* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: #121817;
  background: #f5f8f6;
  font-family: Inter, Arial, sans-serif;
}

a {
  color: inherit;
}

.seo-shell {
  min-height: 100vh;
}

.seo-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px clamp(18px, 5vw, 72px);
  border-bottom: 1px solid rgba(18, 24, 23, 0.08);
  background: rgba(255, 255, 255, 0.92);
}

.seo-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.seo-brand img {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  object-fit: contain;
  background: #fff;
}

.seo-brand strong {
  display: block;
  font-size: 15px;
}

.seo-brand span {
  display: block;
  margin-top: 2px;
  color: #66716d;
  font-size: 12px;
  font-weight: 700;
}

.seo-nav-links {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.seo-nav-links a {
  color: #37413d;
  font-size: 13px;
  font-weight: 850;
  text-decoration: none;
}

.seo-nav-links a:hover,
.seo-nav-links a:focus-visible {
  color: #000;
  text-decoration: underline;
}

.seo-main {
  display: grid;
  gap: 28px;
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: 46px 0 64px;
}

.seo-hero {
  display: grid;
  gap: 16px;
  padding: clamp(28px, 5vw, 56px);
  border: 1px solid rgba(18, 24, 23, 0.08);
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 24px 60px rgba(18, 24, 23, 0.08);
}

.seo-kicker {
  margin: 0;
  color: #1e5f50;
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.seo-hero h1 {
  max-width: 860px;
  margin: 0;
  font-size: clamp(34px, 6vw, 68px);
  line-height: 0.98;
  letter-spacing: 0;
}

.seo-hero p {
  max-width: 780px;
  margin: 0;
  color: #5f6b66;
  font-size: clamp(16px, 2vw, 20px);
  font-weight: 700;
  line-height: 1.55;
}

.seo-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.seo-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 10px;
  padding: 0 18px;
  background: #0f1715;
  color: #fff;
  font-weight: 950;
  text-decoration: none;
}

.seo-button.secondary {
  border: 1px solid rgba(18, 24, 23, 0.14);
  background: #fff;
  color: #0f1715;
}

.seo-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
}

.seo-card,
.seo-section {
  border: 1px solid rgba(18, 24, 23, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 16px 40px rgba(18, 24, 23, 0.06);
}

.seo-card {
  display: grid;
  gap: 10px;
  padding: 20px;
  text-decoration: none;
}

.seo-card small {
  color: #1e5f50;
  font-size: 11px;
  font-weight: 950;
  text-transform: uppercase;
}

.seo-card strong {
  font-size: 22px;
  line-height: 1.12;
}

.seo-card p {
  margin: 0;
  color: #66716d;
  font-weight: 700;
  line-height: 1.5;
}

.seo-section {
  display: grid;
  gap: 14px;
  padding: clamp(22px, 4vw, 34px);
}

.seo-section h2 {
  margin: 0;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.08;
}

.seo-section p,
.seo-section li {
  color: #5f6b66;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.65;
}

.seo-section p {
  margin: 0;
}

.seo-section ol,
.seo-section ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 22px;
}

.seo-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
  padding: 0 0 34px;
  color: #66716d;
  font-size: 13px;
  font-weight: 750;
}

.seo-footer a {
  font-weight: 900;
}

@media (max-width: 720px) {
  .seo-nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .seo-nav-links {
    width: 100%;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 4px;
  }

  .seo-card-grid {
    grid-template-columns: 1fr;
  }
}