* {
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    height: 100vh;
    background: linear-gradient(135deg, #43cea2, #185a9d);
    display: flex;
    justify-content: center;
    align-items: center;
}

.card {
    background: white;
    width: 360px;
    padding: 30px;
    border-radius: 18px;
    text-align: center;
    box-shadow: 0 20px 45px rgba(0,0,0,.25);
}

.card h1 {
    margin-bottom: 5px;
}

.card p {
    font-size: 14px;
    color: #555;
    margin-bottom: 20px;
}

.upload {
    display: block;
    border: 2px dashed #185a9d;
    padding: 20px;
    border-radius: 12px;
    cursor: pointer;
    margin-bottom: 20px;
    transition: .3s;
}

.upload:hover {
    background: #eef6ff;
}

.upload input {
    display: none;
}

button {
    width: 100%;
    padding: 12px;
    background: #185a9d;
    border: none;
    color: white;
    border-radius: 10px;
    font-size: 16px;
    cursor: pointer;
}

button:hover {
    background: #134b82;
}

#status {
    margin-top: 15px;
    font-size: 13px;
}

#fileName {
    margin-bottom: 15px;
    font-size: 14px;
    color: #185a9d;
    font-weight: 500;
}