/* Page Header */
.page-header {
    padding: calc(var(--header-height) + var(--space-96)) 0 var(--space-96);
    text-align: center;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 1400px;
    height: 100%;
    background: radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.08) 0%, transparent 60%);
    pointer-events: none;
}

.page-title {
    font-size: var(--font-5xl);
    font-weight: var(--weight-black);
    margin-bottom: var(--space-16);
    position: relative;
    z-index: 1;
}

.page-desc {
    font-size: var(--font-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* Events Section */
.events-section {
    padding: var(--space-128) 0;
}

.events-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-32);
}

/* Event Card */
.event {
    display: grid;
    grid-template-columns: 80px 400px 1fr;
    gap: var(--space-32);
    padding: var(--space-32);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    align-items: center;
    position: relative;
    overflow: hidden;
}

.event::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.event:hover {
    border-color: var(--border-light);
    transform: translateX(12px);
    box-shadow: var(--shadow-xl);
}

.event:hover::before {
    opacity: 1;
}

.event-number {
    font-size: var(--font-3xl);
    font-weight: var(--weight-black);
    color: var(--text-tertiary);
    text-align: center;
    font-family: var(--font-mono);
    opacity: 0.5;
    transition: all var(--transition-base);
}

.event:hover .event-number {
    opacity: 1;
    color: var(--text-secondary);
    transform: scale(1.1);
}

.event-image {
    position: relative;
    width: 100%;
    height: 220px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-tertiary);
    box-shadow: var(--shadow-md);
}

.event-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: var(--gradient-dark);
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.event:hover .event-image::after {
    opacity: 1;
}

.event-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.event:hover .event-image img {
    transform: scale(1.08);
}

.event-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-16);
}

.event-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--space-16);
}

.event-title {
    font-size: var(--font-2xl);
    font-weight: var(--weight-bold);
    line-height: 1.3;
}

.event-year {
    font-size: var(--font-sm);
    color: var(--text-tertiary);
    font-weight: var(--weight-medium);
    font-family: var(--font-mono);
    white-space: nowrap;
}

.event-desc {
    font-size: var(--font-base);
    color: var(--text-secondary);
    line-height: 1.6;
}

.event-tags {
    display: flex;
    gap: var(--space-8);
    flex-wrap: wrap;
}

.tag {
    padding: 0.375rem 0.875rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: var(--font-xs);
    color: var(--text-secondary);
    font-weight: var(--weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all var(--transition-base);
}

.tag:hover {
    background: var(--bg);
    border-color: var(--border-light);
    color: var(--text-primary);
}

/* Featured Badge */
.event-featured {
    position: absolute;
    top: var(--space-16);
    right: var(--space-16);
    padding: var(--space-8) var(--space-16);
    background: rgba(99, 102, 241, 0.9);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-full);
    font-size: var(--font-xs);
    font-weight: var(--weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    z-index: 2;
    animation: pulse 2s ease-in-out infinite;
}

/* Responsive */
@media (max-width: 968px) {
    .event {
        grid-template-columns: 1fr;
        gap: var(--space-24);
    }
    
    .event-number {
        display: none;
    }
    
    .event-image {
        height: 240px;
    }
    
    .event-header {
        flex-direction: column;
        gap: var(--space-8);
        align-items: flex-start;
    }
    
    .page-title {
        font-size: var(--font-4xl);
    }
}

@media (max-width: 640px) {
    .events-list {
        gap: var(--space-24);
    }
    
    .event {
        padding: var(--space-24);
        gap: var(--space-16);
    }
    
    .event-image {
        height: 180px;
    }
    
    .event-title {
        font-size: var(--font-xl);
    }
    
    .page-title {
        font-size: var(--font-3xl);
    }
    
    .page-desc {
        font-size: var(--font-base);
    }
}