/* ============================================
   ISMS Dashboard - Global Layout System
   ISMS Dashboard
   ============================================ */

:root {
    --primary: #1a237e;
    --primary-light: #3949ab;
    --primary-dark: #0d1642;
    --accent: #ff6f00;
    --accent-light: #ffa040;
    --success: #2e7d32;
    --warning: #f57f17;
    --danger: #c62828;
    --info: #0277bd;
    --bg-body: #f0f2f5;
    --bg-card: #ffffff;
    --text-primary: #212121;
    --text-secondary: #616161;
    --text-muted: #9e9e9e;
    --border: #e0e0e0;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-hover: 0 4px 16px rgba(0,0,0,0.12);
    --radius: 10px;
    --radius-sm: 6px;
    --transition: all 0.25s ease;

    /* Sidebar */
    --sidebar-width: 260px;
    --sidebar-collapsed: 68px;
    --sidebar-bg: #0d1642;
    --sidebar-text: rgba(255,255,255,0.7);
    --sidebar-text-active: #ffffff;
    --sidebar-text-muted: rgba(255,255,255,0.5);
    --sidebar-text-dim: rgba(255,255,255,0.4);
    --sidebar-group-label: rgba(255,255,255,0.38);
    --sidebar-sub-text: rgba(255,255,255,0.55);
    --sidebar-text-hover: rgba(255,255,255,0.85);
    --sidebar-hover: rgba(255,255,255,0.08);
    --sidebar-hover-subtle: rgba(255,255,255,0.06);
    --sidebar-active-bg: rgba(57,73,171,0.3);
    --sidebar-border-color: rgba(255,255,255,0.08);
    --sidebar-scrollbar: rgba(255,255,255,0.15);
    --sidebar-tag-bg: rgba(255,255,255,0.12);
    --top-header-height: 52px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-body);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.5;
    overflow-x: hidden;
}

/* ============================================
   SIDEBAR
   ============================================ */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    z-index: 200;
    display: flex;
    flex-direction: column;
    transition: width 0.3s ease;
    overflow: hidden;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}

.sidebar-header {
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--sidebar-border-color);
    min-height: 64px;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    overflow: hidden;
}

.logo-icon {
    min-width: 36px;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 14px;
    color: #fff;
}

.logo-text {
    display: flex;
    flex-direction: column;
    white-space: nowrap;
}

.logo-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--sidebar-text-active);
}

.logo-sub {
    font-size: 10px;
    color: var(--sidebar-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--sidebar-text-muted);
    cursor: pointer;
    padding: 6px;
    border-radius: 6px;
    transition: var(--transition);
}

.sidebar-toggle:hover { color: var(--sidebar-text-active); background: var(--sidebar-hover); }

.sidebar.collapsed .logo-text,
.sidebar.collapsed .nav-group-left span,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .nav-sub-item span,
.sidebar.collapsed .nav-arrow,
.sidebar.collapsed .sidebar-footer .user-info,
.sidebar.collapsed .sidebar-toggle i { display: none; }

.sidebar.collapsed .sidebar-toggle i { display: block; transform: rotate(180deg); }

/* === Navigation === */
.sidebar-nav {
    flex: 1;
    padding: 12px 8px;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: var(--sidebar-scrollbar); border-radius: 4px; }

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: 8px;
    color: var(--sidebar-text);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
    margin-bottom: 2px;
}

.nav-item:hover { background: var(--sidebar-hover); color: var(--sidebar-text-active); }
.nav-item.active { background: var(--sidebar-active-bg); color: var(--sidebar-text-active); font-weight: 600; }
.nav-item i { min-width: 20px; text-align: center; font-size: 15px; }
.nav-badge {
    background: #ff6f00; color: #fff; font-size: 10px; font-weight: 700;
    padding: 1px 6px; border-radius: 8px; margin-left: auto; min-width: 18px;
    text-align: center; line-height: 16px;
}
.nav-coming-soon {
    font-size: 9px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.3px;
    background: var(--sidebar-tag-bg); color: var(--sidebar-group-label); padding: 1px 6px;
    border-radius: 6px; margin-left: 6px; line-height: 15px;
}
.nav-group-future .nav-group-header:hover { background: transparent; cursor: default; }

/* === Nav Groups (collapsible) === */
.nav-group { margin-bottom: 2px; }

.nav-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.nav-group-header:hover { background: var(--sidebar-hover); }

.nav-group-left {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
}

.nav-group-left i { min-width: 20px; text-align: center; font-size: 15px; }

.nav-arrow {
    font-size: 10px;
    transition: transform 0.25s ease;
    opacity: 0.5;
}

.nav-group.open .nav-arrow { transform: rotate(180deg); }

.nav-group-items {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding-left: 6px;
}

.nav-group.open .nav-group-items { max-height: 1200px; }

/* === Level 2 — Nav Sub-Group (collapsible categories within a group) === */
.nav-sub-group {
    margin-top: 0;
    position: relative;
}

.nav-sub-group + .nav-sub-group {
    margin-top: 2px;
}

.nav-sub-group + .nav-sub-group::before {
    content: '';
    display: block;
    height: 1px;
    background: var(--sidebar-border-color);
    margin: 2px 16px 2px 12px;
}

.nav-sub-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 7px 12px 7px 10px;
    margin: 1px 4px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--sidebar-group-label);
    cursor: pointer;
    user-select: none;
    border-radius: 5px;
    transition: background 0.2s, color 0.2s;
}

.nav-sub-group-header:hover {
    background: var(--sidebar-hover-subtle);
    color: var(--sidebar-text-muted);
}

.nav-sub-group.open > .nav-sub-group-header {
    color: var(--sidebar-text-muted);
}

.nav-sub-group-header .nav-sub-arrow {
    font-size: 8px;
    transition: transform 0.25s ease;
    opacity: 0.4;
}

.nav-sub-group-header:hover .nav-sub-arrow {
    opacity: 0.6;
}

.nav-sub-group.open > .nav-sub-group-header .nav-sub-arrow {
    transform: rotate(180deg);
    opacity: 0.6;
}

.nav-sub-group > .nav-sub-group-items {
    max-height: 0 !important;
    overflow: hidden !important;
    transition: max-height 0.25s ease;
}

.nav-sub-group.open > .nav-sub-group-items {
    max-height: 300px !important;
}

/* === Level 3 — Sub-group menu items === */
.nav-sub-item {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 6px 12px 6px 18px;
    margin: 1px 6px 1px 8px;
    border-radius: 5px;
    color: var(--sidebar-sub-text);
    text-decoration: none;
    font-size: 11.5px;
    font-weight: 400;
    transition: background 0.2s, color 0.2s;
    white-space: nowrap;
    position: relative;
}

.nav-sub-item i {
    min-width: 15px;
    text-align: center;
    font-size: 11px;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.nav-sub-item:hover {
    background: var(--sidebar-hover-subtle);
    color: var(--sidebar-text-hover);
}
.nav-sub-item:hover i { opacity: 1; }

.nav-sub-item.active {
    background: var(--sidebar-active-bg);
    color: var(--sidebar-text-active);
    font-weight: 500;
}
.nav-sub-item.active i { opacity: 1; }

.nav-sub-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 3px;
    border-radius: 0 3px 3px 0;
    background: var(--primary-light);
}

.nav-divider {
    height: 1px;
    background: var(--sidebar-border-color);
    margin: 12px 14px;
}

/* === Sidebar Footer === */
.sidebar-footer {
    padding: 12px 14px;
    border-top: 1px solid var(--sidebar-border-color);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    min-width: 34px;
    width: 34px;
    height: 34px;
    background: var(--sidebar-tag-bg);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--sidebar-text-muted);
}

.user-info {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    white-space: nowrap;
}

.user-name { font-size: 12px; font-weight: 600; color: var(--sidebar-text-active); }
.user-role { font-size: 10px; color: var(--sidebar-text-dim); }

/* ============================================
   TOP HEADER
   ============================================ */
.top-header {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    height: var(--top-header-height);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 150;
    transition: left 0.3s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

body.sidebar-collapsed .top-header { left: var(--sidebar-collapsed); }

.top-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 18px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.breadcrumb a:hover { color: var(--primary); }

.breadcrumb-sep { color: var(--text-muted); font-size: 10px; }
.breadcrumb-current { color: var(--text-primary); font-weight: 600; }

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

.header-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    background: #f5f5f5;
    border-radius: 16px;
    font-size: 11px;
    color: var(--text-secondary);
}

.live-badge { background: #e8f5e9; color: var(--success); }

/* Period Toggle */
.period-toggle {
    display: flex;
    background: #f0f0f0;
    border-radius: 8px;
    padding: 2px;
    gap: 2px;
}
.period-btn {
    padding: 4px 14px;
    border: none;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    background: transparent;
    color: var(--text-muted);
    transition: all 0.2s;
}
.period-btn:hover { color: var(--text-primary); }
.period-btn.active {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

/* KPI Comparison Badge */
.kpi-compare {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
    margin-left: 4px;
    white-space: nowrap;
}
.kpi-compare.up { color: #2e7d32; background: #e8f5e9; }
.kpi-compare.down { color: #c62828; background: #ffebee; }
.kpi-compare.flat { color: #78909c; background: #f5f5f5; }
.kpi-compare.inverse-up { color: #c62828; background: #ffebee; }
.kpi-compare.inverse-down { color: #2e7d32; background: #e8f5e9; }
.kpi-compare i { font-size: 9px; }

/* Comparison wrapper inside stat cards */
.stat-value .kpi-compare,
.kpi-value .kpi-compare,
.metric-value .kpi-compare {
    font-size: 10px;
    vertical-align: middle;
}

.live-dot {
    width: 7px;
    height: 7px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

.btn-header {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    width: 34px;
    height: 34px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.btn-header:hover { background: #f5f5f5; color: var(--primary); }

/* ============================================
   MAIN CONTENT AREA
   ============================================ */
.main-content {
    margin-left: var(--sidebar-width);
    padding-top: var(--top-header-height);
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}

body.sidebar-collapsed .main-content { margin-left: var(--sidebar-collapsed); }

.page-body {
    padding: 20px 24px;
    max-width: 1600px;
}

/* ============================================
   PAGE TITLE
   ============================================ */
.page-title-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.page-title-bar h2 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.page-title-bar .page-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* ISO / NIST Control Badges */
.iso-badge, .nist-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.3px;
}
.iso-badge {
    background: #e3f2fd;
    color: #1565c0;
}
.nist-badge {
    background: #e8f5e9;
    color: #2e7d32;
}
.iso-badge i, .nist-badge i {
    font-size: 10px;
}

/* ============================================
   KPI CARDS (re-usable)
   ============================================ */
.kpi-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.kpi-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border-left: 4px solid transparent;
}

.kpi-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.kpi-card .kpi-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    margin-bottom: 12px;
}

.kpi-card .kpi-value {
    font-size: 28px;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 4px;
    letter-spacing: -0.5px;
}

.kpi-card .kpi-label {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.kpi-card .kpi-sub {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 6px;
}

/* Comparison indicators */
.comp-up { color: #2e7d32; font-weight: 600; }
.comp-down { color: #c62828; font-weight: 600; }
.comp-neutral { color: #9e9e9e; font-weight: 500; }
.comp-up i, .comp-down i, .comp-neutral i { font-size: 9px; margin-right: 2px; }
.kpi-sub .comp-up, .kpi-sub .comp-down, .kpi-sub .comp-neutral { font-size: 11px; }

/* KPI color variants */
.kpi-open    { border-left-color: var(--info); }
.kpi-open    .kpi-icon { background: #e3f2fd; color: var(--info); }
.kpi-new     { border-left-color: #7b1fa2; }
.kpi-new     .kpi-icon { background: #f3e5f5; color: #7b1fa2; }
.kpi-mttr    { border-left-color: var(--accent); }
.kpi-mttr    .kpi-icon { background: #fff3e0; color: var(--accent); }
.kpi-sla     { border-left-color: var(--success); }
.kpi-sla     .kpi-icon { background: #e8f5e9; color: var(--success); }
.kpi-breach  { border-left-color: var(--danger); }
.kpi-breach  .kpi-icon { background: #ffebee; color: var(--danger); }
.kpi-reopen  { border-left-color: var(--warning); }
.kpi-reopen  .kpi-icon { background: #fffde7; color: var(--warning); }
.kpi-total   { border-left-color: #455a64; }
.kpi-total   .kpi-icon { background: #eceff1; color: #455a64; }
.kpi-security { border-left-color: #6a1b9a; }
.kpi-security .kpi-icon { background: #f3e5f5; color: #6a1b9a; }

/* ============================================
   CHART PANELS (re-usable)
   ============================================ */
.chart-row {
    display: grid;
    gap: 16px;
    margin-bottom: 20px;
}

.chart-row.two-col { grid-template-columns: 1fr 1fr; }
.chart-row.three-col { grid-template-columns: 1fr 1fr 1fr; }
.chart-row.four-col { grid-template-columns: repeat(4, 1fr); }

.chart-panel {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.chart-panel:hover { box-shadow: var(--shadow-hover); }

.chart-header {
    padding: 16px 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chart-header h3 {
    margin: 0;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.chart-header .chart-badge {
    font-size: 11px;
    background: #f5f5f5;
    padding: 3px 10px;
    border-radius: 12px;
    color: var(--text-secondary);
}

.chart-body {
    padding: 16px 20px 20px;
    position: relative;
    min-height: 280px;
}

/* ============================================
   DATA TABLE (re-usable)
   ============================================ */
.table-panel {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: 20px;
}

.table-header {
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
}

.table-header h3 { margin: 0; font-size: 14px; font-weight: 700; }

.table-search {
    padding: 7px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    width: 240px;
    transition: var(--transition);
}

.table-search:focus { outline: none; border-color: var(--primary-light); box-shadow: 0 0 0 3px rgba(57,73,171,0.1); }

.data-table { width: 100%; border-collapse: collapse; }

.data-table thead th {
    padding: 10px 16px;
    text-align: left;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    background: #fafafa;
    border-bottom: 2px solid var(--border);
    cursor: pointer;
    white-space: nowrap;
    user-select: none;
}

.data-table thead th:hover { background: #f0f0f0; }
.data-table tbody tr { border-bottom: 1px solid #f5f5f5; transition: var(--transition); }
.data-table tbody tr:hover { background: #f8f9ff; }
.data-table tbody td { padding: 10px 16px; font-size: 13px; vertical-align: middle; }
.data-table .ticket-number { font-weight: 700; color: var(--primary); }
.data-table .ticket-name { max-width: 250px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ============================================
   BADGES (re-usable)
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
}

.badge-new        { background: #e3f2fd; color: #1565c0; }
.badge-assigned   { background: #f3e5f5; color: #7b1fa2; }
.badge-inprogress { background: #fff3e0; color: #e65100; }
.badge-onhold     { background: #fbe9e7; color: #bf360c; }
.badge-pending    { background: #eceff1; color: #546e7a; }
.badge-resolved   { background: #e8f5e9; color: #2e7d32; }
.badge-rejected   { background: #ffebee; color: #c62828; }
.badge-closed     { background: #efebe9; color: #4e342e; }
.badge-sla-ok      { background: #e8f5e9; color: #2e7d32; }
.badge-sla-warning { background: #fff8e1; color: #f57f17; }
.badge-sla-breach  { background: #ffebee; color: #c62828; }
.badge-priority-low    { background: #e8f5e9; color: #2e7d32; }
.badge-priority-normal { background: #e3f2fd; color: #1565c0; }
.badge-priority-high   { background: #fff3e0; color: #e65100; }
.badge-priority-urgent { background: #ffebee; color: #c62828; }

/* ============================================
   FILTER BAR (re-usable)
   ============================================ */
.filter-bar {
    background: var(--bg-card);
    padding: 14px 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.filter-bar label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.filter-bar select,
.filter-bar input[type="date"] {
    padding: 7px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    background: #fff;
    color: var(--text-primary);
    transition: var(--transition);
    min-width: 130px;
}

.filter-bar select:focus,
.filter-bar input[type="date"]:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(57,73,171,0.1);
}

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

.btn-filter {
    padding: 7px 18px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn-filter:hover { background: var(--primary-light); }

.btn-reset {
    padding: 7px 14px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
    transition: var(--transition);
}

.btn-reset:hover { background: #f5f5f5; }

/* ============================================
   LOADING
   ============================================ */
.loading-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(255,255,255,0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.loading-spinner { text-align: center; }

.loading-spinner .spinner {
    width: 48px; height: 48px;
    border: 4px solid #e0e0e0;
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

.loading-spinner p { color: var(--text-secondary); font-size: 14px; font-weight: 500; }
@keyframes spin { 100% { transform: rotate(360deg); } }

/* ============================================
   OVERVIEW CARDS (main dashboard)
   ============================================ */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.overview-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
    text-decoration: none;
    color: var(--text-primary);
    display: block;
    position: relative;
    overflow: hidden;
}

.overview-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--card-accent, var(--primary));
}

.overview-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
}

.overview-card .card-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 16px;
}

.overview-card h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
}

.overview-card p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.5;
}

.overview-card .card-stats {
    display: flex;
    gap: 20px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
}

.card-stat {
    text-align: center;
}

.card-stat .stat-value {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
}

.card-stat .stat-label {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

/* === Placeholder page === */
.placeholder-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
    text-align: center;
    color: var(--text-secondary);
}

.placeholder-page .placeholder-icon {
    font-size: 64px;
    color: var(--border);
    margin-bottom: 20px;
}

.placeholder-page h2 { font-size: 22px; color: var(--text-primary); margin-bottom: 8px; }
.placeholder-page p { font-size: 14px; max-width: 400px; }

/* ============================================
   FOOTER
   ============================================ */
.dashboard-footer {
    text-align: center;
    padding: 20px;
    color: var(--text-muted);
    font-size: 12px;
    border-top: 1px solid var(--border);
    margin-top: 20px;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1200px) {
    .chart-row.three-col { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 992px) {
    .sidebar { transform: translateX(-100%); width: var(--sidebar-width); }
    .sidebar.mobile-open { transform: translateX(0); }
    .top-header { left: 0; }
    .main-content { margin-left: 0; }
    .mobile-menu-btn { display: block; }
    .chart-row.two-col { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .kpi-row { grid-template-columns: repeat(2, 1fr); }
    .chart-row.three-col { grid-template-columns: 1fr; }
    .filter-bar { flex-direction: column; align-items: stretch; }
}

/* ============================================
   Module Tab Panes — Shared across all modules
   ISO 27001 / NIST aligned navigation tabs
   ============================================ */
.module-tabs-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 22px;
}
.module-tabs {
    display: flex;
    gap: 6px;
    background: transparent;
    border: none;
    width: fit-content;
    flex-wrap: wrap;
}
.module-tab {
    padding: 11px 22px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    user-select: none;
    text-decoration: none;
    position: relative;
    white-space: nowrap;
}
.module-tab:hover { color: var(--primary); background: #f5f7ff; border-color: var(--primary); }
.module-tab.active { color: #fff; background: var(--primary); border-color: var(--primary); }
.module-tab.active i { color: #fff; }
.module-tab i { font-size: 14px; color: var(--text-secondary); transition: color 0.2s; }
.module-tab:hover i { color: var(--primary); }
.module-tab .tab-iso {
    font-size: 9px;
    opacity: 0.6;
    font-weight: 500;
    letter-spacing: 0.3px;
}
.module-tab.active .tab-iso { opacity: 0.75; }
.module-tabs-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}
.module-tabs-actions .tab-action-btn {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    background: #fff;
    text-decoration: none;
    transition: all 0.2s;
    font-size: 15px;
}
.module-tabs-actions .tab-action-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: #f5f7ff;
}

@media (max-width: 1200px) {
    .module-tabs { flex-wrap: wrap; }
    .module-tab { padding: 9px 16px; font-size: 12px; }
}
@media (max-width: 768px) {
    .module-tabs-bar { flex-direction: column; align-items: flex-start; gap: 10px; }
    .module-tabs { width: 100%; }
    .module-tab { flex: 1; justify-content: center; padding: 9px 10px; font-size: 11px; }
}