:root {
  --coinbase-blue: #0052ff;
  --hover-blue: #578bfa;
  --near-black: #0a0b0d;
  --dark-card: #282b31;
  --surface: #eef0f3;
  --text: #0a0b0d;
  --muted: #5b616e;
  --white: #ffffff;
  --border: rgba(91, 97, 110, 0.2);
  --shadow: 0 28px 70px rgba(10, 11, 13, 0.12);
  --max-width: 1240px;
  --pill-radius: 56px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(0, 82, 255, 0.12), transparent 28rem),
    linear-gradient(180deg, #fbfcff 0%, #f6f8fb 100%);
  color: var(--text);
  font-family: "Manrope", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
}

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

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

.page-shell {
  min-height: 100vh;
}

.site-header,
.hero,
.feature-band,
.screens,
.audience,
.cta,
.site-footer {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0 10px;
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand img {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  box-shadow: 0 16px 35px rgba(0, 82, 255, 0.18);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-copy strong,
.site-nav a,
.button,
.mini-pill,
.screen-card figcaption strong,
.matrix-card strong {
  font-family: "Sora", sans-serif;
}

.brand-copy strong {
  font-size: 0.95rem;
  font-weight: 700;
}

.brand-copy span {
  font-size: 0.82rem;
  color: var(--muted);
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border: 1px solid rgba(91, 97, 110, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 12px 35px rgba(10, 11, 13, 0.08);
}

.site-nav a {
  padding: 12px 16px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--muted);
  transition: background 160ms ease, color 160ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: rgba(0, 82, 255, 0.08);
  color: var(--coinbase-blue);
}

.site-nav .nav-cta {
  background: var(--coinbase-blue);
  color: var(--white);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, 0.95fr);
  gap: 44px;
  align-items: center;
  padding: 56px 0 84px;
}

.eyebrow,
.mini-label,
.card-index,
.matrix-label {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 700;
}

.eyebrow,
.mini-label,
.card-index,
.matrix-label {
  color: var(--coinbase-blue);
}

.hero h1,
.section-heading h2,
.cta-panel h2 {
  font-family: "Sora", sans-serif;
  line-height: 1.04;
  letter-spacing: -0.04em;
}

.hero h1 {
  margin: 14px 0 20px;
  font-size: clamp(2.7rem, 5.8vw, 4.85rem);
  font-weight: 600;
}

.hero-body,
.section-heading p,
.feature-card p,
.screen-card figcaption span,
.bullet-list li,
.cta-panel p {
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.72;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 0 24px;
  border-radius: var(--pill-radius);
  border: 1px solid transparent;
  font-size: 1rem;
  font-weight: 600;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease, border-color 180ms ease;
}

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

.button-primary {
  background: var(--coinbase-blue);
  color: var(--white);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--hover-blue);
}

.button-secondary {
  background: var(--surface);
  color: var(--text);
  border-color: rgba(91, 97, 110, 0.16);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: rgba(0, 82, 255, 0.22);
  color: var(--coinbase-blue);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 36px 0 0;
}

.hero-stats div {
  padding: 18px 18px 16px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 16px 36px rgba(10, 11, 13, 0.05);
}

.hero-stats dt {
  font-family: "Sora", sans-serif;
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
}

.hero-stats dd {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

.hero-visual {
  position: relative;
  min-height: 100%;
  padding-top: 24px;
}

.hero-card {
  position: relative;
  padding: 18px;
  border: 1px solid rgba(91, 97, 110, 0.18);
  border-radius: 34px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: linear-gradient(145deg, rgba(0, 82, 255, 0.16), rgba(255, 255, 255, 0));
  z-index: 0;
  pointer-events: none;
}

.hero-card > * {
  position: relative;
  z-index: 1;
}

.hero-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.mini-pill {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 16px;
  border-radius: 999px;
  background: rgba(0, 82, 255, 0.08);
  color: var(--coinbase-blue);
  font-size: 0.84rem;
  font-weight: 700;
}

.hero-card img,
.screen-card img {
  width: 100%;
  border-radius: 24px;
}

.hero-side-card {
  position: absolute;
  right: -20px;
  bottom: 18px;
  width: min(100%, 280px);
  padding: 22px;
  border-radius: 28px;
  background: var(--near-black);
  color: var(--white);
  box-shadow: 0 24px 45px rgba(10, 11, 13, 0.32);
}

.hero-side-card ul {
  margin: 14px 0 0;
  padding-left: 18px;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.7;
}

.section-dark {
  background: var(--near-black);
  color: var(--white);
  border-radius: 40px;
  padding: 72px;
}

.section-light {
  padding: 72px 0;
}

.feature-band,
.audience {
  margin-bottom: 28px;
}

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

.section-heading h2 {
  margin: 14px 0 18px;
  font-size: clamp(2.15rem, 4.2vw, 3.45rem);
  font-weight: 600;
}

.section-dark .section-heading p,
.section-dark .feature-card p,
.section-dark .bullet-list li,
.section-dark .language-panel,
.section-dark .matrix-card {
  color: rgba(255, 255, 255, 0.78);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 34px;
}

.feature-card,
.screen-card,
.matrix-card,
.cta-panel,
.language-panel {
  border: 1px solid rgba(91, 97, 110, 0.2);
}

.feature-card {
  min-height: 280px;
  padding: 28px;
  border-radius: 28px;
  background: rgba(40, 43, 49, 0.95);
}

.feature-card h3 {
  margin: 16px 0 14px;
  font-family: "Sora", sans-serif;
  font-size: 1.65rem;
  line-height: 1.15;
}

.screen-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 34px;
}

.screen-card {
  padding: 18px;
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 22px 50px rgba(10, 11, 13, 0.08);
}

.screen-card figcaption {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 8px 6px;
}

.screen-card figcaption strong {
  font-size: 1.15rem;
}

.audience-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 24px;
  margin-top: 34px;
}

.bullet-list {
  display: grid;
  gap: 14px;
  margin: 0 0 24px;
  padding-left: 20px;
}

.language-panel {
  padding: 24px;
  border-radius: 28px;
  background: rgba(40, 43, 49, 0.95);
}

.language-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.language-chips span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 15px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  font-size: 0.92rem;
}

.audience-matrix {
  display: grid;
  gap: 16px;
  align-content: start;
}

.matrix-card {
  padding: 24px;
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
}

.matrix-card strong {
  display: block;
  margin-top: 10px;
  font-size: 1.2rem;
  line-height: 1.3;
  color: var(--white);
}

.cta {
  padding-top: 36px;
  padding-bottom: 90px;
}

.cta-panel {
  padding: 44px;
  border-radius: 36px;
  background: linear-gradient(135deg, #ffffff 0%, #eef3ff 55%, #f6f8fb 100%);
  box-shadow: var(--shadow);
}

.cta-panel h2 {
  margin: 12px 0 18px;
  font-size: clamp(2.1rem, 4vw, 3.3rem);
  font-weight: 600;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 0 0 40px;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer a {
  color: var(--coinbase-blue);
  font-weight: 700;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  animation: revealUp 720ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.delay-1 { animation-delay: 80ms; }
.delay-2 { animation-delay: 160ms; }
.delay-3 { animation-delay: 240ms; }
.delay-4 { animation-delay: 320ms; }

@keyframes revealUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1080px) {
  .hero,
  .audience-layout {
    grid-template-columns: 1fr;
  }

  .hero-side-card {
    position: static;
    width: auto;
    margin-top: 18px;
  }

  .feature-grid,
  .screen-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 820px) {
  .site-header {
    position: static;
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav {
    justify-content: space-between;
    flex-wrap: wrap;
  }

  .section-dark {
    padding: 38px 22px;
    border-radius: 28px;
  }

  .section-light {
    padding: 44px 0;
  }

  .hero {
    gap: 28px;
    padding: 26px 0 56px;
  }

  .hero-stats,
  .feature-grid,
  .screen-grid {
    grid-template-columns: 1fr;
  }

  .cta-panel {
    padding: 28px 22px;
  }

  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}