/* Chronika public storefront: one independent surface built on shared tokens. */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 32px; }
body.public-site {
  --ink: var(--chronika-ink, #192332);
  --amber: var(--chronika-rust, #2455D6);
  --ivory: var(--chronika-cream, #F3F6FA);
  --surface: #FFFFFF;
  --green: var(--chronika-teal, #285F54);
  --muted: var(--chronika-muted, #556577);
  --line: var(--chronika-line, #D7E0EA);
  --font: var(--chronika-font, "Golos Text", sans-serif);
  margin: 0; background: var(--ivory); color: var(--ink);
  font: 17px/1.65 var(--font); -webkit-font-smoothing: antialiased;
  scrollbar-color: var(--muted) var(--ivory); caret-color: var(--amber);
}
.public-site ::selection { background: var(--amber); color: white; }
.public-site a { color: inherit; text-decoration: none; text-underline-offset: .2em; }
.public-site button, .public-site input { font: inherit; }
body.public-site [hidden] { display: none !important; }
.public-site img { display: block; max-width: 100%; }
.public-site h1, .public-site h2, .public-site h3, .public-site p, .public-site figure { margin: 0; }
.public-site h1, .public-site h2, .public-site h3 { line-height: 1.16; letter-spacing: -.035em; font-weight: 740; text-wrap: balance; }
.public-site h1, .public-site h2, .public-site h3, .public-site p, .public-site a, .public-site span, .public-site strong { overflow-wrap: anywhere; }
.public-site h2 { font-size: clamp(28px, 3vw, 40px); }
.public-site h3 { font-size: 23px; }
.public-site p { max-width: 72ch; }
.public-site a:focus-visible, .public-site summary:focus-visible, .public-site button:focus-visible { outline: 3px solid var(--green); outline-offset: 5px; }
.public-site main:focus { outline: none; }
.public-site .skip-link { position: fixed; z-index: 10; top: -80px; left: 20px; padding: 12px 20px; border-radius: 12px; background: var(--ink); color: white; }
.public-site .skip-link:focus { top: 12px; }
.public-header { background: var(--ivory); }
.public-header-inner { max-width: 1280px; margin: auto; padding: 25px 32px; display: flex; align-items: center; gap: 32px; }
.public-brand { display: inline-flex; align-items: center; gap: 11px; flex-shrink: 0; font-size: 23px; font-weight: 800; letter-spacing: -.02em; }
.public-brand img { width: 34px; height: 34px; }
.public-nav { display: flex; gap: 25px; margin-left: auto; flex-wrap: wrap; align-items: center; }
.public-nav a { display: inline-flex; align-items: center; min-height: 44px; font-size: 16px; color: var(--muted); }
.public-nav a[aria-current="page"], .public-nav a:hover { color: var(--amber); }
.public-main { width: min(1280px, 100%); margin: auto; padding: 24px 32px 80px; }
.public-site .btn { display: inline-flex; justify-content: center; align-items: center; min-height: 50px; padding: 13px 21px; border: 1px solid transparent; border-radius: 12px; font-size: 14px; font-weight: 650; line-height: 1.45; text-align: center; transition: background-color .16s, border-color .16s; }
.public-site .btn-primary { background: var(--amber); color: white; }
.public-site .btn-primary:hover { background: #1743AF; }
.public-site .btn-outline { border-color: var(--line); background: transparent; color: var(--ink); }
.public-site .btn-outline:hover { border-color: var(--ink); background: white; }
.public-site .btn-sm { min-height: 44px; padding: 10px 15px; }
.public-login { flex-shrink: 0; }
/* The learning home shares the catalog's brand and document shell. */
.public-home .public-header-inner { padding-top: 23px; padding-bottom: 23px; padding-inline: clamp(16px, 3vw, 40px); }
.public-home .public-header { border-bottom: 1px solid var(--line); }
.public-home .public-main { padding-top: 0; padding-inline: 0; }
.public-home .public-nav { gap: 27px; }
.public-home .public-nav a { color: var(--ink); }
.public-home .public-nav a:hover { color: var(--amber); text-decoration: underline; }
.public-home .public-login { background: var(--surface); border-radius: 8px; }
.public-home .public-footer { margin-top: 0; }
.public-site .text-link { display: inline-flex; align-items: center; min-height: 44px; padding: 6px 0; color: var(--amber); font-size: 14px; font-weight: 650; }
.public-site .text-link:hover { text-decoration: underline; }
.public-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 24px; }
.public-fine, .public-muted { color: var(--muted); font-size: 16px; line-height: 1.65; }
.public-hero { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .9fr); column-gap: 54px; row-gap: 0; grid-template-areas: "copy sample" "details sample"; padding: 35px 0 40px; align-items: center; }
.public-hero-copy { grid-area: copy; }
.public-hero-details { grid-area: details; }
.public-hero h1 { font-size: clamp(48px, 5.6vw, 76px); font-weight: 790; line-height: 1.05; max-width: 700px; margin-bottom: 25px; }
.public-hero .public-lead { font-size: 20px; line-height: 1.5; max-width: 37ch; }
.public-hero-description { margin-top: 13px; max-width: 46ch; color: var(--muted); }
.public-hero .public-actions { margin-top: 26px; }
.public-free-note { margin-top: 11px; color: var(--green); }
.public-hero-offers { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; margin: 25px 0 17px; }
.public-hero-offer { display: flex; flex-direction: column; gap: 4px; padding-top: 12px; border-top: 1px solid var(--line); min-height: 92px; }
.public-hero-offer span, .public-hero-offer small { font-size: 14px; color: var(--muted); line-height: 1.5; }
.public-hero-offer strong { font-size: 20px; font-weight: 700; font-variant-numeric: tabular-nums; line-height: 1.4; white-space: normal; }
.public-hero-offer:hover strong { color: var(--amber); }
.public-program-line { max-width: 57ch; }
.public-entry-links { display: flex; flex-wrap: wrap; gap: 8px 22px; margin-top: 4px; }
.public-sample { grid-area: sample; min-width: 0; padding: 0; }
.public-material-spread { position: relative; height: 430px; width: 100%; }
.public-sample-main { display: block; width: 61%; max-width: 278px; position: absolute; left: 5%; top: 9px; transform: rotate(-6deg); z-index: 2; box-shadow: 5px 18px 30px rgba(34,42,50,.13); }
.public-sample-main img { width: 100%; height: auto; }
.public-sample-companion { display: block; width: 47%; max-width: 215px; position: absolute; right: 2%; top: 64px; transform: rotate(8deg); z-index: 1; background: white; box-shadow: 5px 12px 22px rgba(34,42,50,.10); }
.public-sample-companion img { width: 100%; height: auto; }
.public-sample-companion span { display: block; padding: 9px 11px; color: var(--muted); font-size: 14px; line-height: 1.4; }
.public-sample figcaption { margin: 11px 0 0 7%; font-size: 14px; color: var(--muted); max-width: 34ch; }
.public-sample figcaption strong { display: block; font-size: 15px; color: var(--ink); line-height: 1.5; margin: 4px 0; font-weight: 650; }
.public-sample figcaption>span { display: block; }
.public-hero-facts { list-style: none; margin: 0; padding: 26px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 30px; }
.public-hero-facts li { min-width: 0; }
.public-hero-facts strong { display: block; font-size: 15px; font-weight: 700; margin-bottom: 7px; }
.public-hero-facts span { display: block; font-size: 14px; color: var(--muted); line-height: 1.6; }
.public-section { margin: 66px 0; scroll-margin-top: 26px; }
.public-section>h2 { margin-bottom: 25px; }
.public-site .section-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 28px; margin: 0 0 25px; }
.public-site .section-heading p { color: var(--muted); max-width: 65ch; margin-top: 12px; }
.public-site .section-heading>span { color: var(--muted); font-size: 14px; white-space: nowrap; }
.public-site .topic-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; }
.public-site .public-topic-card { background: white; border: 1px solid var(--line); border-radius: 16px; display: grid; grid-template-columns: 113px minmax(0,1fr); gap: 23px; padding: 24px; min-width: 0; }
.public-site .public-topic-card:hover { border-color: var(--amber); }
.public-site .topic-preview { width: 113px; height: 160px; align-self: start; overflow: hidden; background: var(--ivory); }
.public-site .topic-preview img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.public-site .topic-body { display: flex; flex-direction: column; min-width: 0; }
.public-site .topic-label { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; font-size: 14px; color: var(--muted); margin-bottom: 9px; }
.public-site .topic-body h3 { font-size: 21px; line-height: 1.3; margin-bottom: 10px; }
.public-site .topic-period { font-size: 14px; color: var(--muted); line-height: 1.55; }
.public-site .topic-meta { margin-top: auto; padding-top: 10px; color: var(--muted); font-size: 14px; }
.public-site .badge-free { display: inline-block; background: #ECF3EE; color: var(--green); border-radius: 6px; padding: 4px 7px; font-size: 14px; line-height: 1.4; }
.public-site .topic-bottom { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 8px; }
.public-site .topic-price { font-size: 15px; font-weight: 700; }
.public-site .card-open { min-height: 44px; display: inline-flex; align-items: center; font-size: 14px; color: var(--amber); }
.public-no-cover { min-height: 150px; height: 100%; display: flex; flex-direction: column; justify-content: center; gap: 6px; padding: 15px; color: var(--muted); font-size: 25px; }
.public-no-cover span { font-size: 14px; }
.public-site .panel { background: white; border: 1px solid var(--line); border-radius: 16px; padding: 28px; min-width: 0; }
.public-product-grid { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 16px; }
.public-product, .public-combo { display: flex; flex-direction: column; align-items: flex-start; }
.public-product h3, .public-combo h3, .public-product h2 { font-size: 24px; line-height: 1.25; margin-bottom: 10px; }
.public-format { display: inline-block; font-size: 14px; color: var(--muted); line-height: 1.5; margin-bottom: 16px; }
.public-product>p, .public-combo>p { color: var(--muted); font-size: 14px; line-height: 1.65; }
.public-product>.price-comparison, .public-combo>.price-comparison { margin-top: auto; padding-top: 24px; }
.public-product>.btn, .public-combo>.btn { width: 100%; margin-top: 22px; }
.public-product[data-format="kit"] { background: #E8EFFB; }
.public-combo-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; }
.public-combo>.public-fine { margin-top: 14px; }
.price-comparison { display: flex; flex-direction: column; gap: 5px; font-variant-numeric: tabular-nums; }
.public-price { display: block; font-size: clamp(26px,3vw,36px); line-height: 1.25; letter-spacing: -.035em; font-weight: 730; }
.price-separate { font-size: 16px; color: var(--muted); line-height: 1.6; }
.price-separate s { white-space: nowrap; }
.price-saving { color: var(--green); font-size: 16px; line-height: 1.55; font-weight: 600; }
.public-library-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 20px; }
.public-site .public-product[data-format="full"] { background: var(--green); color: white; }
.public-library-grid>.public-product[data-format="full"] { grid-column: span 2; }
.public-product[data-format="full"] .public-format, .public-product[data-format="full"] p, .public-product[data-format="full"] .price-separate { color: #DEE9E4; }
.public-product[data-format="full"] .price-saving { color: #DEE9E4; }
.public-product[data-format="full"]>.btn { background: white; color: var(--green); }
.public-bank { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 45px; align-items: center; margin: 66px 0; }
.public-bank h2 { margin-bottom: 16px; }
.public-bank p { margin-top: 13px; }
.public-bank .public-actions { flex-direction: column; margin: 0; width: 235px; }
.public-bank .public-actions>.btn { width: 100%; }
.public-full { display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: center; gap: 50px; margin: 44px 0 66px; }
.public-site .public-full { background: var(--green); color: white; padding: 40px; border: 0; }
.public-full h2 { margin-bottom: 17px; }
.public-full p, .public-full .price-separate, .public-full .price-saving { color: #DEE9E4; }
.public-full>div:last-child { min-width: 225px; }
.public-full .btn { background: white; color: var(--green); margin-top: 20px; width: 100%; }
.public-site .public-full .btn:hover, .public-product[data-format="full"]>.btn:hover { background: #EDF3EE; color: var(--green); }
.public-method { list-style: none; counter-reset: study; padding: 0; margin: 30px 0 0; display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 35px; }
.public-method li { counter-increment: study; min-width: 0; }
.public-method li::before { content: counter(study); display: inline-flex; align-items: center; justify-content: center; width: 35px; height: 35px; margin-bottom: 15px; border: 1px solid var(--line); border-radius: 10px; font-size: 14px; color: var(--amber); }
.public-method strong { display: block; font-size: 23px; line-height: 1.3; margin-bottom: 11px; }
.public-method p { color: var(--muted); font-size: 14px; }
.public-author-feature { display: grid; grid-template-columns: minmax(180px,.65fr) minmax(0,1.35fr); align-items: center; gap: 70px; margin: 80px 0; }
.public-author-feature>img { width: 100%; height: 365px; object-fit: cover; object-position: 50% 35%; border-radius: 16px; }
.public-author-feature p { margin: 20px 0 25px; color: var(--muted); }
.public-faq { display: grid; grid-template-columns: minmax(0,.75fr) minmax(0,1.25fr); gap: 55px; }
.public-faq details { border-bottom: 1px solid var(--line); }
.public-faq details:first-child { border-top: 1px solid var(--line); }
.public-faq summary { min-height: 58px; padding: 18px 27px 18px 0; font-size: 16px; font-weight: 650; cursor: pointer; }
.public-faq p { color: var(--muted); margin: 0 0 22px; font-size: 14px; }
.public-site .page-heading { margin: 18px 0 32px; }
.public-site .page-heading h1 { font-size: clamp(38px,4.5vw,58px); margin-bottom: 19px; }
.public-site .page-heading p { color: var(--muted); font-size: 18px; max-width: 60ch; }
.public-breadcrumbs { display: flex; gap: 11px; align-items: center; flex-wrap: wrap; color: var(--muted); font-size: 14px; margin: 0 0 30px; }
.public-breadcrumbs a { display: inline-flex; min-height: 44px; align-items: center; }
.public-breadcrumbs a:hover { color: var(--amber); }
.public-periods { display: flex; flex-wrap: wrap; gap: 10px; margin: 30px 0 40px; }
.public-periods a { display: inline-flex; align-items: center; min-height: 46px; padding: 10px 16px; border: 1px solid var(--line); border-radius: 10px; font-size: 14px; line-height: 1.5; }
.public-periods a:hover { background: white; border-color: var(--amber); }
/* Search enhances the complete server-rendered catalog without an API. */
.public-catalog-search { margin: 34px 0 26px; max-width: 750px; }
.public-catalog-search label { display: block; font-size: 16px; font-weight: 650; margin-bottom: 12px; }
.public-search-row { display: flex; align-items: stretch; gap: 12px; }
.public-search-row input { flex: 1; min-width: 0; width: 100%; min-height: 50px; padding: 12px 16px; border: 1px solid var(--line); border-radius: 12px; background: white; color: var(--ink); caret-color: var(--amber); }
.public-search-row input::placeholder { color: var(--muted); }
.public-search-row input:focus-visible { outline: 3px solid var(--green); outline-offset: 3px; }
.public-search-row button { cursor: pointer; }
.public-search-row button:disabled { opacity: .55; cursor: default; }
#public-topic-results { margin-top: 12px; color: var(--muted); font-size: 14px; }
.public-search-empty { padding: 30px 0; margin: 20px 0; }
.public-search-empty h2 { font-size: 28px; margin-bottom: 14px; }
.public-search-empty p { color: var(--muted); }
.public-catalog-entry { margin-bottom: 30px; }
.public-catalog-prices { font-size: 15px; }
.public-catalog-entry .public-fine { margin-top: 12px; color: var(--green); }
.public-period-price-list { display: grid; gap: 14px; }
.public-site .public-period-price { padding: 0; }
.public-period-price>summary { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 15px; padding: 22px 28px; cursor: pointer; min-height: 68px; font-size: 20px; font-weight: 650; }
.public-period-price>summary>span:nth-of-type(2) { margin-left: auto; color: var(--muted); font-size: 14px; font-weight: 400; }
.public-disclosure-icon { width: 18px; height: 18px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 2; }
.public-period-price[open] .public-disclosure-icon { transform: rotate(180deg); }
.public-period-price>div { padding: 0 28px 15px; }
.public-price-row { display: grid; grid-template-columns: minmax(0,1fr) minmax(170px,1fr) auto; gap: 25px; align-items: center; padding: 21px 0; border-top: 1px solid var(--line); }
.public-price-row>span { font-size: 15px; font-weight: 650; }
.public-price-row .public-price { font-size: 27px; }
.public-access { margin: 45px 0; }
.public-access h2 { font-size: 25px; margin-bottom: 16px; }
.public-access p { color: var(--muted); font-size: 16px; margin-bottom: 12px; }
.public-practice-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; }
.public-practice-grid h2 { font-size: 28px; margin-bottom: 16px; }
.public-practice-grid p { color: var(--muted); margin-bottom: 15px; }
.public-section>.public-fine { margin-top: 22px; }
.public-metrics { padding: 0; margin: 38px 0; list-style: none; display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 30px; }
.public-metrics li { border-top: 1px solid var(--line); padding-top: 20px; }
.public-metrics strong { display: block; font-size: 35px; font-weight: 720; }
.public-metrics span { display: block; color: var(--muted); font-size: 14px; }
.public-topic-reference { font-size: 14px; color: var(--muted); margin-bottom: 10px; }
.public-topic-detail { display: grid; grid-template-columns: minmax(0,.75fr) minmax(0,1.25fr); gap: 65px; align-items: start; margin: 35px 0 60px; }
.public-topic-detail>figure { max-width: 360px; padding: 0; }
.public-topic-detail>figure>img { width: 100%; height: auto; max-height: 520px; object-fit: contain; object-position: top; }
.public-topic-detail figcaption { font-size: 14px; color: var(--muted); margin-top: 12px; }
.public-topic-detail>div { min-width: 0; }
.public-topic-detail>div>p { color: var(--muted); margin-bottom: 20px; }
.public-topic-detail>div>p.public-fine { margin-top: 18px; font-size: 16px; }
.public-contents { margin: 28px 0; }
.public-contents h2 { font-size: 25px; margin-bottom: 16px; }
.public-contents ul { margin: 0; padding-left: 20px; color: var(--muted); font-size: 15px; line-height: 1.9; }
.public-topic-detail .btn { margin-top: 8px; }
.public-neighbors { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 35px; border-top: 1px solid var(--line); padding: 25px 0 0; margin-top: 45px; }
.public-neighbors a { min-height: 70px; }
.public-neighbors span { display: block; color: var(--amber); font-size: 14px; margin-bottom: 10px; }
.public-neighbors strong { display: block; font-size: 18px; line-height: 1.5; }
.public-next-step .section-heading { margin-bottom: 30px; }
.public-next-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 45px; }
.public-next-offer { display: flex; flex-direction: column; align-items: flex-start; }
.public-next-offer h3 { margin-bottom: 17px; }
.public-next-offer p { color: var(--muted); font-size: 16px; margin-bottom: 20px; }
.public-next-offer .price-comparison { margin-top: auto; }
.public-next-offer>.btn { margin-top: 20px; }
.public-product-detail>.public-purchase-summary>h2 { font-size: 29px; margin-bottom: 15px; }
.public-offer-composition { padding-left: 20px; margin: 0 0 20px; line-height: 1.85; }
.public-product-detail .public-actions>.btn { white-space: normal; min-height: 48px; }
.public-product-topics>summary { cursor: pointer; min-height: 50px; padding: 13px 0; font-size: 18px; font-weight: 650; }
.public-product-topics ul { padding-left: 22px; margin: 10px 0 0; columns: 2; column-gap: 45px; }
.public-product-topics li { break-inside: avoid; margin-bottom: 10px; }
.public-product-topics a { display: inline-block; min-height: 44px; padding: 5px 0; color: var(--muted); }
.public-product-topics a:hover { color: var(--amber); }
.public-author { display: grid; grid-template-columns: minmax(0,.7fr) minmax(0,1.3fr); gap: 75px; margin: 45px 0 70px; align-items: center; }
.public-author img { width: 100%; height: 480px; object-fit: cover; object-position: 50% 35%; border-radius: 16px; }
.public-author figcaption { color: var(--muted); font-size: 14px; margin-top: 12px; }
.public-author h2 { margin-bottom: 24px; }
.public-author p { margin-bottom: 20px; color: var(--muted); }
.public-footer { width: min(1280px,100%); margin: auto; border-top: 1px solid var(--line); padding: 35px 32px 45px; display: grid; grid-template-columns: 1fr 1.5fr 1fr; gap: 40px; color: var(--muted); font-size: 14px; }
.public-footer strong { display: block; color: var(--ink); font-size: 21px; font-weight: 800; }
.public-footer p { margin-top: 7px; }
.public-footer nav, .public-footer-apps { display: flex; align-content: flex-start; flex-wrap: wrap; gap: 0 20px; }
.public-footer a { display: inline-flex; align-items: center; min-height: 44px; }
.public-footer a:hover { color: var(--amber); }
.public-footer-apps { flex-direction: column; }
@media (max-width: 1100px) {
  .public-nav { gap: 16px; }
  .public-header-inner { gap: 20px; }
  .public-hero { column-gap: 32px; }
  .public-hero h1 { font-size: 59px; }
  .public-material-spread { height: 355px; }
  .public-product-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .public-hero-offers { gap: 10px; }
  .public-hero-offer strong { font-size: 18px; }
  .public-hero-facts { gap: 20px; }
  .public-bank { grid-template-columns: minmax(0,1fr) 205px; gap: 30px; }
  .public-bank .public-actions { width: 205px; }
  .public-author-feature, .public-author { gap: 40px; }
}
@media (max-width: 800px) {
  .public-header-inner { flex-wrap: wrap; gap: 13px; padding: 18px 24px; }
  .public-brand { margin-right: auto; }
  .public-nav { order: 3; width: 100%; margin: 0; justify-content: space-between; }
  .public-nav a { font-size: 14px; }
  .public-main { padding: 20px 24px 55px; }
  .public-hero { grid-template-columns: minmax(0,1fr) minmax(0,.75fr); column-gap: 25px; }
  .public-hero h1 { font-size: 48px; }
  .public-hero .public-lead { font-size: 17px; }
  .public-hero-description { font-size: 14px; }
  .public-material-spread { height: 280px; }
  .public-hero-offers { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .public-hero-facts { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 25px; }
  .public-combo-grid, .public-library-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .public-combo-grid>.public-combo:last-child { grid-column: 1 / -1; }
  .public-library-grid>.public-product[data-format="full"] { grid-column: 1 / -1; }
  .public-site .public-topic-card { gap: 15px; padding: 19px; grid-template-columns: 83px minmax(0,1fr); }
  .public-site .topic-preview { width: 83px; height: 117px; }
  .public-site .topic-body h3 { font-size: 18px; }
  .public-bank, .public-full, .public-faq { grid-template-columns: minmax(0,1fr); gap: 25px; }
  .public-bank .public-actions { width: auto; flex-direction: row; }
  .public-bank .public-actions>.btn { width: auto; }
  .public-full>div:last-child { min-width: 0; }
  .public-full .btn { width: auto; }
  .public-price-row { gap: 20px; grid-template-columns: minmax(0,1fr) minmax(150px,1fr) auto; }
  .public-author-feature>img { height: 300px; }
  .public-author img { height: 350px; }
  .public-topic-detail { gap: 35px; }
  .public-footer { padding: 30px 24px; gap: 25px; grid-template-columns: 1fr 1fr; }
  .public-footer nav { grid-column: 2; grid-row: 1 / span 2; }
}
@media (max-width: 600px) {
  .public-header-inner { padding: 15px 20px; }
  .public-brand { font-size: 21px; }
  .public-brand img { width: 31px; height: 31px; }
  .public-login { font-size: 14px; padding: 10px 13px; min-height: 44px; }
  .public-nav { gap: 0 13px; flex-wrap: wrap; justify-content: flex-start; }
  .public-nav a { font-size: 14px; }
  .public-main { padding: 14px 20px 40px; }
  .public-hero { grid-template-columns: minmax(0,1fr); grid-template-areas: "copy" "sample" "details"; gap: 0; padding: 20px 0 30px; }
  .public-hero h1 { font-size: clamp(39px,10vw,57px); margin-bottom: 20px; }
  .public-hero .public-lead { font-size: 18px; }
  .public-hero-description { font-size: 15px; }
  .public-hero .public-actions { margin-top: 22px; display: grid; grid-template-columns: 1fr; gap: 10px; }
  .public-hero .public-actions>.btn { width: 100%; }
  .public-hero .public-sample { grid-area: sample; display: grid; grid-template-columns: 115px minmax(0,1fr); gap: 20px; align-items: center; margin: 25px 0 0; }
  .public-material-spread { height: 150px; }
  .public-sample-main { position: static; display: block; width: 106px; transform: none; box-shadow: none; }
  .public-sample-main img { width: 106px; height: 150px; object-fit: contain; }
  .public-sample-companion { display: none; }
  .public-sample figcaption { margin: 0; font-size: 14px; }
  .public-sample figcaption strong { font-size: 15px; }
  .public-hero-offers { grid-template-columns: repeat(2,minmax(0,1fr)); margin: 26px 0 15px; gap: 15px; }
  .public-hero-offer { min-height: 0; }
  .public-hero-offer strong { font-size: 22px; }
  .public-entry-links { gap: 0 20px; margin-top: 6px; }
  .public-hero-facts { gap: 21px; padding: 25px 0; }
  .public-hero-facts strong { font-size: 14px; }
  .public-hero-facts span { font-size: 14px; }
  .public-section { margin: 45px 0; }
  .public-site h2 { font-size: 29px; }
  .public-site .section-heading { align-items: flex-start; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
  .public-site .section-heading p { font-size: 14px; }
  .public-site .topic-grid, .public-product-grid, .public-library-grid, .public-combo-grid, .public-practice-grid { grid-template-columns: minmax(0,1fr); }
  .public-combo-grid>.public-combo:last-child, .public-library-grid>.public-product[data-format="full"] { grid-column: auto; }
  .public-site .public-topic-card { grid-template-columns: 86px minmax(0,1fr); gap: 17px; padding: 20px; }
  .public-site .topic-preview { width: 86px; height: 122px; }
  .public-site .topic-bottom { flex-wrap: wrap; gap: 2px 8px; }
  .public-site .panel { padding: 24px; }
  .public-product h3, .public-combo h3, .public-product h2 { font-size: 24px; }
  .public-product>.price-comparison, .public-combo>.price-comparison { padding-top: 22px; }
  .public-bank { margin: 45px 0; }
  .public-bank .public-actions { display: grid; grid-template-columns: minmax(0,1fr); }
  .public-bank .public-actions>.btn { width: 100%; }
  .public-site .public-full { padding: 27px; }
  .public-full .btn { width: 100%; }
  .public-method { grid-template-columns: minmax(0,1fr); gap: 28px; }
  .public-method li { display: grid; grid-template-columns: 35px minmax(0,1fr); gap: 6px 16px; }
  .public-method li::before { grid-row: 1 / span 2; margin: 0; }
  .public-method strong { font-size: 21px; margin: 2px 0 4px; }
  .public-method p { grid-column: 2; }
  .public-author-feature, .public-author { grid-template-columns: minmax(0,1fr); gap: 25px; margin: 55px 0; }
  .public-author-feature>img { width: 230px; height: 290px; }
  .public-author img { max-width: 310px; height: 380px; }
  .public-faq { gap: 20px; }
  .public-faq summary { font-size: 15px; }
  .public-site .page-heading { margin-top: 10px; }
  .public-site .page-heading h1 { font-size: clamp(32px,8.5vw,43px); }
  .public-site .page-heading p { font-size: 16px; }
  .public-periods { gap: 8px; }
  .public-search-row { flex-wrap: wrap; }
  .public-search-row input { flex-basis: 100%; }
  .public-search-row button { width: 100%; }
  .public-periods a { padding: 10px 12px; font-size: 14px; }
  .public-price-row { grid-template-columns: minmax(0,1fr); gap: 14px; }
  .public-price-row>.btn { grid-column: 1 / -1; width: 100%; }
  .public-period-price>summary { padding: 20px; font-size: 18px; }
  .public-period-price>div { padding: 0 20px 10px; }
  .public-metrics { grid-template-columns: minmax(0,1fr); gap: 18px; }
  .public-metrics li { display: flex; gap: 20px; align-items: center; padding-top: 18px; }
  .public-metrics strong { min-width: 102px; font-size: 30px; }
  .public-topic-detail { grid-template-columns: minmax(0,1fr); gap: 30px; }
  .public-topic-detail>figure { max-width: 275px; margin: auto; }
  .public-topic-detail>figure>img { max-height: 385px; }
  .public-neighbors, .public-next-grid { grid-template-columns: minmax(0,1fr); gap: 30px; }
  .public-next-offer+.public-next-offer { border-top: 1px solid var(--line); padding-top: 25px; }
  .public-next-offer>.btn { width: 100%; }
  .public-product-detail>.public-purchase-summary { grid-row: 1; }
  .public-product-detail>figure { grid-row: 2; }
  .public-product-detail .public-actions { display: grid; grid-template-columns: minmax(0,1fr); gap: 10px; }
  .public-product-detail .public-actions>.btn { width: 100%; }
  .public-product-topics ul { columns: 1; }
  .public-footer { grid-template-columns: minmax(0,1fr); gap: 20px; padding: 28px 20px 35px; }
  .public-footer nav { grid-column: auto; grid-row: auto; gap: 0 18px; }
  .public-footer-apps { flex-direction: row; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .public-site .btn { transition: none; }
}

/* V54: navigation and buying decisions stay readable on small screens. */
.public-site .btn, .public-site .text-link, .public-site .card-open { font-size: 16px; }
.public-home .public-nav { gap: 12px 20px; }
.public-nav-toggle { min-height: 44px; padding: 10px 15px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--ink); font-size: 16px; cursor: pointer; }
.public-site .public-product > p, .public-site .public-combo > p,
.public-site .section-heading p, .public-site .public-faq details > p { font-size: 17px; }
.public-site .public-format, .public-site .topic-meta,
.public-site .public-periods a { font-size: 15px; }
.public-site .public-faq summary { font-size: 18px; min-height: 48px; }
.public-site .public-hero-facts strong { font-size: 17px; }
.public-site .public-hero-facts span { font-size: 16px; }
.public-site input, .public-site select { font-size: 16px; }
.public-site .topic-preview:focus-visible { outline-offset: -4px; }
.public-site .public-product[data-format="full"] :focus-visible { outline-color: #FFFFFF; }
@media (max-width: 1050px) {
  .public-header-inner { gap: 18px; padding-inline: 24px; }
  .public-brand { font-size: 21px; }
  .public-nav { gap: 5px 16px; }
}
@media (max-width: 800px) {
  .public-header-inner, .public-home .public-header-inner { flex-wrap: wrap; padding: 14px 18px; gap: 12px; }
  .public-brand { margin-right: auto; }
  .public-nav-toggle { order: 1; }
  .public-login { order: 2; padding: 10px 14px !important; }
  .public-nav, .public-home .public-nav { order: 3; width: 100%; margin-left: 0; gap: 4px 18px; }
  .public-header[data-nav-enhanced="true"] .public-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); padding-top: 12px; }
  .public-nav a { min-height: 48px; padding: 8px 4px; font-size: 16px; line-height: 1.5; }
  .public-header[data-nav-enhanced="true"] .public-nav a:last-child { grid-column: 1 / -1; }
}
@media (max-width: 390px) {
  .public-header-inner, .public-home .public-header-inner { gap: 10px; padding-inline: 14px; }
  .public-brand { font-size: 18px; gap: 7px; }
  .public-brand img { width: 28px; height: 28px; }
  .public-nav-toggle, .public-login { padding-inline: 10px !important; }
  .public-site .public-topic-card { grid-template-columns: 64px minmax(0,1fr); gap: 12px; padding: 16px; }
  .public-site .topic-preview { width: 64px; height: 91px; }
}

/* The two complete bundles are discoverable before the per-topic catalogue. */
.public-bundle-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.public-bundle-grid .public-product { padding: clamp(24px, 3vw, 36px); }
.public-bundle-grid .public-product h3 { font-size: clamp(25px, 2.6vw, 32px); line-height: 1.2; }
.public-bundle-grid .price-current { font-size: clamp(36px, 4vw, 48px); line-height: 1.15; }
.public-bundle-grid .public-product > .btn { width: 100%; margin-top: auto; min-height: 48px; }
.public-bundle-difference { max-width: 72ch; margin: 24px 0 12px; font-size: 18px; line-height: 1.6; }
.public-bundle-difference strong { white-space: nowrap; }
@media (max-width: 650px) { .public-bundle-grid { grid-template-columns: minmax(0, 1fr); } }