/* ==========================================================================
   Knowledge Base - Block Styles
   ========================================================================== */

/* Callout Blocks
   ========================================================================== */


.kb-callout {
    display: flex;
    gap: 12px;
    padding: 16px 20px;
    margin: 24px 0;
    border-radius: 8px;
    font-size: var(--kb-font-size-sm);
    line-height: 1.6;
}

.kb-callout-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 2px;
}

.kb-callout-content {
    flex: 1;
    min-width: 0;
}

.kb-callout-content p {
    margin: 0;
}

.kb-callout-content p + p {
    margin-top: 8px;
}

/* Info callout */
.kb-callout--info {
    background-color: var(--kb-callout-info-bg);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.kb-callout--info .kb-callout-icon {
    color: var(--kb-callout-info-icon);
}

/* Warning callout */
.kb-callout--warning {
    background-color: var(--kb-callout-warning-bg);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.kb-callout--warning .kb-callout-icon {
    color: var(--kb-callout-warning-icon);
}

/* Success callout */
.kb-callout--success {
    background-color: var(--kb-callout-success-bg);
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.kb-callout--success .kb-callout-icon {
    color: var(--kb-callout-success-icon);
}

/* Code Block
   ========================================================================== */

.kb-code-block {
    position: relative;
    margin: 24px 0;
    border-radius: 8px;
    border: 1px solid var(--kb-border);
    overflow: hidden;
}

.kb-code-block-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px;
    background-color: var(--kb-bg-primary);
    border-bottom: 1px solid var(--kb-border);
    font-size: var(--kb-font-size-xs);
    color: var(--kb-text-muted);
    font-family: var(--kb-font-mono);
}

.kb-code-block pre {
    margin: 0;
    padding: 20px 24px;
    background-color: var(--kb-bg-code);
    overflow-x: auto;
    border: none;
    border-radius: 0;
}

.kb-code-block pre code {
    font-family: var(--kb-font-mono);
    font-size: var(--kb-font-size-sm);
    line-height: 1.6;
    color: var(--kb-text-primary);
    background: none;
    padding: 0;
}

.kb-code-copy-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border: 1px solid var(--kb-border);
    border-radius: 4px;
    background: var(--kb-bg-secondary);
    color: var(--kb-text-muted);
    cursor: pointer;
    font-size: var(--kb-font-size-xs);
    font-family: var(--kb-font-sans);
    transition: all 0.15s ease;
}

.kb-code-copy-btn:hover {
    color: var(--kb-text-primary);
    border-color: var(--kb-text-muted);
}

/* Hero Banner
   ========================================================================== */

.kb-hero-banner {
    position: relative;
    padding: 48px 40px;
    margin: 0 0 32px 0;
    border-radius: 12px;
    background-size: cover;
    background-position: center;
    background-color: var(--kb-bg-card);
    overflow: hidden;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.kb-hero-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.1), rgba(0,0,0,0.6));
    z-index: 1;
}

.kb-hero-banner-content {
    position: relative;
    z-index: 2;
    color: #fff;
}

.kb-hero-banner h2 {
    font-size: var(--kb-font-size-3xl);
    font-weight: 700;
    margin: 0 0 8px 0;
    color: #fff;
    line-height: 1.2;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.kb-hero-banner p {
    font-size: var(--kb-font-size-sm);
    margin: 0;
    color: rgba(255, 255, 255, 0.85);
    max-width: 480px;
    line-height: 1.6;
}

/* Styled Table
   ========================================================================== */

.kb-styled-table {
    margin: 24px 0;
    border-radius: 8px;
    border: 1px solid var(--kb-border);
    overflow: hidden;
}

.kb-styled-table table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
}

.kb-styled-table th {
    padding: 12px 20px;
    font-weight: 600;
    font-size: var(--kb-font-size-sm);
    color: var(--kb-text-muted);
    background-color: var(--kb-bg-primary);
    text-align: left;
    border-bottom: 1px solid var(--kb-border);
}

.kb-styled-table td {
    padding: 14px 20px;
    font-size: var(--kb-font-size-sm);
    color: var(--kb-text-secondary);
    border-bottom: 1px solid var(--kb-border-light);
}

.kb-styled-table tr:last-child td {
    border-bottom: none;
}

.kb-styled-table tr:hover td {
    background-color: var(--kb-bg-primary);
}

/* TOC Block (in-content placeholder) */
.kb-toc-placeholder {
    display: none; /* Actual TOC is in the right sidebar */
}

/* Card Grid (Signposting / Home page)
   ========================================================================== */

.kb-card-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 8px;
}

.kb-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 24px;
    background-color: var(--kb-bg-secondary);
    border: 1px solid var(--kb-border);
    border-radius: 12px;
    text-decoration: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
    overflow: hidden;
}

.kb-card:hover {
    border-color: var(--kb-accent);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    text-decoration: none;
    transform: translateY(-2px);
}

.kb-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    margin-bottom: 16px;
    border-radius: 10px;
    background-color: var(--kb-bg-primary);
    border: 1px solid var(--kb-border);
    color: var(--kb-accent);
    flex-shrink: 0;
}

.kb-card-title {
    font-size: var(--kb-font-size-lg);
    font-weight: 600;
    margin: 0 0 8px 0;
    color: var(--kb-text-primary);
    line-height: 1.3;
}

.kb-card-desc {
    font-size: var(--kb-font-size-sm);
    color: var(--kb-text-secondary);
    margin: 0;
    line-height: 1.6;
    flex: 1;
}

/* Card sub-page links */
.kb-card-sublinks {
    list-style: none;
    margin: 16px 0 0 0;
    padding: 12px 0 0 0;
    display: flex;
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--kb-border);
}

/* Cap visible sub-links to 2 */
.kb-card-sublinks li:nth-child(n+3) {
    display: none;
}

/* "View all" link shown when there are hidden items */
.kb-card-sublinks-more {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 7px 0;
    font-size: var(--kb-font-size-xs);
    font-weight: 500;
    color: var(--kb-text-muted);
    text-decoration: none;
    transition: color 0.15s ease;
}

.kb-card-sublinks-more:hover {
    color: var(--kb-accent);
    text-decoration: none;
}

.kb-card-sublinks li {
    margin: 0;
    padding: 0;
}

.kb-card-sublinks a {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 0;
    font-size: var(--kb-font-size-sm);
    font-weight: 500;
    color: var(--kb-text-secondary);
    text-decoration: none;
    transition: color 0.15s ease;
}

.kb-card-sublinks li:first-child a {
    border-top: none;
    padding-top: 0;
}

.kb-card-sublinks a::before {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    background-image: url("data:image/svg+xml,%3Csvg width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' xmlns='http://www.w3.org/2000/svg'%3E%3Cpolyline points='9 18 15 12 9 6'/%3E%3C/svg%3E");
    background-size: 16px;
    background-repeat: no-repeat;
    flex-shrink: 0;
    transition: transform 0.15s ease;
}

.kb-card-sublinks a:hover {
    color: var(--kb-accent);
    text-decoration: none;
}

.kb-card-sublinks a:hover::before {
    transform: translateX(2px);
    background-image: url("data:image/svg+xml,%3Csvg width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%232ADDFF' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' xmlns='http://www.w3.org/2000/svg'%3E%3Cpolyline points='9 18 15 12 9 6'/%3E%3C/svg%3E");
}

/* Card title link (for cards with nested sub-links) */
.kb-card-title-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    text-decoration: none;
    gap: 8px;
}

.kb-card-title-link:hover {
    text-decoration: none;
}

.kb-card-title-link:hover .kb-card-title {
    color: var(--kb-accent);
}

.kb-card-title-link .kb-card-arrow {
    position: static;
    opacity: 0;
    transform: translateX(-4px);
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.kb-card-title-link:hover .kb-card-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* Arrow for regular <a> cards */
a.kb-card .kb-card-arrow {
    position: absolute;
    top: 24px;
    right: 24px;
    color: var(--kb-text-muted);
    opacity: 0;
    transform: translateX(-4px);
    transition: all 0.2s ease;
}

a.kb-card:hover .kb-card-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* Home page doesn't need the TOC sidebar */
.kb-content--home + .kb-sidebar-right,
.kb-content--home ~ .kb-sidebar-right {
    display: none;
}

/* Responsive card grid */
@media (max-width: 600px) {
    .kb-card-grid {
        grid-template-columns: 1fr;
    }
}