body {
    margin: 0;
    padding: 0;
    background: url('background.jpg') no-repeat center center fixed;
    background-size: cover;
    font-family: Arial, sans-serif;
    color: white;
}

/* camada escura por cima da imagem */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.65);
    z-index: -1;
}

/* container principal */
.container {
    width: 360px;
    margin: 120px auto;
    background: rgba(0, 0, 0, 0.85);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 0 30px rgba(0,0,0,0.9);
}

/* título */
h1 {
    margin-bottom: 20px;
    font-size: 28px;
}

/* inputs */
input {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border: none;
    border-radius: 6px;
}

/* botão principal */
button {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 6px;
    background: linear-gradient(45deg, #00aa55, #00ff88);
    color: black;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

button:hover {
    transform: scale(1.05);
}

/* botão download */
.download {
    margin-top: 15px;
    display: block;
    padding: 10px;
    background: #1f8bff;
    border-radius: 6px;
    color: white;
    text-decoration: none;
    font-weight: bold;
}

.download:hover {
    background: #3aa0ff;
}

/* status */
.status {
    margin-top: 20px;
    font-weight: bold;
    font-size: 16px;
}