:root {
  --color-background: #f5f7fb;
  --color-hero: radial-gradient(circle at 18% 20%, rgba(79, 70, 229, 0.12), transparent 60%),
    radial-gradient(circle at 82% 25%, rgba(14, 165, 233, 0.12), transparent 60%),
    linear-gradient(145deg, #ffffff 0%, #ebf1ff 100%);
  --color-surface: rgba(255, 255, 255, 0.9);
  --color-surface-strong: rgba(255, 255, 255, 1);
  --color-border: rgba(148, 163, 184, 0.25);
  --color-border-strong: rgba(99, 102, 241, 0.35);
  --color-text-primary: #0f172a;
  --color-text-secondary: rgba(15, 23, 42, 0.7);
  --color-highlight: #4f46e5;
  --color-highlight-strong: #4338ca;
  --color-accent: #0ea5e9;
  --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --layout-max-width: 1120px;
  --shadow-card: 0 20px 40px rgba(15, 23, 42, 0.08);
  --shadow-card-strong: 0 32px 60px rgba(79, 70, 229, 0.15);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: var(--font-base);
  background: var(--color-background);
  color: var(--color-text-primary);
  scroll-behavior: smooth;
}

body {
  line-height: 1.6;
  min-height: 100vh;
}

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

a:hover,
a:focus {
  color: var(--color-highlight-strong);
}

.container {
  width: min(100% - 3rem, var(--layout-max-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.85);
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
}

.nav {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 1rem;
}

.logo {
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.logo span {
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  font-size: 0.95rem;
  font-weight: 500;
}

.nav-links a {
  opacity: 0.82;
  transition: opacity 0.2s ease, color 0.2s ease;
}

.nav-links a:hover {
  opacity: 1;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 0.3rem;
  background: none;
  border: 0;
  padding: 0.3rem 0;
  cursor: pointer;
}

.menu-toggle span {
  width: 1.75rem;
  height: 0.14rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.75);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.menu-toggle.open span:nth-child(1) {
  transform: translateY(0.44rem) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
  transform: translateY(-0.44rem) rotate(-45deg);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border 0.2s ease;
  background: linear-gradient(135deg, #4f46e5, #0ea5e9);
  color: #ffffff;
  box-shadow: 0 16px 32px rgba(14, 165, 233, 0.25);
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 24px 40px rgba(14, 165, 233, 0.35);
}

.button-outline {
  background: #ffffff;
  border: 1px solid rgba(79, 70, 229, 0.4);
  color: var(--color-highlight-strong);
  box-shadow: none;
}

.button-outline:hover {
  border-color: var(--color-highlight);
  color: #312e81;
  background: rgba(99, 102, 241, 0.08);
}

.hero {
  position: relative;
  padding: clamp(6rem, 10vw, 9rem) 0 5rem;
  background: var(--color-hero);
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.orb {
  position: absolute;
  width: clamp(280px, 40vw, 480px);
  height: clamp(280px, 40vw, 480px);
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.75;
}

.orb-primary {
  top: -12%;
  left: -6%;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.3), transparent 70%);
}

.orb-secondary {
  bottom: -22%;
  right: -12%;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.28), transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2rem;
  max-width: 640px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  background: rgba(14, 165, 233, 0.12);
  border: 1px solid rgba(14, 165, 233, 0.45);
  color: rgba(14, 165, 233, 0.9);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  line-height: 1.15;
  margin: 0;
  color: #0b1120;
}

.hero p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1.5rem;
}

.stat {
  font-size: 2rem;
  font-weight: 600;
  margin: 0;
  color: var(--color-highlight-strong);
}

.stat-label {
  margin: 0;
  color: rgba(15, 23, 42, 0.55);
  font-size: 0.85rem;
}

section {
  padding: clamp(4rem, 8vw, 5.5rem) 0;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.6rem);
  text-align: center;
  margin: 0 auto 2.5rem;
  max-width: 700px;
  color: #0f172a;
}

.section-heading {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.section-heading p {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
}

.features {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9) 0%, rgba(226, 232, 240, 0.6) 100%);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem;
}

.card {
  position: relative;
  background: var(--color-surface);
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 18px;
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(6px);
  display: grid;
  gap: 1rem;
}

.card h3 {
  margin: 0;
  font-size: 1.3rem;
  color: #111827;
}

.card p {
  margin: 0;
  color: rgba(30, 41, 59, 0.7);
}

.card-icon {
  width: 72px;
  height: 72px;
  border-radius: 32px;
  background: rgba(79, 70, 229, 0.12);
  display: grid;
  place-items: center;
}

.icon {
  display: block;
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.9), rgba(14, 165, 233, 0.9));
  position: relative;
  box-shadow: var(--shadow-card-strong);
}

.icon::after {
  content: '';
  position: absolute;
  inset: 8px;
  border-radius: 10px;
  border: 2px solid rgba(255, 255, 255, 0.7);
  opacity: 0.7;
}

.icon-latency::after {
  border-top-color: transparent;
  border-right-color: transparent;
}

.icon-market-data::after {
  border-left-color: transparent;
}

.icon-support::after {
  border-bottom-color: transparent;
}

.use-cases {
  background: radial-gradient(circle at top, rgba(79, 70, 229, 0.12), transparent 55%),
    linear-gradient(145deg, #f8fafc 0%, #e2e8f0 100%);
}

.use-case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.75rem;
}

.use-case-card {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.94), rgba(241, 245, 249, 0.94));
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: 18px;
  padding: 2rem;
  min-height: 180px;
  display: grid;
  align-content: start;
  gap: 0.75rem;
  box-shadow: var(--shadow-card);
}

.use-case-card h3 {
  margin: 0;
  color: #0f172a;
}

.use-case-card p {
  margin: 0;
  color: rgba(30, 41, 59, 0.7);
}

.cta {
  background: linear-gradient(145deg, rgba(79, 70, 229, 0.08), rgba(14, 165, 233, 0.08)), #ffffff;
}

.cta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.cta-card {
  background: radial-gradient(circle at top right, rgba(14, 165, 233, 0.16), transparent 55%),
    rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 20px;
  padding: 2.5rem;
  display: grid;
  gap: 1.25rem;
  box-shadow: var(--shadow-card);
}

.cta-card h3 {
  margin: 0;
  color: #0f172a;
}

.cta-card p {
  margin: 0;
  color: rgba(30, 41, 59, 0.7);
}

.site-footer {
  padding: 3rem 0 2rem;
  background: #ffffff;
  border-top: 1px solid rgba(148, 163, 184, 0.25);
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 2rem;
  padding-bottom: 2rem;
}

.footer-copy {
  max-width: 320px;
  margin: 0;
  color: rgba(30, 41, 59, 0.66);
}

.footer-links {
  display: grid;
  gap: 0.6rem;
  font-size: 0.95rem;
}

.footer-links a {
  color: rgba(15, 23, 42, 0.75);
}

.footer-links a:hover {
  color: var(--color-highlight-strong);
}

.footer-meta {
  border-top: 1px solid rgba(148, 163, 184, 0.22);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(71, 85, 105, 0.75);
}

@media (max-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (max-width: 820px) {
  .nav {
    flex-wrap: wrap;
    align-items: center;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: 72px;
    right: 1.5rem;
    width: min(260px, 80vw);
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(148, 163, 184, 0.25);
    border-radius: 16px;
    padding: 1.25rem;
    flex-direction: column;
    gap: 1rem;
    transform: translateY(-20px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
  }

  .nav-links.open {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
  }

  .button.button-outline {
    display: none;
  }

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

  .use-case-grid {
    grid-template-columns: 1fr;
  }

  .hero-content {
    max-width: none;
  }
}

@media (max-width: 600px) {
  .container {
    width: min(100% - 2rem, var(--layout-max-width));
  }

  .hero-stats {
    gap: 1rem;
  }

  .stat {
    font-size: 1.7rem;
  }
}