.subject-page .subject-hero{background:radial-gradient(circle at 82% 30%,#16806617,#0000 31%),linear-gradient(135deg,#f7f5ef 0%,#edf5f1 100%);padding:34px 0 64px}.subject-page .subject-hero-grid{grid-template-columns:minmax(0,1.05fr) minmax(390px,.95fr);gap:64px}.subject-page .breadcrumbs{margin-bottom:46px}.subject-page .subject-hero h1{max-width:680px}.subject-page .subject-hero p{margin:0}.subject-page .subject-hero .hero-actions{flex-wrap:wrap;gap:15px 22px}.subject-page .subject-syllabus-link{color:var(--ink);border-bottom:1px solid #10273b4d;padding:13px 3px;font-size:12px;font-weight:800}.subject-page .subject-trust{flex-basis:100%;margin-top:2px}.subject-page .subject-poster{height:400px;color:var(--ink);grid-template-rows:auto 1fr auto;grid-template-columns:1fr;align-items:stretch;padding:28px;display:grid;box-shadow:0 24px 60px #10273b1f}.subject-page .subject-poster:before{width:430px;height:430px;top:-180px;left:auto;right:-130px;transform:none}.subject-page .subject-poster>div{background:0 0;border:0;padding:0;border-radius:0!important}.subject-page .subject-poster-title{z-index:1;grid-template-columns:1fr auto;align-items:start;display:grid;position:relative}.subject-page .subject-poster-title small{letter-spacing:1.5px;color:currentColor;opacity:.7;font-size:8px;font-weight:850}.subject-page .subject-poster-title .poster-symbol{opacity:.88;text-transform:none;grid-area:1/2/3;width:auto;font-size:76px;line-height:.8;position:static}.subject-page .subject-poster-title strong{max-width:270px;margin-top:9px;font-size:25px;line-height:1.15}.subject-page .subject-capabilities{z-index:1;grid-template-columns:1fr 1fr;align-content:center;gap:8px 12px;position:relative;display:grid!important}.subject-page .subject-capabilities>span{text-transform:none;background:#ffffff94;border:1px solid #10273b1a;border-radius:11px;align-items:center;gap:10px;min-height:43px;padding:10px 12px;font-size:10px;font-weight:800;display:flex}.subject-page .subject-capabilities b{color:var(--green);font-family:Georgia,serif;font-size:12px}.subject-page .subject-poster-stats{z-index:1;gap:18px;position:relative;border-top:1px solid #10273b1f!important;padding-top:18px!important;display:flex!important}.subject-page .subject-poster-stats>span{text-transform:none;color:#10273bb3;font-size:8px}.subject-page .subject-poster-stats strong{color:var(--ink);margin-right:3px;font-size:11px}.subject-outcomes{border-bottom:1px solid var(--line);grid-template-columns:.78fr 1.22fr;gap:70px;padding-block:70px;display:grid}.subject-outcomes-heading h2{letter-spacing:-1.5px;max-width:420px;margin:15px 0 0;font-size:34px;line-height:1.15}.subject-outcome-grid{border:1px solid var(--line);background:#fff;border-radius:18px;grid-template-columns:1fr 1fr;display:grid;overflow:hidden}.subject-outcome-grid article{border-bottom:1px solid var(--line);grid-template-columns:32px 1fr;gap:12px;padding:22px;display:grid}.subject-outcome-grid article:nth-child(odd){border-right:1px solid var(--line)}.subject-outcome-grid article:nth-last-child(-n+2){border-bottom:0}.subject-outcome-grid article>b{color:var(--orange);font-family:Georgia,serif;font-size:15px}.subject-outcome-grid h3{margin:0 0 7px;font-size:13px}.subject-outcome-grid p{color:var(--muted);margin:0;font-size:10px;line-height:1.55}.subject-page .subject-content{grid-template-columns:minmax(0,1fr) 350px;gap:48px;padding-block:74px 92px;scroll-margin-top:20px}.subject-page .section-heading.compact{align-items:end;margin-bottom:22px}.subject-page .section-heading.compact h2{margin-bottom:7px}.subject-page .section-heading.compact p{color:var(--muted);margin:0;font-size:11px}.textbook-assurance{background:#f4f8f6;border:1px solid #d9e7e2;border-radius:13px;grid-template-columns:42px 1fr;align-items:start;gap:13px;margin-bottom:20px;padding:15px 17px;display:grid}.textbook-assurance>span{width:39px;height:39px;color:var(--green);background:#fff;border-radius:10px;place-items:center;display:grid}.textbook-assurance>div{gap:4px;display:grid}.textbook-assurance small{letter-spacing:1px;color:var(--green);font-size:7px;font-weight:850}.textbook-assurance strong{font-size:11px;line-height:1.45}.textbook-assurance p{color:var(--muted);margin:0;font-size:9px}.subject-lesson-progress{background:var(--ink);color:#fff;border-radius:16px;justify-content:space-between;align-items:center;gap:24px;margin-bottom:20px;padding:18px 20px;display:flex;box-shadow:0 12px 30px #10273b1c}.lesson-progress-intro{align-items:center;gap:14px;min-width:0;display:flex}.lesson-progress-ring{--lesson-progress:0%;background:conic-gradient(#74cbb5 var(--lesson-progress),#ffffff21 0);border-radius:50%;flex:none;place-items:center;width:54px;height:54px;display:grid;position:relative}.lesson-progress-ring:after{content:"";background:var(--ink);border-radius:50%;width:42px;height:42px;position:absolute}.lesson-progress-ring b{z-index:1;font-size:9px;position:relative}.lesson-progress-intro>div{gap:3px;display:grid}.lesson-progress-intro small{letter-spacing:1.1px;color:#75c7b3;font-size:7px;font-weight:850}.lesson-progress-intro strong{font-size:12px}.lesson-progress-intro p{color:#aebbc4;margin:0;font-size:8px}.lesson-progress-counts{flex:none;align-items:center;gap:15px;display:flex}.lesson-progress-counts span{text-align:center;gap:2px;min-width:52px;display:grid}.lesson-progress-counts b{font-size:18px}.lesson-progress-counts small{color:#aebbc4;font-size:7px}.lesson-progress-counts i{background:#ffffff21;width:1px;height:30px}.chapter-catalogue{gap:15px;display:grid}.chapter-tools{grid-template-columns:minmax(200px,1fr) auto;gap:10px;display:grid}.chapter-search{border:1px solid var(--line);height:44px;color:var(--muted);background:#fff;border-radius:11px;align-items:center;gap:9px;padding:0 13px;display:flex}.chapter-search input{width:100%;font:inherit;color:var(--ink);background:0 0;border:0;outline:0;font-size:10px}.chapter-tools>button,.chapter-book-tabs button,.chapter-empty button{border:1px solid var(--line);color:var(--ink);cursor:pointer;background:#fff;border-radius:10px;padding:0 14px;font-size:9px;font-weight:800}.chapter-tools>button.active,.chapter-book-tabs button.active{background:var(--ink);border-color:var(--ink);color:#fff}.chapter-book-tabs{scrollbar-width:thin;gap:7px;padding-bottom:3px;display:flex;overflow-x:auto}.chapter-book-tabs button{text-overflow:ellipsis;white-space:nowrap;flex:none;max-width:260px;min-height:36px;overflow:hidden}.subject-page .chapter-list{gap:29px!important}.subject-page .chapter-book-heading{align-items:center;padding:0 2px 11px}.subject-page .chapter{transition:border-color .2s,box-shadow .2s,transform .2s}.subject-page .chapter:hover{border-color:#b5cbc4;transform:translateY(-1px);box-shadow:0 8px 25px #10273b0f}.subject-page .chapter.locked{background:#fcfcfb;grid-template-columns:48px minmax(0,1fr) auto}.chapter-lock-action{color:#5f6d77;cursor:pointer;background:#fff;border:1px solid #d9d7cf;border-radius:999px;align-items:center;gap:7px;min-height:35px;padding:7px 11px;display:flex}.chapter-lock-action span{font-size:12px}.chapter-lock-action b{white-space:nowrap;font-size:7px}.chapter-lock-action:hover{border-color:var(--orange);color:#ac572d}.chapter-empty{border:1px dashed var(--line);color:var(--muted);border-radius:13px;justify-items:center;gap:10px;padding:35px;display:grid}.chapter-empty strong{font-size:11px}.chapter-empty button{color:var(--green);padding:9px 12px}.question-paper-archive{border-top:1px solid var(--line);gap:16px;margin-top:44px;padding-top:38px;scroll-margin-top:22px;display:grid}.paper-archive-heading{justify-content:space-between;align-items:end;gap:25px;display:flex}.paper-archive-heading h2{letter-spacing:-1.1px;margin:13px 0 8px;font-size:31px;line-height:1.14}.paper-archive-heading p{color:var(--muted);max-width:560px;margin:0;font-size:10px;line-height:1.6}.paper-archive-count{width:68px;height:68px;color:var(--green);background:#e6f3ef;border-radius:18px;flex:none;align-content:center;place-items:center;display:grid}.paper-archive-count strong{font-size:22px;line-height:1}.paper-archive-count span{letter-spacing:.5px;text-transform:uppercase;margin-top:5px;font-size:7px;font-weight:800}.paper-archive-note{background:#f4f8f6;border:1px solid #d8e6e1;border-radius:12px;grid-template-columns:30px 1fr;align-items:start;gap:11px;padding:13px 15px;display:grid}.paper-archive-note>span{width:28px;height:28px;color:var(--green);background:#d8eee7;border-radius:9px;place-items:center;font-weight:900;display:grid}.paper-archive-note p{color:var(--muted);margin:0;font-size:9px;line-height:1.55}.paper-archive-note strong{color:var(--ink)}.paper-year-list{gap:11px;display:grid}.paper-year-card{border:1px solid var(--line);background:#fff;border-radius:16px;transition:border-color .2s,box-shadow .2s;overflow:hidden}.paper-year-card.active{border-color:#a9c9bf;box-shadow:0 14px 34px #10273b14}.paper-year-toggle{text-align:left;width:100%;color:var(--ink);cursor:pointer;background:#fff;border:0;grid-template-columns:74px minmax(0,1fr) auto auto;align-items:center;gap:17px;padding:17px;display:grid}.paper-year-toggle:hover{background:#fbfcfb}.paper-year-card.active .paper-year-toggle{background:#f7faf8}.paper-year{background:var(--ink);color:#fff;border-radius:14px;place-items:center;width:66px;height:66px;font-family:Georgia,serif;font-size:20px;display:grid}.paper-year-toggle>div:nth-child(2){min-width:0}.paper-year-toggle small{letter-spacing:1px;color:var(--green);text-transform:uppercase;margin-bottom:6px;font-size:7px;font-weight:850;display:block}.paper-year-toggle h3{margin:0 0 5px;font-size:13px;line-height:1.35}.paper-year-toggle p{color:var(--muted);margin:0;font-size:8px;line-height:1.45}.paper-facts{border-left:1px solid var(--line);border-right:1px solid var(--line);gap:16px;padding-inline:12px;display:flex}.paper-facts span{min-width:44px;color:var(--muted);gap:2px;font-size:7px;display:grid}.paper-facts b{color:var(--ink);font-size:13px}.paper-open-action{color:var(--green);text-align:right;min-width:56px;font-size:8px;font-weight:850}.paper-detail{border-top:1px solid var(--line);background:#fbfcfb;padding:20px}.paper-loading,.paper-error{text-align:center;color:var(--muted);border:1px dashed #cbd9d4;border-radius:12px;padding:25px;font-size:10px}.paper-error{color:#934b3c}.paper-error button{color:var(--green);cursor:pointer;background:0 0;border:0;margin:10px auto 0;font-weight:800;display:block}.paper-detail-toolbar{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;padding-bottom:15px;display:flex}.paper-detail-toolbar>div{flex-wrap:wrap;gap:8px;display:flex}.paper-detail-toolbar span{color:#526873;border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 9px;font-size:7px;font-weight:800}.paper-detail-toolbar a{color:var(--green);font-size:8px;font-weight:850}.paper-instructions{border:1px solid var(--line);background:#fff;border-radius:11px;margin-top:14px;padding:11px 13px}.paper-instructions summary{cursor:pointer;font-size:9px;font-weight:850}.paper-instructions ol{color:var(--muted);margin:11px 0 0;padding-left:20px;font-size:8px;line-height:1.55}.paper-sections{gap:24px;margin-top:20px;display:grid}.paper-section{gap:12px;display:grid}.paper-section>header{justify-content:space-between;align-items:start;gap:20px;display:flex}.paper-section>header small{letter-spacing:1px;color:var(--orange);font-size:7px;font-weight:850}.paper-section>header h3{margin:5px 0;font-size:18px}.paper-section>header p{color:var(--muted);margin:0;font-size:8px}.paper-section>header>strong{background:var(--ink);color:#fff;white-space:nowrap;border-radius:999px;padding:8px 10px;font-size:8px}.paper-question-list{gap:10px;display:grid}.paper-question{border:1px solid var(--line);background:#fff;border-radius:13px;padding:15px}.paper-question-heading{align-items:center;gap:8px;margin-bottom:11px;display:flex}.paper-question-heading>span{letter-spacing:.7px;color:#fff;background:var(--green);border-radius:7px;padding:6px 8px;font-size:8px;font-weight:900}.paper-question-heading>b{color:var(--orange);background:#fff4ec;border-radius:999px;padding:5px 8px;font-size:7px}.paper-question-heading>small{color:var(--muted);margin-left:auto;font-size:7px}.paper-question>.formatted-content{font-size:11px;line-height:1.65}.paper-question>.formatted-content p{margin:0}.paper-options{grid-template-columns:1fr 1fr;gap:7px;margin:13px 0 0;padding:0;list-style:none;display:grid}.paper-options li{border:1px solid var(--line);color:#455965;border-radius:9px;align-items:center;gap:8px;padding:9px;font-size:9px;display:flex}.paper-options b{width:23px;height:23px;color:var(--green);background:#eef4f2;border-radius:7px;place-items:center;display:grid}.paper-map-items{background:#f2f6f4;border-radius:10px;margin-top:13px;padding:12px}.paper-map-items>small{letter-spacing:1px;color:var(--green);font-size:7px;font-weight:850}.paper-map-items ol{columns:2;margin:9px 0 0;padding-left:21px;font-size:9px;line-height:1.65}.paper-answer{border-top:1px solid var(--line);margin-top:13px;padding-top:11px}.paper-answer>button{color:var(--green);cursor:pointer;background:0 0;border:0;align-items:center;gap:7px;padding:0;font-size:8px;font-weight:850;display:flex}.paper-answer>button span{background:#e2f0eb;border-radius:50%;place-items:center;width:21px;height:21px;display:grid}.paper-answer-body{border-left:3px solid var(--green);background:#edf6f2;border-radius:11px;margin-top:11px;padding:14px 15px}.paper-answer-body>small{letter-spacing:1px;color:var(--green);margin-bottom:8px;font-size:7px;font-weight:850;display:block}.paper-answer-body .formatted-content{color:#294353;font-size:10px;line-height:1.65}.paper-answer-body .formatted-content p:first-child{margin-top:0}.paper-answer-body>p{color:#687b84;border-top:1px solid #d5e6df;margin:10px 0 0;padding-top:9px;font-size:7px}.paper-alternative{border-top:1px dashed #cfdad6;margin-top:15px;padding-top:15px}.paper-alternative>span{color:var(--orange);background:#fff1e8;border-radius:999px;place-items:center;margin-bottom:9px;padding:6px 9px;font-size:7px;font-weight:900;display:inline-grid}.paper-alternative>.formatted-content{font-size:11px;line-height:1.65}.subject-page .purchase-card{background:#fff;border-color:#d8e1de;top:20px;box-shadow:0 18px 48px #10273b17}.purchase-card-label{letter-spacing:1.25px;color:var(--green);margin-bottom:14px;font-size:7px;font-weight:850}.subject-page .purchase-top h3{margin:0 0 7px;font-size:24px;line-height:1.17}.subject-page .purchase-top p{color:var(--muted);margin:0 0 16px;font-size:10px;line-height:1.55}.subject-page .purchase-top>div{margin:0}.subject-page .purchase-top small{margin-top:3px;display:block}.subject-page .purchase-card .full{margin-top:17px}.subject-ai-section{background:var(--ink);color:#fff;padding-block:78px}.subject-ai-grid{grid-template-columns:.9fr 1.1fr;align-items:start;gap:85px;display:grid}.subject-ai-grid h2{letter-spacing:-1.7px;margin:16px 0;font-size:39px;line-height:1.12}.subject-ai-grid>div:first-child>p{color:#b6c2ca;max-width:500px;font-size:12px;line-height:1.75}.subject-ai-safeguards{border-top:1px solid #ffffff24;display:grid}.subject-ai-safeguards article{border-bottom:1px solid #ffffff24;grid-template-columns:42px 1fr;gap:18px;padding:22px 0;display:grid}.subject-ai-safeguards article>span{color:var(--orange);font-family:Georgia,serif;font-size:17px}.subject-ai-safeguards strong{font-size:13px}.subject-ai-safeguards p{color:#aebac3;margin:6px 0 0;font-size:10px;line-height:1.6}.subject-mobile-purchase{display:none}@media (max-width:900px){.subject-page .subject-hero-grid{grid-template-columns:1fr;gap:38px}.subject-page .subject-poster{height:370px}.subject-outcomes,.subject-ai-grid{grid-template-columns:1fr;gap:34px}.subject-page .subject-content{grid-template-columns:1fr;gap:35px}.subject-page .subject-content>.purchase-card{order:-1;position:relative;top:auto}.subject-mobile-purchase{z-index:44;color:#fff;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#10273bf7;border:1px solid #ffffff29;border-radius:15px;justify-content:space-between;align-items:center;gap:12px;padding:10px 10px 10px 15px;display:flex;position:fixed;bottom:76px;left:12px;right:12px;box-shadow:0 17px 45px #10273b4d}.subject-mobile-purchase>div:first-child{gap:2px;display:grid}.subject-mobile-purchase small{letter-spacing:1px;color:#9bd8c7;font-size:6px;font-weight:850}.subject-mobile-purchase strong{font-size:17px}.subject-mobile-purchase .purchase-action{margin-left:auto}.subject-mobile-purchase .button{box-shadow:none;padding:11px 15px;font-size:10px}.subject-mobile-purchase .purchase-message{display:none}}@media (max-width:600px){.subject-page .subject-hero{padding:24px 0 42px}.subject-page .breadcrumbs{white-space:nowrap;text-overflow:ellipsis;margin-bottom:30px;font-size:9px;overflow:hidden}.subject-page .subject-hero h1{margin:13px 0 16px;font-size:42px}.subject-page .subject-hero p{font-size:13px;line-height:1.65}.subject-page .subject-hero .hero-actions{align-items:stretch;gap:10px;margin-top:22px}.subject-page .subject-hero .button{width:100%}.subject-page .subject-syllabus-link{text-align:center;border:0;padding:7px}.subject-page .subject-trust{justify-content:center;font-size:8px}.subject-page .subject-poster{border-radius:20px;gap:20px;height:auto;min-height:330px;padding:21px}.subject-page .subject-poster-title .poster-symbol{font-size:55px}.subject-page .subject-poster-title strong{max-width:210px;font-size:21px}.subject-page .subject-capabilities{grid-template-columns:1fr 1fr;gap:7px}.subject-page .subject-capabilities>span{min-height:38px;padding:8px;font-size:8px}.subject-page .subject-poster-stats{justify-content:space-between;gap:10px}.subject-page .subject-poster-stats>span{font-size:7px}.subject-outcomes{gap:25px;padding-block:48px}.subject-outcomes-heading h2{font-size:29px}.subject-outcome-grid{grid-template-columns:1fr}.subject-outcome-grid article,.subject-outcome-grid article:nth-child(odd){border-right:0;border-bottom:1px solid var(--line)}.subject-outcome-grid article:last-child{border-bottom:0}.subject-page .subject-content{padding-block:48px 65px}.subject-page .section-heading.compact{gap:10px;display:grid}.subject-page .section-heading.compact>span{font-size:9px}.textbook-assurance{grid-template-columns:34px 1fr;padding:13px}.textbook-assurance>span{width:32px;height:32px}.subject-lesson-progress{align-items:flex-start;padding:16px;display:grid}.lesson-progress-counts{border-top:1px solid #ffffff1f;justify-content:space-between;width:100%;padding-top:13px}.lesson-progress-counts span{flex:1;min-width:0}.chapter-tools{grid-template-columns:1fr auto}.chapter-tools>button{padding-inline:10px}.subject-page .chapter{gap:9px;padding:13px}.subject-page .chapter.locked{grid-template-columns:35px minmax(0,1fr) 34px}.subject-page .chapter-number{font-size:18px}.chapter-lock-action{place-items:center;width:34px;height:34px;min-height:34px;padding:0;display:grid}.chapter-lock-action b{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.question-paper-archive{margin-top:34px;padding-top:32px}.paper-archive-heading{align-items:start}.paper-archive-heading h2{font-size:27px}.paper-archive-count{border-radius:15px;width:58px;height:58px}.paper-year-toggle{grid-template-columns:55px minmax(0,1fr) auto;gap:11px;padding:13px}.paper-year{width:52px;height:52px;font-size:17px}.paper-facts{display:none}.paper-open-action{min-width:48px}.paper-detail{padding:14px}.paper-detail-toolbar{align-items:flex-start;display:grid}.paper-section>header{gap:9px;display:grid}.paper-section>header>strong{justify-self:start}.paper-question{padding:13px}.paper-options{grid-template-columns:1fr}.paper-map-items ol{columns:1}.subject-ai-section{padding-block:56px}.subject-ai-grid h2{font-size:32px}.subject-ai-safeguards article{padding:18px 0}}