.dark-mode {
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --text-primary: #f0f0f0;
    --text-secondary: #aaaaaa;
    --text-muted: #888888;
    --shadow-color: rgba(0, 0, 0, 0.5);
    --marta-black: #e8e8e8;
}

/* Logo swap */
.dark-mode .siteheader-logo-light {
    display: none;
}

.dark-mode .siteheader-logo-dark {
    display: block;
}

/* DeKalb County logo dark version */
.dark-mode .dekalb-logo {
    content: url('assets/logos/dekalb-schools-dark.png');
}

/* Hero section */
.dark-mode .train-hero {
    background: linear-gradient(135deg, #1a1a1a 0%, #222222 100%);
}

.dark-mode .hero-image img {
    border-color: #1a1a1a;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6), inset 0 0 0 2px rgba(0, 146, 208, 0.5);
}

/* Toggle slider */
.dark-mode .slider {
    background-color: #444;
}

/* Footer background matches hero */
.dark-mode footer {
    background-color: #222222;
}

/* Footer skyline */
.dark-mode .footer-skyline path {
    fill: var(--marta-blue);
}

.dark-mode .footer-skyline {
    opacity: 0.2;
}