:root {
  --ink: #0c1726;
  --muted: #526579;
  --line: #d8e4ef;
  --soft: #f3f8fc;
  --panel: #ffffff;
  --blue: #176fd3;
  --teal: #008b84;
  --amber: #b87713;
  --deep: #071221;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--soft);
  line-height: 1.65;
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 64px;
  padding: 0 32px;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  font-weight: 800;
  color: var(--ink);
  letter-spacing: 0;
}

.navlinks {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 0.92rem;
  font-weight: 650;
}

.hero {
  max-width: 1120px;
  margin: 0 auto;
  padding: 88px 28px 54px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

h1 {
  max-width: 860px;
  margin: 0;
  font-size: clamp(2.1rem, 5vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.lead {
  max-width: 780px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 1.15rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  font-weight: 750;
}

.button.primary {
  border-color: var(--blue);
  background: var(--blue);
  color: white;
}

.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 34px 28px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
}

.split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 24px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.card {
  min-height: 150px;
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

h2 {
  margin: 0 0 14px;
  font-size: clamp(1.45rem, 3vw, 2rem);
  line-height: 1.15;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

p {
  margin: 0 0 14px;
}

ul,
ol {
  margin: 0;
  padding-left: 1.2rem;
}

li + li {
  margin-top: 7px;
}

.note {
  border-left: 4px solid var(--amber);
  padding: 16px 18px;
  background: #fff8ed;
  color: #493312;
  border-radius: 0 8px 8px 0;
}

.related {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.related a {
  display: inline-flex;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: white;
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 650;
}

.site-footer {
  margin-top: 48px;
  padding: 34px 28px;
  color: #c8d7e6;
  background: var(--deep);
}

.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.footer-links a {
  color: #e7f1fb;
}

@media (max-width: 820px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 22px;
  }

  .navlinks {
    gap: 12px;
  }

  .hero {
    padding: 58px 22px 34px;
  }

  .section {
    padding: 24px 22px;
  }

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