/* ============================================================================
   NetgenHR Design System
   Version: 0.5.0 — Internal Launch
   ============================================================================ */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties (Design Tokens)
   -------------------------------------------------------------------------- */
:root {
    /* Layout */
    --sidebar-width: 250px;

    /* Colors — Primary palette */
    --color-primary: #4361ee;
    --color-primary-hover: #3a56d4;
    --color-primary-light: #eef1fd;

    /* Colors — Status */
    --color-success: #198754;
    --color-warning: #ffc107;
    --color-danger: #dc3545;
    --color-info: #0dcaf0;

    /* Colors — Neutral */
    --color-bg: #f5f6fa;
    --color-surface: #ffffff;
    --color-border: #e2e5f1;
    --color-text: #2d3748;
    --color-text-muted: #6c757d;
    --color-text-light: #a0aec0;

    /* Sidebar */
    --sidebar-bg: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
    --sidebar-text: rgba(255, 255, 255, 0.75);
    --sidebar-text-hover: #ffffff;
    --sidebar-active-bg: rgba(67, 97, 238, 0.2);
    --sidebar-active-text: #4361ee;
    --sidebar-border: rgba(255, 255, 255, 0.06);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.7rem;
    --font-size-sm: 0.8rem;
    --font-size-base: 0.875rem;
    --font-size-lg: 1rem;
    --font-size-xl: 1.25rem;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
}


/* --------------------------------------------------------------------------
   2. Base & Typography
   -------------------------------------------------------------------------- */
html {
    background-color: var(--color-bg);
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--color-text);
}


/* --------------------------------------------------------------------------
   3. Sidebar
   -------------------------------------------------------------------------- */
.sidebar {
    width: var(--sidebar-width);
    min-height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background: var(--sidebar-bg);
    z-index: 1040;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-base);
}

.sidebar-header {
    padding: var(--space-lg) var(--space-md);
    border-bottom: 1px solid var(--sidebar-border);
}

.sidebar-header h5 {
    color: #fff;
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.sidebar-header small {
    color: var(--sidebar-text);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Sidebar nav links */
.sidebar .nav-link {
    color: var(--sidebar-text);
    padding: 0.6rem 1rem;
    border-radius: var(--radius-sm);
    margin: 2px 0.5rem;
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.sidebar .nav-link:hover {
    color: var(--sidebar-text-hover);
    background-color: rgba(255, 255, 255, 0.08);
}

.sidebar .nav-link.active {
    color: var(--sidebar-active-text);
    background-color: var(--sidebar-active-bg);
    font-weight: 500;
}

.sidebar .nav-link i {
    margin-right: 0.5rem;
    width: 20px;
    text-align: center;
    font-size: 1rem;
}

/* Settings divider in sidebar */
.sidebar .settings-label {
    color: rgba(255, 255, 255, 0.4);
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Sidebar user footer */
.sidebar-footer {
    padding: var(--space-md);
    border-top: 1px solid var(--sidebar-border);
    margin-top: auto;
}

/* Mobile sidebar close button */
.sidebar-close {
    display: none;
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.25rem;
    line-height: 1;
    z-index: 1;
}

.sidebar-close:hover {
    color: #fff;
}

/* Sidebar overlay backdrop for mobile */
.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1039;
}

.sidebar-backdrop.show {
    display: block;
}

.sidebar.show {
    transform: translateX(0) !important;
}


/* --------------------------------------------------------------------------
   4. Main Content
   -------------------------------------------------------------------------- */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    background-color: var(--color-bg);
}

.main-content.no-sidebar {
    margin-left: 0;
}


/* --------------------------------------------------------------------------
   5. Header
   -------------------------------------------------------------------------- */
header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.sidebar-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text);
    padding: 0;
    line-height: 1;
    cursor: pointer;
}


/* --------------------------------------------------------------------------
   6. Cards
   -------------------------------------------------------------------------- */
.card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    background: var(--color-surface);
}

.card-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

/* KPI Stat Cards */
.kpi-grid {
    /* Ensure all 5 KPI cards sit on one row at xl+ viewports */
    --bs-gutter-x: 1rem;
}

.kpi-grid > [class*="col-xl"] {
    flex: 1 0 0%;
    min-width: 0;
}

.kpi-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-fast);
    height: 100%;
}

.kpi-card:hover {
    box-shadow: var(--shadow-md);
}

.kpi-card .kpi-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.kpi-card .kpi-value {
    font-size: var(--font-size-xl);
    font-weight: 700;
    line-height: 1;
}

.kpi-card .kpi-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: 0.25rem;
}

/* Accent border cards (left stripe) */
.card-stat {
    border-left: 4px solid;
}

.card-stat.danger { border-left-color: var(--color-danger); }
.card-stat.warning { border-left-color: var(--color-warning); }
.card-stat.success { border-left-color: var(--color-success); }
.card-stat.info { border-left-color: var(--color-info); }

/* Urgency border cards (top stripe) */
.card-urgent { border-top: 3px solid var(--color-danger); }
.card-warning { border-top: 3px solid var(--color-warning); }
.card-muted { border-top: 3px solid var(--color-border); }

/* All-clear alerts card */
.card-alerts-clear {
    background-color: #f8faf8;
    border: 1px dashed var(--color-border);
}


/* --------------------------------------------------------------------------
   7. Dashboard
   -------------------------------------------------------------------------- */

/* Section labels */
.section-label {
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-top: 0.5rem;
    margin-bottom: 0.75rem;
    padding-left: 0.25rem;
}

/* Quick actions bar */
.quick-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: var(--space-lg);
}

.quick-actions .btn {
    font-size: var(--font-size-sm);
    font-weight: 500;
    border-radius: var(--radius-sm);
}

/* Risk bar */
.risk-bar-segment { height: 8px; }

/* Payroll status line */
.payroll-status {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    padding: 0.5rem 0;
}


/* --------------------------------------------------------------------------
   8. Badges
   -------------------------------------------------------------------------- */
.badge-risk-high { background-color: var(--color-danger); color: #fff; }
.badge-risk-medium { background-color: var(--color-warning); color: #000; }
.badge-risk-low { background-color: var(--color-success); color: #fff; }

.badge-status-active { background-color: var(--color-success); }
.badge-status-notice { background-color: var(--color-warning); color: #000; }
.badge-status-terminated { background-color: #6c757d; }


/* --------------------------------------------------------------------------
   9. Tables
   -------------------------------------------------------------------------- */
.table th {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}


/* --------------------------------------------------------------------------
   10. Employee Detail
   -------------------------------------------------------------------------- */
.avatar-wrap {
    flex-shrink: 0;
}

.avatar-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    font-weight: 600;
    color: #fff;
    background: var(--color-primary);
    flex-shrink: 0;
}

.avatar-photo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-border);
}

.avatar-upload-btn {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    cursor: pointer;
    border: 2px solid var(--color-surface);
    transition: background var(--transition-fast);
    opacity: 0;
}

.avatar-wrap:hover .avatar-upload-btn {
    opacity: 1;
}

.profile-header {
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 1.25rem;
    margin-bottom: 1.25rem;
}

.tab-label-badge {
    font-size: var(--font-size-xs);
}

/* Content area tab styling */
.nav-tabs .nav-link {
    color: var(--color-text-muted) !important;
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.nav-tabs .nav-link:hover {
    color: var(--color-primary) !important;
}

.nav-tabs .nav-link.active {
    color: var(--color-text) !important;
    background-color: var(--color-surface) !important;
    font-weight: 600;
}

.masked-field { font-family: monospace; letter-spacing: 0.05em; }
.permit-expired { color: var(--color-danger); font-weight: 600; }
.permit-warn-90 { color: var(--color-danger); }
.permit-warn-180 { color: #fd7e14; }
.permit-ok { color: var(--color-success); }
.section-label-inline {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.field-row th {
    width: 40%;
    font-weight: 500;
    color: #495057;
}

.stat-mini {
    text-align: center;
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.stat-mini .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.stat-mini .stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: 0.25rem;
}


/* --------------------------------------------------------------------------
   11. Compliance Alerts Widget
   -------------------------------------------------------------------------- */
.compliance-alert-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
}

.compliance-alert-item + .compliance-alert-item {
    border-top: 1px solid var(--color-border);
}


/* --------------------------------------------------------------------------
   12. Global Employee Search
   -------------------------------------------------------------------------- */
.global-search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 1050;
    max-height: 400px;
    overflow-y: auto;
    margin-top: 4px;
}

.global-search-item {
    padding: 0.5rem 1rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--transition-fast);
}

.global-search-item:hover,
.global-search-item.active {
    background: var(--color-primary-light);
}

.global-search-name {
    font-weight: 500;
    font-size: var(--font-size-base);
}

.global-search-empty {
    padding: 0.75rem 1rem;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    text-align: center;
}


/* --------------------------------------------------------------------------
   13. Mobile Card Views (for employee/candidate lists)
   -------------------------------------------------------------------------- */
.mobile-card-list {
    display: none;
}

.mobile-card-list .employee-card,
.mobile-card-list .candidate-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-bottom: var(--space-sm);
}

.mobile-card-list .card-name {
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.mobile-card-list .card-meta {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}


/* --------------------------------------------------------------------------
   14. Mobile Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
    /* Sidebar */
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar-close {
        display: block;
    }

    .main-content {
        margin-left: 0;
    }

    /* Header */
    header h4 { font-size: 1.1rem; }

    /* KPI cards stack 2x2 */
    .kpi-grid .col-md-3 {
        flex: 0 0 50%;
        max-width: 50%;
    }

    /* Quick actions go vertical */
    .quick-actions {
        flex-direction: column;
    }

    .quick-actions .btn {
        width: 100%;
        text-align: left;
    }

    /* Tables: show mobile cards, hide desktop table */
    .desktop-table {
        display: none !important;
    }

    .mobile-card-list {
        display: block !important;
    }

    /* Tab navigation: horizontal scroll */
    .nav-tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .nav-tabs::-webkit-scrollbar {
        display: none;
    }

    .nav-tabs .nav-item {
        flex-shrink: 0;
    }

    .nav-tabs .nav-link {
        white-space: nowrap;
        padding: 0.5rem 0.75rem;
    }

    /* Employee detail: stack profile header */
    .profile-header {
        flex-direction: column;
        text-align: center;
    }

    .profile-header .d-flex.gap-2 {
        justify-content: center;
        margin-top: 0.75rem;
    }

    /* Dashboard: full-width columns */
    .dashboard-zone .col-md-6 {
        flex: 0 0 100%;
        max-width: 100%;
    }

    /* Card body padding reduction */
    main.p-4 {
        padding: 1rem !important;
    }
}

@media (max-width: 480px) {
    /* Extra small: KPI cards full width */
    .kpi-grid .col-md-3 {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

/* --------------------------------------------------------------------------
   15. Dashboard Visual Refresh (Phase 4)
   -------------------------------------------------------------------------- */

/* KPI cards: coloured left border + hover lift */
.kpi-card {
    border-left: 3px solid transparent;
    transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

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

/* Semantic KPI borders */
.kpi-card.kpi-primary { border-left-color: var(--color-primary); }
.kpi-card.kpi-info { border-left-color: var(--color-info); }
.kpi-card.kpi-warning { border-left-color: var(--color-warning); }
.kpi-card.kpi-danger { border-left-color: var(--color-danger); }
.kpi-card.kpi-success { border-left-color: var(--color-success); }

/* Larger KPI icons */
.kpi-card .kpi-icon {
    width: 52px;
    height: 52px;
    font-size: 1.4rem;
}

/* Cards: upgraded radius and shadow */
.card {
    border-radius: var(--radius-lg);
}

/* Section labels: icon + bottom border treatment */
.section-label {
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
    margin-top: 1.5rem;
}

/* Task summary card */
.task-summary-card {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, #f0f4ff 100%);
    border: 1px solid rgba(67, 97, 238, 0.15);
}

.task-summary-card .task-count {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.task-summary-card .task-progress {
    height: 6px;
    border-radius: 3px;
    background: rgba(67, 97, 238, 0.1);
}

.task-summary-card .task-progress-bar {
    height: 100%;
    border-radius: 3px;
    background: var(--color-primary);
    transition: width 0.4s ease;
}

/* Tabbed attention card styling */
.attention-tabs .nav-pills .nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
}

.attention-tabs .nav-pills .nav-link.active {
    background: var(--color-primary);
    color: #fff;
}

.attention-tabs .nav-pills .nav-link .badge {
    font-size: 0.65rem;
    vertical-align: middle;
}

/* Zone spacing */
.dashboard-zone {
    margin-bottom: 2rem;
}

/* List group items: more breathing room */
.list-group-item {
    padding: 0.75rem 1rem;
}