:root{color-scheme:light;--ink:#1d2a3a;--navy:#111111;--paper:#f4f4f1;--surface:var(--paper);--muted:#5c6878;--line:#d9dcdf;--soft:#e9eaeb;--accent:#294b6b;--accent-strong:#1d354e;--flight-blue:#294b6b;--shadow:0 22px 55px #0d25351f;font-family:"Segoe UI",Arial,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:19px/1.75 "Segoe UI",Arial,sans-serif}a{color:inherit;text-decoration:none;text-underline-offset:4px}a:hover{color:var(--accent-strong)}button,input{font:inherit}button{cursor:pointer}img{display:block;max-width:100%;height:auto}h1,h2,h3{font-family:"Segoe UI",Arial,sans-serif;letter-spacing:-.035em;line-height:1.16;margin:0 0 22px}h1{font-size:clamp(44px,4vw,68px);font-weight:650}h1 em{font-style:normal;color:var(--flight-blue)}h2{font-size:clamp(27px,2.4vw,36px);font-weight:600}p{margin:0 0 22px}.skip{position:fixed;top:-80px;left:15px;background:var(--surface);padding:10px 16px;z-index:120;font-size:16px}.skip:focus{top:10px}.masthead{min-height:112px;padding:17px 4.2vw;display:grid;grid-template-columns:auto minmax(220px,1fr) auto auto;gap:26px;align-items:center;color:var(--ink);background:var(--paper);position:sticky;top:0;z-index:60}.identity{display:flex;align-items:center;gap:18px}.brand{display:block;color:var(--ink);font-size:35px;font-weight:800;letter-spacing:2px;line-height:1;white-space:nowrap}.brand small{display:block;font-size:10px;letter-spacing:3.7px;margin-top:9px;font-weight:600}.edition{display:flex;flex-direction:column;gap:5px;border-left:1px solid var(--line);padding:4px 0 4px 16px;color:var(--ink)}.edition span{font:11px/1.3 monospace;letter-spacing:1px}.edition b{font-size:18px;letter-spacing:.4px}.masthead-note{display:flex;flex-direction:column;gap:6px;color:var(--ink);font-size:14px}.masthead-note span{font-size:12px;letter-spacing:1.1px;color:var(--muted)}.masthead-note b{font-weight:650}.top-nav{display:flex;gap:10px;align-items:center}.top-nav a{color:var(--ink);background:transparent;border:0;border-radius:4px;padding:10px 13px;font-size:14px;font-weight:650;white-space:nowrap}.top-nav a:hover{background:var(--soft);color:var(--accent)}.top-menu{display:none;background:transparent;color:var(--ink);border:1px solid var(--line);border-radius:4px;padding:8px 12px}.aircraft-strip{min-height:45px;padding:0 4.2vw;display:flex;align-items:center;gap:21px;background:var(--paper);border-bottom:1px solid var(--line);color:var(--ink)}.aircraft-strip span{font:11px monospace;letter-spacing:1.5px;color:var(--muted);margin-right:2px}.aircraft-strip b{font:700 13px monospace}.aircraft-strip i{font-size:13px;font-style:normal;color:var(--muted);border-left:1px solid #cbd3df;padding-left:17px}.landing{max-width:1560px;margin:auto}.hero{display:grid;grid-template-columns:.96fr 1.04fr;align-items:center;gap:clamp(36px,5vw,78px);min-height:600px;padding:61px 5vw 55px}.hero-copy{max-width:680px}.eyebrow,.article-kicker{color:var(--accent-strong);font:700 13px/1.45 monospace;letter-spacing:1.4px;margin-bottom:23px}.hero h1{font-size:clamp(50px,5.1vw,78px);margin-bottom:20px}.hero-copy>p{font-size:21px;line-height:1.75;color:var(--muted);max-width:610px;margin:0 0 27px}.hero-button{display:inline-flex;align-items:center;gap:28px;padding:13px 19px;background:var(--accent);color:#fff;border-radius:4px;font-size:16px;font-weight:700}.hero-button:hover{background:var(--accent-strong);color:#fff}.hero-meta{font:13px/1.5 monospace;letter-spacing:.8px;color:var(--muted);margin-top:28px}.hero-meta span{margin-left:15px;color:var(--flight-blue)}.hero-image{height:440px;position:relative;overflow:hidden;margin:0;background:#1b313d;box-shadow:var(--shadow);border-radius:4px}.hero-image img{width:100%;height:100%;object-fit:cover;object-position:center 50%}.hero-image:after{content:"";position:absolute;inset:35% 0 0;background:linear-gradient(0deg,#101f2be8,transparent)}.hero-image figcaption{position:absolute;z-index:1;left:25px;right:25px;bottom:19px;color:white;display:grid;grid-template-columns:1fr auto;gap:4px 16px;align-items:end}.hero-image figcaption span{grid-column:1/-1;color:#d6dce3;font:12px monospace;letter-spacing:1.5px}.hero-image figcaption b{font-size:22px;font-weight:600}.hero-image figcaption a{font-size:13px;color:#fff}.entry-section{padding:0 5vw 65px}.section-rule{border-top:1px solid var(--line);padding:17px 0;display:flex;justify-content:space-between;color:var(--muted);font:12px monospace;letter-spacing:1.6px}.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.entry-card{min-height:300px;padding:24px 24px 19px;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-top:4px solid var(--flight-blue);transition:transform .18s,box-shadow .18s}.entry-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);color:var(--ink)}.card-guide{border-top-color:var(--accent)}.card-sources{border-top-color:#58687c}.card-kicker{display:flex;gap:14px;color:var(--accent-strong);font:13px monospace;letter-spacing:.7px}.card-kicker span{color:var(--muted);font-size:12px}.entry-card h2{font-size:27px;line-height:1.28;margin:24px 0 12px}.entry-card h2 b{float:right;color:var(--accent);font-size:23px;font-weight:500}.entry-card p{font-size:17px;line-height:1.7;color:var(--muted);margin:0 0 22px}.card-bottom{border-top:1px solid var(--line);padding-top:14px;margin-top:auto;display:flex;justify-content:space-between;align-items:center;gap:9px;color:var(--muted);font:12px/1.5 monospace}.card-bottom strong{font:600 13px/1.4 "Segoe UI",Arial,sans-serif;color:var(--flight-blue);text-align:right}.card-guide .card-bottom strong{color:var(--accent-strong)}.approach{display:grid;grid-template-columns:1fr 1fr;gap:0 50px;padding:50px 5vw 60px;border-top:1px solid var(--line)}.approach .eyebrow{grid-column:1/-1}.approach h2{font-size:36px;line-height:1.3;font-weight:550}.approach p{font-size:18px;line-height:1.8;color:var(--muted);max-width:550px;margin:0}.footer{display:grid;grid-template-columns:1fr 1.3fr auto;gap:20px 35px;align-items:center;padding:27px 5vw;background:transparent;color:var(--ink)}.footer-brand{font-size:20px;font-weight:800;letter-spacing:1.8px;color:var(--ink)}.footer-brand small{display:block;font-size:10px;letter-spacing:2.6px;color:var(--muted);margin-top:5px}.footer p{font-size:14px;line-height:1.6;color:var(--muted);margin:0}.footer>div:last-child{display:flex;flex-direction:column;gap:5px;font-size:14px;color:var(--muted)}
.guide-page{max-width:1120px;margin:auto;padding:65px 5vw 90px}.guide-page h1{font-size:clamp(49px,5vw,72px)}.lead{max-width:800px;color:var(--muted);font-size:21px;line-height:1.75;margin-bottom:34px}.download-panel{display:grid;grid-template-columns:78px 1fr;gap:21px;align-items:center;max-width:850px;padding:24px;background:var(--surface);border:1px solid var(--line);border-left:5px solid var(--accent);margin:34px 0}.pdf-icon{height:81px;width:64px;display:grid;place-items:center;background:var(--navy);color:#d6dce3;font:700 15px monospace;clip-path:polygon(0 0,72% 0,100% 25%,100% 100%,0 100%)}.panel-label{font:12px monospace;letter-spacing:1.5px;color:var(--accent-strong)}.download-panel h2{font-size:28px;margin:3px 0 8px}.download-panel p{font-size:17px;color:var(--muted);margin:0 0 12px}.release-label{color:var(--accent-strong);font:12px monospace;border:1px solid var(--line);padding:5px 9px}.guide-meta{max-width:850px;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:38px 0}.guide-meta>div{border-top:1px solid var(--line);padding-top:12px;display:flex;flex-direction:column;gap:6px;font-size:16px}.guide-meta b{font-size:18px}.guide-meta span{color:var(--muted)}.guide-page .back-link{font-size:15px;color:var(--flight-blue);font-weight:650}
.reading-layout{display:grid;grid-template-columns:320px minmax(0,1fr);max-width:1680px;margin:0 auto;min-height:calc(100vh - 157px)}.contents-panel{position:sticky;top:0;height:calc(100dvh - 157px);min-height:460px;display:flex;overflow:hidden;background:var(--paper);border-right:1px solid var(--line)}.sidebar-scrollport{flex:1;min-width:0;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:none;scroll-behavior:smooth}.sidebar-scrollport::-webkit-scrollbar{width:0;height:0;display:none}.sidebar-inner{padding:26px 16px 28px 27px}.side-heading{display:flex;align-items:center;justify-content:space-between}.side-heading>a{font:12px monospace;letter-spacing:.6px;color:var(--muted)}.side-close{display:none}.contents-panel h2{font-size:25px;line-height:1.27;margin:23px 0 21px}.contents-panel label{display:block;font-size:14px;color:var(--muted);margin-bottom:6px}.contents-panel input{width:100%;height:43px;padding:8px 11px;border:1px solid #cbd3df;border-radius:2px;background:var(--paper);color:var(--ink);font-size:15px;margin-bottom:15px}.nav-section-title{display:flex;justify-content:space-between;border-top:1px solid #cbd3df;padding:12px 7px 7px;color:var(--muted);font:12px monospace;letter-spacing:1px}.nav-section-title span{font-size:11px}.nav-section-title.appendix{margin-top:12px}.side-nav{display:flex;flex-direction:column}.side-link{position:relative;display:grid;grid-template-columns:27px 1fr;gap:9px;align-items:baseline;padding:8px 9px;margin:1px 0;border-radius:2px;color:#35465e;font-size:15px;line-height:1.5}.side-link>span{font:12px monospace;color:var(--accent-strong)}.side-link:hover{background:var(--paper);color:var(--ink)}.side-link[aria-current=page]{background:var(--paper);color:var(--accent-strong);font-weight:650}.side-link[aria-current=page]:after{content:"";position:absolute;right:-17px;top:50%;transform:translateY(-50%);width:11px;height:11px;border-radius:50%;background:var(--accent)}.side-meta{border-top:1px solid #cbd3df;margin-top:18px;padding:13px 5px;color:var(--muted);font:11px/1.8 monospace;letter-spacing:.5px}.sidebar-controls{width:23px;flex:none;display:flex;flex-direction:column;justify-content:space-between;align-items:center;padding:13px 0 12px;color:#6b788a}.sidebar-controls button{width:22px;height:25px;min-height:25px;padding:0;border:0;background:transparent;color:inherit;font-size:18px;line-height:1}.sidebar-controls button:hover{color:var(--accent)}.reading-main{min-width:0;padding:0 clamp(36px,6vw,100px) 70px}.reading-toolbar{height:56px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:16px;color:var(--muted);font:12px monospace;letter-spacing:1px}.reading-toolbar>span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.reading-toolbar>span i{font-style:normal;color:var(--accent);padding:0 8px}.reading-toolbar>a{color:var(--flight-blue);font-size:13px;white-space:nowrap}.reading-toolbar button{display:none}.reading-article{max-width:1050px;margin:0 auto;padding:45px 0 30px}.article-kicker{font-size:13px;margin-bottom:20px}.reading-article h1{font-size:clamp(41px,3.6vw,54px);line-height:1.18;letter-spacing:-1.4px;margin:0 0 31px}.reading-article .lead{font-size:22px;line-height:1.6}.reading-article p{font-size:20px;line-height:1.88;margin:0 0 22px}.citation{font-size:14px;margin-left:4px;white-space:nowrap}.citation a{color:var(--accent-strong)}.story-image{margin:34px 0 39px;padding:0;background:var(--paper);border:0}.story-image img{width:100%;max-height:680px;object-fit:contain;background:var(--paper)}.story-image figcaption{padding:10px 9px 12px;font-size:15px;line-height:1.55;color:var(--muted)}.image-credit{color:var(--flight-blue);font-weight:650;margin-left:7px}.page-turn{display:flex;justify-content:space-between;gap:25px;border-top:1px solid var(--line);padding-top:19px;margin:35px auto 5px;max-width:1050px}.page-turn a{font-size:16px;color:var(--flight-blue);font-weight:650;max-width:48%}.page-turn a:last-child{text-align:right}.index-article .lead{font-size:20px}.record-list{list-style:none;padding:0;margin:27px 0}.record-list li{display:grid;grid-template-columns:48px minmax(0,1fr);gap:15px;padding:15px 0;border-top:1px solid var(--line);scroll-margin-top:20px}.record-list li>span{font:13px monospace;color:var(--accent-strong);padding-top:3px}.record-list p{font-size:17px;line-height:1.65;margin:0 0 5px}.record-list a,.muted-link{display:inline-block;font-size:15px;color:var(--flight-blue);margin:3px 15px 0 0}.muted-link{color:var(--muted)}.not-found{min-height:60vh;padding:80px 5vw;max-width:1200px;margin:auto}
@media(max-width:1100px){.masthead{grid-template-columns:auto 1fr auto auto;gap:18px;padding-inline:26px}.masthead-note{display:none}.top-nav{justify-content:flex-end}.reading-layout{grid-template-columns:280px minmax(0,1fr)}.reading-main{padding-inline:42px}.reading-article p{font-size:19px}}
@media(max-width:760px){.masthead{grid-template-columns:1fr auto auto;padding:14px 20px;min-height:79px}.brand{font-size:29px}.brand small{font-size:9px;letter-spacing:3px}.edition{padding-left:11px}.edition span{font-size:10px}.edition b{font-size:15px}.top-menu{display:block;grid-column:3;grid-row:1}.theme-toggle{grid-column:2;grid-row:1}.top-nav{display:none;grid-column:1/-1;flex-direction:column;align-items:stretch;gap:4px;padding:4px 0 7px}.top-nav.is-open{display:flex}.top-nav a{font-size:15px}.aircraft-strip{padding:8px 20px;gap:13px;flex-wrap:wrap}.aircraft-strip span{width:100%;font-size:10px}.aircraft-strip b{font-size:12px}.aircraft-strip i{font-size:12px;padding-left:10px}.hero{grid-template-columns:1fr;min-height:0;padding:41px 20px 39px;gap:24px}.hero h1{font-size:clamp(43px,10.8vw,62px)}.hero-copy>p{font-size:18px}.hero-meta{font-size:12px}.hero-meta span{display:block;margin:6px 0 0}.hero-image{height:280px}.hero-image figcaption{left:15px;right:15px;bottom:14px}.hero-image figcaption b{font-size:19px}.hero-image figcaption a{font-size:12px}.entry-section{padding:0 20px 42px}.entry-grid{grid-template-columns:1fr;gap:10px}.entry-card{min-height:250px;padding:19px}.entry-card h2{font-size:25px;margin:20px 0 10px}.entry-card p{font-size:16px}.card-bottom{font-size:11px}.card-bottom strong{font-size:12px}.approach{grid-template-columns:1fr;padding:36px 20px 40px;gap:5px}.approach .eyebrow{grid-column:auto}.approach h2{font-size:29px;margin-bottom:9px}.approach p{font-size:16px}.footer{grid-template-columns:1fr;gap:14px;padding:24px 20px}.footer p{font-size:13px}.footer>div:last-child{flex-direction:row;gap:17px;font-size:13px}.guide-page{padding:39px 20px 58px}.guide-page h1{font-size:clamp(43px,10vw,62px)}.lead{font-size:18px}.download-panel{grid-template-columns:54px 1fr;gap:13px;padding:15px;margin:25px 0}.pdf-icon{width:48px;height:60px;font-size:13px}.download-panel h2{font-size:24px}.download-panel p{font-size:15px}.release-label{font-size:11px}.guide-meta{grid-template-columns:1fr;gap:10px;margin:28px 0}.guide-meta>div{font-size:15px}.guide-meta b{font-size:17px}.reading-layout{display:block;min-height:0}.contents-panel{display:none;position:fixed;z-index:50;inset:0;width:min(90vw,390px);height:100dvh;min-height:0;box-shadow:var(--shadow)}.contents-panel.is-open{display:flex}.sidebar-inner{padding:20px 12px 25px 18px}.side-close{display:block;border:0;background:transparent;color:var(--ink);font-size:27px;padding:0 6px}.sidebar-controls{display:none}.reading-main{padding:0 20px 50px}.reading-toolbar{height:52px;font-size:10px}.reading-toolbar button{display:block;background:var(--navy);color:white;border:0;border-radius:2px;padding:7px 9px;font-size:13px;white-space:nowrap}.reading-toolbar>a{display:none}.reading-article{padding:29px 0 23px}.article-kicker{font-size:12px;margin-bottom:14px}.reading-article h1{font-size:clamp(35px,9vw,46px);margin-bottom:23px}.reading-article .lead{font-size:19px}.reading-article p{font-size:18px;line-height:1.82;margin-bottom:18px}.story-image{margin:24px 0 28px;padding:6px 6px 0}.story-image figcaption{font-size:14px}.page-turn{gap:14px}.page-turn a{font-size:14px}.record-list li{grid-template-columns:37px minmax(0,1fr);gap:10px;padding:12px 0}.record-list p{font-size:15px}.record-list li>span{font-size:12px}.record-list a,.muted-link{font-size:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}
.contents-panel{top:112px;height:calc(100dvh - 112px)}
.guide-figure img{width:auto;height:auto;max-width:100%;max-height:min(78vh,900px);margin:0 auto;object-fit:contain}
.reading-article h2{margin:34px 0 14px;font-size:clamp(27px,2.1vw,34px)}
.reading-article h1{font-size:clamp(42px,3.7vw,56px)}
.reading-article .source-note{padding:10px 14px;border-left:3px solid var(--accent);background:var(--paper);color:var(--muted);font-size:15px;line-height:1.65}
.check-item{display:grid;grid-template-columns:24px minmax(0,1fr);gap:12px;align-items:start;margin:0 0 14px;padding:13px 15px;background:var(--surface);border:1px solid var(--line);font-size:18px;line-height:1.65;cursor:pointer}
.check-item input{width:19px;height:19px;margin:5px 0 0;accent-color:var(--flight-blue)}
.check-item:has(input:checked){background:var(--paper);color:#586970}
.check-item:has(input:checked) span{text-decoration:line-through;text-decoration-color:#8796aa}
.start-links{display:grid;gap:9px;margin:34px 0 38px;max-width:900px}
.start-links a{display:grid;grid-template-columns:43px minmax(0,1fr) auto;gap:16px;align-items:center;padding:17px 18px;background:var(--paper);border:1px solid var(--line);border-left:4px solid var(--accent)}
.start-links a>span{font:14px monospace;color:var(--accent-strong)}
.start-links a>b{font-size:19px;font-weight:650}
.start-links a>i{font-size:15px;font-style:normal;color:var(--flight-blue)}
.guide-scope{display:flex;flex-direction:column;gap:6px;padding-top:14px;border-top:1px solid var(--line);font-size:16px;color:var(--muted)}
.guide-scope b{font-size:17px;color:var(--ink)}
.reading-article .lead{font-size:22px;line-height:1.65}
.record-list li>div>p{font-size:17px}
.record-list a{font-weight:600}
@media(max-width:760px){.contents-panel{top:0;height:100dvh}.reading-article h1{font-size:clamp(36px,9vw,48px)}.reading-article h2{font-size:27px}.reading-article .lead{font-size:19px}.check-item{font-size:16px;padding:11px 12px}.start-links a{grid-template-columns:34px minmax(0,1fr);gap:6px 12px;padding:14px}.start-links a>b{font-size:17px}.start-links a>i{grid-column:2;font-size:14px}.guide-scope{font-size:14px}}

:root[data-theme=dark]{color-scheme:dark;--ink:#e8edf2;--navy:#090b0e;--paper:#15191e;--surface:var(--paper);--muted:#aeb8c3;--line:#38414a;--soft:#222930;--accent:#9cb4cb;--accent-strong:#c1d0de;--flight-blue:#a9c4dc;--shadow:0 22px 55px #0008}
.theme-toggle{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:8px 11px;background:transparent;color:var(--ink);border:1px solid var(--line);border-radius:4px;font-size:14px;font-weight:650;white-space:nowrap}.theme-toggle:hover{background:var(--soft)}.theme-symbol{font-size:18px;line-height:1}
.story-image figcaption{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}
@media(max-width:760px){.theme-toggle{min-height:40px;padding:7px 9px;font-size:13px}.theme-symbol{font-size:17px}}

.checklist-app{margin:28px 0 45px}.checklist-intro{max-width:1000px;margin-bottom:30px}.checklist-intro p,.checklist-kind-note,.check-phase-note{font-size:17px;line-height:1.65;color:var(--muted)}.checklist-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin:0 0 30px;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.checklist-variants,.checklist-types{display:flex;flex-wrap:wrap;gap:7px}.checklist-choice,.checklist-reset{min-height:44px;padding:8px 15px;background:transparent;color:var(--ink);border:1px solid var(--line);border-radius:3px;font-size:16px;font-weight:650}.checklist-choice:hover,.checklist-reset:hover{background:var(--soft)}.checklist-choice[aria-pressed=true]{background:var(--ink);color:var(--paper);border-color:var(--ink)}.checklist-types{margin-left:auto}.checklist-reset{font-size:14px;font-weight:500}.checklist-kind-panel>h2{margin:0 0 14px}.checklist-kind-note{max-width:1000px;margin:0 0 26px}.check-section{margin:0 0 15px;border:1px solid var(--line);background:var(--surface)}.check-section>summary{padding:15px 18px;font-size:20px;font-weight:650;cursor:pointer}.check-items{padding:0 15px 5px}.check-items .check-item{max-width:none}.check-phase-note{padding:0 18px;margin:0 0 15px;font-size:16px}.checklist-variant-panel[hidden],.checklist-kind-panel[hidden]{display:none!important}
@media(max-width:760px){.checklist-toolbar{gap:9px}.checklist-types{margin-left:0}.checklist-choice{min-height:42px;padding:7px 11px;font-size:15px}.checklist-reset{margin-left:auto}.check-section>summary{font-size:18px;padding:13px 14px}.check-items{padding:0 10px 4px}.check-phase-note{padding:0 13px;font-size:15px}.checklist-intro p,.checklist-kind-note{font-size:16px}}
.nav-section-toggle{width:100%;text-align:left;background:transparent;border:0;cursor:pointer}.nav-section-toggle:focus-visible{outline:2px solid var(--flight-blue);outline-offset:2px}.nav-section-toggle>i{font:14px/1 Arial,sans-serif;color:var(--muted);transition:transform .15s}.nav-section-toggle[aria-expanded=false]>i{transform:rotate(-90deg)}.nav-group-links{display:flex;flex-direction:column}.nav-group-links[hidden]{display:none!important}
.nav-section-toggle{font:700 18px/1.35 "Segoe UI",Arial,sans-serif;letter-spacing:.2px;color:var(--ink)}
.side-link{font-size:17px}
:root[data-theme=dark] .side-link:not([aria-current=page]){color:var(--muted)}
.footer-logo img{width:48px;height:auto}.nav-history-link{font:700 18px/1.35 "Segoe UI",Arial,sans-serif;letter-spacing:.2px;color:var(--ink)}.nav-history-link>i{font:14px/1 Arial,sans-serif;color:var(--muted)}:root[data-theme=dark] .footer-logo img{filter:brightness(0) invert(1)}

.download-page{max-width:1160px;min-height:calc(100vh - 220px);margin:0 auto;padding:58px 5vw 88px}.download-page>h1{font-size:clamp(46px,5vw,68px);margin:12px 0 32px}.download-card{display:grid;grid-template-columns:minmax(220px,.72fr) minmax(0,1.28fr);max-width:980px;background:var(--surface);border:1px solid var(--line)}.download-cover{min-height:390px;padding:30px;display:flex;flex-direction:column;justify-content:space-between;background:#18263a;color:#f4f4f1;border-top:5px solid #3972ad}.download-cover>span{font:700 14px monospace;letter-spacing:2px}.download-cover>b{font-size:clamp(31px,4vw,48px);line-height:1.05;letter-spacing:-1px}.download-cover>small{font:13px/1.7 monospace;letter-spacing:1px;color:#c9d4df}.download-copy{padding:34px clamp(24px,4vw,48px)}.download-status{color:var(--flight-blue);font:12px monospace;letter-spacing:1px;text-transform:uppercase}.download-copy h2{margin:14px 0 12px;font-size:31px;line-height:1.2}.download-copy>p{max-width:520px;color:var(--muted);font-size:17px;line-height:1.65}.download-facts{display:grid;grid-template-columns:1fr 1fr;gap:17px 24px;margin:27px 0 30px;padding:17px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.download-facts>div{display:flex;flex-direction:column;gap:5px}.download-facts>div:first-child{grid-column:1/-1}.download-facts dt{color:var(--muted);font:11px monospace;letter-spacing:1px;text-transform:uppercase}.download-facts dd{margin:0;color:var(--ink);font-size:15px;font-weight:650}.download-button{display:inline-flex;align-items:center;justify-content:space-between;gap:30px;min-width:210px;padding:13px 17px;background:#245d99;color:white;font-size:16px;font-weight:700}.download-button:hover{background:#1a4775;color:white}.download-button span{font-size:20px}.read-online-link{display:block;width:max-content;margin-top:15px;color:var(--flight-blue);font-size:15px;font-weight:650}
@media(max-width:760px){.download-page{padding:39px 20px 58px}.download-page>h1{font-size:clamp(40px,9vw,56px)}.download-card{grid-template-columns:1fr}.download-cover{min-height:245px;padding:24px}.download-copy{padding:24px 20px}.download-copy h2{font-size:26px}.download-copy>p{font-size:16px}.download-facts{gap:14px 18px}.download-facts dd{font-size:14px}}

.freeware-section{max-width:980px;margin:68px 0 0}
.freeware-heading{display:flex;align-items:baseline;justify-content:space-between;gap:18px;margin-bottom:20px;border-bottom:1px solid var(--line);padding-bottom:14px}
.freeware-heading h2{margin:0;font-size:32px;line-height:1.2;color:var(--ink)}
.freeware-heading>a,.freeware-card>a{color:var(--flight-blue);font-weight:650}
.freeware-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.freeware-card{min-height:154px;padding:16px;background:var(--surface);border:1px solid var(--line);display:grid;grid-template-columns:126px minmax(0,1fr);gap:17px;align-items:start}
.freeware-thumb{width:126px;height:100px;object-fit:cover;background:var(--soft);border:1px solid var(--line)}
.freeware-card-copy{min-width:0;display:flex;flex-direction:column;align-items:flex-start;height:100%}
.freeware-type{font:11px/1.4 monospace;letter-spacing:1px;text-transform:uppercase;color:var(--muted)}
.freeware-card h3{margin:7px 0 6px;color:var(--ink);font-size:20px;line-height:1.23}
.freeware-card p{margin:0 0 12px;color:var(--muted);font-size:15px;line-height:1.45}
.freeware-card-copy>a{margin-top:auto;font-size:15px}
@media(max-width:760px){.freeware-section{margin-top:48px}.freeware-heading{align-items:flex-start;flex-direction:column;gap:7px}.freeware-heading h2{font-size:28px}.freeware-grid{grid-template-columns:1fr}.freeware-card{grid-template-columns:104px minmax(0,1fr);gap:13px;min-height:0;padding:14px}.freeware-thumb{width:104px;height:82px}.freeware-card h3{font-size:19px}}

.brand{font-size:31px;letter-spacing:1.5px}
@media(max-width:760px){.masthead{gap:10px}.brand{font-size:24px;letter-spacing:1.2px}.brand small{font-size:8px;letter-spacing:2.8px}}
@media(max-width:420px){.theme-mode{display:none}}

.sidebar-stack{display:flex;flex:1;flex-direction:column;min-width:0;min-height:0}
.sidebar-stack .sidebar-scrollport{min-height:0}
.other-guides{flex:none;padding:12px 19px 13px 27px;border-top:1px solid var(--line);background:var(--paper)}
.other-guides-title{margin-bottom:9px;color:var(--muted);font-size:14px;font-weight:700}
.other-guides a{display:flex;align-items:center;gap:11px;min-height:42px;padding:5px 7px;color:var(--ink);font-size:16px;font-weight:600;border-radius:3px}
.other-guides a:hover,.other-guides a:focus-visible{background:var(--soft)}
.other-guides img{width:24px;height:24px;flex:none;border-radius:5px}
@media(max-width:760px){.other-guides{padding:11px 16px 12px 18px}}