:root {
    --primary-color: #007bff;
    --primary-hover: #0056b3;
    --background-color: #f8f9fa;
    --card-background: #ffffff;
    --text-color: #212529;
    --text-light: #6c757d;
    --border-color: #dee2e6;
    --shadow-color: rgba(0, 0, 0, 0.08);
    --accent-color: #007bff; 
}


body {
    font-family: 'Verdana', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    padding: 1rem;
    line-height: 1.6;
}

h1, h2 {
    text-align: center;
    color: #1a2b4d;
}

h1 { font-size: 2.25rem; }
h2 { margin-top: 3rem; border-bottom: 1px solid var(--border-color); padding-bottom: 0.75rem; }



.site-header {
    background-color: #ffffff;
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-header .logo-link {
    display: inline-block;
}

.site-header .logo-img {
    height: 40px;
    width: auto;
    display: block;
    transition: opacity 0.2s ease;
}

.site-header .logo-link:hover .logo-img {
    opacity: 0.8;
}

.site-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 0.5rem;
}

.site-nav a {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: all 0.2s ease;
}

.site-nav a:hover {
    background-color: #e9ecef;
    color: var(--accent-color);
}

.site-nav a.active {
    background-color: var(--accent-color);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.3);
}


.card {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.card h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.25rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
}

.card h3 svg {
    width: 22px;
    height: 22px;
    color: var(--accent-color);
}



.footer {
    text-align: center;
    margin-top: 3rem;
    padding: 1rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

@media screen and (max-width: 768px) {
    body {    padding: 0!important;}
}