:root {
    --footer-bg: #000000;
    --footer-text: #ecf0f1;
    --footer-heading-border: #007bff;
    --footer-link-hover: #FF0800;
    --footer-link-bg: #34495e;
    --footer-bottom-border: #34495e;
    --footer-bottom-text: #bdc3c7;
}

.site-footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    padding: 40px 0;
    font-size: 15px;
}

.footer-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-about, .footer-links, .footer-social {
    flex: 1;
    min-width: 250px;
}

.site-footer h3 {
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--footer-text);
    border-bottom: 2px solid var(--footer-heading-border);
    padding-bottom: 8px;
    display: inline-block;
}

.footer-about p { line-height: 1.6; color: #bdc3c7; }

.footer-links ul { list-style: none; padding: 0; margin: 0; }
.footer-links ul li { margin-bottom: 10px; }
.footer-links a {
    color: var(--footer-text);
    text-decoration: none;
    transition: color 0.3s ease;
}
.footer-links a:hover { color: var(--footer-link-hover); }

.footer-social .social-icons {
    margin-top: 15px;
}

.footer-social .social-icons a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    margin: 0 8px;
    font-size: 20px;
    color: var(--footer-text);
    background-color: var(--footer-link-bg);
    border-radius: 50%;
    text-decoration: none;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.footer-social .social-icons a:hover {
    background-color: var(--footer-link-hover);
    color: var(--footer-text);
}

.footer-bottom {
    text-align: center;
    padding: 20px 0;
    margin-top: 30px;
    border-top: 1px solid var(--footer-bottom-border);
    font-size: 14px;
    color: var(--footer-bottom-text);
}

@media (max-width: 768px) {
    .footer-container { flex-direction: column; text-align: center; }
    .footer-about, .footer-links, .footer-social { margin-bottom: 20px; }
    .site-footer h3 { display: block; }
    .social-icons { display: flex; justify-content: center; }
}

/* Dark mode variables */
.darkmode {
    --background-color: #121212;
    --text-color: #EAEAEA;
    --highlight-color: #1E90FF;
    --highlight-hover: #1C86EE;
    --secondary-color: #555;
    --secondary-hover: #ccc;
    --card-bg: #1E1E1E;
    --card-text: #CCCCCC;
    --btn-text: #fff;
    --btn-bg-primary: #1E90FF;
    --btn-hover-primary: #1C86EE;
    --btn-bg-secondary: #555;
    --btn-hover-secondary: #777;
    --section-line: #fff;
}