/* RMG Diagram & Organogram Studio Stylesheet */
:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #eef2ff;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --slate-900: #0f172a;
    --slate-800: #1e293b;
    --slate-700: #334155;
    --slate-600: #475569;
    --slate-500: #64748b;
    --slate-200: #e2e8f0;
    --slate-100: #f1f5f9;
    --slate-50: #f8fafc;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius-md: 8px;
    --radius-lg: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Inter', system-ui, -apple-system, sans-serif; background-color: var(--slate-50); color: var(--slate-800); }

/* Header */
.studio-header {
    background: #ffffff;
    border-bottom: 1px solid var(--slate-200);
    position: sticky;
    top: 0;
    z-index: 40;
    box-shadow: var(--shadow-sm);
}
.header-container {
    max-width: 1380px;
    margin: 0 auto;
    padding: 14px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.brand-area { display: flex; align-items: center; gap: 12px; }
.brand-logo {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, #4f46e5, #3b82f6);
    color: #ffffff;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 4px 10px rgba(79, 70, 229, 0.3);
}
.brand-title { font-size: 19px; font-weight: 700; color: var(--slate-900); }
.brand-subtitle { font-size: 12px; color: var(--slate-500); display: block; }

.header-actions { display: flex; align-items: center; gap: 10px; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 16px;
    font-size: 13.5px;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.15s ease;
    border: 1px solid transparent;
    text-decoration: none;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-outline { background: #fff; border-color: var(--slate-200); color: var(--slate-700); }
.btn-outline:hover { background: var(--slate-100); border-color: var(--slate-300); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #059669; }
.btn-ghost { background: transparent; color: var(--slate-600); }
.btn-ghost:hover { background: var(--slate-100); }
.btn-sm { padding: 6px 12px; font-size: 12.5px; }

/* Main Content */
.main-content { max-width: 1380px; margin: 0 auto; padding: 24px; width: 100%; flex: 1; }

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: #ffffff;
    padding: 16px 20px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--slate-200);
    display: flex;
    align-items: center;
    gap: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}
.stat-value { font-size: 22px; font-weight: 700; color: var(--slate-900); display: block; }
.stat-label { font-size: 12px; font-weight: 500; color: var(--slate-500); }

/* Toolbar */
.toolbar-section {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
}
.search-box {
    position: relative;
    flex: 1;
    min-width: 280px;
    max-width: 420px;
}
.search-box i.fa-magnifying-glass {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--slate-400);
    font-size: 14px;
}
.search-box input {
    width: 100%;
    padding: 10px 38px 10px 38px;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-md);
    font-size: 13.5px;
    background: #ffffff;
    outline: none;
    transition: border-color 0.15s;
}
.search-box input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1); }
.clear-search {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--slate-400);
    cursor: pointer;
}

.category-pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pill-btn {
    padding: 6px 14px;
    border-radius: 9999px;
    border: 1px solid var(--slate-200);
    background: #ffffff;
    font-size: 12.5px;
    font-weight: 500;
    color: var(--slate-600);
    cursor: pointer;
    transition: all 0.15s;
}
.pill-btn:hover { background: var(--slate-100); }
.pill-btn.active { background: var(--slate-800); border-color: var(--slate-800); color: #ffffff; }

/* Diagram Cards Grid */
.diagrams-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}
.diagram-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--slate-200);
    overflow: hidden;
    transition: all 0.2s ease;
    display: flex;
    flex-col;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
}
.diagram-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: var(--slate-300); }

.card-preview {
    height: 170px;
    background: #f8fafc;
    border-bottom: 1px solid var(--slate-200);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}
.card-preview img { width: 100%; height: 100%; object-fit: contain; padding: 12px; }
.card-preview-placeholder {
    color: var(--slate-400);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.star-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255,255,255,0.9);
    border: 1px solid var(--slate-200);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--slate-400);
    transition: all 0.15s;
}
.star-btn.starred { color: #f59e0b; background: #ffffff; }
.star-btn:hover { transform: scale(1.1); }

.card-body { padding: 16px; flex: 1; display: flex; flex-direction: column; justify-content: space-between; }
.card-meta { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--slate-900);
    text-decoration: none;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.card-title:hover { color: var(--primary); }
.card-desc {
    font-size: 12px;
    color: var(--slate-500);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 12px;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--slate-100);
    padding-top: 12px;
    font-size: 11.5px;
    color: var(--slate-500);
}
.card-actions { display: flex; gap: 6px; }
.icon-action-btn {
    background: none;
    border: none;
    padding: 6px;
    color: var(--slate-400);
    border-radius: 4px;
    cursor: pointer;
}
.icon-action-btn:hover { background: var(--slate-100); color: var(--slate-700); }
.icon-action-btn.btn-delete:hover { color: var(--danger); background: #fee2e2; }

/* Badges */
.badge { display: inline-flex; align-items: center; padding: 3px 8px; font-size: 11px; font-weight: 600; border-radius: 9999px; }
.badge-emerald { background: #dcfce7; color: #15803d; }
.badge-amber { background: #fef3c7; color: #b45309; }
.badge-purple { background: #f3e8ff; color: #7e22ce; }
.badge-blue { background: #e0f2fe; color: #0369a1; }
.badge-slate { background: #f1f5f9; color: #475569; }

/* Modals */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 16px;
}
.modal-backdrop.active { display: flex; }
.modal-card {
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.2);
    width: 100%;
    max-width: 580px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: modalPop 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.modal-card.modal-lg { max-width: 820px; }
.modal-card.modal-sm { max-width: 420px; }

@keyframes modalPop {
    from { opacity: 0; transform: scale(0.96); }
    to { opacity: 1; transform: scale(1); }
}

.modal-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--slate-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal-title-area { display: flex; align-items: center; gap: 12px; }
.modal-icon { width: 40px; height: 40px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; font-size: 18px; }
.modal-title { font-size: 16px; font-weight: 700; color: var(--slate-900); }
.modal-subtitle { font-size: 12px; color: var(--slate-500); }
.modal-close { background: none; border: none; font-size: 18px; color: var(--slate-400); cursor: pointer; }
.modal-close:hover { color: var(--slate-700); }

.modal-body { padding: 20px 24px; overflow-y: auto; }
.modal-footer {
    padding: 14px 24px;
    background: var(--slate-50);
    border-top: 1px solid var(--slate-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 12.5px; font-weight: 600; color: var(--slate-700); margin-bottom: 6px; }
.form-control {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--slate-300);
    border-radius: var(--radius-md);
    font-size: 13.5px;
    outline: none;
    background: #ffffff;
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1); }
.label-with-action { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.btn-link { background: none; border: none; color: var(--primary); font-size: 12px; font-weight: 600; cursor: pointer; }
.btn-link:hover { text-decoration: underline; }

/* CSV Dropzone */
.csv-upload-dropzone {
    border: 2px dashed var(--slate-300);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    cursor: pointer;
    background: var(--slate-50);
    transition: all 0.15s;
    margin-bottom: 14px;
}
.csv-upload-dropzone:hover { border-color: var(--primary); background: var(--primary-light); }
.dropzone-icon { font-size: 32px; color: var(--primary); margin-bottom: 8px; }
.dropzone-text { font-size: 13.5px; font-weight: 600; color: var(--slate-700); }
.dropzone-text span { color: var(--primary); text-decoration: underline; }
.dropzone-sub { font-size: 11.5px; color: var(--slate-500); margin-top: 4px; }
.or-divider { text-align: center; position: relative; margin: 16px 0; }
.or-divider::before { content: ''; position: absolute; left: 0; top: 50%; width: 100%; height: 1px; background: var(--slate-200); }
.or-divider span { position: relative; background: #ffffff; padding: 0 12px; font-size: 11px; font-weight: 700; color: var(--slate-400); }
.selected-file-badge { background: #e0f2fe; color: #0369a1; padding: 6px 12px; border-radius: var(--radius-md); font-size: 12px; font-weight: 600; margin-bottom: 12px; }

/* Templates Grid */
.templates-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); 
    gap: 18px; 
}
.template-card {
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}
.template-card:hover { 
    border-color: var(--primary); 
    transform: translateY(-3px); 
    box-shadow: 0 12px 24px -4px rgba(79, 70, 229, 0.12), 0 4px 6px -2px rgba(0, 0, 0, 0.05); 
}
.template-preview { 
    height: 140px; 
    background-color: #f8fafc;
    background-image: radial-gradient(#cbd5e1 1.2px, transparent 1.2px);
    background-size: 14px 14px;
    border-bottom: 1px solid var(--slate-200);
    display: flex; 
    align-items: center; 
    justify-content: center; 
    position: relative;
    overflow: hidden;
    padding: 8px;
}
.template-preview svg {
    width: 100%;
    height: 100%;
    max-height: 124px;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.04));
    transition: transform 0.25s ease;
}
.template-card:hover .template-preview svg {
    transform: scale(1.04);
}
.template-meta { 
    padding: 14px 16px; 
    display: flex;
    flex-direction: column;
    flex: 1;
    justify-content: space-between;
}
.template-meta h4 { 
    font-size: 14.5px; 
    font-weight: 700; 
    color: var(--slate-900);
    margin-bottom: 4px; 
}
.template-meta p { 
    font-size: 12px; 
    color: var(--slate-500); 
    margin-bottom: 12px; 
    line-height: 1.45; 
}
.template-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 10px;
    border-top: 1px dashed var(--slate-200);
}

/* -------------------------------------------------------------
 * Editor Workspace Styles
 * ------------------------------------------------------------- */
.editor-body { height: 100vh; overflow: hidden; display: flex; flex-direction: column; }
.editor-header {
    height: 52px;
    background: #ffffff;
    border-bottom: 1px solid var(--slate-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 16px;
    z-index: 30;
}
.editor-header-left { display: flex; align-items: center; gap: 12px; flex: 1; }
.editor-back-btn {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-md);
    background: var(--slate-100);
    color: var(--slate-700);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: background 0.15s;
}
.editor-back-btn:hover { background: var(--slate-200); }

.editor-title-container { display: flex; align-items: center; gap: 8px; max-width: 450px; flex: 1; }
.editor-title-input {
    border: 1px solid transparent;
    padding: 4px 8px;
    font-size: 15px;
    font-weight: 700;
    color: var(--slate-900);
    border-radius: 4px;
    outline: none;
    width: 100%;
}
.editor-title-input:hover { border-color: var(--slate-300); }
.editor-title-input:focus { border-color: var(--primary); background: #ffffff; }

.editor-category-select {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 6px;
    border-radius: 9999px;
    border: 1px solid var(--slate-200);
    background: var(--slate-100);
    color: var(--slate-700);
    outline: none;
    cursor: pointer;
}

.editor-header-center { display: flex; align-items: center; justify-content: center; }
.save-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 500;
    padding: 4px 10px;
    border-radius: 9999px;
}
.save-status-badge.synced { color: #059669; background: #ecfdf5; }
.save-status-badge.saving { color: #d97706; background: #fffbeb; }
.save-status-badge.unsaved { color: #dc2626; background: #fef2f2; }

.editor-header-right { display: flex; align-items: center; gap: 8px; }

.editor-canvas-container { flex: 1; width: 100%; height: calc(100vh - 52px); position: relative; }
.drawio-iframe { width: 100%; height: 100%; border: none; display: block; }

/* Dropdown */
.dropdown-wrapper { position: relative; }
.dropdown-menu {
    position: absolute;
    right: 0;
    top: calc(100% + 6px);
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    width: 200px;
    display: none;
    z-index: 50;
    padding: 6px 0;
}
.dropdown-menu.active { display: block; }
.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 14px;
    font-size: 12.5px;
    color: var(--slate-700);
    text-decoration: none;
    cursor: pointer;
}
.dropdown-item:hover { background: var(--slate-100); color: var(--slate-900); }

/* Toasts */
.toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 999; display: flex; flex-direction: column; gap: 10px; }
.toast {
    background: var(--slate-900);
    color: #ffffff;
    padding: 12px 18px;
    border-radius: var(--radius-md);
    font-size: 13px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-lg);
    animation: toastSlide 0.25s ease;
}
.toast.success { background: #065f46; }
.toast.error { background: #991b1b; }
@keyframes toastSlide { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* -------------------------------------------------------------
 * Keyboard Shortcuts Modal Styles
 * ------------------------------------------------------------- */
.shortcuts-search-container {
    position: relative;
    margin-bottom: 18px;
}
.shortcuts-search-container i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--slate-400);
    font-size: 13px;
}
.shortcuts-search-input {
    width: 100%;
    padding: 9px 12px 9px 38px;
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-md);
    font-size: 13px;
    outline: none;
    background: var(--slate-50);
    transition: all 0.15s;
}
.shortcuts-search-input:focus {
    background: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.shortcuts-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-height: 55vh;
    overflow-y: auto;
    padding-right: 6px;
}

.shortcut-category-group {
    background: var(--slate-50);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-md);
    padding: 14px 16px;
}
.shortcut-category-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--slate-800);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.shortcut-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 8px 16px;
}
.shortcut-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
    border-bottom: 1px dashed var(--slate-200);
}
.shortcut-row:last-child {
    border-bottom: none;
}
.shortcut-desc {
    font-size: 12.5px;
    color: var(--slate-600);
    font-weight: 500;
}
.shortcut-keys {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 11.5px;
    color: var(--slate-500);
}

kbd {
    display: inline-block;
    padding: 2px 7px;
    font-size: 11px;
    font-weight: 700;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    color: var(--slate-800);
    background-color: #ffffff;
    border: 1px solid var(--slate-300);
    border-bottom: 2px solid var(--slate-400);
    border-radius: 4px;
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.08);
    white-space: nowrap;
}

/* -------------------------------------------------------------
 * Template Library Styles
 * ------------------------------------------------------------- */
.template-filter-tab {
    background: none;
    border: none;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 600;
    color: var(--slate-600);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.15s;
}
.template-filter-tab:hover {
    color: var(--primary);
}
.template-filter-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.btn-use-template {
    font-size: 11.5px;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.template-card:hover .btn-use-template {
    text-decoration: underline;
}

/* -------------------------------------------------------------
 * Preview Mode Header & Overlay Badges
 * ------------------------------------------------------------- */
.preview-mode-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #fef3c7;
    border: 1px solid #fde68a;
    color: #92400e;
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 9999px;
}

.preview-overlay-tag {
    position: absolute;
    bottom: 8px;
    background: rgba(15, 23, 42, 0.8);
    color: #ffffff;
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 9999px;
    backdrop-filter: blur(4px);
    opacity: 0;
    transform: translateY(4px);
    transition: all 0.2s ease;
}
.template-card:hover .preview-overlay-tag {
    opacity: 1;
    transform: translateY(0);
}

.btn-preview-link {
    font-size: 11.5px;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.template-card:hover .btn-preview-link {
    text-decoration: underline;
}

/* -------------------------------------------------------------
 * Preview Mode Bottom Floating Bar
 * ------------------------------------------------------------- */
.preview-bottom-bar {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    gap: 24px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
    z-index: 100;
}
.preview-bottom-info {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #ffffff;
}
.preview-bottom-info strong {
    display: block;
    font-size: 13px;
    color: #ffffff;
}
.preview-bottom-info span {
    font-size: 11.5px;
    color: #94a3b8;
}

/* -------------------------------------------------------------
 * Full-Screen Luxury Template Library Styles
 * ------------------------------------------------------------- */
.modal-card.modal-library {
    width: 95vw;
    max-width: 1400px;
    height: 90vh;
    max-height: 920px;
    border-radius: 18px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: #ffffff;
    box-shadow: 0 25px 60px -15px rgba(15, 23, 42, 0.35);
    border: 1px solid rgba(226, 232, 240, 0.9);
}

.modal-library-header {
    padding: 16px 28px;
    background: #ffffff;
    border-bottom: 1px solid var(--slate-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

.library-header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.library-search-box {
    position: relative;
    width: 320px;
}
.library-search-box i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--slate-400);
    font-size: 13px;
}
.library-search-box input {
    width: 100%;
    padding: 8px 14px 8px 36px;
    border-radius: 9999px;
    border: 1px solid var(--slate-300);
    background: var(--slate-50);
    font-size: 12.5px;
    outline: none;
    transition: all 0.15s ease;
}
.library-search-box input:focus {
    background: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

.library-filter-bar {
    padding: 10px 28px;
    display: flex;
    gap: 10px;
    background: #f8fafc;
    border-bottom: 1px solid var(--slate-200);
    align-items: center;
    flex-shrink: 0;
    overflow-x: auto;
}

.template-filter-tab {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 18px;
    border-radius: 9999px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--slate-600);
    border: 1px solid var(--slate-200);
    background: #ffffff;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.15s ease;
}
.template-filter-tab:hover {
    background: var(--slate-100);
    color: var(--slate-900);
    border-color: var(--slate-300);
}
.template-filter-tab.active {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.28);
}
.tab-count-badge {
    background: rgba(0, 0, 0, 0.08);
    padding: 1px 7px;
    border-radius: 9999px;
    font-size: 11px;
    font-weight: 700;
}
.template-filter-tab.active .tab-count-badge {
    background: rgba(255, 255, 255, 0.25);
    color: #ffffff;
}

.library-body {
    padding: 24px 28px;
    overflow-y: auto;
    background: #f8fafc;
    flex: 1;
}

.templates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 22px;
}

.template-card {
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: 14px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}
.template-card:hover {
    border-color: #818cf8;
    transform: translateY(-4px);
    box-shadow: 0 16px 30px -6px rgba(79, 70, 229, 0.15), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
}

.template-preview {
    height: 160px;
    width: 100%;
    position: relative;
    background-color: #ffffff;
    background-image: radial-gradient(#cbd5e1 1.2px, transparent 1.2px);
    background-size: 14px 14px;
    border-bottom: 1px solid var(--slate-100);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    overflow: hidden;
}
.template-preview svg {
    width: 100%;
    height: 100%;
    max-height: 140px;
    object-fit: contain;
    filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.06));
    transition: transform 0.25s ease;
}
.template-card:hover .template-preview svg {
    transform: scale(1.05);
}

.template-preview-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(3px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 10;
}
.template-card:hover .template-preview-overlay {
    opacity: 1;
}
.overlay-preview-btn {
    background: #ffffff;
    color: #0f172a;
    font-size: 12.5px;
    font-weight: 700;
    padding: 9px 20px;
    border-radius: 9999px;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
    transform: translateY(4px);
    transition: all 0.2s ease;
}
.template-card:hover .overlay-preview-btn {
    transform: translateY(0);
}

.template-meta {
    padding: 16px 18px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: #ffffff;
}
.template-meta h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.template-meta p {
    font-size: 12.5px;
    color: var(--slate-500);
    margin-bottom: 14px;
    line-height: 1.45;
    min-height: 36px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.template-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 1px solid var(--slate-100);
}
.btn-preview-link {
    font-size: 12px;
    font-weight: 700;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: gap 0.15s ease;
}
.template-card:hover .btn-preview-link {
    gap: 8px;
}

.library-footer {
    padding: 14px 28px;
    background: #ffffff;
    border-top: 1px solid var(--slate-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}
.library-footer-tip {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--slate-600);
}
.library-footer-tip code {
    background: var(--slate-100);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    color: var(--slate-800);
}

/* -------------------------------------------------------------
 * Ultra-Professional Full-Screen Template Hub Styles
 * ------------------------------------------------------------- */
.template-hub-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: #f8fafc;
    display: flex;
    flex-direction: column;
    opacity: 0;
    visibility: hidden;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.template-hub-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Hub Header */
.hub-header {
    height: 70px;
    background: #ffffff;
    border-bottom: 1px solid var(--slate-200);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 32px;
    flex-shrink: 0;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.hub-header-left {
    display: flex;
    align-items: center;
    gap: 14px;
}
.hub-brand-badge {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, #4f46e5 0%, #3730a3 100%);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 6px 16px rgba(79, 70, 229, 0.35);
}
.hub-brand-title {
    font-size: 17px;
    font-weight: 800;
    color: var(--slate-900);
    line-height: 1.2;
}
.hub-brand-subtitle {
    font-size: 12px;
    color: var(--slate-500);
    font-weight: 500;
}

.hub-header-center {
    flex: 1;
    max-width: 480px;
    margin: 0 24px;
}
.hub-search-wrapper {
    position: relative;
    width: 100%;
}
.hub-search-wrapper i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--slate-400);
    font-size: 14px;
}
.hub-search-wrapper input {
    width: 100%;
    padding: 10px 100px 10px 42px;
    border-radius: 9999px;
    border: 1.5px solid var(--slate-300);
    background: var(--slate-50);
    font-size: 13px;
    outline: none;
    transition: all 0.2s ease;
}
.hub-search-wrapper input:focus {
    background: #ffffff;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.12);
}
.hub-search-shortcut {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 11px;
    font-weight: 700;
    color: var(--slate-400);
    background: var(--slate-200);
    padding: 2px 8px;
    border-radius: 6px;
    pointer-events: none;
}

.hub-header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}
.hub-close-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--slate-100);
    border: none;
    color: var(--slate-600);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.15s ease;
}
.hub-close-btn:hover {
    background: var(--slate-200);
    color: var(--slate-900);
}

/* Hub Main Layout */
.hub-container {
    flex: 1;
    display: flex;
    overflow: hidden;
}

/* Left Sidebar */
.hub-sidebar {
    width: 290px;
    background: #ffffff;
    border-right: 1px solid var(--slate-200);
    padding: 24px 18px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow-y: auto;
    flex-shrink: 0;
}
.hub-sidebar-heading {
    display: block;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.06em;
    color: var(--slate-400);
    margin-bottom: 12px;
    padding-left: 10px;
}
.hub-nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.hub-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: 10px;
    border: none;
    background: transparent;
    cursor: pointer;
    text-align: left;
    width: 100%;
    transition: all 0.15s ease;
}
.hub-nav-item:hover {
    background: var(--slate-100);
}
.hub-nav-item.active {
    background: #eef2ff;
}
.hub-nav-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: all 0.15s ease;
}
.hub-nav-label {
    flex: 1;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--slate-700);
}
.hub-nav-item.active .hub-nav-label {
    color: var(--primary);
    font-weight: 700;
}
.hub-nav-count {
    font-size: 11.5px;
    font-weight: 700;
    color: var(--slate-500);
    background: var(--slate-100);
    padding: 2px 8px;
    border-radius: 9999px;
}
.hub-nav-item.active .hub-nav-count {
    background: #e0e7ff;
    color: var(--primary);
}

.hub-sidebar-card {
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    border: 1px solid var(--slate-200);
    border-radius: 12px;
    padding: 16px;
    margin-top: 24px;
}
.hub-card-icon {
    font-size: 22px;
    margin-bottom: 8px;
}
.hub-sidebar-card h4 {
    font-size: 13px;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 4px;
}
.hub-sidebar-card p {
    font-size: 11.5px;
    color: var(--slate-600);
    line-height: 1.45;
}
.hub-sidebar-card code {
    background: #ffffff;
    padding: 1px 5px;
    border-radius: 4px;
    border: 1px solid var(--slate-200);
    font-family: monospace;
    font-size: 10.5px;
    color: var(--primary);
}

/* Right Content Canvas */
.hub-content-area {
    flex: 1;
    overflow-y: auto;
    padding: 32px 40px 60px 40px;
    background: #f8fafc;
}
.hub-content-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 28px;
    border-bottom: 1px solid var(--slate-200);
    padding-bottom: 18px;
}
.hub-section-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--slate-900);
    letter-spacing: -0.02em;
}
.hub-section-desc {
    font-size: 13.5px;
    color: var(--slate-500);
    margin-top: 4px;
}
.hub-stats-badge {
    background: #ffffff;
    border: 1px solid var(--slate-200);
    color: var(--slate-700);
    font-size: 12px;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 9999px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

/* Large Blueprint Grid */
.hub-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 28px;
}

.hub-card {
    background: #ffffff;
    border: 1px solid var(--slate-200);
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.hub-card:hover {
    border-color: #818cf8;
    transform: translateY(-5px);
    box-shadow: 0 20px 35px -8px rgba(79, 70, 229, 0.16), 0 8px 12px -4px rgba(0, 0, 0, 0.05);
}

/* Preview Section */
.hub-card-preview {
    height: 190px;
    background-color: #ffffff;
    background-image: radial-gradient(#cbd5e1 1.3px, transparent 1.3px);
    background-size: 15px 15px;
    border-bottom: 1px solid var(--slate-100);
    position: relative;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    overflow: hidden;
}
.hub-svg-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
}
.hub-card:hover .hub-svg-wrapper {
    transform: scale(1.06);
}
.hub-card-preview svg {
    max-width: 100%;
    max-height: 160px;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.08));
}

.hub-card-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 10;
}
.hub-card:hover .hub-card-overlay {
    opacity: 1;
}
.hub-btn-preview {
    background: #ffffff;
    color: #0f172a;
    font-size: 12.5px;
    font-weight: 700;
    padding: 10px 22px;
    border-radius: 9999px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    transform: translateY(6px);
    transition: all 0.2s ease;
}
.hub-card:hover .hub-btn-preview {
    transform: translateY(0);
}

/* Bottom Content */
.hub-card-body {
    padding: 20px 22px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.hub-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}
.hub-file-type {
    font-size: 11.5px;
    font-weight: 600;
    color: var(--slate-400);
}
.hub-card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 6px;
    line-height: 1.35;
}
.hub-card-desc {
    font-size: 12.5px;
    color: var(--slate-500);
    line-height: 1.5;
    margin-bottom: 18px;
    min-height: 38px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.hub-card-footer {
    display: flex;
    gap: 10px;
    align-items: center;
    padding-top: 14px;
    border-top: 1px solid var(--slate-100);
}

/* -------------------------------------------------------------
 * Main Dashboard Card Previews
 * ------------------------------------------------------------- */
.card-preview {
    height: 175px;
    background-color: #ffffff;
    background-image: radial-gradient(#cbd5e1 1.2px, transparent 1.2px);
    background-size: 14px 14px;
    border-bottom: 1px solid var(--slate-100);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    padding: 12px;
}
.card-svg-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.diagram-card:hover .card-svg-wrapper {
    transform: scale(1.05);
}
.card-preview svg {
    max-width: 100%;
    max-height: 150px;
    filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.07));
}
.card-preview-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(3px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 5;
}
.diagram-card:hover .card-preview-overlay {
    opacity: 1;
}
.card-preview-btn {
    background: #ffffff;
    color: #0f172a;
    font-size: 12px;
    font-weight: 700;
    padding: 8px 18px;
    border-radius: 9999px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
    transform: translateY(4px);
    transition: all 0.2s ease;
}
.diagram-card:hover .card-preview-btn {
    transform: translateY(0);
}