* {
  box-sizing: border-box;
}

:root {
  --bg: #070b18;
  --bg-2: #0b1024;
  --panel: rgba(15, 23, 51, 0.78);
  --panel-2: rgba(9, 15, 35, 0.92);
  --line: rgba(38, 244, 255, 0.26);
  --cyan: #26f4ff;
  --blue: #3b82f6;
  --purple: #a855f7;
  --pink: #ff4ecd;
  --green: #5fffcb;
  --orange: #ffb86b;
  --text: #eaf2ff;
  --muted: #9da9c4;
  --shadow: 0 0 40px rgba(38, 244, 255, 0.14);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 80% 10%, rgba(168, 85, 247, 0.20), transparent 34%),
    radial-gradient(circle at 15% 18%, rgba(38, 244, 255, 0.16), transparent 30%),
    linear-gradient(135deg, #050713 0%, #070b18 45%, #100824 100%);
  color: var(--text);
  min-height: 100vh;
}

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 90%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px clamp(20px, 5vw, 70px);
  backdrop-filter: blur(18px);
  background: rgba(7, 11, 24, 0.72);
  border-bottom: 1px solid rgba(38, 244, 255, 0.16);
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand img {
  height: 32px;
  width: auto;
  display: block;
}

nav {
  display: flex;
  gap: 20px;
}

nav a,
.text-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
}

nav a:hover,
.text-link:hover {
  color: var(--cyan);
}

main {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  min-height: 86vh;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 36px;
  align-items: center;
  padding: 70px 0 40px;
}

.eyebrow {
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.76rem;
  font-weight: 800;
  margin-bottom: 14px;
}

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

h1 {
  font-size: clamp(3.2rem, 8vw, 6.9rem);
  line-height: 0.9;
  letter-spacing: -0.07em;
  margin-bottom: 28px;
}

h2 {
  font-size: clamp(2rem, 4vw, 4.2rem);
  line-height: 0.96;
  letter-spacing: -0.045em;
  margin-bottom: 18px;
}

h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

p {
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.65;
}

.hero-copy p {
  max-width: 680px;
  font-size: 1.22rem;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
  border: 1px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

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

.button.primary {
  color: #04111f;
  background: linear-gradient(135deg, var(--cyan), var(--green));
  box-shadow: 0 0 26px rgba(38, 244, 255, .28);
}

.button.secondary {
  color: var(--text);
  background: rgba(255,255,255,.04);
  border-color: rgba(38, 244, 255, .28);
}

.hero-panel,
.diagram-card,
.card,
.comparison,
.callout,
.final-cta {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(15,23,51,.86), rgba(8,13,31,.86));
  box-shadow: var(--shadow);
  border-radius: 28px;
}

.hero-panel {
  position: relative;
  overflow: hidden;
  min-height: 520px;
  padding: 30px;
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: -80px;
  background:
    radial-gradient(circle at 50% 48%, rgba(38,244,255,.18), transparent 32%),
    conic-gradient(from 80deg, rgba(38,244,255,.12), rgba(168,85,247,.22), rgba(255,78,205,.12), rgba(38,244,255,.12));
  filter: blur(20px);
  animation: rotate 18s linear infinite;
}

.orbit {
  position: relative;
  z-index: 1;
  width: 300px;
  height: 300px;
  margin: 20px auto 32px;
  border: 1px solid rgba(38,244,255,.38);
  border-radius: 999px;
  box-shadow: inset 0 0 40px rgba(38,244,255,.12), 0 0 50px rgba(168,85,247,.14);
}

.orbit span {
  position: absolute;
  width: 82px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  font-weight: 900;
  font-size: .78rem;
  background: rgba(7,11,24,.85);
  border: 1px solid rgba(38,244,255,.35);
}

.orbit span:nth-child(1) { top: -18px; left: 109px; color: var(--cyan); }
.orbit span:nth-child(2) { top: 96px; right: -42px; color: var(--purple); }
.orbit span:nth-child(3) { bottom: -18px; left: 109px; color: var(--pink); }
.orbit span:nth-child(4) { top: 96px; left: -42px; color: var(--green); }
.orbit span:nth-child(5) { top: 130px; left: 109px; color: var(--orange); }

.metric-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.metric-grid div {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255,255,255,.045);
  border: 1px solid rgba(255,255,255,.09);
}

.metric-grid strong,
.metric-grid span {
  display: block;
}

.metric-grid strong {
  color: var(--text);
  font-size: 1.05rem;
}

.metric-grid span {
  color: var(--muted);
  margin-top: 5px;
  font-size: .86rem;
}

.section {
  padding: 72px 0;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
  border-top: 1px solid rgba(38,244,255,.16);
  border-bottom: 1px solid rgba(38,244,255,.16);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.diagram-card {
  padding: 14px;
}

.diagram-card img {
  display: block;
  width: 100%;
  border-radius: 18px;
}

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

.card {
  padding: 24px;
  min-height: 220px;
  position: relative;
}

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 28px;
  background: radial-gradient(circle at top right, rgba(38,244,255,.14), transparent 35%);
  pointer-events: none;
}

.card-num {
  display: inline-flex;
  color: var(--cyan);
  font-weight: 900;
  margin-bottom: 28px;
}

.comparison {
  overflow: hidden;
}

.comparison-row {
  display: grid;
  grid-template-columns: 1.1fr 1.4fr 1.5fr;
  border-bottom: 1px solid rgba(38,244,255,.12);
}

.comparison-row:last-child {
  border-bottom: 0;
}

.comparison-row div {
  padding: 18px;
  color: var(--muted);
}

.comparison-row div:first-child {
  color: var(--text);
  font-weight: 800;
}

.comparison-row.head {
  background: rgba(38,244,255,.10);
}

.comparison-row.head div {
  color: var(--cyan);
  font-weight: 900;
}

.callout {
  padding: 44px;
  background:
    radial-gradient(circle at 20% 0%, rgba(38,244,255,.18), transparent 35%),
    radial-gradient(circle at 90% 100%, rgba(168,85,247,.20), transparent 35%),
    var(--panel-2);
}

blockquote {
  margin: 0 0 24px;
  font-size: clamp(1.8rem, 4vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
  font-weight: 900;
}

.final-cta {
  padding: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.final-cta p {
  max-width: 760px;
}

footer {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0 46px;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid rgba(38,244,255,.16);
}

@keyframes rotate {
  to { transform: rotate(360deg); }
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }

  nav {
    flex-wrap: wrap;
  }

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

  .hero {
    min-height: unset;
  }

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

  .comparison-row {
    grid-template-columns: 1fr;
  }

  .comparison-row div {
    border-bottom: 1px solid rgba(255,255,255,.06);
  }

  .final-cta,
  footer,
  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .8s ease, transform .8s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}