:root {
  --ink: #172027;
  --muted: #5f6d78;
  --line: #d9e0e5;
  --paper: #ffffff;
  --wash: #f4f7f9;
  --blue: #1f5f8b;
  --blue-dark: #153f5f;
  --steel: #71808c;
  --green: #287052;
  --amber: #b56b1d;
  --shadow: 0 18px 42px rgba(25, 42, 56, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

a {
  color: inherit;
}

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
}

.header-inner,
.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.header-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  text-decoration: none;
  line-height: 1.15;
}

.brand strong {
  font-size: 18px;
  letter-spacing: 0;
}

.brand span {
  color: var(--muted);
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 14px;
}

.site-nav a {
  text-decoration: none;
  color: var(--muted);
}

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

.nav-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 700;
  border: 1px solid transparent;
}

.nav-cta {
  color: #fff !important;
  background: var(--blue);
}

.hero {
  position: relative;
  min-height: 760px;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
}

.hero-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  filter: brightness(0.46) saturate(0.92);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(2, 10, 18, 0.62) 0%, rgba(5, 18, 30, 0.48) 42%, rgba(5, 18, 30, 0.24) 72%, rgba(5, 18, 30, 0.12) 100%),
    linear-gradient(180deg, rgba(2, 10, 18, 0.18) 0%, rgba(2, 10, 18, 0.03) 46%, rgba(2, 10, 18, 0.22) 100%);
}

.hero-content {
  position: relative;
  padding: 108px 0 132px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--amber);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 12px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.55);
}

.hero h1,
.article-hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.04;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 860px;
  text-shadow: 0 3px 18px rgba(0, 0, 0, 0.62);
}

.hero-copy {
  max-width: 720px;
  margin: 22px 0 0;
  font-size: 18px;
  color: rgba(255, 255, 255, 0.86);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.62);
}

.hero-actions,
.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button-primary {
  background: var(--blue);
  color: #fff;
}

.button-light {
  background: #fff;
  color: var(--ink);
}

.button-outline {
  border-color: var(--line);
  color: var(--blue-dark);
  background: #fff;
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  max-width: 960px;
  margin-top: 42px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.proof-item {
  padding: 18px;
  background: rgba(12, 28, 40, 0.46);
}

.proof-item strong {
  display: block;
  font-size: 20px;
}

.proof-item span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
}

.section {
  padding: 74px 0;
}

.section-muted {
  background: var(--wash);
}

.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 32px;
  margin-bottom: 28px;
}

.section-heading h2,
.split-copy h2 {
  margin: 0;
  max-width: 680px;
  font-size: 34px;
  line-height: 1.16;
}

.section-intro,
.split-copy p {
  color: var(--muted);
}

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

.resource-card {
  min-height: 278px;
  display: flex;
  flex-direction: column;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  text-decoration: none;
}

.resource-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.resource-card .tag,
.article-meta .tag {
  width: fit-content;
  padding: 3px 8px;
  border-radius: 4px;
  color: var(--blue-dark);
  background: #e7f0f6;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}

.resource-card h3 {
  margin: 18px 0 10px;
  font-size: 22px;
  line-height: 1.2;
}

.resource-card p {
  margin: 0;
  color: var(--muted);
}

.resource-card span:last-child {
  margin-top: auto;
  color: var(--blue);
  font-weight: 700;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 42px;
  align-items: start;
}

.check-panel,
.note-panel {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.check-panel h3,
.note-panel h3 {
  margin: 0 0 14px;
}

.check-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding: 10px 0 10px 28px;
  border-bottom: 1px solid var(--line);
}

.check-list li:last-child {
  border-bottom: 0;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
}

.topic-table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.topic-table th,
.topic-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.topic-table th {
  color: var(--blue-dark);
  background: #edf3f7;
  font-size: 13px;
  text-transform: uppercase;
}

.topic-table tr:last-child td {
  border-bottom: 0;
}

.cta-band {
  background: var(--blue-dark);
  color: #fff;
}

.cta-band .container {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
}

.cta-band h2 {
  margin: 0;
  font-size: 30px;
}

.cta-band p {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, 0.74);
}

.site-footer {
  padding: 42px 0;
  background: #111b22;
  color: rgba(255, 255, 255, 0.74);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.footer-grid-wide {
  grid-template-columns: 1.4fr repeat(4, minmax(0, 1fr));
}

.site-footer a {
  display: block;
  margin: 6px 0;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.78);
}

.site-footer strong,
.site-footer h2 {
  color: #fff;
}

.site-footer h2 {
  margin: 0 0 10px;
  font-size: 15px;
}

.article-hero {
  padding: 86px 0 48px;
  background: var(--wash);
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 44px;
  padding: 58px 0 82px;
}

.article-body {
  max-width: 800px;
}

.article-body h2 {
  margin: 36px 0 12px;
  font-size: 28px;
  line-height: 1.2;
}

.article-body h3 {
  margin: 24px 0 8px;
  font-size: 20px;
}

.article-body p,
.article-body li {
  color: var(--muted);
}

.article-body ul,
.article-body ol {
  padding-left: 22px;
}

.article-aside {
  position: sticky;
  top: 96px;
  align-self: start;
}

.aside-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.aside-card a {
  display: block;
  margin-top: 10px;
  color: var(--blue);
  font-weight: 700;
  text-decoration: none;
}

@media (max-width: 900px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 0;
  }

  .site-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 6px;
  }

  .hero {
    min-height: 760px;
  }

  .hero-proof,
  .resource-grid,
  .split,
  .footer-grid,
  .article-layout,
  .cta-band .container {
    grid-template-columns: 1fr;
  }

  .section-heading {
    display: block;
  }

  .article-aside {
    position: static;
  }
}

@media (max-width: 560px) {
  .header-inner,
  .container {
    width: min(100% - 28px, 1180px);
  }

  .hero h1,
  .article-hero h1 {
    font-size: 38px;
  }

  .section {
    padding: 52px 0;
  }

  .topic-table {
    font-size: 14px;
  }
}