:root {
    --breadcrumb-accent: #ffcb58;

}

.material-breadcrumbs.section-biology {
    --breadcrumb-accent: #40cb7a;
}

.material-breadcrumbs.section-chemistry {
    --breadcrumb-accent: #b561ff;
}

.material-breadcrumbs.section-physics {
    --breadcrumb-accent: #56a9ff;
}

.material-breadcrumbs {
    width: 100%;
    max-width: 1000px;
    margin: 20px auto 0;
    padding: 0 16px;
    z-index: 10;
    position: relative;
}

.breadcrumb-list {
    list-style: none;
    padding: 8px 16px;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;

    /* Integrated style: no background, no shadow */
    background: transparent;
    padding: 8px 0;
    /* Adjusted padding since no border */
    border: none;
    box-shadow: none;

    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
    -ms-overflow-style: none;
    cursor: grab;
}

.breadcrumb-list::-webkit-scrollbar {
    display: none;
}

.breadcrumb-list.active {
    cursor: grabbing;
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
}

.breadcrumb-pill {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 32px;
    padding: 0 16px;
    border-radius: 50px;

    text-decoration: none;
    font-size: 13.5px;
    font-weight: 500;
    letter-spacing: 0.2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    font-family: 'Montserrat', sans-serif;

    background-color: transparent;
    color: rgba(255, 255, 255, 0.7);
}

a.breadcrumb-pill:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--breadcrumb-accent);
    transform: translateY(-1px);
}

.breadcrumb-pill.active {
    background: var(--breadcrumb-accent);
    color: #1a1a1a;
    cursor: default;
    pointer-events: none;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}


.material-breadcrumbs.section-chemistry .breadcrumb-pill.active,
.material-breadcrumbs.section-physics .breadcrumb-pill.active {
    color: #ffffff;
}

.separator svg {
    width: 14px;
    height: 14px;
    fill: rgba(255, 255, 255, 0.4);
    margin: 0 2px;
}


.ripple-effect {
    position: absolute;
    border-radius: 50%;
    transform: scale(0);
    animation: ripple 0.6s linear;
    background-color: rgba(255, 255, 255, 0.3);
    pointer-events: none;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}