/* Knowledge Pages Styles (Report & Column, Web3 Basics) */

/* Report & Column Section */
.report-column-section {
    padding: 80px 0;
    background: #fff;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.category-section {
    margin-bottom: 80px;
}

.category-header {
    text-align: center;
    margin-bottom: 50px;
}

.category-title {
    font-size: 36px;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
}

.category-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.article-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s, box-shadow 0.3s;
    text-decoration: none;
    color: inherit;
    display: block;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.article-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: white;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-content {
    padding: 25px;
}

.article-date {
    color: #999;
    font-size: 14px;
    margin-bottom: 10px;
}

.article-title {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
    line-height: 1.4;
}

.article-excerpt {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
}

.coming-soon {
    text-align: center;
    padding: 60px 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.coming-soon-text {
    font-size: 24px;
    color: #999;
    font-style: italic;
}

/* Web3 Basics Section */
.web3-section {
    padding: 80px 0;
    background: #fff;
}

.section-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
}

.section-intro h2 {
    font-size: 36px;
    font-weight: 700;
    color: #333;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.section-intro h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2);
}

.section-intro p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-top: 30px;
}

.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.topic-card {
    background: white;
    border-radius: 12px;
    padding: 40px 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s, box-shadow 0.3s;
    text-decoration: none;
    color: inherit;
    display: block;
    text-align: center;
}

.topic-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.topic-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: white;
}

.topic-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.topic-description {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

.coming-soon-section {
    text-align: center;
    padding: 100px 20px;
}

/* Web3 Content Styles */
.web3-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

.content-section {
    margin-bottom: 60px;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
    padding-bottom: 20px;
}

.section-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #e8f0f7;
    color: #8b9dc3;
    font-size: 28px;
    font-weight: 700;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    color: #003d82;
    margin: 0;
}

.section-content {
    padding-left: 80px;
}

.intro-text {
    font-size: 16px;
    line-height: 1.8;
    color: #333;
    margin-bottom: 30px;
}

.feature-list {
    margin-top: 30px;
}

.feature-item {
    margin-bottom: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
}

.feature-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.feature-header i {
    color: #8b9dc3;
    font-size: 20px;
}

.feature-header h3 {
    font-size: 20px;
    font-weight: 600;
    color: #003d82;
    margin: 0;
}

.feature-item p {
    font-size: 15px;
    line-height: 1.8;
    color: #333;
    margin: 0;
}

.summary-box {
    margin-top: 40px;
    padding: 25px;
    background: #f0f7ff;
    border-left: 4px solid #003d82;
    border-radius: 4px;
}

.summary-box p {
    font-size: 15px;
    line-height: 1.8;
    color: #333;
    margin-bottom: 15px;
}

.summary-box p:last-child {
    margin-bottom: 0;
}

.highlight-text {
    font-weight: 500;
    color: #003d82;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .articles-grid {
        grid-template-columns: 1fr;
    }

    .category-title {
        font-size: 28px;
    }

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

    .section-intro h2 {
        font-size: 28px;
    }

    /* Web3 Content Mobile */
    .section-header {
        flex-direction: column;
        text-align: center;
    }

    .section-title {
        font-size: 24px;
    }

    .section-content {
        padding-left: 0;
    }

    .feature-item {
        padding: 15px;
    }
}