:root {
  --bg: #0b0f14;
  --bg-soft: #121821;
  --panel: rgba(18, 24, 33, 0.72);
  --panel-strong: rgba(22, 28, 38, 0.92);
  --line: rgba(139, 170, 201, 0.14);
  --text: #f4f8fc;
  --muted: #9fb0c3;
  --muted-strong: #c8d4e0;
  --primary: #00d1ff;
  --primary-soft: rgba(0, 209, 255, 0.16);
  --secondary: #4f8cff;
  --green: #00ffa3;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.38);
  --radius: 22px;
  --radius-sm: 16px;
  --container: 1180px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(79, 140, 255, 0.08), transparent 30%),
    radial-gradient(circle at 80% 20%, rgba(0, 209, 255, 0.08), transparent 26%),
    linear-gradient(180deg, #0a0e13 0%, #0b0f14 35%, #090c11 100%);
  color: var(--text);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

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

img {
  max-width: 100%;
}

.container {
  width: min(calc(100% - 40px), var(--container));
  margin: 0 auto;
}

.narrow {
  width: min(calc(100% - 40px), 820px);
  margin: 0 auto;
}

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.045;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 4px 4px, 4px 4px;
  mix-blend-mode: soft-light;
}

.page-glow {
  position: fixed;
  border-radius: 999px;
  filter: blur(90px);
  pointer-events: none;
  opacity: 0.22;
}

.page-glow-a {
  width: 440px;
  height: 440px;
  background: rgba(0, 209, 255, 0.26);
  top: -120px;
  right: -80px;
}

.page-glow-b {
  width: 380px;
  height: 380px;
  background: rgba(79, 140, 255, 0.2);
  left: -120px;
  top: 460px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(8, 11, 16, 0.48);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.header-inner,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 78px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, #c7f6ff 0, #7ce7ff 22%, var(--primary) 48%, rgba(79, 140, 255, 0.86) 74%, rgba(79, 140, 255, 0.18) 100%);
  box-shadow:
    0 0 0 6px rgba(0, 209, 255, 0.07),
    0 0 40px rgba(0, 209, 255, 0.4);
}

.brand-text {
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.nav {
  display: inline-flex;
  gap: 26px;
}

.nav a,
.footer-links a {
  color: var(--muted);
  transition: color 0.25s ease;
}

.nav a:hover,
.footer-links a:hover {
  color: var(--text);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
  cursor: pointer;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #04111b;
  background: linear-gradient(135deg, #bff4ff 0%, var(--primary) 38%, #62b1ff 100%);
  box-shadow: 0 14px 40px rgba(0, 209, 255, 0.22);
}

.button-secondary,
.button-ghost {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
}

.hero {
  padding: 72px 0 42px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--muted-strong);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.72rem;
  font-weight: 700;
}

.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 16px rgba(0, 255, 163, 0.5);
}

.hero h1 {
  margin: 18px 0 18px;
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: clamp(3rem, 6vw, 5.75rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
  max-width: 11ch;
}

.hero-text,
.section-text,
.cta-copy p {
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.75;
}

.hero-text {
  max-width: 640px;
}

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

.hero-note {
  margin-top: 18px;
  color: var(--muted-strong);
  font-size: 0.96rem;
}

.hero-visual {
  min-height: 560px;
}

.visual-shell {
  position: relative;
  min-height: 560px;
  border-radius: 28px;
  border: 1px solid rgba(160, 208, 255, 0.1);
  background:
    linear-gradient(180deg, rgba(16, 23, 32, 0.8) 0%, rgba(10, 14, 21, 0.92) 100%);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,0.05);
  overflow: hidden;
}

.visual-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at center, black 38%, transparent 92%);
}

.orbit,
.beam {
  position: absolute;
  border-radius: 999px;
}

.orbit-1,
.orbit-2 {
  inset: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(0, 209, 255, 0.12);
}

.orbit-1 {
  width: 280px;
  height: 280px;
  box-shadow: 0 0 60px rgba(0, 209, 255, 0.08);
}

.orbit-2 {
  width: 420px;
  height: 420px;
  border-color: rgba(79, 140, 255, 0.1);
}

.beam-h {
  left: 15%;
  right: 15%;
  top: 50%;
  height: 1px;
  transform: translateY(-50%);
  background: linear-gradient(90deg, transparent, rgba(0, 209, 255, 0.5), transparent);
}

.beam-v {
  top: 12%;
  bottom: 12%;
  left: 50%;
  width: 1px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, transparent, rgba(79, 140, 255, 0.5), transparent);
}

.node {
  position: absolute;
  width: 220px;
  padding: 18px;
  border-radius: 18px;
  background: rgba(14, 20, 29, 0.78);
  border: 1px solid rgba(162, 204, 246, 0.1);
  backdrop-filter: blur(14px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.24);
}

.node-label {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 8px;
}

.node strong {
  font-size: 1.02rem;
  line-height: 1.4;
}

.node-a { top: 70px; left: 56px; }
.node-b { top: 130px; right: 48px; }
.node-c { bottom: 88px; left: 76px; }
.node-d { bottom: 52px; right: 56px; }

.section {
  padding: 56px 0;
}

.section h2 {
  margin: 10px 0 0;
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.feature-card,
.cta-panel {
  border-radius: var(--radius);
  border: 1px solid rgba(160, 208, 255, 0.1);
  background:
    linear-gradient(180deg, rgba(18, 25, 35, 0.76) 0%, rgba(12, 18, 26, 0.92) 100%);
  box-shadow: var(--shadow);
}

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

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 56px;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: #9cefff;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  margin-bottom: 26px;
}

.feature-card h3,
.architecture-item h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.feature-card p,
.architecture-item p,
.site-footer p,
.form-note,
.form-success {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.architecture-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 40px;
  align-items: start;
}

.architecture-list {
  display: grid;
  gap: 16px;
}

.architecture-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  padding: 20px 22px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(160, 208, 255, 0.1);
  background: rgba(14, 19, 28, 0.7);
}

.architecture-index {
  font-family: "Space Grotesk", Inter, sans-serif;
  color: #9be8ff;
  font-size: 1rem;
  font-weight: 700;
}

.philosophy-section {
  padding-top: 32px;
}

.philosophy-quote {
  margin: 14px 0 0;
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: clamp(2rem, 4.5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  color: var(--text);
}

.cta-panel {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 30px;
  padding: 34px;
  overflow: hidden;
  position: relative;
}

.cta-panel::before {
  content: "";
  position: absolute;
  inset: auto -80px -100px auto;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(0, 209, 255, 0.18) 0%, rgba(0, 209, 255, 0.01) 72%);
  border-radius: 50%;
  filter: blur(10px);
}

.cta-form {
  display: grid;
  gap: 12px;
  align-content: start;
}

.cta-form input {
  width: 100%;
  min-height: 54px;
  padding: 0 18px;
  border: 1px solid rgba(160, 208, 255, 0.12);
  border-radius: 16px;
  background: rgba(5, 10, 16, 0.6);
  color: var(--text);
  outline: none;
}

.cta-form input:focus {
  border-color: rgba(0, 209, 255, 0.6);
  box-shadow: 0 0 0 4px rgba(0, 209, 255, 0.08);
}

.form-note,
.form-success {
  font-size: 0.92rem;
}

.site-footer {
  padding: 18px 0 30px;
}

.footer-links {
  display: inline-flex;
  gap: 18px;
  flex-wrap: wrap;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

@media (max-width: 1100px) {
  .hero-grid,
  .architecture-grid,
  .cta-panel {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    max-width: 12ch;
  }

  .hero-visual {
    min-height: auto;
  }
}

@media (max-width: 900px) {
  .nav {
    display: none;
  }

  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .container,
  .narrow {
    width: min(calc(100% - 28px), var(--container));
  }

  .site-header .button-ghost {
    display: none;
  }

  .header-inner,
  .footer-inner {
    min-height: 70px;
  }

  .hero {
    padding-top: 40px;
  }

  .hero h1 {
    font-size: 2.7rem;
    max-width: 100%;
  }

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

  .visual-shell {
    min-height: 500px;
  }

  .node {
    width: calc(100% - 28px);
    left: 14px !important;
    right: 14px !important;
  }

  .node-a { top: 22px; }
  .node-b { top: 136px; }
  .node-c { bottom: 134px; }
  .node-d { bottom: 22px; }

  .orbit-1 { width: 220px; height: 220px; }
  .orbit-2 { width: 320px; height: 320px; }

  .cta-panel {
    padding: 24px;
  }
}