:root {
  --bg: #f3f3f1;
  --surface: #f7f7f5;
  --surface-2: #efefec;
  --text: #121212;
  --text-soft: #3c3c3c;
  --text-muted: #666666;
  --line: rgba(17, 17, 17, 0.11);
  --line-strong: rgba(17, 17, 17, 0.22);
  --accent: #1e6bff;
  --max: 1220px;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow-soft: 0 18px 50px rgba(0, 0, 0, 0.04);
  --transition: 180ms ease;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: linear-gradient(to bottom, rgba(255,255,255,0.25), rgba(255,255,255,0.25)), var(--bg);
  color: var(--text);
  font-family: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible { outline: 2px solid #111111; outline-offset: 3px; }

.skip-link {
  position: absolute; left: 16px; top: -100px; z-index: 2000; padding: 10px 14px;
  background: #111111; color: #ffffff; border-radius: 10px; transition: top var(--transition);
}
.skip-link:focus { top: 16px; }

.site-shell { position: relative; overflow-x: clip; }
.site-shell::before {
  content: ""; position: fixed; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(17,17,17,0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(17,17,17,0.02) 1px, transparent 1px);
  background-size: 44px 44px; mask-image: linear-gradient(to bottom, rgba(0,0,0,0.14), rgba(0,0,0,0));
}

.container { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }
.section { padding: 104px 0; position: relative; }
.section-line { border-top: 1px solid var(--line); }
.section-head { max-width: 880px; margin-bottom: 42px; }

.eyebrow {
  display: inline-block; margin: 0 0 14px; font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent);
}

h1, h2, h3, p, ul { margin-top: 0; }
h1 {
  font-size: clamp(2.6rem, 6vw, 5.2rem); line-height: 0.97; letter-spacing: -0.04em;
  max-width: 11.5ch; margin-bottom: 24px;
}
h2 {
  font-size: clamp(2rem, 3vw, 3.4rem); line-height: 1.02; letter-spacing: -0.04em;
  max-width: 18ch; margin-bottom: 0;
}
h3 { font-size: 1.18rem; line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 12px; }
p { color: var(--text-soft); }

.hero { padding: 140px 0 88px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 42px; align-items: center; }
.hero-text { max-width: 62ch; font-size: 1.05rem; color: var(--text-soft); margin-bottom: 28px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 28px; }
.hero-signals { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.hero-signals li {
  padding: 10px 12px; border: 1px solid var(--line); background: rgba(255,255,255,0.38);
  color: var(--text-soft); font-size: 0.92rem; border-radius: 999px;
}

.button {
  display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 18px;
  font-size: 0.96rem; font-weight: 600; border-radius: 999px; border: 1px solid var(--line-strong);
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}
.button:hover { transform: translateY(-1px); }
.button-primary { background: #111111; color: #ffffff; border-color: #111111; }
.button-primary:hover { background: var(--accent); border-color: var(--accent); }
.button-secondary { background: transparent; color: var(--text); }
.button-secondary:hover { background: rgba(17,17,17,0.04); }

.frame {
  position: relative; background: linear-gradient(to bottom right, rgba(255,255,255,0.7), rgba(255,255,255,0.25));
  border: 1px solid var(--line); box-shadow: var(--shadow-soft); overflow: hidden;
}
.frame::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; border: 1px solid rgba(255,255,255,0.35); mix-blend-mode: screen;
}
.frame-large { border-radius: 26px; padding: 10px; }
.frame-medium, .frame-small { border-radius: 22px; padding: 8px; }
.hero-figure img, .network-visual-stack img { width: 100%; object-fit: cover; border-radius: 16px; }

.site-header {
  position: sticky; top: 0; z-index: 1000; backdrop-filter: blur(10px);
  background: rgba(243, 243, 241, 0.76); border-bottom: 1px solid rgba(17,17,17,0.07);
}
.header-inner { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: 0; }
.brand-logo { height: 30px; width: auto; object-fit: contain; }
.brand-fallback { font-weight: 700; letter-spacing: -0.03em; display: none; }
.site-nav { display: flex; align-items: center; gap: 24px; }
.site-nav a { font-size: 0.95rem; color: var(--text-soft); }
.site-nav a:hover { color: var(--text); }
.site-nav .nav-cta { padding: 10px 14px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,0.42); }
.site-nav .nav-cta:hover { border-color: rgba(30, 107, 255, 0.24); }

.nav-toggle {
  display: none; width: 46px; height: 46px; border: 1px solid var(--line); border-radius: 12px;
  background: rgba(255,255,255,0.4); align-items: center; justify-content: center; gap: 5px; flex-direction: column; cursor: pointer;
}
.nav-toggle span { display: block; width: 18px; height: 1.5px; background: #111111; transition: transform var(--transition), opacity var(--transition); }

.platform-grid { display: grid; grid-template-columns: 1.1fr 1.1fr 0.8fr; gap: 18px; }
.platform-card {
  background: rgba(255,255,255,0.42); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; min-height: 210px;
}
.platform-card p { margin: 0; font-size: 1rem; }
.platform-card-accent { background: #111111; color: #ffffff; }
.platform-card-accent p, .platform-card-accent .terminal-label { color: rgba(255,255,255,0.9); }
.terminal-label {
  display: inline-block; margin-bottom: 18px; font-family: "IBM Plex Mono", monospace;
  font-size: 0.76rem; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(30, 107, 255, 0.92);
}
.positioning { font-size: 1.06rem; line-height: 1.55; }

.capability-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.capability-card {
  position: relative; background: rgba(255,255,255,0.42); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px; min-height: 220px;
}
.capability-index {
  display: inline-block; margin-bottom: 18px; color: var(--accent);
  font-family: "IBM Plex Mono", monospace; font-size: 0.84rem;
}

.network-layout { display: grid; grid-template-columns: 0.88fr 1.12fr; gap: 28px; align-items: start; }
.network-copy p:not(.eyebrow) { max-width: 56ch; }
.feature-list { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 12px; }
.feature-list li { padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--text-soft); }
.network-visual-stack { display: grid; gap: 18px; }

.section-contrast { background: linear-gradient(to bottom, rgba(255,255,255,0.16), rgba(255,255,255,0.04)); }
.contrast-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contrast-card {
  padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,0.42);
}
.contrast-card-strong { background: #111111; color: #ffffff; border-color: #111111; }
.contrast-card-strong li, .contrast-card-strong .contrast-label { color: rgba(255,255,255,0.9); }
.contrast-label {
  display: inline-block; margin-bottom: 18px; font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent);
}
.contrast-card ul { margin: 0; padding-left: 18px; }
.contrast-card li + li { margin-top: 12px; }

.environment-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.environment-card { border-top: 1px solid var(--line-strong); padding: 22px 0 0; }
.environment-card p { margin-bottom: 0; }

.cta-panel {
  display: flex; align-items: end; justify-content: space-between; gap: 28px; padding: 32px;
  border: 1px solid var(--line); border-radius: 24px; background: linear-gradient(135deg, rgba(255,255,255,0.55), rgba(255,255,255,0.18));
  box-shadow: var(--shadow-soft);
}
.cta-copy h2 { max-width: 14ch; }
.cta-copy p:last-child { margin-bottom: 0; max-width: 52ch; }
.cta-signals {
  list-style: none;
  padding: 0;
  margin: 20px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.cta-signals li a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,0.58);
  color: var(--text-soft);
  font-size: 0.92rem;
}
.cta-signals li a:hover { color: var(--text); background: rgba(255,255,255,0.78); }
.hero-signals li:hover { border-color: rgba(30, 107, 255, 0.24); }
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; flex-shrink: 0; }

.site-footer { padding: 30px 0 42px; border-top: 1px solid var(--line); }
.footer-inner { display: grid; grid-template-columns: 1fr auto auto; gap: 20px; align-items: end; }
.footer-brand { margin-bottom: 4px; font-weight: 700; letter-spacing: -0.03em; color: var(--text); }
.footer-meta, .footer-copy { margin: 0; color: var(--text-muted); font-size: 0.92rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; }
.footer-links a { color: var(--text-soft); }
.footer-links a:hover { color: var(--accent); }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity 700ms ease, transform 700ms ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1120px) {
  .hero-grid, .network-layout, .platform-grid, .capability-grid, .environment-grid, .contrast-grid, .footer-inner { grid-template-columns: 1fr; }
  .cta-panel { flex-direction: column; align-items: start; }
  .cta-copy h2 { max-width: 16ch; }
}

@media (max-width: 860px) {
  .section { padding: 84px 0; }
  .hero { padding: 118px 0 72px; }
  .header-inner { min-height: 72px; }
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute; top: calc(100% + 10px); left: 20px; right: 20px; padding: 14px;
    border: 1px solid var(--line); border-radius: 18px; background: rgba(247, 247, 245, 0.96);
    box-shadow: var(--shadow-soft); display: none; flex-direction: column; align-items: stretch; gap: 10px;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 10px 12px; border-radius: 12px; }
  .site-nav a:hover { background: rgba(17,17,17,0.04); }
  .site-nav .nav-cta { text-align: center; }
  h1 { max-width: 12.5ch; }
}

@media (max-width: 640px) {
  .container { width: min(calc(100% - 28px), var(--max)); }
  .hero-actions, .cta-actions { flex-direction: column; align-items: stretch; }
  .button { width: 100%; }
  .hero-signals { flex-direction: column; align-items: stretch; }
  .hero-signals li { text-align: center; }
  .platform-card, .capability-card, .contrast-card, .cta-panel { padding: 22px; }
  .frame-large { border-radius: 22px; padding: 8px; }
  .frame-medium, .frame-small { border-radius: 18px; padding: 6px; }
  .hero-figure img, .network-visual-stack img { border-radius: 12px; }
}