/* ========================================
   Article Pages Stylesheet
   ======================================== */

.article-hero {
    padding: 160px 0 60px;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-lighter) 100%);
    position: relative;
}

.article-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../images/global-map.webp') center/cover;
    opacity: 0.15;
}

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

.article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.article-tag {
    background: var(--gradient-primary);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.article-date {
    color: var(--gray-light);
    font-size: 0.9rem;
}

.article-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 20px;
    max-width: 800px;
}

.article-excerpt {
    font-size: 1.2rem;
    color: var(--gray-light);
    max-width: 700px;
}

.article-content {
    padding: 80px 0;
}

.article-body {
    max-width: 800px;
    margin: 0 auto;
}

.article-body h2 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    margin: 48px 0 20px;
    color: var(--white);
}

.article-body h3 {
    font-size: 1.4rem;
    margin: 32px 0 16px;
    color: var(--primary-light);
}

.article-body p {
    color: var(--gray-light);
    line-height: 1.9;
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.article-body ul,
.article-body ol {
    margin: 20px 0;
    padding-left: 24px;
}

.article-body li {
    color: var(--gray-light);
    line-height: 1.8;
    margin-bottom: 12px;
}

.article-body blockquote {
    border-left: 4px solid var(--primary);
    padding: 20px 30px;
    margin: 32px 0;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 0 12px 12px 0;
}

.article-body blockquote p {
    font-size: 1.1rem;
    font-style: italic;
    margin: 0;
}

.highlight-box {
    background: var(--dark-card);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 16px;
    padding: 30px;
    margin: 32px 0;
}

.highlight-box h4 {
    color: var(--primary-light);
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.warning-box {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 16px;
    padding: 30px;
    margin: 32px 0;
}

.warning-box h4 {
    color: #f87171;
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.timeline-item {
    background: var(--dark-card);
    border-radius: 12px;
    padding: 20px 24px;
    margin: 16px 0;
    border-left: 4px solid var(--primary);
}

.timeline-item .date {
    color: var(--primary-light);
    font-weight: 600;
    margin-bottom: 8px;
}

.article-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 40px;
    margin-top: 60px;
}

.related-articles {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.related-card {
    background: var(--dark-card);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 24px;
    transition: var(--transition-normal);
}

.related-card:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-4px);
}

.related-card h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.related-card p {
    color: var(--gray);
    font-size: 0.9rem;
    margin: 0;
}

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

/* Utilities */
.hidden {
    display: none !important;
}

/* Unique Article Styles */

.article-image {
    margin: 40px 0;
    border-radius: 16px;
    overflow: hidden;
}

.article-image img {
    width: 100%;
    height: auto;
}

/* Tech Grid (ai-practice.html) */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 32px 0;
}

.tech-card {
    background: var(--dark-card);
    border-radius: 12px;
    padding: 24px;
}

.tech-card h4 {
    color: var(--white);
    margin-bottom: 8px;
}

.tech-card p {
    color: var(--gray-light);
    font-size: 0.95rem;
    margin: 0;
}

/* Stat Row (robot-vacuum-case.html) */
.stat-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin: 40px 0;
}

.stat-box {
    background: var(--dark-card);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
}

.stat-box .number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-light);
}

.stat-box .label {
    color: var(--gray-light);
    font-size: 0.9rem;
    margin-top: 8px;
}

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