/* Global Variables & Design Tokens */
:root {
    /* Dark Theme Variables (Default) */
    --bg-color: #0b0f19;
    --card-bg: rgba(22, 30, 49, 0.7);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --accent-glow: rgba(99, 102, 241, 0.2);
    --success: #10b981;
    --danger: #ef4444;
    
    /* Table specific colors */
    --table-header-bg: #1e293b;
    --table-row-even: rgba(255, 255, 255, 0.02);
    --table-row-odd: rgba(0, 0, 0, 0);
    --table-hover: rgba(99, 102, 241, 0.08);
    --table-border: rgba(255, 255, 255, 0.06);
    
    /* DOCX Paper colors in Dark Theme */
    --paper-bg: #151d30;
    --paper-text: #e2e8f0;
    --paper-border: rgba(255, 255, 255, 0.08);
    --paper-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    --var-highlight-bg: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(236, 72, 153, 0.2) 100%);
    --var-highlight-border: rgba(139, 92, 246, 0.4);
    --var-highlight-text: #c084fc;
    
    /* Replaced variables styling */
    --var-replaced-bg: linear-gradient(135deg, rgba(16, 185, 129, 0.18) 0%, rgba(5, 150, 105, 0.18) 100%);
    --var-replaced-border: rgba(16, 185, 129, 0.4);
    --var-replaced-text: #34d399;
    
    --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);
    --shadow-glow: 0 0 20px 0 rgba(99, 102, 241, 0.15);
    --radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Variables */
body.light-theme {
    --bg-color: #f8fafc;
    --card-bg: rgba(255, 255, 255, 0.85);
    --card-border: rgba(0, 0, 0, 0.08);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --accent: #4f46e5;
    --accent-hover: #3730a3;
    --accent-glow: rgba(79, 70, 229, 0.15);
    
    /* Table specific colors */
    --table-header-bg: #f1f5f9;
    --table-row-even: rgba(0, 0, 0, 0.02);
    --table-row-odd: rgba(255, 255, 255, 0);
    --table-hover: rgba(79, 70, 229, 0.05);
    --table-border: rgba(0, 0, 0, 0.06);
    
    /* DOCX Paper colors in Light Theme */
    --paper-bg: #ffffff;
    --paper-text: #1e293b;
    --paper-border: rgba(0, 0, 0, 0.08);
    --paper-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
    --var-highlight-bg: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(219, 39, 119, 0.1) 100%);
    --var-highlight-border: rgba(79, 70, 229, 0.3);
    --var-highlight-text: #4f46e5;
    
    /* Replaced variables styling */
    --var-replaced-bg: linear-gradient(135deg, rgba(16, 185, 129, 0.08) 0%, rgba(5, 150, 105, 0.08) 100%);
    --var-replaced-border: rgba(16, 185, 129, 0.3);
    --var-replaced-text: #059669;
    
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 20px 0 rgba(79, 70, 229, 0.08);
}

/* Basic Reset & Base Styling */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Noto Sans TC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    transition: background-color 0.4s ease, color 0.4s ease;
    overflow-x: hidden;
    /* Grid background */
    background-image: radial-gradient(var(--card-border) 1px, transparent 1px);
    background-size: 24px 24px;
}

.app-container {
    width: 100%;
    max-width: 1400px;
    padding: 2.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Header Styling */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 1.5rem;
    gap: 1.5rem;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.icon-wrapper {
    background: linear-gradient(135deg, var(--accent), #8b5cf6);
    padding: 0.75rem;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
}

.logo-icon {
    width: 2rem;
    height: 2rem;
    color: white;
}

header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    background: linear-gradient(to right, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header .subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.controls-area {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Navbar status bar */
.global-status-bar {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.4rem 0.8rem;
    border-radius: 14px;
    border: 1px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
}

.status-pill.red {
    background: rgba(239, 68, 68, 0.08);
    color: #f87171;
    border-color: rgba(239, 68, 68, 0.15);
}

body.light-theme .status-pill.red {
    background: rgba(239, 68, 68, 0.05);
    color: #dc2626;
    border-color: rgba(239, 68, 68, 0.1);
}

.status-pill.green {
    background: rgba(16, 185, 129, 0.08);
    color: #34d399;
    border-color: rgba(16, 185, 129, 0.15);
}

body.light-theme .status-pill.green {
    background: rgba(16, 185, 129, 0.05);
    color: #059669;
    border-color: rgba(16, 185, 129, 0.1);
}

.pill-icon {
    width: 0.85rem;
    height: 0.85rem;
}

/* Theme Toggle Button */
.icon-btn {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.icon-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--accent-glow);
}

.icon-btn i {
    position: absolute;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s;
}

body.dark-theme .sun-icon {
    opacity: 0;
    transform: rotate(90deg) scale(0.5);
}

body.dark-theme .moon-icon {
    opacity: 1;
    transform: rotate(0) scale(1);
}

body.light-theme .sun-icon {
    opacity: 1;
    transform: rotate(0) scale(1);
}

body.light-theme .moon-icon {
    opacity: 0;
    transform: rotate(-90deg) scale(0.5);
}

/* Global Drag Overlay */
.drag-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(11, 15, 25, 0.92);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

body.light-theme .drag-overlay {
    background: rgba(248, 250, 252, 0.94);
}

.drag-overlay.hidden {
    display: none !important;
    opacity: 0;
}

.overlay-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    text-align: center;
    color: var(--text-primary);
}

.overlay-icons {
    display: flex;
    gap: 2rem;
    justify-content: center;
}

.overlay-icon {
    width: 4.5rem;
    height: 4.5rem;
    animation: bounce 2s infinite ease-in-out;
}

.overlay-icon.docx-text {
    animation-delay: 0.3s;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-15px) scale(1.05); }
}

.overlay-content h2 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.overlay-content p {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Unified Dropzone Box */
.upload-section {
    display: flex;
    justify-content: center;
    width: 100%;
}

.unified-box {
    width: 100%;
    max-width: 800px;
    height: 380px;
    border: 2px dashed var(--card-border);
    border-radius: 24px;
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    box-shadow: var(--shadow-lg);
}

.unified-box:hover, .unified-box.dragover {
    border-color: var(--accent);
    background: rgba(99, 102, 241, 0.03);
    box-shadow: var(--shadow-glow);
}

body.light-theme .unified-box:hover, body.light-theme .unified-box.dragover {
    background: rgba(79, 70, 229, 0.02);
}

.unified-box.dragover {
    transform: scale(1.015);
}

.dropzone-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    pointer-events: none;
    text-align: center;
    padding: 2rem;
    width: 100%;
}

.upload-animations-group {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.upload-animation {
    background: rgba(99, 102, 241, 0.08);
    padding: 1.25rem;
    border-radius: 50%;
    color: var(--accent);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.xlsx-color {
    color: #10b981;
    background: rgba(16, 185, 129, 0.08);
}

.docx-color {
    color: #3b82f6;
    background: rgba(59, 130, 246, 0.08);
}

.unified-box:hover .upload-animation, .unified-box.dragover .upload-animation {
    transform: translateY(-5px) scale(1.08);
}

.unified-box:hover .xlsx-color, .unified-box.dragover .xlsx-color {
    background: rgba(16, 185, 129, 0.16);
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.15);
}

.unified-box:hover .docx-color, .unified-box.dragover .docx-color {
    background: rgba(59, 130, 246, 0.16);
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.15);
}

.upload-icon {
    width: 2.25rem;
    height: 2.25rem;
}

.dropzone-content h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
}

.dropzone-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.browse-hint {
    margin-top: 0.25rem;
    font-size: 0.85rem;
}

.browse-link {
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 4px;
    cursor: pointer;
}

.primary-link {
    color: var(--accent);
}

/* File Status Checklist inside Dropzone */
.status-checklist {
    display: flex;
    gap: 1.5rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.8rem;
    padding: 0.5rem 1.25rem;
    border-radius: 20px;
    border: 1px solid var(--card-border);
    background: rgba(0, 0, 0, 0.15);
    transition: var(--transition);
    color: var(--text-secondary);
}

body.light-theme .status-item {
    background: rgba(255, 255, 255, 0.8);
}

.status-icon {
    width: 0.95rem;
    height: 0.95rem;
}

.status-item.completed {
    color: #10b981;
    border-color: rgba(16, 185, 129, 0.3);
    background: rgba(16, 185, 129, 0.05);
    font-weight: 600;
}

body.light-theme .status-item.completed {
    background: rgba(16, 185, 129, 0.05);
}

/* File Viewer Section */
.viewer-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Metadata Card */
.meta-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 1.25rem 2rem;
    border-radius: var(--radius);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    box-shadow: var(--shadow-md);
}

.meta-info {
    display: flex;
    gap: 3rem;
    flex-wrap: wrap;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.item-icon {
    color: var(--accent);
    width: 1.5rem;
    height: 1.5rem;
}

.xlsx-text {
    color: #10b981;
}

.docx-text {
    color: #3b82f6;
}

.variable-icon {
    color: #ec4899;
}

.meta-item .label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.meta-item .value {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Reset / Action Buttons */
.secondary-btn {
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.secondary-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-muted);
    background: rgba(255, 255, 255, 0.05);
}

body.light-theme .secondary-btn:hover {
    background: rgba(0, 0, 0, 0.03);
}

.action-btn {
    background: var(--accent);
    color: white;
    border: none;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 12px var(--accent-glow);
}

.action-btn:hover:not(:disabled) {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.action-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    box-shadow: none;
}

/* Sheet Tabs */
.sheet-tabs-container {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.section-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sheet-tabs {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding-bottom: 0.25rem;
}

.sheet-tab {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--transition);
}

.sheet-tab:hover {
    color: var(--text-primary);
    border-color: var(--text-muted);
}

.sheet-tab.active {
    background: #10b981;
    color: white;
    border-color: #10b981;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
}

/* Table Toolbar (Search, Limit, Export) */
.table-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.toolbar-left {
    flex-grow: 1;
    max-width: 480px;
}

.search-box {
    position: relative;
    width: 100%;
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    width: 1.15rem;
    height: 1.15rem;
    pointer-events: none;
}

.search-box input {
    width: 100%;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    border-radius: var(--radius);
    font-size: 0.9rem;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

#xlsx-viewer-section .search-box input:focus {
    border-color: #10b981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

#docx-viewer-section .search-box input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.clear-btn {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.clear-btn:hover {
    color: var(--text-primary);
}

.toolbar-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.limit-selector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.limit-selector select {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    padding: 0.625rem 2rem 0.625rem 1rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    cursor: pointer;
    outline: none;
    transition: var(--transition);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19.5 8.25l-7.5 7.5-7.5-7.5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
}

.limit-selector select:focus {
    border-color: var(--accent);
}

/* Table Design */
.table-outer-wrapper {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.table-inner-wrapper {
    overflow-x: auto;
    max-height: 520px; /* Vertical scrolling */
    position: relative;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.875rem;
}

thead {
    position: sticky;
    top: 0;
    z-index: 10;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
}

th {
    background: var(--table-header-bg);
    color: var(--text-secondary);
    font-weight: 600;
    padding: 1rem 1.25rem;
    border-bottom: 2px solid var(--table-border);
    cursor: pointer;
    user-select: none;
    transition: var(--transition);
    white-space: nowrap;
}

th:hover {
    color: var(--text-primary);
    background: rgba(16, 185, 129, 0.05);
}

.th-content {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sort-icon {
    width: 0.875rem;
    height: 0.875rem;
    color: var(--text-muted);
    transition: var(--transition);
}

th.asc .sort-icon {
    transform: rotate(180deg);
    color: #10b981;
}

th.desc .sort-icon {
    color: #10b981;
}

td {
    padding: 0.875rem 1.25rem;
    border-bottom: 1px solid var(--table-border);
    color: var(--text-primary);
    white-space: nowrap;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
}

tr:nth-child(even) {
    background-color: var(--table-row-even);
}

tr:nth-child(odd) {
    background-color: var(--table-row-odd);
}

tr:hover {
    background-color: var(--table-hover) !important;
}

#xlsx-viewer-section .action-btn {
    background: #10b981;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
}

#xlsx-viewer-section .action-btn:hover {
    background: #059669;
}

/* DOCX Viewer Layout with Split Workspace */
.docx-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.docx-toolbar .search-box {
    max-width: 480px;
}

.docx-quick-actions {
    display: flex;
    align-items: center;
}

.info-tag {
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent);
    border: 1px solid rgba(99, 102, 241, 0.2);
    font-size: 0.85rem;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-weight: 500;
}

body.light-theme .info-tag {
    background: rgba(79, 70, 229, 0.05);
    color: var(--accent);
}

/* DOCX Workspace layout */
.docx-workspace {
    display: flex;
    gap: 1.5rem;
    align-items: stretch;
    width: 100%;
}

/* Sidebar Styling */
.tenant-sidebar {
    width: 320px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-md);
    flex-shrink: 0;
}

.sidebar-header {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 1rem;
}

.sidebar-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.batch-btn {
    background: #3b82f6 !important;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2) !important;
    width: 100%;
    justify-content: center;
}

.batch-btn:hover:not(:disabled) {
    background: #2563eb !important;
}

.tenant-list {
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 520px;
    padding-right: 0.25rem;
}

/* Scrollbar styling for sidebar */
.tenant-list::-webkit-scrollbar {
    width: 6px;
}

.tenant-list::-webkit-scrollbar-track {
    background: transparent;
}

.tenant-list::-webkit-scrollbar-thumb {
    background: var(--card-border);
    border-radius: 4px;
}

.tenant-list::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

.tenant-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    border: 1px solid var(--card-border);
    background: rgba(255, 255, 255, 0.01);
    cursor: pointer;
    transition: var(--transition);
}

.tenant-item:hover {
    border-color: #3b82f6;
    background: rgba(59, 130, 246, 0.03);
}

.tenant-item.active {
    border-color: #3b82f6;
    background: rgba(59, 130, 246, 0.08);
    box-shadow: inset 0 0 6px rgba(59, 130, 246, 0.15);
}

.tenant-name-section {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    min-width: 0;
    flex-grow: 1;
}

.tenant-item-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
}

.tenant-item-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
}

.tenant-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 0.5rem;
    flex-shrink: 0;
}

.tenant-action-btn {
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    border: 1px solid var(--card-border);
    background: var(--bg-color);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.tenant-action-btn:hover {
    background: #3b82f6;
    border-color: #3b82f6;
    color: white;
    transform: scale(1.08);
}

.sidebar-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
    text-align: center;
    gap: 0.75rem;
}

.sidebar-empty-state .empty-icon {
    width: 2.25rem;
    height: 2.25rem;
    color: var(--text-muted);
    opacity: 0.6;
}

.sidebar-empty-state p {
    font-size: 0.8rem;
    line-height: 1.5;
}

/* Document Paper simulator layout adjustments */
.document-paper-container {
    flex-grow: 1;
    background: rgba(0, 0, 0, 0.15);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 2.5rem 1.5rem;
    overflow-y: auto;
    max-height: 800px;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.2);
}

body.light-theme .document-paper-container {
    background: #f1f5f9;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.04);
}

.document-paper {
    background-color: var(--paper-bg);
    color: var(--paper-text);
    box-shadow: var(--paper-shadow);
    border: 1px solid var(--paper-border);
    width: 100%;
    max-width: 850px;
    margin: 0 auto;
    padding: 3.5rem 4.5rem;
    min-height: 1000px;
    font-size: 1.05rem;
    line-height: 1.8;
    border-radius: 4px;
    transition: var(--transition);
}

/* Typography styles for Word documents inside render area */
.document-paper p {
    margin-bottom: 1.25rem;
    text-align: justify;
    word-break: break-all;
}

.document-paper h1 {
    font-size: 1.85rem;
    font-weight: 700;
    margin-bottom: 2rem;
    text-align: center;
    letter-spacing: -0.01em;
}

.document-paper h2 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-top: 1.75rem;
    margin-bottom: 1rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--card-border);
}

.document-paper h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.document-paper ul, .document-paper ol {
    margin-bottom: 1.25rem;
    padding-left: 2rem;
}

.document-paper li {
    margin-bottom: 0.5rem;
}

.document-paper table {
    width: 100%;
    margin: 2rem 0;
    border-collapse: collapse;
}

.document-paper td, .document-paper th {
    border: 1px solid var(--text-muted);
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    background: transparent;
    color: inherit;
    white-space: normal;
    max-width: none;
    overflow: visible;
    text-overflow: clip;
}

.document-paper th {
    font-weight: 600;
    background: rgba(255, 255, 255, 0.03);
}

body.light-theme .document-paper th {
    background: rgba(0, 0, 0, 0.02);
}

/* Style for variables {variable} */
.highlight-variable {
    background: var(--var-highlight-bg);
    border: 1px solid var(--var-highlight-border);
    color: var(--var-highlight-text);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-weight: 600;
    font-family: inherit;
    margin: 0 0.15rem;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    display: inline-block;
    vertical-align: middle;
    line-height: 1.2;
    transition: var(--transition);
}

.highlight-variable:hover {
    transform: scale(1.05);
    box-shadow: 0 0 8px rgba(139, 92, 246, 0.3);
}

/* Style for variables that have been matched and replaced */
.replaced-variable {
    background: var(--var-replaced-bg);
    border: 1px solid var(--var-replaced-border);
    color: var(--var-replaced-text);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-weight: 600;
    font-family: inherit;
    margin: 0 0.15rem;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
    display: inline-block;
    vertical-align: middle;
    line-height: 1.2;
    transition: var(--transition);
    cursor: help;
}

.replaced-variable:hover {
    transform: scale(1.05);
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.3);
}

/* Style for search match highlight */
.highlight-search {
    background-color: rgba(245, 158, 11, 0.4);
    color: white;
    border-radius: 2px;
    padding: 0.1rem 0.2rem;
    box-shadow: 0 0 4px rgba(245, 158, 11, 0.3);
}

/* Empty State / Loading State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
    gap: 1rem;
}

.empty-icon {
    width: 3rem;
    height: 3rem;
    color: var(--text-muted);
}

.hidden {
    display: none !important;
}

/* Pagination */
.pagination-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-info {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.pagination-buttons {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pagination-btn {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    cursor: pointer;
    transition: var(--transition);
}

.pagination-btn:hover:not(:disabled) {
    border-color: #10b981;
    color: var(--text-primary);
    background: rgba(16, 185, 129, 0.02);
}

.pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.page-numbers {
    display: flex;
    gap: 0.25rem;
}

.page-num {
    width: 2.25rem;
    height: 2.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    border: 1px solid transparent;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.page-num:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

body.light-theme .page-num:hover {
    background: rgba(0, 0, 0, 0.03);
}

.page-num.active {
    background: #10b981;
    color: white;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
}

/* Footer */
footer {
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    border-top: 1px solid var(--card-border);
    padding-top: 1.5rem;
    margin-top: 2rem;
}

/* Toast Notification styling */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: #1e293b;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #f8fafc;
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
    z-index: 9999;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.2s;
    transform: translateY(0);
}

body.light-theme .toast {
    background: #ffffff;
    border-color: rgba(0, 0, 0, 0.08);
    color: #0f172a;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

.toast.hidden {
    transform: translateY(100px);
    opacity: 0;
    pointer-events: none;
}

.toast.toast-error {
    border-left: 4px solid var(--danger);
}

.toast.toast-success {
    border-left: 4px solid var(--success);
}

/* Media Queries for Responsive Design */
@media (max-width: 1024px) {
    .docx-workspace {
        flex-direction: column;
        align-items: stretch;
    }
    
    .tenant-sidebar {
        width: 100%;
        max-height: 350px;
    }
    
    .tenant-list {
        max-height: 200px;
    }
}

@media (max-width: 900px) {
    .dropzones-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .app-container {
        padding: 1.5rem 1rem;
    }
    
    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .controls-area {
        flex-direction: column;
        align-items: flex-end;
        gap: 0.75rem;
    }
    
    .meta-card {
        flex-direction: column;
        align-items: stretch;
    }
    
    .meta-info {
        flex-direction: column;
        gap: 1rem;
    }
    
    .table-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .toolbar-right {
        justify-content: space-between;
    }
    
    .pagination-container {
        flex-direction: column;
        align-items: center;
    }
    
    .document-paper {
        padding: 2rem 1.5rem;
    }
    
    .docx-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
}