/* Extensions to the original Stack Eleven design. Keep hero styling in styles.css. */
.skip-link { position: fixed; top: -80px; left: 24px; z-index: 100; padding: 12px 20px; background: var(--ink); color: var(--paper); }
.skip-link:focus { top: 12px; }
.nav-links a[aria-current="page"], .mobile-menu-links a[aria-current="page"] { color: var(--green-dark); }
.text-link, .store-link, .social-link { display: inline-flex; align-items: center; gap: 12px; width: fit-content; min-height: 44px; padding: 8px 0; font-size: .95rem; font-weight: 500; text-decoration: none; border: 0; border-radius: 0; background: none; color: inherit; transition: color 160ms ease-out, transform 160ms ease-out; }
.store-links { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 28px; }
.store-link { font-weight: 600; padding: 10px 18px; border: 1px solid var(--line); border-radius: var(--radius-control); }
.social-link { font-size: .9rem; }
.contact-actions, .mobile-menu-actions { gap: 12px 28px; }
.text-link:active, .store-link:active, .social-link:active, .menu-btn:active, .mobile-menu-close:active { transform: scale(.97); transition-duration: 80ms; }
@media (hover: hover) and (pointer: fine) {
  .text-link:hover, .store-link:hover, .social-link:hover, .team-profile:hover { color: var(--green-dark); text-decoration-color: currentColor; }
  .contact .social-link:hover { color: var(--green); }
  .store-link:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
  .product-row:hover h3, .next-product:hover { color: var(--green-dark); }
}
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 40px; }
.section-heading h2 { font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1.06; margin-top: 18px; }
.product-row { display: grid; grid-template-columns: 32px 72px minmax(0, 1fr); align-items: center; gap: 32px; border-top: 1px solid var(--line); padding: 32px 0; }
.product-row:last-child { border-bottom: 1px solid var(--line); }
.product-row img { width: 72px; height: 72px; border-radius: var(--radius-product); }
.row-number { font: .7rem var(--mono); color: var(--green-dark); }
.product-row h3 { font-size: clamp(1.6rem, 3vw, 2.4rem); margin: 10px 0; }
.product-row-copy > p { color: var(--muted); }
.product-row .eyebrow { font-size: .64rem; }
.page-intro { padding-top: 80px; padding-bottom: 64px; }
.page-intro h1 { font-size: clamp(2.8rem, 5.5vw, 5rem); line-height: 1.02; margin-top: 24px; max-width: 20ch; }
.page-lead { max-width: 58ch; color: var(--muted); font-size: 1.13rem; line-height: 1.7; margin-top: 28px; }
.catalog-entry { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; border-top: 1px solid var(--line); padding: 56px 0; align-items: center; }
.catalog-copy > img { width: 64px; height: 64px; border-radius: var(--radius-product); margin-bottom: 24px; }
.catalog-copy h2 { font-size: clamp(2rem, 4vw, 3.6rem); line-height: 1.04; margin: 0 0 22px; }
.catalog-copy > p:not(.eyebrow) { color: var(--muted); max-width: 42ch; font-size: 1.1rem; }
.catalog-copy .text-link { margin-top: 28px; }
.catalog-category { margin: 0 0 16px; }
.catalog-visual { display: flex; justify-content: center; padding: 28px; background: #e9ede8; }
.catalog-visual.intopass { background: #e6e9ee; }
.catalog-visual img { width: min(100%, 224px); height: auto; border-radius: var(--radius-screen); }
.flux-summary { display: block; padding: 48px; background: #eceee7; }
.flux-summary h3 { font-size: 2rem; margin-bottom: 28px; }
.flux-summary p { color: var(--muted); padding: 8px 0; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 14px; padding-top: 32px; font-size: .78rem; color: var(--muted); }
.breadcrumb a { text-decoration: underline; text-decoration-color: var(--line); text-underline-offset: 4px; }
.product-intro { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 72px; align-items: center; padding: 40px 0 48px; }
.product-app-icon { width: 64px; height: 64px; border-radius: var(--radius-product); margin-bottom: 28px; }
.product-intro h1 { font-size: clamp(2.8rem, 5vw, 4.5rem); line-height: 1.02; max-width: 15ch; }
.product-description { font-size: 1.08rem; line-height: 1.7; color: var(--muted); max-width: 49ch; margin-top: 28px; }
figure { margin: 0; }
.product-cover { background: #e9ede8; padding: 28px; display: flex; align-items: center; flex-direction: column; }
.intopass .product-cover, .intopass .screen-surface { background: #e6e9ee; }
.product-cover img { width: min(100%, 234px); height: auto; border-radius: var(--radius-screen); }
.product-story { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; padding: 64px 0; }
.product-story h2 { font-size: clamp(2rem, 3vw, 2.8rem); line-height: 1.1; margin-bottom: 22px; }
.product-story p { color: var(--muted); max-width: 49ch; line-height: 1.75; }
.capabilities { display: grid; gap: 32px; }
.capabilities h3 { font-size: 1.2rem; line-height: 1.2; margin-bottom: 10px; }
.capabilities p { font-size: .97rem; }
.screens-section { padding: 32px 0 40px; }
.screen-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.screen-surface { background: #e9ede8; padding: 32px; display: flex; justify-content: center; }
.screen-surface img { width: min(100%, 252px); height: auto; border-radius: var(--radius-screen); }
.screen-pair figcaption { font-size: .85rem; padding-top: 16px; color: var(--muted); }
.product-colophon { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 16px 0 40px; }
.product-colophon p { font-size: .8rem; color: var(--muted); }
.product-colophon .text-link { font-size: .85rem; flex-shrink: 0; }
.next-product { border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 24px; align-items: center; padding: 32px 0 40px; font-size: 1.2rem; font-weight: 500; }
.ecosystem-intro { padding: 64px 0 32px; max-width: 860px; }
.ecosystem-intro h1 { font-size: clamp(2.8rem, 5.5vw, 5rem); line-height: 1.03; }
.ecosystem-intro .product-description { max-width: 64ch; }
.ecosystem-intro .text-link { margin-top: 24px; }
.team-profile { display: inline-block; min-height: 44px; padding: 6px 0; font: inherit; color: inherit; text-decoration: none; transition: color 160ms ease-out; }
.team-list li { grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); align-items: baseline; gap: 12px 40px; }
#team { padding-top: 32px; }
#principles .section-body > h2 { font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1.06; }
.catalog-visual:focus-visible, .flux-summary:focus-visible, .product-row:focus-visible { outline-offset: 6px; }
.nav-links a { display: inline-flex; align-items: center; min-height: 44px; }
.next-product { min-height: 88px; transition: color 160ms ease-out; }
.product-intro h1, .ecosystem-intro h1 { text-wrap: balance; }
.principles-grid { border: 0; gap: 40px; }
.principle { border: 0; padding: 0; min-height: 0; gap: 20px; }

/* Brief, reversible menu movement. Content is never staggered behind the action. */
.mobile-menu-panel { transition: transform 240ms cubic-bezier(.22, 1, .36, 1); }
.mobile-menu.is-closing .mobile-menu-panel { transition: transform 200ms cubic-bezier(.4, 0, 1, 1); }
.mobile-menu-backdrop, .mobile-menu.is-closing .mobile-menu-backdrop { transition: opacity 180ms ease-out; }
.mobile-menu-links a, .mobile-menu.is-open .mobile-menu-links a, .mobile-menu.is-closing .mobile-menu-links a,
.mobile-menu-actions, .mobile-menu.is-open .mobile-menu-actions, .mobile-menu.is-closing .mobile-menu-actions { opacity: 1; transform: none; transition: none; }
.menu-btn, .mobile-menu-close { transition: transform 160ms ease-out; touch-action: manipulation; }

@media (max-width: 900px) {
  .catalog-entry { gap: 32px; }
  .product-intro { gap: 32px; }
  .product-intro h1 { font-size: 2.9rem; }
  .product-cover { padding: 20px 16px; }
  .product-story { gap: 40px; }
  .principles-grid { gap: 32px; }
  .section-grid { gap: 24px; }
  .section-label { margin-bottom: 0; }
  .team-list li { grid-template-columns: 1fr; gap: 4px; }
  .team-list p { grid-column: 1; }
}
@media (max-width: 600px) {
  .section-heading { align-items: flex-start; flex-direction: column; gap: 20px; margin-bottom: 28px; }
  .product-row { grid-template-columns: 52px minmax(0, 1fr); gap: 18px; padding: 28px 0; }
  .product-row .row-number { display: none; }
  .product-row img { width: 52px; height: 52px; border-radius: var(--radius-product); }
  .product-row h3 { font-size: 1.5rem; line-height: 1.1; }
  .product-row-copy > p { font-size: .9rem; }
  .product-row .eyebrow { font-size: .58rem; line-height: 1.5; display: block; }
  .page-intro { padding-top: 48px; padding-bottom: 40px; }
  .page-intro h1 { font-size: clamp(2.5rem, 10vw, 3.5rem); }
  .page-lead { font-size: 1rem; margin-top: 22px; }
  .catalog-entry { grid-template-columns: 1fr; padding: 36px 0; gap: 28px; }
  .catalog-category { margin-top: 0; }
  .catalog-visual { padding: 24px; }
  .catalog-visual img { width: 210px; }
  .flux-summary { padding: 28px; }
  .breadcrumb { padding-top: 24px; font-size: .7rem; gap: 10px; }
  .product-intro { grid-template-columns: 1fr; padding: 32px 0; gap: 32px; }
  .product-intro h1 { font-size: clamp(2.5rem, 10vw, 3.3rem); }
  .product-description { font-size: 1rem; margin-top: 24px; }
  .store-links { gap: 12px; margin-top: 20px; }
  .product-cover { padding: 24px; }
  .product-cover img { width: 226px; }
  .product-story { grid-template-columns: 1fr; gap: 28px; padding: 32px 0; }
  .capabilities { gap: 24px; }
  .screen-pair { grid-template-columns: 1fr; gap: 28px; }
  .screen-surface { padding: 24px; }
  .product-colophon { align-items: flex-start; flex-direction: column; gap: 8px; }
  .next-product { font-size: 1.15rem; }
  .ecosystem-intro { padding: 40px 0 24px; }
  .ecosystem-intro h1 { font-size: clamp(2.5rem, 10vw, 3.3rem); }
  .team-list strong { font-size: 1.3rem; }
  .contact-actions, .mobile-menu-actions { gap: 8px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  .text-link, .store-link, .social-link, .menu-btn, .mobile-menu-close, .team-profile, .next-product { transform: none !important; transition: none; }
  .mobile-menu-panel, .mobile-menu.is-open .mobile-menu-panel, .mobile-menu.is-closing .mobile-menu-panel { transform: none; transition: none; }
}
@media (prefers-reduced-transparency: reduce) {
  .site-header { background: var(--paper); backdrop-filter: none; }
}
@media (prefers-contrast: more) {
  .store-link { border-color: currentColor; }
}

/* Reserve artwork geometry before download and decoding. */
.catalog-visual img, .product-cover img, .screen-surface img { aspect-ratio: 598 / 1300; object-fit: contain; }