body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #1abc9c, #3498db);
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    color: #ecf0f1;
}

.container {
    width: 90%;
    max-width: 600px;
    background: #ffffff;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    text-align: center;
}

h1 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #2c3e50;
}

.options {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    font-weight: bold;
    color: #34495e;
    cursor: pointer;
    position: relative;
}

.radio-label input {
    display: none;
}

.radio-label .custom-radio {
    width: 20px;
    height: 20px;
    border: 2px solid #3498db;
    border-radius: 50%;
    display: inline-block;
    transition: background 0.3s ease;
}

.radio-label input:checked + .custom-radio {
    background: #3498db;
}

label {
    margin-top: 15px;
    font-weight: bold;
    color: #34495e;
}

textarea, select {
    width: 100%;
    margin-top: 5px;
    padding: 12px;
    font-size: 1rem;
    border-radius: 8px;
    border: 1px solid #bdc3c7;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

textarea:focus, select:focus {
    border-color: #3498db;
    box-shadow: 0 0 10px rgba(52, 152, 219, 0.5);
    outline: none;
}

textarea {
    resize: none;
    height: 120px;
}

button {
    margin-top: 20px;
    padding: 15px 30px;
    font-size: 1.2rem;
    font-weight: bold;
    color: #ffffff;
    background: #3498db;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

button:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

button:focus {
    outline: none;
}

button.copied {
    background: #2ecc71 !important;
}

textarea[readonly] {
    background: #ecf0f1;
    cursor: not-allowed;
}