body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #2f2d3c;
    font-family: Arial, sans-serif;
}

.container {
    position: relative;
    width: 100%;
    max-width: 600px;
    padding: 20px;
}

.form-container {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

textarea {
    width: 100%;
    min-height: 150px;
    padding: 15px;
    border: none;
    border-radius: 5px;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 16px;
    resize: vertical;
    margin-bottom: 15px;
    box-sizing: border-box;
}

textarea::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

button {
    float: right;
    padding: 10px 30px;
    background-color: #00e5c7;
    border: none;
    border-radius: 5px;
    color: white;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #00c4aa;
}

.spinner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 50px;
    height: 50px;
    border: 5px solid rgba(255, 255, 255, 0.1);
    border-top: 5px solid #00e5c7;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.hidden {
    display: none;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}