:root{--ink:#17352d;--muted:#64736d;--green:#0b6748;--green-dark:#084b37;--mint:#eaf5ef;--line:#e3e9e5;--paper:#fffefa;--bg:#f4f7f4;--gold:#e5aa5d;--shadow:0 16px 40px rgba(19,57,44,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--bg);color:#1e2925;font-family:Inter,"Noto Sans Bengali","Kalpurush","SolaimanLipi",sans-serif;font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}h1,h2,h3,p{margin-top:0}h1,h2,h3,.brand-mark,.grade-card,.book-number{font-family:"Noto Sans Bengali","Kalpurush","SolaimanLipi",sans-serif}a{color:inherit;text-decoration:none}a:focus-visible,button:focus-visible{outline:3px solid #e5aa5d;outline-offset:3px}.site-header{position:sticky;top:0;z-index:10;background:rgba(255,254,250,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.header-inner{max-width:1240px;padding:14px 26px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;min-width:max-content}.brand-mark{width:49px;height:49px;border-radius:15px;background:var(--green);color:#fff;display:grid;place-items:center;font-weight:800;font-size:20px;box-shadow:0 7px 18px #0b674833}.brand strong,.brand small{display:block}.brand strong{color:var(--green-dark);font-size:19px;line-height:1.3}.brand small{font-size:12px;color:var(--muted)}.nav-links{display:flex;align-items:center;justify-content:flex-end;gap:7px;flex-wrap:wrap}.nav-links a{padding:9px 13px;border:1px solid transparent;border-radius:999px;color:#3f514a;font-size:13px;transition:.2s}.nav-links a:hover{border-color:#d7e4dc;background:#f1f7f3;color:var(--green)}.nav-toggle{display:none;border:1px solid var(--line);background:white;border-radius:12px;padding:7px 11px;font-size:20px;color:var(--green)}.home-main,.class-main{max-width:1160px;margin:0 auto;padding:28px 24px 72px}.hero{overflow:hidden;position:relative;min-height:300px;border-radius:28px;padding:43px 54px;display:grid;grid-template-columns:1.15fr .85fr;align-items:center;background:linear-gradient(115deg,#0b5c43 0%,#13815a 62%,#34a773 100%);color:#fff;box-shadow:var(--shadow)}.hero:after{content:"";position:absolute;width:350px;height:350px;border-radius:50%;border:1px solid #ffffff24;right:-72px;top:-160px;box-shadow:0 0 0 32px #ffffff0b,0 0 0 70px #ffffff08}.hero-copy{position:relative;z-index:1;max-width:610px}.kicker,.section-kicker{display:block;font-size:12px;letter-spacing:.04em;font-weight:700;color:#79bd97}.hero h1{font-size:clamp(30px,4vw,46px);line-height:1.25;margin:8px 0 11px}.hero p{font-size:15px;color:#e0f1e8;max-width:610px;margin-bottom:20px}.hero-cta{display:inline-flex;align-items:center;gap:13px;border-radius:999px;background:#fff;color:var(--green-dark);padding:10px 17px;font-weight:700;font-size:14px}.hero-cta span{font-size:20px}.hero-art{position:relative;height:210px;display:grid;place-items:center}.book-illustration{position:relative;width:180px;height:205px;border-radius:7px 17px 17px 7px;background:#fbefd9;color:var(--green-dark);box-shadow:16px 18px 0 #092e25aa,0 30px 42px #072a234d;transform:rotate(7deg);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px}.book-illustration:before{content:"";position:absolute;left:13px;top:0;bottom:0;border-left:2px solid #d9caaa}.book-illustration span{font-size:22px;font-weight:700}.book-illustration b{font-size:35px}.book-illustration i{font-style:normal;font-size:29px}.float-dot{position:absolute;border-radius:50%;background:#ffd28d}.float-dot.one{width:17px;height:17px;top:14px;right:24%}.float-dot.two{width:10px;height:10px;bottom:13px;left:22%}.ad-slot{min-height:74px;margin:23px 0;border:1px dashed #d8e2dc;border-radius:16px;background:#fbfcfa;display:grid;place-items:center;color:#8a9791;font-size:12px}.track-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:17px}.track-panel{scroll-margin-top:90px;padding:22px;border:1px solid var(--line);border-radius:21px;background:#fff;box-shadow:0 5px 16px #153a2c08}.section-heading,.book-section-title{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:16px}.section-heading h2,.book-section-title h2{font-size:21px;line-height:1.4;color:var(--ink);margin:2px 0 0}.section-heading small,.book-count{color:var(--muted);font-size:12px;white-space:nowrap}.grade-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:9px}.grade-card{min-height:90px;position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0;background:#f5f9f6;border:1px solid #e3ece6;border-radius:14px;transition:transform .18s,box-shadow .18s,background .18s}.grade-card:hover{background:var(--mint);transform:translateY(-3px);box-shadow:0 8px 18px #164c3420}.grade-card>span{font-size:29px;font-weight:700;color:var(--green-dark);line-height:1.25}.grade-card small{font-size:10px;color:var(--muted)}.grade-card b{position:absolute;right:9px;top:8px;color:#a2b5aa;font-size:14px}.track-panel.primary .section-kicker,.track-panel.secondary .section-kicker{color:#419273}.track-panel.higher{background:#fbfaf4}.track-panel.ibtedayi{background:#fcfbf7}.track-panel.dakhil{background:#f8f8fd}.track-panel.vocational{background:#f5f9fb}.home-note{margin-top:22px;padding:23px 26px;border-radius:18px;background:#eaf2ed}.home-note h2{font-size:19px;color:var(--green-dark);margin-bottom:7px}.home-note p{margin:0;color:#566760;font-size:14px;max-width:800px}.class-main{max-width:980px;padding-top:16px}.breadcrumbs{display:flex;align-items:center;gap:8px;color:#839089;font-size:12px;padding:6px 0 16px}.breadcrumbs a{color:var(--green)}.class-hero{padding:28px 32px 25px;border-radius:22px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 26px #153a2c08}.year-badge{display:inline-flex;align-items:center;border-radius:999px;padding:5px 11px;background:#eaf5ef;color:var(--green);font-weight:700;font-size:11px}.class-hero h1{color:#182b24;font-size:clamp(25px,3.2vw,34px);line-height:1.35;margin:12px 0 8px}.class-hero p{font-size:14px;color:#5e6d66;line-height:1.9;margin-bottom:15px;max-width:850px}.class-hero-meta{display:flex;gap:18px;flex-wrap:wrap;color:var(--green);font-size:12px;font-weight:600}.book-section{margin:22px 0;padding:23px 24px;border-radius:20px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 24px #153a2c08}.book-section-title{margin-bottom:13px}.book-section-title .section-kicker{color:#489779}.book-list{border:1px solid #e8eeea;border-radius:14px;overflow:hidden}.book-row{display:grid;grid-template-columns:37px minmax(140px,1fr) auto;align-items:center;gap:12px;padding:12px 13px;min-height:72px;border-bottom:1px solid #edf1ee;transition:background .15s}.book-row:last-child{border-bottom:0}.book-row:nth-child(even){background:#fbfcfa}.book-row:hover{background:#f1f7f3}.book-number{width:30px;height:30px;border-radius:10px;display:grid;place-items:center;background:#edf6f0;color:var(--green);font-weight:700;font-size:13px}.book-info strong,.book-info small{display:block}.book-info strong{font-weight:600;color:#263b32;font-size:14px;line-height:1.55}.book-info small{color:#87938d;font-size:10px;margin-top:2px}.book-actions{display:flex;align-items:center;gap:7px}.action{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:38px;padding:7px 11px;border:1px solid #dce8e0;border-radius:10px;font-size:11px;font-weight:700;white-space:nowrap;transition:.18s}.action span{font-size:16px;line-height:1}.action.view{background:#fff;color:var(--green);border-color:#bdd8c8}.action.view:hover{background:#eff8f2}.action.download{background:var(--green);border-color:var(--green);color:white;box-shadow:0 4px 10px #0b674822}.action.download:hover{background:var(--green-dark);transform:translateY(-1px)}.action[aria-busy=true]{opacity:.7}.action.disabled{color:#9aa49f;background:#f6f7f6}.source-credit{display:flex;justify-content:space-between;gap:12px;padding:13px 4px;color:#79867f;font-size:12px}.source-credit a{font-weight:600;color:var(--green)}.related{margin-top:30px}.related .book-section-title>a{font-size:12px;color:var(--green);font-weight:600;white-space:nowrap}.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.related-card{padding:13px 14px;border:1px solid var(--line);border-radius:14px;background:#fff;display:flex;flex-direction:column;gap:3px;transition:.18s}.related-card:hover{border-color:#a8cfb5;background:#f8fbf8;transform:translateY(-2px)}.related-card small{font-size:10px;color:#849189}.related-card strong{font-size:14px;color:var(--ink)}.related-card span{font-size:10px;color:var(--green);margin-top:3px}.empty-state{margin:22px 0;padding:28px;border:1px dashed #d7e3dc;border-radius:16px;background:#fff;text-align:center;color:var(--muted)}.empty-state h2{font-size:18px;color:var(--ink)}footer{background:#103f30;color:#fff;padding:28px 24px}.footer-inner{max-width:1160px;margin:auto;display:grid;grid-template-columns:1fr auto;align-items:center;gap:5px 20px}.footer-inner strong{font-size:17px}.footer-inner p{margin:0;color:#c1d9cc;font-size:12px}.footer-inner a{grid-column:2;grid-row:1;color:#d7eadf;font-size:12px}.footer-inner small{grid-column:1/-1;color:#98b9a6;font-size:10px;padding-top:10px;border-top:1px solid #ffffff20}.policy{max-width:760px;min-height:55vh;margin:32px auto;padding:34px;background:white;border-radius:20px;border:1px solid var(--line)}.policy h1{color:var(--ink);font-size:28px}.policy p{color:#596b62;line-height:2}.policy>a{color:var(--green);font-weight:600}
@media(max-width:900px){.header-inner{padding:11px 18px}.nav-links{gap:0}.nav-links a{padding:8px 9px;font-size:12px}.hero{padding:36px;min-height:275px}.track-panel{padding:18px}.grade-grid{gap:7px}.grade-card{min-height:78px}.grade-card>span{font-size:26px}}
@media(max-width:680px){body{font-size:15px}.header-inner{padding:10px 15px}.brand{gap:9px}.brand-mark{width:42px;height:42px;border-radius:13px;font-size:17px}.brand strong{font-size:16px}.brand small{font-size:10px}.nav-toggle{display:block}.nav-links{display:none;position:absolute;left:12px;right:12px;top:64px;padding:12px;border:1px solid var(--line);border-radius:16px;background:#fffefa;box-shadow:var(--shadow);grid-template-columns:repeat(2,1fr)}.nav-links.open{display:grid}.nav-links a{padding:9px 10px}.home-main,.class-main{padding:16px 14px 44px}.hero{min-height:0;padding:26px 23px;border-radius:22px;grid-template-columns:1fr}.hero h1{font-size:30px}.hero p{font-size:13px;line-height:1.8}.hero-art{position:absolute;right:-30px;bottom:-48px;opacity:.19;transform:scale(.8)}.hero-copy{max-width:100%}.ad-slot{min-height:58px;margin:15px 0;border-radius:13px}.track-grid{grid-template-columns:1fr;gap:12px}.track-panel{padding:17px;border-radius:17px}.section-heading{margin-bottom:12px}.section-heading h2{font-size:19px}.grade-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:6px}.grade-card{min-height:72px;border-radius:12px}.grade-card>span{font-size:23px}.grade-card small{font-size:9px}.grade-card b{right:6px;top:4px;font-size:11px}.home-note{margin-top:13px;padding:18px;border-radius:15px}.home-note p{font-size:12px;line-height:1.9}.class-main{padding-top:9px}.breadcrumbs{gap:5px;font-size:10px;padding-bottom:10px}.class-hero{padding:21px 19px;border-radius:17px}.class-hero h1{font-size:25px}.class-hero p{font-size:12px;line-height:1.85}.class-hero-meta{gap:10px;font-size:10px}.book-section{margin:14px 0;padding:16px 13px;border-radius:16px}.book-section-title h2{font-size:18px}.book-count{font-size:10px}.book-row{grid-template-columns:30px minmax(0,1fr);gap:9px;padding:10px;min-height:0}.book-number{width:27px;height:27px;font-size:11px}.book-info strong{font-size:13px}.book-info small{font-size:9px}.book-actions{grid-column:2;justify-content:flex-start;padding-top:3px}.action{min-height:35px;padding:6px 10px;font-size:10px;border-radius:9px}.source-credit{font-size:10px;padding:9px 2px}.related{margin-top:21px}.related-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.related-card{padding:11px;border-radius:12px}.related-card strong{font-size:13px}.footer-inner{grid-template-columns:1fr auto}.footer-inner p{font-size:10px;grid-column:1/-1;grid-row:2}.footer-inner a{grid-column:2;grid-row:1}.footer-inner small{grid-row:3}.policy{margin:15px;padding:23px;border-radius:16px}.policy h1{font-size:24px}}
@media(max-width:370px){.brand strong{font-size:14px}.brand small{font-size:9px}.grade-grid{gap:4px}.grade-card{min-height:65px}.grade-card>span{font-size:20px}.section-heading h2{font-size:17px}.action{padding:6px 7px;gap:4px}.action span{font-size:14px}.book-actions{gap:5px}}
.grade-grid{grid-template-columns:repeat(5,minmax(0,1fr))}
@media(max-width:370px){.grade-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.search-box{display:flex;align-items:center;gap:10px;max-width:560px;margin:18px 0 14px;padding:6px 7px 6px 14px;border-radius:14px;background:#fff;color:var(--green);box-shadow:0 8px 22px #062f2330}.search-box>span{font-size:24px;line-height:1}.search-box input{flex:1;min-width:0;border:0;outline:0;color:#243a31;font:inherit;font-size:13px}.search-box input::placeholder{color:#8b9891}.search-box button{border:0;border-radius:10px;background:var(--gold);color:#3b2912;padding:9px 14px;font:inherit;font-size:12px;font-weight:700;cursor:pointer}.search-results{margin:14px 0;padding:14px 17px;border:1px solid var(--line);border-radius:17px;background:white;box-shadow:var(--shadow)}.search-results-head{padding-bottom:8px;color:var(--green);font-size:12px;font-weight:700}.search-result{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:9px 2px;border-top:1px solid #edf1ee}.search-result>a:first-child{display:grid;gap:2px}.search-result strong{font-size:13px;color:#263b32}.search-result small{font-size:10px;color:#829087}.mini-view{flex:none;padding:6px 9px;border-radius:8px;background:var(--mint);color:var(--green);font-size:10px;font-weight:700}.no-results{margin:0;padding:8px 0;color:var(--muted);font-size:12px}
@media(max-width:680px){.search-box{gap:7px;margin:14px 0 11px;padding-left:11px}.search-box input{font-size:11px}.search-box button{padding:8px 10px;font-size:10px}.search-results{padding:11px 12px}.search-result{gap:6px}.search-result strong{font-size:11px}}
.hero-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.future-cta{display:inline-flex;align-items:center;gap:9px;border:1px solid #ffffff66;border-radius:999px;padding:9px 14px;color:#fff;font-size:12px;font-weight:700;background:#ffffff12}.future-cta:hover{background:#ffffff24}.year-link{background:#edf6f0!important;color:var(--green)!important;border-color:#dcebe1!important;font-weight:700}.future-hero{background:linear-gradient(115deg,#123f64 0%,#256a91 62%,#5d9fbd 100%)}.not-published-pill{display:inline-flex;align-items:center;gap:9px;border:1px solid #ffffff55;border-radius:999px;background:#ffffff18;padding:10px 14px;font-size:13px;font-weight:700}.not-published-pill span{width:8px;height:8px;border-radius:50%;background:#ffd28d;box-shadow:0 0 0 4px #ffd28d30}.future-track-grid{margin-top:26px}.publication-status{display:flex;align-items:flex-start;gap:16px;margin:23px 0;padding:24px;border:1px solid #dce8e0;border-radius:18px;background:linear-gradient(120deg,#fff,#f5faf6);box-shadow:0 8px 24px #153a2c08}.status-icon{width:46px;height:46px;flex:none;display:grid;place-items:center;border-radius:14px;background:#eaf5ef;color:var(--green);font-size:27px}.publication-status .section-kicker{color:#579678}.publication-status h2{margin:3px 0 6px;color:var(--ink);font-size:20px}.publication-status p{margin:0;color:#68766f;font-size:13px;line-height:1.85}.back-link{display:inline-flex;margin:4px 0 14px;color:var(--green);font-size:13px;font-weight:700}.future-class{min-height:55vh}
@media(max-width:680px){.hero-actions{gap:8px}.future-cta{padding:8px 11px;font-size:10px}.not-published-pill{font-size:11px;padding:9px 11px}.publication-status{gap:12px;padding:17px 14px;border-radius:15px}.status-icon{width:39px;height:39px;border-radius:12px;font-size:23px}.publication-status h2{font-size:17px}.publication-status p{font-size:11px}.future-track-grid{margin-top:15px}}
.action.unpublished{max-width:190px;white-space:normal;text-align:center;line-height:1.4;background:#f5f6f5;border-color:#e3e7e4;color:#7f8984;cursor:default;font-size:10px}.action.unpublished span{color:#98a29c}.book-actions{flex-wrap:wrap}
@media(max-width:680px){.action.unpublished{max-width:155px;font-size:9px;padding:6px 7px}.book-actions{gap:5px}}
.ad-slot:empty{display:none}.footer-brand-copy{grid-column:1;grid-row:1}.footer-brand-copy strong{display:block;font-size:17px}.footer-brand-copy p{margin:3px 0 0;color:#c1d9cc;font-size:12px}.footer-links{grid-column:2;grid-row:1;display:flex;flex-direction:column;gap:3px;align-items:flex-end}.footer-links a{color:#d7eadf;font-size:12px}.footer-inner small{grid-row:2}.reading-guide{margin:23px 0;padding:22px 24px;border:1px solid var(--line);border-radius:18px;background:#fff}.reading-guide .section-kicker{color:#489779}.reading-guide h2{margin:4px 0 10px;color:var(--ink);font-size:20px}.reading-guide p{margin:8px 0 0;color:#5f6e66;font-size:13px;line-height:1.9}.policy{line-height:1.9}.policy h2{margin:26px 0 7px;color:var(--green-dark);font-size:18px}.policy p{font-size:14px}.policy a{color:var(--green);overflow-wrap:anywhere}.policy .policy-updated,.policy .policy-small{font-size:11px;color:#7b8981}.policy .policy-lead{font-size:17px;color:#324e41}.policy-home{display:inline-flex;margin-top:12px;font-weight:700}.footer-inner{grid-template-rows:auto auto}.footer-brand-copy p{max-width:560px}
@media(max-width:680px){.footer-brand-copy{grid-column:1;grid-row:1}.footer-links{grid-column:2;grid-row:1;align-items:flex-end}.footer-brand-copy strong{font-size:15px}.footer-brand-copy p{display:none}.footer-inner small{grid-row:2;font-size:9px}.reading-guide{margin:14px 0;padding:17px 15px;border-radius:15px}.reading-guide h2{font-size:17px}.reading-guide p{font-size:11px;line-height:1.85}.policy h2{font-size:16px}.policy p{font-size:12px}.policy .policy-lead{font-size:14px}}