:root {
  --bg: #07111f;
  --bg-deep: #030814;
  --bg-elevated: rgba(8, 17, 31, 0.78);
  --panel: rgba(11, 23, 39, 0.82);
  --panel-strong: rgba(8, 18, 33, 0.9);
  --panel-soft: rgba(13, 27, 47, 0.68);
  --text: #f5f9ff;
  --muted: #b7c5db;
  --muted-strong: #d7e2f3;
  --line: rgba(132, 194, 255, 0.16);
  --line-strong: rgba(135, 219, 255, 0.28);
  --primary: #81dcff;
  --primary-strong: #3ebdff;
  --secondary: #8df5ff;
  --accent: #6b8cff;
  --accent-soft: #183453;
  --success: #8df7d7;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.48);
  --shadow-soft: 0 24px 48px rgba(0, 8, 20, 0.28);
  --shadow-neon: 0 0 0 1px rgba(129, 220, 255, 0.1), 0 0 36px rgba(62, 189, 255, 0.08);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --container: 1180px;
  --header-offset: 108px;
  --transition: 220ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "Microsoft YaHei UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 14%, rgba(61, 136, 255, 0.16), transparent 0 28%),
    radial-gradient(circle at 82% 18%, rgba(89, 236, 255, 0.12), transparent 0 24%),
    radial-gradient(circle at 50% 120%, rgba(14, 70, 123, 0.24), transparent 0 34%),
    linear-gradient(180deg, #030814 0%, #07101c 42%, #050c16 100%);
}

body.nav-open {
  overflow: hidden;
}

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

button,
input {
  font: inherit;
}

button {
  border: 0;
  background: none;
}

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

.skip-link,
.sr-only {
  position: absolute;
}

.skip-link {
  left: 1rem;
  top: -3rem;
  z-index: 60;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  background: #ffffff;
  color: #111827;
  transition: top var(--transition);
}

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

.sr-only {
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.page-shell {
  position: relative;
  overflow: clip;
}

.page-shell::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at center, rgba(143, 212, 255, 0.04), transparent 60%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.015), transparent 24%, transparent 78%, rgba(255, 255, 255, 0.012));
  pointer-events: none;
}

.ambient,
.grid-overlay,
.scanline-overlay {
  pointer-events: none;
  position: fixed;
  inset: 0;
}

.ambient-a {
  background: radial-gradient(circle at 18% 8%, rgba(89, 181, 255, 0.16), transparent 34%);
  animation: drift-a 18s ease-in-out infinite alternate;
}

.ambient-b {
  background: radial-gradient(circle at 88% 12%, rgba(93, 255, 244, 0.1), transparent 26%);
  animation: drift-b 22s ease-in-out infinite alternate;
}

.ambient-c {
  background:
    radial-gradient(circle at 50% 32%, rgba(115, 173, 255, 0.08), transparent 18%),
    radial-gradient(circle at 64% 74%, rgba(40, 96, 160, 0.12), transparent 26%);
  mix-blend-mode: screen;
}

.grid-overlay {
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.78), transparent 92%);
  animation: grid-pulse 14s ease-in-out infinite;
}

.scanline-overlay {
  opacity: 0.05;
  background-image: linear-gradient(180deg,
      transparent 0,
      transparent 3px,
      rgba(255, 255, 255, 0.05) 4px,
      transparent 5px);
  background-size: 100% 7px;
  mix-blend-mode: soft-light;
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
}

.section {
  position: relative;
  padding: 5rem 0;
  scroll-margin-top: var(--header-offset);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 1rem 0 0;
}

.site-nav {
  position: relative;
  width: min(calc(100% - 2rem), var(--container));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.9rem 1.2rem;
  border: 1px solid rgba(143, 209, 255, 0.12);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015)),
    rgba(7, 14, 26, 0.72);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-soft), 0 1px 0 rgba(255, 255, 255, 0.04);
}

.site-nav::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(120deg, rgba(150, 228, 255, 0.18), transparent 42%, rgba(98, 143, 255, 0.22));
  mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  mask-composite: exclude;
  pointer-events: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  min-width: 3rem;
  height: 3rem;
  padding: 0 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  color: #ffffff;
  font-family: "Bebas Neue", sans-serif;
  font-size: 1.8rem;
  letter-spacing: 0.08em;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.03)),
    linear-gradient(135deg, #0f2943, #214f7a 48%, #79c9ff);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.24), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.brand-copy {
  color: #eef5ff;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-links a {
  color: #d9e5f7;
  transition:
    color var(--transition),
    opacity var(--transition),
    background-color var(--transition);
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a.is-active {
  color: #ffffff;
}

.nav-cta,
.button,
.footer-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 999px;
}

.nav-cta {
  padding: 0.75rem 1.15rem;
  color: #02101c !important;
  font-weight: 800;
  background:
    linear-gradient(135deg, #f8fdff, #b9efff 38%, #7adfff 72%, #65bcff);
  box-shadow:
    0 12px 26px rgba(78, 169, 255, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.7);
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.28);
}

.nav-toggle {
  display: none;
  min-width: 44px;
  min-height: 44px;
  padding: 0.6rem;
  border-radius: 12px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px auto;
  background: var(--text);
  transition: transform var(--transition), opacity var(--transition);
}

.hero {
  padding-top: 4rem;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 2rem 0 auto;
  height: 600px;
  background:
    radial-gradient(circle at 18% 22%, rgba(126, 198, 255, 0.2), transparent 0 30%),
    radial-gradient(circle at 78% 18%, rgba(75, 255, 240, 0.1), transparent 0 26%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 70%);
  pointer-events: none;
}

.hero-layout,
.arena-layout,
.community-layout,
.join-layout {
  display: grid;
  gap: 2rem;
}

.hero-layout {
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  align-items: center;
  min-height: calc(100vh - 8rem);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 1rem;
  padding: 0.48rem 0.86rem;
  border: 1px solid rgba(143, 226, 255, 0.2);
  border-radius: 999px;
  color: var(--secondary);
  background: rgba(117, 205, 255, 0.07);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 0.52rem;
  height: 0.52rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--secondary), var(--accent));
  box-shadow: 0 0 14px rgba(105, 208, 255, 0.46);
}

.hero h1,
.section-heading h2,
.arena-panel h2,
.join-layout h2 {
  margin: 0;
  font-family: "Bebas Neue", "Noto Sans SC", sans-serif;
  letter-spacing: 0.035em;
  line-height: 0.92;
}

.hero h1 {
  font-size: clamp(4.2rem, 9vw, 7rem);
  text-shadow:
    0 0 26px rgba(129, 220, 255, 0.1),
    0 24px 48px rgba(0, 0, 0, 0.3);
}

.hero h1 span {
  display: block;
}

.hero h1 span+span {
  margin-top: 0.06em;
}

.hero-lead,
.section-heading p,
.arena-panel p,
.join-layout p,
.info-card p,
.quote-card p,
.faq-list p,
.site-footer p {
  color: var(--muted);
  line-height: 1.82;
}

.hero-lead {
  max-width: 39rem;
  margin: 1.35rem 0 0;
  font-size: 1.06rem;
}

.hero-copy {
  position: relative;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
}

.hero-badges li,
.feature-tags li {
  padding: 0.66rem 0.95rem;
  border: 1px solid rgba(145, 205, 255, 0.14);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015)),
    rgba(10, 19, 33, 0.74);
  color: #eaf3ff;
  font-size: 0.92rem;
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 2.15rem 0 2.35rem;
}

.button {
  min-height: 52px;
  padding: 0.92rem 1.42rem;
  font-weight: 800;
  cursor: pointer;
  transition:
    transform var(--transition),
    background-color var(--transition),
    border-color var(--transition),
    color var(--transition),
    box-shadow var(--transition);
}

.button:hover,
.button:focus-visible,
.nav-cta:hover,
.nav-cta:focus-visible,
.footer-link:hover,
.footer-link:focus-visible {
  transform: translateY(-1px);
}

.button-primary {
  color: #03101e;
  background:
    linear-gradient(135deg, #f8fdff, #c5f4ff 34%, #82dcff 72%, #59bfff);
  box-shadow:
    0 16px 36px rgba(76, 160, 255, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.82);
}

.button-secondary {
  border: 1px solid rgba(143, 215, 255, 0.18);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015)),
    rgba(9, 18, 30, 0.72);
  color: #ecf4ff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.hero-stats,
.feature-tags,
.leaderboard {
  list-style: none;
  padding: 0;
  margin: 0;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.hero-stats li,
.hero-card,
.info-card,
.quote-card,
.board-card,
.join-layout,
.faq-list details {
  border: 1px solid rgba(140, 196, 255, 0.1);
  background: var(--bg-elevated);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-soft), var(--shadow-neon);
}

.hero-stats li {
  padding: 1rem 1.1rem;
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015)),
    rgba(8, 16, 29, 0.8);
}

.hero-stats strong {
  display: block;
  margin-bottom: 0.35rem;
  color: #eef7ff;
  font-family: "Bebas Neue", sans-serif;
  font-size: 2rem;
  letter-spacing: 0.08em;
}

.hero-panel {
  display: grid;
  gap: 1rem;
}

.hero-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  padding: 1.45rem;
}

.hero-card::before,
.info-card::before,
.board-card::before,
.join-layout::before,
.faq-list details::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(138, 224, 255, 0.22), transparent 42%, rgba(109, 145, 255, 0.2));
  mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  mask-composite: exclude;
  pointer-events: none;
}

.hero-card-primary {
  background:
    radial-gradient(circle at 100% 0%, rgba(109, 192, 255, 0.18), transparent 0 32%),
    radial-gradient(circle at 0% 100%, rgba(111, 255, 244, 0.08), transparent 0 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 46%),
    var(--panel-strong);
}

.hero-card-primary::after {
  content: "";
  position: absolute;
  inset: auto -18% -28% auto;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(110, 199, 255, 0.16), transparent 62%);
  pointer-events: none;
}

.hero-card-secondary {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0)),
    linear-gradient(135deg, rgba(27, 68, 109, 0.48), rgba(15, 31, 52, 0.82)),
    var(--panel);
}

.card-topline,
.hero-score,
.board-header,
.footer-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.card-topline,
.match-feed article p,
.hero-card-secondary p,
.board-card p,
.board-card span,
.quote-card span,
.site-footer p {
  margin: 0;
}

.card-topline {
  color: #d8e7fb;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0.36rem 0.76rem;
  border: 1px solid rgba(154, 241, 255, 0.2);
  border-radius: 999px;
  background: rgba(110, 248, 255, 0.08);
  color: var(--secondary);
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.hero-score {
  align-items: flex-start;
  margin: 1.55rem 0;
}

.hero-score strong {
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.15;
}

.hero-quick-points {
  display: grid;
  gap: 0.7rem;
  justify-items: end;
}

.hero-quick-points span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0.65rem 1rem;
  border: 1px solid rgba(145, 206, 255, 0.14);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015)),
    rgba(9, 20, 34, 0.76);
  color: #ebf4ff;
  font-weight: 700;
  white-space: nowrap;
}

.score-box {
  display: none;
}

.match-feed {
  display: grid;
  gap: 0.9rem;
}

.match-feed article {
  position: relative;
  padding: 1rem 1rem 1.08rem;
  border: 1px solid rgba(143, 208, 255, 0.08);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015)),
    rgba(9, 19, 32, 0.74);
}

.match-feed article::before {
  content: "";
  position: absolute;
  left: 1rem;
  top: 0;
  width: 52px;
  height: 1px;
  background: linear-gradient(90deg, var(--primary), transparent);
}

.match-feed article strong,
.board-card strong {
  display: block;
  margin: 0.42rem 0;
  font-size: 1.08rem;
  color: #f6f9ff;
}

.match-feed article span,
.hero-stats span,
.leaderboard .points {
  color: var(--muted);
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.section-heading {
  position: relative;
  max-width: 46rem;
  margin-bottom: 2.25rem;
  padding-left: 1.25rem;
}

.section-heading::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72rem;
  bottom: 0.72rem;
  width: 3px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--secondary), rgba(255, 255, 255, 0.15));
  box-shadow: 0 0 18px rgba(112, 207, 255, 0.28);
}

.section-heading h2,
.arena-panel h2,
.join-layout h2 {
  font-size: clamp(2.9rem, 7vw, 5rem);
}

.feature-grid,
.quote-grid {
  display: grid;
  gap: 1.25rem;
}

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

.info-card,
.quote-card,
.board-card,
.faq-list details {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 1.45rem;
}

.info-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.012)),
    rgba(8, 18, 30, 0.82);
}

.icon-wrap {
  display: inline-grid;
  place-items: center;
  width: 3.55rem;
  height: 3.55rem;
  margin-bottom: 1rem;
  border: 1px solid rgba(150, 226, 255, 0.14);
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)),
    linear-gradient(135deg, rgba(18, 50, 77, 0.9), rgba(45, 106, 164, 0.54));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.icon-wrap svg {
  width: 24px;
  height: 24px;
  stroke: var(--secondary);
  stroke-width: 1.6;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.info-card h3,
.timeline h3,
.board-card h3 {
  margin: 0 0 0.72rem;
  color: #f5f9ff;
  font-size: 1.22rem;
}

.arena-layout {
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.88fr);
  align-items: start;
}

.timeline {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.timeline article {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  padding: 1.15rem;
  border: 1px solid rgba(144, 204, 255, 0.1);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015)),
    rgba(8, 18, 31, 0.8);
}

.timeline article span {
  display: inline-grid;
  place-items: center;
  width: 72px;
  height: 72px;
  border: 1px solid rgba(148, 225, 255, 0.18);
  border-radius: 20px;
  color: #f0f7ff;
  font-family: "Bebas Neue", sans-serif;
  font-size: 2rem;
  letter-spacing: 0.08em;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    linear-gradient(135deg, rgba(20, 53, 80, 0.92), rgba(60, 126, 191, 0.48));
}

.board-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.012)),
    rgba(8, 18, 31, 0.84);
}

.board-card+.board-card {
  margin-top: 1rem;
}

.board-header {
  align-items: center;
}

.board-header span {
  color: var(--secondary);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.leaderboard li {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto;
  gap: 0.9rem;
  align-items: center;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.leaderboard li:last-child {
  border-bottom: 0;
}

.rank,
.points {
  font-family: "Bebas Neue", sans-serif;
  letter-spacing: 0.08em;
}

.rank {
  color: #eff6ff;
  font-size: 1.8rem;
}

.team {
  color: var(--muted-strong);
  font-weight: 700;
}

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

.quote-card {
  padding-top: 1.45rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015)),
    rgba(8, 18, 30, 0.8);
}

.quote-card::after {
  content: "";
  position: absolute;
  left: 1.45rem;
  right: 1.45rem;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--primary), transparent);
}

.quote-card::before {
  content: "";
  position: absolute;
  right: 1.3rem;
  top: 1.25rem;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(138, 218, 255, 0.12);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(138, 218, 255, 0.08), transparent 70%);
}

.quote-card strong {
  display: block;
  margin-top: 1.1rem;
  color: #f2f8ff;
}

.join-section {
  padding-bottom: 5rem;
}

.join-layout {
  position: relative;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  padding: 1.6rem;
  border-radius: 36px;
  background:
    radial-gradient(circle at 100% 0%, rgba(124, 204, 255, 0.16), transparent 0 28%),
    linear-gradient(135deg, rgba(13, 34, 57, 0.92), rgba(6, 15, 27, 0.98));
}

.join-copy {
  display: grid;
  align-content: center;
}

.join-steps {
  display: grid;
  gap: 0.9rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.join-steps li {
  position: relative;
  padding: 1rem 1rem 1rem 3.25rem;
  border: 1px solid rgba(142, 209, 255, 0.1);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.014)),
    rgba(8, 18, 30, 0.72);
  color: #e8f2ff;
  line-height: 1.72;
}

.join-steps li::before {
  content: "";
  position: absolute;
  left: 1rem;
  top: 50%;
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 999px;
  transform: translateY(-50%);
  background: linear-gradient(135deg, var(--secondary), var(--accent));
  box-shadow: 0 0 18px rgba(108, 198, 255, 0.22);
}

.join-note {
  margin: 1.25rem 0 0;
  max-width: 40rem;
}

.join-card {
  display: grid;
  gap: 1rem;
  align-content: start;
  justify-items: center;
  padding: 1.35rem;
  border: 1px solid rgba(149, 221, 255, 0.12);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)),
    rgba(5, 12, 23, 0.9);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 24px 64px rgba(0, 0, 0, 0.3);
}

.join-card-frame {
  width: 100%;
  padding: 0.85rem;
  border: 1px solid rgba(150, 220, 255, 0.12);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015)),
    rgba(9, 18, 31, 0.9);
}

.join-qrcode {
  width: 100%;
  display: block;
  height: auto;
  border-radius: 14px;
}

.join-card strong {
  font-size: 1.15rem;
  text-align: center;
}

.join-card span {
  color: var(--muted);
  text-align: center;
  line-height: 1.72;
}

.faq-layout,
.faq-list {
  display: grid;
  gap: 1rem;
}

.faq-list details {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015)),
    rgba(8, 18, 30, 0.82);
}

.faq-list summary {
  position: relative;
  padding-right: 2rem;
  color: #f2f8ff;
  font-weight: 800;
  cursor: pointer;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0;
  color: var(--secondary);
  font-size: 1.5rem;
  line-height: 1;
}

.faq-list details[open] summary::after {
  content: "-";
}

.faq-list p {
  margin: 0.9rem 0 0;
}

.site-footer {
  padding: 0 0 2rem;
}

.footer-layout {
  padding: 1.4rem 0;
  border-top: 1px solid rgba(141, 208, 255, 0.1);
}

.footer-link {
  padding: 0.82rem 1rem;
  border: 1px solid rgba(141, 208, 255, 0.12);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015)),
    rgba(8, 17, 29, 0.76);
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 0.45rem;
  margin-top: 1.15rem;
  align-items: end;
}

.signal-strip span {
  display: block;
  min-height: 18px;
  border-radius: 999px 999px 10px 10px;
  background: linear-gradient(180deg, #a5ecff, #3faaff);
  box-shadow: 0 0 16px rgba(93, 188, 255, 0.12);
}

.signal-strip span:nth-child(1) {
  height: 22px;
}

.signal-strip span:nth-child(2) {
  height: 34px;
}

.signal-strip span:nth-child(3) {
  height: 28px;
}

.signal-strip span:nth-child(4) {
  height: 44px;
}

.signal-strip span:nth-child(5) {
  height: 30px;
}

.signal-strip span:nth-child(6) {
  height: 18px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 650ms ease,
    transform 650ms ease;
  transition-delay: var(--delay, 0ms);
}

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

@keyframes drift-a {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }

  to {
    transform: translate3d(3%, 1.5%, 0) scale(1.06);
  }
}

@keyframes drift-b {
  from {
    transform: translate3d(0, 0, 0) scale(1);
  }

  to {
    transform: translate3d(-2%, 2.5%, 0) scale(1.05);
  }
}

@keyframes grid-pulse {

  0%,
  100% {
    opacity: 0.14;
  }

  50% {
    opacity: 0.22;
  }
}

:focus-visible {
  outline: 3px solid rgba(136, 227, 255, 0.75);
  outline-offset: 4px;
}

@media (max-width: 980px) {
  :root {
    --header-offset: 94px;
  }

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

  .nav-links {
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: calc(100% + 0.7rem);
    display: grid;
    gap: 0.4rem;
    padding: 1rem;
    border: 1px solid rgba(144, 212, 255, 0.12);
    border-radius: 20px;
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015)),
      rgba(5, 11, 22, 0.96);
    backdrop-filter: blur(20px);
    transform: scale(0.98);
    transform-origin: top;
    opacity: 0;
    visibility: hidden;
    transition:
      opacity var(--transition),
      transform var(--transition),
      visibility var(--transition);
  }

  .nav-links.is-open {
    opacity: 1;
    visibility: visible;
    transform: scale(1);
  }

  .nav-links a {
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: 0.8rem 0.95rem;
    border-radius: 14px;
  }

  .nav-links a:hover,
  .nav-links a:focus-visible,
  .nav-links a.is-active {
    background: rgba(255, 255, 255, 0.05);
  }

  .nav-cta {
    justify-content: center;
    color: #02101c;
  }

  .hero-layout,
  .arena-layout,
  .join-layout,
  .feature-grid,
  .quote-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 2.7rem;
  }

  .hero-layout {
    min-height: auto;
  }

  .hero-copy::after {
    position: static;
    display: block;
    margin-top: 1rem;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 3.8rem 0;
  }

  .site-nav {
    padding: 0.78rem 0.95rem;
  }

  .brand-copy {
    font-size: 0.95rem;
  }

  .hero h1 {
    font-size: clamp(3.2rem, 16vw, 5rem);
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .button {
    justify-content: center;
  }

  .hero-badges {
    gap: 0.65rem;
  }

  .hero-badges li {
    width: 100%;
    text-align: center;
  }

  .hero-score {
    flex-direction: column;
  }

  .hero-quick-points {
    width: 100%;
    justify-items: stretch;
  }

  .hero-quick-points span {
    width: 100%;
  }

  .timeline article {
    grid-template-columns: 1fr;
  }

  .timeline article span {
    width: 56px;
    height: 56px;
    border-radius: 16px;
  }

  .leaderboard li {
    grid-template-columns: 44px minmax(0, 1fr);
  }

  .leaderboard .points {
    grid-column: 2;
  }

  .join-layout {
    padding: 1.2rem;
  }

  .join-card {
    padding: 1rem;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

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