:root {
  color-scheme: dark;
  --bg: #0c1411;
  --surface: #121d19;
  --surface-2: #17231f;
  --ink: #f2eef6;
  --muted: #a8aaa8;
  --mint: #8edbc6;
  --mint-strong: #55c7a9;
  --purple: #665d79;
  --purple-soft: #8c83a1;
  --coral: #ff9b86;
  --line: rgba(242, 238, 246, 0.12);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
  --radius: 28px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 12% 8%, rgba(142, 219, 198, 0.1), transparent 30rem),
    radial-gradient(circle at 88% 24%, rgba(102, 93, 121, 0.16), transparent 32rem),
    var(--bg);
  color: var(--ink);
  font-family: Inter, ui-rounded, "SF Pro Rounded", "Segoe UI", system-ui, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--ink);
  color: var(--bg);
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid transparent;
  background: rgba(12, 20, 17, 0.78);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(calc(100% - 40px), var(--max));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  width: 38px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 1px solid rgba(142, 219, 198, 0.35);
  border-radius: 12px;
  background: linear-gradient(145deg, rgba(142, 219, 198, 0.2), rgba(102, 93, 121, 0.3));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.brand-mark::before {
  width: 15px;
  height: 15px;
  border: 2px solid var(--mint);
  border-radius: 5px;
  content: "";
  transform: rotate(45deg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  padding: 9px 12px;
  border-radius: 12px;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 650;
  text-decoration: none;
  transition: background 160ms ease, color 160ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a[aria-current="page"] {
  background: rgba(255, 255, 255, 0.06);
  color: var(--ink);
}

.hero {
  width: min(calc(100% - 40px), var(--max));
  min-height: calc(100svh - 76px);
  margin: 0 auto;
  padding: 72px 0;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  align-items: center;
  gap: clamp(48px, 8vw, 112px);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--mint);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

h1 {
  max-width: 700px;
  margin-bottom: 24px;
  font-size: clamp(3.4rem, 8vw, 6.8rem);
}

.hero h1 span {
  color: var(--mint);
}

.hero-copy {
  max-width: 620px;
  margin: 0 0 32px;
  color: #c4c6c4;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 52px;
  padding: 13px 21px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid transparent;
  border-radius: 16px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

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

.button-primary {
  background: var(--mint);
  color: #092019;
  box-shadow: 0 12px 36px rgba(85, 199, 169, 0.2);
}

.button-secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
}

.store-note {
  margin: 14px 0 0;
  color: #7f8581;
  font-size: 0.85rem;
}

.game-preview {
  position: relative;
  max-width: 430px;
  justify-self: center;
  isolation: isolate;
}

.game-preview::before {
  position: absolute;
  z-index: -1;
  inset: 8% -12% -6%;
  border-radius: 50%;
  background: rgba(142, 219, 198, 0.09);
  filter: blur(50px);
  content: "";
}

.phone {
  position: relative;
  padding: 26px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 44px;
  background: #0a110e;
  box-shadow: var(--shadow);
}

.phone-top {
  margin-bottom: 28px;
  display: flex;
  justify-content: space-between;
  color: #a6aaa7;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.phone-title {
  margin-bottom: 8px;
  font-size: 1.55rem;
}

.phone-subtitle {
  margin: 0 0 26px;
  color: #858b87;
  font-size: 0.9rem;
}

.puzzle {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 11px;
}

.tile {
  position: relative;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 21px;
  background: var(--surface-2);
  color: var(--mint);
  font-size: clamp(1.25rem, 4vw, 2.1rem);
  font-weight: 800;
  animation: breathe 3.8s ease-in-out infinite;
}

.tile:nth-child(2n) {
  background: rgba(102, 93, 121, 0.55);
  color: #ddd6eb;
  animation-delay: -1.2s;
}

.tile:nth-child(3n) {
  color: var(--coral);
  animation-delay: -2.1s;
}

.tile::after {
  position: absolute;
  inset: 10px;
  border: 1px solid currentColor;
  border-radius: 50%;
  opacity: 0.24;
  content: "";
}

.preview-footer {
  margin-top: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.steps {
  color: var(--muted);
  font-size: 0.85rem;
}

.score-pill {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(142, 219, 198, 0.12);
  color: var(--mint);
  font-size: 0.8rem;
  font-weight: 800;
}

.section {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 104px 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 44px;
}

.section-heading h2 {
  margin-bottom: 16px;
  font-size: clamp(2.2rem, 5vw, 4rem);
}

.section-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.mode-grid,
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.018));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.card-number,
.card-icon {
  width: 44px;
  height: 44px;
  margin-bottom: 34px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: rgba(142, 219, 198, 0.11);
  color: var(--mint);
  font-size: 0.84rem;
  font-weight: 900;
}

.card:nth-child(2) .card-number {
  background: rgba(255, 155, 134, 0.11);
  color: var(--coral);
}

.card:nth-child(3) .card-number {
  background: rgba(140, 131, 161, 0.18);
  color: #c2bad4;
}

.card h3 {
  margin-bottom: 12px;
  font-size: 1.5rem;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.leaderboard-band {
  padding: clamp(34px, 6vw, 72px);
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  align-items: center;
  gap: 50px;
  border: 1px solid rgba(142, 219, 198, 0.16);
  border-radius: 36px;
  background:
    linear-gradient(120deg, rgba(142, 219, 198, 0.09), transparent 45%),
    var(--surface);
}

.leaderboard-band h2 {
  margin-bottom: 18px;
  font-size: clamp(2.15rem, 5vw, 3.8rem);
}

.leaderboard-band p {
  color: var(--muted);
}

.board {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(6, 11, 9, 0.45);
}

.board-row {
  padding: 14px 12px;
  display: grid;
  grid-template-columns: 34px 1fr auto;
  gap: 10px;
  border-radius: 14px;
  color: #c8c7ce;
  font-size: 0.9rem;
}

.board-row + .board-row {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.board-row:first-child {
  background: rgba(142, 219, 198, 0.09);
  color: var(--mint);
  font-weight: 800;
}

.privacy-note {
  padding: 32px;
  display: flex;
  align-items: flex-start;
  gap: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.privacy-note strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1.08rem;
}

.privacy-note p {
  margin: 0;
  color: var(--muted);
}

.footer {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  padding: 40px 0;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--line);
  color: #858985;
  font-size: 0.88rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.footer a:hover {
  color: var(--ink);
}

.legal-shell {
  width: min(calc(100% - 40px), 820px);
  margin: 0 auto;
  padding: 72px 0 112px;
}

.legal-header {
  margin-bottom: 52px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--line);
}

.legal-header h1 {
  margin-bottom: 18px;
  font-size: clamp(2.6rem, 7vw, 5rem);
}

.legal-meta {
  color: var(--muted);
}

.legal-summary {
  margin: 30px 0 46px;
  padding: 22px 24px;
  border-left: 3px solid var(--mint);
  border-radius: 4px 18px 18px 4px;
  background: rgba(142, 219, 198, 0.07);
  color: #ced3d0;
}

.legal-content h2 {
  margin: 52px 0 16px;
  font-size: 1.65rem;
  letter-spacing: -0.025em;
}

.legal-content h3 {
  margin: 28px 0 10px;
  font-size: 1.1rem;
  letter-spacing: -0.015em;
}

.legal-content p,
.legal-content li {
  color: #b8bbb9;
}

.legal-content ul {
  padding-left: 1.3rem;
}

.legal-content li + li {
  margin-top: 8px;
}

.legal-content a {
  color: var(--mint);
  text-underline-offset: 3px;
}

.contact-card {
  margin-top: 52px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--surface);
}

.contact-card h2 {
  margin-top: 0;
}

@keyframes breathe {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(0.965);
  }
}

@media (max-width: 860px) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding-top: 64px;
  }

  .game-preview {
    width: min(100%, 420px);
  }

  .mode-grid,
  .benefit-grid {
    grid-template-columns: 1fr;
  }

  .leaderboard-band {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .nav {
    width: min(calc(100% - 28px), var(--max));
  }

  .nav-links a:not([aria-current="page"]) {
    display: none;
  }

  .hero,
  .section,
  .footer,
  .legal-shell {
    width: min(calc(100% - 28px), var(--max));
  }

  .hero {
    padding: 48px 0 72px;
  }

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

  .section {
    padding: 76px 0;
  }

  .phone {
    padding: 20px;
    border-radius: 34px;
  }

  .card {
    padding: 24px;
  }

  .leaderboard-band {
    padding: 28px 22px;
    border-radius: 28px;
  }

  .privacy-note,
  .footer {
    flex-direction: column;
  }

  .legal-shell {
    padding-top: 48px;
  }
}

@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;
  }
}