:root{--bg:#0f1218;--card:#181c25;--card2:#1f2430;--line:#262b36;--fg:#e8eaf0;--mut:#9aa3b5;--acc:#5aa9ff;--acc-fg:#08111c;--radius:10px}
*{box-sizing:border-box}
[hidden]{display:none !important}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.5 -apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}
a{color:var(--acc);text-decoration:none}a:hover{text-decoration:underline}
img{max-width:100%;height:auto}
.wrap{max-width:1280px;margin:0 auto;padding:0 16px}
.small{font-size:12px;color:var(--mut)}
h1{font-size:26px;line-height:1.25;margin:0 0 8px}h2{font-size:18px;margin:0 0 10px}
.btn{display:inline-block;background:var(--card2);color:var(--fg);border:1px solid var(--line);padding:8px 14px;border-radius:8px;font-weight:600;font-size:14px;line-height:1.2;cursor:pointer}
.btn:hover{text-decoration:none;border-color:var(--acc)}
.btn-primary{background:var(--acc);color:var(--acc-fg);border-color:var(--acc)}.btn-primary:hover{filter:brightness(1.08)}
.btn-small{padding:5px 10px;font-size:13px}.btn-large{padding:12px 20px;font-size:16px}
/* header */
.site-header{border-bottom:1px solid var(--line);background:#0c0f14;position:sticky;top:0;z-index:10}
.site-header .wrap{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding-top:12px;padding-bottom:12px}
.brand{font-weight:800;font-size:17px;color:var(--fg);letter-spacing:.2px}.brand:hover{text-decoration:none}
.sw-nav{display:flex;flex-wrap:wrap;gap:6px}
.sw-nav a{background:var(--line);color:var(--fg);padding:6px 12px;border-radius:6px;font-size:14px}
.sw-nav a.on{background:var(--acc);color:var(--acc-fg)}.sw-nav a:hover{text-decoration:none;filter:brightness(1.15)}
/* page head */
.page-head,.hero{padding:22px 0 8px}.intro{color:var(--mut);max-width:820px;margin:0 0 8px}.count{margin:0 0 12px;color:var(--mut)}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 12px}
.chip{background:var(--card);border:1px solid var(--line);color:var(--fg);padding:4px 10px;border-radius:999px;font-size:13px}
.chip span{color:var(--mut);font-size:12px}.chip.on{border-color:var(--acc);color:var(--acc)}.chip:hover{text-decoration:none;border-color:var(--acc)}
.filterbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:4px 0 14px}
.filterbar input,.filterbar select{background:var(--card);color:var(--fg);border:1px solid var(--line);border-radius:8px;padding:7px 10px;font-size:14px}
.filterbar input{min-width:220px}.facets{display:flex;flex-wrap:wrap;gap:6px}
.facets button{background:var(--card);border:1px solid var(--line);color:var(--mut);border-radius:999px;padding:3px 9px;font-size:12px;cursor:pointer}
.facets button.on{border-color:var(--acc);color:var(--acc)}
/* grid & cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;grid-auto-rows:1fr;padding:4px 0 24px}
.card{background:var(--card);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;height:100%;border:1px solid transparent}
.card:hover{border-color:var(--line)}
.card-media{display:block;aspect-ratio:16/9;background:#0c0f14}.card-media img{width:100%;height:100%;object-fit:cover;display:block}
.noimg{aspect-ratio:16/9;display:grid;place-items:center;color:var(--mut);font-size:13px}
.card-body{padding:12px 14px 14px;display:flex;flex-direction:column;gap:6px;flex:1}
.card-meta{font-size:12px;color:var(--mut)}.card-meta .sw{color:var(--fg);font-weight:600}
.card-title{font-size:15px;line-height:1.3;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.6em}
.card-title a{color:var(--fg)}
.card-excerpt{margin:0;color:#c9cfdb;font-size:13px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;min-height:4.35em}
.card-tags{display:flex;flex-wrap:wrap;gap:4px;overflow:hidden;max-height:1.9em}
.tag{display:inline-block;background:var(--line);color:var(--mut);font-size:11px;padding:2px 8px;border-radius:999px;white-space:nowrap}
.card-btn{margin-top:auto;align-self:flex-start}
/* ad slots: visually distinct from cards and buttons */
.ad-slot{grid-column:1/-1;border:1px dashed #3a4150;background:#12151c;border-radius:4px;min-height:90px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#5c6577;font-size:12px;margin:4px 0}
.ad-slot--detail-mid{min-height:120px;margin:16px 0}.ad-slot--home-mid{margin:0 0 24px}
.ad-label{text-transform:uppercase;letter-spacing:.08em;font-size:10px}
/* pagination / breadcrumbs */
.pagination{display:flex;align-items:center;justify-content:center;gap:12px;padding:8px 0 32px;color:var(--mut)}
.breadcrumbs{font-size:13px;color:var(--mut);padding:14px 0 0}.breadcrumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.breadcrumbs li+li::before{content:"›";margin-right:6px;color:#5c6577}
/* home */
.home-section{padding:8px 0 16px}.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:4px}
.section-head h2{font-size:20px;margin:0}.section-head h2 a{color:var(--fg)}
/* project detail */
.project{padding:8px 0 24px}.project-head{margin:8px 0 14px}.project-head h1{font-size:28px}.orig-title{color:var(--mut);margin:0;font-size:14px}
.preview{margin:0 0 20px;background:var(--card);border-radius:var(--radius);overflow:hidden}.preview img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover}.preview figcaption{padding:6px 12px}
.project-cols{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px}
@media (max-width:860px){.project-cols{grid-template-columns:1fr}}
.overview p{color:#d3d8e2;font-size:16px;line-height:1.65}
.learn ul{margin:0;padding-left:20px}.learn li{margin:4px 0}
.actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:18px 0 8px}.actions .access{width:100%;margin:2px 0 0}
.details{margin:0;background:var(--card);border-radius:var(--radius);padding:8px 14px}
.details .field{display:grid;grid-template-columns:110px 1fr;gap:8px;padding:8px 0;border-bottom:1px solid var(--line)}
.details .field:last-child{border-bottom:0}.details dt{color:var(--mut);font-size:13px}.details dd{margin:0;font-size:14px;word-break:break-word}
.project-side .card-tags{margin-top:12px;max-height:none}
.project-foot{border-top:1px solid var(--line);margin-top:20px;padding-top:12px}
.related{padding:8px 0 24px}
/* static pages */
.static-page{max-width:820px;padding:16px 0 32px}.static-page p,.static-page li{color:#d3d8e2;line-height:1.65}
/* footer */
.site-footer{border-top:1px solid var(--line);margin-top:24px;padding:20px 0 28px;color:var(--mut);font-size:14px}
.site-footer nav a{color:var(--fg)}
/* group navigation (no JS required) */
.group-nav{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.group-nav .nav-all{background:var(--line);color:var(--fg);padding:6px 12px;border-radius:6px;font-size:14px}.group-nav .nav-all.on{background:var(--acc);color:var(--acc-fg)}
.group-menu{position:relative}.group-menu summary{list-style:none;cursor:pointer;background:var(--line);color:var(--fg);padding:6px 12px;border-radius:6px;font-size:14px;user-select:none}
.group-menu summary::-webkit-details-marker{display:none}.group-menu summary::after{content:" ▾";font-size:11px;color:var(--mut)}
.group-menu.on summary{background:var(--acc);color:var(--acc-fg)}.group-menu.on summary::after{color:var(--acc-fg)}
.group-menu[open] summary{background:var(--card2);color:var(--fg)}
.menu-panel{position:absolute;top:calc(100% + 6px);left:0;min-width:230px;background:#141821;border:1px solid var(--line);border-radius:10px;padding:8px;display:flex;flex-direction:column;gap:2px;z-index:20;box-shadow:0 12px 32px rgba(0,0,0,.45)}
.menu-panel a{color:var(--fg);padding:7px 10px;border-radius:6px;font-size:14px;display:flex;justify-content:space-between;gap:12px}.menu-panel a:hover{background:var(--line);text-decoration:none}
.menu-panel a.on{color:var(--acc)}.menu-panel .n{color:var(--mut);font-size:12px}
.menu-panel .view-all{margin-top:4px;border-top:1px solid var(--line);padding-top:9px;color:var(--acc);font-weight:600}
@media (max-width:720px){.menu-panel{position:static;box-shadow:none;margin-top:6px}.group-nav{align-items:flex-start}.group-nav details[open]{flex-basis:100%}}
/* group landing */
.sw-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px;padding:4px 0 8px}
.sw-card{display:flex;flex-direction:column;gap:4px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;color:var(--fg)}
.sw-card:hover{text-decoration:none;border-color:var(--acc)}.sw-name{font-weight:700;font-size:16px}.sw-count{color:var(--acc);font-size:13px}.sw-intro{color:var(--mut);font-size:13px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.ad-slot--group-mid{margin:8px 0 16px}