:root {
  --bg: #0b1220;
  --bg-soft: #101a2d;
  --surface: rgba(11, 18, 32, 0.78);
  --surface-strong: rgba(16, 26, 45, 0.92);
  --text: #f3f6fb;
  --muted: #a8b4c8;
  --line: rgba(168, 180, 200, 0.18);
  --accent: #ff8a3d;
  --accent-soft: #ffc78f;
  --ok: #7df9c1;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --radius: 28px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(255, 138, 61, 0.2), transparent 30%),
    radial-gradient(circle at bottom left, rgba(125, 249, 193, 0.12), transparent 28%),
    linear-gradient(180deg, #050914 0%, #0b1220 100%);
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(circle at center, black 40%, transparent 92%);
  pointer-events: none;
}

.topbar,
.hero,
.section,
.footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  color: #101010;
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  box-shadow: var(--shadow);
}

.brand-text,
.nav a,
.button {
  font-family: "Space Grotesk", sans-serif;
}

.nav {
  display: flex;
  gap: 18px;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  transition: color 180ms ease;
}

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

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 24px;
  padding: 56px 0 24px;
  align-items: stretch;
}

.hero-copy,
.hero-panel,
.card,
.stack-box,
.flow-item,
.footer {
  border: 1px solid var(--line);
  background: var(--surface);
  backdrop-filter: blur(18px);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 40px;
}

.hero h1,
.section h2,
.footer h2 {
  margin: 0;
  line-height: 0.98;
  letter-spacing: -0.04em;
  font-family: "Space Grotesk", sans-serif;
}

.hero h1 {
  font-size: clamp(3rem, 7vw, 5.8rem);
  max-width: 10ch;
}

.lead {
  margin: 24px 0 0;
  max-width: 58ch;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--muted);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent-soft);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.78rem;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  color: #141414;
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
}

.button.ghost {
  color: var(--text);
  border: 1px solid var(--line);
}

.hero-panel {
  padding: 24px;
  display: grid;
  gap: 16px;
}

.metric {
  padding: 18px;
  border-radius: 22px;
  background: var(--surface-strong);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.metric span {
  display: block;
  color: var(--muted);
  margin-bottom: 10px;
}

.metric strong {
  font-size: 1.12rem;
}

.section {
  padding: 28px 0;
}

.section-heading {
  margin-bottom: 22px;
}

.section h2,
.footer h2 {
  font-size: clamp(2rem, 4.6vw, 3.8rem);
}

.cards,
.stack-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.card,
.stack-box {
  padding: 24px;
}

.card h3,
.stack-box h3,
.flow-item h3 {
  margin: 0 0 12px;
  font-size: 1.1rem;
}

.card p,
.stack-box p,
.flow-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.accent {
  position: relative;
}

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

.flow-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 18px;
  padding: 24px;
  align-items: start;
}

.flow-index {
  width: 72px;
  height: 72px;
  border-radius: 24px;
  display: grid;
  place-items: center;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.25rem;
  color: var(--ok);
  background: rgba(125, 249, 193, 0.08);
  border: 1px solid rgba(125, 249, 193, 0.16);
}

.footer {
  margin-top: 24px;
  margin-bottom: 32px;
  padding: 26px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.contact-list {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.contact-list a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.contact-list a:hover {
  border-color: var(--accent);
}

.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.hero-copy,
.hero-panel,
.card,
.stack-box,
.flow-item {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 500ms ease, transform 500ms ease;
}

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

@media (max-width: 760px) {
  .topbar {
    position: static;
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .nav {
    flex-wrap: wrap;
  }

  .hero,
  .cards,
  .stack-grid,
  .flow-item,
  .footer {
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .hero-panel,
  .card,
  .stack-box,
  .flow-item,
  .footer {
    padding: 20px;
  }

  .flow-item {
    gap: 14px;
  }

  .footer {
    display: grid;
  }
}