/* ==========================================================================
   ChemXcel Redesign - About Page Specific Styling
   ========================================================================== */

/* Biography Grid */
.bio-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 4rem;
    align-items: center;
}

.bio-image-wrapper {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 4/5;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.bio-image-wrapper::after {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to top, rgba(68, 60, 152, 0.2) 0%, transparent 60%);
}

.bio-experience-tag {
    position: absolute;
    bottom: 2rem;
    left: 2rem;
    background: var(--grad-primary);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    z-index: 2;
}

/* Timeline of History */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 4rem auto 0 auto;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background-color: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    width: 50%;
    padding: 0 3rem;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
    text-align: left;
}

.timeline-badge {
    position: absolute;
    top: 4px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: var(--bg-primary);
    border: 4px solid var(--primary);
    z-index: 10;
}

.timeline-item:nth-child(odd) .timeline-badge {
    right: -9px;
}

.timeline-item:nth-child(even) .timeline-badge {
    left: -9px;
}

.timeline-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 1.75rem;
    border-radius: var(--radius-md);
    transition: transform var(--trans-medium), border-color var(--trans-medium);
}

.timeline-card:hover {
    border-color: rgba(68, 60, 152, 0.2);
    transform: translateY(-2px);
}

.timeline-year {
    font-family: var(--font-heading);
    font-weight: 800;
    color: var(--primary);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

/* Responsive elements */
@media (max-width: 1024px) {
    .bio-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .bio-image-wrapper {
        max-width: 480px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .timeline::before {
        left: 2rem;
    }
    .timeline-item {
        width: 100%;
        padding-left: 4rem;
        padding-right: 0;
        text-align: left !important;
        margin-bottom: 2.5rem;
    }
    .timeline-item:nth-child(even) {
        left: 0;
    }
    .timeline-item .timeline-badge {
        left: 2rem - 9px !important;
        right: auto !important;
    }
}