/* ========================================================
   REFERENCE ARCHITECTURE DETAIL PAGE
======================================================== */
.arch-page-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-10) var(--space-6);
}

.arch-header {
    margin-bottom: var(--space-8);
    border-bottom: 1px solid var(--color-border-dark);
    padding-bottom: var(--space-6);
}

.arch-eyebrow {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.category-tag,
.status-badge,
.level-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-label);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1;
    padding: 3px 8px;
    border: 1px solid currentColor;
    border-radius: 0;
}

.category-tag {
    color: var(--accent-blue-400);
}

.status-published {
    color: var(--bs-success);
}

.status-ready_to_publish {
    color: var(--accent-amber-400);
}

.level-badge {
    color: var(--accent-violet-400, #a78bfa);
}

/* Expert verification strip */
.verified-by-strip {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-3);
    background: var(--color-bg-canvas-raised);
    border: 1px solid var(--color-border-dark);
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-8);
}

.verified-by-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-label);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--bs-success);
}

.verified-by-label .material-icons {
    font-size: 18px;
}

.verified-by-people {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.verified-person {
    font-size: var(--text-small);
    color: #FFFFFF;
    text-decoration: none;
    padding: 2px 10px;
    background: var(--color-bg-surface-dark);
    border: 1px solid var(--color-border-dark);
}

a.verified-person:hover {
    border-color: var(--accent-blue-400);
    color: var(--accent-blue-300);
}

/* Extra detail grid: industrial use cases & architecture decisions */
.arch-extra-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.detail-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.detail-list-item {
    border-left: 2px solid var(--color-border-dark);
    padding-left: var(--space-4);
}

.detail-list-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-3);
    margin-bottom: var(--space-1);
}

.detail-list-name {
    font-size: var(--text-body);
    font-weight: 700;
    color: #FFFFFF;
}

.detail-list-tag {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.detail-list-desc {
    font-size: var(--text-small);
    color: var(--color-text-on-dark-muted);
    line-height: 1.6;
    margin: 0;
}

.arch-title {
    font-size: 32px;
    font-weight: 800;
    color: #FFFFFF;
    margin: 0 0 var(--space-2) 0;
    line-height: 1.2;
}

.arch-subtitle {
    font-size: var(--text-h3);
    color: var(--color-text-on-dark-muted);
    margin: 0;
}

.arch-meta-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.meta-card {
    background: var(--color-bg-canvas-raised);
    border: 1px solid var(--color-border-dark);
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.meta-label {
    font-size: var(--text-label);
    color: var(--color-text-on-dark-faint);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.meta-value {
    font-size: var(--text-h3);
    font-weight: 600;
}

.arch-main-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

@media (max-width: 992px) {
    .arch-main-grid {
        grid-template-columns: 1fr;
    }
    .arch-meta-grid {
        grid-template-columns: 1fr;
    }
}

.arch-content-left,
.arch-content-right {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.arch-section-card {
    background: var(--color-bg-canvas-raised);
    border: 1px solid var(--color-border-dark);
    padding: var(--space-6);
}

.card-section-title {
    font-size: var(--text-h3);
    font-weight: 700;
    color: #FFFFFF;
    margin: 0 0 var(--space-4) 0;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.card-icon {
    font-size: 20px;
}

.card-section-text {
    font-size: var(--text-body);
    color: var(--color-text-on-dark-muted);
    line-height: 1.6;
    margin: 0;
}

.tech-tags-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.tech-involved-tag {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-1) var(--space-3);
    background: var(--color-bg-surface-dark);
    border: 1px solid var(--color-border-dark);
    font-size: var(--text-label);
    color: #FFFFFF;
    text-decoration: none;
    transition: all 0.15s ease;
    cursor: default;
}

/* Active technology link tags — blue hover and pointer */
a.tech-involved-tag,
.tech-involved-tag.is-active,
a.tech-involved-tag.link-tag {
    cursor: pointer;
    color: #FFFFFF;
}

a.tech-involved-tag:hover,
.tech-involved-tag.is-active:hover,
a.tech-involved-tag.link-tag:hover,
.tech-tags-group a.tech-involved-tag:hover {
    border-color: var(--accent-blue-400);
    background: rgba(59, 130, 246, 0.15);
    color: #FFFFFF;
    transform: translateY(-1px);
}

/* Inactive technology tags (no page generated yet) — no hover effect and no pointer */
span.tech-involved-tag,
.tech-involved-tag.is-inactive {
    cursor: default;
    color: rgba(255, 255, 255, 0.65);
    border-color: var(--color-border-dark);
    background: var(--color-bg-surface-dark);
    pointer-events: none;
}

span.tech-involved-tag:hover,
.tech-involved-tag.is-inactive:hover {
    border-color: var(--color-border-dark);
    background: var(--color-bg-surface-dark);
    color: rgba(255, 255, 255, 0.65);
    transform: none;
}

.arch-diagram-section {
    background: var(--color-bg-canvas-raised);
    border: 1px solid var(--color-border-dark);
    padding: var(--space-6);
    margin-bottom: var(--space-8);
}

.diagram-section-title {
    font-size: var(--text-h3);
    font-weight: 700;
    color: #FFFFFF;
    margin: 0 0 var(--space-6) 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mermaid-container {
    background: #0d1122;
    padding: var(--space-6);
    border: 1px solid var(--color-border-dark);
    overflow-x: auto;
}

.arch-error-state {
    text-align: center;
    padding: var(--space-16) var(--space-6);
    border: 1px dashed var(--color-border-dark);
    background: var(--color-bg-canvas-raised);
}

.error-icon {
    font-size: 48px;
    color: var(--bs-danger);
    margin-bottom: var(--space-4);
}

/* ========================================================
   SEARCH CATALOG LAYOUT & CARDS
======================================================== */
.arch-search-wrapper {
    position: relative;
    width: 100%;
    max-width: 600px;
    margin-top: var(--space-4);
}

.arch-search-input {
    width: 100%;
    padding: var(--space-3) var(--space-4) var(--space-3) var(--space-10);
    background: var(--color-bg-canvas-raised);
    border: 1px solid var(--color-border-dark);
    color: #FFFFFF;
    font-size: var(--text-body);
    outline: none;
    transition: all 0.2s ease;
}

.arch-search-input:focus {
    border-color: var(--accent-blue-400);
    box-shadow: 0 0 0 1px var(--accent-blue-400);
}

.search-input-icon {
    position: absolute;
    left: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-on-dark-faint);
}

/* Controls layout */
.arch-controls-row {
    display: flex;
    gap: var(--space-4);
    align-items: center;
    margin-top: var(--space-4);
    width: 100%;
}

.arch-search-wrapper {
    flex-grow: 1;
    max-width: 600px;
    margin-top: 0 !important;
}

.arch-filter-wrapper {
    min-width: 200px;
}

.arch-filter-select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-canvas-raised);
    border: 1px solid var(--color-border-dark);
    color: #FFFFFF;
    font-size: var(--text-body);
    outline: none;
    transition: all 0.2s ease;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    background-size: 20px;
}

.arch-filter-select:focus {
    border-color: var(--accent-blue-400);
}

@media (max-width: 768px) {
    .arch-controls-row {
        flex-direction: column;
        align-items: stretch;
    }
    .arch-search-wrapper {
        max-width: 100%;
    }
}

.arch-search-loading {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-small);
    color: var(--color-text-on-dark-muted);
    margin-bottom: var(--space-6);
}

/* Grid Layout */
.arch-grid-layout {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    margin-top: var(--space-6);
}

@media (max-width: 992px) {
    .arch-grid-layout {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .arch-grid-layout {
        grid-template-columns: 1fr;
    }
}

/* Category Filters */
.arch-category-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-6);
    margin-bottom: var(--space-2);
    border-bottom: 1px solid var(--color-border-dark);
    padding-bottom: var(--space-4);
}

.arch-category-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-bg-surface-dark);
    border: 1px solid var(--color-border-dark);
    color: var(--color-text-on-dark-muted);
    font-size: var(--text-label);
    font-weight: 700;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s ease;
}

.arch-category-btn:hover {
    border-color: rgba(255, 255, 255, 0.15);
    color: #FFFFFF;
}

.arch-category-btn.active {
    background: var(--accent-blue-950);
    border-color: var(--accent-blue-400);
    color: #FFFFFF;
}

.category-btn-count {
    font-size: 10px;
    background: rgba(255, 255, 255, 0.08);
    padding: 2px 6px;
    border-radius: 2px;
}

.arch-category-btn.active .category-btn-count {
    background: var(--accent-blue-700);
}

/* Catalog Card */
.arch-catalog-card {
    display: flex;
    flex-direction: column;
    background: var(--color-bg-canvas-raised);
    border: 1px solid var(--color-border-dark);
    padding: var(--space-6);
    text-decoration: none;
    transition: all 0.2s ease;
}

.arch-catalog-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.card-category-badge {
    align-self: flex-start;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent-blue-400);
    margin-bottom: var(--space-3);
}

.card-arch-title {
    font-size: 18px;
    font-weight: 700;
    color: #FFFFFF;
    margin: 0 0 var(--space-2) 0;
    line-height: 1.4;
}

.card-arch-usecase {
    font-size: var(--text-small);
    color: var(--color-text-on-dark-muted);
    line-height: 1.5;
    margin: 0 0 var(--space-6) 0;
    flex-grow: 1;
}

.card-arch-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--color-border-dark);
    padding-top: var(--space-3);
}

.card-tech-badge {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-on-dark-faint);
}

.card-explore-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: var(--text-label);
    font-weight: 700;
    text-transform: uppercase;
    color: var(--accent-blue-400);
}

.arch-catalog-card:hover .card-explore-link {
    color: var(--accent-blue-300);
}

.search-results-meta {
    font-size: var(--text-small);
    color: var(--color-text-on-dark-faint);
    margin-bottom: var(--space-4);
}

.arch-empty-state {
    text-align: center;
    padding: var(--space-12) var(--space-6);
    background: var(--color-bg-canvas-raised);
    border: 1px dashed var(--color-border-dark);
    color: var(--color-text-on-dark-muted);
}

.arch-empty-state span {
    font-size: 32px;
    margin-bottom: var(--space-2);
}

/* Pagination styling */
.arch-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-4);
    margin-top: var(--space-10);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border-dark);
}

.pag-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: var(--space-2) var(--space-4);
    background: var(--color-bg-canvas-raised);
    border: 1px solid var(--color-border-dark);
    color: #FFFFFF;
    font-size: var(--text-label);
    font-weight: 700;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s ease;
}

.pag-btn:hover:not(:disabled) {
    border-color: var(--accent-blue-400);
    background: var(--color-bg-surface-dark);
}

.pag-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.pag-info {
    font-size: var(--text-small);
    color: var(--color-text-on-dark-faint);
}


/* ========================================================
   CATALOG HUB LANDING PAGE STYLES
======================================================== */
.catalog-hub-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    margin-top: var(--space-4);
    align-items: stretch;
}

@media (max-width: 900px) {
    .catalog-hub-grid {
        grid-template-columns: 1fr;
    }
}

.catalog-hub-card {
    background: var(--color-bg-canvas-raised);
    border: 1px solid var(--color-border-dark);
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: all 0.2s ease;
}

.catalog-hub-card:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, 0.2);
}

.catalog-hub-card.border-violet:hover {
    border-color: var(--accent-violet-400);
}

.catalog-hub-card.border-blue:hover {
    border-color: var(--accent-blue-400);
}

.catalog-hub-top-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
}

.catalog-hub-title-link {
    text-decoration: none;
    display: block;
    margin-bottom: var(--space-4);
}

.catalog-hub-title-link:hover .catalog-hub-title {
    color: var(--accent-blue-300);
}

.catalog-hub-title-row {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.catalog-hub-icon-wrap {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border-dark);
    background: var(--color-bg-surface-dark);
    flex-shrink: 0;
}

.catalog-hub-icon-wrap .material-icons {
    font-size: 24px;
}

.icon-violet {
    color: var(--accent-violet-400);
    border-color: rgba(167, 139, 250, 0.3);
}

.icon-blue {
    color: var(--accent-blue-400);
    border-color: rgba(96, 165, 250, 0.3);
}

.catalog-hub-title {
    font-size: 20px;
    font-weight: 700;
    color: #FFFFFF;
    margin: 0 0 2px 0;
    transition: color 0.2s ease;
}

.catalog-hub-meta {
    font-size: var(--text-small);
    color: var(--color-text-on-dark-muted);
}

.catalog-hub-desc {
    font-size: var(--text-body);
    color: var(--color-text-on-dark-muted);
    line-height: 1.6;
    margin: 0 0 var(--space-6) 0;
    flex-grow: 1;
}

.catalog-hub-tags-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-6);
}

.link-tag {
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.link-tag:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.3);
    color: #FFFFFF;
    transform: translateY(-1px);
}

.catalog-hub-action {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--color-border-dark);
    padding-top: var(--space-4);
    font-size: var(--text-small);
    font-weight: 700;
    text-decoration: none;
    margin-top: auto;
    transition: opacity 0.2s ease;
}

.catalog-hub-action:hover {
    opacity: 0.85;
}

.catalog-domain-section {
    margin-top: var(--space-16, 64px);
    padding-top: var(--space-10, 40px);
    border-top: 1px solid var(--color-border-dark);
}

.catalog-domain-section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: var(--space-8);
}

@media (max-width: 768px) {
    .catalog-domain-section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-4);
    }
}

.catalog-domain-section-title {
    font-size: var(--text-h2);
    font-weight: 700;
    color: #FFFFFF;
    margin: 0 0 var(--space-2) 0;
}

.catalog-domain-section-subtitle {
    font-size: var(--text-small);
    color: var(--color-text-on-dark-muted);
    margin: 0;
}

.catalog-domains-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
}

@media (max-width: 992px) {
    .catalog-domains-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .catalog-domains-grid {
        grid-template-columns: 1fr;
    }
}

.catalog-domain-card {
    background: var(--color-bg-surface-dark);
    border: 1px solid var(--color-border-dark);
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 72px;
    gap: 4px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.catalog-domain-card:hover {
    border-color: var(--accent-blue-400);
    transform: translateY(-2px);
    background: var(--color-bg-canvas-raised);
}

.catalog-domain-title {
    font-size: var(--text-body);
    font-weight: 700;
    color: #FFFFFF;
}

.catalog-domain-count {
    font-size: var(--text-label);
    color: var(--color-text-on-dark-faint);
}