.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: rgba(239, 244, 239, 0.98);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 24px rgba(42, 21, 0, 0.08);
  backdrop-filter: blur(14px);
}

.site-nav__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 40px;
  height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-nav__logo {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 400;
  color: var(--brown-mid);
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color 0.25s, text-shadow 0.25s;
}

.site-nav__logo span {
  color: var(--terra);
}

.site-nav__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-width: 44px;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--brown-mid);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.25s, border-color 0.25s, color 0.25s;
}

.site-nav__toggle-line {
  display: block;
  width: 16px;
  height: 1.5px;
  background: currentColor;
  border-radius: 999px;
}

.site-nav__toggle-stack {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.site-nav__links a {
  font-size: 13px;
  color: var(--brown-text);
  text-decoration: none;
  transition: color 0.2s, opacity 0.2s, text-shadow 0.2s;
}

.site-nav__links a:hover {
  color: var(--brown-mid);
}

.site-nav__cta {
  font-size: 13px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 100px;
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
  text-decoration: none;
  transition: background 0.2s, transform 0.15s, color 0.2s, border-color 0.2s;
}

.site-nav__cta:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
}

body.has-site-nav {
  padding-top: 66px;
}

.has-site-nav .topic-shell {
  padding-top: 24px;
}

.has-site-nav .article-shell {
  padding-top: 32px;
}

@media (max-width: 600px) {
  .site-nav__inner {
    padding: 0 24px;
    position: relative;
  }

  .site-nav__toggle {
    display: inline-flex;
  }

  .site-nav__links {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 24px;
    right: 24px;
    z-index: 220;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 18px;
    background: rgba(239, 244, 239, 0.98);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: 0 20px 44px rgba(20, 32, 26, 0.12);
  }

  .site-nav__links.is-open {
    display: flex;
  }

  .site-nav__links a {
    font-size: 15px;
  }

  .site-nav__cta {
    justify-content: center;
    padding: 14px 18px;
  }

  .has-site-nav .topic-shell {
    padding-top: 18px;
  }

  .has-site-nav .article-shell {
    padding-top: 24px;
  }
}