#arh24-tech-stack-showcase {
    background-color: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}
#arh24-tech-stack-showcase .section-header {
    margin-bottom: 2rem;
}
#arh24-tech-stack-showcase .section-header h2 {
    font-size: clamp(2rem, 4vw, 2.9rem);
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-primary);
}
#arh24-tech-stack-showcase .section-header .section-subtitle {
    color: var(--text-secondary);
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
}

.styled-card-grid {
    display: grid;
    gap: 2.5rem;
    margin-top: 3.5rem;
}
.styled-card-grid.grid-4col {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
@media (min-width: 992px) {
    .styled-card-grid.grid-4col {
        grid-template-columns: repeat(4, 1fr);
    }
}
.styled-card {
    text-align: center;
    padding: 2.5rem 1.5rem 1.5rem 1.5rem;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color-light);
    display: flex;
    flex-direction: column;
    position: relative;
    margin-top: 35px;
    border-left: 4px solid var(--accent-primary);
    transition: var(--transition-smooth);
    background-color: var(--bg-card);
}
.styled-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-left-color: var(--accent-primary-hover);
}
.card-icon-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    background-color: var(--bg-card);
    border: 5px solid var(--bg-secondary);
}
.styled-card:hover .card-icon-wrapper {
    background-color: var(--accent-primary);
    transform: translate(-50%, -50%);
}
.card-icon-wrapper i {
    font-size: 2.2rem;
    color: var(--accent-primary);
    transition: color 0.3s ease;
}
.styled-card:hover .card-icon-wrapper i {
    color: var(--text-on-accent);
}
.styled-card .card-title-small {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    margin: 0;
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}