/* Knowledge Hall — Dark theme consistent with TinyTrivia */
/* v13: Adjusted padding for sidebar layout */

/* ========== HERO ========== */
.kh-hero {
    text-align: center;
    padding: 60px 0 40px;
}

.kh-hero-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 3px solid var(--host-viking, #92400E);
    box-shadow: 0 0 30px rgba(146, 64, 14, 0.4);
    margin-bottom: 20px;
}

.kh-hero-title {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(28px, 5vw, 42px);
    font-weight: 900;
    color: var(--text);
    margin-bottom: 12px;
}

.kh-hero-subtitle {
    font-family: 'Chakra Petch', sans-serif;
    font-size: 16px;
    color: var(--text-muted);
    max-width: 500px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ========== CULTURE GRID ========== */
.kh-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px 80px;
}

.kh-culture-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px 20px;
    text-align: center;
    text-decoration: none;
    color: var(--text);
    transition: border-color 0.3s, transform 0.2s;
    position: relative;
    overflow: hidden;
}

.kh-culture-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--culture-color, var(--accent));
}

.kh-culture-card:hover {
    border-color: var(--culture-color, var(--accent));
    transform: translateY(-3px);
}

.kh-culture-icon {
    font-size: 40px;
    display: block;
    margin-bottom: 12px;
}

.kh-culture-name {
    font-family: 'Orbitron', sans-serif;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 6px;
}

.kh-culture-count {
    font-family: 'Chakra Petch', sans-serif;
    font-size: 12px;
    color: var(--text-muted);
    display: block;
    margin-bottom: 6px;
}

.kh-culture-quiz {
    font-family: 'Orbitron', sans-serif;
    font-size: 10px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ========== BREADCRUMB ========== */
.kh-breadcrumb {
    max-width: 900px;
    margin: 20px auto 0;
    padding: 16px 24px;
    font-family: 'Chakra Petch', sans-serif;
    font-size: 13px;
    color: var(--text-muted);
}

.kh-breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.kh-breadcrumb a:hover {
    color: var(--accent);
}

.kh-breadcrumb-sep {
    margin: 0 8px;
    opacity: 0.4;
}

/* ========== CULTURE HERO ========== */
.kh-culture-hero {
    max-width: 900px;
    margin: 0 auto 40px;
    padding: 40px 24px;
    text-align: center;
    border-bottom: 1px solid var(--border);
}

.kh-culture-hero-icon {
    font-size: 56px;
    display: block;
    margin-bottom: 16px;
}

.kh-culture-hero h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(24px, 4vw, 36px);
    font-weight: 900;
    color: var(--text);
    margin-bottom: 20px;
}

.kh-quiz-btn {
    display: inline-block;
    padding: 12px 28px;
    background: var(--accent-gradient);
    color: #fff;
    border-radius: 12px;
    font-family: 'Orbitron', sans-serif;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-decoration: none;
    transition: filter 0.2s, transform 0.1s;
}

.kh-quiz-btn:hover {
    filter: brightness(1.1);
    color: #fff;
    transform: scale(1.02);
}

/* ========== ARTICLES LIST ========== */
.kh-articles-list {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px 80px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.kh-article-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 24px;
    text-decoration: none;
    color: var(--text);
    transition: border-color 0.3s, transform 0.2s;
}

.kh-article-card:hover {
    border-color: var(--accent);
    transform: translateX(4px);
}

.kh-article-card h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
}

.kh-article-card p {
    font-family: 'Chakra Petch', sans-serif;
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
    margin-bottom: 8px;
}

.kh-article-badge {
    font-family: 'Orbitron', sans-serif;
    font-size: 10px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ========== ARTICLE PAGE ========== */
.kh-article {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px 80px;
}

.kh-article-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
}

.kh-article-author-avatar {
    border-radius: 50%;
    border: 2px solid var(--host-viking, #92400E);
    flex-shrink: 0;
}

.kh-article-header h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(20px, 3.5vw, 28px);
    font-weight: 900;
    color: var(--text);
    margin-bottom: 4px;
}

.kh-article-meta {
    font-family: 'Chakra Petch', sans-serif;
    font-size: 13px;
    color: var(--text-muted);
}

/* Video embed */
.kh-video-embed {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: 14px;
    margin-bottom: 32px;
}

.kh-video-embed iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 14px;
}

/* Article body */
.kh-article-body {
    font-family: 'Chakra Petch', sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.kh-article-body h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    margin: 32px 0 16px;
}

.kh-article-body h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin: 24px 0 12px;
}

.kh-article-body strong {
    color: var(--text);
}

.kh-article-body p {
    margin-bottom: 16px;
}

/* CTA */
.kh-article-cta {
    background: var(--bg-card);
    border: 1px solid rgba(146, 64, 14, 0.3);
    border-radius: 16px;
    padding: 32px;
    text-align: center;
    margin-top: 48px;
}

.kh-article-cta h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 8px;
}

.kh-article-cta p {
    font-family: 'Chakra Petch', sans-serif;
    color: var(--text-muted);
    margin-bottom: 20px;
}

/* ========== EMPTY / ERROR ========== */
.kh-empty, .kh-error {
    text-align: center;
    font-family: 'Chakra Petch', sans-serif;
    color: var(--text-muted);
    padding: 60px 24px;
    font-size: 16px;
}

.kh-error {
    color: var(--error);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 600px) {
    .kh-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .kh-culture-card {
        padding: 20px 12px;
    }

    .kh-culture-icon {
        font-size: 32px;
    }

    .kh-article-header {
        flex-direction: column;
        text-align: center;
    }
}