/* ==========================================================================
   PROJECT 4-1 VAULT & UNIVERSAL IN-BROWSER ENGINEERING VIEWER
   Industrial Dark-Tech Theme (IS 456:2000 & SP 34 • Seismic Zone II)
   ========================================================================== */

:root {
    --vault-bg: #090c13;
    --vault-surface: #0f141f;
    --vault-surface-2: #161c2a;
    --vault-surface-3: #1f2739;
    --vault-border: rgba(255, 215, 0, 0.22);
    --vault-border-light: rgba(255, 255, 255, 0.08);
    --vault-gold: #f59e0b;
    --vault-gold-bright: #fbbf24;
    --vault-text: #f1f5f9;
    --vault-text-dim: #94a3b8;
    --vault-text-muted: #64748b;
    --vault-blue: #38bdf8;
    --vault-green: #34d399;
    --vault-red: #f87171;
    --vault-purple: #c084fc;
}

/* Modal Overlay */
.vault-modal {
    position: fixed;
    inset: 0;
    background: rgba(4, 7, 12, 0.88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    z-index: 99999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1.5vh 1.5vw;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.vault-modal.active {
    display: flex;
    opacity: 1;
}

/* Modal Window Container */
.vault-window {
    width: 96vw;
    max-width: 1550px;
    height: 94vh;
    background: var(--vault-bg);
    border: 1px solid var(--vault-border);
    border-radius: 12px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.9), 0 0 30px rgba(245, 158, 11, 0.12);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    color: var(--vault-text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    contain: layout paint;
}

/* Header Bar */
.vault-header {
    background: var(--vault-surface);
    border-bottom: 1px solid var(--vault-border);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    z-index: 10;
}

.vault-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.vault-icon-badge {
    width: 42px;
    height: 42px;
    border-radius: 8px;
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--vault-gold-bright);
    font-size: 1.25rem;
}

.vault-title-group h3 {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 10px;
}

.vault-stage-tag {
    font-size: 0.68rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 4px;
    background: rgba(52, 211, 153, 0.15);
    color: var(--vault-green);
    border: 1px solid rgba(52, 211, 153, 0.3);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.vault-meta {
    font-size: 0.76rem;
    color: var(--vault-text-dim);
    margin-top: 2px;
}

/* Search and Filters */
.vault-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    max-width: 650px;
}

.vault-search-box {
    position: relative;
    flex: 1;
}

.vault-search-box i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--vault-text-muted);
    font-size: 0.85rem;
}

.vault-search-input {
    width: 100%;
    background: var(--vault-surface-2);
    border: 1px solid var(--vault-border-light);
    border-radius: 6px;
    padding: 7px 12px 7px 34px;
    color: var(--vault-text);
    font-size: 0.82rem;
    outline: none;
    transition: all 0.2s;
}

.vault-search-input:focus {
    border-color: var(--vault-gold);
    box-shadow: 0 0 10px rgba(245, 158, 11, 0.2);
}

.vault-filter-pills {
    display: flex;
    gap: 6px;
}

.vault-pill {
    background: var(--vault-surface-2);
    border: 1px solid var(--vault-border-light);
    color: var(--vault-text-dim);
    padding: 5px 10px;
    border-radius: 5px;
    font-size: 0.74rem;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.vault-pill:hover, .vault-pill.active {
    background: rgba(245, 158, 11, 0.16);
    border-color: var(--vault-gold);
    color: var(--vault-gold-bright);
}

/* Project Switcher in Header */
.vault-project-switcher {
    display: inline-flex;
    align-items: center;
    background: rgba(15, 23, 42, 0.9);
    border: 1px solid rgba(255, 215, 0, 0.25);
    border-radius: 8px;
    padding: 3px;
    gap: 4px;
}

.vault-proj-btn {
    background: transparent;
    border: none;
    color: var(--vault-text-dim);
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.vault-proj-btn:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.06);
}

.vault-proj-btn.active {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #0b0f17;
    font-weight: 700;
    box-shadow: 0 2px 10px rgba(245, 158, 11, 0.35);
}

.vault-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.vault-icon-btn {
    background: var(--vault-surface-2);
    border: 1px solid var(--vault-border-light);
    color: var(--vault-text-dim);
    width: 34px;
    height: 34px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.95rem;
}

.vault-icon-btn:hover {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.3);
}

.vault-close-btn {
    background: rgba(248, 113, 113, 0.12);
    border: 1px solid rgba(248, 113, 113, 0.3);
    color: var(--vault-red);
}

.vault-close-btn:hover {
    background: rgba(248, 113, 113, 0.25);
    color: #ffffff;
}

/* Vault Body Layout */
.vault-body {
    display: flex;
    flex: 1;
    overflow: hidden;
    position: relative;
}

/* Sidebar / File Tree */
.vault-sidebar {
    width: 340px;
    min-width: 300px;
    background: var(--vault-surface);
    border-right: 1px solid var(--vault-border-light);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.vault-sidebar-header {
    padding: 10px 14px;
    background: var(--vault-surface-2);
    border-bottom: 1px solid var(--vault-border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.76rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--vault-text-dim);
}

.vault-tree-container {
    flex: 1;
    overflow-y: auto;
    padding: 8px 6px;
}

/* Tree Node Styling */
.tree-node {
    margin: 1px 0;
    user-select: none;
}

.tree-folder-row, .tree-file-row {
    display: flex;
    align-items: center;
    padding: 5px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    color: var(--vault-text-dim);
    transition: background 0.15s, color 0.15s;
    gap: 7px;
}

.tree-folder-row:hover, .tree-file-row:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
}

.tree-file-row.active {
    background: rgba(245, 158, 11, 0.16);
    border-left: 2px solid var(--vault-gold);
    color: var(--vault-gold-bright);
    font-weight: 500;
}

.tree-folder-caret {
    font-size: 0.7rem;
    width: 14px;
    text-align: center;
    color: var(--vault-text-muted);
    transition: transform 0.2s;
}

.tree-node.expanded > .tree-folder-row > .tree-folder-caret {
    transform: rotate(90deg);
}

.tree-folder-children {
    display: none;
    margin-left: 14px;
    border-left: 1px dashed rgba(255, 255, 255, 0.1);
    padding-left: 2px;
}

.tree-node.expanded > .tree-folder-children {
    display: block;
}

.tree-badge-count {
    margin-left: auto;
    font-size: 0.68rem;
    color: var(--vault-text-muted);
    background: rgba(255, 255, 255, 0.05);
    padding: 1px 6px;
    border-radius: 10px;
}

.tree-file-size {
    margin-left: auto;
    font-size: 0.68rem;
    color: var(--vault-text-muted);
}

/* Icon colors */
.icon-folder { color: #facc15; }
.icon-cad { color: #38bdf8; }
.icon-excel { color: #34d399; }
.icon-word { color: #60a5fa; }
.icon-pdf { color: #f87171; }
.icon-code { color: #fbbf24; }
.icon-image { color: #c084fc; }
.icon-archive { color: #94a3b8; }

/* Right Viewport Area */
.vault-viewport {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--vault-bg);
    overflow: hidden;
    position: relative;
}

/* Viewport Action Bar */
.viewport-action-bar {
    background: var(--vault-surface);
    border-bottom: 1px solid var(--vault-border-light);
    padding: 8px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.viewport-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--vault-text-dim);
    white-space: nowrap;
    overflow-x: auto;
    max-width: 65%;
}

.viewport-breadcrumbs span.active-file {
    color: #ffffff;
    font-weight: 600;
}

.viewport-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-viewport-action {
    background: var(--vault-surface-2);
    border: 1px solid var(--vault-border-light);
    color: var(--vault-text);
    padding: 5px 12px;
    border-radius: 5px;
    font-size: 0.76rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
}

.btn-viewport-action:hover {
    background: rgba(245, 158, 11, 0.2);
    border-color: var(--vault-gold);
    color: var(--vault-gold-bright);
}

.btn-viewport-action.btn-download-primary {
    background: var(--vault-gold);
    color: #000000;
    border-color: var(--vault-gold-bright);
    font-weight: 600;
}

.btn-viewport-action.btn-download-primary:hover {
    background: var(--vault-gold-bright);
    color: #000;
}

/* Viewport Stages */
.viewport-stage {
    flex: 1;
    display: none !important;
    overflow: auto;
    position: relative;
    width: 100%;
    height: 100%;
}

.viewport-stage.active {
    display: flex !important;
}

/* CAD DXF Stage - Pure Architectural White Canvas & Drafting Board */
#dxfStage {
    background: #ffffff !important;
    position: relative;
    flex-direction: column;
    overflow: hidden;
}

.cad-canvas-container {
    flex: 1;
    width: 100%;
    height: 100%;
    position: relative;
    background: #ffffff !important;
    cursor: crosshair;
    overflow: hidden;
}

.cad-canvas-container,
#cadCanvas {
    cursor: crosshair !important;
    background: #ffffff !important;
}

#cadCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
}

.cad-controls-overlay {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(15, 23, 42, 0.15);
    border-radius: 8px;
    padding: 6px 10px;
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 10;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.12), 0 8px 10px -6px rgba(0, 0, 0, 0.08);
}

.cad-btn {
    background: #f8fafc;
    border: 1px solid rgba(15, 23, 42, 0.18);
    color: #0f172a;
    border-radius: 6px;
    padding: 6px 12px;
    font-size: 0.76rem;
    font-weight: 600;
    font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.cad-btn:hover {
    background: #0f172a;
    color: #ffffff;
    border-color: #0f172a;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.2);
}

.cad-meta-overlay {
    position: absolute;
    top: 16px;
    left: 16px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(15, 23, 42, 0.15);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 0.76rem;
    color: #334155;
    pointer-events: none;
    z-index: 10;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.12), 0 8px 10px -6px rgba(0, 0, 0, 0.08);
}

.cad-meta-overlay strong {
    color: #0f172a;
    font-size: 0.84rem;
    font-weight: 700;
    display: block;
    margin-bottom: 3px;
    font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Excel Spreadsheet Stage - Pure White Background & Crisp Black Table/Text */
#excelStage {
    flex-direction: column;
    background: #ffffff !important;
    overflow: hidden;
}

.excel-sheet-tabs {
    background: #f8fafc;
    border-bottom: 1px solid #cbd5e1;
    padding: 8px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    overflow-x: auto;
    flex-shrink: 0;
}

.excel-tabs-group {
    display: flex;
    gap: 6px;
    align-items: center;
}

.excel-tab {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    color: #334155;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.76rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.excel-tab:hover {
    background: #f1f5f9;
    color: #0f172a;
    border-color: #94a3b8;
}

.excel-tab.active {
    background: #0f172a;
    border-color: #0f172a;
    color: #ffffff;
    box-shadow: 0 2px 6px rgba(15, 23, 42, 0.15);
    font-weight: 700;
}

.excel-toolbar-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 10px;
}

.excel-search-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.excel-search-input-wrap i {
    position: absolute;
    left: 10px;
    color: #64748b;
    font-size: 0.74rem;
    pointer-events: none;
}

.excel-search-input {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    color: #0f172a;
    font-size: 0.76rem;
    padding: 6px 10px 6px 28px;
    border-radius: 6px;
    outline: none;
    width: 180px;
    transition: all 0.2s;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.excel-search-input:focus {
    border-color: #0f172a;
    box-shadow: 0 0 0 3px rgba(15, 23, 42, 0.1);
    width: 220px;
}

.excel-export-btn {
    background: #0f172a;
    border: 1px solid #0f172a;
    color: #ffffff;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.74rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
    box-shadow: 0 2px 4px rgba(15, 23, 42, 0.15);
}

.excel-export-btn:hover {
    background: #1e293b;
    border-color: #1e293b;
    color: #ffffff;
    transform: translateY(-1px);
}

.excel-badge {
    font-size: 0.72rem;
    color: #334155;
    background: #f1f5f9;
    padding: 5px 10px;
    border-radius: 4px;
    border: 1px solid #cbd5e1;
    white-space: nowrap;
    font-weight: 600;
}

.excel-table-container {
    flex: 1;
    overflow: auto;
    padding: 0;
    background: #ffffff !important;
}

.excel-table {
    border-collapse: collapse;
    width: 100%;
    font-size: 0.80rem;
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    white-space: nowrap;
    background: #ffffff !important;
}

.excel-table th, .excel-table td {
    border: 1px solid #cbd5e1;
    padding: 7px 12px;
    text-align: left;
}

.excel-table th {
    background: #f1f5f9;
    color: #0f172a;
    position: sticky;
    top: 0;
    z-index: 5;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.74rem;
    letter-spacing: 0.5px;
    border: 1px solid #cbd5e1;
    border-bottom: 2px solid #0f172a;
}

.excel-table td {
    color: #000000 !important;
    background: #ffffff;
}

.excel-table tr:nth-child(even) td {
    background: #f8fafc;
}

.excel-table tr:hover td {
    background: #e2e8f0;
    color: #000000 !important;
}

.excel-row-num {
    background: #f1f5f9 !important;
    color: #475569 !important;
    font-weight: 700;
    text-align: center !important;
    width: 46px;
    position: sticky;
    left: 0;
    z-index: 4;
    border: 1px solid #cbd5e1 !important;
    border-right: 2px solid #94a3b8 !important;
}

/* Word Document Stage */
#wordStage {
    display: none !important;
    padding: 0;
    background: #11141d;
    overflow-y: auto;
    width: 100%;
    height: 100%;
    box-sizing: border-box;
}

#wordStage.active {
    display: block !important;
}

#wordContent {
    width: 100%;
    min-height: 100%;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Word Toolbar */
.word-doc-toolbar {
    position: sticky;
    top: 0;
    z-index: 10;
    width: 100%;
    background: rgba(18, 24, 38, 0.95);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 10px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-sizing: border-box;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
}

.word-toolbar-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #e2e8f0;
    font-size: 0.88rem;
    font-weight: 500;
}

.word-toolbar-badge {
    background: rgba(234, 179, 8, 0.15);
    color: #facc15;
    border: 1px solid rgba(234, 179, 8, 0.3);
    border-radius: 9999px;
    padding: 2px 10px;
    font-size: 0.76rem;
    font-weight: 600;
}

.word-toolbar-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.word-btn {
    background: rgba(255, 255, 255, 0.08);
    color: #f1f5f9;
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}

.word-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: #facc15;
    color: #ffffff;
}

/* Paginated Pages Container */
.word-pages-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 36px;
    padding: 36px 20px 80px 20px;
    width: 100%;
    box-sizing: border-box;
}

/* Individual A4 Word Page */
.word-page {
    background: #ffffff !important;
    width: 820px;
    min-height: 1160px;
    height: auto;
    padding: 0;
    box-sizing: border-box;
    border-radius: 4px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.55), 0 0 1px rgba(0, 0, 0, 0.85);
    position: relative;
    overflow: hidden;
}

.word-page-sheet-img {
    width: 100%;
    aspect-ratio: 1 / 1.4142;
    height: auto;
    display: block;
    background: #ffffff;
}

/* Page Running Header */
.word-page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #cbd5e1;
    padding-bottom: 8px;
    margin-bottom: 24px;
    font-size: 0.75rem;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.word-header-doc {
    font-weight: 600;
}

.word-header-chap {
    max-width: 320px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Page Body */
.word-page-body {
    flex: 1 1 auto;
    font-size: 0.95rem;
    line-height: 1.8;
}

/* Headings */
.word-chap-title {
    color: #0f172a !important;
    font-size: 1.45rem;
    font-weight: 700;
    margin-top: 10px;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid #0284c7;
    letter-spacing: -0.2px;
}

.word-sec-heading {
    color: #0369a1 !important;
    font-size: 1.15rem;
    font-weight: 700;
    margin-top: 20px;
    margin-bottom: 10px;
}

.word-body-para {
    color: #334155 !important;
    margin-bottom: 14px;
    font-size: 0.95rem;
    text-align: justify;
    line-height: 1.8;
}

/* Tables */
.word-table-title {
    font-size: 0.88rem;
    color: #0f172a;
    margin: 16px 0 6px 0;
    font-weight: 600;
}

.word-table-wrapper {
    width: 100%;
    overflow-x: auto;
    margin: 12px 0 20px 0;
}

.word-doc-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.84rem;
    line-height: 1.5;
}

.word-doc-table th,
.word-doc-table td {
    border: 1px solid #cbd5e1;
    padding: 8px 12px;
    text-align: left;
}

.word-doc-table th {
    background: #f1f5f9 !important;
    color: #0f172a !important;
    font-weight: 700;
    border-bottom: 2px solid #94a3b8;
}

.word-doc-table tr:nth-child(even) td {
    background: #f8fafc;
}

.word-doc-table td {
    color: #334155 !important;
}

/* Figures & Images */
.word-doc-figure {
    margin: 18px auto;
    text-align: center;
    max-width: 100%;
}

.word-doc-figure img {
    max-width: 100%;
    max-height: 480px;
    height: auto;
    object-fit: contain;
    border: 1px solid #e2e8f0;
    border-radius: 4px;
    padding: 6px;
    background: #ffffff;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.word-fig-caption {
    font-size: 0.8rem;
    color: #64748b;
    font-style: italic;
    margin-top: 6px;
    text-align: center;
}

/* Page Running Footer */
.word-page-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #cbd5e1;
    padding-top: 10px;
    margin-top: 24px;
    font-size: 0.75rem;
    color: #64748b;
}

.word-footer-page {
    font-weight: 600;
    color: #0f172a;
}

/* PDF Stage (Native Browser Controls) */
#pdfStage {
    width: 100%;
    height: 100%;
    overflow: hidden;
    display: none;
    flex-direction: column;
    background: #0b0f19;
}

#pdfStage.active {
    display: flex !important;
}

.vault-pdf-frame {
    width: 100%;
    height: 100%;
    border: none;
    background: #111827;
    display: block;
    cursor: auto !important;
}

.pdf-secure-toolbar {
    position: sticky;
    top: 0;
    z-index: 15;
    width: 100%;
    background: rgba(15, 23, 42, 0.96);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 10px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-sizing: border-box;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    gap: 16px;
}

.pdf-toolbar-left {
    display: flex;
    align-items: center;
    gap: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.pdf-doc-title {
    font-size: 0.88rem;
    font-weight: 600;
    color: #f1f5f9;
}

.pdf-badge-locked {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.35);
    color: #f87171;
    border-radius: 9999px;
    padding: 2px 10px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.pdf-toolbar-center {
    display: flex;
    align-items: center;
    gap: 10px;
}

.pdf-tb-btn {
    background: #1e293b;
    border: 1px solid #334155;
    color: #e2e8f0;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.82rem;
    transition: all 0.15s ease;
}

.pdf-tb-btn:hover {
    background: #334155;
    border-color: #facc15;
    color: #ffffff;
}

.pdf-zoom-val, .pdf-page-indicator {
    font-size: 0.8rem;
    color: #94a3b8;
    font-weight: 500;
    min-width: 48px;
    text-align: center;
}

.pdf-tb-sep {
    color: #475569;
    font-size: 0.85rem;
}

.pdf-toolbar-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

.pdf-download-trigger {
    background: linear-gradient(135deg, #d97706, #f59e0b);
    border: 1px solid #b45309;
    color: #0f172a;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.15s ease;
}

.pdf-download-trigger:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
}

.pdf-scroll-container {
    flex: 1;
    overflow-y: auto;
    overflow-x: auto;
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: #0f1422;
    box-sizing: border-box;
    width: 100%;
}

.pdf-pages-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    max-width: 100%;
}

.pdf-page-canvas {
    background: #ffffff;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 1px rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    max-width: 100%;
    height: auto !important;
}

/* Thicker Scrollbars across stages */
.pdf-scroll-container::-webkit-scrollbar,
.word-stage::-webkit-scrollbar,
.vault-tree-container::-webkit-scrollbar,
.excel-table-container::-webkit-scrollbar,
.code-pre::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

.pdf-scroll-container::-webkit-scrollbar-track,
.word-stage::-webkit-scrollbar-track,
.vault-tree-container::-webkit-scrollbar-track,
.excel-table-container::-webkit-scrollbar-track,
.code-pre::-webkit-scrollbar-track {
    background: rgba(8, 12, 20, 0.95);
    border-radius: 6px;
}

.pdf-scroll-container::-webkit-scrollbar-thumb,
.word-stage::-webkit-scrollbar-thumb,
.vault-tree-container::-webkit-scrollbar-thumb,
.excel-table-container::-webkit-scrollbar-thumb,
.code-pre::-webkit-scrollbar-thumb {
    background: #eab308;
    border-radius: 6px;
    border: 2px solid #0f172a;
}

.pdf-scroll-container::-webkit-scrollbar-thumb:hover,
.word-stage::-webkit-scrollbar-thumb:hover,
.vault-tree-container::-webkit-scrollbar-thumb:hover,
.excel-table-container::-webkit-scrollbar-thumb:hover,
.code-pre::-webkit-scrollbar-thumb:hover {
    background: #facc15;
    box-shadow: 0 0 10px rgba(250, 204, 21, 0.5);
}

/* Code / Script Stage */
#codeStage {
    background: #1e1e1e;
    overflow: auto;
    padding: 0;
    flex-direction: column;
}

.code-pre {
    margin: 0 !important;
    padding: 20px !important;
    background: transparent !important;
    font-size: 0.82rem;
    line-height: 1.6;
    font-family: 'Consolas', monospace;
    flex: 1;
}

/* Image Stage */
#imageStage {
    align-items: center;
    justify-content: center;
    background: #080b11;
    padding: 20px;
}

.viewer-img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 6px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.7);
}

/* Binary / Asset Stage */
#binaryStage {
    align-items: center;
    justify-content: center;
    padding: 40px;
    background: #0d111a;
}

.binary-card {
    background: var(--vault-surface);
    border: 1px solid var(--vault-border);
    border-radius: 12px;
    padding: 40px;
    max-width: 580px;
    text-align: center;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

.binary-card-icon {
    font-size: 3.5rem;
    margin-bottom: 16px;
}

.binary-card h4 {
    font-size: 1.25rem;
    color: #fff;
    margin-bottom: 8px;
    word-break: break-all;
}

.binary-card p {
    font-size: 0.85rem;
    color: var(--vault-text-dim);
    margin-bottom: 24px;
    line-height: 1.6;
}

.binary-card-meta {
    display: flex;
    justify-content: center;
    gap: 20px;
    font-size: 0.8rem;
    color: var(--vault-text-muted);
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--vault-border-light);
}

/* Empty / Loading State */
.vault-loading-overlay {
    position: absolute;
    inset: 0;
    background: rgba(9, 12, 19, 0.85);
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 12px;
    z-index: 50;
    font-size: 0.85rem;
    color: var(--vault-gold-bright);
}

.vault-loading-overlay.active {
    display: flex;
}

.vault-spinner {
    width: 38px;
    height: 38px;
    border: 3px solid rgba(245, 158, 11, 0.2);
    border-top-color: var(--vault-gold);
    border-radius: 50%;
    animation: vaultSpin 0.7s linear infinite;
}

@keyframes vaultSpin {
    to { transform: rotate(360deg); }
}

/* Featured Project Card Styles in index.html */
.featured-project-card {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.05) 0%, rgba(15, 20, 31, 0.95) 40%, rgba(10, 14, 22, 0.98) 100%) !important;
    border: 1px solid rgba(245, 158, 11, 0.35) !important;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.7), 0 0 25px rgba(245, 158, 11, 0.1) !important;
    position: relative;
    overflow: hidden;
}

.featured-project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #f59e0b, #fbbf24, #38bdf8);
}

.featured-badge-live {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(52, 211, 153, 0.12);
    color: #34d399;
    border: 1px solid rgba(52, 211, 153, 0.3);
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.pulse-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #34d399;
    box-shadow: 0 0 8px #34d399;
    animation: pulseGlow 1.5s infinite;
}

@keyframes pulseGlow {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.8); }
}

.vault-cta-btn {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: #000000 !important;
    font-weight: 700;
    border: none;
    padding: 10px 18px;
    border-radius: 5px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    transition: all 0.25s;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.35);
}

.vault-cta-btn:hover {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.5);
}

/* Responsive adjustments */
@media (max-width: 900px) {
    .vault-window { width: 98vw; height: 96vh; }
    .vault-body { flex-direction: column; }
    .vault-sidebar { width: 100%; height: 35%; border-right: none; border-bottom: 1px solid var(--vault-border-light); }
    .vault-controls { order: 3; width: 100%; max-width: 100%; margin-top: 8px; }
    .word-paper { padding: 20px; }
}

/* Security Passcode Dialer Modal */
.vault-sec-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(4, 7, 14, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000000;
}

.vault-sec-modal-backdrop.active {
    display: flex;
}

.vault-sec-modal {
    background: #0f172a;
    border: 1px solid rgba(234, 179, 8, 0.4);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.85), 0 0 35px rgba(234, 179, 8, 0.15);
    border-radius: 14px;
    width: 380px;
    max-width: 92vw;
    padding: 28px 24px 22px 24px;
    box-sizing: border-box;
    position: relative;
    animation: vaultSecPop 0.22s cubic-bezier(0.16, 1, 0.3, 1);
    color: #f8fafc;
    text-align: center;
}

@keyframes vaultSecPop {
    from { transform: scale(0.92); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.vault-sec-close {
    position: absolute;
    top: 14px;
    right: 16px;
    background: transparent;
    border: none;
    color: #94a3b8;
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    transition: color 0.15s;
}

.vault-sec-close:hover {
    color: #ffffff;
}

.vault-sec-header {
    margin-bottom: 18px;
}

.vault-sec-icon-wrap {
    width: 52px;
    height: 52px;
    margin: 0 auto 12px auto;
    border-radius: 50%;
    background: rgba(234, 179, 8, 0.12);
    border: 1px solid rgba(234, 179, 8, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #facc15;
    font-size: 1.4rem;
}

.vault-sec-header h3 {
    margin: 0 0 6px 0;
    font-size: 1.15rem;
    font-weight: 700;
    color: #ffffff;
    letter-spacing: -0.2px;
}

.vault-sec-header p {
    margin: 0;
    font-size: 0.8rem;
    color: #94a3b8;
    line-height: 1.45;
}

.vault-sec-file-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #1e293b;
    border: 1px solid #334155;
    border-radius: 6px;
    padding: 6px 14px;
    font-size: 0.78rem;
    color: #38bdf8;
    font-weight: 500;
    margin-bottom: 16px;
    max-width: 90%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* PIN Display */
.vault-sec-pin-wrap {
    margin-bottom: 8px;
}

.vault-sec-pin-display {
    background: #020617;
    border: 2px solid #334155;
    border-radius: 8px;
    padding: 12px;
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 6px;
    color: #facc15;
    min-height: 52px;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.vault-sec-pin-display.focus {
    border-color: #facc15;
    box-shadow: 0 0 12px rgba(250, 204, 21, 0.3);
}

.vault-sec-pin-display.shake {
    animation: secShake 0.35s ease;
    border-color: #ef4444;
}

@keyframes secShake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-8px); }
    40%, 80% { transform: translateX(8px); }
}

.vault-sec-pin-placeholder {
    font-size: 0.85rem;
    letter-spacing: 0;
    color: #64748b;
    font-weight: 400;
}

.vault-sec-error {
    min-height: 20px;
    font-size: 0.76rem;
    color: #f87171;
    margin-bottom: 12px;
    font-weight: 500;
}

/* Keypad */
.vault-sec-keypad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    max-width: 250px;
    margin: 0 auto 18px auto;
}

.vault-key-btn {
    background: #1e293b;
    color: #f1f5f9;
    border: 1px solid #334155;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    margin: 0 auto;
    font-size: 1.25rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.vault-key-btn:hover {
    background: #334155;
    border-color: #facc15;
    color: #ffffff;
    transform: scale(1.05);
}

.vault-key-btn:active {
    transform: scale(0.95);
    background: #0284c7;
}

.vault-key-clear, .vault-key-del {
    font-size: 0.85rem;
    color: #94a3b8;
}

.vault-key-zero {
    border-color: rgba(234, 179, 8, 0.5);
    color: #facc15;
}

.vault-sec-actions {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

.vault-sec-btn-cancel {
    flex: 1;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid #334155;
    color: #cbd5e1;
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}

.vault-sec-btn-cancel:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff;
}

.vault-sec-btn-submit {
    flex: 2;
    background: linear-gradient(135deg, #d97706, #f59e0b);
    border: 1px solid #b45309;
    color: #0f172a;
    padding: 10px 14px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
}

.vault-sec-btn-submit:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
}

.vault-sec-hint {
    margin-top: 14px;
    font-size: 0.76rem;
    color: #94a3b8;
}


/* ==========================================================================
   CAD LAYER MANAGER DRAWER & TRUE LINEWEIGHT INDICATORS
   ========================================================================== */
.cad-layers-menu {
    position: absolute;
    bottom: 68px;
    right: 20px;
    width: 320px;
    max-height: 420px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(15, 23, 42, 0.16);
    border-radius: 10px;
    box-shadow: 0 16px 36px -8px rgba(0, 0, 0, 0.22), 0 8px 16px -4px rgba(0, 0, 0, 0.12);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    z-index: 40;
    animation: cadLayerFadeIn 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes cadLayerFadeIn {
    from { opacity: 0; transform: translateY(8px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.cad-layers-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    background: #0f172a;
    color: #ffffff;
    font-size: 0.78rem;
    font-weight: 700;
    font-family: 'Space Grotesk', -apple-system, sans-serif;
    letter-spacing: 0.03em;
}

.cad-layers-title {
    display: flex;
    align-items: center;
    gap: 8px;
}

.cad-layers-actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

.cad-layer-quick-btn {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #f1f5f9;
    padding: 2px 8px;
    font-size: 0.68rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.cad-layer-quick-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    color: #ffffff;
}

.cad-layer-close-btn {
    background: transparent;
    border: none;
    color: #94a3b8;
    padding: 2px 6px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: color 0.15s ease;
}

.cad-layer-close-btn:hover {
    color: #ef4444;
}

.cad-layers-list {
    padding: 8px 10px;
    overflow-y: auto;
    max-height: 350px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.cad-layers-list::-webkit-scrollbar {
    width: 5px;
}

.cad-layers-list::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

.cad-layer-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 8px;
    border-radius: 6px;
    background: #f8fafc;
    border: 1px solid rgba(15, 23, 42, 0.08);
    cursor: pointer;
    transition: all 0.15s ease;
    user-select: none;
}

.cad-layer-item:hover {
    background: #f1f5f9;
    border-color: rgba(15, 23, 42, 0.16);
}

.cad-layer-item.disabled {
    opacity: 0.45;
    background: #f1f5f9;
}

.cad-layer-info {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    flex: 1;
}

.cad-layer-checkbox {
    accent-color: #0d9488;
    cursor: pointer;
    width: 14px;
    height: 14px;
}

.cad-layer-swatch {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
    box-shadow: 0 0 0 1px rgba(0,0,0,0.2);
}

.cad-layer-name {
    font-size: 0.74rem;
    font-weight: 600;
    color: #0f172a;
    font-family: 'JetBrains Mono', monospace;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cad-layer-meta {
    display: flex;
    align-items: center;
    gap: 5px;
    flex-shrink: 0;
}

.cad-layer-weight-badge {
    font-size: 0.62rem;
    font-weight: 600;
    padding: 1px 5px;
    border-radius: 3px;
    background: #e2e8f0;
    color: #475569;
}

.cad-layer-weight-badge.structural {
    background: #e0f2fe;
    color: #0369a1;
}

.cad-layer-weight-badge.centerline {
    background: #fee2e2;
    color: #b91c1c;
}

.cad-layer-weight-badge.dimension {
    background: #fef3c7;
    color: #92400e;
}

.cad-layer-weight-badge.hatch {
    background: #f1f5f9;
    color: #64748b;
}

.cad-layer-count {
    font-size: 0.68rem;
    color: #64748b;
    font-family: 'JetBrains Mono', monospace;
}