html,body,div,span,applet,object,iframe,h1,h2,h3,h4,h5,h6,p,blockquote,pre,a,abbr,acronym,address,big,cite,code,del,dfn,em,img,ins,kbd,q,s,samp,small,strike,strong,sub,sup,tt,var,b,u,i,center,dl,dt,dd,ol,ul,li,fieldset,form,label,legend,table,caption,tbody,tfoot,thead,tr,th,td,article,aside,canvas,details,embed,figure,figcaption,footer,header,hgroup,menu,nav,output,ruby,section,summary,time,mark,audio,video{margin:0;padding:0;border:0;font-size:100%;font:inherit;vertical-align:baseline}article,aside,details,figcaption,figure,footer,header,hgroup,menu,nav,section{display:block}body{line-height:1}ol,ul{list-style:none}blockquote,q{quotes:none}blockquote:before,blockquote:after,q:before,q:after{content:"";content:none}table{border-collapse:collapse;border-spacing:0}body{background-color:#393e46}#app{max-width:800px;margin:80px auto;align-self:center}.book-details{background-color:#fff;display:flex;flex-direction:row;gap:40px;padding:20px;margin-bottom:40px;border-radius:15px}.book-cover{min-width:200px;width:200px;height:300px;background:linear-gradient(to bottom right,#1e3c72,#2a5298);color:#fff;padding:20px;box-shadow:0 6px 18px #0003;display:flex;flex-direction:column;justify-content:space-between;border-radius:6px}.title{font-size:28px;font-weight:700;line-height:1.2}.author{font-size:15px;text-align:right;margin-top:auto;opacity:.9}.book-info{display:flex;flex-direction:column;flex-grow:1}h2{font-size:35px}.author-name{padding-top:6px;font-size:16px}.rating{padding-top:6px}.pricing{display:flex;flex-direction:row;justify-content:space-around}.price-card{border:1px solid grey;border-radius:5px;padding:10px;min-width:80px;display:flex;flex-direction:column;align-items:center;transition:box-shadow .2s ease,transform .2s ease;cursor:pointer}.price-card:hover{box-shadow:0 4px 12px #0003;transform:translateY(-2px)}.price-card h3{font-weight:700;font-size:16px}.price-card p{font-size:14px}.genre-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(40px,1fr));gap:20px;padding:15px 5px}.genre-card{background-color:#f4f4f8;border-radius:10px;padding:20px 10px;text-align:center;font-family:sans-serif;font-size:14px;box-shadow:0 2px 4px #0000001a;transition:transform .2s,box-shadow .2s;cursor:pointer}.genre-card:hover{transform:translateY(-4px);box-shadow:0 6px 12px #00000026}.genre-card span{font-size:24px;display:block;margin-bottom:6px}@media (max-width: 768px){.book-details{flex-direction:column;align-items:center;gap:20px;padding:25px}.book-cover{width:90%;height:200px;min-width:unset}.title{font-size:22px}.author{font-size:14px;text-align:left}.book-info h2{font-size:24px}.pricing{flex-direction:column;gap:10px;align-items:stretch}.price-card{width:auto}.genre-grid{grid-template-columns:repeat(2,1fr)}#app{margin:40px 15px}}@media (max-width: 480px){.title{font-size:18px}.author{font-size:12px}.book-info h2{font-size:20px}.genre-card{padding:12px 6px;font-size:12px}.genre-card span{font-size:20px}}