/* Product pages share WITHCHAT's landing typography, colors and components. */
.product-nav .nav-links { gap: 18px; }
.product-nav .nav-links a { white-space: nowrap; font-size: 13px; }
.product-nav [aria-current="page"] { color: var(--primary); font-weight: 800; }
.btn-l:disabled, .btn-l:disabled:hover { background: #e9edf5; color: #626c80; border: 1px solid #d7deeb; box-shadow: none; transform: none; cursor: not-allowed; opacity: 1; }
.product-nav a:focus-visible, .product-page a:focus-visible, .product-page summary:focus-visible { outline: 3px solid var(--primary); outline-offset: 4px; }
.product-page section[id], #download, #features, #plans, #security { scroll-margin-top: 126px; }
.download-alternative { color: var(--primary); font-size: 12px; margin-top: 6px; }
.office-banner { margin-top: 48px; padding: 32px; border: 1px solid #dbe4ff; border-radius: var(--radius-lg); background: var(--bg-soft); display: flex; align-items: center; justify-content: space-between; gap: 24px; text-align: left; }
.office-banner .eyebrow { margin-bottom: 8px; font-size: 11px; }
.office-banner h3 { margin: 0 0 8px; font-size: 20px; }
.office-banner p { margin: 0; color: var(--ink-soft); font-size: 14px; }
.office-banner-actions { display: flex; flex-direction: column; gap: 10px; flex-shrink: 0; }
.product-hero { padding: 76px 0 56px; background: linear-gradient(180deg, #f6f8fd, #fff); }
.product-hero-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 56px; align-items: center; }
.product-hero h1 { margin: 0 0 22px; font-size: clamp(34px, 4.5vw, 54px); line-height: 1.3; letter-spacing: -.045em; font-weight: 900; }
.product-hero h1 .accent { color: var(--primary); }
.product-lead { font-size: 17px; color: var(--ink-soft); margin: 0 0 26px; line-height: 1.9; }
.product-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.product-caption { font-size: 12px; color: var(--ink-soft); margin: 18px 0 0; }
.format-stack { padding: 32px; background: var(--navy); border-radius: 24px; color: #fff; box-shadow: var(--shadow-pop); }
.format-stack-label { color: #b9c7ff; font-size: 12px; letter-spacing: .14em; margin: 0 0 24px; }
.format-row { display: flex; align-items: center; gap: 16px; padding: 20px 0; border-top: 1px solid rgba(255,255,255,.15); }
.format-icon { width: 52px; height: 60px; display: grid; place-items: center; border-radius: 8px; background: #e9eeff; color: var(--primary-deep); font-size: 13px; font-weight: 900; flex-shrink: 0; }
.format-row strong { display: block; font-size: 17px; }
.format-row p { margin: 4px 0 0; color: #c0c8df; font-size: 13px; }
.format-stack-note { color: #c0c8df; font-size: 12px; margin: 22px 0 0; }
.product-section { padding: 72px 0; }
.product-section.soft { background: var(--bg-soft); }
.product-section .section-sub { max-width: 730px; margin-bottom: 32px; }
.product-features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.product-feature { padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; }
.product-feature .material-icons-outlined { color: var(--primary); font-size: 28px; }
.product-feature h3 { font-size: 18px; margin: 16px 0 10px; }
.product-feature p { font-size: 14px; color: var(--ink-soft); margin: 0; }
.product-shot { margin: 0; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: var(--bg-soft); box-shadow: var(--shadow-card); }
.product-shot img { width: 100%; height: auto; display: block; }
.product-shot figcaption { padding: 16px 22px; font-size: 13px; color: var(--ink-soft); }
.product-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; padding: 0; list-style: none; }
.product-steps li { padding-top: 20px; border-top: 2px solid #dbe4ff; }
.step-number { font-size: 13px; color: var(--primary); font-weight: 800; }
.product-steps h3 { margin: 10px 0; font-size: 19px; }
.product-steps p { margin: 0; font-size: 14px; color: var(--ink-soft); }
.product-notice { background: #fff8e7; border: 1px solid #f4dfa6; border-radius: 14px; padding: 20px 24px; color: #72511c; font-size: 14px; margin-top: 28px; }
.product-notice p { margin: 6px 0 0; }
.download-heading { text-align: center; max-width: 760px; margin: 0 auto; }
.download-heading .product-lead { margin-bottom: 0; }
.installer-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: 28px; align-items: start; }
.installer-card { border: 1px solid #ccd6ff; border-radius: 24px; padding: 36px; background: #fff; box-shadow: var(--shadow-card); }
.installer-heading { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.installer-heading .dl-icon { margin: 0; flex-shrink: 0; }
.installer-heading h2 { margin: 0; font-size: 24px; }
.installer-heading p { margin: 2px 0 0; font-size: 14px; color: var(--ink-soft); }
.installer-card > .btn-l { width: 100%; margin: 20px 0 12px; }
.installer-meta { margin: 20px 0; font-size: 14px; }
.installer-meta > div { display: grid; grid-template-columns: 100px minmax(0, 1fr); gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.installer-meta dt { color: var(--ink-soft); }
.installer-meta dd { margin: 0; overflow-wrap: anywhere; }
.installer-card details { font-size: 13px; margin-top: 14px; }
.installer-card summary { cursor: pointer; color: var(--ink-soft); }
.installer-card code { display: block; margin: 10px 0; font-size: 12px; overflow-wrap: anywhere; }
.installer-guide { padding: 8px 8px 8px 16px; }
.installer-guide h2 { font-size: 21px; margin: 0 0 20px; }
.installer-guide ol { padding-left: 22px; }
.installer-guide li { padding-left: 6px; margin-bottom: 22px; font-size: 14px; color: var(--ink-soft); }
.installer-guide li strong { display: block; color: var(--ink); margin-bottom: 5px; font-size: 16px; }
.download-faq { max-width: 800px; }
.download-faq details { border-bottom: 1px solid var(--line); padding: 20px 0; }
.download-faq summary { cursor: pointer; font-weight: 700; }
.download-faq p { color: var(--ink-soft); font-size: 14px; margin: 12px 0 0; }
.product-footer { padding: 36px 0; }
.product-footer .container-l { display: flex; gap: 24px; justify-content: space-between; flex-wrap: wrap; }
.product-footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.office-toc { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #fff; }
.office-toc .container-l { display: flex; flex-wrap: wrap; gap: 10px 26px; padding-top: 18px; padding-bottom: 18px; }
.office-toc a { color: var(--ink-soft); font-size: 14px; font-weight: 700; text-decoration: none; }
.office-toc a:hover { color: var(--primary); }
.office-toc a:focus-visible, .office-table-scroll:focus-visible, .product-shot a:focus-visible { outline: 3px solid var(--primary); outline-offset: 4px; }
.office-screen-notes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; margin-top: 32px; }
.office-screen-notes > div { padding-top: 22px; border-top: 1px solid var(--line); }
.office-screen-notes h3 { font-size: 18px; margin: 10px 0; }
.office-screen-notes p { font-size: 14px; color: var(--ink-soft); margin: 0; }
.office-screen-notes .material-icons-outlined { color: var(--primary); font-size: 27px; }
.office-detail-list { padding: 16px 0 0; margin: 18px 0 0; border-top: 1px solid var(--line); list-style: none; }
.office-detail-list li { position: relative; padding-left: 14px; margin: 0 0 9px; font-size: 13px; line-height: 1.8; color: var(--ink-soft); }
.office-detail-list li::before { content: ""; position: absolute; left: 0; top: .75em; width: 4px; height: 4px; border-radius: 50%; background: var(--primary); }
.office-detail-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; align-items: center; }
.office-detail-split > * { min-width: 0; }
.office-detail-split .section-sub { margin-bottom: 24px; }
.office-detail-split h3 { font-size: 25px; margin: 0 0 18px; line-height: 1.5; letter-spacing: -.025em; }
.office-detail-split p { color: var(--ink-soft); font-size: 15px; }
.office-format-detail { grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); margin-top: 44px; padding: 32px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); gap: 32px; }
.office-shortcuts { margin: 24px 0 0; font-size: 13px; }
.office-shortcuts > div { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; border-top: 1px solid var(--line); }
.office-shortcuts dd { margin: 0; white-space: nowrap; }
.office-shortcuts kbd { font: inherit; display: inline-block; min-width: 24px; padding: 1px 6px; text-align: center; border: 1px solid #dce1eb; border-bottom-width: 2px; border-radius: 5px; background: var(--bg-soft); }
.office-ai-example { padding: 32px; background: var(--navy); color: #fff; border-radius: var(--radius-lg); }
.office-ai-example .office-example-label { display: inline-block; font-size: 12px; color: #b8c7ff; margin-bottom: 22px; }
.office-ai-example h3 { font-size: 18px; margin-bottom: 12px; letter-spacing: 0; }
.office-ai-example blockquote { margin: 0; padding: 4px 0 4px 18px; border-left: 3px solid #91a6ff; font-size: 16px; line-height: 1.9; }
.office-ai-example p { font-size: 12px; color: #c4cee6; margin: 24px 0 0; }
.office-example-divider { height: 1px; background: rgba(255,255,255,.18); margin: 26px 0; }
.office-ai-steps { margin-top: 44px; margin-bottom: 0; }
.office-note, .office-detail-split .office-note { color: var(--ink-soft); font-size: 12.5px; line-height: 1.85; margin: 22px 0 0; }
.office-library-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.office-library-card { padding: 30px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; }
.office-library-card > .material-icons-outlined { color: var(--primary); font-size: 30px; }
.office-library-card h3 { margin: 14px 0 12px; font-size: 21px; }
.office-library-card p { margin: 0; font-size: 14px; color: var(--ink-soft); }
.office-sync-flow { margin-top: 28px; padding: 30px; border-radius: var(--radius-lg); border: 1px solid #dbe4ff; background: #eef2ff; }
.office-sync-flow h3 { font-size: 20px; margin: 0 0 24px; }
.office-sync-flow ol { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; margin: 0; padding: 0; list-style: none; counter-reset: sync-step; }
.office-sync-flow li { counter-increment: sync-step; }
.office-sync-flow li::before { content: counter(sync-step, decimal-leading-zero); display: block; font-size: 12px; font-weight: 800; color: var(--primary); margin-bottom: 8px; }
.office-sync-flow strong { font-size: 15px; }
.office-sync-flow li p { margin: 8px 0 0; font-size: 13px; color: var(--ink-soft); }
.office-use-cases { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.office-use-cases article { padding: 28px; background: #fff; border: 1px solid var(--line); border-top: 3px solid var(--primary); border-radius: 0 0 var(--radius-md) var(--radius-md); display: flex; flex-direction: column; }
.office-case-index { font-size: 11px; color: var(--primary); font-weight: 800; letter-spacing: .08em; }
.office-use-cases h3 { font-size: 21px; margin: 16px 0 12px; }
.office-use-cases p { color: var(--ink-soft); font-size: 14px; margin: 0 0 24px; }
.office-case-tools { font-size: 12px; color: var(--primary-deep); border-top: 1px solid var(--line); padding-top: 14px; margin-top: auto; }
.office-table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-md); }
.office-scope-table { width: 100%; min-width: 650px; border-collapse: collapse; text-align: left; font-size: 13.5px; }
.office-scope-table caption { padding: 16px 20px; text-align: left; color: var(--ink-soft); font-size: 13px; }
.office-scope-table th, .office-scope-table td { padding: 18px 20px; border-top: 1px solid var(--line); vertical-align: top; }
.office-scope-table thead th { background: var(--bg-soft); font-weight: 700; }
.office-scope-table tbody th { white-space: nowrap; font-weight: 700; }
.office-scope-table td { color: var(--ink-soft); }
@media (max-width: 1100px) {
    .product-nav .inner { height: auto; min-height: 66px; flex-wrap: wrap; padding-top: 12px; }
    .product-nav .brand-l { order: 0; }
    .product-nav .nav-cta { order: 1; margin-left: auto; }
    .product-nav .nav-links { display: flex; order: 2; width: 100%; overflow-x: auto; gap: 22px; padding: 14px 0 12px; }
    .product-nav .nav-links a { flex-shrink: 0; }
}
@media (max-width: 800px) {
    .product-hero-grid, .installer-grid { grid-template-columns: 1fr; gap: 28px; }
    .product-features { grid-template-columns: repeat(2, 1fr); }
    .product-hero { padding-top: 44px; }
    .product-section { padding: 52px 0; }
    .office-banner { flex-direction: column; align-items: stretch; padding: 24px; }
    .office-banner-actions { flex-direction: row; flex-wrap: wrap; }
    .office-banner-actions a, .office-banner-actions button { flex: 1; }
    .product-steps { grid-template-columns: 1fr; gap: 22px; }
    .installer-guide { padding: 0; }
    .office-detail-split, .office-library-grid, .office-use-cases { grid-template-columns: 1fr; gap: 24px; }
    .office-screen-notes, .office-sync-flow ol { grid-template-columns: 1fr; gap: 22px; }
    .office-format-detail { padding: 24px; }
}
@media (max-width: 560px) {
    .product-nav .nav-links { display: grid; grid-template-columns: repeat(4, max-content); gap: 8px 16px; overflow-x: visible; }
    .product-nav .nav-links a:nth-last-child(-n+2) { grid-column: span 2; }
    .product-page section[id], #download, #features, #plans, #security { scroll-margin-top: 170px; }
    .product-features { grid-template-columns: 1fr; }
    .product-actions { flex-direction: column; }
    .format-stack, .installer-card { padding: 24px; }
    .product-notice { padding: 18px; }
    .office-banner-actions { flex-direction: column; }
    .installer-meta > div { grid-template-columns: 78px minmax(0, 1fr); }
    .office-ai-example, .office-sync-flow, .office-library-card { padding: 24px; }
    .office-toc .container-l { gap: 10px 20px; }
    .office-toc a { font-size: 13px; }
}