*{box-sizing:border-box}
body{margin:0;font-family:Arial;background:#f4f6fb}

.navbar{
display:flex;justify-content:space-between;
padding:15px 20px;
background:#4f46e5;color:#fff;
animation:slideDown .6s;
}
.navbar ul{display:flex;gap:15px;list-style:none}

.filters{
padding:10px;text-align:center;
}
.filters button{
padding:8px 15px;border:none;
border-radius:20px;
margin:5px;cursor:pointer;
background:#e0e7ff;
transition:.3s;
}
.filters button:hover{background:#4f46e5;color:#fff}

.books{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
gap:20px;padding:20px;
}

.book{
  background:#fff;
  border-radius:15px;
  padding:15px;
  text-align:center;
  box-shadow:0 10px 25px rgba(0,0,0,.1);
  transition:.3s;
}

.book:hover{transform:translateY(-5px)}

.book img{
  width:160px;
  height:240px;
  object-fit:cover;
  border-radius:10px;
  margin:auto;
  display:block;

}

.book a{
display:block;margin-top:8px;
padding:8px;border-radius:10px;
background:#4f46e5;color:#fff;
text-decoration:none;
}

@keyframes fadeUp{
from{opacity:0;transform:translateY(20px)}
to{opacity:1;transform:none}
}
@keyframes slideDown{
from{transform:translateY(-100%)}
to{transform:none}
}

.cover{
  width:160px;
  height:240px;
  object-fit:cover;
  border-radius:10px;
  display:block;
  margin:0 auto 10px;
}

/* O‘qish tugmasi */
.read-btn{
  display:block;
  width:160px;          /* muqova kengligi */
  margin:10px auto 0;
  padding:8px 0;
  background:#4f46e5;
  color:#fff;
  text-align:center;
  border-radius:8px;
  text-decoration:none;
  transition:.3s;
}
.read-btn:hover{
  background:#3730a3;
}
.book-card {
    width: 180px;
    padding: 10px;
    text-align: center;
}

.book-cover {
    width: 150px;      /* 4 sm */
    height: 225px;     /* 6 sm */
    object-fit: cover;
    border-radius: 8px;
    display: block;
    margin: 0 auto 10px;
    background: #f1f1f1;
}

.read-btn {
    display: inline-block;
    padding: 8px 22px;
    background: #4f46e5;
    color: #fff;
    border-radius: 20px;
    text-decoration: none;
    font-size: 14px;
}

.books {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 20px; /* MASOFA KAMAYDI */
    padding: 20px;
}

.book-card {
    background: #fff;
    border-radius: 14px;
    padding: 12px;
    text-align: center;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}

.book-cover {
    width: 150px;
    height: 225px; /* 4x6 nisbat */
    object-fit: cover;
    border-radius: 10px;
    margin: 0 auto 10px;
}

.read-btn {
    display: inline-block;
    margin-top: 10px;
    padding: 8px 20px;
    background: #4f46e5;
    color: #fff;
    border-radius: 20px;
    text-decoration: none;
    font-size: 14px;
}