:root {
  --ink-900: #1b1e28;
  --ink-700: #394050;
  --surface-100: #f7f7f4;
  --surface-200: #ebeae4;
  --brand-500: #146c94;
  --brand-600: #0f5675;
  --accent-500: #ce7f3a;
  --card-bg: rgba(255, 255, 255, 0.84);
  --line: rgba(27, 30, 40, 0.12);
  --shadow: 0 12px 30px rgba(16, 30, 41, 0.11);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--ink-900);
  background:
    radial-gradient(circle at 10% 20%, rgba(20, 108, 148, 0.12), transparent 35%),
    radial-gradient(circle at 92% 8%, rgba(206, 127, 58, 0.16), transparent 30%),
    linear-gradient(180deg, #fffef9 0%, #f4f5ef 100%);
  line-height: 1.6;
  overflow-x: hidden;
}

.bg-shape {
  position: fixed;
  width: 22rem;
  height: 22rem;
  border-radius: 50%;
  z-index: -1;
  filter: blur(1px);
}

.bg-shape-a {
  left: -8rem;
  top: 6rem;
  background: radial-gradient(circle, rgba(20, 108, 148, 0.2), rgba(20, 108, 148, 0));
}

.bg-shape-b {
  right: -8rem;
  bottom: 8rem;
  background: radial-gradient(circle, rgba(206, 127, 58, 0.25), rgba(206, 127, 58, 0));
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
  background: rgba(255, 255, 255, 0.75);
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 5vw;
  z-index: 10;
}

.brand {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--ink-900);
  text-decoration: none;
}

.top-nav {
  display: flex;
  gap: 1rem;
}

.top-nav a {
  color: var(--ink-700);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

.top-nav a:hover {
  color: var(--brand-600);
}

main {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.hero {
  padding: 5.5rem 0 3rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--brand-600);
  margin-bottom: 0.5rem;
}

h1,
h2,
h3 {
  font-family: "Space Grotesk", sans-serif;
  line-height: 1.2;
  margin-top: 0;
}

h1 {
  font-size: clamp(2rem, 6vw, 3.6rem);
  max-width: 16ch;
  margin-bottom: 1rem;
}

.hero-text {
  max-width: 67ch;
  color: var(--ink-700);
}

.hero-actions {
  margin-top: 1.4rem;
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  border-radius: 999px;
  padding: 0.65rem 1.1rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

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

.btn-primary {
  background: var(--brand-500);
  color: #fff;
  box-shadow: 0 8px 18px rgba(20, 108, 148, 0.25);
}

.btn-primary:hover {
  background: var(--brand-600);
}

.btn-secondary {
  color: var(--ink-900);
  border-color: rgba(27, 30, 40, 0.2);
  background: rgba(255, 255, 255, 0.85);
}

.hero-metrics {
  margin-top: 2rem;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.8rem;
}

.hero-metrics li {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1rem;
  box-shadow: var(--shadow);
}

.hero-metrics strong {
  font-size: 1.6rem;
  display: block;
}

.hero-metrics span {
  color: var(--ink-700);
  font-size: 0.92rem;
}

.section {
  padding: 3rem 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

.card {
  border: 1px solid var(--line);
  background: var(--card-bg);
  border-radius: 1rem;
  padding: 1.1rem;
  box-shadow: var(--shadow);
}

.card p {
  margin-bottom: 0;
  color: var(--ink-700);
}

.split {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.2rem;
}

.check-list {
  padding-left: 1.2rem;
}

.highlight {
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: linear-gradient(145deg, rgba(206, 127, 58, 0.17), rgba(255, 255, 255, 0.8));
  padding: 1.2rem;
}

.highlight p {
  margin: 0.45rem 0;
}

.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.8rem;
}

.stack-grid div {
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  background: rgba(255, 255, 255, 0.8);
  padding: 0.9rem;
}

.stack-grid span {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-700);
}

.cta {
  border-top: 1px solid var(--line);
}

.site-footer {
  margin-top: 2rem;
  padding: 1.6rem 5vw 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--ink-700);
  font-size: 0.92rem;
  text-align: center;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 560ms ease, transform 560ms ease;
}

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

@media (max-width: 840px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.55rem;
  }

  .top-nav {
    flex-wrap: wrap;
  }

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

@media (max-width: 560px) {
  .hero {
    padding-top: 4rem;
  }

  .hero-metrics li {
    padding: 0.85rem;
  }
}