* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    min-height: 100vh;
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
}

.container {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
    position: relative;
}

h1 {
    margin-bottom: 20px;
    font-size: 24px;
}

form {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.form-group {
    width: 100%;
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    text-align: left;
}

input, button {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
}

button {
    background-color: #ed741d;
    color: white;
    border: none;
    cursor: pointer;
    align-self: center;
}

button:hover {
    background-color: #c5c3c1;
}

#message {
    margin-top: 20px;
    color: red;
}

.loading-screen {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.8);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.loading-screen.active {
    display: flex;
}

.loading-spinner {
    border: 8px solid #f3f3f3;
    border-top: 8px solid orange;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
}

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

.footer {
    position: fixed;
    left: 0;
    bottom: 0;
    width: 100%;
    text-align: center;
}