:root {
  color-scheme: dark;
  --bg: #07100f;
  --bg-2: #0d1816;
  --panel: #111f1d;
  --panel-2: #162824;
  --text: #f3f0e8;
  --muted: #aebcb7;
  --line: rgba(243, 240, 232, 0.14);
  --teal: #5fd2c2;
  --teal-dark: #1a8e83;
  --copper: #c78d55;
  --ink: #030706;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.38);
  --max: 1180px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

body.nav-open {
  overflow: hidden;
}

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

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

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 100;
  transform: translateY(-140%);
  background: var(--text);
  color: var(--ink);
  padding: 10px 14px;
  border-radius: 4px;
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(7, 16, 15, 0.88);
  border-color: var(--line);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(100% - 32px, var(--max));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(95, 210, 194, 0.5);
  background: rgba(95, 210, 194, 0.12);
  color: var(--teal);
  border-radius: 7px;
}

.brand-text {
  letter-spacing: 0;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  color: rgba(243, 240, 232, 0.84);
  font-size: 0.94rem;
}

.nav-menu a {
  padding: 10px 12px;
  border-radius: 6px;
}

.nav-menu a:hover,
.nav-menu a:focus-visible {
  background: rgba(243, 240, 232, 0.08);
  color: var(--text);
  outline: none;
}

.nav-menu .nav-cta {
  margin-left: 8px;
  color: var(--ink);
  background: var(--text);
  font-weight: 700;
}

.nav-menu .nav-cta:hover,
.nav-menu .nav-cta:focus-visible {
  background: var(--teal);
  color: var(--ink);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(243, 240, 232, 0.06);
  color: var(--text);
  padding: 10px;
}

.nav-toggle-line {
  display: block;
  width: 100%;
  height: 2px;
  margin: 4px 0;
  background: currentColor;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hero {
  position: relative;
  min-height: 92svh;
  display: grid;
  align-items: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero picture,
.hero-image,
.hero-scrim {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero picture {
  z-index: 0;
}

.hero-image {
  object-fit: cover;
  object-position: center;
  aspect-ratio: 16 / 9;
}

.hero-scrim {
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(7, 16, 15, 0.96) 0%, rgba(7, 16, 15, 0.78) 38%, rgba(7, 16, 15, 0.28) 70%),
    linear-gradient(0deg, rgba(7, 16, 15, 0.92) 0%, rgba(7, 16, 15, 0.18) 42%, rgba(7, 16, 15, 0.52) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
  padding: 132px 0 72px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 790px;
  margin-bottom: 22px;
  font-size: clamp(3rem, 7vw, 6.9rem);
  line-height: 0.94;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.15rem;
  line-height: 1.25;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 690px;
  color: rgba(243, 240, 232, 0.84);
  font-size: clamp(1.05rem, 2vw, 1.32rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 34px 0 44px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 18px;
  border-radius: 6px;
  border: 1px solid var(--line);
  font-weight: 800;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
  outline: none;
}

.button.primary {
  background: var(--text);
  color: var(--ink);
}

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

.button.secondary {
  background: rgba(243, 240, 232, 0.08);
  color: var(--text);
}

.button.secondary:hover,
.button.secondary:focus-visible {
  border-color: rgba(95, 210, 194, 0.55);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  width: min(760px, 100%);
  margin: 0;
  border: 1px solid var(--line);
  background: var(--line);
  box-shadow: var(--shadow);
}

.hero-metrics div {
  padding: 18px;
  background: rgba(7, 16, 15, 0.72);
}

.hero-metrics dt {
  margin-bottom: 4px;
  font-weight: 800;
}

.hero-metrics dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.section {
  padding: 96px 0;
}

.section-inner {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
}

.two-column {
  display: grid;
  grid-template-columns: 0.92fr 1fr;
  gap: 72px;
  align-items: start;
}

.lede-stack {
  color: var(--muted);
  font-size: 1.12rem;
}

.lede-stack p:last-child,
.section-heading p:last-child,
.card p:last-child,
.architecture-item p:last-child,
.feature-list p:last-child,
.faq-grid p:last-child,
.pricing-layout p:last-child,
.contact-panel p:last-child {
  margin-bottom: 0;
}

.band {
  background: var(--bg-2);
  border-block: 1px solid var(--line);
}

.section-heading {
  max-width: 850px;
  margin-bottom: 40px;
}

.section-heading.compact {
  max-width: 780px;
}

.cards {
  display: grid;
  gap: 18px;
}

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

.card {
  min-height: 260px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(243, 240, 232, 0.045);
}

.card-kicker {
  display: block;
  margin-bottom: 44px;
  color: var(--copper);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.card p,
.architecture-item p,
.feature-list p,
.protocol-panel p,
.tier-table p,
.faq-grid p,
.pricing-layout p,
.contact-panel p,
.footer p {
  color: var(--muted);
}

.architecture-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.architecture-item {
  min-height: 310px;
  padding: 30px;
  background: var(--bg);
}

.architecture-number {
  margin-bottom: 88px;
  color: var(--teal);
  font-weight: 900;
}

.split-band {
  background: linear-gradient(180deg, #101f1c, #07100f);
  border-block: 1px solid var(--line);
}

.split {
  display: grid;
  grid-template-columns: 0.86fr 1fr;
  gap: 64px;
  align-items: center;
}

.split > div:first-child p:not(.eyebrow) {
  color: var(--muted);
  font-size: 1.12rem;
}

.protocol-panel,
.tier-table {
  border: 1px solid var(--line);
  background: rgba(3, 7, 6, 0.38);
}

.protocol-panel div,
.tier-table div {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 22px;
  padding: 22px;
  border-bottom: 1px solid var(--line);
}

.protocol-panel div:last-child,
.tier-table div:last-child {
  border-bottom: 0;
}

.protocol-panel span,
.tier-table span {
  color: var(--text);
  font-weight: 900;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.feature-list article {
  padding: 28px;
  background: var(--bg);
}

.pricing-layout {
  display: grid;
  grid-template-columns: 0.78fr 1fr;
  gap: 56px;
  align-items: start;
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.contact {
  padding-top: 24px;
}

.contact-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
  padding: 38px;
  border: 1px solid rgba(95, 210, 194, 0.35);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(95, 210, 194, 0.13), rgba(199, 141, 85, 0.1));
}

.contact-panel h2 {
  max-width: 800px;
  font-size: clamp(2rem, 4vw, 3.6rem);
}

.footer {
  border-top: 1px solid var(--line);
  padding: 24px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: var(--muted);
  font-size: 0.94rem;
}

.footer a {
  color: var(--text);
  font-weight: 800;
}

@media (max-width: 920px) {
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 72px;
    right: 16px;
    left: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(7, 16, 15, 0.97);
    box-shadow: var(--shadow);
  }

  .nav-menu.is-open {
    display: flex;
  }

  .nav-menu a {
    padding: 14px 12px;
  }

  .nav-menu .nav-cta {
    margin: 8px 0 0;
    text-align: center;
  }

  .hero {
    min-height: auto;
  }

  .hero-scrim {
    background:
      linear-gradient(180deg, rgba(7, 16, 15, 0.94) 0%, rgba(7, 16, 15, 0.84) 46%, rgba(7, 16, 15, 0.98) 100%),
      linear-gradient(90deg, rgba(7, 16, 15, 0.86), rgba(7, 16, 15, 0.34));
  }

  .hero-content {
    padding-top: 122px;
  }

  .two-column,
  .split,
  .pricing-layout,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .cards.three,
  .architecture-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

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

  .architecture-item {
    min-height: auto;
  }

  .architecture-number {
    margin-bottom: 36px;
  }

  .contact-panel .button {
    width: fit-content;
  }
}

@media (max-width: 640px) {
  .brand-text {
    max-width: 190px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  h1 {
    font-size: clamp(2.55rem, 14vw, 4.2rem);
  }

  .hero-content {
    width: min(100% - 24px, var(--max));
    padding-bottom: 48px;
  }

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

  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 68px 0;
  }

  .section-inner {
    width: min(100% - 24px, var(--max));
  }

  .card,
  .architecture-item,
  .feature-list article,
  .contact-panel {
    padding: 22px;
  }

  .protocol-panel div,
  .tier-table div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .contact-panel .button {
    width: 100%;
  }

  .footer-inner {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}