/* Core Math Studio catalog: public metadata only. NO paid media or download links. */
.catalog-hero{background:linear-gradient(140deg,#f0f6ec,#fafaf6);border-bottom:1px solid var(--cms-line);padding:76px 0 55px}
.catalog-hero h1,.catalog-heading h2,.catalog-bottom h2{font-family:'DM Serif Display',Georgia,serif;font-weight:400;color:var(--cms-pine);letter-spacing:-.025em}
.catalog-hero h1{font-size:clamp(42px,5vw,68px);line-height:1.06;margin:16px 0 22px;max-width:730px}
.catalog-hero h1 em{font-style:italic;color:var(--cms-leaf)}
.catalog-hero>div>p{max-width:710px;color:var(--cms-muted);line-height:1.8;font-size:17px}
.catalog-notice{margin-top:25px;max-width:780px;background:#fffefa;padding:16px 19px;border:1px solid #cbdcd1;border-left:4px solid var(--cms-leaf);border-radius:8px;font-size:13px;color:#3e574b}
.catalog-notice strong{color:var(--cms-pine)}
.catalog-jump{display:flex;align-items:center;gap:11px;flex-wrap:wrap;margin-top:32px}
.catalog-jump span{font-size:12px;font-weight:700;color:var(--cms-muted);margin-right:7px}
.catalog-jump a{font-size:12px;font-weight:800;background:#e5eee5;color:var(--cms-pine);border-radius:20px;padding:9px 15px}
.catalog-jump a:hover{background:#d4e6d7}
.catalog-main{padding-block:56px}
.catalog-grade{padding:14px 0 54px;scroll-margin-top:30px}
.catalog-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px;border-bottom:1px solid var(--cms-line);padding-bottom:20px}
.catalog-heading h2{font-size:clamp(32px,3.7vw,45px);line-height:1.1;margin:9px 0 0}
.catalog-kicker{font-size:10px;font-weight:800;letter-spacing:.17em;color:var(--cms-leaf)}
.catalog-count{font-size:11px;white-space:nowrap;color:var(--cms-muted);font-weight:700}
.catalog-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.catalog-card{background:#fffefa;border:1px solid var(--cms-line);border-radius:11px;padding:22px;display:flex;flex-direction:column;min-height:250px;box-shadow:0 5px 22px #1a46340a}
.catalog-card-top{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:10px;color:var(--cms-leaf);font-weight:800;letter-spacing:.08em}
.catalog-lock{font-size:10px;letter-spacing:0;color:#6b7d70;background:#edf2eb;border-radius:15px;padding:5px 9px;white-space:nowrap}
.catalog-card h3{font-size:21px;line-height:1.25;color:var(--cms-pine);margin:26px 0 9px}
.catalog-card p{font-size:12px;line-height:1.65;color:var(--cms-muted);margin:0}
.catalog-card-foot{display:flex;flex-direction:column;gap:8px;border-top:1px solid var(--cms-line);padding-top:15px;margin-top:auto;font-size:11px;color:var(--cms-muted)}
.catalog-await{font-weight:800;color:var(--cms-leaf)}
.catalog-bottom{border-top:1px solid var(--cms-line);padding:50px 0 65px}
.catalog-bottom h2{font-size:35px;line-height:1.2;margin:10px 0}
.catalog-bottom p{max-width:680px;color:var(--cms-muted)}
.catalog-bottom a{font-weight:800;font-size:13px;color:var(--cms-pine);display:inline-block;margin-top:12px}
@media(max-width:900px){.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:580px){.catalog-hero{padding:53px 0 35px}.catalog-hero>div>p{font-size:15px}.catalog-grid{grid-template-columns:1fr}.catalog-card{min-height:215px}.catalog-card h3{margin-top:18px}.catalog-heading{align-items:start;flex-direction:column;gap:7px}.catalog-grade{padding-bottom:35px}.catalog-main{padding-top:40px}}

/* Catalog content pass: deliberately illustrative cover artwork, not customer PDFs. */
.catalog-cover{margin:-22px -22px 17px;border-bottom:1px solid var(--cms-line);background:#e7efe6;border-radius:11px 11px 0 0;overflow:hidden}
.catalog-art{display:block;width:100%;height:auto;max-height:184px}
.catalog-card h3{margin-top:17px}
.catalog-card>p{margin-bottom:16px}
.catalog-includes{font-size:12px;line-height:1.6;color:var(--cms-muted);margin-bottom:17px}
.catalog-includes summary{font-size:12px;font-weight:800;color:var(--cms-pine);cursor:pointer;list-style-position:inside;min-height:30px}
.catalog-includes summary:focus-visible{outline:3px solid #80bd4f;outline-offset:3px}
.catalog-includes p{font-size:12px;color:var(--cms-muted);margin:8px 0 0}
.catalog-card-top{align-items:flex-start;flex-wrap:wrap}
.catalog-lock{white-space:normal}
@media(max-width:580px){.catalog-art{max-height:184px}}