/* ==========================================================================
   Timeline Component
   ========================================================================== */

.timeline {
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--cyber-blue), var(--cyber-purple), var(--cyber-teal));
    transform: translateX(-50%);
    box-shadow: 0 0 15px rgba(var(--cyber-blue-rgb), 0.3);
}

/* Timeline Item */
.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-3xl);
}

/* Alternating layout */
.timeline-item:nth-child(odd) .timeline-content {
    margin-right: auto;
    margin-left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: auto;
    margin-right: 0;
    text-align: left;
}

/* Timeline Dot */
.timeline-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--cyber-blue);
    border: 4px solid var(--cyber-dark);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    box-shadow: 0 0 15px rgba(var(--cyber-blue-rgb), 0.5);
}

/* Timeline Content */
.timeline-content {
    width: 42%;
}

/* Research Timeline (vertical left-aligned) */
.research-timeline {
    position: relative;
    padding-left: var(--spacing-xl);
}

.research-timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--cyber-blue), var(--cyber-purple), var(--cyber-teal));
    box-shadow: 0 0 10px rgba(var(--cyber-blue-rgb), 0.3);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .timeline::before {
        left: 20px;
    }

    .timeline-dot {
        left: 20px;
    }

    .timeline-item .timeline-content {
        margin-left: 50px !important;
        margin-right: 0 !important;
        text-align: left !important;
        width: auto;
    }
}