:root {
  --hub-max: 1180px;
  --hub-body: 780px;
}

.hub-header {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(118deg, #ffffff 0%, #ffffff 56%, rgba(232, 247, 244, 0.82) 56.2%, #ffffff 100%),
    radial-gradient(circle at 86% 14%, rgba(0, 124, 120, 0.1), transparent 32%);
}

.hub-hero {
  display: grid;
  gap: 22px;
  width: min(100% - 28px, var(--hub-max));
  margin: 0 auto;
  padding: 30px 0 38px;
}

.hub-copy {
  min-width: 0;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
}

.breadcrumb a {
  color: var(--teal-dark);
  text-decoration: underline;
  text-underline-offset: 0.22em;
  transition: color 0.22s ease;
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--ink);
  outline: none;
}

.hub-kicker {
  margin: 0 0 10px;
  color: var(--teal-dark);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hub-hero h1 {
  margin: 0;
  font-size: clamp(2rem, 9vw, 4.4rem);
  line-height: 1.12;
}

.hub-lead {
  max-width: 760px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 1rem;
  font-weight: 700;
}

.hub-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.hub-media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #f8fbfb;
  box-shadow: var(--shadow);
}

.hub-media img {
  width: 100%;
  aspect-ratio: 16 / 11;
  height: auto;
  object-fit: cover;
}

.hub-media-badge {
  position: absolute;
  left: 14px;
  bottom: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--teal-dark);
  font-size: 0.86rem;
  font-weight: 900;
  box-shadow: 0 10px 24px rgba(18, 27, 38, 0.1);
}

.hub-media-badge img {
  width: 28px;
  aspect-ratio: 1;
  object-fit: contain;
}

.hub-category-tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  width: min(100% - 28px, var(--hub-max));
  margin: -18px auto 0;
}

.hub-category-tabs a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: 48px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.96);
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 900;
  box-shadow: 0 10px 24px rgba(18, 27, 38, 0.06);
  transition:
    border-color 0.22s ease,
    background-color 0.22s ease,
    color 0.22s ease,
    box-shadow 0.22s ease,
    transform 0.22s ease;
}

.hub-category-tabs a[aria-current="page"] {
  border-color: rgba(0, 124, 120, 0.35);
  background: var(--teal-soft);
  color: var(--teal-dark);
}

.hub-category-tabs a:hover,
.hub-category-tabs a:focus-visible {
  border-color: rgba(0, 124, 120, 0.38);
  background: var(--white);
  color: var(--teal-dark);
  box-shadow: 0 14px 30px rgba(18, 27, 38, 0.1);
  transform: translateY(-2px);
  outline: none;
}

.hub-category-tabs img {
  width: 30px;
  height: 30px;
  padding: 4px;
  border-radius: 999px;
  background: var(--teal-soft);
  object-fit: contain;
}

.hub-main {
  width: min(100% - 28px, var(--hub-max));
  margin: 0 auto;
}

.hub-section {
  padding: 54px 0;
}

.hub-section.is-band {
  position: relative;
}

.hub-section.is-band::before {
  content: "";
  position: absolute;
  inset: 0 calc(50% - 50vw);
  z-index: -1;
  background: var(--bg);
}

.hub-section-head {
  max-width: 760px;
  margin-bottom: 22px;
}

.hub-section-head h2 {
  margin: 0;
  font-size: clamp(1.7rem, 7vw, 3rem);
  line-height: 1.18;
}

.hub-section-head p {
  margin: 12px 0 0;
  color: var(--muted);
}

.hub-grid,
.topic-grid,
.next-grid,
.check-grid,
.method-grid,
.glossary-grid {
  display: grid;
  gap: 14px;
}

.hub-card,
.topic-card,
.next-card,
.check-card,
.method-card,
.glossary-card {
  display: block;
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 10px 30px rgba(18, 27, 38, 0.05);
}

a.hub-card,
a.next-card,
a.method-card {
  transition:
    border-color 0.22s ease,
    box-shadow 0.22s ease,
    transform 0.22s ease;
}

a.hub-card:hover,
a.hub-card:focus-visible,
a.next-card:hover,
a.next-card:focus-visible,
a.method-card:hover,
a.method-card:focus-visible {
  border-color: rgba(0, 124, 120, 0.34);
  box-shadow: 0 16px 36px rgba(18, 27, 38, 0.1);
  transform: translateY(-2px);
  outline: none;
}

.hub-card h3,
.topic-card h3,
.next-card h3,
.check-card h3,
.method-card h3,
.glossary-card h3 {
  margin: 8px 0 0;
  font-size: 1.08rem;
  line-height: 1.42;
}

.hub-card p,
.topic-card p,
.next-card p,
.check-card p,
.method-card p,
.glossary-card p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.card-mark {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 999px;
  background: var(--teal-soft);
  color: var(--teal-dark);
  font-weight: 900;
}

.topic-card {
  display: grid;
  gap: 10px;
  align-content: start;
}

.topic-card .badge {
  min-height: 30px;
  align-items: center;
}

.topic-card strong {
  color: var(--ink);
}

.published-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.published-list a {
  display: grid;
  gap: 7px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  transition:
    border-color 0.22s ease,
    box-shadow 0.22s ease,
    transform 0.22s ease;
}

.published-list a:hover,
.published-list a:focus-visible {
  border-color: rgba(0, 124, 120, 0.34);
  box-shadow: 0 14px 30px rgba(18, 27, 38, 0.09);
  transform: translateY(-2px);
  outline: none;
}

.published-list strong {
  color: var(--ink);
}

.published-list span {
  color: var(--muted);
  font-size: 0.92rem;
}

.flow-steps {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: flow;
}

.flow-steps li {
  position: relative;
  padding: 16px 16px 16px 62px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.flow-steps li::before {
  counter-increment: flow;
  content: counter(flow, decimal-leading-zero);
  position: absolute;
  top: 16px;
  left: 16px;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 900;
}

.flow-steps strong {
  display: block;
  color: var(--ink);
}

.flow-steps span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.94rem;
}

.compare-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.compare-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
}

.compare-table th,
.compare-table td {
  padding: 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.compare-table th {
  background: #f4fbfa;
  color: var(--ink);
  font-size: 0.9rem;
}

.compare-table tr:last-child td {
  border-bottom: 0;
}

.faq-stack {
  display: grid;
  gap: 10px;
}

.faq-stack details {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.faq-stack summary {
  cursor: pointer;
  color: var(--ink);
  font-weight: 900;
}

.faq-stack p {
  margin: 10px 0 0;
  color: var(--muted);
}

.hub-note {
  padding: 16px;
  border-left: 5px solid var(--teal);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: #f4fbfa;
  color: #344252;
}

.hub-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  color: var(--teal-dark);
  font-weight: 900;
  transition:
    color 0.22s ease,
    transform 0.22s ease;
}

.hub-link::after {
  content: "→";
  transition: transform 0.22s ease;
}

.hub-link:hover,
.hub-link:focus-visible {
  color: var(--ink);
  transform: translateY(-1px);
  outline: none;
}

.hub-link:hover::after,
.hub-link:focus-visible::after {
  transform: translateX(3px);
}

.glossary-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.glossary-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  color: var(--teal-dark);
  font-weight: 900;
  transition:
    border-color 0.22s ease,
    background-color 0.22s ease,
    color 0.22s ease,
    transform 0.22s ease;
}

.glossary-nav a:hover,
.glossary-nav a:focus-visible {
  border-color: rgba(0, 124, 120, 0.34);
  background: var(--teal-soft);
  color: var(--ink);
  transform: translateY(-1px);
  outline: none;
}

@media (min-width: 720px) {
  .hub-hero,
  .hub-main,
  .hub-category-tabs {
    width: min(100% - 48px, var(--hub-max));
  }

  .hub-hero {
    grid-template-columns: minmax(0, 0.92fr) minmax(340px, 1.08fr);
    align-items: center;
    padding: 54px 0 58px;
  }

  .hub-media img {
    aspect-ratio: 16 / 10;
  }

  .hub-category-tabs {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .hub-section {
    padding: 72px 0;
  }

  .hub-grid,
  .topic-grid,
  .next-grid,
  .check-grid,
  .method-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .flow-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .hub-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .topic-grid,
  .next-grid,
  .check-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .hub-category-tabs a,
  a.hub-card,
  a.next-card,
  a.method-card,
  .published-list a,
  .hub-link,
  .glossary-nav a {
    transition: none;
  }
}