:root {
    --primary-color: #002b5b; /* Navy Blue */
    --secondary-color: #f9d949; /* Police Gold/Yellow */
    --text-color: #333;
    --bg-color: #f4f7f6;
    --card-bg: #ffffff;
    --accent-color: #d10000; /* Red for alerts */
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
}

.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: linear-gradient(135deg, var(--primary-color) 0%, #001f3f 100%);
}

.login-card {
    background-color: var(--card-bg);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.login-card h1 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.8rem;
}

.login-card p {
    color: #666;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s;
    box-sizing: border-box;
}

.form-group input:focus {
    border-color: var(--primary-color);
    outline: none;
}

.btn {
    background-color: var(--primary-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 1.1rem;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.3s, transform 0.2s;
}

.btn:hover {
    background-color: #001f3f;
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

.footer-text {
    margin-top: 1.5rem;
    font-size: 0.85rem;
    color: #888;
}

/* Responsive */
@media (max-width: 480px) {
    .login-card {
        padding: 1.5rem;
        margin: 1rem;
    }
}