body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    padding-top: 56px; /* For fixed navbar */
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
}

.text-primary {
    color: #0d6efd !important; /* Bootstrap primary blue */
}

.bg-primary {
    background-color: #0d6efd !important;
}

section {
    scroll-margin-top: 80px; /* Offset for sticky navbar when clicking links */
}

.card {
    border-radius: 10px;
    border: none;
    transition: transform 0.2s ease-in-out;
}

.card:hover {
    transform: translateY(-2px);
}

.accordion-button:not(.collapsed) {
    background-color: #e7f1ff;
    color: #0c63e4;
}

.accordion-button:focus {
    box-shadow: none;
    border-color: rgba(0,0,0,.125);
}

.list-group-item {
    border-left: none;
    border-right: none;
    border-top: 1px solid rgba(0,0,0,.125);
    border-bottom: 1px solid rgba(0,0,0,.125);
    padding: 1rem 1.25rem;
}

.list-group-item:first-child {
    border-top: none;
}

.list-group-item:last-child {
    border-bottom: none;
}

footer {
    margin-top: auto;
}

/* Back to Top Button */
#backToTop {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 99;
    border: none;
    outline: none;
    background-color: #0d6efd;
    color: white;
    cursor: pointer;
    padding: 15px;
    border-radius: 50%;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: opacity 0.3s, transform 0.3s;
}

#backToTop:hover {
    background-color: #0b5ed7;
    transform: translateY(-3px);
}