/* Reset some basic styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f0f4f8;
    font-family: 'Roboto', sans-serif;
}

.container {
    text-align: center;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    background-color: #ffffff;
    max-width: 400px;
    width: 90%;
    margin: 20px;
    transition: all 0.3s ease;
}

.container:hover {
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.2);
}

h1 {
    font-size: 28px;
    margin-bottom: 20px;
    color: #333333;
}

.input-group {
    position: relative;
    margin-bottom: 20px;
}

.input-group input {
    width: 100%;
    padding: 15px 10px;
    border: 2px solid #ccc;
    border-radius: 10px;
    font-size: 16px;
    transition: border-color 0.3s;
}

.input-group input:focus {
    border-color: #007bff;
    outline: none;
}

.input-group input::placeholder {
    color: transparent;
}

.input-group label {
    position: absolute;
    left: 15px;
    top: 15px;
    background: #ffffff;
    padding: 0 5px;
    color: #aaa;
    font-size: 14px;
    pointer-events: none;
    transition: all 0.3s;
}

.input-group input:focus + label,
.input-group input:not(:placeholder-shown) + label {
    top: -10px;
    font-size: 12px;
    color: #007bff;
}

button {
    width: 100%;
    padding: 15px;
    margin: 10px 0;
    border: none;
    border-radius: 10px;
    font-size: 18px;
    background-color: #007bff;
    color: #ffffff;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.3s;
}

button:hover {
    background-color: #0056b3;
    transform: scale(1.05);
}

#qrCodeCard {
    margin-top: 20px;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    background-color: #ffffff;
    display: none;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

#downloadVCardButton {
    margin-top: 20px;
    background-color: #28a745;
    transition: background-color 0.3s, transform 0.3s;
}

#downloadVCardButton:hover {
    background-color: #218838;
    transform: scale(1.05);
}