body{
    margin:0;
    font-family:Pretendard,Arial,sans-serif;
    background:linear-gradient(180deg,#eef2f7,#dfe6ee);
    color:#222;
}
.container{
    max-width:1200px;
    margin:40px auto;
    padding:20px;
}
h1{
    text-align:center;
    font-size:42px;
    margin-bottom:6px;
}
.subtitle{
    text-align:center;
    color:#666;
    margin-bottom:30px;
}
.input-box{
    background:#fff;
    padding:20px;
    border-radius:18px;
    box-shadow:0 10px 30px rgba(0,0,0,.08);
    margin-bottom:40px;
}
textarea{
    width:100%;
    height:220px;
    border-radius:14px;
    border:1px solid #ddd;
    padding:14px;
    font-size:14px;
}
button{
    margin-top:15px;
    width:100%;
    padding:14px;
    font-size:16px;
    border:none;
    border-radius:14px;
    background:linear-gradient(135deg,#ff0055,#ff3366);
    color:#fff;
    cursor:pointer;
}
button:hover{opacity:.9}
.rank-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:20px;
}
.card{
    background:#fff;
    border-radius:20px;
    padding:20px;
    box-shadow:0 8px 24px rgba(0,0,0,.08);
}
.card h2{
    margin:0 0 12px;
}
.rank-item{
    display:flex;
    justify-content:space-between;
    padding:7px 0;
    border-bottom:1px solid #eee;
    font-size:14px;
}
.rank-item:last-child{border:none}