.guide-site { --paper:#f4f5f1; --ink:#152126; --quiet:#59656a; --rule:#d9deda; background:var(--paper); color:var(--ink); }
.guide-site .site-header,.guide-site .footer { color:var(--text); }
.guide-site [hidden] { display:none !important; }
.guide-site a { text-underline-offset:4px; }
.guide-site :focus-visible { outline:3px solid #078bb9; outline-offset:5px; }
.skip-link { position:fixed; top:8px; left:16px; z-index:100; padding:12px 20px; background:#fff; color:#152126; transform:translateY(-160%); }
.skip-link:focus { transform:translateY(0); }
.visually-hidden { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }
.library-hero { background:#0b1417; color:#f5f8f7; overflow:hidden; }
.library-hero-grid { display:grid; grid-template-columns:1.15fr 1fr; align-items:center; gap:60px; padding-block:78px 50px; }
.library-label { display:flex; align-items:center; gap:10px; font:650 11px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace; letter-spacing:.14em; color:#a8b8be; }
.status-dot { width:6px; height:6px; background:#6ee1dc; border-radius:50%; }
.library-hero h1 { font-size:clamp(3.7rem,7.2vw,6.4rem); line-height:1.02; font-weight:650; letter-spacing:-.065em; margin:25px 0; }
.library-hero h1 em { color:#63d4dc; font-style:normal; }
.library-hero p { font-size:17px; color:#b5c1c5; line-height:1.8; }
.library-explore { display:inline-flex; align-items:center; gap:52px; margin-top:26px; padding-bottom:10px; border-bottom:1px solid #5d7076; color:#fff !important; text-decoration:none; font-size:14px; }
.library-explore span { font-size:22px; color:#7cdee1; }
.hero-drawing { position:relative; background:radial-gradient(ellipse at center,#12383c70,transparent 68%); color:#74d6db; }
.hero-drawing::before { content:''; position:absolute; inset:12%; border:1px solid #274249; border-radius:50%; }
.hero-drawing svg { position:relative; width:100%; display:block; transform:rotate(-12deg); }
.drawing-note { display:flex; justify-content:space-between; margin-top:15px; color:#92aaaF; font:10px/1.5 ui-monospace,monospace; letter-spacing:.08em; }
.library-hero-bottom { display:flex; justify-content:space-between; gap:20px; padding-block:22px; border-top:1px solid #26343b; color:#9fadb2; font:12px/1.5 ui-monospace,monospace; }
.library-hero-bottom span:last-child span { margin-left:20px; color:#83dee0; }
.library-section { padding:78px 0 65px; }
.library-heading { display:flex; justify-content:space-between; align-items:end; gap:30px; margin-bottom:32px; }
.guide-eyebrow { font:650 10px/1.6 ui-monospace,monospace; letter-spacing:.15em; color:#567077; }
.library-heading h2 { margin:10px 0 0; font-size:clamp(2rem,4vw,3rem); font-weight:600; letter-spacing:-.055em; line-height:1.1; }
.library-heading p { margin:0; color:var(--quiet); font-size:14px; }
.library-tools { display:flex; align-items:center; justify-content:space-between; gap:24px; border-block:1px solid var(--rule); padding:18px 0; margin-bottom:35px; }
.guide-filters { display:flex; flex-wrap:wrap; gap:7px; }
.guide-filters button { border:1px solid transparent; color:var(--quiet); background:transparent; border-radius:6px; padding:9px 13px; font:600 13px/1.5 system-ui,sans-serif; cursor:pointer; min-height:44px; }
.guide-filters button span { font-size:10px; margin-left:6px; opacity:.75; }
.guide-filters button:hover { background:#e7ebe7; }
.guide-filters button.is-active { background:#162b31; color:#fff; }
.guide-search { display:flex; align-items:center; gap:9px; padding:10px 12px; border:1px solid #ccd4cf; border-radius:6px; background:#fff9; color:#60757c; }
.guide-search > span:first-child { font:25px/1 system-ui; }
.guide-search input { width:190px; background:transparent; border:0; font:13px/1.5 system-ui,sans-serif; color:var(--ink); }
.guide-search:focus-within { outline:2px solid #078bb9; outline-offset:2px; }
.guide-search input:focus-visible { outline:0; }
.library-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:25px; }
.guide-card { min-width:0; border:1px solid var(--rule); border-radius:10px; overflow:hidden; background:#fff; transition:transform .2s,border-color .2s; }
.guide-card:hover { transform:translateY(-4px); border-color:#8da8ae; }
.guide-card-art { position:relative; display:block; height:240px; padding:22px; color:#347e8b !important; background:#e4efef; text-decoration:none; overflow:hidden; }
.guide-card-art svg { display:block; height:100%; width:100%; }
.art-label { position:absolute; top:20px; left:22px; font:9px/1.5 ui-monospace,monospace; letter-spacing:.16em; opacity:.75; }
.art-model { position:absolute; bottom:18px; left:22px; font:600 12px/1.5 ui-monospace,monospace; letter-spacing:-.03em; }
.art-number { position:absolute; bottom:18px; right:22px; font:10px/1.5 ui-monospace,monospace; opacity:.7; }
.tone-mint { background:#e5ede3; color:#5b7965 !important; }
.tone-blue { background:#e5ebf1; color:#637f96 !important; }
.tone-sand { background:#f0e9dd; color:#9a8162 !important; }
.tone-lilac { background:#ebe8f0; color:#827198 !important; }
.guide-card-copy { padding:25px; }
.guide-meta { display:flex; justify-content:space-between; gap:10px; align-items:center; color:#62767c; font:10px/1.6 ui-monospace,monospace; }
.guide-card h3 { margin:17px 0 12px; font-size:23px; font-weight:650; line-height:1.25; letter-spacing:-.04em; }
.guide-card h3 a { display:flex; align-items:start; justify-content:space-between; gap:18px; text-decoration:none; color:var(--ink); }
.guide-card h3 a span { color:#698089; font-size:20px; font-weight:400; }
.guide-card h3 a:hover { color:#047799; }
.guide-card p { color:var(--quiet); margin:0 0 24px; font-size:14px; line-height:1.7; }
.guide-tag { display:inline-block; padding:5px 9px; border:1px solid #e4e8e4; border-radius:4px; font:10px/1.5 ui-monospace,monospace; color:#5b6e75; }
.guide-featured { grid-column:span 2; display:grid; grid-template-columns:.85fr 1.15fr; align-items:center; background:#11282d; color:#f6f9f7; border-radius:10px; padding:25px; gap:15px; }
.featured-art { display:block; color:#7dd5d2 !important; text-decoration:none; }
.featured-art svg { display:block; width:100%; }
.featured-art > span { display:block; font:9px/1.5 ui-monospace,monospace; letter-spacing:.14em; text-align:center; color:#7faaaa; }
.featured-copy { padding:12px 13px 12px 0; }
.guide-featured .guide-meta { color:#91b6bc; font-size:9px; }
.guide-featured h3 { margin:22px 0 18px; font-size:clamp(1.8rem,3vw,2.4rem); line-height:1.1; font-weight:550; letter-spacing:-.05em; }
.guide-featured h3 a { color:#fff; text-decoration:none; }
.guide-featured p { font-size:14px; color:#abc4c8; line-height:1.75; }
.featured-link { display:inline-flex; justify-content:space-between; align-items:center; gap:24px; margin-top:15px; padding-bottom:8px; border-bottom:1px solid #52787e; color:#bcefee !important; text-decoration:none; font-size:13px; }
.library-note { padding-top:32px; color:var(--quiet); font-size:12px; }
.guide-empty { text-align:center; padding:80px 25px; border:1px dashed #b8c9c4; border-radius:10px; }
.guide-empty p { color:var(--quiet); }
.guide-project { padding-block:65px; background:#e4eae4; border-block:1px solid #d2dcd3; }
.guide-project > .wrap { display:flex; align-items:center; justify-content:space-between; gap:30px; }
.guide-project .library-label { color:#587379; }
.guide-project h2 { margin:14px 0; font-size:clamp(2rem,4vw,3.1rem); font-weight:600; letter-spacing:-.055em; }
.guide-project p { max-width:570px; font-size:15px; color:#52696e; }
.guide-project .button { gap:22px; background:#122d34; color:#fff !important; border-radius:6px; font-size:13px; font-weight:600; }
.reading-progress { position:fixed; top:76px; inset-inline:0; z-index:31; height:3px; pointer-events:none; }
.reading-progress span { display:block; width:100%; height:100%; transform:scaleX(0); transform-origin:left; background:#09a8e2; }
.article-hero { padding:38px 0 56px; border-bottom:1px solid var(--rule); background:#edf0eb; }
.guide-breadcrumb { display:flex; flex-wrap:wrap; gap:12px; margin-bottom:42px; color:#6e7e82; font-size:12px; }
.guide-breadcrumb a { color:#526c72; text-decoration:none; }
.article-hero .guide-eyebrow span { margin-inline:10px; }
.article-hero h1 { max-width:960px; margin:20px 0; font-size:clamp(2.3rem,4.7vw,4.6rem); font-weight:600; line-height:1.08; letter-spacing:-.055em; }
.article-hero p { max-width:760px; color:#52666b; font-size:17px; line-height:1.8; }
.article-back { display:inline-block; margin-top:10px; font-size:12px; color:#526c72 !important; text-decoration:none; }
.reading-layout { display:grid; grid-template-columns:245px minmax(0,1fr); gap:78px; padding-block:60px 80px; align-items:start; }
.reading-sidebar { position:sticky; top:108px; }
.reading-toc summary { display:flex; align-items:center; justify-content:space-between; cursor:pointer; list-style:none; font-size:13px; font-weight:650; padding-bottom:18px; border-bottom:1px solid var(--rule); }
.reading-toc summary::-webkit-details-marker { display:none; }
.reading-toc nav { display:grid; padding-block:13px; }
.reading-toc a { display:flex; align-items:baseline; gap:12px; padding:9px 10px 9px 0; color:#607279; font-size:12px; text-decoration:none; border-right:2px solid transparent; }
.reading-toc a span { min-width:18px; color:#91a1a6; font:10px/1.5 ui-monospace,monospace; }
.reading-toc a:hover,.reading-toc a.is-current { color:#036c88; border-right-color:#09a8e2; }
.reading-help { margin-top:30px; padding:22px; background:#e8eeea; border:1px solid #dce3dd; border-radius:8px; }
.reading-help h2 { margin:12px 0; font-size:18px; font-weight:650; letter-spacing:-.03em; }
.reading-help p { color:#5b7177; font-size:12px; }
.reading-help a { color:#135563; font-size:12px; font-weight:650; text-decoration:none; }
.reading-body { min-width:0; color:#374a51; font-size:16px; line-height:1.85; }
.reading-body h2 { margin:52px 0 20px; color:#142d35; font-size:28px; line-height:1.2; font-weight:650; letter-spacing:-.04em; padding:0 0 16px; border-bottom:1px solid var(--rule); scroll-margin-top:108px; }
.reading-body h3 { margin:28px 0 12px; color:#193c45; font-size:20px; line-height:1.3; font-weight:650; letter-spacing:-.025em; }
.reading-body p { margin:0 0 18px; }
.reading-body a { color:#006b87; overflow-wrap:anywhere; }
.reading-body ul,.reading-body ol { padding-left:22px; }
.reading-body li { padding-left:5px; margin-block:8px; }
.reading-body .panel { padding:22px 25px; background:#fff; border:1px solid #dde4df; border-radius:8px; margin-block:22px; }
.reading-body > .panel:first-child { margin-top:0; display:flex; flex-wrap:wrap; gap:8px; padding:16px 20px; background:#e5edeb; border:0; }
.reading-body .badge { display:inline-block; padding:5px 10px; font:11px/1.5 ui-monospace,monospace; color:#1b5260; background:#eaf2f1; border:1px solid #d1e1de; border-radius:4px; margin:0; }
.reading-body blockquote { margin:20px 0; padding:18px 22px; border-left:3px solid #399dad; background:#e9f0ed; font-size:15px; }
.guide-table { max-width:100%; overflow-x:auto; margin:26px 0; border:1px solid #d4ded8; border-radius:8px; background:white; }
.reading-body table { width:100%; min-width:580px; border-collapse:collapse; margin:0; font-size:13px; line-height:1.65; }
.reading-body th { color:#fff; background:#18343d; font-weight:600; text-align:left; padding:14px 18px; }
.reading-body td { padding:14px 18px; border-bottom:1px solid #e2e9e4; vertical-align:top; }
.reading-body tr:nth-child(even) td { background:#f1f5f1; }
.reading-body tr:last-child td { border-bottom:0; }
.reading-body .ok { color:#16704e; }.reading-body .warn { color:#885c15; }.reading-body .x { color:#8f3a3a; }
.reading-body > footer { display:flex; flex-wrap:wrap; align-items:center; gap:12px; padding:25px 0; border-block:1px solid var(--rule); font-size:12px; }
.reading-body .btn { padding:8px 12px; background:#193e47; color:white; text-decoration:none; border-radius:4px; }
.article-context-note { margin-top:32px; padding:20px; background:#e7eeea; border-radius:8px; font-size:12px; line-height:1.8; color:#526c72; }
.article-context-note p { margin:6px 0 0; }
.related-guides { padding:65px 0; border-top:1px solid var(--rule); background:#ecf0eb; }
.related-guides .library-heading { display:block; }
.related-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:24px; }
@media(max-width:1100px) { .library-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }.guide-featured { grid-column:span 2; }.reading-layout { gap:40px; grid-template-columns:210px minmax(0,1fr); } }
@media(max-width:760px) { .library-hero-grid { grid-template-columns:1fr; padding-block:50px 30px; gap:25px; }.library-hero h1 { font-size:clamp(3.5rem,11vw,5rem); }.hero-drawing { display:none; }.library-hero-bottom { font-size:10px; }.library-heading { align-items:start; }.library-heading > p { display:none; }.library-section { padding-top:45px; }.library-tools { flex-wrap:wrap; gap:15px; }.guide-search { width:100%; }.guide-search input { width:100%; min-width:0; }.guide-filters { width:100%; gap:4px; }.guide-filters button { padding-inline:9px; font-size:12px; }.guide-filters button span { margin-left:3px; }.library-grid,.related-grid { grid-template-columns:repeat(2,minmax(0,1fr)); gap:16px; }.guide-card-art { height:190px; }.guide-card-copy { padding:20px; }.guide-card h3 { font-size:21px; }.guide-card .guide-meta { font-size:9px; }.guide-featured { padding:20px; }.guide-project > .wrap { align-items:start; flex-direction:column; gap:20px; }.reading-layout { grid-template-columns:1fr; gap:30px; padding-block:28px 50px; }.reading-sidebar { position:static; }.reading-help { display:none; }.reading-toc { padding:16px; background:#e8eeea; border:1px solid #d6e0d9; border-radius:6px; }.reading-toc summary { padding-bottom:10px; }.reading-toc:not([open]) summary { border:0; padding:0; }.reading-toc nav { grid-template-columns:1fr 1fr; column-gap:20px; }.article-hero { padding-bottom:34px; }.guide-breadcrumb { margin-bottom:26px; }.article-hero p { font-size:15px; }.reading-body { font-size:15px; }.reading-body .panel { padding:20px; }.reading-body h2 { font-size:25px; }.related-guides { padding:45px 0; } }
@media(max-width:500px) { .library-grid,.related-grid { grid-template-columns:1fr; }.guide-featured { grid-column:auto; grid-template-columns:1fr; gap:5px; }.featured-art { display:none; }.featured-copy { padding:8px; }.guide-featured h3 { font-size:34px; }.guide-featured h3 br { display:none; }.guide-card-art { height:235px; }.guide-card .guide-meta { font-size:10px; }.guide-card h3 { font-size:24px; }.reading-toc nav { grid-template-columns:1fr; }.reading-body .panel { padding:18px; }.library-hero p { font-size:15px; }.library-hero-bottom { align-items:start; }.library-hero-bottom span:last-child { text-align:right; }.desktop-break { display:none; } }
@media(prefers-reduced-motion:reduce) { .guide-card { transition:none; }.guide-card:hover { transform:none; } }