@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;800&family=Noto+Serif+Bengali:wght@400;700&display=swap";:root{--color-bg: #fdfbf7;--color-card-bg: #ffffff;--color-text-main: #111111;--color-text-muted: #666666;--color-accent: #000000;--color-border: #e5e5e5;--font-main: "Inter", sans-serif;--font-bengali: "Noto Serif Bengali", serif}*{box-sizing:border-box}body{margin:0;font-family:var(--font-main);background-color:var(--color-bg);color:var(--color-text-main);line-height:1.7;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,h5,h6{font-family:var(--font-bengali);color:var(--color-text-main);margin-top:0;font-weight:700;line-height:1.3}a{color:var(--color-text-main);text-decoration:none;transition:color .2s ease}a:hover{color:var(--color-text-muted)}.container{max-width:1000px;margin:0 auto;padding:0 1.5rem}.btn{display:inline-block;padding:.8rem 1.5rem;background:var(--color-btn-bg);color:var(--color-btn-text);font-weight:600;border-radius:4px;border:1px solid var(--color-text-main);font-size:.9rem;cursor:pointer;transition:all .2s ease}.btn:hover{background:transparent;color:var(--color-text-main)}.btn-outline{background:transparent;color:var(--color-text-main);border:1px solid var(--color-border)}.btn-outline:hover{border-color:var(--color-text-main)}.btn-profile{background:var(--color-btn-profile-bg);color:var(--color-btn-profile-text);border:1px solid var(--color-accent)}.btn-profile:hover{background:transparent;color:var(--color-text-main);border-color:var(--color-text-main)}nav{padding:2rem 0;background-color:var(--color-header-bg);border-bottom:1px solid var(--color-border)}.nav-inner{display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:800;font-family:var(--font-main);letter-spacing:-.02em}.nav-links{display:flex;gap:1.5rem}.nav-links a{font-size:.9rem;text-transform:uppercase;letter-spacing:.05em;font-weight:var(--font-weight-nav);color:var(--color-nav-text)}.hero-section{padding:4rem 0 6rem}.hero-layout{display:flex;flex-direction:column;gap:3rem;align-items:center}@media(min-width:768px){.hero-layout{flex-direction:row;align-items:flex-start}}.hero-image-wrapper{flex:0 0 300px}.author-photo{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:0;background-color:#f5f5f5;filter:grayscale(100%);transition:filter .3s}.author-photo:hover{filter:grayscale(0%)}.hero-bio{flex:1}.hero-bio h1{font-size:3rem;margin-bottom:.5rem;font-family:var(--font-bengali)}.hero-subtitle{font-size:1.25rem;color:var(--color-text-muted);margin-bottom:2rem;font-family:var(--font-bengali)}.bio-text{font-size:1rem;color:#444;margin-bottom:2rem;white-space:pre-line}.search-container{margin-bottom:3rem;position:relative}.search-input{width:100%;padding:1rem 1rem 1rem 3rem;font-size:1rem;border:1px solid var(--color-border);border-radius:4px;background:var(--color-search-bg);transition:all .2s}.search-input:focus{outline:none;background:var(--color-search-bg);border-color:#999}.search-icon{position:absolute;left:1rem;top:50%;transform:translateY(-50%);color:#999}.book-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;margin-bottom:4rem}@media(min-width:640px){.book-grid{grid-template-columns:repeat(3,1fr)}}@media(min-width:1024px){.book-grid{grid-template-columns:repeat(4,1fr)}}.book-card{display:flex;flex-direction:column;text-decoration:none;background:#fff;border-radius:8px;overflow:hidden;transition:transform .3s ease,box-shadow .3s ease;height:100%;border:1px solid transparent;background-color:var(--color-card-bg)}.book-card:hover{transform:translateY(-5px);box-shadow:0 10px 20px #00000014;border-color:#f0f0f0}.book-card-image-wrapper{aspect-ratio:2/3;background:#f0f0f0;overflow:hidden;position:relative;border-radius:4px;margin-bottom:0}.book-card-image{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}.book-card:hover .book-card-image{transform:scale(1.05)}.book-card-info{padding:1rem .5rem;text-align:center}.book-card-title{font-size:1.1rem;margin-bottom:.5rem;margin-top:0;font-family:var(--font-bengali);line-height:1.4;color:var(--color-text-main)}.book-card-meta{font-size:.85rem;color:var(--color-text-muted);font-weight:500;font-family:var(--font-bengali)}.meta-separator{margin:0 4px;opacity:.5}footer{padding:3rem 0;border-top:1px solid var(--color-border);margin-top:auto;text-align:center;font-size:.9rem;background-color:var(--color-footer-bg);color:var(--color-text-muted)}.social-links{display:flex;justify-content:center;gap:1.5rem;margin-bottom:1.5rem}.social-links a:hover{color:var(--color-text-main)}.book-detail-page{padding-top:2rem;padding-bottom:4rem}.secondary-btn{display:inline-flex;align-items:center;gap:8px;padding:.5rem 1rem;margin-bottom:2rem;background-color:var(--color-secondary-btn-bg);color:var(--color-secondary-btn-text);border:1px solid var(--color-border)}.book-detail-main{display:grid;grid-template-columns:1fr;gap:3rem;margin-bottom:4rem}@media(min-width:768px){.book-detail-main{grid-template-columns:350px 1fr}}.book-detail-image .image-aspect-wrapper{aspect-ratio:2/3;background:#f5f5f5;overflow:hidden;display:flex;align-items:center;justify-content:center}.book-detail-image img{width:100%;height:100%;object-fit:cover}.placeholder-text{color:#999;font-weight:600}.detail-title{font-size:2.5rem;margin-bottom:.5rem}.detail-author{color:#666;margin-bottom:1.5rem;font-size:1.2rem;font-family:var(--font-bengali)}.action-buttons{display:flex;gap:1rem;margin-bottom:2rem}.buy-now-btn{display:inline-flex;align-items:center;gap:8px}.detail-section{margin-bottom:2rem}.detail-section h3{border-bottom:1px solid #eee;padding-bottom:.5rem;margin-bottom:1rem;font-size:1.25rem}.flap-text{white-space:pre-line;color:#444;line-height:1.8}.info-list{list-style:none;padding:0;color:#555}.info-list li{margin-bottom:.5rem}.related-books-section{border-top:1px solid #eee;padding-top:3rem}@media(max-width:768px){.desktop-only{display:none!important}.mobile-menu-toggle{display:block;background:none;border:none;color:var(--color-text-main);cursor:pointer;padding:.5rem}.mobile-sidebar{position:fixed;top:0;right:-100%;width:280px;height:100%;background:var(--color-bg);z-index:1000;transition:right .3s ease;box-shadow:-5px 0 15px #0000001a;display:flex;flex-direction:column;padding:2rem}.mobile-sidebar.open{right:0}.sidebar-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:3rem}.sidebar-header .logo{font-size:1.25rem}.sidebar-links{display:flex;flex-direction:column;gap:1.5rem}.sidebar-links a{font-size:1.1rem;font-weight:600}.sidebar-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#0000004d;z-index:999}.hero-layout{text-align:center}.hero-image-wrapper{flex:0 0 auto;width:50%!important;margin:0 auto}.hero-bio h1{text-align:center;font-size:2.2rem}.hero-links{justify-content:center;flex-wrap:wrap!important}.section-title{text-align:center}.book-detail-main{grid-template-columns:1fr;text-align:center}.book-detail-image{width:50%;margin:0 auto}.detail-title,.detail-author{text-align:center}.action-buttons{justify-content:center;flex-direction:column;align-items:center}.related-books-section>h3{text-align:center;margin-bottom:2rem}}@media(min-width:769px){.mobile-menu-toggle,.mobile-sidebar{display:none}}