body{
    margin:0;
    font-family:Pretendard,Arial,sans-serif;
    background:#0f172a;
    color:#e5e7eb;
}
.container{
    max-width:900px;
    margin:40px auto;
    padding:20px;
}
h1{
    text-align:center;
    font-size:36px;
    margin-bottom:6px;
}
.subtitle{
    text-align:center;
    color:#9ca3af;
    margin-bottom:30px;
}
.card{
    background:#020617;
    border:1px solid #1e293b;
    border-radius:18px;
    padding:20px;
    margin-bottom:25px;
}
.card h2{
    margin:0 0 12px;
    font-size:20px;
    color:#38bdf8;
}
textarea{
    width:100%;
    min-height:120px;
    background:#020617;
    border:1px solid #334155;
    border-radius:12px;
    padding:12px;
    color:#e5e7eb;
    resize:none;
}
input{
    width:100%;
    margin-bottom:10px;
    padding:10px;
    border-radius:10px;
    border:1px solid #334155;
    background:#020617;
    color:#e5e7eb;
}
.row textarea{min-height:90px}
button{
    width:100%;
    padding:14px;
    font-size:16px;
    border:none;
    border-radius:14px;
    background:linear-gradient(135deg,#22d3ee,#38bdf8);
    color:#020617;
    font-weight:bold;
    cursor:pointer;
}
button:hover{opacity:.9}