.grade-nav{position:relative}.grade-parent{display:flex;align-items:center;justify-content:space-between;gap:12px}.grade-parent>a{flex:1}.grade-toggle{border:0;background:transparent;min-width:35px;min-height:42px;font-size:1.2rem}.grade-submenu{display:none;position:absolute;left:calc(100% + 17px);top:-10px;width:190px;background:white;border:1px solid #e2e8dd;box-shadow:0 12px 30px #1b3d211b;padding:12px 18px;border-radius:10px}.grade-submenu:before{content:'';position:absolute;right:100%;top:0;bottom:0;width:22px}.grade-nav.expanded>.grade-submenu{display:block}.grade-submenu a{font-size:.875rem}.workbook-submenu{width:210px}.workbook-nav .submenu a{font-size:.875rem}.workbook-main{max-width:1320px;margin:auto}.workbook-hero{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:55px;padding:35px 40px 60px}.workbook-hero h1{font-size:clamp(3rem,4.6vw,4.8rem)}.workbook-hero p:not(.eyebrow){font-size:1rem;max-width:510px;margin:24px 0}.workbook-hero .eyebrow{font-size:.75rem}.workbook-hero>img{width:100%;height:auto;aspect-ratio:3/2;object-fit:contain;border-radius:14px}.finder-help{display:block;font-size:.9rem;margin-top:18px;color:#527047}.workbook-catalog{padding:35px 40px 70px;scroll-margin-top:20px}.catalog-heading{display:flex;justify-content:space-between;align-items:end;gap:35px}.catalog-heading h2{font-size:clamp(2.3rem,3.7vw,3.6rem)}.catalog-heading p{font-size:1rem}.catalog-heading .eyebrow{font-size:.75rem;margin-bottom:13px}.grade-shortcuts{display:flex;flex-wrap:wrap;gap:10px;margin:30px 0}.grade-shortcuts a{font-size:.95rem;padding:11px 20px;border:1px solid #dce6d6;border-radius:30px;background:white;min-height:44px}.grade-shortcuts a:hover,.grade-shortcuts .selected{background:#204b39;color:white;border-color:#204b39}.catalog-filters{display:grid;grid-template-columns:repeat(3,minmax(0,1fr)) auto;align-items:end;gap:18px;padding:24px;background:#f3f6ef;border-radius:12px}.catalog-filters label,#mobile-filters label{font-size:.875rem;font-weight:600;color:#385b41}.catalog-filters select,#mobile-filters select{display:block;width:100%;font:1rem 'DM Sans',Arial,sans-serif;color:#244a35;background:white;border:1px solid #cddbc5;border-radius:7px;min-height:49px;padding:10px 13px;margin-top:9px}.catalog-clear{border:0;background:transparent;font-size:.9rem;padding:13px 12px;min-height:44px;color:#496740;text-decoration:underline;text-underline-offset:5px;cursor:pointer}.active-filters{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}.active-filters button{background:#f8f3e7;border:1px solid #e1cfa8;border-radius:22px;min-height:40px;font-size:.875rem;padding:8px 14px;color:#635028}.active-filters button span{font-size:1.1rem;margin-left:12px}.catalog-results-heading{display:flex;justify-content:space-between;gap:20px;margin-top:27px}.catalog-results-heading p{font-size:.875rem}.catalog-results-heading p:first-child{color:#264b34;font-weight:600}.catalog-preview-note{font-size:.875rem;line-height:1.65;max-width:850px;margin:12px 0 30px;color:#68745f}.workbook-product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:35px}.workbook-product{min-width:0}.workbook-cover-link{display:flex;align-items:center;justify-content:center;background:#f0f4eb;border-radius:12px;padding:30px;height:365px}.workbook-cover-link img{width:auto;height:100%;max-width:100%;object-fit:contain;box-shadow:8px 14px 20px #28482322;transition:transform .2s}.workbook-cover-link:hover img{transform:translateY(-6px)}.product-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:20px}.product-heading p{font-size:.875rem;color:#867041}.workbook-share{background:white;border:1px solid #dce6d5;border-radius:50%;width:44px;height:44px;display:flex;align-items:center;justify-content:center;flex:none}.workbook-product h3{font-size:1.25rem;margin:9px 0 12px;line-height:1.3}.product-subject{font-size:.875rem;color:#718366;margin-bottom:12px}.product-description{font-size:1rem;line-height:1.6;min-height:77px}.amazon-link{margin-top:23px;width:100%;font-size:.95rem}.catalog-empty{padding:40px;background:#f7f8f3;border:1px solid #e2e7dc;border-radius:14px}.catalog-empty>span{font-size:2.5rem;color:#b28b46}.catalog-empty h3{font:1.7rem Georgia,serif;margin:12px 0 18px}.catalog-empty p{max-width:630px;font-size:1rem;margin-bottom:25px}.catalog-empty>a{display:inline-block;margin-left:25px;font-size:.95rem}.catalog-guidance{display:flex;align-items:center;justify-content:space-between;gap:40px;padding:55px 40px 75px;border-top:1px solid #e1e8db}.catalog-guidance h2{font-size:2.6rem}.catalog-guidance p:not(.eyebrow){font-size:1rem;margin-top:18px}.catalog-guidance>.button{flex:none}.mobile-filter-button{display:none}.filter-dialog{width:min(460px,calc(100vw - 24px));max-height:90dvh;overflow:auto;border:1px solid #cedac3;border-radius:15px;padding:27px;background:#fff;box-shadow:0 20px 60px #15332250}.filter-dialog::backdrop{background:#15332199;backdrop-filter:blur(4px)}.filter-dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.filter-dialog-heading h2{font-size:2rem}.filter-dialog-heading button{font-size:1.7rem;border:1px solid #d8e2cf;background:white;border-radius:50%;width:44px;height:44px;flex:none}.filter-dialog #mobile-filters{display:flex;flex-direction:column;gap:22px}.filter-dialog-actions{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-top:8px}.filter-dialog-actions .button{font-size:.9rem;padding:13px 18px;gap:8px}.catalog-top{position:fixed;bottom:25px;right:25px;border:1px solid #a2834f;background:#214c3b;color:white;width:48px;height:48px;border-radius:50%;z-index:25;font-size:1.4rem;box-shadow:0 8px 20px #173b2630}.catalog-top[hidden]{display:none}#catalog-toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);background:#173d2d;color:white;padding:14px 22px;border-radius:9px;box-shadow:0 6px 25px #1c352233;z-index:80;max-width:90vw;font-size:.9rem}#catalog-toast[hidden]{display:none}
@media(hover:hover) and (min-width:1101px){.grade-nav:hover>.grade-submenu{display:block}}
@media(min-width:1101px){.grade-nav:focus-within>.grade-submenu{display:block}}
@media(max-width:1100px){.grade-submenu{position:static;box-shadow:none;width:auto;border:0;border-left:1px solid #dae3d1;border-radius:0;margin:0 0 10px 10px;padding:0 0 0 18px}.grade-submenu:before{display:none}.grade-parent>a{padding:12px 0}.grade-toggle{min-height:44px;min-width:44px}.workbook-hero{gap:30px}.workbook-product-grid{gap:24px}.workbook-cover-link{height:300px;padding:25px}.catalog-heading{align-items:start}.catalog-filters{gap:12px;padding:20px}}
@media(max-width:760px){.workbook-hero{grid-template-columns:1fr;padding:30px 24px 35px;gap:30px}.workbook-hero h1{font-size:3.1rem}.workbook-hero>img{border-radius:10px}.workbook-hero p:not(.eyebrow){margin:20px 0}.workbook-hero .eyebrow{font-size:.75rem;line-height:1.6}.workbook-catalog{padding:30px 24px 50px}.catalog-heading{flex-direction:column;gap:20px}.catalog-heading h2{font-size:2.6rem}.grade-shortcuts{gap:8px;margin:25px 0}.grade-shortcuts a{font-size:.875rem;padding:10px 15px}.catalog-filters{display:none}.mobile-filter-button{display:flex;width:100%;justify-content:space-between;min-height:50px}.catalog-results-heading{gap:12px}.catalog-results-heading p{font-size:.875rem}.workbook-product-grid{grid-template-columns:1fr;gap:42px}.workbook-cover-link{height:340px;padding:28px}.product-description{min-height:0}.workbook-product h3{font-size:1.25rem}.catalog-preview-note{font-size:.875rem}.catalog-guidance{padding:40px 24px 60px;flex-direction:column;align-items:flex-start;gap:25px}.catalog-guidance h2{font-size:2.4rem}.catalog-empty{padding:26px}.catalog-empty>a{display:block;margin:22px 0 0}.catalog-top{right:15px;bottom:18px}.filter-dialog{padding:24px 20px}.filter-dialog-heading h2{font-size:1.9rem}}
@media(prefers-reduced-motion:reduce){.workbook-cover-link img{transition:none}}
.workbook-preview-link{display:inline-flex;align-items:center;min-height:44px;border:0;background:transparent;color:var(--green);padding:10px 0;text-decoration:underline;text-underline-offset:5px;font:inherit}.amazon-link:disabled{opacity:.65;cursor:not-allowed;transform:none;box-shadow:none}.workbook-cover-link img{object-fit:contain}
.workbook-product h3 a{color:inherit;text-decoration:none}.workbook-product h3 a:hover{text-decoration:underline}.preview-error{padding:14px;background:#f4eee0;border:1px solid #c6ae73;border-radius:8px}