body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    color: white;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow: auto;
    position: relative;
}

.logo {
    position: fixed;
    top: 20px;
    left: 20px;
    width: 100px;
    height: auto;
    z-index: 10;
}

.container {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    max-width: 800px;
    width: 90%;
    margin: 20px;
}

h1 {
    font-size: clamp(2em, 5vw, 3em);
    margin-bottom: 20px;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

button {
    background: linear-gradient(45deg, #007bff, #28a745);
    border: none;
    color: white;
    padding: 15px 30px;
    font-size: clamp(1em, 3vw, 1.2em);
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    margin: 10px;
}

button:hover {
    transform: scale(1.1);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.form-container {
    display: none;
    margin-top: 20px;
}

iframe {
    width: 100%;
    height: 600px;
    border: none;
    border-radius: 10px;
}

.hidden {
    display: none;
}

.progress-container {
    width: 100%;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    margin: 20px 0;
    height: 20px;
    display: none;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(45deg, #007bff, #28a745);
    border-radius: 10px;
    width: 0%;
    transition: width 0.1s;
}