center;
}

.hero-flyer-wrap {
  position: relative;
  width: 100%;
  max-width: 720px;
  display: flex;
  justify-content: center;
  align-items: center;
  isolation: isolate;
}

.flyer-shimmer {
  position: absolute;
  inset: 8% 10%;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(
      115deg,
      transparent 0%,
      rgba(111, 234, 255, 0.00) 28%,
      rgba(111, 234, 255, 0.12) 42%,
      rgba(255, 255, 255, 0.15) 50%,
      rgba(111, 234, 255, 0.12) 58%,
      rgba(111, 234, 255, 0.00) 72%,
      transparent 100%
    );
  filter: blur(26px);
  transform: translateX(-48%) skewX(-18deg);
  animation: flyerShimmer 7s ease-in-out infinite;
}

@keyframes flyerShimmer {
  0% {
    opacity: 0.18;
    transform: translateX(-50%) skewX(-18deg);
  }
  50% {
    opacity: 0.42;
    transform: translateX(50%) skewX(-18deg);
  }
  100% {
    opacity: 0.18;
    transform: translateX(-50%) skewX(-18deg);
  }
}

.flyer-bg-blur {
  position: absolute;
  inset: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 0;
  transform: scale(1.08);
  opacity: 0.5;
  filter: blur(45px) saturate(1.15);
  pointer-events: none;
}

.flyer-bg-blur img {
  width: 100%;
  max-width: 560px;
  border-radius: 30px;
}

.flyer {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 640px;
}

.flyer::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: -30px;
  width: 70%;
  height: 60px;
  background: radial-gradient(circle, rgba(79, 212, 255, 0.35), transparent 70%);
  filter: blur(30px);
  z-index: -1;
}

.flyer img {
  border-radius: 22px;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.72);
  transition: transform 0.3s ease;
}

.flyer img:hover {
  transform: scale(1.02);
}

/* hero text */

.hero-kicker {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.event-info h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 4vw, 2.7rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.hero-subtext {
  margin-bottom: 0;
  color: var(--muted);
}

/* sections */

.details {
  padding: 30px 0;
}

/* event card */

.section-card {
  position: relative;
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
  background: linear-gradient(180deg, rgba(17, 19, 29, 0.86), rgba(11, 13, 21, 0.86));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 40px 36px;
  text-align: center;
  overflow: hidden;
  transition:
    background 0.35s ease,
    border-color 0.35s ease,
    box-shadow 0.35s ease;
}

body.light-mode .section-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(244, 249, 255, 0.80));
}

.card-highlight-line {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(520px, 72%);
  height: 1px;
  background: linear-gradient(
    90deg,
    rgba(79, 212, 255, 0),
    rgba(79, 212, 255, 0.95),
    rgba(255, 255, 255, 0.85),
    rgba(79, 212, 255, 0.95),
    rgba(79, 212, 255, 0)
  );
  box-shadow: 0 0 22px rgba(79, 212, 255, 0.55);
}

/* title block */

.card-top {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}

.section-label {
  color: #6be7ff;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-card h2 {
  margin: 0 0 14px;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
}

.card-intro {
  color: var(--muted);
  margin: 0 auto 20px;
  max-width: 760px;
  line-height: 1.7;
}

/* info grid */

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 26px;
  justify-items: center;
}

.info-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  width: 100%;
  text-align: center;
  transition:
    background 0.35s ease,
    border-color 0.35s ease;
}

body.light-mode .info-item {
  background: rgba(255, 255, 255, 0.42);
  border-color: rgba(18, 41, 62, 0.08);
}

.info-item-label {
  color: var(--muted-2);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.info-item-value {
  font-weight: 700;
}

/* pills */

.notice-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
  justify-content: center;
  align-items: center;
  width: 100%;
}

.notice-pill {
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  backdrop-filter: blur(6px);
  transition:
    background 0.35s ease,
    border-color 0.35s ease,
    color 0.35s ease;
}

body.light-mode .notice-pill {
  background: rgba(255, 255, 255, 0.50);
  border-color: rgba(18, 41, 62, 0.09);
}

.warning-text {
  margin-top: 16px;
  font-size: 0.95rem;
  color: var(--muted);
}

/* responsive */

@media (max-width: 900px) {
  :root {
    --nav-height: 88px;
  }

  .nav-bar {
    border-radius: 24px;
    grid-template-columns: auto 1fr auto;
    gap: 12px;
  }

  .logo-img {
    height: 36px;
  }

  .nav-ticket-btn {
    min-height: 46px;
    padding: 0 18px;
    font-size: 0.92rem;
  }

 
}

@media (max-width: 640px) {
  :root {
    --nav-height: 74px;
  }

  .nav-container {
    padding: 12px 12px 0;
  }

  .nav-bar {
    padding: 0 14px;
    border-radius: 22px;
    grid-template-columns: auto 1fr auto;
    gap: 10px;
  }

  .logo-img {
  height: 42px;
}

  .nav-ticket-btn {
    min-height: 40px;
    padding: 0 14px;
    font-size: 0.82rem;
    white-space: nowrap;
  }


  .hero {
    gap: 22px;
    padding: 8px 14px;
  }

  .flyer-bg-blur {
    transform: scale(1.03);
    filter: blur(28px) saturate(1.1);
    opacity: 0.42;
  }

  .flyer-bg-blur img {
    max-width: 100%;
    border-radius: 22px;
  }

  .flyer-shimmer {
    inset: 10% 6%;
    filter: blur(20px);
  }

  .flyer img {
    border-radius: 18px;
  }

  .event-info h1 {
    font-size: 1.55rem;
    line-height: 1.1;
    margin-bottom: 10px;
  }

  .hero-subtext {
    font-size: 0.95rem;
  }

  .section-card {
    width: calc(100% - 24px);
    padding: 24px 18px;
    border-radius: 20px;
  }

  .card-highlight-line {
    width: 82%;
  }

  .section-card h2 {
    font-size: 1.5rem;
  }

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

  .info-item {
    padding: 16px 14px;
    border-radius: 16px;
  }

  .notice-pill {
    font-size: 0.84rem;
    padding: 9px 13px;
  }
}