/* Book and toolkit presentation layer. */
.nav-links .nav-book{color:#fff;font-weight:500}
.home-book-stage{position:relative;display:flex;min-height:590px;align-items:center;justify-content:center;text-decoration:none;color:inherit;isolation:isolate}
.home-book-stage::before{content:none}
.home-book-stage::after{content:none}

.home-book-object{position:relative;z-index:2;display:block;width:570px;transform:none}
.home-book-object,.book-visual .book-object{max-width:100%}
.home-book-object::after{content:none}
.home-book-object img{display:block;width:100%;height:auto;border:0}
.home-book-label{position:absolute;right:0;bottom:26px;width:278px;padding:18px 20px 20px;background:var(--navy);color:#fff;border-top:5px solid var(--signal);box-shadow:0 16px 32px rgba(7,29,54,.18)}
.home-book-label small{display:block;color:var(--signal);font-weight:600;letter-spacing:.06em;text-transform:uppercase;font-size:11px}
.home-book-label strong{display:block;margin-top:7px;font-size:22px;line-height:1.05}
.home-book-label span{display:block;margin-top:6px;color:#c8d1d8;font-size:13px;line-height:1.35}
.home-book-label b{display:block;margin-top:14px;font-size:13px;font-weight:600;color:#fff}

/* Book landing page */
.book-page .site-header{background:var(--navy);border-bottom-color:#ffffff2e}
.book-page .nav-links .nav-book{color:#fff;font-weight:600;text-decoration:underline;text-decoration-color:var(--signal);text-decoration-thickness:2px;text-underline-offset:6px}
.book-hero{background:linear-gradient(112deg,#f7f8f7 0%,#f3f5f4 62%,#e8edef 100%);border-bottom:1px solid var(--line)}
.book-hero-grid{min-height:710px;display:grid;grid-template-columns:minmax(0,1.04fr) minmax(390px,.96fr);align-items:center;gap:72px;padding:68px 0 76px}
.book-eyebrow{margin:0 0 18px;color:var(--signal);font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase}
.book-hero h1{max-width:720px;margin:0;color:var(--navy);font-size:clamp(58px,5.8vw,88px);line-height:.91;letter-spacing:-.045em}
.book-subtitle{max-width:650px;margin:25px 0 0;color:var(--navy);font-size:25px;line-height:1.18;font-weight:500}
.book-intro{max-width:680px;margin:17px 0 0;color:var(--muted);font-size:18px;line-height:1.55}
.book-meta{display:flex;flex-wrap:wrap;gap:12px 24px;margin-top:27px;padding-top:20px;border-top:1px solid var(--line)}
.book-meta span{min-width:125px;color:var(--muted);font-size:13px}.book-meta strong{display:block;color:var(--navy);font-size:19px;margin-bottom:3px}
.book-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:29px}.book-actions .btn[aria-disabled="true"]{opacity:.55;cursor:not-allowed}
.availability{display:inline-flex;align-items:center;gap:9px;margin-top:19px;color:var(--muted);font-size:13px}.availability::before{content:"";width:9px;height:9px;background:var(--signal);border-radius:50%}
.book-visual{position:relative;min-height:560px;display:flex;align-items:center;justify-content:center}
.book-visual::before{content:none}
.book-visual::after{content:none}
.book-visual .book-object{position:relative;z-index:2;width:590px;transform:none}
.book-visual .book-object::after{content:none}
.book-visual img{display:block;width:100%;height:auto;border:0}
.book-page-edge{position:absolute;z-index:1;top:3px;right:-20px;width:22px;height:calc(100% - 2px);background:linear-gradient(90deg,#9d9991 0%,#f8f5ee 34%,#d8d3c9 66%,#aaa59c 100%);clip-path:polygon(0 0,100% 2.2%,100% 98.2%,0 100%);box-shadow:8px 6px 13px rgba(7,29,54,.17)}
.book-bottom-edge{position:absolute;z-index:2;left:4px;right:-19px;bottom:-15px;height:17px;background:linear-gradient(180deg,#faf7f0 0%,#d5d0c6 66%,#9f9a92 100%);clip-path:polygon(0 0,100% 0,96.5% 100%,1% 62%)}
.book-ground-shadow{position:absolute;z-index:0;width:370px;height:68px;left:54%;bottom:42px;transform:translateX(-34%) rotate(-3deg);background:radial-gradient(ellipse at 18% 48%,rgba(7,29,54,.32) 0%,rgba(7,29,54,.2) 28%,rgba(7,29,54,.1) 52%,rgba(7,29,54,0) 76%);filter:blur(10px);pointer-events:none}
.book-visual .book-ground-shadow{width:390px;bottom:31px}
.book-release-tag{position:absolute;z-index:3;right:0;bottom:22px;width:250px;padding:18px 20px;background:var(--navy);color:#fff;border-top:5px solid var(--signal)}
.book-release-tag small{display:block;color:var(--signal);font-weight:600;text-transform:uppercase;letter-spacing:.07em}.book-release-tag strong{display:block;margin-top:6px;font-size:20px}.book-release-tag span{display:block;margin-top:6px;color:#cdd5dc;font-size:13px;line-height:1.35}
.book-section{padding:96px 0}.book-section.off{background:#fff}.book-section.navy{background:var(--navy);color:#fff}.book-section-head{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:78px;align-items:start;margin-bottom:52px}.book-section-head h2{margin:0;color:var(--navy);font-size:clamp(38px,4vw,58px);line-height:1;letter-spacing:-.03em}.book-section.navy .book-section-head h2{color:#fff}.book-section-head>p{margin:0;color:var(--muted);font-size:18px;line-height:1.55}.book-section.navy .book-section-head>p{color:#d4dde4}
.book-pillars{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.book-pillars article{padding:30px 28px 34px;border-right:1px solid var(--line)}.book-pillars article:last-child{border-right:0}.book-pillars span{color:var(--signal);font-weight:600}.book-pillars h3{margin:12px 0 9px;color:var(--navy);font-size:23px}.book-pillars p{margin:0;color:var(--muted);line-height:1.55}
.tool-intro{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:28px}.tool-intro p{max-width:760px;margin:0;color:#d4dde4;line-height:1.5}.tool-version{white-space:nowrap;color:var(--signal);font-weight:600;font-size:13px}
.tools-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid #40556b;border-left:1px solid #40556b}
.tool-item{display:grid;grid-template-columns:54px 1fr auto;gap:18px;align-items:start;padding:22px 22px 24px;border-right:1px solid #40556b;border-bottom:1px solid #40556b;color:#fff;text-decoration:none;min-width:0}.tool-item:hover,.tool-item:focus-visible{background:#0d2a49;outline:3px solid var(--signal);outline-offset:-3px}.tool-no{color:var(--signal);font-weight:600;font-size:17px}.tool-copy{min-width:0}.tool-copy strong{display:block;font-size:18px;line-height:1.15}.tool-copy span{display:block;margin-top:6px;color:#bfcbd4;font-size:13px;line-height:1.4}.tool-format{padding:5px 8px;border:1px solid #597086;color:#dce4e9;font-size:11px;font-weight:600}
.tool-previews{margin-top:58px;padding-top:44px;border-top:1px solid #40556b}.tool-preview-head{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:60px;align-items:end;margin-bottom:24px}.preview-eyebrow{margin:0 0 8px;color:var(--signal);font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase}.tool-preview-head h3{margin:0;color:#fff;font-size:34px;line-height:1.05}.tool-preview-head>p{margin:0;color:#c5d0d8;line-height:1.5}.tool-preview-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.tool-preview-card{display:block;background:#fff;color:var(--navy);text-decoration:none;border-top:5px solid var(--signal);overflow:hidden}.tool-preview-card:hover,.tool-preview-card:focus-visible{outline:3px solid var(--signal);outline-offset:3px}.tool-preview-card img{display:block;width:100%;height:auto;aspect-ratio:10/7;object-fit:cover;border:0}.tool-preview-card>span{display:grid;gap:5px;padding:17px 18px 19px}.tool-preview-card small{color:var(--muted);font-size:11px;font-weight:600;letter-spacing:.04em}.tool-preview-card strong{font-size:18px;line-height:1.15}.tool-preview-card b{margin-top:6px;color:#b64e00;font-size:12px;text-decoration:underline;text-underline-offset:3px}.preview-dialog{width:min(1120px,calc(100vw - 40px));max-height:calc(100vh - 40px);padding:0;border:0;background:#fff;color:var(--navy);box-shadow:0 30px 90px rgba(0,0,0,.45)}.preview-dialog::backdrop{background:rgba(2,14,28,.82)}.preview-dialog-bar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:15px 18px;background:var(--navy);color:#fff}.preview-dialog-close{min-width:44px;min-height:44px;padding:9px 14px;border:2px solid var(--signal);background:transparent;color:#fff;font:inherit;font-weight:600;cursor:pointer}.preview-dialog figure{margin:0;padding:18px}.preview-dialog figure img{display:block;width:100%;height:auto;max-height:calc(100vh - 150px);object-fit:contain;background:#e8ecef}.preview-dialog figcaption{margin-top:10px;color:var(--muted);font-size:12px;line-height:1.4}
.download-panel{display:grid;grid-template-columns:1fr auto;gap:44px;align-items:center;margin-top:42px;padding:28px 30px;background:#fff;color:var(--navy);border-top:6px solid var(--signal)}.download-panel>div{min-width:0}.download-panel strong{overflow-wrap:anywhere}.download-panel h3{margin:0;font-size:27px}.download-panel p{margin:8px 0 0;color:var(--muted);line-height:1.45}.download-panel .btn{white-space:nowrap}
.version-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px}.version-card{padding:30px;border:1px solid var(--line);background:#fff}.version-card h3{margin:0 0 18px;color:var(--navy);font-size:27px}.version-table{display:grid}.version-row{display:grid;grid-template-columns:170px 1fr;gap:18px;padding:12px 0;border-top:1px solid var(--line)}.version-row:first-child{border-top:0}.version-row strong{color:var(--navy)}.version-row span{color:var(--muted)}.notice{padding:30px;background:var(--off);border-top:5px solid var(--signal)}.notice h3{margin:0;color:var(--navy);font-size:24px}.notice p{margin:14px 0 0;color:var(--muted);line-height:1.6}
.book-cta{background:var(--signal);color:var(--navy);padding:64px 0}.book-cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}.book-cta h2{margin:0;font-size:46px;line-height:1}.book-cta p{margin:0 0 22px;font-size:17px;line-height:1.5}.book-cta .btn{background:var(--navy);color:#fff}
.prototype-note{position:fixed;right:16px;bottom:16px;z-index:20;padding:9px 12px;background:var(--signal);color:var(--navy);font-size:11px;font-weight:600;box-shadow:0 8px 20px rgba(7,29,54,.15)}

@media(max-width:1180px){.nav-links{gap:13px}.nav-links a{font-size:13px}.home-book-label{right:0}.book-hero-grid{gap:35px}.book-release-tag{right:-10px}}
@media(max-width:980px){.home-book-stage{min-height:500px}.home-book-label{right:7%}.book-hero-grid{grid-template-columns:1fr;gap:22px}.book-hero h1{font-size:68px}.book-visual{min-height:550px}.book-release-tag{right:10%}.book-section-head{grid-template-columns:1fr;gap:20px}.book-pillars{grid-template-columns:1fr}.book-pillars article{border-right:0;border-bottom:1px solid var(--line)}.book-pillars article:last-child{border-bottom:0}.tools-grid{grid-template-columns:1fr}.tool-preview-head{grid-template-columns:1fr;gap:12px}.tool-preview-grid{grid-template-columns:1fr}.tool-preview-card{display:grid;grid-template-columns:minmax(190px,.85fr) 1.15fr}.tool-preview-card>span{align-content:center}.version-grid{grid-template-columns:1fr}.book-cta-grid{grid-template-columns:1fr;gap:25px}}
@media(max-width:620px){.home-book-stage{min-height:425px;margin-top:10px}.home-book-stage::after{width:235px;bottom:28px}.home-book-object{width:390px}.home-book-label{width:218px;right:0;bottom:0;padding:14px 15px 16px}.home-book-label strong{font-size:18px}.home-book-label b{font-size:12px}.book-hero-grid{padding:44px 0 50px}.book-hero h1{font-size:49px;line-height:.94}.book-subtitle{font-size:21px}.book-intro{font-size:16px}.book-actions{display:grid}.book-visual{min-height:430px;min-width:0;width:100%}.book-visual::after{width:235px;bottom:28px}.book-visual .book-object{width:100%}.book-release-tag{width:216px;right:0;bottom:0;padding:14px 15px}.book-section{padding:64px 0}.book-section-head{margin-bottom:34px}.book-section-head h2{font-size:39px}.book-section-head>p{font-size:16px}.tool-intro{display:block}.tool-version{display:block;margin-top:14px}.tool-item{grid-template-columns:36px 1fr;gap:12px}.tool-format{grid-column:2;justify-self:start}.tool-previews{margin-top:42px;padding-top:34px}.tool-preview-head h3{font-size:29px}.tool-preview-grid{gap:14px}.tool-preview-card{display:block}.preview-dialog{width:calc(100vw - 20px);max-height:calc(100vh - 20px)}.preview-dialog-bar{padding:10px 12px}.preview-dialog figure{padding:10px}.preview-dialog figure img{max-height:calc(100vh - 135px)}.download-panel{grid-template-columns:1fr;padding:23px 20px}.download-panel .btn{width:100%}.version-row{grid-template-columns:1fr;gap:4px}.book-cta{padding:48px 0}.book-cta h2{font-size:38px}.prototype-note{position:static;text-align:center}.mobile-menu .nav-book{color:var(--navy)!important}.book-page .mobile-menu .nav-book{text-decoration:underline;text-decoration-color:var(--signal);text-underline-offset:5px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}