.gzt-hero {
  padding: clamp(2.8rem, 7vw, 5rem) 0;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(125deg, #e8f5f6 0%, #f7fafb 58%, #edf1f8 100%);
}
.gzt-hero-inner { display: flex; align-items: end; justify-content: space-between; gap: 2rem; }
.gzt-hero h1, .gzt-article h1 { margin: 0; font-size: clamp(2.5rem, 5vw, 4.25rem); line-height: 1.08; letter-spacing: -.035em; }
.gzt-hero .lead { max-width: 760px; margin: 1rem 0 0; color: var(--muted); font-size: clamp(1.05rem, 1.7vw, 1.25rem); line-height: 1.65; }
.gzt-hero-link { flex: 0 0 auto; display: inline-flex; align-items: center; gap: .6rem; min-height: 46px; padding: .65rem 1rem; border: 1px solid #bfdfe3; border-radius: 8px; background: rgba(255,255,255,.76); color: var(--primary-dark); font-weight: 750; text-decoration: none; }
.gzt-hero-link:hover { background: #fff; text-decoration: underline; }
.gzt-section { padding: clamp(2.7rem, 5vw, 4rem) 0; }
.gzt-section-heading { display: flex; justify-content: space-between; align-items: end; gap: 1rem; margin-bottom: 1.2rem; }
.gzt-section-heading .eyebrow { margin: 0 0 .35rem; }
.gzt-section h2 { margin: 0; font-size: clamp(1.7rem, 3vw, 2.35rem); }
.gzt-material-count { flex: 0 0 auto; margin: 0 0 .25rem; color: var(--muted); font-size: .95rem; }
.gzt-categories { display: flex; flex-wrap: wrap; gap: .55rem; margin: 0 0 1.5rem; }
.gzt-categories span { display: inline-block; padding: .4rem .8rem; border: 1px solid #b5d9dd; border-radius: 999px; background: #edf8f9; color: var(--primary-dark); font-weight: 700; }
.gzt-filters { display: flex; flex-wrap: wrap; gap: .55rem; margin: 0 0 1.5rem; }
.gzt-filters[hidden] { display: none; }
.gzt-filters button { min-height: 42px; padding: .45rem .85rem; border: 1px solid #b5d9dd; border-radius: 999px; background: var(--surface); color: var(--primary-dark); font: inherit; font-weight: 700; cursor: pointer; }
.gzt-filters button[aria-pressed="true"] { background: #edf8f9; }
.gzt-filters button:focus-visible { outline: 3px solid #173e6d; outline-offset: 3px; }
.gzt-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: 1.2rem; align-items: stretch; }
.gzt-card { display: flex; min-width: 0; flex-direction: column; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); box-shadow: 0 10px 32px rgba(17,49,57,.06); }
.gzt-card[hidden] { display: none; }
.gzt-card-image { display: block; aspect-ratio: 16 / 9; overflow: hidden; background: var(--surface-muted); }
.gzt-card-image picture, .gzt-card-image img { display: block; width: 100%; height: 100%; }
.gzt-card-image img { object-fit: contain; }
.gzt-card-copy { display: flex; flex: 1; flex-direction: column; align-items: flex-start; padding: 1.25rem; }
.gzt-card h2 { margin: .25rem 0 .45rem; font-size: 1.35rem; line-height: 1.28; }
.gzt-card h2 a { color: var(--text); text-decoration: none; }
.gzt-card h2 a:hover, .gzt-card-more:hover { text-decoration: underline; }
.gzt-card p { margin: .45rem 0; color: var(--muted); }
.gzt-card .gzt-category { color: var(--primary-dark); }
.gzt-card-meta { font-size: .9rem; }
.gzt-card-more { display: inline-flex; gap: .35rem; margin-top: auto; padding-top: .65rem; color: var(--primary-dark); font-weight: 750; }
.gzt-category { color: var(--primary-dark) !important; font-size: .84rem; font-weight: 800; letter-spacing: .035em; text-transform: uppercase; }
.gzt-preview-note { display: inline-block; padding: .55rem .8rem; border: 1px solid #9db8cd; border-radius: 8px; background: #eaf1f8; color: #254665; font-size: .94rem; }
.gzt-empty { max-width: 760px; padding: clamp(1.3rem, 3vw, 2rem); border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.gzt-empty .eyebrow { margin: 0 0 .4rem; }
.gzt-empty h2 { margin: 0; font-size: clamp(1.5rem, 3vw, 2rem); }
.gzt-empty p:last-child { max-width: 650px; margin: .7rem 0 0; color: var(--muted); line-height: 1.65; }
.gzt-app-wrap { padding: 0 0 clamp(3rem, 6vw, 4.5rem); }
.gzt-app { display: flex; justify-content: space-between; align-items: center; gap: 2rem; margin: 0; padding: clamp(1.3rem, 3vw, 1.8rem); border: 1px solid #bfdfe3; border-radius: 14px; background: linear-gradient(110deg, #eff9fa, #fff); }
.gzt-app h2 { margin: 0 0 .35rem; font-size: 1.65rem; }
.gzt-app p { max-width: 700px; margin: .45rem 0; color: var(--muted); line-height: 1.55; }
.gzt-app-features { display: flex; flex-wrap: wrap; gap: .35rem 1.4rem; margin: .8rem 0 0; padding-left: 1.1rem; color: var(--muted); font-size: .94rem; }
.gzt-app-features li { padding-right: .3rem; }
.gzt-app-links { display: flex; flex: 0 0 auto; flex-wrap: wrap; gap: .55rem; }
.gzt-app-links .button { min-height: 46px; }
.gzt-article-wrap { max-width: 1240px; padding: 1.2rem 0 5rem; }
.gzt-breadcrumbs { display: flex; flex-wrap: wrap; gap: .55rem; padding: 0 0 1.4rem; color: var(--muted); font-size: .9rem; }
.gzt-breadcrumbs a { color: var(--primary-dark); }
.gzt-article-header { max-width: 850px; padding: 0 0 1.3rem; }
.gzt-article-header .gzt-category { margin: 0 0 .55rem; }
.gzt-article h1 { font-size: clamp(2.2rem, 4.5vw, 3.75rem); }
.gzt-intro { max-width: 760px; margin: .85rem 0; color: var(--muted); font-size: 1.15rem; line-height: 1.65; }
.gzt-byline { display: flex; flex-wrap: wrap; gap: .3rem 1.2rem; color: var(--muted); font-size: .9rem; }
.gzt-cover { width: min(100%, 1000px); overflow: hidden; aspect-ratio: 16 / 9; margin: 0 0 2rem; border-radius: 14px; background: var(--surface-muted); }
.gzt-cover picture, .gzt-cover img { display: block; width: 100%; height: 100%; }
.gzt-cover img { object-fit: contain; }
.gzt-reading-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(230px, 285px); gap: clamp(1.5rem, 4vw, 3.2rem); align-items: start; }
.gzt-reading-main { min-width: 0; grid-column: 1; grid-row: 1; }
.gzt-reading-aside { position: sticky; top: 5.5rem; min-width: 0; grid-column: 2; grid-row: 1; }
.gzt-toc { padding: .85rem 1rem; border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
.gzt-toc summary { color: var(--text); font-weight: 750; cursor: pointer; }
.gzt-toc ul { display: grid; gap: .3rem; margin: .65rem 0 0; padding: 0; list-style: none; }
.gzt-toc li { min-width: 0; color: var(--muted); font-size: .92rem; line-height: 1.4; }
.gzt-toc li a { color: var(--primary-dark); }
.gzt-prose { max-width: 760px; padding: .1rem 0 1.6rem; font-size: 1.08rem; line-height: 1.8; overflow-wrap: anywhere; }
.gzt-prose h2, .gzt-prose h3 { line-height: 1.24; scroll-margin-top: 105px; }
.gzt-prose h2 { margin: 2.1rem 0 .8rem; font-size: clamp(1.55rem, 3vw, 2rem); }
.gzt-prose h3 { margin: 1.6rem 0 .6rem; font-size: 1.3rem; }
.gzt-prose p, .gzt-prose ul, .gzt-prose ol { margin: .9rem 0; }
.gzt-prose img, .gzt-prose table { max-width: 100%; }
.gzt-prose table { width: 100%; table-layout: fixed; border-collapse: collapse; font-size: .93em; line-height: 1.5; }
.gzt-prose thead { background: var(--surface-muted); }
.gzt-prose th, .gzt-prose td { padding: .65rem .75rem; text-align: left; vertical-align: top; overflow-wrap: anywhere; border: 0; border-bottom: 1px solid var(--line); }
.gzt-prose tbody tr:last-child td { border-bottom: 0; }
.gzt-callout { margin: 1.3rem 0; padding: 1rem 1.2rem; border: 1px solid #b9dfe2; border-left: 4px solid var(--primary); border-radius: 9px; background: #eff9fa; }
.gzt-callout p { margin: 0; }
.gzt-callout-important { border-color: #e6d39a; border-left-color: #a2740b; background: #fffaf0; }
.gzt-callout-attention { border-color: #b9dfe2; }
.gzt-callout-doctor { border-color: #c9d7eb; border-left-color: #536d96; background: #f3f6fb; }
.gzt-callout-summary { border-color: #c8dfce; border-left-color: #457b52; background: #f3f9f3; }
.gzt-sources, .gzt-video, .gzt-related { padding: 1.4rem 0; border-top: 1px solid var(--line); }
.gzt-sources h2, .gzt-video h2, .gzt-related h2 { margin: 0 0 .6rem; font-size: 1.5rem; }
.gzt-sources li, .gzt-related li { margin: .45rem 0; overflow-wrap: anywhere; }
.gzt-video button { min-height: 48px; padding: .75rem 1rem; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--primary-dark); font: inherit; font-weight: 700; cursor: pointer; }
.gzt-video iframe { display: block; width: min(100%, 720px); aspect-ratio: 16 / 9; border: 0; }
.gzt-video p { color: var(--muted); font-size: .9rem; }
.gzt-disclaimer { margin: 1.2rem 0; padding: 1rem 1.2rem; border-left: 4px solid var(--primary); border-radius: 8px; background: var(--surface-muted); color: var(--muted); }
.gzt-footer { display: flex; justify-content: space-between; gap: 1rem 2rem; }
.gzt-footer-links { display: flex; flex-wrap: wrap; align-content: start; justify-content: flex-end; gap: .4rem 1.1rem; }
.gzt-settings { padding: 0; border: 0; background: none; color: var(--primary-dark); font: inherit; text-decoration: underline; cursor: pointer; }
.analytics-banner { position: fixed; right: 1rem; bottom: 1rem; z-index: 30; display: flex; align-items: center; gap: 1rem; width: min(720px, calc(100% - 2rem)); padding: 1rem 1.1rem; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); box-shadow: var(--shadow); }
.analytics-banner[hidden] { display: none; }
.analytics-banner-copy { flex: 1; }
.analytics-banner-copy p { margin: .25rem 0; color: var(--muted); font-size: .92rem; }
.analytics-status, .gzt-analytics-status { font-weight: 700; }
.analytics-banner-actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.analytics-banner-actions .button { min-height: 42px; white-space: nowrap; font: inherit; cursor: pointer; }
.analytics-banner-actions .button[aria-pressed="true"] { outline: 3px solid var(--primary-dark); outline-offset: 2px; }
.gzt-hero-link:focus-visible, .gzt-card a:focus-visible, .gzt-breadcrumbs a:focus-visible, .gzt-toc a:focus-visible, .gzt-app a:focus-visible, .gzt-settings:focus-visible { outline: 3px solid #173e6d; outline-offset: 3px; }
@media (max-width: 960px) {
  .gzt-app, .gzt-footer { flex-direction: column; align-items: stretch; }
  .gzt-footer-links { justify-content: flex-start; }
  .gzt-reading-layout { grid-template-columns: minmax(0, 1fr); gap: 1rem; }
  .gzt-reading-aside, .gzt-reading-main { grid-column: 1; grid-row: auto; }
  .gzt-reading-aside { position: static; }
  .gzt-app-links { align-self: flex-start; }
}
@media (max-width: 700px) {
  .gzt-hero { padding: 2.8rem 0; }
  .gzt-hero-inner, .gzt-section-heading { align-items: flex-start; flex-direction: column; gap: 1rem; }
  .gzt-section { padding: 2.8rem 0; }
  .gzt-grid { grid-template-columns: minmax(0, 1fr); }
  .gzt-card-copy { padding: 1rem; }
  .gzt-app-links { flex-direction: column; width: 100%; }
  .gzt-app-links a { width: 100%; text-align: center; }
  .gzt-article-wrap { padding-top: 1rem; }
  .gzt-article h1 { font-size: clamp(2rem, 9vw, 2.7rem); overflow-wrap: anywhere; }
  .gzt-cover { margin-bottom: 1.2rem; }
  .gzt-prose { font-size: 1rem; line-height: 1.75; }
  .gzt-app-features { display: block; }
  .analytics-banner { align-items: stretch; flex-direction: column; max-height: calc(100dvh - 2rem); overflow-y: auto; }
  .analytics-banner-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .analytics-banner-actions .button { white-space: normal; text-align: center; }
}
@media (max-width: 380px) {
  .analytics-banner-actions { grid-template-columns: 1fr; }
  .gzt-breadcrumbs { gap: .35rem; font-size: .82rem; }
}
@media (prefers-reduced-motion: reduce) {
  .gzt-card-image img { transition: none; }
  .gzt-card:hover .gzt-card-image img { transform: none; }
}