/* =========================================================================
   Diagram Integration Hub Styles
   ========================================================================= */

/* Header */
.dh-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
    gap: 16px;
    flex-wrap: wrap;
}

.dh-header h1 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary, #abb2bf);
    margin: 0;
}

.dh-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted, #5c6370);
    margin: 4px 0 0 0;
}

.dh-header-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

/* Buttons */
.dh-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.dh-btn-primary {
    background: var(--accent-blue, #6c8aff);
    color: #fff;
}
.dh-btn-primary:hover {
    background: var(--accent-blue-hover, #5a7aff);
    transform: translateY(-1px);
}

.dh-btn-accent {
    background: linear-gradient(135deg, #7aa2f7, #bb9af7);
    color: #fff;
    border: none;
    font-weight: 600;
}
.dh-btn-accent:hover {
    filter: brightness(1.15);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(122, 162, 247, 0.3);
}

.dh-btn-secondary {
    background: var(--bg-tertiary, #2c313a);
    color: var(--text-primary, #abb2bf);
    border: 1px solid var(--border-color, #3e4452);
}
.dh-btn-secondary:hover {
    background: var(--bg-hover, #353b45);
}

.dh-asset-toolbar {
    margin-bottom: 16px;
}

.dh-btn-ghost {
    background: transparent;
    color: var(--text-secondary, #828997);
    border: 1px solid var(--border-color, #3e4452);
}
.dh-btn-ghost:hover {
    background: var(--bg-tertiary, #2c313a);
    color: var(--text-primary, #abb2bf);
}

.dh-btn-danger {
    background: transparent;
    color: var(--red, #e06c75);
    border: 1px solid transparent;
}
.dh-btn-danger:hover {
    background: rgba(224, 108, 117, 0.1);
}

.dh-btn-sm {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border: none;
    border-radius: 4px;
    font-size: 0.78rem;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

/* Stats Row */
.dh-stats-row {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.dh-stat-card {
    background: var(--bg-secondary, #21252b);
    border: 1px solid var(--border-color, #3e4452);
    border-radius: 8px;
    padding: 14px 18px;
    min-width: 100px;
    text-align: center;
}

.dh-stat-card.dh-stat-cat {
    min-width: 80px;
}

.dh-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary, #abb2bf);
    line-height: 1;
}

.dh-stat-label {
    font-size: 0.72rem;
    color: var(--text-muted, #5c6370);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Tabs */
.dh-tabs {
    display: flex;
    gap: 2px;
    border-bottom: 2px solid var(--border-color, #3e4452);
    margin-bottom: 20px;
}

.dh-tab {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    color: var(--text-muted, #5c6370);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
}

.dh-tab:hover {
    color: var(--text-primary, #abb2bf);
    background: var(--bg-tertiary, #2c313a);
}

.dh-tab.active {
    color: var(--accent-blue, #6c8aff);
    border-bottom-color: var(--accent-blue, #6c8aff);
}

/* Empty State */
.dh-empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted, #5c6370);
}

.dh-empty-state svg {
    margin-bottom: 16px;
    opacity: 0.5;
}

.dh-empty-state h3 {
    color: var(--text-primary, #abb2bf);
    margin: 0 0 8px 0;
    font-size: 1.1rem;
}

.dh-empty-state p {
    max-width: 400px;
    margin: 0 auto 20px auto;
    font-size: 0.85rem;
    line-height: 1.5;
}

/* Application Grid */
.dh-app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 16px;
}

.dh-app-card {
    background: var(--bg-secondary, #21252b);
    border: 1px solid var(--border-color, #3e4452);
    border-radius: 10px;
    overflow: hidden;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.dh-app-card:hover {
    border-color: var(--accent-blue, #6c8aff);
    box-shadow: 0 2px 12px var(--hover-glow, rgba(108, 138, 255, 0.08));
}

.dh-app-card-header {
    padding: 16px 16px 8px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 8px;
}

.dh-app-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary, #abb2bf);
}

.dh-app-cat-badge {
    font-size: 0.68rem;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 500;
    white-space: nowrap;
    flex-shrink: 0;
}

.dh-app-card-body {
    padding: 0 16px 12px;
}

.dh-app-desc {
    font-size: 0.82rem;
    color: var(--text-secondary, #828997);
    margin: 0 0 8px 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.dh-app-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 8px;
}

.dh-meta-item {
    font-size: 0.75rem;
    color: var(--text-muted, #5c6370);
}

.dh-meta-item strong {
    color: var(--text-secondary, #828997);
}

.dh-app-stats {
    display: flex;
    gap: 12px;
}

.dh-app-stat {
    font-size: 0.75rem;
    color: var(--text-muted, #5c6370);
    background: var(--bg-tertiary, #2c313a);
    padding: 2px 8px;
    border-radius: 4px;
}

.dh-app-card-actions {
    display: flex;
    gap: 4px;
    padding: 8px 16px 12px;
    border-top: 1px solid var(--border-color, #3e4452);
}

.dh-app-card-actions .dh-btn-sm {
    flex: 1;
    justify-content: center;
}

.dh-app-card-actions .dh-btn-primary {
    background: var(--accent-blue, #6c8aff);
    color: #fff;
}
.dh-app-card-actions .dh-btn-primary:hover {
    background: var(--accent-blue-hover, #5a7aff);
}

.dh-app-card-actions .dh-btn-ghost {
    background: transparent;
    color: var(--text-secondary, #828997);
    border: 1px solid var(--border-color, #3e4452);
}
.dh-app-card-actions .dh-btn-ghost:hover {
    background: var(--bg-tertiary, #2c313a);
}

.dh-app-card-actions .dh-btn-danger {
    background: transparent;
    color: var(--red, #e06c75);
}
.dh-app-card-actions .dh-btn-danger:hover {
    background: rgba(224, 108, 117, 0.1);
}

/* Diagram Grid */
.dh-diagram-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.dh-diagram-card {
    background: var(--bg-secondary, #21252b);
    border: 1px solid var(--border-color, #3e4452);
    border-radius: 10px;
    overflow: hidden;
    transition: border-color 0.15s ease;
}

.dh-diagram-card:hover {
    border-color: var(--accent-blue, #6c8aff);
}

.dh-diagram-preview {
    height: 160px;
    background: var(--bg-primary, #282c34);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-bottom: 1px solid var(--border-color, #3e4452);
}

.dh-diagram-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.dh-embed-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted, #5c6370);
    font-size: 0.8rem;
}

.dh-embed-badge.dh-no-file {
    opacity: 0.5;
}

.dh-diagram-info {
    padding: 12px 14px;
}

.dh-diagram-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary, #abb2bf);
    margin-bottom: 6px;
}

.dh-diagram-meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
    margin-bottom: 4px;
}

.dh-diagram-type-badge {
    font-size: 0.68rem;
    padding: 1px 6px;
    border-radius: 4px;
    background: var(--accent-blue, #6c8aff)20;
    color: var(--accent-blue, #6c8aff);
    border: 1px solid var(--accent-blue, #6c8aff)30;
}

.dh-diagram-source-badge {
    font-size: 0.68rem;
    padding: 1px 6px;
    border-radius: 4px;
    background: var(--bg-tertiary, #2c313a);
    color: var(--text-muted, #5c6370);
}

.dh-diagram-version {
    font-size: 0.68rem;
    color: var(--text-muted, #5c6370);
}

.dh-diagram-app-link {
    font-size: 0.75rem;
    color: var(--text-muted, #5c6370);
    margin-top: 4px;
}

.dh-diagram-cats {
    display: flex;
    gap: 4px;
    margin-top: 6px;
}

.dh-cat-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.dh-diagram-card-actions {
    display: flex;
    gap: 4px;
    padding: 8px 14px 10px;
    border-top: 1px solid var(--border-color, #3e4452);
    justify-content: flex-end;
}

.dh-diagram-card-actions .dh-btn-sm {
    background: transparent;
    color: var(--text-muted, #5c6370);
    border: 1px solid var(--border-color, #3e4452);
    border-radius: 4px;
}

.dh-diagram-card-actions .dh-btn-sm:hover {
    background: var(--bg-tertiary, #2c313a);
    color: var(--text-primary, #abb2bf);
}

.dh-diagram-card-actions .dh-btn-danger:hover {
    background: rgba(224, 108, 117, 0.1);
    color: var(--red, #e06c75);
    border-color: var(--red, #e06c75);
}

/* Filter Bar */
.dh-filter-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: var(--bg-secondary, #21252b);
    border: 1px solid var(--border-color, #3e4452);
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 0.85rem;
    color: var(--text-secondary, #828997);
}

/* Scoping Table */
.dh-scoping-overview h3 {
    font-size: 1.1rem;
    color: var(--text-primary, #abb2bf);
    margin: 0 0 4px 0;
}

.dh-scoping-desc {
    font-size: 0.82rem;
    color: var(--text-muted, #5c6370);
    margin: 0 0 20px 0;
    line-height: 1.5;
}

.dh-scope-table-wrap {
    overflow-x: auto;
    margin-bottom: 24px;
}

.dh-scope-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
}

.dh-scope-table th {
    text-align: left;
    padding: 10px 12px;
    background: var(--bg-tertiary, #2c313a);
    color: var(--text-secondary, #828997);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border-color, #3e4452);
}

.dh-scope-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color, #3e4452);
    color: var(--text-primary, #abb2bf);
}

.dh-scope-table tr:hover td {
    background: var(--bg-secondary, #21252b);
}

.dh-cat-badge-sm {
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 500;
    white-space: nowrap;
}

.dh-status-complete {
    color: var(--green, #98c379);
    font-weight: 600;
    font-size: 0.78rem;
}

.dh-status-partial {
    color: var(--yellow, #e5c07b);
    font-weight: 600;
    font-size: 0.78rem;
}

.dh-status-missing {
    color: var(--red, #e06c75);
    font-weight: 600;
    font-size: 0.78rem;
}

.dh-status-note {
    display: block;
    font-size: 0.7rem;
    color: var(--text-muted, #5c6370);
    font-weight: 400;
}

/* Scope Legend */
.dh-scope-legend {
    background: var(--bg-secondary, #21252b);
    border: 1px solid var(--border-color, #3e4452);
    border-radius: 8px;
    padding: 16px;
}

.dh-scope-legend h4 {
    font-size: 0.85rem;
    color: var(--text-primary, #abb2bf);
    margin: 0 0 12px 0;
}

.dh-legend-items {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 8px;
}

.dh-legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    color: var(--text-secondary, #828997);
}

.dh-legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.dh-legend-item strong {
    color: var(--text-primary, #abb2bf);
}

/* Connections View */
.dh-connections-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.dh-connections-header h3 {
    font-size: 1.1rem;
    color: var(--text-primary, #abb2bf);
    margin: 0;
}

.dh-connections-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.dh-connection-row {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    background: var(--bg-secondary, #21252b);
    border: 1px solid var(--border-color, #3e4452);
    border-radius: 8px;
    flex-wrap: wrap;
}

.dh-conn-apps {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--text-primary, #abb2bf);
    font-size: 0.9rem;
}

.dh-conn-arrow {
    color: var(--accent-blue, #6c8aff);
    font-size: 1.2rem;
}

.dh-conn-details {
    display: flex;
    gap: 8px;
    align-items: center;
}

.dh-conn-data-type {
    font-size: 0.72rem;
    padding: 2px 8px;
    border-radius: 4px;
    background: var(--accent-blue, #6c8aff)15;
    color: var(--accent-blue, #6c8aff);
    font-weight: 500;
}

.dh-conn-protocol {
    font-size: 0.72rem;
    padding: 2px 8px;
    border-radius: 4px;
    background: var(--bg-tertiary, #2c313a);
    color: var(--text-muted, #5c6370);
}

.dh-conn-encrypted {
    font-size: 0.72rem;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 500;
}

.dh-conn-encrypted.yes {
    background: rgba(152, 195, 121, 0.1);
    color: var(--green, #98c379);
}

.dh-conn-encrypted.no {
    background: rgba(224, 108, 117, 0.1);
    color: var(--red, #e06c75);
}

.dh-conn-desc {
    width: 100%;
    font-size: 0.78rem;
    color: var(--text-muted, #5c6370);
    margin-top: 4px;
}

/* =========================================================================
   Modal Styles
   ========================================================================= */

.dh-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 20px;
}

.dh-modal {
    background: var(--bg-primary, #282c34);
    border: 1px solid var(--border-color, #3e4452);
    border-radius: 12px;
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.dh-modal-wide {
    max-width: 720px;
}

.dh-modal-viewer {
    max-width: 900px;
}

.dh-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color, #3e4452);
    flex-wrap: wrap;
    gap: 8px;
}

.dh-modal-header h3 {
    font-size: 1.1rem;
    color: var(--text-primary, #abb2bf);
    margin: 0;
}

.dh-modal-close {
    background: none;
    border: none;
    color: var(--text-muted, #5c6370);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
}

.dh-modal-close:hover {
    color: var(--text-primary, #abb2bf);
}

.dh-modal-body {
    padding: 20px;
}

.dh-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 12px 20px;
    border-top: 1px solid var(--border-color, #3e4452);
}

/* Form Elements */
.dh-form-group {
    margin-bottom: 14px;
}

.dh-form-group label {
    display: block;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary, #828997);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.dh-form-group input[type="text"],
.dh-form-group textarea,
.dh-form-group select {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-secondary, #21252b);
    border: 1px solid var(--border-color, #3e4452);
    border-radius: 6px;
    color: var(--text-primary, #abb2bf);
    font-size: 0.85rem;
    font-family: inherit;
    transition: border-color 0.15s ease;
    box-sizing: border-box;
}

.dh-form-group input:focus,
.dh-form-group textarea:focus,
.dh-form-group select:focus {
    outline: none;
    border-color: var(--accent-blue, #6c8aff);
}

.dh-form-group textarea {
    min-height: 60px;
    resize: vertical;
}

.dh-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

/* Source Grid */
.dh-source-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 8px;
}

.dh-source-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 12px 8px;
    background: var(--bg-secondary, #21252b);
    border: 2px solid var(--border-color, #3e4452);
    border-radius: 8px;
    color: var(--text-muted, #5c6370);
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.15s ease;
}

.dh-source-btn:hover {
    border-color: var(--accent-blue, #6c8aff);
    color: var(--text-primary, #abb2bf);
}

.dh-source-btn.active {
    border-color: var(--accent-blue, #6c8aff);
    background: var(--accent-blue, #6c8aff)10;
    color: var(--accent-blue, #6c8aff);
}

/* Import Area */
.dh-import-section {
    margin-top: 8px;
}

.dh-import-desc {
    font-size: 0.78rem;
    color: var(--text-muted, #5c6370);
    margin: 0 0 8px 0;
}

.dh-import-url {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-secondary, #21252b);
    border: 1px solid var(--border-color, #3e4452);
    border-radius: 6px;
    color: var(--text-primary, #abb2bf);
    font-size: 0.85rem;
    box-sizing: border-box;
}

.dh-import-url:focus {
    outline: none;
    border-color: var(--accent-blue, #6c8aff);
}

.dh-mermaid-input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-secondary, #21252b);
    border: 1px solid var(--border-color, #3e4452);
    border-radius: 6px;
    color: var(--text-primary, #abb2bf);
    font-size: 0.82rem;
    font-family: 'SF Mono', 'Fira Code', monospace;
    resize: vertical;
    box-sizing: border-box;
}

.dh-mermaid-input:focus {
    outline: none;
    border-color: var(--accent-blue, #6c8aff);
}

/* Upload Area */
.dh-upload-area {
    border: 2px dashed var(--border-color, #3e4452);
    border-radius: 8px;
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.15s ease;
    color: var(--text-muted, #5c6370);
}

.dh-upload-area:hover,
.dh-upload-area.drag-over {
    border-color: var(--accent-blue, #6c8aff);
    background: var(--accent-blue, #6c8aff)08;
}

.dh-upload-area p {
    margin: 8px 0 0 0;
    font-size: 0.82rem;
}

/* Checkbox Group */
.dh-checkbox-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.dh-checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--text-secondary, #828997);
    cursor: pointer;
}

.dh-checkbox-label input[type="checkbox"] {
    accent-color: var(--accent-blue, #6c8aff);
}

/* Upload Status */
.dh-uploading {
    padding: 10px;
    text-align: center;
    color: var(--accent-blue, #6c8aff);
    font-size: 0.82rem;
}

.dh-upload-error {
    padding: 10px;
    text-align: center;
    color: var(--red, #e06c75);
    font-size: 0.82rem;
}

/* Viewer */
.dh-viewer-body {
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary, #21252b);
}

.dh-viewer-img {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
}

.dh-viewer-iframe {
    width: 100%;
    height: 60vh;
    border: none;
}

.dh-viewer-meta {
    display: flex;
    gap: 8px;
    align-items: center;
}

.dh-viewer-desc {
    padding: 12px 20px;
    font-size: 0.82rem;
    color: var(--text-secondary, #828997);
    border-top: 1px solid var(--border-color, #3e4452);
}

.dh-viewer-file,
.dh-viewer-empty {
    text-align: center;
    padding: 40px;
    color: var(--text-muted, #5c6370);
}

.dh-mermaid-preview {
    padding: 20px;
    width: 100%;
}

.dh-mermaid-preview pre {
    background: var(--bg-primary, #282c34);
    padding: 16px;
    border-radius: 6px;
    overflow-x: auto;
    font-size: 0.82rem;
    color: var(--text-primary, #abb2bf);
}

.dh-mermaid-note {
    font-size: 0.78rem;
    color: var(--text-muted, #5c6370);
    margin-top: 12px;
}

.dh-mermaid-note a {
    color: var(--accent-blue, #6c8aff);
}

/* =========================================================================
   Responsive
   ========================================================================= */

@media (max-width: 768px) {
    .dh-header {
        flex-direction: column;
    }

    .dh-stats-row {
        flex-wrap: wrap;
    }

    .dh-stat-card {
        flex: 1;
        min-width: 70px;
    }

    .dh-tabs {
        overflow-x: auto;
    }

    .dh-app-grid {
        grid-template-columns: 1fr;
    }

    .dh-diagram-grid {
        grid-template-columns: 1fr;
    }

    .dh-form-row {
        grid-template-columns: 1fr;
    }

    .dh-source-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .dh-connection-row {
        flex-direction: column;
        align-items: flex-start;
    }
}