:root{
    --pink:#ff6fae;
    --pink-dark:#f04f95;
    --blue:#74c7ff;
    --dark:#2f3550;
    --bg:#fffaf7;
    --card:#ffffff;
}

*{margin:0;padding:0;box-sizing:border-box;}

html{scroll-behavior:smooth;}

body{
    font-family:"Segoe UI",sans-serif;
    background:var(--bg);
    color:var(--dark);
    line-height:1.6;
}

.container{
    width:min(1200px,92%);
    margin:auto;
}

header{
    background:linear-gradient(135deg,#ffd7e8,#fff4fa);
    text-align:center;
    padding:60px 20px;
}

header h1{font-size:2.8rem;margin-bottom:.4rem;}
header p{font-size:1.1rem;}

.books{
    width:min(1300px,94%);
    margin:auto;
    padding:60px 20px;
}

.books h2{
    text-align:center;
    margin-bottom:40px;
}

.book-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:30px;
    align-items:stretch;
}

.book-card{
    background:var(--card);
    border-radius:20px;
    overflow:hidden;
    position:relative;
    display:flex;
    flex-direction:column;
    box-shadow:0 8px 20px rgba(0,0,0,.08);
    transition:.25s ease;
}

.book-card:hover{
    transform:translateY(-6px);
    box-shadow:0 14px 30px rgba(0,0,0,.15);
}

.book-card img{
    width:100%;
    display:block;
    transition:transform .35s;
}

.book-card:hover img{
    transform:scale(1.03);
}

.book-content{
    padding:20px;
    display:flex;
    flex-direction:column;
    flex:1;
}

.book-content h3{
    color:var(--pink);
    margin-bottom:12px;
}

.book-content p{
    flex:1;
    margin-bottom:20px;
}

.btn{
    display:inline-block;
    align-self:flex-start;
    margin-top:auto;
    padding:12px 24px;
    background:var(--pink);
    color:#fff;
    border-radius:30px;
    text-decoration:none;
    font-weight:600;
    transition:.2s;
}

.btn:hover{
    background:var(--pink-dark);
    transform:translateY(-2px);
    text-decoration:none;
}

.book-card.series::before{
    content:"SERIE";
    position:absolute;
    top:18px;
    left:-48px;
    width:170px;
    padding:8px 0;
    background:var(--pink);
    color:#fff;
    text-align:center;
    font-size:13px;
    font-weight:700;
    letter-spacing:2px;
    transform:rotate(-45deg);
    box-shadow:0 4px 12px rgba(0,0,0,.25);
    z-index:10;
}

.about{
    background:#fff;
    padding:60px 20px;
    text-align:center;
}

.about p{
    max-width:720px;
    margin:20px auto 0;
}

footer{
    background:var(--dark);
    color:#fff;
    text-align:center;
    padding:35px 20px;
}

.footer-links{
    margin-top:10px;
}

.footer-links a{
    color:#fff;
    text-decoration:none;
}

.footer-links a:hover{
    text-decoration:underline;
}

a{color:inherit;}

@media (max-width:768px){
    header h1{font-size:2.1rem;}
    .books,.about{padding:40px 18px;}
    .book-grid{gap:20px;}
}