:root {
  --bg: #050713;
  --bg2: #0a1024;
  --text: #f4f8ff;
  --muted: #aab6c8;
  --line: rgba(255,255,255,.13);
  --panel: rgba(255,255,255,.075);
  --panel2: rgba(255,255,255,.11);
  --cyan: #6ee7ff;
  --blue: #4aa3ff;
  --violet: #9d7cff;
  --green: #79ffbf;
  --shadow: rgba(0,0,0,.38);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 14% 4%, rgba(110,231,255,.19), transparent 28rem),
    radial-gradient(circle at 87% 2%, rgba(157,124,255,.16), transparent 24rem),
    radial-gradient(circle at 45% 100%, rgba(74,163,255,.12), transparent 30rem),
    var(--bg);
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(5,7,19,.78);
  border-bottom: 1px solid var(--line);
}

.nav {
  max-width: 1180px;
  margin: 0 auto;
  padding: 1rem 1.2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: .72rem;
  font-weight: 850;
  letter-spacing: -.035em;
}

.logo-mark {
  width: 35px;
  height: 35px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, #fff, transparent 12%),
    radial-gradient(circle, var(--cyan), var(--violet) 58%, transparent 72%);
  box-shadow: 0 0 30px rgba(110,231,255,.55);
}

.nav-links {
  display: flex;
  gap: 1.05rem;
  color: var(--muted);
  font-size: .94rem;
}

.nav-links a:hover { color: var(--cyan); }

.nav-toggle {
  display: none;
  background: rgba(255,255,255,.06);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 1.2rem;
  padding: .25rem .55rem;
}

.hero {
  max-width: 1180px;
  min-height: 730px;
  margin: 0 auto;
  padding: 7.5rem 1.2rem 4.5rem;
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 3rem;
  align-items: center;
}

.eyebrow, .section-label {
  margin: 0;
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: .15em;
  font-weight: 850;
  font-size: .76rem;
}

h1, h2, h3 { margin: 0; line-height: 1.04; }

h1 {
  margin-top: .8rem;
  max-width: 830px;
  font-size: clamp(2.8rem, 7vw, 5.75rem);
  letter-spacing: -.078em;
}

h2 {
  margin-top: .75rem;
  font-size: clamp(2rem, 4.2vw, 3.35rem);
  letter-spacing: -.058em;
}

h3 {
  font-size: 1.35rem;
  letter-spacing: -.035em;
}

.hero-text {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.2rem;
  margin: 1.45rem 0 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .95rem 1.25rem;
  border-radius: 999px;
  font-weight: 850;
  border: 1px solid var(--line);
}

.button.primary {
  color: #06101d;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  box-shadow: 0 18px 40px rgba(110,231,255,.16);
}

.button.secondary {
  background: rgba(255,255,255,.065);
}

.hero-panel, .glass-card, .card, .contact-grid a {
  background: linear-gradient(180deg, var(--panel2), var(--panel));
  border: 1px solid var(--line);
  box-shadow: 0 24px 65px var(--shadow);
  border-radius: 28px;
}

.hero-panel {
  padding: 1.45rem;
  position: relative;
  overflow: hidden;
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: conic-gradient(from 45deg, transparent, rgba(110,231,255,.24), transparent, rgba(157,124,255,.2), transparent);
  animation: spin 12s linear infinite;
  opacity: .42;
}

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

.diagram-title {
  font-weight: 850;
  margin-bottom: 1.2rem;
  color: var(--text);
}

.diagram {
  display: grid;
  gap: .7rem;
}

.diagram-node {
  padding: .95rem 1rem;
  border-radius: 18px;
  background: rgba(5,7,19,.82);
  border: 1px solid rgba(110,231,255,.25);
  color: var(--text);
  font-weight: 800;
}

.diagram-arrow {
  width: 2px;
  height: 24px;
  margin-left: 1.1rem;
  background: linear-gradient(var(--cyan), var(--violet));
  opacity: .8;
}

.diagram-note {
  color: var(--muted);
  font-size: .92rem;
  margin: 1.2rem 0 0;
}

.section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 5.5rem 1.2rem;
  border-top: 1px solid var(--line);
}

.section p {
  color: var(--muted);
  font-size: 1.075rem;
  max-width: 850px;
}

.intro {
  text-align: center;
}

.intro p:not(.section-label) {
  margin-left: auto;
  margin-right: auto;
}

.split {
  display: grid;
  grid-template-columns: 1fr .86fr;
  gap: 2rem;
  align-items: start;
}

.glass-card {
  padding: 2rem;
}

.glass-card.warning {
  border-color: rgba(121,255,191,.28);
}

ul {
  color: var(--muted);
  padding-left: 1.15rem;
  margin: 1rem 0 0;
}

li { margin: .55rem 0; }

.contrast {
  background:
    linear-gradient(135deg, rgba(110,231,255,.09), rgba(157,124,255,.075));
  border-radius: 34px;
  border: 1px solid var(--line);
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.card {
  padding: 1.45rem;
  min-height: 245px;
}

.card p {
  font-size: .97rem;
}

.icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  margin-bottom: 1rem;
  border-radius: 15px;
  background: rgba(110,231,255,.12);
  border: 1px solid rgba(110,231,255,.25);
  color: var(--cyan);
  font-weight: 900;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.timeline-item {
  padding: 1.35rem;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.055);
}

.timeline-item span {
  color: var(--cyan);
  font-weight: 900;
  font-size: 1.1rem;
}

.timeline-item p {
  font-size: .96rem;
  margin-bottom: 0;
}

.founder {
  background: linear-gradient(135deg, rgba(110,231,255,.08), rgba(157,124,255,.06));
  border-radius: 34px;
  border: 1px solid var(--line);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.contact-grid a {
  padding: 1.35rem;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.contact-grid span {
  display: block;
  color: var(--text);
  font-weight: 850;
  margin-bottom: .35rem;
}

.location {
  margin-top: 1.4rem;
}

.footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 2rem 1.2rem 3rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: .9rem;
}

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

@media (max-width: 980px) {
  .hero, .split {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 5.2rem;
  }

  .cards, .timeline, .contact-grid {
    grid-template-columns: 1fr;
  }

  .nav-toggle { display: block; }

  .nav-links {
    position: absolute;
    top: 67px;
    left: 1rem;
    right: 1rem;
    display: none;
    flex-direction: column;
    padding: 1rem;
    border-radius: 18px;
    background: rgba(7,10,25,.98);
    border: 1px solid var(--line);
  }

  .nav-links.open { display: flex; }
}