/* Basic Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f4f7f6;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-container {
    background-color: #ffffff;
    padding: 40px 30px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.header-section {
    text-align: center;
    margin-bottom: 30px;
}

.logo {
    max-width: 100px;
    margin-bottom: 15px;
    /* PRD के अनुसार ऊपर पैडिंग/मार्जिन */
    padding-top: 10px; 
}

.header-section h1 {
    font-size: 1.5rem;
    color: #333333;
}

.input-group {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
}

.input-group label {
    font-size: 0.9rem;
    color: #555555;
    margin-bottom: 5px;
    font-weight: 600;
}

.input-group input {
    padding: 10px;
    font-size: 1rem;
    border: 1px solid #cccccc;
    border-radius: 4px;
    outline: none;
    transition: border-color 0.3s;
}

.input-group input:focus {
    border-color: #0056b3;
}

/* PRD Section 7: Solid primary color button */
.btn-primary {
    width: 100%;
    padding: 12px;
    background-color: #0056b3;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
    margin-top: 10px;
}

.btn-primary:hover {
    background-color: #004494;
}

/* PRD Section 7: Error state */
.error-text {
    color: #dc3545;
    font-size: 0.85rem;
    margin-bottom: 15px;
    text-align: center;
}

.hidden {
    display: none;
}

/* PRD Section 7: Authorized personnel only warning */
.auth-warning {
    margin-top: 25px;
    text-align: center;
    font-size: 0.8rem;
    color: #888888;
}