/* Shared compact directory; deliberately distinct from .module-card. */
.engineering-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.engineering-card{position:relative;display:block;min-width:0;padding:18px;background:#fff;border:1px solid #dce3eb;border-radius:8px;color:#152231;text-decoration:none;transition:border-color .18s,box-shadow .18s}
.engineering-card:before{display:none}
.engineering-card:hover{border-color:var(--accent,#2868d8);box-shadow:0 4px 14px #183c5b08}
.engineering-card:focus-visible{outline:3px solid #2868f0;outline-offset:3px}
.engineering-top{display:flex;align-items:center;gap:12px;margin-bottom:10px;padding-right:16px}
.engineering-top>div{min-width:0;display:flex;flex-direction:column-reverse;gap:5px}
.engineering-icon{display:flex;align-items:center;justify-content:center;background:var(--icon-tint,#edf3ff);border-radius:9px;width:40px;height:40px;flex-shrink:0;color:var(--accent,#2868d8)}
.engineering-icon:before{content:'';width:23px;height:23px;background:currentColor;mask:var(--tool-icon) center/contain no-repeat;-webkit-mask:var(--tool-icon) center/contain no-repeat}
.engineering-icon svg{width:25px;height:25px;stroke:currentColor;stroke-width:1.6;fill:none}
.engineering-icon:has(svg):before{display:none}
.engineering-card h3{font-size:15px;line-height:1.5;margin:0;font-weight:700;overflow-wrap:anywhere}
.engineering-card small{font:11px/1.4 'Segoe UI','Microsoft YaHei',sans-serif;letter-spacing:.02em;color:var(--accent,#586c83)}
.engineering-card p{font-size:12px;line-height:1.75;color:#607084;margin:0 0 0 52px;overflow-wrap:anywhere}
.engineering-card-footer{position:absolute;right:16px;top:19px;color:#8593a4;font:18px/1 sans-serif;transition:color .18s}
.engineering-card:hover .engineering-card-footer{color:#2868d8}
.engineering-card[hidden]{display:none!important}
.engineering-directory-controls{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 0 14px;border-bottom:1px solid #dce3eb;flex-wrap:wrap}
.engineering-categories{display:flex;flex-wrap:wrap;gap:6px}
.engineering-category{display:flex;align-items:center;gap:7px;min-height:36px;padding:7px 11px;border:1px solid transparent;border-radius:6px;background:transparent;color:#526479;font:500 12px/1.5 'Segoe UI','Microsoft YaHei',sans-serif;cursor:pointer}
.engineering-category:before{content:'';width:5px;height:5px;border-radius:50%;background:var(--category-color,#526479);flex-shrink:0}
.engineering-category[aria-pressed=true]{background:#fff;border-color:#cedbee;color:#1e4c9a;box-shadow:0 2px 5px #183c5b05}
.engineering-category:hover{background:#fff}
.engineering-category-count{font-size:10px;color:#758399;font-variant-numeric:tabular-nums}
.engineering-search{box-sizing:border-box;min-width:180px;width:220px;max-width:100%;height:36px;border:1px solid #d6dee7;border-radius:6px;background:#fff;padding:0 12px;color:#152231;font:12px 'Segoe UI','Microsoft YaHei',sans-serif}
.engineering-category:focus-visible,.engineering-search:focus-visible,.engineering-empty button:focus-visible{outline:2px solid #2868f0;outline-offset:3px}
.engineering-directory-summary{margin:12px 0;font:11px/1.5 'Segoe UI','Microsoft YaHei',sans-serif;color:#667587}
.engineering-empty{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:24px;border:1px dashed #cbd7e4;background:#fff;font-size:13px;color:#607084;border-radius:8px;margin-top:14px;flex-wrap:wrap}
.engineering-empty button{border:1px solid #cedbee;background:#edf3ff;color:#245cb4;padding:8px 12px;border-radius:5px;cursor:pointer}
.engineering-empty[hidden]{display:none!important}
@media(max-width:1250px){.engineering-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:1000px){.engineering-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.engineering-search{flex:1}}
@media(max-width:600px){.engineering-grid{grid-template-columns:1fr;gap:10px}.engineering-card{padding:16px}.engineering-card p{margin-left:52px}.engineering-directory-controls{gap:10px}.engineering-category{padding:6px 8px}.engineering-search{width:100%;flex-basis:100%}}
@media(prefers-reduced-motion:reduce){.engineering-card,.engineering-card-footer{transition:none}}