:root {
  --success: #126b43;
  --success-soft: #e6f4ec;
  --warning: #8a5a00;
  --warning-soft: #fff4dc;
  --danger-soft: #ffdad6;
}

.site-nav {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
  white-space: nowrap;
}
.site-nav::-webkit-scrollbar { display: none; }
.nav-shell > :last-child { justify-self: end; }

.verified-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 14px;
  padding: 7px 10px;
  border: 1px solid #b8d9c8;
  border-radius: 999px;
  background: var(--success-soft);
  color: var(--success);
  font-size: 12px;
  font-weight: 700;
}
.review-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 12px;
}
.review-meta a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }

.quality-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: -8px 0 40px;
  overflow: hidden;
  border: 1px solid var(--outline-soft);
  border-radius: 8px;
  background: var(--outline-soft);
  box-shadow: var(--shadow);
}
.quality-item {
  display: flex;
  min-height: 86px;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  background: var(--surface);
}
.quality-icon {
  display: grid;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 50%;
  background: var(--success-soft);
  color: var(--success);
  font-size: 14px;
  font-weight: 800;
}
.quality-item strong { display: block; color: var(--primary); font-size: 14px; }
.quality-item span { display: block; margin-top: 2px; color: var(--muted); font-size: 12px; }

.hero-search {
  display: flex;
  gap: 10px;
  width: min(100%, 620px);
  margin-top: 26px;
}
.hero-search .search-box { flex: 1; width: auto; }
.hero-search .btn { min-width: 112px; }

.section-heading-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin: 44px 0 20px;
}
.section-heading-row h2 { margin: 3px 0 0; color: var(--primary); font-size: 25px; }
.section-heading-row > a { color: var(--blue); font-size: 13px; font-weight: 700; }
.section-kicker {
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.task-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.task-card {
  display: flex;
  min-height: 138px;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px;
  border: 1px solid var(--outline-soft);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.task-card span { color: var(--muted); font-size: 12px; }
.task-card strong { color: var(--primary); font-size: 17px; line-height: 1.45; }
.task-card small { color: var(--blue); font-weight: 700; }

.catalog-toolbar {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto;
  gap: 18px;
  align-items: center;
  margin: 26px 0 22px;
}
.catalog-search {
  position: relative;
}
.catalog-search input {
  width: 100%;
  min-height: 54px;
  padding: 0 86px 0 44px;
  border: 1px solid var(--outline-soft);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  outline: none;
}
.catalog-search input:focus { border: 2px solid var(--blue); }
.catalog-search .search-icon { left: 16px; }
.search-clear {
  position: absolute;
  top: 50%;
  right: 10px;
  min-height: 34px;
  padding: 0 10px;
  border: 0;
  border-radius: 4px;
  background: var(--surface-low);
  color: var(--muted);
  cursor: pointer;
  transform: translateY(-50%);
}
.filter-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 2px;
}
.filter-button {
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--outline-soft);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  white-space: nowrap;
}
.filter-button.is-active {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
}
.catalog-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
  color: var(--muted);
  font-size: 12px;
}
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.catalog-grid [hidden] { display: none !important; }
.calc-card {
  display: flex;
  min-height: 230px;
  flex-direction: column;
  padding: 22px;
  border: 1px solid var(--outline-soft);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  transition: transform .16s ease, border-color .16s ease;
}
.calc-card:hover { transform: translateY(-2px); border-color: var(--blue); }
.calc-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.calc-category {
  color: var(--blue);
  font-size: 11px;
  font-weight: 800;
}
.calc-card h2 { margin: 22px 0 8px; color: var(--primary); font-size: 21px; }
.calc-card p { margin: 0; color: var(--muted); font-size: 13px; }
.calc-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 22px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 700;
}
.calc-status {
  color: var(--success);
  font-size: 10px;
  font-weight: 700;
}
.no-results {
  padding: 34px;
  border: 1px dashed var(--outline-soft);
  border-radius: 8px;
  background: var(--surface-low);
  text-align: center;
}
.no-results h3 { margin: 0 0 6px; color: var(--primary); }
.no-results p { margin: 0; color: var(--muted); font-size: 13px; }

.recent-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.recent-link {
  display: flex;
  min-height: 86px;
  flex-direction: column;
  justify-content: space-between;
  padding: 16px;
  border: 1px solid var(--outline-soft);
  border-radius: 6px;
  background: var(--surface);
}
.recent-link span { color: var(--primary); font-size: 14px; font-weight: 700; }
.recent-link small { color: var(--blue); }

.tool-grid.tool-grid-expanded { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.tool-card .tool-meta { margin-top: 12px; color: var(--muted); font-size: 11px; }
.tool-card .tool-meta strong { color: var(--success); }

.form-status {
  display: none;
  margin-top: 18px;
  padding: 11px 13px;
  border-radius: 4px;
  font-size: 12px;
}
.form-status.is-visible { display: block; }
.form-status[data-type="error"] { background: var(--danger-soft); color: #93000a; }
.form-status[data-type="success"] { background: var(--success-soft); color: var(--success); }
.form-status[data-type="info"] { background: #eaf2ff; color: #234a78; }
button:disabled { cursor: not-allowed; opacity: .48; }

.related-calculators { margin-top: 42px; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.related-grid a {
  display: flex;
  min-height: 94px;
  flex-direction: column;
  justify-content: space-between;
  padding: 17px;
  border: 1px solid var(--outline-soft);
  border-radius: 6px;
  background: var(--surface);
}
.related-grid strong { color: var(--primary); font-size: 14px; }
.related-grid span { color: var(--blue); font-size: 11px; font-weight: 700; }

.content-rich { content-visibility: auto; contain-intrinsic-size: 700px; }
.article-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr);
  gap: 32px;
  align-items: start;
  margin-top: 40px;
}
.article-card { padding: 30px; }
.article-card h2 { margin: 0 0 16px; color: var(--primary); font-size: 24px; }
.article-card h3 { margin: 28px 0 10px; color: var(--primary); font-size: 18px; }
.article-card p, .article-card li { color: var(--muted); font-size: 14px; }
.article-card ul, .article-card ol { padding-left: 20px; }
.article-card a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }
.source-card { position: sticky; top: 104px; padding: 24px; }
.source-card h2 { margin: 0 0 14px; color: var(--primary); font-size: 18px; }
.source-list { display: grid; gap: 12px; margin: 0; padding: 0; list-style: none; }
.source-list a {
  display: block;
  padding: 12px;
  border: 1px solid var(--outline-soft);
  border-radius: 4px;
  background: var(--surface-low);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
}
.source-list small { display: block; margin-top: 3px; color: var(--muted); font-weight: 400; }
.formula-box {
  margin: 18px 0;
  padding: 18px;
  border-left: 4px solid var(--blue);
  background: var(--surface-low);
  color: var(--primary);
  font-size: 15px;
  font-weight: 700;
}
.assumption-list { display: grid; gap: 10px; margin: 20px 0 0; padding: 0; list-style: none; }
.assumption-list li { display: grid; grid-template-columns: 22px 1fr; gap: 9px; }
.assumption-list .mark { color: var(--success); font-weight: 800; }

.trust-banner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 28px;
  align-items: center;
  margin: 40px 0;
  padding: 30px;
  border-radius: 8px;
  background: var(--result);
  color: #fff;
  box-shadow: var(--shadow-result);
}
.trust-banner h2 { margin: 0 0 8px; font-size: 24px; }
.trust-banner p { margin: 0; color: #c8d3e2; font-size: 14px; }
.trust-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.trust-stat { padding: 14px; border: 1px solid rgba(255,255,255,.18); border-radius: 4px; }
.trust-stat strong { display: block; font-size: 22px; }
.trust-stat span { color: #b7c7e4; font-size: 11px; }

.status-table-wrap { overflow-x: auto; }
.status-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.status-table th, .status-table td { padding: 14px; border-bottom: 1px solid #e1e4e7; text-align: left; vertical-align: top; }
.status-table th { color: var(--primary); background: var(--surface-low); }
.status-pass { color: var(--success); font-weight: 700; }

.policy-layout { display: grid; gap: 24px; max-width: 900px; }
.policy-card { padding: 30px; }
.policy-card h2 { margin: 0 0 12px; color: var(--primary); font-size: 22px; }
.policy-card h3 { margin: 24px 0 8px; color: var(--primary); font-size: 17px; }
.policy-card p, .policy-card li { color: var(--muted); font-size: 14px; }
.policy-card a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }

.footer-links { flex-wrap: wrap; justify-content: flex-end; }
.result-notice-gap { margin-top: 8px; }
.input-note {
  margin: 10px 0 0;
  padding: 12px;
  border: 1px solid var(--outline-soft);
  border-radius: 4px;
  background: var(--surface-low);
  color: var(--muted);
  font-size: 12px;
}
.mini-result-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 18px; }
.mini-result { padding: 14px; border: 1px solid #e0e3e5; border-radius: 4px; background: var(--surface-low); }
.mini-result span { display: block; color: var(--muted); font-size: 11px; }
.mini-result strong { display: block; margin-top: 4px; color: var(--primary); font-size: 16px; font-variant-numeric: tabular-nums; }

@media (max-width: 1050px) {
  .tool-grid.tool-grid-expanded { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .task-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .quality-strip, .article-grid, .trust-banner { grid-template-columns: 1fr; }
  .source-card { position: static; }
  .catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .catalog-toolbar { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .recent-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .nav-shell { grid-template-columns: auto minmax(0, 1fr); }
  .nav-shell > :last-child { display: none; }
  .site-nav { justify-content: flex-start; }
  .site-nav a { padding-inline: 2px; font-size: 12px; }
  .quality-strip, .catalog-grid, .tool-grid.tool-grid-expanded, .mini-result-grid, .task-grid, .recent-grid { grid-template-columns: 1fr; }
  .quality-item { min-height: 72px; }
  .article-card, .policy-card { padding: 22px; }
  .trust-stats { grid-template-columns: 1fr 1fr; }
  .hero-search { flex-direction: column; }
  .hero-search .btn { width: 100%; }
  .section-heading-row { align-items: flex-start; flex-direction: column; gap: 8px; }
}