body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f5f5f5;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}
.login-container {
    width: 90%;
    max-width: 400px;
    padding: 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
.logo {
    text-align: center;
    margin-bottom: 2rem;
}
.logo img {
    width: 120px;
    height: auto;
}
.form-group {
    margin-bottom: 1rem;
}
label {
    display: block;
    margin-bottom: 0.5rem;
    color: #333;
}
input {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    box-sizing: border-box;
    font-size: 16px;
}
.login-button {
    width: 100%;
    padding: 14px;
    background: #4CAF50;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    margin-top: 1rem;
}
.login-button:hover {
    background: #45a049;
}
.remember-me {
    display: flex;
    align-items: center;
    margin: 1rem 0;
}
.remember-me input {
    width: auto;
    margin-right: 8px;
}
.install-prompt {
    display: none;
    background: #4CAF50;
    color: white;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 1rem;
    text-align: center;
    cursor: pointer;
}
.install-prompt:hover {
    background: #45a049;
}