body {
    margin: 0;
    padding: 0;
    background: #17212b;
    color: white;
    font-family: Arial, sans-serif;
}

.container {
    padding: 20px;
}

h1 {
    margin-bottom: 5px;
}

.subtitle {
    color: #9db2c8;
    margin-bottom: 25px;
}

.card {
    background: #1f2c3a;
    padding: 20px;
    border-radius: 14px;
    margin-bottom: 20px;
}

.main-btn {
    width: 100%;
    border: none;
    border-radius: 12px;
    padding: 15px;
    font-size: 16px;
    cursor: pointer;
    margin-top: 10px;

    background: #2ea6ff;
    color: white;
}

.secondary {
    background: #32485f;
}

.hidden {
    display: none;
}