:root {
  --bg: #0a0c10;
  --bg-soft: #0f1218;
  --surface: #12161d;
  --border: #1e242e;
  --border-soft: #171c24;
  --text: #e8ecf1;
  --text-dim: #9aa4b2;
  --text-faint: #6b7684;
  --accent: #4ade80;
  --accent-dim: #22c55e;
  --accent-glow: rgba(74, 222, 128, 0.12);
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --max: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.grid-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.022) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.022) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 20%, transparent 75%);
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max);
  margin: 0 auto;
  padding: 20px 28px;
  backdrop-filter: blur(12px);
  background: rgba(10, 12, 16, 0.72);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease;
}
.nav.scrolled { border-bottom-color: var(--border-soft); }

.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--accent-glow);
  border: 1px solid rgba(74, 222, 128, 0.3);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.brand-text { font-weight: 600; font-size: 15px; letter-spacing: -0.01em; }
.brand-text .dim { color: var(--text-faint); font-weight: 400; }

.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  font-size: 14px;
  color: var(--text-dim);
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  padding: 7px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text) !important;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.nav-cta:hover { border-color: var(--accent); background: var(--accent-glow); }

/* ---------- Layout ---------- */
main { position: relative; z-index: 1; }
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 96px 28px;
  border-top: 1px solid var(--border-soft);
}

.section-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.2;
  max-width: 22ch;
}

/* ---------- Hero ---------- */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 96px 28px 104px;
}
.hero-inner { max-width: 780px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-dim);
  padding: 6px 14px 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-soft);
  margin-bottom: 30px;
}
.dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.6);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.5); }
  70% { box-shadow: 0 0 0 8px rgba(74, 222, 128, 0); }
  100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0); }
}

.hero h1 {
  font-size: clamp(38px, 6.2vw, 66px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.06;
  margin-bottom: 26px;
}
.hero h1 .accent {
  color: var(--accent);
  position: relative;
}

.lede {
  font-size: 18px;
  color: var(--text-dim);
  max-width: 60ch;
  margin-bottom: 36px;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 64px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 22px;
  border-radius: 10px;
  font-size: 14.5px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary {
  background: var(--accent);
  color: #06210f;
  font-weight: 600;
  box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.35);
}
.btn-primary:hover {
  background: #5ee894;
  transform: translateY(-1px);
  box-shadow: 0 6px 24px -6px rgba(74, 222, 128, 0.5);
}
.btn-ghost {
  border-color: var(--border);
  color: var(--text);
  background: var(--bg-soft);
}
.btn-ghost:hover {
  border-color: #2c3542;
  background: var(--surface);
  transform: translateY(-1px);
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-soft);
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  overflow: hidden;
}
.stats > div {
  background: var(--bg);
  padding: 22px 20px;
}
.stats dt {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.02em;
}
.stats dd {
  font-size: 12.5px;
  color: var(--text-faint);
  margin-top: 4px;
}

/* ---------- Cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 48px;
}
.card {
  background: var(--bg-soft);
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  padding: 26px;
  transition: border-color 0.25s ease, transform 0.25s ease, background 0.25s ease;
}
.card:hover {
  border-color: #2a3340;
  background: var(--surface);
  transform: translateY(-3px);
}
.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
.card-icon {
  display: grid;
  place-items: center;
  width: 36px; height: 36px;
  border-radius: 9px;
  background: var(--accent-glow);
  border: 1px solid rgba(74, 222, 128, 0.22);
  color: var(--accent);
}
.card-icon svg { width: 18px; height: 18px; }
.card-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.card h3 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-bottom: 10px;
}
.card p {
  font-size: 14.5px;
  color: var(--text-dim);
  margin-bottom: 20px;
}
.chips { display: flex; flex-wrap: wrap; gap: 7px; }
.chips li {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-dim);
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
}

/* ---------- Stack ---------- */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 48px;
}
.stack-col h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-faint);
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--border-soft);
}
.stack-col li {
  font-size: 14.5px;
  color: var(--text-dim);
  padding: 5px 0;
  transition: color 0.2s ease, padding-left 0.2s ease;
}
.stack-col li:hover { color: var(--accent); padding-left: 5px; }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
  align-items: start;
}
.about-body p {
  color: var(--text-dim);
  font-size: 16px;
  margin-bottom: 18px;
}
.about-body p:last-child { margin-bottom: 0; }

/* ---------- Contact ---------- */
.contact-inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}
.contact-inner .section-label { margin-bottom: 16px; }
.contact-inner h2 {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 18px;
}
.contact-lede {
  color: var(--text-dim);
  font-size: 16.5px;
  margin-bottom: 34px;
}
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

/* ---------- Footer ---------- */
.footer {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  padding: 32px 28px 48px;
  border-top: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 13px;
  color: var(--text-faint);
}
.footer-note { font-family: var(--font-mono); font-size: 12px; }

/* ---------- Reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .stack-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .about-grid { grid-template-columns: 1fr; gap: 28px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  .nav { padding: 16px 20px; }
  .nav-links { gap: 18px; }
  .nav-links a:not(.nav-cta) { display: none; }
  .hero { padding: 64px 20px 72px; }
  .section { padding: 68px 20px; }
  .cards { grid-template-columns: 1fr; }
  .hero-actions .btn { flex: 1 1 auto; justify-content: center; }
  .footer { flex-direction: column; align-items: flex-start; padding: 28px 20px 40px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}