.header-nav { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 26px; font-size: 14px; font-weight: 600; }
.header-nav a { display: inline-flex; align-items: center; min-height: 44px; }
.header-nav a:hover, .header-nav [aria-current="page"] { text-decoration: underline; text-underline-offset: 5px; }
.hero { grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(32px, 4vw, 64px); }
.hero-caption { margin-top: 16px; color: var(--muted); font-size: 14px; }
.availability { padding-left: 0; border-left: 0; }
.hero-guide-link { margin: -10px 0 30px; }
.text-link { text-decoration: underline; text-underline-offset: 4px; font-weight: 600; }
.text-link:hover { color: var(--accent-hover); }
.email-row button { color: var(--ink); }
.email-row button:hover { color: var(--surface); background: var(--ink); border-color: var(--ink); }
.workspace-showcase, .duo-feature, .agent-guides, .testflight-feature { padding: clamp(58px, 8vw, 106px) 0; border-bottom: 1px solid var(--line-strong); scroll-margin-top: 24px; }
.section-intro { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; gap: 32px 80px; margin-bottom: 36px; }
.section-intro h2 { margin: 0; }
.section-intro p { max-width: 57ch; margin: 0 0 18px; color: var(--ink-soft); font-size: 18px; line-height: 1.65; }
.gallery-tabs { display: flex; flex-wrap: wrap; gap: 4px 22px; margin-bottom: 22px; border-bottom: 1px solid var(--line); }
.gallery-tabs button { min-height: 48px; padding: 10px 2px; border: 0; border-bottom: 2px solid transparent; color: var(--muted); background: transparent; font: inherit; font-weight: 600; cursor: pointer; }
.gallery-tabs button[aria-selected="true"] { border-bottom-color: var(--ink); color: var(--ink); }
.gallery-tabs button:hover { color: var(--ink); }
.gallery-panel { min-width: 0; margin: 0 0 30px; }
.gallery-panel:last-child { margin-bottom: 0; }
.gallery-panel img { width: 100%; height: auto; object-fit: contain; }
.gallery-panel figcaption { max-width: 72ch; margin: 18px 0 0; color: var(--muted); font-size: 14px; }
.testflight-feature .gallery-panel { max-width: 1117px; margin-inline: auto; }
.feature-link { display: inline-flex; align-items: center; min-height: 44px; font-weight: 600; }
.feature-link:hover { color: var(--accent-hover); }
.mac-window { position: relative; container-type: inline-size; --capture-width: 1871; --capture-height: 1169; overflow: hidden; border: 0; border-radius: calc(2000% / var(--capture-width)) / calc(2000% / var(--capture-height)); background: #f2f2f7; box-shadow: none; }
/* Keep the same 12px controls in the capture's coordinates, including compact windows. */
.mac-window:has(> img[height="1299"]) { --capture-height: 1299; }
.mac-window:has(> img[width="1117"]) { --capture-width: 1117; --capture-height: 806; }
.mac-window-titlebar { position: absolute; z-index: 1; top: calc(1000cqw / var(--capture-width)); left: calc(1400cqw / var(--capture-width)); display: flex; align-items: center; gap: calc(600cqw / var(--capture-width)); pointer-events: none; }
.mac-window-titlebar span { display: block; width: calc(1200cqw / var(--capture-width)); aspect-ratio: 1; border-radius: 50%; }
.mac-window-close { background: #ff5f57; }
.mac-window-minimize { background: #febc2e; }
.mac-window-zoom { background: #28c840; }
.mac-window img { display: block; width: 100%; height: auto; border: 0; filter: none; }
.guide-links { border-top: 1px solid var(--line-strong); }
.guide-links > a { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.guide-links strong { display: block; margin-bottom: 5px; color: var(--ink); font-size: 24px; font-weight: 600; }
.guide-links span span { display: block; max-width: 65ch; color: var(--muted); }
.guide-links > a > span:last-child { font-size: 24px; }
.guide-links > a:hover strong { text-decoration: underline; text-underline-offset: 5px; }
.preview-process { grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr); }
.guide-page main { max-width: 1050px; }
.guide-hero { padding: clamp(48px, 8vw, 96px) 0 44px; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-bottom: 32px; color: var(--muted); font-size: 14px; }
.breadcrumbs a { text-decoration: underline; text-underline-offset: 4px; }
.guide-hero h1 { max-width: 950px; margin-bottom: 24px; font-size: clamp(40px, 6vw, 72px); }
.guide-lead { max-width: 68ch; margin-bottom: 20px; color: var(--ink-soft); font-size: clamp(18px, 2vw, 22px); line-height: 1.6; }
.guide-meta { color: var(--muted); font-size: 14px; }
.guide-section { padding: 44px 0 48px; border-top: 1px solid var(--line); }
.guide-section h2 { max-width: 26ch; margin-bottom: 22px; font-size: clamp(28px, 4vw, 40px); line-height: 1.14; }
.guide-section h3 { margin: 0 0 10px; font-size: 21px; line-height: 1.3; font-weight: 600; }
.guide-section p, .guide-section li { max-width: 72ch; color: var(--ink-soft); font-size: 17px; line-height: 1.7; }
.guide-section a { text-decoration: underline; text-underline-offset: 3px; }
.guide-section code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .87em; overflow-wrap: anywhere; }
.guide-section ul { padding-left: 22px; }
.guide-section li + li { margin-top: 10px; }
.setup-steps { list-style: none; padding: 0; margin: 0; counter-reset: setup; }
.setup-steps > li { display: grid; grid-template-columns: 32px minmax(0, 1fr); gap: 18px; max-width: none; padding: 28px 0; border-top: 1px solid var(--line); counter-increment: setup; }
.setup-steps > li::before { content: counter(setup); font-size: 18px; font-weight: 600; }
.setup-steps p:last-child { margin-bottom: 0; }
.command-example { max-width: 100%; margin: 20px 0; padding: 20px; overflow-x: auto; border: 1px solid var(--line); color: var(--ink); background: var(--surface); font-size: 14px; line-height: 1.7; }
.command-example code { white-space: pre; overflow-wrap: normal; }
.prompt-example { margin-top: 22px; max-width: 76ch; padding: 24px; border: 1px solid var(--line-strong); background: var(--surface); }
.prompt-example p { margin-bottom: 16px; }
.copy-button { min-height: 44px; padding: 8px 16px; border: 1px solid var(--ink); border-radius: 4px; color: var(--surface); background: var(--ink); font: inherit; font-weight: 600; cursor: pointer; }
.copy-button:disabled { opacity: .7; cursor: wait; }
.copy-status { min-height: 24px; margin: 12px 0 0 !important; font-size: 14px !important; }
.guide-section details { padding: 20px 0; border-bottom: 1px solid var(--line); }
.guide-section summary { min-height: 44px; padding: 8px 0; cursor: pointer; font-size: 18px; font-weight: 600; }
.guide-section details p { margin: 12px 0 0; }
.source-links { display: flex; flex-wrap: wrap; gap: 14px 26px; }
.duo-page .guide-hero { padding-bottom: 24px; }
.duo-page .image-gallery { margin-bottom: 64px; }
.duo-page .guide-section { padding-block: 50px; }
.guide-callout { margin-top: 24px; padding: 24px 0; border-top: 1px solid var(--line-strong); border-bottom: 1px solid var(--line-strong); }
.guide-callout p:last-child { margin-bottom: 0; }
.section-actions { display: flex; flex-wrap: wrap; gap: 16px 30px; margin-top: 24px; }
.section-actions a { display: inline-flex; align-items: center; min-height: 44px; }
button:focus-visible, a:focus-visible, summary:focus-visible, [tabindex="0"]:focus-visible { outline: 3px solid var(--ink); outline-offset: 5px; }
@media (max-width: 1140px) {
  .hero, .preview-process { grid-template-columns: minmax(0, 1fr); }
  .section-intro { gap: 28px 40px; }
}
@media (max-width: 700px) {
  .site-header { flex-wrap: wrap; gap: 4px 20px; padding-block: 16px 8px; }
  .header-nav { width: 100%; justify-content: space-between; gap: 4px 12px; font-size: 13px; }
  .section-intro { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .section-intro br { display: none; }
  .section-intro p { font-size: 17px; }
  .gallery-tabs { gap: 4px 16px; font-size: 14px; }
  .guide-links strong { font-size: 22px; }
  .guide-links span span { font-size: 15px; }
  .guide-section { padding-block: 34px; }
  .setup-steps > li { grid-template-columns: 22px minmax(0, 1fr); gap: 12px; }
  .command-example { padding: 14px; font-size: 12px; }
  .prompt-example { padding: 18px; }
}