:root {
    --primary-color: #fff;
    --secondary-color: #03838e;
    --accent-color: #03838e;
    --light-color: #f8f9fa;
    --dark-color: #000000;
    --warning-color: #f8d7da;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f5f5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header styles */
.header-top {
    background-color: var(--light-color);
    color: var(--dark-color);
    font-size: 0.9rem;
}

.navbar {
    background-color: var(--primary-color);
    padding: 1rem 2rem;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 600;
    color: #03838e;
}

.logo img {
    max-height: 80px;
}

/* Main content styles */
.main-content {
    flex: 1;
    padding: 3rem 0;
    background-color: #f5f5f5;
}

.login-container {
    width: 100%;
    max-width: 500px;
    padding: 0 1rem;
}

.card {
    border: none;
    border-radius: 10px;
}

.login-title {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.form-label {
    font-weight: 500;
}

.input-group-text {
    background-color: var(--light-color);
    border-right: none;
}

.form-control {
    border-left: none;
}

.form-control:focus {
    box-shadow: none;
    border-color: #ced4da;
}

.password-toggle {
    cursor: pointer;
}

.login-btn {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    padding: 0.6rem;
    font-weight: 500;
}

.login-btn:hover {
    background-color: #02656e;
    border-color: #02656e;
}

/* Security alert styles */
.security-alert {
    background-color: var(--warning-color);
    border-left: 5px solid #dc3545;
    border-radius: 5px;
}

.security-alert h5 {
    color: #721c24;
    font-size: 1rem;
    font-weight: 600;
}

.security-alert p {
    font-size: 0.9rem;
}

/* Footer styles */
.footer {
    background-color: var(--light-color);
    color: var(--dark-color);
    font-size: 0.9rem;
    padding: 1.5rem 0;
}

.footer-links a {
    color: var(--primary-color);
}

.footer-links a:hover {
    color: var(--secondary-color);
}

.copyright {
    color: var(--dark-color);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .navbar-brand, .account-info {
        font-size: 1rem;
    }
    
    .logo img {
        max-height: 40px;
    }
    
    .login-container {
        padding: 0 1rem;
    }
}