.site-header {
  min-height: 64px;
  padding: 0 clamp(18px, 4vw, 64px);
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 26px;
  color: var(--ink, #172033);
  background: rgba(255, 255, 255, .92);
  border-bottom: 1px solid var(--line, #d9ded8);
  backdrop-filter: blur(16px);
}

.site-brand {
  position: relative;
  z-index: 2;
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.035em;
}

.site-brand::before {
  width: 11px;
  height: 11px;
  content: "";
  background: var(--accent, #315ee7);
  border-radius: 3px;
  box-shadow: 5px 5px 0 color-mix(in srgb, var(--accent, #315ee7) 24%, white);
}

.site-primary {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 14px;
}

.site-primary a {
  padding: 20px 0 18px;
  border-bottom: 2px solid transparent;
}

.site-primary a:hover {
  color: var(--accent, #315ee7);
  border-bottom-color: var(--accent, #315ee7);
}

.site-actions {
  position: relative;
  z-index: 2;
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-language-picker {
  position: relative;
}

.site-language-picker > .sr-only {
  width: 1px;
  height: 1px;
  padding: 0;
  position: absolute;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-language-picker select {
  min-height: 40px;
  padding: 7px 30px 7px 11px;
  color: inherit;
  background: #fff;
  border: 1px solid var(--line-strong, #b8c0b9);
  border-radius: 8px;
  font: inherit;
  font-size: 13px;
  font-weight: 720;
  cursor: pointer;
}

.site-language-picker select:hover,
.site-language-picker select:focus-visible {
  border-color: var(--accent, #315ee7);
}

.site-menu {
  position: relative;
}

.site-menu summary {
  min-height: 40px;
  padding: 7px 13px;
  display: flex;
  align-items: center;
  gap: 9px;
  cursor: pointer;
  list-style: none;
  border: 1px solid var(--line-strong, #b8c0b9);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 720;
}

.site-menu summary::-webkit-details-marker { display: none; }
.site-menu summary span { transition: transform 150ms ease; }
.site-menu[open] summary span { transform: rotate(180deg); }

.site-menu-panel {
  width: min(560px, calc(100vw - 40px));
  max-height: min(560px, calc(100dvh - 84px));
  padding: 22px;
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  overflow-y: auto;
  color: var(--ink, #172033);
  background: #fff;
  border: 1px solid var(--line, #d9ded8);
  border-radius: 12px;
  box-shadow: 0 22px 52px rgba(23, 32, 51, .16);
}

.site-menu-sections {
  margin-bottom: 18px;
  padding-bottom: 18px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  border-bottom: 1px solid var(--line, #d9ded8);
}

.site-menu-sections a {
  min-height: 38px;
  display: grid;
  place-items: center;
  color: #4f5967;
  border: 1px solid var(--line, #d9ded8);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
}

.site-menu-label {
  margin: 0 0 12px;
  color: var(--accent, #315ee7);
  font-size: 11px;
  font-weight: 750;
}

.site-tool-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.site-tool-links a {
  min-height: 58px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: #f6f7f4;
  border: 1px solid var(--line, #d9ded8);
  border-radius: 8px;
}

.site-menu-panel a:hover,
.site-menu-panel a[aria-current="page"] {
  color: var(--accent, #315ee7);
  background: var(--accent-soft, #e9efff);
  border-color: #b9c8fa;
}

.site-tool-links span { font-weight: 720; }
.site-tool-links small { color: #7a8490; font-size: 11px; }

.site-menu-backdrop {
  padding: 0;
  position: fixed;
  z-index: 1;
  inset: 64px 0 0;
  display: none;
  background: rgba(20, 27, 41, .32);
  border: 0;
}

.site-header.is-menu-open .site-menu-backdrop { display: block; }
.site-fallback { justify-self: end; font-size: 13px; font-weight: 700; }

.site-info-footer {
  padding: 30px clamp(18px, 4vw, 64px);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  color: #9fa8b7;
  background: #141b29;
  border-top: 1px solid #30394a;
  font-size: 13px;
}

.site-info-footer > div { max-width: 520px; }
.site-info-footer p { margin: 7px 0 0; }
.site-info-brand { color: #f2f4f8; font-size: 18px; font-weight: 800; letter-spacing: -.035em; }
.site-info-footer nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px 22px; }
.site-info-footer nav a { min-height: 44px; display: inline-flex; align-items: center; color: #d5dae3; }
.site-info-footer nav a:hover,
.site-info-footer nav a[aria-current="page"] {
  color: #9bb2ff;
  text-decoration: underline;
  text-underline-offset: 5px;
}

.related-tool-section {
  margin: 18px clamp(18px, 4vw, 64px) clamp(52px, 7vw, 88px);
  padding: clamp(26px, 4vw, 44px);
  color: var(--ink, #172033);
  background: #ecefea;
  border-radius: 14px;
}

.related-tool-section h2 { margin: 0 0 20px; font-size: clamp(25px, 3vw, 38px); letter-spacing: -.04em; }
.related-tool-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.related-tool-grid a {
  min-width: 0;
  min-height: 104px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: #fff;
  border: 1px solid var(--line, #d9ded8);
  border-radius: 10px;
}
.related-tool-grid a:hover { border-color: var(--accent, #315ee7); }
.related-tool-grid strong { font-size: 17px; }
.related-tool-grid span { color: #626b78; font-size: 13px; }

.tool-insight-section {
  margin: clamp(34px, 5vw, 64px) clamp(18px, 4vw, 64px) 18px;
}

.tool-insight-section > header {
  max-width: 720px;
  margin-bottom: 20px;
}

.tool-insight-section h2 {
  margin: 0;
  font-size: clamp(25px, 3vw, 38px);
  letter-spacing: -.04em;
}

.tool-insight-section > header p {
  margin: 9px 0 0;
  color: #68716e;
  line-height: 1.7;
}

.tool-insight-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.tool-insight-grid article {
  min-width: 0;
  padding: clamp(20px, 2.5vw, 28px);
  background: #fff;
  border: 1px solid var(--line, #d9ded8);
  border-radius: 12px;
}

.tool-insight-grid h3 {
  margin: 0 0 10px;
  font-size: 17px;
  letter-spacing: -.02em;
}

.tool-insight-grid p {
  margin: 0;
  color: #626b78;
  font-size: 14px;
  line-height: 1.7;
}

@media (max-width: 1023px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-primary { display: none; }
}

@media (max-width: 767px) {
  .site-header { min-height: 64px; padding: 0 16px; }
  .site-brand { font-size: 16px; }
  .site-actions { gap: 6px; }
  .site-language-picker select { padding-right: 25px; padding-left: 8px; font-size: 12px; }
  .site-menu summary { min-height: 40px; padding: 7px 12px; }
  .site-menu-panel {
    width: auto;
    max-height: calc(100dvh - 76px);
    padding: 16px;
    position: fixed;
    top: 70px;
    right: 12px;
    left: 12px;
  }
  .site-menu-backdrop { inset: 64px 0 0; }
  .site-menu-sections { margin-bottom: 14px; padding-bottom: 14px; grid-template-columns: repeat(2, 1fr); }
  .site-menu-label { margin-bottom: 9px; }
  .site-tool-links a { min-height: 46px; padding: 7px 11px; }
  .site-tool-links small { display: none; }
  .site-info-footer { flex-direction: column; gap: 20px; }
  .site-info-footer nav { justify-content: flex-start; }
  .related-tool-section { margin-right: 16px; margin-left: 16px; }
  .related-tool-grid { grid-template-columns: 1fr; }
  .related-tool-grid a { min-height: 82px; }
  .tool-insight-section { margin-right: 16px; margin-left: 16px; }
  .tool-insight-grid { grid-template-columns: 1fr; }
}

@media (max-width: 374px) {
  .site-menu-sections { grid-template-columns: repeat(2, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
  .site-menu summary span { transition: none; }
}