:root {
    --primary-color: #4F46E5;
    --primary-hover: #4338CA;
    --bg-color: #F8FAFC;       /* Off-white workspace */
    --panel-bg: #FFFFFF;       /* Crisp white panels */
    --border-color: #E2E8F0;
    --text-main: #0F172A;
    --text-muted: #64748B;
    --success: #10B981;
    --danger: #EF4444;
    --sidebar-width: 320px;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: "Inter", sans-serif; }
body { background: var(--bg-color); color: var(--text-main); height: 100vh; overflow: hidden; }

/* Main Layout: 2-Pane Architecture */
.app-container { display: flex; height: 100vh; width: 100vw; overflow: hidden; }

/* 1. Left Sidebar */
.inbox-sidebar { 
    width: var(--sidebar-width); 
    flex-shrink: 0; 
    background: var(--panel-bg); 
    border-right: 1px solid var(--border-color); 
    display: flex; 
    flex-direction: column; 
    z-index: 10; 
    box-shadow: 2px 0 15px rgba(0,0,0,0.03); 
    transition: all 0.2s ease;
}
.inbox-sidebar.collapsed { 
    display: none !important; 
}

/* Minimal Sidebar Header */
.sidebar-header { 
    padding: 1.25rem 1.5rem; 
    border-bottom: 1px solid var(--border-color); 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    background: #FFFFFF;
}

/* Pill with Status Indicator Dot */
.sidebar-count-wrapper {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: #F1F5F9;
    padding: 5px 12px;
    border-radius: 20px;
    border: 1px solid #E2E8F0;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
}

.sidebar-count-text {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: 0.2px;
}

/* Dedicated ✕ Close Button */
.sidebar-close-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-muted);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    transition: all 0.2s ease;
}

.sidebar-close-btn:hover {
    background: #FEE2E2;
    color: var(--danger);
    border-color: #FECACA;
}

.sidebar-tabs { 
    display: flex; 
    padding: 0.4rem; 
    background: #F1F5F9; 
    margin: 1rem 1rem 0.5rem 1rem; 
    border-radius: 8px; 
}
.tab-btn { 
    flex: 1; 
    background: transparent; 
    padding: 0.6rem; 
    border-radius: 6px; 
    color: var(--text-muted); 
    font-size: 0.85rem; 
    font-weight: 600; 
    border: none; 
    cursor: pointer; 
    transition: 0.2s; 
}
.tab-btn.active { 
    background: white; 
    color: var(--primary-color); 
    box-shadow: 0 2px 5px rgba(0,0,0,0.05); 
}

/* Real-Time Sidebar Search Bar & Sort Row */
.sidebar-search-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem 0.75rem 1rem;
    background: #FFFFFF;
    flex-shrink: 0;
    position: relative;
}

.sidebar-search-input {
    flex: 1;
    min-width: 0;
    padding: 0.6rem 0.75rem;
    background: #F8FAFC;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.82rem;
    color: var(--text-main);
    outline: none;
    transition: all 0.2s ease;
}

.sidebar-search-input:focus {
    background: #FFFFFF;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.sidebar-search-input::placeholder {
    color: var(--text-muted);
}

/* Icon-Only Sort Trigger */
.sidebar-sort-wrapper {
    position: relative;
    flex-shrink: 0;
}

.sort-icon-btn {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #F8FAFC;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1;
    color: var(--text-main);
    cursor: pointer;
    transition: all 0.2s ease;
}

.sort-icon-btn:hover {
    background: #F1F5F9;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Floating Sort Dropdown Menu */
.sort-menu-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    width: 155px;
    background: #FFFFFF;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    padding: 4px;
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sort-menu-item {
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    padding: 8px 10px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-main);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.sort-menu-item:hover {
    background: #F1F5F9;
    color: var(--primary-color);
}

.sort-menu-item.active {
    background: #EEF2FF;
    color: var(--primary-color);
    font-weight: 700;
}

.ticket-list { overflow-y: auto; flex: 1; }
.ticket-item { padding: 1.25rem 1.5rem; border-bottom: 1px solid #F1F5F9; cursor: pointer; transition: all 0.2s ease; }
.ticket-item:hover { background: #F8FAFC; }
.ticket-item.active { background: #F8FAFC; border-left: 4px solid var(--primary-color); }
.ticket-meta { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--text-muted); margin-bottom: 0.5rem; }
.ticket-id { font-weight: 600; color: var(--primary-color); }
.ticket-item h3 { font-size: 0.95rem; margin-bottom: 0.25rem; font-weight: 600; line-height: 1.4; }
.ticket-preview { font-size: 0.85rem; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* 2. Center Workspace */
.center-workspace { 
    flex: 1; 
    display: flex; 
    flex-direction: column; 
    background: var(--bg-color); 
    min-width: 0; 
    height: 100vh; 
    overflow: hidden;
}

/* Two-Tier Top Action Bar */
.top-action-bar {
    padding: 1.1rem 2rem;
    background: white;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.75rem;
    flex-shrink: 0;
    z-index: 10;
    box-shadow: 0 2px 6px rgba(0,0,0,0.02);
    overflow: hidden;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1 1 auto;
    min-width: 0;
}

/* Re-Open ☰ Expand Button */
.sidebar-open-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #FFFFFF;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
    border-radius: 8px;
    padding: 6px 14px;
    color: var(--text-main);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.sidebar-open-btn:hover {
    background: #F8FAFC;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.sidebar-open-btn .btn-icon {
    font-size: 1.05rem;
    line-height: 1;
}

.view-titles {
    flex: 1 1 auto;
    min-width: 0;
}

.view-titles h1 {
    font-size: 1.25rem;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.top-btn {
    padding: 0.6rem 1.1rem !important;
    font-size: 0.85rem !important;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* Sub-Nav Strip for Categories */
.category-subnav-bar {
    background: #F8FAFC;
    border-bottom: 1px solid var(--border-color);
    padding: 0.6rem 2rem;
    display: flex;
    align-items: center;
    flex-shrink: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.category-subnav-bar::-webkit-scrollbar {
    height: 4px;
}
.category-subnav-bar::-webkit-scrollbar-thumb {
    background: #CBD5E1;
    border-radius: 4px;
}

.subnav-inner {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-width: max-content;
}

.subnav-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    margin-right: 0.25rem;
}

.cat-pill {
    background: white;
    border: 1px solid var(--border-color);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.cat-pill:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background: #EEF2FF;
}

.cat-pill.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 2px 6px rgba(79, 70, 229, 0.25);
}

.workspace-mode { 
    display: flex; 
    flex-direction: column; 
    height: 100%; 
    width: 100%; 
    min-height: 0;
    overflow: hidden;
}

.eyebrow { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 1.5px; color: var(--text-muted); margin-bottom: 0.2rem; font-weight: 700;}

.thread-container { 
    padding: 2rem; 
    overflow-y: auto; 
    flex: 1; 
    display: flex; 
    flex-direction: column; 
    gap: 2rem; 
    max-width: 950px; 
    margin: 0 auto; 
    width: 100%; 
}

/* Messaging */
.message-block { display: flex; gap: 1rem; max-width: 90%; }
.avatar { width: 42px; height: 42px; border-radius: 50%; background: #E2E8F0; color: var(--text-muted); display: flex; align-items: center; justify-content: center; font-weight: 700; flex-shrink: 0; font-size: 1rem; }
.message-content { flex: 1; min-width: 0; }
.sender-name { font-size: 0.85rem; font-weight: 600; margin-bottom: 0.4rem; color: var(--text-muted); margin-left: 0.5rem; }
.bubble { background: white; padding: 1.5rem; border-radius: 0 16px 16px 16px; box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03); line-height: 1.6; font-size: 0.95rem; border: 1px solid var(--border-color); }

/* AI Panel */
.ai-panel { 
    background: var(--panel-bg); 
    border: 1px solid var(--border-color); 
    border-radius: 16px; 
    padding: 2rem; 
    box-shadow: 0 10px 30px rgba(0,0,0,0.04); 
    border-top: 4px solid var(--primary-color); 
}

.panel-heading { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.25rem; }
.heading-left { display: flex; align-items: center; }
.heading-left h2 { font-size: 1.25rem; font-weight: 700; }

.mini-card { background: #F8FAFC; border: 1px solid var(--border-color); padding: 1.1rem 1.3rem; border-radius: 12px; }
.mini-card p { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 0.4rem; text-transform: uppercase; font-weight: 700; letter-spacing: 0.5px;}
.mini-card strong { font-size: 1.05rem; color: var(--text-main); }

.draft-section {
    margin-bottom: 1.75rem;
}

.draft-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.75rem; }
.editable-draft { 
    width: 100%; 
    min-height: 250px; 
    max-height: 400px; 
    overflow-y: auto; 
    white-space: pre-wrap; 
    word-break: break-word; 
    padding: 1.5rem; 
    border: 1px solid var(--border-color); 
    border-radius: 12px; 
    font-size: 0.95rem; 
    line-height: 1.7; 
    outline: none; 
    background: #FDFDFD; 
    transition: all 0.2s ease; 
}
.editable-draft:focus { border-color: var(--primary-color); background: white; box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1); }

/* Action Buttons Row */
.action-buttons-row {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding-top: 0.25rem;
}

.actions-left-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.reject-btn {
    color: var(--danger) !important;
    border-color: #FECACA !important;
    background: #FEF2F2 !important;
    padding: 0.8rem 1.4rem !important;
    font-size: 0.92rem !important;
    border-radius: 8px !important;
}
.reject-btn:hover {
    background: #FEE2E2 !important;
}

.approve-btn {
    padding: 0.8rem 1.6rem !important;
    font-size: 0.92rem !important;
    border-radius: 8px !important;
}

.similar-action-btn {
    padding: 0.8rem 1.3rem !important;
    font-size: 0.9rem !important;
    font-weight: 600 !important;
    border-color: #CBD5E1 !important;
    background: white !important;
    border-radius: 8px !important;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.similar-action-btn:hover {
    background: #F8FAFC !important;
    border-color: var(--primary-color) !important;
    color: var(--primary-color) !important;
}

.status-message {
    margin-top: 1rem;
    font-size: 0.88rem;
    font-weight: 600;
}

/* Generic Buttons & Status Chips */
button { font-weight: 600; cursor: pointer; border: none; transition: all 0.2s ease; }
button:hover:not(:disabled) { transform: translateY(-2px); }
button:disabled { opacity: 0.6; cursor: not-allowed; }
.primary-btn { background: var(--primary-color); color: white; padding: 0.8rem 1.5rem; border-radius: 8px; box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3); font-size: 0.95rem; }
.primary-btn:hover:not(:disabled) { background: var(--primary-hover); box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4); }
.ghost-btn { background: transparent; color: var(--text-muted); border: 1px solid var(--border-color); padding: 0.5rem 1rem; border-radius: 6px; font-size: 0.85rem; }
.ghost-btn:hover { background: #F1F5F9; color: var(--text-main); }
.status-chip { font-size: 0.75rem; padding: 0.3rem 0.8rem; border-radius: 99px; font-weight: 700;}
.status-chip.success { background: #D1FAE5; color: #065F46; }

/* Category Bulk List */
.cat-list { display: none; flex-direction: column; gap: 1rem; }
.cat-list.active { display: flex; animation: slideUp 0.3s ease-out; }

.email-row { display: flex; justify-content: space-between; align-items: center; padding: 1.5rem; background: white; border: 1px solid var(--border-color); border-radius: 16px; box-shadow: 0 4px 15px rgba(0,0,0,0.02); transition: transform 0.2s, box-shadow 0.2s; }
.email-row:hover { transform: translateY(-3px); box-shadow: 0 8px 25px rgba(0,0,0,0.06); border-color: #cbd5e1; }
.email-text-wrap { flex: 1; padding-right: 2rem; }
.email-text-wrap strong { color: var(--text-main); display: block; margin-bottom: 8px; font-size: 1.05rem; }
.email-text-wrap span { font-size: 0.9rem; color: var(--text-muted); line-height: 1.6; display: block; }

.reject-btn-sm { background: white; color: var(--text-muted); border: 1px solid var(--border-color); padding: 0.5rem 1rem; border-radius: 8px; font-size: 0.85rem; font-weight: 600; }
.reject-btn-sm:hover { background: #FEF2F2; color: var(--danger); border-color: #FECACA; }

.bulk-approve-trigger { margin-top: 1.5rem; padding: 1.25rem; font-size: 1.05rem; width: 100%; border-radius: 12px; }
.empty-state { text-align: center; padding: 4rem 2rem; color: var(--text-muted); background: white; border-radius: 16px; border: 1px dashed var(--border-color); }

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

/* 3. Analytics & Charts View */
#analyticsMode {
    display: flex;
    flex-direction: column;
    height: 100%;
    width: 100%;
    min-height: 0;
    overflow: hidden;
}

#analyticsMode .thread-container {
    max-width: 100%;
    width: 100%;
    padding: 1.5rem 2.5rem 5rem 2.5rem;
    overflow-y: scroll !important;
    overflow-x: hidden;
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.analytics-stat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    flex-shrink: 0;
}

.stat-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
    flex-shrink: 0;
}

.stat-card p {
    font-size: 0.78rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.stat-card h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-main);
}

/* Horizontal Track for Visual Charts */
.charts-scroll-viewport {
    width: 100%;
    overflow-x: auto !important;
    overflow-y: hidden;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
    flex-shrink: 0;
}

.analytics-charts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    min-width: 750px;
    width: 100%;
}

.chart-card {
    padding: 1.25rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.03);
}

.chart-scroll-container {
    width: 100%;
    overflow-x: auto !important;
    overflow-y: hidden;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
}

/* Scrollable Table Card */
.analytics-card-wrapper {
    background: white;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    width: 100%;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
    margin-bottom: 3rem;
}

.analytics-card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    flex-shrink: 0;
}

.analytics-table-container {
    width: 100%;
    overflow-x: auto !important;
    overflow-y: visible;
    -webkit-overflow-scrolling: touch;
}

.analytics-table {
    width: 100%;
    min-width: 980px;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.88rem;
}

.analytics-table th {
    background: #F8FAFC;
    color: var(--text-muted);
    font-weight: 600;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.analytics-table td {
    padding: 1.1rem 1.25rem;
    border-bottom: 1px solid #F1F5F9;
    color: var(--text-main);
    vertical-align: middle;
    white-space: nowrap;
}

.analytics-table tbody tr:hover {
    background: #F8FAFC;
}

.count-pill {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.8rem;
}

.pill-received { background: #EEF2FF; color: var(--primary-color); }
.pill-sent { background: #D1FAE5; color: #065F46; }

/* Custom Scrollbars */
#analyticsMode .thread-container::-webkit-scrollbar {
    width: 10px;
}

.analytics-table-container::-webkit-scrollbar,
.charts-scroll-viewport::-webkit-scrollbar,
.chart-scroll-container::-webkit-scrollbar {
    height: 8px;
}

#analyticsMode .thread-container::-webkit-scrollbar-track,
.analytics-table-container::-webkit-scrollbar-track,
.charts-scroll-viewport::-webkit-scrollbar-track,
.chart-scroll-container::-webkit-scrollbar-track {
    background: #E2E8F0;
    border-radius: 6px;
}

#analyticsMode .thread-container::-webkit-scrollbar-thumb,
.analytics-table-container::-webkit-scrollbar-thumb,
.charts-scroll-viewport::-webkit-scrollbar-thumb,
.chart-scroll-container::-webkit-scrollbar-thumb {
    background: #94A3B8;
    border-radius: 6px;
}

#analyticsMode .thread-container::-webkit-scrollbar-thumb:hover,
.analytics-table-container::-webkit-scrollbar-thumb:hover,
.charts-scroll-viewport::-webkit-scrollbar-thumb:hover,
.chart-scroll-container::-webkit-scrollbar-thumb:hover {
    background: #64748B;
}

/* ==========================================================================
   Attachment Rendering & Auto-Verified Invoice Styles
   ========================================================================== */

/* Attachments Row Container */
.attachments-wrapper {
    margin-top: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.attachments-heading {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.attachments-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    align-items: center;
}

/* Document Chip (PDF, CSV, TXT) */
.attachment-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #FFFFFF;
    border: 1px solid var(--border-color);
    padding: 7px 14px;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--primary-color);
    text-decoration: none;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
    transition: all 0.2s ease;
}

.attachment-chip:hover {
    background: #EEF2FF;
    border-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(79, 70, 229, 0.15);
}

/* Image Thumbnails */
.attachment-img-card {
    display: flex;
    flex-direction: column;
    width: 130px;
    background: #FFFFFF;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    text-decoration: none;
    transition: all 0.2s ease;
}

.attachment-img-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.attachment-img-card img {
    width: 100%;
    height: 90px;
    object-fit: cover;
    background: #F1F5F9;
}

.attachment-img-card .attachment-name {
    padding: 4px 8px;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Parsed Invoice Card */
.invoice-summary-card {
    margin-top: 1rem;
    background: #FFFFFF;
    border: 1px solid #C7D2FE;
    border-radius: 12px;
    padding: 1rem 1.25rem;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.04);
}

.invoice-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.invoice-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.invoice-field {
    background: #F8FAFC;
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.invoice-field p {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 2px;
}

.invoice-field strong {
    font-size: 0.85rem;
    color: var(--text-main);
}

.cat-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.cat-pill .badge-count {
    background-color: rgba(0, 0, 0, 0.12);
    padding: 1px 6px;
    font-size: 0.75rem;
    border-radius: 10px;
    font-weight: 600;
}

.cat-pill.active .badge-count {
    background-color: rgba(255, 255, 255, 0.25);
    color: #fff;
}

.filter-btn-group {
    display: inline-flex;
    background: #F1F5F9;
    padding: 3px;
    border-radius: 8px;
    gap: 2px;
}

.filter-chip {
    background: transparent;
    border: none;
    padding: 5px 12px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.filter-chip:hover {
    color: var(--text-main);
}

.filter-chip.active {
    background: #FFFFFF;
    color: var(--primary-color);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

/* ==========================================================================
   Analytics Filter Toolbar & Date Range Controls
   ========================================================================== */

.analytics-filter-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #FFFFFF;
    padding: 12px 18px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
    flex-shrink: 0;
    gap: 1rem;
}

.filter-btn-group {
    display: inline-flex;
    align-items: center;
    background: #F1F5F9;
    padding: 3px;
    border-radius: 8px;
    gap: 2px;
}

.filter-chip {
    background: transparent;
    border: none;
    padding: 5px 12px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.filter-chip:hover {
    color: var(--text-main);
}

.filter-chip.active {
    background: #FFFFFF;
    color: var(--primary-color);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

/* Responsive adjustment for compact screens */
@media (max-width: 900px) {
    .analytics-filter-toolbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.85rem;
    }
}