/* EBOOK FASTA v1.4.17 | WhatsApp-inspired unified marketplace */
:root{--sc-navy:#122b60;--sc-blue:#264790;--sc-accent:#e58013;--sc-ink:#172132;--sc-muted:#667386;--sc-line:#e3e8f0;--sc-shadow:0 18px 55px rgba(27,48,93,.09)}
.sc-shell{width:min(1272px,calc(100% - 48px));margin:0 auto 70px;color:var(--sc-ink)}.sc-shell h1,.sc-shell h2,.sc-shell h3{letter-spacing:-.035em}.sc-top-strip{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:13px 0;color:#50627b;font-size:12px;font-weight:700}.sc-top-strip a{color:var(--sc-blue)}.sc-eyebrow{display:block;letter-spacing:.13em;text-transform:uppercase;color:var(--sc-blue);font-size:11px;font-weight:900;margin-bottom:10px}.sc-intro{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(280px,.66fr);gap:56px;align-items:center;padding:58px clamp(22px,5vw,65px);border-radius:26px;background:linear-gradient(120deg,#e9f1fc,#f8fafc 75%);overflow:hidden;position:relative}.sc-intro:before{content:"";position:absolute;width:360px;height:360px;border-radius:50%;right:-200px;top:-160px;border:56px solid #d9e6fa;opacity:.8}.sc-intro-copy{position:relative;z-index:1}.sc-intro h1{font-size:clamp(34px,4.1vw,62px);line-height:1.09;max-width:720px;margin:0 0 17px}.sc-intro h1 em{color:var(--sc-blue);font-style:normal}.sc-intro-copy>p{font-size:15px;line-height:1.75;color:#5c6c82;max-width:600px}.sc-intro-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}.sc-primary,.sc-outline,.sc-filter-btn,.sc-buy,.sc-add{display:inline-flex;align-items:center;justify-content:center;gap:7px;border-radius:11px;padding:12px 18px;font-weight:800;font-size:13px;text-decoration:none;cursor:pointer;transition:transform .15s,background .15s}.sc-primary,.sc-filter-btn{background:#214c9e;border:1px solid #214c9e;color:#fff!important}.sc-primary:hover,.sc-filter-btn:hover{background:#173e87;transform:translateY(-1px)}.sc-outline{border:1px solid #d5dfec;color:var(--sc-blue)!important;background:#fff}.sc-outline:hover{background:#edf3fc}.sc-intro-stats{display:flex;gap:25px;flex-wrap:wrap;color:#64748b;font-size:12px;margin-top:29px}.sc-intro-stats strong{font-weight:900;color:#193f85;font-size:16px}.sc-preview{position:relative;max-width:410px;width:100%;padding:19px;background:#fff;border:1px solid #e5ebf6;border-radius:24px;box-shadow:0 28px 75px rgba(31,66,118,.14)}.sc-preview-header{display:flex;justify-content:space-between;border-bottom:1px solid #edf1f7;padding:0 0 16px;font-size:12px;color:#637083}.sc-preview-header b{color:#194585}.sc-preview-title{font-size:17px;font-weight:850;margin:17px 0}.sc-preview-book{display:flex;align-items:center;gap:13px;padding:10px 0;border-top:1px solid #f0f3f8}.sc-preview-book>span:first-child{width:51px;height:66px;border-radius:9px;overflow:hidden;flex:none;background:#f2f5fa}.sc-preview-book img{width:100%;height:100%;object-fit:cover}.sc-preview-book div:nth-child(2){min-width:0;flex:1}.sc-preview-book strong{display:block;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sc-preview-book small{display:block;color:#556b89;margin-top:3px}.sc-preview-plus{font-weight:bold;color:#fff;background:#1fa469;display:grid;place-items:center;width:28px;height:28px;border-radius:8px}.sc-catbar{display:flex;gap:10px;overflow:auto;padding:20px 0 8px;scrollbar-width:thin}.sc-catpill{flex:none;padding:10px 15px;border:1px solid #dce4ef;border-radius:999px;font-size:12px;font-weight:750;color:#385071;text-decoration:none;background:#fff}.sc-catpill small{color:#8d9bb0;padding-left:6px}.sc-catpill.active,.sc-catpill:hover{background:#173c81;color:#fff}.sc-catalogue-section{margin-top:50px;scroll-margin-top:95px}.sc-section-header{display:flex;align-items:end;justify-content:space-between;gap:15px;margin-bottom:18px}.sc-section-header h2{font-size:clamp(24px,2.7vw,32px);margin:0 0 6px}.sc-section-header p{font-size:13px;color:var(--sc-muted);margin:0}.sc-section-header .sc-outline{white-space:nowrap}.sc-see-all{font-weight:800;color:#1a995b;text-decoration:none;white-space:nowrap;font-size:14px}.sc-filters{display:grid;grid-template-columns:minmax(150px,1.5fr) repeat(3,minmax(110px,.7fr)) auto;gap:9px;margin:20px 0 16px}.sc-filters input,.sc-filters select,.sc-checkout-form input,.sc-checkout-form select{width:100%;min-width:0;min-height:44px;background:#fff;border:1px solid #dce4ee;border-radius:10px;padding:10px 12px;font-size:13px;color:#22314a}.sc-search{position:relative}.sc-search input{padding-left:35px}.sc-search span{position:absolute;top:6px;left:12px;font-size:23px;color:#98a8bd}.sc-results{font-size:13px;color:var(--sc-muted);margin:11px 0}.sc-results a{margin-left:14px;color:#214c9e;font-weight:800}.sc-books-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:17px}.sc-product{min-width:0;background:#fff;border:1px solid #e2e8f1;border-radius:17px;overflow:hidden;box-shadow:0 4px 22px rgba(22,42,83,.045);display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}.sc-product:hover{box-shadow:var(--sc-shadow);transform:translateY(-3px)}.sc-product-cover{background:#e9eff7;display:flex;justify-content:center;align-items:center;aspect-ratio:5/4;overflow:hidden;text-decoration:none;padding:12px}.sc-product-cover>img{height:100%;width:100%;object-fit:contain;filter:drop-shadow(0 5px 10px rgba(10,20,40,.12))}.sc-cover-fallback{width:100%;height:100%;background:linear-gradient(150deg,#102e65,#376dcc);border-radius:9px;color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:14px;gap:12px;text-align:center}.sc-cover-fallback span{font-weight:900;font-size:15px;background:#ffffff20;border-radius:100px;padding:6px}.sc-cover-fallback strong{font-size:13px;line-height:1.3}.sc-product-data{display:flex;flex-direction:column;gap:6px;padding:15px;flex:1}.sc-product-data>small{color:#248964;font-weight:850;font-size:10px;text-transform:uppercase;letter-spacing:.02em}.sc-product-title{color:#172842;font-size:14px;font-weight:850;line-height:1.4;min-height:40px;text-decoration:none;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.sc-product-author{font-size:11px;color:#748298;min-height:16px}.sc-pricing{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin:8px 0 10px}.sc-price{font-size:15px;color:#183e85}.sc-old{font-size:11px;color:#98a5b6;white-space:nowrap;text-decoration:line-through}.sc-discount{background:#e9f8f0;border-radius:5px;color:#008957;font-weight:900;font-size:10px;padding:3px 6px}.sc-actions{display:flex;gap:6px;margin-top:auto}.sc-add{flex:1;padding:9px 8px;font-size:12px;background:#eaf2ff;border:1px solid #dce8fc;color:#183f84}.sc-add.is-added{background:#e4f6ec;color:#138556;border-color:#caebd8}.sc-buy{flex:1;padding:9px 8px;font-size:12px;background:#1a9c62;color:white;text-align:center}.sc-buy:hover{background:#13844f}.sc-pages{display:flex;gap:7px;justify-content:center;margin:25px 0}.sc-pages a{padding:8px 14px;border:1px solid #dbe4ef;border-radius:8px;background:#fff;text-decoration:none;color:#1a3e80}.sc-pages a.active{background:#1a3e80;color:white}.sc-author-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.sc-author{display:flex;align-items:center;gap:11px;padding:15px;background:white;border:1px solid var(--sc-line);border-radius:13px;text-decoration:none;color:#172841;flex-wrap:wrap}.sc-author>span:first-child{display:grid;place-items:center;width:43px;height:43px;border-radius:50%;background:#e5edfa;color:#173e87;font-weight:900;font-size:17px}.sc-author strong{flex:1;font-size:12px;min-width:80px}.sc-author small{width:100%;color:var(--sc-muted);padding-left:55px}.sc-verified{display:inline-grid;place-items:center;border-radius:50%;background:#13a0e4;color:#fff;width:17px;height:17px}.sc-bottom-note{display:flex;justify-content:space-between;align-items:center;gap:22px;background:#113269;color:#fff;border-radius:20px;padding:28px;margin-top:50px}.sc-bottom-note h2{color:white;margin-bottom:6px}.sc-bottom-note p{color:#c7d6f1;max-width:650px;margin:0}.sc-bottom-note .sc-primary{background:#f19b24;border-color:#f19b24;white-space:nowrap}.sc-empty{padding:40px;background:#fff;border:1px dashed #cbd8e9;border-radius:14px}.sc-floating-cart{position:fixed;right:24px;bottom:25px;display:flex;align-items:center;gap:5px;background:#173f87;border:0;color:#fff;box-shadow:0 11px 32px #173f8760;border-radius:999px;padding:13px 18px;cursor:pointer;font-weight:850;z-index:100;font-size:20px}.sc-floating-cart small{font-size:13px}.sc-cart-count{background:#f49c28;color:#111a28;border-radius:999px;padding:2px 7px;font-size:11px;min-width:24px;text-align:center}.sc-cart-open{overflow:hidden}.sc-drawer-backdrop{position:fixed;inset:0;background:#08172899;z-index:210}.sc-cart-drawer{position:fixed;inset:0 0 0 auto;width:min(430px,100%);background:#fff;z-index:211;box-shadow:-20px 0 60px #121f3540;display:flex;flex-direction:column}.sc-cart-drawer[hidden],.sc-drawer-backdrop[hidden]{display:none!important}.sc-cart-header{padding:24px;border-bottom:1px solid var(--sc-line);display:flex;align-items:center;justify-content:space-between}.sc-cart-header small{color:#183f82;font-weight:850;letter-spacing:.09em}.sc-cart-header h2{margin:4px 0}.sc-close{background:#f0f4fa;border:0;border-radius:10px;width:38px;height:38px;cursor:pointer}.sc-cart-items{padding:16px 22px;overflow:auto;flex:1}.sc-drawer-item{display:flex;align-items:center;gap:10px;border-bottom:1px solid #eef1f5;padding:12px 0}.sc-drawer-cover{width:54px;height:68px;flex:none;background:#edf2fa;border-radius:8px;display:grid;place-items:center;font-size:24px;overflow:hidden}.sc-drawer-cover img{width:100%;height:100%;object-fit:contain}.sc-drawer-info{min-width:0;flex:1}.sc-drawer-info strong{font-size:12px;display:block}.sc-drawer-info small{display:block;color:#77869b;margin:4px 0}.sc-drawer-info b{font-size:12px;color:#173b82}.sc-drawer-item>button{background:none;border:0;color:#b43d42;font-size:19px;cursor:pointer}.sc-cart-footer{padding:20px 24px 28px;border-top:1px solid var(--sc-line)}.sc-cart-total{display:flex;justify-content:space-between;font-size:16px}.sc-cart-footer p{font-size:12px;color:#758298}.sc-checkout-btn{background:#18a365;color:#fff;border:0;border-radius:10px;padding:15px 18px;font-weight:850;width:100%;cursor:pointer}.sc-checkout-btn:disabled{opacity:.45;cursor:default}.sc-clear{display:block;border:0;background:none;color:#657991;margin:12px auto 0;cursor:pointer}.sc-product-page{display:grid;grid-template-columns:minmax(200px,.8fr) minmax(0,1.2fr);gap:60px;align-items:center;padding:65px 5vw;min-height:560px}.sc-large-cover{height:min(520px,80vw);background:#ebf1f9;border-radius:22px;padding:20px;display:grid;place-items:center}.sc-large-cover>img{max-width:100%;max-height:100%;object-fit:contain;filter:drop-shadow(0 18px 25px #152e4d35)}.sc-product-detail h1{font-size:clamp(29px,4vw,48px)}.sc-product-detail>p{color:#69798e;line-height:1.75}.sc-detail-price{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:24px 0}.sc-detail-price .sc-price{font-size:28px}.sc-detail-actions{display:flex;gap:10px;flex-wrap:wrap}.sc-help{font-size:12px!important;color:#667b94!important}.sc-checkout-head{padding:48px 0 10px}.sc-checkout-head h1{font-size:36px}.sc-checkout-head p{color:var(--sc-muted)}.sc-checkout-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.8fr);gap:20px;margin:16px 0 60px}.sc-checkout-form,.sc-checkout-summary,.sc-message{background:#fff;padding:26px;border-radius:18px;border:1px solid var(--sc-line);box-shadow:0 10px 35px #263f6410}.sc-checkout-form>p{color:var(--sc-muted);font-size:13px}.sc-checkout-form label{display:block;color:#263a55;font-size:12px;font-weight:800;margin:16px 0}.sc-checkout-form input,.sc-checkout-form select{display:block;margin-top:6px}.sc-checkout-form .sc-primary{width:100%;margin-top:10px}.sc-summary-item{display:flex;align-items:center;gap:10px;border-bottom:1px solid #edf0f5;padding:12px 0}.sc-small-cover{width:44px;height:58px;flex:none;border-radius:6px;overflow:hidden;background:#edf2f9}.sc-small-cover img{width:100%;height:100%;object-fit:contain}.sc-small-cover .sc-cover-fallback{font-size:7px}.sc-small-cover .sc-cover-fallback strong{font-size:7px}.sc-summary-item div:nth-child(2){flex:1;min-width:0}.sc-summary-item b{font-size:12px;display:block}.sc-summary-item small{font-size:11px;display:block;color:#8290a1}.sc-summary-item>strong{font-size:12px;white-space:nowrap;color:#1a3f84}.sc-summary-total{display:flex;align-items:center;justify-content:space-between;padding:22px 0 15px}.sc-checkout-summary>a{display:block;margin-top:23px;color:#214c9e}.sc-error{background:#fff0f1;color:#a8203e;padding:14px;border-radius:10px;border:1px solid #ffc9d2}.sc-message{max-width:700px;margin:50px auto;text-align:center}.sc-message .sc-primary{margin-top:15px}.sc-bank{text-align:left;background:#f0f5fc;padding:18px;border-radius:11px}.sc-no-items{text-align:center;padding:40px 6px;color:var(--sc-muted)}
@media(max-width:1100px){.sc-books-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.sc-filters{grid-template-columns:1fr 1fr 1fr}.sc-search{grid-column:span 3}.sc-filter-btn{grid-column:span 3}.sc-author-row{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:780px){.sc-intro{grid-template-columns:1fr;padding:30px 25px;gap:26px}.sc-preview{max-width:100%}.sc-books-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.sc-author-row{grid-template-columns:repeat(2,minmax(0,1fr))}.sc-product-page,.sc-checkout-grid{grid-template-columns:1fr;gap:22px}.sc-large-cover{height:380px}.sc-product-page{padding:32px 0}.sc-bottom-note{align-items:flex-start;flex-direction:column}}
@media(max-width:520px){.sc-shell{width:calc(100% - 24px)}.sc-top-strip{font-size:10px}.sc-intro h1{font-size:33px}.sc-intro-stats{gap:13px}.sc-books-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.sc-product-data{padding:10px}.sc-product-title{font-size:12px}.sc-product-cover{aspect-ratio:4/4.5;padding:7px}.sc-actions{flex-direction:column}.sc-add,.sc-buy{width:100%;padding:8px 6px}.sc-pricing{gap:4px}.sc-price{font-size:13px}.sc-filters{grid-template-columns:1fr 1fr}.sc-search{grid-column:span 2}.sc-filter-btn{grid-column:span 2}.sc-section-header h2{font-size:23px}.sc-section-header p{font-size:11px}.sc-author-row{grid-template-columns:1fr}.sc-checkout-form,.sc-checkout-summary{padding:17px}.sc-floating-cart{right:14px;bottom:14px}.sc-intro-stats strong{font-size:13px}}
/* Mobile: WhatsApp native-catalogue inspired compact item list and prominent add control. */
@media(max-width:520px){.sc-books-grid{grid-template-columns:1fr!important}.sc-product{flex-direction:row;min-height:123px;align-items:stretch}.sc-product-cover{width:102px;min-width:102px;aspect-ratio:auto;padding:9px}.sc-product-data{flex:1;min-width:0;padding:11px 10px;gap:3px}.sc-product-title{font-size:13px;min-height:0;-webkit-line-clamp:2}.sc-product-author{font-size:10px}.sc-pricing{margin:3px 0}.sc-actions{flex-direction:row}.sc-add,.sc-buy{padding:8px 6px;font-size:11px}.sc-add span{display:none}.sc-add{flex:0 0 39px;font-size:18px}.sc-buy{flex:1}.sc-product:hover{transform:none}}

.sc-downloads{margin:19px auto;padding:18px;background:#f3f7fc;border-radius:12px;display:grid;gap:10px}.sc-downloads .sc-primary{margin:0;white-space:normal;overflow-wrap:anywhere}

/* v1.4.17 language control and verified seller marks */
.sc-language-switch{margin-left:auto;display:inline-flex;gap:7px;align-items:center;white-space:nowrap;font-size:12px}.sc-language-switch a{padding:3px 5px;border-radius:6px}.sc-language-switch a[aria-current="true"]{font-weight:850;text-decoration:underline}.sc-product-author .identity-verified,.sc-product-detail .identity-verified,.sc-author .identity-verified,.sc-drawer-info .identity-verified{display:inline-flex;vertical-align:middle;margin-left:5px;width:19px;height:19px}.sc-product-author .identity-verified svg,.sc-product-detail .identity-verified svg,.sc-author .identity-verified svg,.sc-drawer-info .identity-verified svg{width:100%;height:100%}@media(max-width:640px){.sc-language-switch{margin:6px 0 0;order:3;width:100%;justify-content:flex-end}}

.sc-verified-seal{display:inline-grid;place-items:center;width:18px;height:18px;margin-left:5px;vertical-align:middle;border-radius:50%;background:#1597e5;color:white;font-weight:900;clip-path:polygon(50% 0%,61% 8%,75% 4%,82% 18%,96% 25%,92% 40%,100% 50%,92% 61%,96% 75%,82% 82%,75% 96%,60% 92%,50% 100%,39% 92%,25% 96%,18% 82%,4% 75%,8% 60%,0% 50%,8% 39%,4% 25%,18% 18%,25% 4%,40% 8%)}