.step-content {
    display: none;
    animation: fadeIn 0.4s ease-out;
    min-height: 500px;
}

.step-content.active {
    display: block;
}

.pipeline-theory-card {
    background: var(--light-green) !important; 
    padding: 30px;
    border-radius: 20px;
    border: none !important; 
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.pipeline-img-container {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 12px;
    margin-top: 20px;
    border: 1px dashed var(--light-green);
}

.simulator-wrapper {
    width: 100%;
    overflow-x: auto; 
    padding-bottom: 20px;
}

.simulator-grid {
    display: grid;
    grid-template-columns: 160px repeat(7, 1fr);
    min-width: 800px; 
    margin-top: 25px;
    background: white;
    border-radius: 15px;
}

.time-mark {
    text-align: center;
    padding-bottom: 20px;
    font-weight: bold;
}

.time-mark span {
    display: inline-block;
    width: 35px;
    height: 35px;
    line-height: 35px;
    border-radius: 50%;
    transition: 0.3s;
    border: 2px solid var(--light-green);
}

.time-mark.active span {
    background: var(--warning-orange);
    color: white;
    border-color: var(--warning-orange);
    transform: scale(1.2);
    box-shadow: 0 4px 10px rgba(230, 126, 34, 0.3);
}

.lane-title {
    height: 85px;
    display: flex;
    align-items: center;
    font-weight: 800;
    color: var(--primary-green);
    border-bottom: 1px solid #f0f0f0;
    padding-left: 10px;
    font-size: 0.9rem;
}

.slot {
    height: 85px;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.process-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: slideUp 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.process-icon img {
    width: 35px;
    height: 35px;
    object-fit: contain;
}

.process-icon span {
    font-size: 0.65rem;
    font-weight: bold;
    margin-top: 4px;
    color: var(--text-dark);
    text-align: center;
    line-height: 1;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}