body {
    background: #0d0d0d;
    margin: 0;
    color: #fff;
    font-family: "Segoe UI", sans-serif;
}

header {
    background: linear-gradient(90deg, #00eaff, #0073ff);
    padding: 20px;
    font-size: 26px;
    font-weight: bold;
    text-align: center;
    color: #000;
}

.container {
    width: 90%;
    max-width: 900px;
    margin: auto;
    margin-top: 50px;
    background: #171717;
    padding: 25px;
    border-radius: 12px;
    border: 1px solid #00eaff;
    box-shadow: 0 0 25px #00eaff80;
}

input {
    padding: 13px;
    width: 100%;
    font-size: 16px;
    border-radius: 8px;
    outline: none;
    border: 2px solid #00eaff;
    background: #111;
    color: #fff;
}

button {
    margin-top: 20px;
    width: 100%;
    padding: 15px;
    font-size: 19px;
    background: linear-gradient(90deg, #00eaff, #0073ff);
    border: none;
    color: #000;
    font-weight: bold;
    cursor: pointer;
    border-radius: 8px;
    transition: .2s;
}

button:hover {
    transform: scale(1.03);
    box-shadow: 0 0 20px #00eaff;
}

.output {
    background: #000;
    padding: 15px;
    border-radius: 8px;
    margin-top: 25px;
    border: 1px solid #444;
    max-height: 450px;
    overflow-y: auto;
    font-size: 15px;
    color: #0f0;
}

.download {
    display: block;
    margin-top: 20px;
    padding: 15px;
    background: #00ff62;
    font-size: 18px;
    text-align: center;
    border-radius: 8px;
    color: #000;
    text-decoration: none;
    font-weight: bold;
}