body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 20px;
    background-image: url('images/background.jpg');
    background-size: 150% auto;
    background-position: -300px 100px;
    background-attachment: fixed;
    min-height: 100vh;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    background-color: rgba(255, 255, 255, 0.85);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(5px);
}

h1 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 30px;
    font-size: 24px;
}

.login-form {
    text-align: center;
}

input, select {
    width: 100%;
    padding: 12px;
    margin: 8px 0;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
    background-color: rgba(255, 255, 255, 0.9);
}

button {
    background-color: #3498db;
    color: white;
    padding: 12px 25px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin-top: 10px;
    margin-bottom: 15px;
}

button:hover {
    background-color: #2980b9;
}

#message {
    margin-top: 20px;
    padding: 15px;
    text-align: center;
    background: transparent;
}

#message p {
    margin: 0;
    padding: 10px;
}

#message p:not(.error) {
    color: #2c3e50;
    background-color: rgba(232, 244, 248, 0.85);
    border-radius: 4px;
    border-left: 4px solid #3498db;
}

#message .error {
    color: #e74c3c;
    background-color: rgba(255, 235, 235, 0.9);
    border-radius: 4px;
    border-left: 4px solid #e74c3c;
}

#phone-container {
    margin-top: 30px;
    text-align: center;
    margin-bottom: 20px;
}

h2 {
    color: #34495e;
    font-size: 20px;
    margin-bottom: 20px;
}

select {
    margin-bottom: 15px;
}

.header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    background-color: #2c3e50;
    color: white;
    border-radius: 8px;
    margin: 0 auto 30px;
    max-width: 600px;
    background-color: rgba(44, 62, 80, 0.9);
}

.header h1 {
    margin: 0;
    color: white;
    font-size: 28px;
}

.header .subtitle {
    margin: 5px 0 0;
    font-size: 16px;
    opacity: 0.9;
}

#update-message {
    margin-top: 20px;
    padding: 15px;
    text-align: center;
    background: transparent;
}

#update-message p {
    margin: 0;
    padding: 10px;
    color: #2c3e50;
    background-color: rgba(232, 244, 248, 0.85);
    border-radius: 4px;
    border-left: 4px solid #3498db;
}

#update-message .error {
    color: #e74c3c;
    background-color: rgba(255, 235, 235, 0.9);
    border-left: 4px solid #e74c3c;
}

#update-message .loading {
    color: #666;
    background-color: rgba(232, 244, 248, 0.85);
    border-radius: 4px;
    border-left: 4px solid #666;
    font-style: italic;
}

button:disabled {
    background-color: #95a5a6;
    cursor: not-allowed;
}