/* Base Styles */
.card {
    border: none;
    box-shadow: var(--shadow-sm);
}

/* Gradient & Background */
.bg-gradient-custom {
    background: linear-gradient(135deg, rgba(var(--bs-primary-rgb), 0.05) 0%, rgba(var(--bs-info-rgb), 0.03) 50%, rgba(255, 255, 255, 1) 100% );
    border-bottom: 1px solid rgba(var(--bs-primary-rgb), 0.05);
}

/* Section Styles */
.section-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c3e50;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid #e9ecef;
}

/* Timeline Components */
.timeline-container {
    position: relative;
}

.timeline-item {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 1.25rem;
}

    .timeline-item:last-child {
        margin-bottom: 0;
    }

.timeline-line {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, rgba(var(--bs-primary-rgb), 0.2), rgba(var(--bs-primary-rgb), 0.05) );
}

.timeline-dot {
    position: absolute;
    left: -6px;
    top: 1.25rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--bs-primary);
    z-index: 1;
}

.timeline-content {
    background-color: #fff;
    border-radius: 0.75rem;
    padding: 1.25rem;
    transition: var(--transition-base);
    border: 1px solid rgba(0,0,0,0.05);
}

    .timeline-content:hover {
        transform: translateX(5px);
        box-shadow: var(--shadow-md);
    }

/* Item Components */
.custom-item, .publication-item {
    background-color: #fff;
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 0.75rem;
    transition: var(--transition-base);
    border: 1px solid #eee;
}

    .custom-item:hover, .publication-item:hover {
        transform: translateX(5px);
        background-color: #f8f9fa;
        box-shadow: var(--shadow-sm);
    }

/* Typography */
.custom-text, .publication-title {
    color: #2c3e50;
    font-size: 0.95rem;
}

.text-meta {
    color: #6c757d;
    font-size: 0.875rem;
}

/* Icons */
.custom-icon {
    color: var(--bs-primary);
    opacity: 0.8;
    margin-right: 0.75rem;
    font-size: 1rem;
}

.icon-size {
    height: 16px;
    width: auto;
}

/* Buttons & Badges */
.btn-link-custom {
    padding: 0.25rem 0.5rem;
    border: 1px solid #dee2e6;
    border-radius: 0.25rem;
    color: #6c757d;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.875rem;
    transition: var(--transition-base);
}

    .btn-link-custom:hover {
        background-color: #f8f9fa;
        color: #495057;
    }

.custom-badge {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.35em 0.65em;
    border-radius: 0.25rem;
}

/* Section Containers */
.publication-section {
    margin-bottom: 2rem;
}

/* Utility Classes */
.hover-shadow {
    transition: var(--transition-base);
}

    .hover-shadow:hover {
        box-shadow: var(--shadow-md);
    }