body {margin:0; font-family:'Montserrat',sans-serif; background:#0a0b10; color:#f5f5f7;}
.hero {position:relative; height:100vh; display:flex; justify-content:center; align-items:center; text-align:center; color:#fff;}
.hero .overlay {position:absolute; inset:0; background:url('images/poster-900.png') center/cover no-repeat; filter:brightness(0.4) blur(2px); z-index:-1;}
.hero .content {z-index:2;}
.hero h1 {font-size:3em; margin:0 0 10px;}
.hero p {font-size:1.2em; color:#ccc;}
.btn {background:linear-gradient(90deg,#d1a046,#a87825); color:#000; padding:12px 24px; border-radius:6px; font-weight:700; text-decoration:none; display:inline-block; margin-top:20px;}
.catalog, .about {padding:60px 10%; text-align:center;}
.books {display:flex; justify-content:center; gap:20px; flex-wrap:wrap;}
.book {background:#14141c; padding:20px; border-radius:10px; width:250px;}
.book img {width:100%; border-radius:8px;}
footer {text-align:center; padding:40px; color:#aaa; font-size:0.9em;}