/* Biography Timeline Section */
.biography-section {
    max-width: 1400px;
    margin: 4rem auto;
    margin-top: 0;
    padding-top: 0;
    padding: 3rem 2rem;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(66, 125, 192, 0.15);
}

.biography-container {
    width: 100%;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: #1f3079;
    margin-bottom: 3rem;
    font-weight: 700;
}

/* Year Tabs */
.year-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.year-tab {
    background: rgba(255, 255, 255, 0.8);
    border: 2px solid #427dc0;
    color: #427dc0;
    padding: 0.8rem 2rem;
    border-radius: 25px;
    font-family: 'Yekan Bakh', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.year-tab:hover {
    background: #427dc0;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(66, 125, 192, 0.3);
}

.year-tab.active {
    background: linear-gradient(135deg, #203F78 0%, #6e92da 100%);
    color: white;
    border-color: #203F78;
    box-shadow: 0 6px 20px rgba(66, 125, 192, 0.4);
}

/* Timeline Content */
.timeline-content {
    position: relative;
    min-height: 400px;
}

.year-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Content Card */
.content-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    background: rgba(255, 255, 255, 0.6);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 4px 20px rgba(66, 125, 192, 0.1);
}

.content-image {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(66, 125, 192, 0.2);
    
}

.content-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.content-image:hover img {
    transform: scale(1.05);
}

.content-text h3 {
    font-size: 2rem;
    color: #1f3079;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.achievement-list {
    list-style: none;
    padding: 0;
}

.achievement-list li {
    color: #4a5868;
    font-size: 1.1rem;
    padding: 0.8rem 0;
    padding-right: 1.5rem;
    position: relative;
    line-height: 1.6;
}

.achievement-list li::before {
    content: "";
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: #427dc0;
    border-radius: 50%;
}

/* Responsive */
@media (max-width: 968px) {
    .content-card {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .year-tabs {
        gap: 0.5rem;
    }
    
    .year-tab {
        padding: 0.6rem 1.5rem;
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    .biography-section {
        margin: 2rem 1rem;
        padding: 2rem 1rem;
    }
    
    .content-text h3 {
        font-size: 1.5rem;
    }
    
    .achievement-list li {
        font-size: 1rem;
    }
}