/* Product-led composition: open cosmic showcase and transparent reading regions. */
:root {
  --site-width: 1160px;
  --gutter: clamp(16px, 4vw, 48px);
  --reading-inset: clamp(24px, 4.5vw, 64px);
  --section-space: clamp(56px, 8vw, 104px);
  --page-title-size: clamp(2.5rem, 5.2vw, 4.6rem);
  --section-title-size: clamp(1.8rem, 3.2vw, 3rem);
  --paper-ink: #f5f7ff;
  --paper-muted: #c5d2e4;
  --paper-quiet: #a8bad1;
  --paper-link: #8bdcff;
  --paper-line: #344c68;
}

html { scrollbar-gutter: stable; }
.site-header, main, footer {
  width: min(var(--site-width), calc(100% - var(--gutter) * 2));
  min-width: 0;
}
.cosmic-canvas { opacity: .48; }
/* Darken the reading area while letting the cosmic scenery show at the edges. */
.cosmic-backdrop::after {
  background: radial-gradient(ellipse 70% 115% at 50% 50%,
    #030409eb 0%, #030409d1 32%, #03040980 65%, #0304091f 100%);
}

/* Quiet navigation: links, not another dark floating panel. */
.site-header { gap: 24px; padding-block: 18px; border-bottom: 1px solid #8fb3cf30; }
.site-nav { flex-wrap: nowrap; background: transparent; border: 0; border-radius: 0; padding: 0; box-shadow: none; }
.site-nav a, .site-nav .nav-current {
  min-height: 44px;
  padding: 10px 15px;
  white-space: nowrap;
  border-radius: 0;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover { background: transparent; color: var(--text); border-bottom-color: var(--quiet); }
.site-nav .nav-current { background: transparent; color: var(--text); border-bottom-color: var(--accent); box-shadow: none; }

/* The app itself is the opening visual, using a real, sanitized capture. */
.product-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
  align-items: center;
  gap: clamp(32px, 6vw, 88px);
  padding-block: clamp(40px, 5vw, 72px) clamp(48px, 6vw, 88px);
  text-align: start;
  border: 0;
}
.product-hero > .hero-copy { display: flex; flex-direction: column; align-items: start; gap: 28px; padding: 0; }
.product-hero h1, .download-hero h1, .policy-hero h1, .tutorial-intro h1 {
  max-width: 19ch;
  margin: 0 0 24px;
  font-size: var(--page-title-size);
  line-height: 1.08;
  letter-spacing: -.035em;
  overflow-wrap: anywhere;
  text-align: start;
}
.product-hero h1 span, .download-hero h1 span, .policy-hero h1 span { color: inherit; }
.product-hero .hero-lead, .download-hero .hero-lead,
.policy-hero .hero-lead, .tutorial-intro .hero-lead {
  max-width: 60ch;
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  text-align: start;
}
.hero-conversion { width: 100%; align-items: start; padding: 0; }
.hero-conversion .hero-actions { width: auto; max-width: none; flex-direction: row; align-items: center; gap: 18px; }
.hero-conversion .secondary-button { background: transparent; border-color: transparent; padding-inline: 0; box-shadow: none; }
.hero-conversion .secondary-button:hover { color: var(--accent); text-decoration: underline; text-underline-offset: 5px; }
.hero-conversion .hero-note { max-width: 54ch; margin: 20px 0 0; text-align: start; font-size: .82rem; }
.product-app-preview { width: min(100%, 280px); justify-self: center; margin: 0; }
.app-preview-frame { overflow: hidden; border: 6px solid #20354d; border-radius: 30px; box-shadow: 0 24px 64px #02071170; }
.app-preview-frame img { display: block; width: 100%; height: auto; }
.product-app-preview figcaption { max-width: 34ch; margin: 18px auto 0; color: var(--muted); font-size: .75rem; line-height: 1.65; text-align: center; }

/* Open sections: typography and space make the groups, not repeated boxes. */
.product-section { margin-block-start: var(--section-space); padding: 0; }
.systems-section { display: block; margin-block-start: 0; padding-block-start: 40px; border-top: 1px solid #8fb3cf40; }
.systems-section > h2 { max-width: 24ch; margin: 0 0 24px; }
.systems-section > .section-lead { max-width: 66ch; margin: 0 0 28px; }
.product-section h2, .product-cta h2, .download-steps > h2 { font-size: var(--section-title-size); line-height: 1.18; letter-spacing: -.03em; }
.catalog-toolbar { flex-wrap: wrap; gap: 16px; margin-block-start: 24px; }
.catalog-controls { gap: 16px; }
.catalog-note { max-width: 72ch; margin-inline: auto; line-height: 1.8; }
.experience-section, .faq-section { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: clamp(28px, 6vw, 80px); align-items: start; }
.experience-list { grid-template-columns: minmax(0, 1fr); gap: 0; }
.experience-list article { display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 20px; padding-block: 26px; border-top: 1px solid #8fb3cf40; }
.experience-list article:first-child { padding-block-start: 0; border: 0; }
.experience-list svg { margin-block: 4px 0; }
.experience-list h3 { margin-block-end: 12px; }
.experience-list p, .faq-list p { max-width: 66ch; line-height: 1.85; }
.faq-section .section-lead { margin-block-start: 24px; }
.faq-list summary { padding-inline: 0 32px; }
.product-cta { margin-block: var(--section-space); padding: 40px 0 0; border-top: 1px solid #8fb3cf40; grid-template-columns: minmax(0, 1fr) auto; gap: 32px; }
.product-cta .hero-actions { flex-direction: column; align-items: stretch; }

/* Keep the approved reading layout directly over the existing cosmic scenery. */
.policy-content, .tutorial-guide, .download-steps {
  --text: var(--paper-ink);
  --muted: var(--paper-muted);
  --quiet: var(--paper-quiet);
  --accent: var(--paper-link);
  --outline: var(--paper-line);
  color-scheme: dark;
  color: var(--text);
  background: transparent;
  border: 0;
  border-radius: 4px;
  box-shadow: none;
  padding: var(--reading-inset);
}
.policy-content a:not(.primary-button), .tutorial-guide a:not(.primary-button) { color: var(--accent); }
.tutorial-guide .secondary-button { background: transparent; border-color: var(--accent); color: var(--accent); box-shadow: none; }
.tutorial-guide .secondary-button:hover { background: #1b3653; }
.policy-content ::selection, .tutorial-guide ::selection, .download-steps ::selection { background: #304e78; color: var(--paper-ink); }

.policy-hero, .tutorial-intro { max-width: 1040px; padding-block: 56px 44px; margin: 0; text-align: start; border: 0; }
.policy-hero .hero-copy { max-width: none; margin: 0; }
.policy-hero .hero-lead, .tutorial-intro .hero-lead { margin: 0 0 24px; }
.policy-meta { justify-content: start; }
.policy-author { margin-inline: 0; }
.quick-facts { max-width: none; margin: 0 0 56px; padding: 0; border-top: 1px solid #8fb3cf40; }
.quick-facts article { padding-block: 24px; }
.quick-facts article > div { grid-template-columns: minmax(180px, .7fr) minmax(0, 1.3fr); gap: 32px; }
.policy-shell { max-width: none; grid-template-columns: 220px minmax(0, 1fr); gap: 36px; padding-block-end: 0; }
.policy-nav { background: transparent; border: 0; border-radius: 0; padding: 0; }
.policy-nav summary { padding-block: 10px; border-bottom: 1px solid #8fb3cf40; }
.policy-nav a { padding-inline: 0; border-radius: 0; }
.policy-nav a:hover { background: transparent; color: var(--text); text-decoration: underline; text-underline-offset: 4px; }
.policy-content section { padding-block: 36px; gap: 22px; }
.policy-content section:first-child { padding-block-start: 0; }
.policy-content section:last-child { padding-block-end: 0; border: 0; }
.policy-content h2 { font-size: clamp(1.4rem, 2.2vw, 1.8rem); line-height: 1.3; }
.policy-content p, .policy-content li { max-width: 72ch; line-height: 1.85; }

.tutorial-page { padding-block-end: 0; }
.tutorial-intro .tutorial-note { max-width: 66ch; margin: 0; }
.tutorial-index { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; max-width: none; margin: 0 0 32px; padding: 0; }
.tutorial-index a { min-height: 56px; min-width: 0; padding: 12px 0; justify-content: start; text-align: start; border: 0; border-bottom: 2px solid #8fb3cf60; border-radius: 0; background: transparent; text-decoration: none; overflow-wrap: anywhere; }
.tutorial-index a:hover { border-bottom-color: var(--accent); color: var(--text); }
.tutorial-guide { max-width: none; padding-inline: 0; text-align: start; }
.tutorial-step { max-width: 960px; margin-inline: 0; grid-template-columns: minmax(0, 1fr) minmax(180px, 250px); gap: clamp(28px, 4vw, 56px); padding-block: 48px; align-items: start; }
.tutorial-step-text { grid-template-columns: minmax(0, 1fr); }
.tutorial-step-text > div, .tutorial-troubleshooting { margin-inline: 0; }
.tutorial-step > div { min-width: 0; }
.tutorial-checklist { max-width: 70ch; margin-block: 16px 24px; padding-inline-start: 24px; list-style: disc; }
.tutorial-checklist li { padding-inline-start: 4px; line-height: 1.75; overflow-wrap: break-word; }
.tutorial-checklist li + li { margin-block-start: 16px; }
.tutorial-checklist li::marker { color: var(--accent); }
.tutorial-step h2, .tutorial-troubleshooting h2 { margin-block-end: 24px; font-size: clamp(1.4rem, 2.4vw, 2rem); line-height: 1.3; }
.tutorial-step figure { width: 100%; max-width: 250px; justify-self: start; }
.tutorial-step figure a { border: 4px solid #20354d; border-radius: 20px; }
.tutorial-capture { position: relative; display: block; }
.tutorial-callouts { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.tutorial-callouts rect { fill: none; }
.tutorial-callout-edge { stroke: #030409; stroke-width: 12; }
.tutorial-callout-line { stroke: var(--accent); stroke-width: 6; }
.tutorial-callouts circle { fill: var(--accent); stroke: #030409; stroke-width: 4; }
.tutorial-callouts text { fill: #030409; font: 700 34px "Segoe UI", sans-serif; text-anchor: middle; dominant-baseline: central; }
.tutorial-troubleshooting { padding-block-start: 36px; }

/* Download is a concise introduction plus illustration, then a full-width guide. */
.download-layout { grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 40px 64px; align-items: center; }
.download-hero { width: 100%; grid-column: 1; grid-row: 1; padding-block: 56px 16px; text-align: start; }
.download-hero .hero-actions { margin-block-start: 28px; justify-content: start; }
.download-hero .hero-note { max-width: 58ch; margin: 24px 0 0; text-align: start; }
.download-art { position: static; grid-column: 2; grid-row: 1; width: 100%; max-width: 360px; padding: 24px 0 0; justify-self: center; }
.download-steps { grid-column: 1/-1; grid-row: 2; width: 100%; max-width: 1000px; justify-self: center; }
.download-steps > h2 { margin-block-end: 28px; }
.download-steps li { grid-template-columns: 40px minmax(0, 1fr); gap: 24px; padding-block: 28px; }
.download-steps li > strong { font-size: 1.8rem; color: var(--accent); }
.download-steps .hero-actions { max-width: none; flex-direction: row; flex-wrap: wrap; }
.download-steps .download-resource-button { flex: 1 1 280px; min-width: 0; }

footer { margin-block-start: var(--section-space); align-items: start; gap: 24px 40px; }
.footer-nav { flex-wrap: wrap; justify-content: end; gap: 8px 24px; min-width: 0; }
.footer-nav a { overflow-wrap: anywhere; }
footer > p { max-width: 72ch; }

@media (max-width: 1000px) {
  .site-header { grid-template-columns: minmax(0, 1fr) auto; gap: 12px 16px; }
  .site-nav { grid-column: 1/-1; grid-row: 2; justify-self: start; max-width: 100%; flex-wrap: wrap; justify-content: start; }
  .language-switcher { grid-column: 2; grid-row: 1; }
  .policy-shell { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .quick-facts article > div { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .product-hero { grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 32px; }
  .product-app-preview { max-width: 240px; }
  .download-layout { gap: 40px 32px; }
}
@media (max-width: 800px) {
  .experience-section, .faq-section { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .product-cta { grid-template-columns: minmax(0, 1fr); }
  .product-cta .hero-actions { flex-direction: row; flex-wrap: wrap; }
  footer { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .footer-nav, .footer-brand, .developer-link, footer > p { grid-column: 1; grid-row: auto; }
  .footer-nav { justify-content: start; }
}
@media (max-width: 760px) {
  .product-hero { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .product-hero > .hero-copy { gap: 24px; }
  .product-app-preview { width: 220px; max-width: 100%; }
  .product-hero h1, .download-hero h1, .policy-hero h1, .tutorial-intro h1 { max-width: 22ch; }
  .hero-conversion .hero-actions { width: 100%; align-items: stretch; flex-direction: column; gap: 8px; }
  .hero-conversion .secondary-button { align-self: start; }
  .tutorial-step { grid-template-columns: minmax(0, 1fr); }
  .tutorial-step figure { max-width: 280px; margin-inline: 0; justify-self: start; }
  .download-layout { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .download-art { grid-column: 1; grid-row: 2; max-width: 240px; padding: 0; }
  .download-steps { grid-column: 1; grid-row: 3; }
}
@media (max-width: 600px) {
  .tutorial-index { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .catalog-toolbar { justify-content: center; }
  .catalog-filters { justify-content: center; }
  .policy-section-heading { grid-template-columns: 20px minmax(0, 1fr); gap: 12px; }
  .product-cta .hero-actions, .download-steps .hero-actions { flex-direction: column; }
  .download-steps .download-resource-button { flex: auto; }
  .product-hero { padding-block-start: 36px; }
  .policy-hero, .tutorial-intro { padding-block: 36px; }
}
@media (max-width: 520px) {
  .site-nav { display: grid; width: 100%; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 16px; }
  .site-nav a, .site-nav .nav-current { justify-content: start; min-width: 0; padding-inline: 0; white-space: normal; overflow-wrap: anywhere; }
  .quick-facts article { gap: 14px; }
  .footer-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (forced-colors: active) {
  .policy-content, .tutorial-guide, .download-steps { --text: CanvasText; --muted: CanvasText; --quiet: CanvasText; --accent: LinkText; --outline: CanvasText; color: CanvasText; background: Canvas; border: 1px solid CanvasText; }
  .site-nav .nav-current { border-bottom-color: Highlight; }
  .app-preview-frame { border-color: CanvasText; box-shadow: none; }
}

/* Release journal: open reading on the existing cosmos, with one artwork-led feature. */
.news-page { margin-inline: auto; padding-block: 48px 0; }
.news-page h1 { font-size: var(--page-title-size); line-height: 1.08; letter-spacing: -.035em; max-width: 20ch; }
.news-page h2 { font-size: var(--section-title-size); line-height: 1.18; letter-spacing: -.03em; }
.news-page h3 { font-size: clamp(1.35rem, 2.7vw, 2rem); line-height: 1.25; }
.news-page p { max-width: 64ch; }
.news-page :is(h1, h2, h3, p, figcaption) { overflow-wrap: break-word; }
.news-intro { max-width: 840px; padding-block: 8px 48px; }
.news-intro .hero-lead { margin-block-start: 24px; }
.news-feature, .news-edition-intro { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); align-items: center; gap: 40px; }
.news-cover { display: block; min-width: 0; }
.news-cover img, .news-edition-art { display: block; width: 100%; height: auto; object-fit: contain; }
.news-edition-art { max-height: 380px; }
.news-edition-montage { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: center; gap: clamp(12px, 2vw, 28px); padding-block: 24px; }
.news-edition-montage img { display: block; width: 100%; height: auto; object-fit: contain; }
.news-feature h2 { margin-block: 12px 20px; }
.news-feature .primary-button { margin-block-start: 24px; white-space: normal; }
.news-version { color: var(--accent); margin: 0 0 16px; font-size: 1.05rem; }
.news-meta { color: var(--muted); font-size: .9rem; line-height: 1.8; margin-block-start: 24px; }
.news-hotfix { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 32px 48px; margin-block-start: 48px; padding-block: 32px; border-block: 1px solid var(--outline); }
.news-hotfix h2 { margin-block: 0 16px; font-size: clamp(1.4rem, 2.5vw, 2rem); }
.news-hotfix .news-hotfix-list { margin: 0; }
.news-hotfix-list li:first-child { margin-block-start: 0; }
.news-hotfix-list li:last-child { margin-block-end: 0; }
.news-topics, .news-archive { margin-block-start: var(--section-space); }
.news-topics > h2 { margin-block-end: 24px; }
.news-topic-row { display: grid; grid-template-columns: 40px minmax(0, 1fr) auto; align-items: start; gap: 24px; border-block-start: 1px solid var(--outline); padding-block: 32px; }
.news-topic-number { color: var(--accent); font-variant-numeric: tabular-nums; font-size: .95rem; line-height: 1.8; padding-block-start: 3px; }
.news-topic-row h3 { margin: 0 0 12px; font-size: clamp(1.25rem, 2.2vw, 1.65rem); }
.news-topic-row p { margin: 0; color: var(--muted); }
.news-topic-row > .text-link { white-space: nowrap; }
.news-topic-row > div { min-width: 0; }
.news-page .text-link { display: inline-flex; align-items: center; min-height: 44px; color: var(--accent); text-underline-offset: 5px; }
.news-page .text-link:hover { text-decoration: underline; }
.news-breadcrumb { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-block-end: 40px; color: var(--muted); }
.news-breadcrumb a { display: inline-flex; align-items: center; min-height: 44px; color: var(--accent); }
.news-edition-intro { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.news-edition-intro .hero-lead { margin-block-start: 24px; }
.news-edition-art { border-radius: 16px; }
.news-article { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); align-items: start; gap: clamp(32px, 5vw, 64px); }
.news-article .hero-lead { margin-block: 24px; }
.news-checklist { padding-inline-start: 22px; margin-block: 32px; max-width: 64ch; }
.news-checklist li { padding-inline-start: 6px; margin-block: 18px; line-height: 1.8; }
.news-checklist li::marker { color: var(--accent); }
.news-article-figure { margin: 0; min-width: 0; width: 100%; max-width: 480px; justify-self: center; }
.news-article-figure img { display: block; max-width: 100%; width: 100%; height: auto; object-fit: contain; }
.news-article-figure.news-capture { max-width: 300px; }
.news-article-figure.news-app-art { max-width: 256px; }
.news-image-link { display: block; border-radius: 8px; }
.news-article-figure figcaption { margin-block-start: 16px; color: var(--muted); font-size: .85rem; line-height: 1.7; }
.news-scope-note { margin-block: 56px 0; color: var(--muted); font-size: .9rem; border-block-start: 1px solid var(--outline); padding-block-start: 24px; }
.news-page a:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
@media (max-width: 1200px) and (min-width: 1001px) {
  .site-nav a, .site-nav .nav-current { padding-inline: 9px; }
}
@media (max-width: 800px) {
  .news-feature, .news-edition-intro, .news-article { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .news-hotfix { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .news-feature > .news-cover { order: 2; }
  .news-edition-art { max-width: 640px; }
  .news-article-figure { max-width: 640px; }
  .news-article-figure.news-capture { max-width: 300px; }
  .news-article-figure.news-app-art { max-width: 256px; }
  .news-topic-row { grid-template-columns: 32px minmax(0, 1fr); gap: 12px 20px; }
  .news-topic-row > .text-link { grid-column: 2; justify-self: start; }
}
@media (max-width: 520px) {
  .news-page { padding-block-start: 32px; }
  .news-topic-row { grid-template-columns: 28px minmax(0, 1fr); gap: 8px 12px; padding-block: 24px; }
  .news-edition-montage { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 340px; margin-inline: auto; gap: 0 20px; }
  .news-edition-montage img:first-child { grid-column: 1 / -1; width: 58%; justify-self: center; }
  .news-intro { padding-block-end: 32px; }
  .news-breadcrumb { margin-block-end: 24px; }
}
@media (forced-colors: active) {
  .news-page { color: CanvasText; }
  .news-page a, .news-page .news-version { color: LinkText; }
}

/* Source credits reuse the transparent policy reading layout. */
.core-credits { list-style: none; padding-inline-start: 0; margin-block: 24px; }
.core-credits > li { padding-block: 22px; border-block-end: 1px solid #8fb3cf40; }
.core-credits h3 { margin: 0 0 8px; font-size: 1.1rem; overflow-wrap: anywhere; }
.core-credits p { margin-block: 8px; overflow-wrap: anywhere; }
.core-credits code { white-space: normal; overflow-wrap: anywhere; }
.core-credit-links { display: flex; flex-wrap: wrap; column-gap: 24px; row-gap: 8px; }
.core-credit-links a { display: inline-block; padding-block: 4px; }