body {
    font-family: 'Courier New', monospace;
    background-color: #1a202c;
    color: #e2e8f0;
    transition: background-color 0.3s ease, color 0.3s ease;
    background-image: url('https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQ8Z9FTzLDjysW6fJlPwTO2wjmuKJanIst3rDXXsejK-h-v6yS1fHdUpeI&s=10');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-repeat: no-repeat;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 32, 44, 0.85);
    z-index: -1;
}

.light-mode {
    background-color: #f7fafc;
    color: #2d3748;
}

.link-card {
    transition: all 0.3s ease;
}

.link-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 6px rgba(66, 153, 225, 0.5);
}

#dark-mode-toggle {
    transition: all 0.3s ease;
}

#dark-mode-toggle:hover {
    transform: rotate(45deg);
}

.light-mode #dark-mode-toggle svg {
    fill: #2d3748;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}