.main-nav a[aria-current="page"]{color:#d65278}
.button-soft{border:1px solid #d9b2bb;background:transparent;color:var(--ink)}
.page-hero{padding:66px 11% 50px;background:#f0dfe2;position:relative;overflow:hidden}
.page-hero.page-hero-lilac{background:#e8e0f0}
.page-hero.page-hero-lemon{background:#f1eac9}
.page-hero .eyebrow{margin-bottom:16px}
.page-hero h1{font:500 clamp(42px,5vw,62px)/1.04 var(--serif);letter-spacing:-2.8px;margin:0;max-width:760px}
.page-hero h1 em{color:#d85d81;font-weight:500}
.page-hero p:not(.eyebrow){font-size:13px;line-height:1.8;color:#716963;max-width:600px;margin:17px 0 0}
.page-shell{width:78%;max-width:1100px;margin:0 auto;padding:46px 0 82px}
.page-shell-narrow{max-width:790px}
.page-toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}
.filter-row{display:flex;flex-wrap:wrap;gap:8px}
.filter-chip{border:1px solid #ddd4cc;background:#fffdfa;border-radius:30px;padding:9px 14px;font:10px var(--sans);color:#6e655f;cursor:pointer}
.filter-chip[aria-pressed="true"]{background:#292522;border-color:#292522;color:#fff}
.catalog-search{height:43px;min-width:220px;max-width:290px;display:flex;align-items:center;gap:9px;padding:0 12px;border:1px solid #ddd4cc;background:#fffdfa}
.catalog-search input{width:100%;border:0;background:transparent;outline:0;font:11px var(--sans);color:var(--ink)}
.catalog-search input::placeholder{color:#aaa19a}
.catalog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.catalog-card{min-height:206px;display:flex;flex-direction:column;padding:19px;background:#fffdfa;border:1px solid #eee7df;transition:transform .2s,box-shadow .2s}
.catalog-card:hover,.catalog-card:focus-visible{transform:translateY(-4px);box-shadow:0 12px 25px #4d342012}
.catalog-meta{display:flex;justify-content:space-between;gap:10px;font:8px var(--mono);letter-spacing:.5px;color:#8d827b}
.catalog-icon{color:#d66d89;font:30px var(--serif);margin:20px 0 7px}
.catalog-card h2{font:500 21px var(--serif);margin:0 0 7px}
.catalog-card p{font-size:10px;line-height:1.7;color:#776f69;margin:0 0 14px}
.catalog-link{font-size:10px;font-weight:600;margin-top:auto}
.catalog-link span{color:#d66d89;margin-left:6px}
.catalog-empty{padding:28px 0;color:#817770;font-size:12px}
.progress-strip{display:flex;align-items:center;gap:10px;margin:0 0 22px;padding:13px 16px;background:#f5f0e9;color:#776d66;font-size:10px}
.progress-strip strong{font:500 17px var(--serif);color:#d45e80}
.lesson-page-grid{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:42px;align-items:start}
.lesson-back{font-size:10px;color:#8b8079}
.lesson-back:hover{color:#d65278}
.lesson-level{display:inline-flex;margin:22px 0 10px;padding:6px 9px;background:#f3e3e6;color:#a85068;font:8px var(--mono);letter-spacing:.7px}
.lesson-page-title{font:500 clamp(38px,4.4vw,54px)/1.08 var(--serif);letter-spacing:-1.8px;margin:0}
.lesson-page-intro{font-size:13px;line-height:1.85;color:#766d67;margin:15px 0 25px;max-width:600px}
.lesson-steps{border-top:1px solid var(--line)}
.lesson-step{display:grid;grid-template-columns:34px 1fr;gap:14px;padding:19px 0;border-bottom:1px solid var(--line)}
.lesson-step-number{display:grid;place-items:center;width:27px;height:27px;border:1px solid #e2b7c1;border-radius:50%;font:10px var(--mono);color:#c25f7c}
.lesson-step h2{font:500 17px var(--serif);margin:2px 0 6px}
.lesson-step p{font-size:11px;line-height:1.8;color:#756d66;margin:0}
.math-example{margin-top:10px;padding:12px 14px;background:#f3eee8;font:15px var(--serif);color:#574944}
.lesson-check{margin-top:26px;padding:22px;background:#f1e7ed}
.lesson-check h2{font:500 22px var(--serif);margin:0 0 8px}
.lesson-check p{font-size:11px;line-height:1.7;color:#776b70}
.inline-answer{display:flex;gap:8px;margin-top:12px}
.inline-answer input{min-width:0;flex:1}
.field-control{min-height:42px;border:1px solid #d9d0c8;border-radius:2px;padding:10px 12px;background:#fffdfa;color:var(--ink);font:12px var(--sans)}
.field-control:focus{outline:2px solid #d77a94;outline-offset:1px}
.small-button{border:0;border-radius:2px;background:#292522;color:#fff;padding:0 16px;font:10px var(--sans);font-weight:600;cursor:pointer}
.small-button:hover{background:#4c3f3f}
.text-button{border:0;background:none;padding:8px 0;color:#a2566a;font:10px var(--sans);font-weight:600;text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.feedback-line{min-height:22px;font-size:11px;font-weight:600;margin:9px 0 0}
.feedback-line.is-good{color:#397450}
.feedback-line.is-try{color:#9a614a}
.lesson-side-card{position:sticky;top:100px;background:#e5eadf;padding:21px}
.lesson-side-card span{font:8px var(--mono);letter-spacing:.5px;color:#78836f}
.lesson-side-card h2{font:500 22px/1.18 var(--serif);margin:15px 0}
.lesson-side-card p{font-size:10px;line-height:1.75;color:#6d7568}
.lesson-side-card a{display:inline-block;margin-top:8px;font-size:10px;font-weight:600}
.practice-layout{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(235px,.75fr);gap:15px;align-items:start}
.practice-card{padding:26px;background:#fffdfa;border:1px solid #eee6df}
.practice-controls{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:24px}
.select-field{display:grid;gap:6px;color:#7c716a;font:8px var(--mono);letter-spacing:.5px}
.select-field select{min-width:145px}
.practice-question{min-height:128px;background:#f5eee9;padding:22px;display:flex;flex-direction:column;justify-content:center}
.practice-question span{font:8px var(--mono);letter-spacing:1px;color:#97877e}
.practice-question strong{font:500 clamp(24px,3vw,37px) var(--serif);margin-top:9px}
.answer-row{display:flex;gap:8px;margin-top:15px}
.answer-row input{flex:1;min-width:0}
.practice-actions{display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.practice-side{background:#e8e0f0;padding:23px}
.practice-side h2{font:500 23px var(--serif);margin:0 0 13px}
.score-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}
.score-box{padding:11px 7px;background:#fff9;text-align:center}
.score-box strong{display:block;font:500 20px var(--serif);color:#915b9c}
.score-box span{font:7px var(--mono);letter-spacing:.5px;color:#807386}
.practice-side p{font-size:10px;line-height:1.7;color:#7d7180}
.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.tool-card{background:#fffdfa;padding:23px;border:1px solid #eee6df}
.tool-card h2{font:500 23px var(--serif);margin:0 0 7px}
.tool-card>p{font-size:10px;line-height:1.7;color:#817770;margin:0 0 18px}
.equation-fields{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;align-items:end}
.fraction-fields{display:grid;grid-template-columns:1fr 50px 1fr;gap:8px;align-items:end}
.fraction-side{display:grid;gap:8px}
.field-label{display:grid;gap:6px;font:8px var(--mono);letter-spacing:.6px;color:#817770}
.operator-field{align-self:stretch}
.operator-field select{width:100%}
.tool-submit{width:100%;height:41px;margin-top:14px}
.tool-result{min-height:43px;margin-top:13px;padding:11px 12px;background:#f4eee8;color:#6f625c;font-size:10px;line-height:1.7}
.tool-result strong{font:500 20px var(--serif);color:#d45e80}
.resource-callout{padding:17px 19px;background:#e4ecdf;color:#65715f;font-size:10px;line-height:1.7;margin-top:18px}
.next-step-row{display:flex;justify-content:space-between;gap:12px;margin-top:23px;border-top:1px solid var(--line);padding-top:16px}
.next-step-row a{font-size:10px;font-weight:600;color:#a2566a}
.site-footer .footer-links{display:flex;gap:16px;margin-left:auto}
.site-footer .footer-links a{font-size:10px}
@media(max-width:900px){.page-shell{width:86%}.page-hero{padding-left:7%;padding-right:7%}.catalog-grid{grid-template-columns:repeat(2,1fr)}.lesson-page-grid{grid-template-columns:minmax(0,1fr) 220px;gap:25px}.practice-layout{grid-template-columns:1fr}.practice-side{display:grid;grid-template-columns:.7fr 1fr;gap:18px;align-items:center}.practice-side h2{grid-column:1/-1;margin:0}.practice-side p{margin:0}.score-grid{grid-column:2;grid-row:2}}
@media(max-width:620px){.main-nav{display:flex;gap:12px;margin:0;max-width:48vw;overflow-x:auto;scrollbar-width:none}.main-nav::-webkit-scrollbar{display:none}.main-nav a{white-space:nowrap;font-size:9px}.header-cta{display:none}.page-hero{padding:48px 7% 37px}.page-hero h1{font-size:43px;letter-spacing:-1.7px}.page-hero p:not(.eyebrow){font-size:11px}.page-shell{width:88%;padding:30px 0 62px}.page-toolbar{display:grid}.catalog-search{max-width:none}.catalog-grid{grid-template-columns:1fr}.catalog-card{min-height:175px}.lesson-page-grid{grid-template-columns:1fr;gap:25px}.lesson-side-card{position:static}.lesson-page-title{font-size:42px}.lesson-check{padding:17px}.inline-answer{display:grid;grid-template-columns:1fr 90px}.practice-card{padding:17px}.practice-question{min-height:115px;padding:17px}.practice-side{display:block;padding:18px}.practice-side h2{margin:0 0 13px}.practice-side p{margin:12px 0 0}.score-grid{margin-top:13px}.tool-grid{grid-template-columns:1fr}.tool-card{padding:18px}.equation-fields{grid-template-columns:repeat(3,minmax(0,1fr))}.fraction-fields{grid-template-columns:1fr 42px 1fr}.site-footer .footer-links{order:3;width:100%;margin:0;justify-content:space-between}.site-footer .footer-end{order:4}}