.coa-main {
  min-height: 60vh;
  padding: 88px 0 104px;
  background: #f8f8f6;
}

.coa-heading {
  max-width: 780px;
  margin: 0 auto 38px;
  text-align: center;
}

.coa-heading .eyebrow {
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.coa-heading h1 {
  margin: 0 0 16px;
  color: var(--ink);
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.05;
}

.coa-heading p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.coa-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 34px;
}

.coa-filter {
  min-height: 44px;
  padding: 10px 22px;
  border: 1px solid #cfd4da;
  border-radius: 0;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  transition: border-color 180ms ease, background-color 180ms ease, color 180ms ease;
}

.coa-filter:hover,
.coa-filter:focus-visible,
.coa-filter.is-active {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.coa-library-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.coa-card {
  display: flex;
  min-width: 0;
  padding: 0;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid #d9dde2;
  border-radius: 0;
  background: #fff;
  color: var(--ink);
  text-align: left;
  cursor: zoom-in;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.coa-card:hover,
.coa-card:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 16px 36px rgba(9, 30, 66, 0.1);
  transform: translateY(-3px);
}

.coa-card[hidden] {
  display: none;
}

.coa-card-image {
  aspect-ratio: 0.73;
  overflow: hidden;
  background: #f3f4f2;
}

.coa-card-image img {
  width: 100%;
  height: 100%;
  padding: 12px;
  object-fit: contain;
}

.coa-card-copy {
  display: flex;
  min-height: 124px;
  padding: 16px;
  flex-direction: column;
}

.coa-card-type {
  margin: 0 0 7px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.coa-card-title {
  display: block;
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.25;
}

.coa-card-action {
  margin-top: auto;
  padding-top: 14px;
  color: #0a5fbf;
  font-size: 13px;
  font-weight: 800;
}

.content-main {
  padding: 76px 0 96px;
  background: #f8f8f6;
}

.content-article {
  width: min(calc(100% - 40px), 940px);
  margin: 0 auto;
  padding: 54px 60px;
  border: 1px solid #dedfdd;
  background: #fff;
}

.content-article > .eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.content-article > h1 {
  margin: 0 0 18px;
  font-size: clamp(38px, 5vw, 58px);
}

.content-summary {
  margin: 0 0 36px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.content-article section,
.content-meta,
.about-story {
  margin-top: 34px;
  padding-top: 30px;
  border-top: 1px solid #e1e3e5;
}

.content-article h2 {
  margin: 0 0 12px;
  font-size: 26px;
}

.content-article p {
  color: var(--muted);
  line-height: 1.75;
}

.about-image {
  width: 100%;
  margin-top: 28px;
  object-fit: cover;
}

.footer-legal-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

@media (max-width: 980px) {
  .coa-library-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .coa-main,
  .content-main {
    padding: 58px 0 72px;
  }

  .coa-library-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .coa-card-image img {
    padding: 7px;
  }

  .coa-card-copy {
    min-height: 108px;
    padding: 12px 10px;
  }

  .coa-card-title {
    font-size: 14px;
  }

  .coa-card-type,
  .coa-card-action {
    font-size: 10px;
  }

  .content-article {
    width: min(calc(100% - 24px), 940px);
    padding: 34px 24px;
  }

  .footer-legal-links {
    flex-wrap: wrap;
    gap: 10px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .coa-card,
  .coa-filter {
    transition: none;
  }
}