:root {
  --blue: #1800ad;
  --blue-lift: #2d14d4;
  --blue-bright: #4a35ff;
  --blue-deep: #0f0078;
  --nvidia: #76b900;
  --black: #000000;
  --surface: #07070c;
  --surface-1: #0e0e16;
  --surface-2: #14141e;
  --surface-3: #1b1b26;
  --white: #ffffff;
  --text: #e8e8ee;
  --text-mid: #a8a8b5;
  --text-mute: #6e6e7c;
  --text-faint: #4a4a56;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --line-blue: rgba(74, 53, 255, 0.4);
  --sans:
    "Sora", -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  background: var(--black);
}
body {
  font-family: var(--sans);
  background: var(--black);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
::selection {
  background: var(--blue);
  color: var(--white);
}
.wrap {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 56px;
}

/* ============ Header ============ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 22px 48px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 40px;
}
.header-nav {
  display: flex;
  gap: 36px;
  align-items: center;
}
.header-nav.right {
  justify-content: flex-end;
}
.header-nav a {
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-mid);
  text-decoration: none;
  transition: color 0.2s;
  position: relative;
  padding: 6px 0;
}
.header-nav a:hover {
  color: var(--white);
}
.header-nav a.is-active {
  color: var(--white);
}
.header-nav a.is-active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 1px;
  background: var(--blue-bright);
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--white);
}
.brand-mark {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}
.brand-name {
  font-family: var(--sans);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.32em;
  color: var(--white);
  white-space: nowrap;
}
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line-strong);
  padding: 8px 12px;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--white);
}

/* ============ Hero ============ */
.hero {
  position: relative;
  padding: 120px 0 140px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 1100px;
  height: 800px;
  background: radial-gradient(
    ellipse at center,
    rgba(45, 20, 212, 0.35) 0%,
    rgba(24, 0, 173, 0.12) 30%,
    transparent 65%
  );
  pointer-events: none;
  filter: blur(40px);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at center top, black 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(
    ellipse at center top,
    black 0%,
    transparent 75%
  );
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
}
.hero h1 {
  font-family: var(--sans);
  font-weight: 700;
  font-size: clamp(40px, 6.5vw, 88px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--white);
  max-width: 22ch;
  margin-bottom: 36px;
}
.hero h1 .blue {
  color: var(--blue-bright);
  font-weight: 700;
}
.hero-lede {
  font-size: 20px;
  line-height: 1.55;
  color: var(--text-mid);
  max-width: 64ch;
  margin-bottom: 56px;
  font-weight: 300;
}
.hero-lede strong {
  color: var(--white);
  font-weight: 500;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 26px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid;
  transition: all 0.25s;
}
.btn-primary {
  background: var(--blue);
  color: var(--white);
  border-color: var(--blue);
}
.btn-primary:hover {
  background: var(--blue-lift);
  border-color: var(--blue-lift);
  box-shadow: 0 0 28px rgba(45, 20, 212, 0.4);
}
.btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: var(--line-strong);
}
.btn-ghost:hover {
  border-color: var(--blue-bright);
  color: var(--blue-bright);
}
.btn .arrow {
  transition: transform 0.25s;
}
.btn:hover .arrow {
  transform: translateX(4px);
}

/* ============ Section base ============ */
.section {
  padding: 140px 0;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.section-marker {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin-bottom: 28px;
  display: inline-flex;
  align-items: center;
  gap: 14px;
}
.section-marker::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--blue-bright);
}
.section-marker b {
  color: var(--blue-bright);
  font-weight: 600;
}
.section-head {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 80px;
  align-items: end;
  margin-bottom: 96px;
}
.section-title {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(36px, 4.5vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--white);
  max-width: 18ch;
}
.section-title .blue {
  color: var(--blue-bright);
}
.section-lede {
  font-size: 18px;
  line-height: 1.6;
  color: var(--text-mid);
  max-width: 60ch;
  font-weight: 300;
}
.section-lede strong {
  color: var(--white);
  font-weight: 500;
}

/* ============ About grid ============ */
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}
.about-cell {
  padding: 48px 40px 48px 0;
  border-right: 1px solid var(--line);
}
.about-cell:last-child {
  border-right: 0;
  padding-right: 0;
}
.about-cell:not(:first-child) {
  padding-left: 40px;
}
.about-cell .step {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--blue-bright);
  margin-bottom: 28px;
  font-weight: 500;
}
.about-cell h3 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 26px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--white);
  margin-bottom: 18px;
  max-width: 18ch;
}
.about-cell p {
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-mid);
  font-weight: 300;
  max-width: 42ch;
}
.about-cell p strong {
  color: var(--white);
  font-weight: 500;
}

/* ============ Federal credentials ============ */
.federal-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  border: 1px solid var(--line);
}
.federal-grid > div {
  padding: 28px 24px;
  border-right: 1px solid var(--line);
  text-align: center;
}
.federal-grid > div:last-child {
  border-right: 0;
}
.federal-grid .label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin-bottom: 12px;
  display: block;
}
.federal-grid .value {
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--white);
}
.federal-grid .value.blue {
  color: var(--blue-bright);
}

/* ============ CTA / Engagement ============ */
.cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.cta-headline {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--white);
  max-width: 16ch;
}
.cta-headline .blue {
  color: var(--blue-bright);
}
.cta-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.cta-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 28px;
  border: 1px solid var(--line);
  border-bottom: 0;
  text-decoration: none;
  transition: all 0.25s;
}
.cta-item:last-child {
  border-bottom: 1px solid var(--line);
}
.cta-item:hover {
  background: var(--surface-1);
  border-color: var(--line-strong);
}
.cta-item h5 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 16px;
  color: var(--white);
  margin-bottom: 4px;
}
.cta-item span {
  font-size: 13px;
  color: var(--text-mute);
  font-weight: 300;
}
.cta-item .arrow {
  font-size: 22px;
  color: var(--text-faint);
  transition:
    color 0.25s,
    transform 0.25s;
}
.cta-item:hover .arrow {
  color: var(--blue-bright);
  transform: translateX(4px);
}

/* ============ Reveal ============ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.6s,
    transform 0.6s;
}
.reveal.is-in {
  opacity: 1;
  transform: translateY(0);
}

/* ============ Footer ============ */
footer {
  padding: 80px 0 48px;
  border-top: 1px solid var(--line);
  background: var(--surface);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 56px;
  margin-bottom: 56px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}
.footer-brand .brand-mark {
  width: 32px;
  height: 32px;
}
.footer-brand .brand-name {
  font-size: 18px;
}
.footer-col p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-mid);
  max-width: 36ch;
  font-weight: 300;
}
.footer-col h6 {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin-bottom: 20px;
  font-weight: 500;
}
.footer-col ul {
  list-style: none;
}
.footer-col ul li {
  margin-bottom: 11px;
}
.footer-col ul li a {
  font-size: 14px;
  color: var(--text-mid);
  text-decoration: none;
  transition: color 0.2s;
  font-weight: 400;
}
.footer-col ul li a:hover {
  color: var(--white);
}
.footer-partner {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  padding: 8px 14px;
  background: rgba(118, 185, 0, 0.06);
  border: 1px solid rgba(118, 185, 0, 0.25);
}
.footer-partner .dot {
  width: 6px;
  height: 6px;
  background: var(--nvidia);
  border-radius: 50%;
}
.footer-partner span {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--nvidia);
  font-weight: 500;
}
.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 12px;
  color: var(--text-faint);
}
.footer-bottom .ids {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.footer-bottom .ids span b {
  color: var(--blue-bright);
  font-weight: 500;
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .wrap {
    padding: 0 32px;
  }
  .header-inner {
    grid-template-columns: auto 1fr auto;
  }
  .header-nav {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .header-nav.is-open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.96);
    flex-direction: column;
    padding: 24px 48px;
    gap: 18px;
    border-bottom: 1px solid var(--line);
  }
  .header-nav.is-open.right {
    display: none;
  }
  .section-head,
  .cta-grid,
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
  .about-cell {
    border-right: 0;
    padding: 32px 0;
    border-bottom: 1px solid var(--line);
  }
  .about-cell:last-child {
    border-bottom: 0;
  }
  .about-cell:not(:first-child) {
    padding-left: 0;
  }
  .federal-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .federal-grid > div:nth-child(3) {
    border-right: 0;
  }
  .federal-grid > div:nth-child(n + 4) {
    border-top: 1px solid var(--line);
  }
}
@media (max-width: 640px) {
  .wrap {
    padding: 0 20px;
  }
  .hero {
    padding: 80px 0 100px;
  }
  .section {
    padding: 80px 0;
  }
  .federal-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}