:root {
  --bg: #06090d;
  --bg-elev: #0b1118;
  --bg-elev-2: #0f1620;
  --border: #1a2330;
  --border-strong: #243246;
  --text: #e6edf5;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent: #22d3ee;
  --accent-strong: #67e8f9;
  --accent-soft: rgba(34, 211, 238, 0.12);
  --accent-glow: rgba(34, 211, 238, 0.35);
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.03) inset, 0 10px 30px -20px rgba(0, 0, 0, 0.8);

  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "JetBrains Mono", Menlo, Consolas, monospace;

  --maxw: 1100px;
  --maxw-narrow: 760px;

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover { color: var(--accent-strong); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--bg-elev);
  color: var(--text);
  padding: 10px 14px;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm);
  z-index: 100;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}
.container.narrow {
  max-width: var(--maxw-narrow);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(6, 9, 13, 0.75);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 64px;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.wordmark:hover { color: var(--text); }
.wordmark-mark {
  width: 22px;
  height: 22px;
  color: var(--accent);
}
.primary-nav {
  display: flex;
  gap: 22px;
}
.primary-nav a {
  color: var(--text-muted);
  font-size: 14px;
  letter-spacing: 0.02em;
  transition: color 140ms ease;
}
.primary-nav a:hover { color: var(--text); }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-sm);
  width: 40px;
  height: 36px;
  padding: 0;
  cursor: pointer;
  position: relative;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--text);
  margin: 3px auto;
  transition: transform 200ms ease, opacity 200ms ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(4.5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-4.5px) rotate(-45deg);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 88px;
  border-bottom: 1px solid var(--border);
}
.hero-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(34, 211, 238, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(34, 211, 238, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.9), transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.9), transparent 70%);
  z-index: 0;
}
.hero::before {
  content: "";
  position: absolute;
  top: -180px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--accent-glow), transparent 60%);
  filter: blur(40px);
  opacity: 0.35;
  z-index: 0;
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 780px;
}
.eyebrow {
  display: inline-block;
  margin: 0 0 18px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(34, 211, 238, 0.25);
  border-radius: 999px;
}
.hero-title {
  margin: 0 0 12px;
  font-size: clamp(40px, 8vw, 72px);
  letter-spacing: 0.08em;
  font-weight: 700;
  line-height: 1;
}
.hero-tagline {
  margin: 0 0 18px;
  font-size: clamp(18px, 2.4vw, 22px);
  color: var(--text);
}
.hero-body {
  margin: 0 auto 28px;
  max-width: 620px;
  color: var(--text-muted);
}
.cta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}
.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: var(--r-sm);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: transform 120ms ease, background 160ms ease, border-color 160ms ease, color 160ms ease;
  border: 1px solid transparent;
}
.cta-primary {
  background: var(--accent);
  color: #04181c;
}
.cta-primary:hover {
  background: var(--accent-strong);
  color: #04181c;
}
.cta-ghost {
  color: var(--text);
  border-color: var(--border-strong);
  background: transparent;
}
.cta-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.cta:active { transform: translateY(1px); }

/* Sections */
.section {
  padding: 88px 0;
  border-bottom: 1px solid var(--border);
}
.section-title {
  margin: 0 0 28px;
  font-size: clamp(24px, 3.2vw, 32px);
  letter-spacing: -0.01em;
}
.section p {
  color: var(--text-muted);
}
.section.narrow p { max-width: 65ch; }

/* Capabilities */
.capability-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.capability {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 22px 22px 20px;
  box-shadow: var(--shadow);
  transition: border-color 160ms ease, transform 160ms ease, background 160ms ease;
}
.capability:hover {
  border-color: var(--border-strong);
  background: var(--bg-elev-2);
  transform: translateY(-2px);
}
.cap-icon {
  width: 28px;
  height: 28px;
  color: var(--accent);
  margin-bottom: 14px;
}
.capability h3 {
  margin: 0 0 8px;
  font-size: 16px;
  letter-spacing: 0.01em;
}
.capability p {
  margin: 0;
  color: var(--text-muted);
  font-size: 14.5px;
  line-height: 1.55;
}

/* Steps (How it works) */
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}
.step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 16px;
  align-items: start;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 20px 22px;
}
.step-num {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--accent);
  letter-spacing: 0.08em;
  padding-top: 2px;
}
.step-body h3 {
  margin: 0 0 4px;
  font-size: 17px;
}
.step-body p {
  margin: 0;
  color: var(--text-muted);
  font-size: 14.5px;
}

/* Contact */
.contact-block .contact-email {
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 16px;
}
.contact-block .contact-email a {
  color: var(--text);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 1px;
  transition: color 140ms ease;
}
.contact-block .contact-email a:hover {
  color: var(--accent);
}
.contact-block .contact-cta {
  margin-top: 20px;
}

/* Footer */
.site-footer {
  padding: 32px 0 48px;
  background: var(--bg);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.footer-inner .copy,
.footer-inner .note {
  margin: 0;
  color: var(--text-dim);
  font-size: 13.5px;
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 600ms ease, transform 600ms ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* Responsive */
@media (max-width: 880px) {
  .capability-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .nav-toggle { display: block; }
  .primary-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
    padding: 8px 0;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 160ms ease, transform 160ms ease;
  }
  .primary-nav.open {
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }
  .primary-nav a {
    padding: 12px 24px;
    border-top: 1px solid var(--border);
  }
  .primary-nav a:first-child { border-top: 0; }

  .hero { padding: 72px 0 64px; }
  .section { padding: 64px 0; }
  .capability-grid { grid-template-columns: 1fr; }
  .step { grid-template-columns: 48px 1fr; gap: 12px; padding: 18px 18px; }
  .step-num { font-size: 16px; }
}
@media (max-width: 380px) {
  .container { padding: 0 18px; }
}