:root {
  --ink: #111827;
  --muted: #647084;
  --line: #d9e1ea;
  --paper: #f7f5ef;
  --white: #ffffff;
  --navy: #17324d;
  --blue: #2d6f9f;
  --red: #b84032;
  --gold: #d49a45;
  --shadow: 0 22px 70px rgba(17, 31, 48, 0.16);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.seo-header,
.seo-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  padding: 22px clamp(18px, 5vw, 72px);
  color: var(--white);
  background: #0f2235;
}

.seo-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
}

.seo-brand span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 13px;
  letter-spacing: 0.08em;
}

.seo-header nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 14px;
}

.seo-hero {
  padding: clamp(70px, 9vw, 118px) clamp(18px, 5vw, 72px);
  color: var(--white);
  background:
    linear-gradient(110deg, rgba(15, 34, 53, 0.97), rgba(23, 50, 77, 0.88)),
    url("assets/aviation-hero.png") center / cover;
}

.sample-hero {
  background:
    linear-gradient(110deg, rgba(15, 34, 53, 0.96), rgba(23, 50, 77, 0.82)),
    url("assets/aviation-hero.png") center / cover;
}

.seo-hero-inner {
  width: min(1080px, 100%);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 880px;
  margin-bottom: 22px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.04;
}

.seo-hero p:not(.eyebrow) {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.75;
}

.seo-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.primary-cta,
.secondary-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 6px;
  font-weight: 900;
}

.primary-cta {
  color: var(--white);
  background: var(--red);
}

.secondary-cta {
  border: 1px solid rgba(255, 255, 255, 0.45);
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.seo-content {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
  gap: clamp(28px, 6vw, 78px);
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: clamp(62px, 8vw, 104px) clamp(18px, 5vw, 72px);
}

.article-body {
  display: grid;
  gap: 34px;
}

.article-body section,
.side-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 14px 36px rgba(17, 31, 48, 0.06);
}

.article-body section {
  padding: clamp(24px, 4vw, 38px);
}

.article-body h2 {
  margin-bottom: 14px;
  color: var(--navy);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.15;
}

.article-body p,
.article-body li,
.side-card p,
.side-card li,
.seo-footer small {
  color: var(--muted);
  line-height: 1.75;
}

.article-body ul,
.side-card ul {
  margin: 0;
  padding-left: 20px;
}

.side-stack {
  display: grid;
  align-content: start;
  gap: 18px;
}

.side-card {
  padding: 24px;
}

.side-card strong {
  display: block;
  margin-bottom: 12px;
  color: var(--navy);
  font-size: 20px;
}

.side-card .primary-cta {
  width: 100%;
  margin-top: 14px;
}

.related-links {
  display: grid;
  gap: 10px;
}

.related-links a {
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  color: var(--blue);
  font-weight: 800;
}

.seo-footer {
  align-items: start;
  color: rgba(255, 255, 255, 0.78);
}

.seo-footer small {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.45);
}

.sample-shell {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: clamp(54px, 8vw, 92px) clamp(18px, 5vw, 72px);
}

.sample-cover,
.sample-cta-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  margin-bottom: 18px;
  padding: clamp(26px, 4vw, 42px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 14px 36px rgba(17, 31, 48, 0.06);
}

.sample-cover h2,
.sample-cta-panel h2 {
  margin-bottom: 12px;
  color: var(--navy);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(30px, 4vw, 50px);
  line-height: 1.1;
}

.sample-cover p:not(.eyebrow),
.sample-cta-panel p:not(.eyebrow),
.sample-report-grid p {
  color: var(--muted);
  line-height: 1.7;
}

.sample-stamp {
  display: grid;
  width: 136px;
  height: 136px;
  place-items: center;
  border: 2px solid rgba(184, 64, 50, 0.42);
  border-radius: 50%;
  color: var(--red);
  text-align: center;
  transform: rotate(-8deg);
}

.sample-stamp strong,
.sample-stamp span {
  display: block;
}

.sample-stamp strong {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 28px;
}

.sample-stamp span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.sample-report-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0;
}

.sample-report-grid article {
  min-height: 240px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 14px 36px rgba(17, 31, 48, 0.06);
}

.sample-report-grid span {
  display: inline-grid;
  width: 40px;
  height: 40px;
  place-items: center;
  margin-bottom: 22px;
  border-radius: 50%;
  color: var(--white);
  background: var(--blue);
  font-family: Georgia, "Times New Roman", serif;
}

.sample-report-grid h3 {
  margin-bottom: 12px;
  color: var(--navy);
  font-size: 22px;
}

.sample-cta-panel {
  margin-top: 18px;
  color: var(--white);
  background: var(--navy);
}

.sample-cta-panel h2 {
  color: var(--white);
}

.sample-cta-panel p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.72);
}

@media (max-width: 900px) {
  .seo-header,
  .seo-footer,
  .seo-content {
    grid-template-columns: 1fr;
  }

  .seo-header,
  .seo-footer {
    display: grid;
  }

  .seo-content {
    display: grid;
  }

  .sample-cover,
  .sample-cta-panel,
  .sample-report-grid {
    grid-template-columns: 1fr;
  }

  .sample-stamp {
    width: 112px;
    height: 112px;
  }
}