.section-process-dark {
    background-color: var(--color-primary);
    color: #fff;
}

.pipeline-step {
    position: relative;
    z-index: 2;
}

.pipeline-step__num {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1;
    color: rgba(255, 255, 255, 0.1);
    transition: color 0.3s ease;
}

.pipeline-step:hover .pipeline-step__num {
    color: var(--color-accent);
}

.pipeline-step__title {
    color: #fff;
    margin-bottom: 0.5rem;
}

.pipeline-step__desc {
    color: rgba(255, 255, 255, 0.6);
}

@media (max-width: 576px) {
	.pipeline-line { left: 10px; }
	.pipeline-node { left: 10px; width: 16px; height: 16px; }
	.pipeline-step__num { font-size: 2.5rem !important; }
	.pipeline-step__title { font-size: 1.1rem !important; }
	.pipeline-step__desc { font-size: 0.85rem !important; line-height: 1.4 !important; }
	.pipeline-content { padding-left: 2rem !important; }
}

/* The Line */
.pipeline-line {
    position: absolute;
    top: 2rem;
    bottom: 2rem;
    left: 50%;
    width: 4px;
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-50%);
    z-index: 1;
}

.pipeline-line-progress {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: var(--color-accent);
    box-shadow: 0 0 20px var(--color-accent);
    transition: height 0.1s linear;
}

/* Alternating Layout */
.pipeline-row {
    display: flex;
    justify-content: center;
    padding: 2rem 0;
    position: relative;
    transition: opacity 0.5s ease;
}

.pipeline-row.is-active .pipeline-node {
    background: var(--color-accent);
    box-shadow: 0 0 20px var(--color-accent);
    transform: translateX(-50%) scale(1.3);
}

.pipeline-row.is-active .pipeline-step__num {
    color: var(--color-accent);
    opacity: 0.8;
}

.pipeline-row.is-active .pipeline-step__title {
    color: var(--color-accent);
}

.pipeline-row.is-active .pipeline-step__desc {
    color: #fff;
}

.pipeline-node {
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border: 3px solid var(--color-accent);
    border-radius: 50%;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
    transition: all 0.4s ease;
}

.pipeline-content {
    width: 45%;
}

.pipeline-row:nth-child(odd) .pipeline-content {
    margin-right: auto;
    text-align: right;
    padding-right: 3rem;
}

.pipeline-row:nth-child(even) .pipeline-content {
    margin-left: auto;
    text-align: left;
    padding-left: 3rem;
}

/* Mobile Adaptation for Pipeline */
@media (max-width: 768px) {
    .pipeline-line {
        left: 20px;
    }
    .pipeline-node {
        left: 20px;
    }
    .pipeline-content {
        width: calc(100% - 60px);
        margin-left: auto !important;
        margin-right: 0 !important;
        text-align: left !important;
        padding-left: 3rem !important;
        padding-right: 0 !important;
    }
    .pipeline-row:nth-child(odd) .pipeline-content {
        text-align: left;
        padding-left: 3rem;
        padding-right: 0;
    }
}