:root {
    --primary-color: #8d8a4b;
    --dark-text-color: #3e3f40;
    --light-text-color: #FFFFFF;
}

.nav-tabs .nav-link {
    color: var(--dark-text-color);
    border: none;
    border-bottom: 3px solid transparent;
}

.nav-tabs .nav-link.active {
    color: var(--primary-color);
    border-bottom: 3px solid var(--primary-color);
    background-color: transparent;
}

.tag-list .nav-link {
    color: #6c757d;
    background-color: #e9ecef;
    padding: 0.3rem 0.8rem;
    margin-right: 0.5rem;
    border-radius: 50px;
    font-size: 0.9em;
    transition: background-color 0.2s, color 0.2s;
}

.tag-list .nav-link:hover,
.tag-list .nav-link.active {
    background-color: var(--primary-color);
    color: var(--light-text-color);
    cursor: pointer;
}

.news-card {
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.card-img-container {
    position: relative;
    overflow: hidden;
}

.card-img-overlay-text {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: var(--light-text-color);
    padding: 2rem 1rem 1rem 1rem;
    font-size: 0.9em;
}

.card-body {
    flex-grow: 1;
}

.card-title {
    color: var(--dark-text-color);
    font-weight: 500;
}

.card-author,
.card-extra-info {
    font-size: 0.85em;
    color: #6c757d;
}

.news-tag {
    background-color: var(--primary-color) !important;
    color: var(--light-text-color);
}

/* news detail */
.breadcrumb-item a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb-item.active {
    color: #6c757d;
}

.detail-title {
    color: var(--dark-text-color);
    font-weight: 700;
    margin-top: 1.5rem;
}

.detail-meta {
    color: #6c757d;
    font-size: 0.9em;
}

.detail-tags .badge {
    background-color: #6c757d;
    font-weight: 400;
}

.gallery-main-image {
    width: 100%;
    border-radius: 0.25rem;
}

.gallery-thumbnails img {
    width: 100%;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s;
    border: 2px solid transparent;
}

.gallery-thumbnails img:hover,
.gallery-thumbnails img.active {
    opacity: 1;
    border-color: var(--primary-color);
}

.activity-details-list {
    list-style: none;
    padding-left: 0;
}

.activity-details-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #eee;
}

.activity-details-list li .fa-fw {
    color: var(--primary-color);
}

.btn-primary-custom {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--light-text-color);
}

.btn-primary-custom:hover {
    background-color: #7a7742;
    border-color: #7a7742;
    color: var(--light-text-color);
}