.about-hero {
    background: var(--gradient-dark);
    padding: 120px 0 80px;
    margin-top: calc(var(--header-height) * -1);
    padding-top: calc(var(--header-height) + 60px);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.about-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
    background-size: 50px 50px;
    opacity: 0.5;
}

.about-hero .container {
    position: relative;
    z-index: 1;
}

.about-hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
}

.about-hero-desc {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.7);
    max-width: 600px;
    margin: 0 auto;
}

.about-intro {
    padding: 80px 0;
}

.about-intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-intro-text h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.about-intro-text p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-intro-image svg {
    width: 100%;
    max-width: 450px;
}

.about-stats {
    background: var(--bg-light);
    padding: 80px 0;
}

.about-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.about-stat-item {
    text-align: center;
}

.about-stat-value {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.about-stat-label {
    font-size: 16px;
    color: var(--text-secondary);
}

.about-timeline {
    padding: 80px 0;
}

.timeline-list {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

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

.timeline-item {
    display: flex;
    margin-bottom: 40px;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-item:nth-child(odd) .timeline-content {
    text-align: right;
    padding-right: 60px;
}

.timeline-item:nth-child(even) .timeline-content {
    padding-left: 60px;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    top: 0;
    width: 16px;
    height: 16px;
    background: var(--primary-color);
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.timeline-content {
    width: 50%;
}

.timeline-year {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.timeline-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.timeline-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.about-team {
    background: var(--bg-light);
    padding: 80px 0;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.team-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    text-align: center;
    transition: var(--transition);
}

.team-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.team-avatar {
    width: 100%;
    height: 200px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
    color: white;
}

.team-info {
    padding: 24px;
}

.team-name {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.team-position {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.team-social {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.team-social a {
    width: 32px;
    height: 32px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
}

.team-social a:hover {
    background: var(--primary-color);
    color: white;
}

.contact-section {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.contact-info > p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}

.contact-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    gap: 16px;
}

.contact-item-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--primary-color);
    flex-shrink: 0;
}

.contact-item-text h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.contact-item-text p {
    font-size: 14px;
    color: var(--text-secondary);
}

.contact-form-wrapper {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.contact-form-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-primary);
    transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.document-section {
    padding: 80px 0;
}

.document-sidebar {
    width: 280px;
    flex-shrink: 0;
}

.document-nav {
    background: white;
    border-radius: 16px;
    padding: 24px;
    position: sticky;
    top: calc(var(--header-height) + 24px);
    box-shadow: var(--shadow-sm);
}

.document-nav-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.document-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.document-nav-item {
    margin-bottom: 8px;
}

.document-nav-link {
    display: block;
    padding: 10px 12px;
    font-size: 14px;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: var(--transition);
}

.document-nav-link:hover,
.document-nav-link.active {
    background: var(--bg-light);
    color: var(--primary-color);
}

.document-content {
    flex: 1;
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-sm);
}

.document-content h1 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.document-content h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 32px 0 16px;
}

.document-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 24px 0 12px;
}

.document-content p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.document-content ul,
.document-content ol {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
    padding-left: 24px;
}

.document-content code {
    padding: 2px 6px;
    background: var(--bg-light);
    border-radius: 4px;
    font-family: 'Consolas', monospace;
    font-size: 14px;
}

.document-content pre {
    background: var(--secondary-color);
    color: white;
    padding: 20px;
    border-radius: 12px;
    overflow-x: auto;
    margin-bottom: 16px;
}

.document-content pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

@media (max-width: 1024px) {
    .about-intro-content {
        grid-template-columns: 1fr;
    }

    .about-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .about-hero-title {
        font-size: 32px;
    }

    .about-stats-grid {
        grid-template-columns: 1fr;
    }

    .timeline-list::before {
        left: 0;
    }

    .timeline-item,
    .timeline-item:nth-child(odd) {
        flex-direction: column;
    }

    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        width: 100%;
        padding-left: 40px;
        padding-right: 0;
        text-align: left;
    }

    .timeline-dot {
        left: 0;
    }

    .team-grid {
        grid-template-columns: 1fr;
    }
}