/* History page unique styles - Mobile First */

.timeline {
    position: relative;
    padding-left: var(--spacing-lg); /* Space for the line */
    margin-top: var(--spacing-md);
}

/* Vertical line for the timeline */
.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    background-color: var(--color-border);
    height: 100%;
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-xl);
    padding-left: var(--spacing-lg); /* Spacing from the line */
    animation: fadeInUp var(--transition-slow) ease-out;
}

/* Timeline dot (the marker) */
.timeline-item::before {
    content: '';
    position: absolute;
    top: 0.25rem;
    left: -12px;
    width: 20px;
    height: 20px;
    background-color: var(--desmos-blue);
    border: 4px solid var(--desmos-light-gray);
    border-radius: 50%;
    box-shadow: 0 0 0 3px var(--desmos-blue);
}

.history-header {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    color: var(--desmos-dark-blue);
    margin-bottom: var(--spacing-sm);
}

.history-date {
    font-size: 0.875rem;
    color: var(--desmos-gray);
    display: block;
    margin-bottom: var(--spacing-sm);
}