:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#172033;background:#f6f8fb}*{box-sizing:border-box}body{margin:0}.top{height:64px;background:#fff;border-bottom:1px solid #e5eaf0;display:flex;align-items:center;padding:0 5vw;position:sticky;top:0;z-index:10}.brand{font-weight:800;color:#121a2b;text-decoration:none;font-size:20px}.hero{padding:70px 5vw 42px;background:#101827;color:white}.hero h1{font-size:clamp(36px,6vw,72px);margin:0 0 14px;line-height:1}.hero p{max-width:720px;color:#c9d2e3;font-size:18px}.search{max-width:760px;display:flex;gap:8px;margin-top:28px}.search input,.field input,.field select,.field textarea{width:100%;padding:13px 14px;border:1px solid #ccd5e0;border-radius:10px;background:#fff;font:inherit}.page{max-width:1180px;margin:0 auto;padding:34px 24px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}.card{background:#fff;border:1px solid #e3e8ef;border-radius:14px;padding:18px;box-shadow:0 5px 20px rgba(30,45,70,.04)}.card a{text-decoration:none;color:inherit}.thumb{aspect-ratio:16/10;background:#eef2f7;border-radius:10px;display:flex;align-items:center;justify-content:center;overflow:hidden;margin-bottom:14px}.thumb img,.preview img{width:100%;height:100%;object-fit:contain}.muted{color:#6a7485}.meta{font-size:13px;color:#6d7685}.button{display:block;text-align:center;border:0;background:#2563eb;color:white!important;padding:12px 15px;border-radius:10px;text-decoration:none;cursor:pointer;font-weight:700;margin-top:10px}.button.secondary{background:#eef2ff;color:#263c8b!important}.button.danger{background:#a91d2f}.detail-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(280px,1fr);gap:24px;align-items:start}.preview{background:#fff;border:1px solid #e0e6ee;border-radius:16px;min-height:480px;display:flex;align-items:center;justify-content:center;overflow:hidden}.empty-preview{color:#8a94a3}.lead{font-size:18px;color:#566073;max-width:850px}.card dl{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:0}.card dt{color:#738096}.card dd{margin:0;text-align:right;font-weight:700}.admin-layout{display:grid;grid-template-columns:230px 1fr;min-height:100vh}.sidebar{background:#111827;color:#d7dfeb;padding:24px}.sidebar h2{color:#fff}.main{padding:28px;background:#f7f9fc}.panel{background:#fff;border:1px solid #e3e8ef;border-radius:14px;padding:20px;margin-bottom:20px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field label{display:block;font-weight:700;margin-bottom:6px;font-size:14px}.field.full{grid-column:1/-1}.toolbar{display:flex;gap:8px;flex-wrap:wrap}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;background:#fff}th,td{text-align:left;padding:12px;border-bottom:1px solid #e6ebf1;font-size:14px}.status{padding:4px 8px;border-radius:999px;background:#eef2f7;font-size:12px;font-weight:700}.viewer-shell{height:100vh;display:grid;grid-template-rows:58px 1fr;background:#171a20;color:#e7eaf0}.viewer-top{display:flex;align-items:center;justify-content:space-between;padding:0 18px;background:#20242c;border-bottom:1px solid #343a45}.viewer-canvas{display:flex;align-items:center;justify-content:center;padding:30px;text-align:center}.viewer-card{max-width:680px;background:#242933;border:1px solid #383f4b;padding:28px;border-radius:16px}.viewer-card p{color:#b5bdc9}@media(max-width:780px){.detail-grid,.admin-layout,.form-grid{grid-template-columns:1fr}.sidebar{display:none}.preview{min-height:300px}}
[hidden]{display:none!important}#summary{margin:20px 0}.search input{min-width:0}.search .button{flex-shrink:0}
.dwg-ad{margin:48px 0;padding:16px 0;border-top:1px solid #e3e8ef;min-width:0}.ad-label{text-align:center;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#6a7485;margin-bottom:12px}.ad-space{min-width:0;min-height:100px}.dwg-ad-horizontal .ad-space{min-height:120px}.dwg-ad-vertical{margin-top:0}.dwg-ad-vertical .ad-space{min-height:300px}.ad-preview .ad-space{display:flex;align-items:center;justify-content:center;background:#eef2f7;border:1px dashed #b5c0d0;color:#738096;font-size:13px}.article-ad-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;margin-top:48px}.article-ad-side{min-width:0}.dwg-ad-square{display:none}@media(max-width:900px){.article-ad-layout{display:block}.article-ad-side{display:none}.dwg-ad-square{display:block;max-width:336px;margin:48px auto}.dwg-ad-square .ad-space{min-height:250px}}

.detail-grid{grid-template-columns:minmax(0,1fr)}.article-ad-side .card{margin-top:48px}@media(max-width:900px){.article-ad-side{display:block}.article-ad-side .dwg-ad-vertical{display:none}}

#related-drawings{margin-top:56px;padding-top:24px;border-top:1px solid #e3e8ef}#related-drawings h3{overflow-wrap:anywhere}

.post-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}.post-main,.post-sidebar{min-width:0}.post-main>section{margin-top:32px}.post-main .preview{min-height:0}.post-main .preview>a{display:block;width:100%}.post-main .preview img{display:block;width:100%;height:auto}.post-sidebar>.card{margin-top:48px}.post-sidebar>.card:first-child{margin-top:0}@media(max-width:900px){.post-layout{display:block}.post-sidebar .dwg-ad-vertical{display:none}}

/* Align header and hero content with the centered .page content. */
.top,.hero{padding-left:max(24px,calc((100% - 1132px)/2));padding-right:max(24px,calc((100% - 1132px)/2))}

.grid>.library-ad{display:block;width:100%;max-width:none;margin:0;padding:16px 10px;border:1px solid #e3e8ef;border-radius:14px;align-self:stretch}.library-ad .ad-space{min-height:250px}

.site-footer{margin-top:48px;background:#101827;color:#c9d2e3;border-top:1px solid #e3e8ef}.footer-inner{max-width:1180px;margin:auto;padding:32px 24px;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}.site-footer strong{color:white;font-size:20px}.site-footer p{font-size:14px}.site-footer nav{display:flex;gap:20px;flex-wrap:wrap;align-items:center}.site-footer a{color:#e5edff;text-underline-offset:4px}.privacy-page{max-width:900px;line-height:1.75}.privacy-page h2{margin-top:32px}.privacy-page a{overflow-wrap:anywhere}

#upload.upload-grid{gap:24px 28px;align-items:start}#upload .field{display:grid;grid-template-columns:145px minmax(0,1fr);gap:8px 12px;align-items:start;min-width:0}#upload .field>label{padding-top:12px;margin:0}#upload .field>input,#upload .field>select,#upload .field>textarea{min-width:0;width:100%}#upload .field>p,#upload .field>div{grid-column:2}#upload .upload-actions{display:block}#upload .upload-actions button{margin:0}@media(max-width:1100px){#upload.upload-grid{grid-template-columns:1fr}}@media(max-width:540px){#upload .field{grid-template-columns:1fr}#upload .field>p,#upload .field>div{grid-column:1}#upload .field>label{padding-top:0}}

.admin-layout{grid-template-columns:230px minmax(0,1fr)}.admin-layout>.main{min-width:0}.admin-nav{display:flex;flex-direction:column;gap:8px;margin-top:28px}.admin-nav a{display:block;padding:12px 14px;border-radius:8px;color:#d7dfeb;text-decoration:none;font-weight:600}.admin-nav a:hover{background:#243147}.admin-nav a[aria-current="page"]{background:#2563eb;color:#fff}.admin-nav a:focus-visible{outline:2px solid #93c5fd;outline-offset:2px}@media(max-width:780px){.admin-layout{grid-template-columns:1fr}.admin-layout>.sidebar{display:block;padding:18px}.admin-nav{flex-direction:row;flex-wrap:wrap;margin-top:14px}.admin-layout>.main{padding:18px}}

/* Upload workspace */
#upload-panel{max-width:1440px;margin:0 auto 24px;padding:32px;border-radius:20px;box-shadow:0 8px 32px #17203305}
.upload-heading{display:flex;justify-content:space-between;align-items:start;gap:20px;padding-bottom:28px;border-bottom:1px solid #edf0f5;margin-bottom:28px}.upload-eyebrow{font-size:11px;font-weight:800;letter-spacing:.13em;color:#2563eb}.upload-heading h1{font-size:30px;letter-spacing:-.7px;margin:8px 0}.upload-heading p,.upload-section-title p{color:#6a778c;font-size:14px;line-height:1.6;margin:4px 0 0}.draft-badge{white-space:nowrap;background:#eff6ff;color:#2563eb;font-size:12px;font-weight:650;padding:8px 12px;border-radius:999px}
#upload.upload-grid{gap:24px;grid-template-columns:repeat(2,minmax(0,1fr))}.upload-section-title{grid-column:1/-1;display:flex;align-items:center;gap:12px}.upload-section-title>span{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:#eff4ff;color:#2563eb;font-size:12px;font-weight:800;flex-shrink:0}.upload-section-title h2{font-size:17px;margin:0}.details-title{border-top:1px solid #edf0f5;padding-top:28px;margin-top:4px}
#upload .upload-file-card{padding:22px;background:#f8faff;border:1px dashed #c6d4ed;border-radius:14px;grid-template-columns:1fr;gap:12px;align-self:stretch}#upload .upload-file-card>div,#upload .upload-file-card>p{grid-column:1}#upload .upload-file-card>label{padding:0}#upload .file-card-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:#e7efff;color:#2563eb;font-size:12px;font-weight:800;letter-spacing:.04em}#upload .upload-file-card input{font-size:13px;padding:10px;background:white}#upload input::file-selector-button{border:0;background:#eaf0fc;color:#204b9b;border-radius:6px;padding:8px 12px;margin-right:10px;font-weight:600;cursor:pointer}#upload .upload-file-card .meta{margin:0;line-height:1.6}#upload .field input:focus-visible,#upload .field select:focus-visible,#upload .field textarea:focus-visible{outline:3px solid #2563eb25;border-color:#2563eb}#upload .field textarea{resize:vertical;min-height:110px}#upload .field label{color:#35445b;font-size:13px}#upload .upload-actions{display:flex;justify-content:space-between;align-items:center;gap:20px;background:#f8fafc;border-top:1px solid #edf0f5;border-radius:12px;padding:20px}#upload .upload-actions strong{font-size:14px}#upload .upload-actions p{font-size:13px;color:#6a778c;line-height:1.5;margin:6px 0 0}#upload .upload-actions button{padding:14px 24px;white-space:nowrap;box-shadow:0 4px 10px #2563eb20}#upload .upload-actions button span{margin-left:14px}#upload .button:hover{background:#1d4ed8}#upload .button:disabled{opacity:.6;cursor:wait}#uploadMsg:empty{display:none}#uploadMsg:not(:empty){padding:14px 18px;background:#eff6ff;border-radius:10px;font-size:14px;overflow-wrap:anywhere}
@media(max-width:1200px){#upload .field:not(.upload-file-card):not(.upload-actions){grid-template-columns:115px minmax(0,1fr)}}
@media(max-width:1000px){#upload.upload-grid{grid-template-columns:1fr}#upload-panel{padding:24px}}
@media(max-width:540px){#upload-panel{padding:18px;border-radius:14px}.upload-heading{flex-direction:column;gap:12px}.upload-heading h1{font-size:26px}#upload .field:not(.upload-file-card):not(.upload-actions){grid-template-columns:1fr}#upload .upload-actions{align-items:stretch;flex-direction:column}#upload .upload-file-card{padding:16px}}

#upload .upload-file-card{grid-column:1/-1}

.category-toolbar{display:flex;align-items:end;gap:12px;flex-wrap:wrap;margin-bottom:24px}.category-filter{display:flex;flex-direction:column;gap:7px;font-size:13px;font-weight:600;color:#526078}.category-filter select{font:inherit;min-width:220px;max-width:100%;padding:11px 14px;border:1px solid #ccd5e0;border-radius:9px;background:white;color:#172033}#files-panel>.toolbar{align-items:end;margin-bottom:20px}

/* Modern library pagination */
#browseNav,#pagination{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;margin:32px 0 8px;padding:20px 0;border-top:1px solid #e3e8ef}
#browseNav>a,#pagination>button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 20px;border:1px solid #dbe3ef;border-radius:12px;background:#fff;color:#2456ba!important;text-decoration:none;font:600 14px/1.4 Inter,ui-sans-serif,system-ui,sans-serif;box-shadow:0 2px 5px #17203306;margin:0;transition:background .15s,border-color .15s,box-shadow .15s}
#browseNav>a[rel=prev],#pagination>#previous{grid-column:1;grid-row:1;justify-self:start}
#browseNav>a[rel=next],#pagination>#next{grid-column:3;grid-row:1;justify-self:end;background:#2563eb;color:#fff!important;border-color:#2563eb}
#browseNav>span,#pagination>#pageLabel{grid-column:2;grid-row:1;margin:0;padding:8px 12px;border-radius:8px;background:#edf2fa;color:#526078;font-size:13px;font-weight:600;white-space:nowrap}
#browseNav>a:hover,#pagination>button:not(:disabled):hover{background:#eaf1ff;border-color:#9bb9ee;box-shadow:0 3px 10px #2563eb15}
#browseNav>a[rel=next]:hover,#pagination>#next:not(:disabled):hover{background:#1d4ed8;border-color:#1d4ed8}
#browseNav>a:focus-visible,#pagination>button:focus-visible{outline:3px solid #93c5fd;outline-offset:3px}
#pagination>button:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}
#browseNav:empty{display:none}
@media(max-width:540px){#browseNav,#pagination{gap:8px;padding-top:18px}#browseNav>a,#pagination>button{padding:10px 12px;font-size:13px}#browseNav>span,#pagination>#pageLabel{padding:6px;font-size:12px}}
@media(prefers-reduced-motion:reduce){#browseNav>a,#pagination>button{transition:none}}