/* Shared appearance for EGE/OGE material catalogs; task pages stay unchanged. */
body.material-catalog-page{background:#f4f7fb;color:#243449}
.material-catalog-page .page{box-sizing:border-box;width:100%;max-width:1280px;margin:0 auto;padding:0 24px clamp(72px,8vh,120px)}
.material-catalog-page .section-title{margin:28px 0 22px;padding:22px 24px;border:1px solid #dce6f0;border-radius:16px;background:#edf5ff;font-size:22px;font-weight:650;line-height:1.4;letter-spacing:0;color:#1e2936}
.material-catalog-page .grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:20px}
.material-catalog-page .card{min-width:0;padding:0;border:1px solid #dce6f0;border-radius:16px;background:#fff;box-shadow:0 4px 16px rgba(35,51,75,.035)}
.material-catalog-page .card h3{margin:0;padding:16px 20px;border-bottom:1px solid #dce6f0;border-radius:15px 15px 0 0;background:#edf5ff;color:#263b52;font-size:17px;font-weight:600;line-height:1.45;overflow-wrap:anywhere}
.material-catalog-page .links{display:flex;flex-direction:column;gap:2px;margin:0;padding:10px}
.material-catalog-page .text-link{display:flex;align-items:center;gap:10px;min-height:38px;box-sizing:border-box;padding:7px 10px;border-radius:8px;color:#42566d;font-size:15px;font-weight:400;line-height:1.45;text-decoration:none;overflow-wrap:anywhere;transition:background .15s,color .15s}
.material-catalog-page .text-link:hover{background:#f0f5fb;color:#285b8e}
.material-catalog-page .text-link:focus-visible{outline:2px solid #4779a8;outline-offset:1px;background:#f0f5fb}
.material-catalog-page .dot{flex:0 0 5px;width:5px;height:5px;border-radius:50%;background:#7b9cbe}
.material-catalog-page .theory-index-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;margin:28px 0 22px;padding:22px 24px;border:1px solid #dce6f0;border-radius:16px;background:#edf5ff}
.material-catalog-page .theory-index-head .section-title{margin:0;padding:0;border:0;border-radius:0;background:none;min-width:0;flex:1 1 240px}
.material-catalog-page .theory-index-head .theory-back-btn{min-height:44px;box-sizing:border-box;border-color:#cbdcec;font-size:14px;font-weight:600}
.material-catalog-page .task-collection{margin:0;min-width:0}
.material-catalog-page .task-collection summary{list-style:none;cursor:pointer}
.material-catalog-page .task-collection summary::-webkit-details-marker{display:none}
.material-catalog-page .collection-summary::after{content:"⌄";margin-left:auto;color:#4c78a8;font-size:17px;line-height:1;flex-shrink:0}
.material-catalog-page .task-collection[open] .collection-summary::after{transform:rotate(180deg)}
.material-catalog-page .collection-links{display:flex;flex-direction:column;gap:2px;margin:6px 0 6px 16px;padding-left:10px;border-left:2px solid #e0e9f3}
.material-catalog-page .collection-link{font-size:14px}
.material-catalog-page .variant-collection{margin:10px;padding:6px;border:1px solid #dce6f0;border-radius:10px;background:#f8fbfe}
.material-catalog-page .variant-collection-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));max-height:300px;overflow:auto;margin-left:0}
@media(max-width:900px){
  .material-catalog-page .grid{grid-template-columns:1fr;gap:16px}
  .material-catalog-page .page{padding:0 16px clamp(64px,10vh,96px)}
  .material-catalog-page .section-title{margin:20px 0 18px;padding:18px 16px;font-size:20px}
  .material-catalog-page .theory-index-head{margin:20px 0 18px;padding:18px 16px}
  .material-catalog-page .variant-collection-links{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:520px){.material-catalog-page .variant-collection-links{grid-template-columns:1fr}}
@media(max-width:480px){
  .material-catalog-page .card h3{padding:14px 16px;font-size:16px}
  .material-catalog-page .links{padding:8px}
  .material-catalog-page .text-link{min-height:44px}
}
@media(prefers-reduced-motion:reduce){.material-catalog-page .text-link{transition:none}}
.material-catalog-page .catalog-return,
.material-catalog-page .catalog-return:visited {color:#335b8a;text-decoration:none;}
.material-catalog-page .catalog-return:hover {text-decoration:underline;}
.material-catalog-page .catalog-return:focus-visible {outline:2px solid #4779a8;outline-offset:4px;}