body {
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, sans-serif;
    background: url('/images/back.png') no-repeat center center fixed;
    background-size: cover;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-form {
    background: mediumaquamarine;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.logo {
    margin-bottom: 20px;
}

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

input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 16px;
    box-sizing: border-box;
}

.login-button {
    width: 100%;
    padding: 12px;
    background: aqua;
    color: black;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s;
}

.login-button:hover {
    background: #00b867;
    color: white;
}

.alert {
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 6px;
    color: #721c24;
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
}

.install-prompt {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    padding: 15px 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

#install-button {
    background: aqua;
    color: black;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
}

#pwa-install-prompt {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: aqua;
    padding: 12px 24px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    z-index: 1000;
}

#install-button {
    background: none;
    border: 2px solid white;
    color: black;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}

#install-button:hover {
    background: #00b867;
    color: white;
}