:root {
  --bg: #f8faf9;
  --panel: #ffffff;
  --text: #18201f;
  --muted: #62706d;
  --line: #d9e3df;
  --accent: #006c67;
  --accent-2: #b45309;
  --badge: #e0f2ef;
  --masthead: #062f2d;
  --shadow: 0 12px 32px rgba(24, 32, 31, .08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1414;
    --panel: #171d1d;
    --text: #eff7f5;
    --muted: #a5b3b0;
    --line: #263231;
    --accent: #44d3c8;
    --accent-2: #fb923c;
    --badge: #123f3b;
    --masthead: #d8fffa;
    --shadow: none;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
  padding: 16px clamp(16px, 4vw, 56px);
  border-bottom: 3px solid var(--accent);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(10px);
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-right: auto;
  font-size: .95rem;
  font-weight: 800;
}

.top-nav a {
  color: var(--muted);
}

.top-nav a:hover {
  color: var(--accent);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0;
  font-weight: 800;
  font-size: 1.55rem;
  line-height: 1;
  color: var(--masthead);
  letter-spacing: 0;
  white-space: nowrap;
}

.brand span {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
}

.brand strong {
  margin-left: 2px;
  border-left: 2px solid var(--accent-2);
  padding-left: 7px;
  color: var(--accent);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: .9em;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.search {
  display: flex;
  gap: 8px;
  width: min(440px, 100%);
}

.search input {
  flex: 1;
  min-width: 0;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
}

button,
.pager a {
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
}

main {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.filters {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 20px 0;
}

.filter,
.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 10px;
  background: var(--badge);
  color: var(--accent);
  font-size: .84rem;
  font-weight: 800;
  white-space: nowrap;
}

.filter.active {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.featured {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr);
  gap: 28px;
  align-items: stretch;
  margin: 6px 0 34px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 30px;
}

.featured img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  border-radius: 8px;
}

.featured-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.featured h1,
.article-page h1 {
  margin: 14px 0 12px;
  font-size: clamp(2rem, 6vw, 4.3rem);
  line-height: 1;
  letter-spacing: 0;
}

.featured p,
.dek {
  color: var(--muted);
  font-size: 1.12rem;
}

.meta,
.source,
.date {
  color: var(--muted);
  font-size: .92rem;
}

.section-title,
.pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.section-title h2,
.related h2 {
  margin: 0;
  font-size: 1.15rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.timeline {
  padding-bottom: 40px;
}

.article-card {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr) 160px;
  gap: 22px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.article-card h3,
.related h3 {
  margin: 10px 0 8px;
  font-size: 1.35rem;
  line-height: 1.2;
}

.article-card p,
.related p {
  margin: 0;
  color: var(--muted);
}

.thumb {
  width: 160px;
  height: 110px;
  object-fit: cover;
  border-radius: 6px;
}

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

.tags a {
  color: var(--accent-2);
  font-weight: 700;
  font-size: .9rem;
}

.pager {
  padding: 24px 0 8px;
}

.pager span {
  color: var(--muted);
}

.empty {
  margin: 28px 0;
  padding: 22px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  text-align: center;
}

.article-page {
  width: min(820px, 100%);
  margin: 32px auto 46px;
}

.article-page .hero-image {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  margin: 26px 0 12px;
  border-radius: 8px;
}

.article-tags {
  margin: 18px 0 24px;
}

.content {
  font-size: 1.08rem;
}

.content p {
  margin: 0 0 1.1em;
}

.related {
  border-top: 1px solid var(--line);
  padding: 28px 0 48px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.related-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 16px;
  box-shadow: var(--shadow);
}

.tools-hero {
  display: grid;
  grid-template-columns: minmax(0, 760px);
  padding: 44px 0 24px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  color: var(--accent-2);
  font-size: .82rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.tools-hero h1,
.tool-main h1 {
  margin: 10px 0 12px;
  font-size: clamp(2.2rem, 6vw, 4.8rem);
  line-height: 1;
  letter-spacing: 0;
}

.tools-hero p {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.16rem;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding: 28px 0 52px;
}

.tool-card {
  display: flex;
  min-height: 230px;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 20px;
  box-shadow: var(--shadow);
}

.resource-section {
  padding: 28px 0 22px;
}

.resource-section + .resource-section {
  border-top: 1px solid var(--line);
}

.resource-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.resource-list.compact {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.resource-card {
  display: flex;
  min-height: 250px;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 18px;
  box-shadow: var(--shadow);
}

.resource-type {
  display: inline-block;
  color: var(--accent-2);
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.resource-card h3 {
  margin: 8px 0;
  font-size: 1.32rem;
  line-height: 1.18;
}

.resource-card p,
.resource-card dd {
  color: var(--muted);
}

.resource-card dl {
  margin: 14px 0 0;
}

.resource-card dt {
  margin-bottom: 4px;
  font-size: .82rem;
  font-weight: 900;
  text-transform: uppercase;
}

.resource-card dd {
  margin: 0;
}

.tool-card h2 {
  margin: 0 0 10px;
  font-size: 1.35rem;
  line-height: 1.15;
}

.tool-card p,
.tool-copy p {
  color: var(--muted);
}

.tool-link {
  color: var(--accent);
  font-weight: 900;
}

.breadcrumb {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 20px 0 0;
  color: var(--muted);
  font-size: .92rem;
}

.breadcrumb a {
  color: var(--accent);
  font-weight: 800;
}

.breadcrumb span::before {
  content: "/";
  margin-right: 10px;
  color: var(--line);
}

.tool-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 30px;
  align-items: start;
  padding: 26px 0 34px;
}

.tool-main,
.result-panel,
.tool-copy {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: clamp(18px, 3vw, 28px);
  box-shadow: var(--shadow);
}

.tool-main h1 {
  font-size: clamp(2rem, 5vw, 4rem);
}

.calculator {
  margin-top: 24px;
}

.tool-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.tool-fields label {
  display: grid;
  gap: 7px;
  font-weight: 800;
}

.tool-fields small,
.result-row small,
.muted {
  color: var(--muted);
  font-weight: 500;
}

.input-wrap {
  display: flex;
  align-items: stretch;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
}

.input-wrap input {
  width: 100%;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--text);
  padding: 11px 12px;
  font: inherit;
}

.input-wrap em {
  display: inline-flex;
  min-width: 44px;
  align-items: center;
  justify-content: center;
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-style: normal;
  font-weight: 800;
}

.calculator button {
  margin-top: 18px;
}

.result-panel {
  position: sticky;
  top: 86px;
}

.result-panel h2,
.tool-copy h2 {
  margin: 0 0 16px;
}

.result-list {
  display: grid;
  gap: 12px;
}

.result-row {
  display: grid;
  gap: 4px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
}

.result-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.result-row span {
  color: var(--muted);
  font-size: .9rem;
  font-weight: 800;
}

.result-row strong {
  color: var(--accent);
  font-size: 1.6rem;
  line-height: 1.05;
}

.tool-copy {
  margin-bottom: 30px;
}

.related-tools .related-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  padding: 24px clamp(16px, 4vw, 56px);
  text-align: center;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-top: 12px;
}

.page-heading {
  font-size: clamp(20px, 2.4vw, 28px);
  margin: 0 clamp(16px, 4vw, 56px);
  padding-top: 24px;
}

.byline {
  font-weight: 600;
}

.tool-scenarios {
  margin: 32px clamp(16px, 4vw, 56px) 0;
}

.scenario {
  border: 1px solid var(--line);
  border-radius: 12px;
  margin-top: 16px;
  padding: 20px;
}

.scenario h3 {
  margin: 0 0 6px;
}

.scenario-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin-top: 14px;
}

.scenario-table {
  border-collapse: collapse;
  width: 100%;
}

.scenario-table caption {
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.04em;
  padding-bottom: 6px;
  text-align: left;
  text-transform: uppercase;
}

.scenario-table th,
.scenario-table td {
  border-bottom: 1px solid var(--line);
  font-weight: 400;
  padding: 7px 0;
  text-align: left;
}

.scenario-table td {
  text-align: right;
}

.analysis {
  background: color-mix(in srgb, var(--accent) 6%, transparent);
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
  margin-top: 32px;
  padding: 20px 24px;
}

.analysis h2 {
  font-size: 19px;
  margin: 0 0 10px;
}

.analysis-body p {
  line-height: 1.7;
  margin: 0 0 12px;
}

.analysis-credit {
  color: var(--muted);
  font-size: 13px;
  margin: 12px 0 0;
}

.page-copy {
  margin: 0 auto;
  max-width: 720px;
  padding: 32px clamp(16px, 4vw, 56px) 8px;
}

.page-copy h2 {
  margin-top: 28px;
}

.page-copy p {
  color: var(--muted);
  line-height: 1.7;
}

@media (max-width: 760px) {
  .site-header {
    position: static;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .top-nav {
    margin-right: 0;
  }

  .featured {
    display: block;
  }

  .featured img {
    min-height: 200px;
    margin-bottom: 18px;
  }

  .article-card {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .date {
    font-weight: 800;
  }

  .thumb {
    width: 100%;
    height: 190px;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .tools-grid,
  .tool-layout,
  .tool-fields,
  .related-tools .related-grid,
  .resource-list,
  .resource-list.compact {
    grid-template-columns: 1fr;
  }

  .result-panel {
    position: static;
  }
}