/* ============================================================
   POLICY MANAGEMENT SYSTEM — Corporate Design System
   Refined Corporate Utilitarian
   ============================================================ */

:root {
    /* --- Primary Palette --- */
    --navy-900: #0B1929;
    --navy-800: #0F2136;
    --navy-700: #142B45;
    --navy-600: #1A3654;
    --navy-500: #234768;
    --navy-400: #2D5A82;

    /* --- Accent --- */
    --gold-500: #C8962E;
    --gold-400: #D4A84A;
    --gold-300: #E0BA66;
    --gold-600: #B0832A;

    /* --- Neutrals --- */
    --slate-900: #1A1D23;
    --slate-800: #2A2D35;
    --slate-700: #3A3D45;
    --slate-600: #52555D;
    --slate-500: #6B6E76;
    --slate-400: #8E9099;
    --slate-300: #B0B2BA;
    --slate-200: #D1D3D9;
    --slate-100: #E8E9ED;
    --slate-50: #F3F4F6;
    --white: #FFFFFF;

    /* --- Semantic --- */
    --success: #1B8F5A;
    --success-bg: #E8F5EE;
    --danger: #C0392B;
    --danger-bg: #FBEAE8;
    --warning: #D4880F;
    --warning-bg: #FDF3E3;
    --info: #2471A3;
    --info-bg: #E6F0F8;

    /* --- Dimensions --- */
    --sidebar-width: 248px;
    --sidebar-collapsed: 62px;
    --topbar-height: 52px;

    /* --- Typography --- */
    --font-display: 'DM Serif Display', Georgia, 'Times New Roman', serif;
    --font-body: 'Source Sans 3', 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'Cascadia Code', 'Fira Code', monospace;

    /* --- Shadows --- */
    --shadow-sm: 0 1px 3px rgba(11,25,41,0.05), 0 1px 2px rgba(11,25,41,0.03);
    --shadow-md: 0 4px 6px rgba(11,25,41,0.06), 0 2px 4px rgba(11,25,41,0.04);
    --shadow-lg: 0 10px 20px rgba(11,25,41,0.08), 0 3px 6px rgba(11,25,41,0.05);
    --shadow-inset: inset 0 1px 2px rgba(11,25,41,0.06);

    /* --- Radius --- */
    --radius-sm: 4px;
    --radius-md: 6px;
}

/* ============================================================
   GLOBAL RESET & BASE
   ============================================================ */

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.5;
    color: var(--slate-800);
    background-color: var(--slate-50);
    margin: 0;
    padding: 0;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 400;
    color: var(--navy-900);
    letter-spacing: -0.01em;
}

h5, h6 {
    font-family: var(--font-body);
    font-weight: 600;
    color: var(--navy-800);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-size: 0.72rem;
}

a {
    color: var(--navy-500);
    text-decoration: none;
}

a:hover {
    color: var(--gold-500);
}

::selection {
    background: var(--gold-300);
    color: var(--navy-900);
}

/* ============================================================
   LAYOUT — Page Shell
   ============================================================ */

.page {
    display: flex;
    flex-direction: row;
    min-height: 100vh;
}

/* ============================================================
   SIDEBAR
   ============================================================ */

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--navy-900) 0%, var(--navy-800) 100%);
    color: var(--slate-200);
    padding: 0;
    transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-x: hidden;
    overflow-y: auto;
    z-index: 1000;
    border-right: 1px solid var(--navy-700);
}

.sidebar::-webkit-scrollbar {
    width: 4px;
}

.sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--navy-600);
    border-radius: 2px;
}

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

/* ============================================================
   SIDEBAR — Navigation Menu
   ============================================================ */

.nav-menu {
    padding: 0;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.nav-header-item .nav-link {
    padding: 14px 16px;
    border-bottom: 1px solid var(--navy-700);
    margin-bottom: 0;
    font-family: var(--font-display);
    font-size: 1.1rem;
    letter-spacing: 0.02em;
    color: var(--white);
}

.nav-header-item .nav-link:hover {
    background: var(--navy-800);
}

.nav-header-item .nav-link .nav-text {
    color: var(--gold-400);
}

.nav-menu .flex-column {
    flex: 1;
    padding: 8px 0;
}

.nav-item {
    padding: 0 8px !important;
}

.nav-link {
    color: var(--slate-300);
    padding: 8px 12px;
    margin-bottom: 1px;
    border-radius: 0;
    display: flex;
    align-items: center;
    transition: all 0.15s ease;
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    border-left: 3px solid transparent;
    cursor: pointer;
}

.nav-link:hover {
    background: var(--navy-800);
    color: var(--white);
    border-left-color: var(--navy-500);
}

.nav-link.active {
    background: var(--navy-800);
    color: var(--gold-400);
    border-left-color: var(--gold-500);
    font-weight: 600;
}

.nav-link i {
    width: 18px;
    margin-right: 10px;
    font-size: 0.82rem;
    text-align: center;
    flex-shrink: 0;
    opacity: 0.7;
}

.nav-link:hover i,
.nav-link.active i {
    opacity: 1;
}

.nav-link .nav-text {
    white-space: nowrap;
    overflow: hidden;
}

/* Override FontAwesome color classes in nav to inherit */
.nav-link i.text-warning,
.nav-link i.text-danger,
.nav-link i.text-info,
.nav-link i.text-primary {
    color: inherit !important;
}

.nav-link.active i.text-warning,
.nav-link.active i.text-danger,
.nav-link.active i.text-info,
.nav-link.active i.text-primary {
    color: var(--gold-400) !important;
}

/* Section dividers */
.nav-menu hr {
    border-color: var(--navy-700);
    opacity: 0.5;
    margin: 8px 12px;
}

/* Section labels */
.nav-menu .text-uppercase.text-muted {
    color: var(--slate-500) !important;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.62rem !important;
    letter-spacing: 1.5px;
    padding: 4px 12px;
}

/* External link indicator */
.nav-link .fa-external-link-alt {
    opacity: 0.4;
    font-size: 0.55rem !important;
}

/* Collapsed state */
.nav-menu.collapsed .nav-text,
.nav-menu.collapsed .fa-external-link-alt {
    display: none;
}

.nav-menu.collapsed .nav-link {
    justify-content: center;
    padding: 10px 8px;
    border-left-width: 0;
}

.nav-menu.collapsed .nav-link i {
    margin-right: 0;
    font-size: 0.95rem;
}

.nav-menu.collapsed .nav-header-item .nav-link {
    justify-content: center;
    font-size: 1.2rem;
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */

main {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: margin-left 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

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

/* ============================================================
   TOP BAR
   ============================================================ */

.top-row {
    background: var(--white);
    border-bottom: none;
    box-shadow: 0 1px 3px rgba(11,25,41,0.06);
    height: var(--topbar-height);
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 500;
    flex-shrink: 0;
}

.top-row .app-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--navy-900);
    margin: 0;
    line-height: 1;
}

.top-row .app-subtitle {
    font-family: var(--font-body);
    font-size: 0.72rem;
    color: var(--slate-400);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
    margin: 0;
    line-height: 1;
}

.top-row .app-version {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--slate-400);
    padding: 2px 8px;
    background: var(--slate-50);
    border: 1px solid var(--slate-200);
}

/* ============================================================
   CONTENT AREA
   ============================================================ */

.content {
    padding: 24px 28px;
    flex: 1;
}

/* ============================================================
   PAGE HEADER
   ============================================================ */

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--slate-200);
}

.page-header h3 {
    margin: 0;
    font-size: 1.6rem;
}

.page-header h3 i {
    color: var(--gold-500);
    margin-right: 8px;
    font-size: 0.85em;
}

/* ============================================================
   CARDS — Corporate Style
   ============================================================ */

.card {
    background: var(--white);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    margin-bottom: 16px;
}

.card-header {
    background: var(--slate-50);
    border-bottom: 1px solid var(--slate-200);
    padding: 10px 16px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--navy-800);
}

.card-header strong {
    font-weight: 600;
}

.card-body {
    padding: 20px;
}

/* Card with gold left accent */
.card-accent {
    border-left: 3px solid var(--gold-500);
}

/* ============================================================
   KPI CARDS — Financial Data Display
   ============================================================ */

.kpi-card {
    background: var(--white);
    border: 1px solid var(--slate-200);
    border-left: 4px solid var(--gold-500);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    color: var(--slate-800);
    text-align: left;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.kpi-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.kpi-card h6 {
    font-family: var(--font-body);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--slate-500);
    margin-bottom: 6px;
    font-weight: 700;
    opacity: 1;
}

.kpi-card h3 {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--navy-900);
    margin-bottom: 0;
    letter-spacing: -0.02em;
}

/* KPI accent variants */
.kpi-card--gold {
    border-left-color: var(--gold-500);
}

.kpi-card--success {
    border-left-color: var(--success);
}

.kpi-card--info {
    border-left-color: var(--info);
}

.kpi-card--danger {
    border-left-color: var(--danger);
}

.kpi-card--navy {
    border-left-color: var(--navy-500);
}

/* Override inline gradient styles from old code */
.kpi-card[style*="background"] {
    background: var(--white) !important;
    color: var(--slate-800) !important;
}

.kpi-card[style*="background"] h6 {
    color: var(--slate-500) !important;
}

.kpi-card[style*="background"] h3 {
    color: var(--navy-900) !important;
}

/* ============================================================
   TABLES — Dense Financial Grid
   ============================================================ */

.table {
    font-size: 0.82rem;
    margin-bottom: 0;
}

.table thead th {
    background: var(--navy-900);
    color: var(--slate-200);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 8px 12px;
    border: none;
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 10;
}

.table-dark th,
.table-dark td {
    background: var(--navy-900) !important;
    color: var(--slate-200) !important;
    border-color: var(--navy-700) !important;
}

.table tbody td {
    padding: 7px 12px;
    border-bottom: 1px solid var(--slate-100);
    vertical-align: middle;
    color: var(--slate-700);
}

.table tbody tr:hover {
    background: rgba(200, 150, 46, 0.04);
}

.table tbody tr:nth-child(even) {
    background-color: rgba(243, 244, 246, 0.5);
}

.table tbody tr:nth-child(even):hover {
    background: rgba(200, 150, 46, 0.06);
}

/* Financial numbers in tables */
.table .text-end {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: -0.01em;
}

.table tfoot {
    background: var(--slate-50);
    border-top: 2px solid var(--slate-300);
}

.table tfoot td {
    font-weight: 600;
    color: var(--navy-900);
    padding: 8px 12px;
}

.table-secondary {
    --bs-table-bg: var(--slate-50);
}

/* Remove Bootstrap table-striped (we use our own) */
.table-striped > tbody > tr:nth-of-type(odd) > * {
    --bs-table-bg-type: transparent;
}

/* Table clickable rows */
.table tbody tr[style*="cursor:pointer"]:hover,
.table tbody tr[style*="cursor: pointer"]:hover {
    background: rgba(200, 150, 46, 0.08);
}

.table-responsive {
    max-height: 600px;
    overflow-y: auto;
    border: 1px solid var(--slate-200);
}

/* ============================================================
   TABS — Sharp corporate tabs
   ============================================================ */

.nav-tabs {
    border-bottom: 2px solid var(--slate-200);
}

.nav-tabs .nav-link {
    border: none;
    border-bottom: 2px solid transparent;
    border-radius: 0;
    color: var(--slate-500);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 10px 16px;
    margin-bottom: -2px;
    transition: all 0.15s ease;
    background: transparent;
    border-left: none;
}

.nav-tabs .nav-link:hover {
    color: var(--navy-800);
    border-bottom-color: var(--slate-300);
    background: transparent;
}

.nav-tabs .nav-link.active {
    color: var(--gold-600);
    border-bottom-color: var(--gold-500);
    background: transparent;
    font-weight: 700;
    border-left: none;
}

.nav-tabs .nav-link i {
    margin-right: 6px;
    font-size: 0.75em;
    opacity: 0.7;
    width: auto;
}

.nav-tabs .nav-link.active i {
    opacity: 1;
}

.tab-content {
    border: 1px solid var(--slate-200);
    border-top: none;
    background: var(--white);
    padding: 20px;
}

/* ============================================================
   FORMS — Clean corporate inputs
   ============================================================ */

.form-control,
.form-select {
    border-radius: var(--radius-sm);
    border: 1px solid var(--slate-300);
    font-family: var(--font-body);
    font-size: 0.85rem;
    padding: 6px 10px;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--gold-500);
    box-shadow: 0 0 0 2px rgba(200, 150, 46, 0.15);
}

.form-label {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--slate-600);
    margin-bottom: 3px;
}

.form-control-sm,
.form-select-sm {
    padding: 4px 8px;
    font-size: 0.82rem;
}

/* ============================================================
   BUTTONS — Corporate actions
   ============================================================ */

.btn {
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 6px 16px;
    transition: all 0.15s ease;
}

.btn-primary {
    background: var(--navy-800);
    border-color: var(--navy-800);
    color: var(--white);
}

.btn-primary:hover,
.btn-primary:focus {
    background: var(--navy-700);
    border-color: var(--navy-700);
    box-shadow: var(--shadow-md);
}

.btn-outline-primary {
    border-color: var(--navy-500);
    color: var(--navy-500);
}

.btn-outline-primary:hover {
    background: var(--navy-800);
    border-color: var(--navy-800);
    color: var(--white);
}

.btn-outline-secondary {
    border-color: var(--slate-300);
    color: var(--slate-600);
}

.btn-outline-secondary:hover {
    background: var(--slate-100);
    border-color: var(--slate-400);
    color: var(--slate-800);
}

.btn-warning {
    background: var(--gold-500);
    border-color: var(--gold-500);
    color: var(--white);
}

.btn-warning:hover {
    background: var(--gold-600);
    border-color: var(--gold-600);
    color: var(--white);
}

.btn-sm {
    padding: 4px 12px;
    font-size: 0.75rem;
}

/* ============================================================
   BADGES — Muted, professional
   ============================================================ */

.badge {
    border-radius: 3px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 3px 8px;
}

.badge.bg-success {
    background: var(--success) !important;
}

.badge.bg-danger {
    background: var(--danger) !important;
}

.badge.bg-warning {
    background: var(--warning) !important;
    color: var(--white) !important;
}

.badge.bg-secondary {
    background: var(--slate-400) !important;
}

.badge.bg-info {
    background: var(--info) !important;
    color: var(--white) !important;
}

.badge.bg-primary {
    background: var(--navy-700) !important;
}

.badge.fs-6 {
    font-size: 0.75rem !important;
    padding: 4px 10px;
}

/* ============================================================
   FIELD DISPLAY — Label/value pairs
   ============================================================ */

.field-pair small.text-muted,
.col-md-4 > small.text-muted,
.col-lg-3 > small.text-muted,
.col-md-3 > small.text-muted {
    font-family: var(--font-body);
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--slate-500) !important;
    display: block;
    margin-bottom: 2px;
}

.col-md-4 > span,
.col-lg-3 > span,
.col-md-3 > span {
    font-size: 0.88rem;
    color: var(--navy-900);
    font-weight: 500;
}

/* ============================================================
   METRIC ITEMS
   ============================================================ */

.metric-item {
    padding: 8px 0;
    border-bottom: 1px solid var(--slate-100);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.metric-item:last-child {
    border-bottom: none;
}

.metric-label {
    font-weight: 600;
    font-size: 0.82rem;
    color: var(--slate-600);
}

.metric-value {
    font-family: var(--font-mono);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--gold-600);
}

/* ============================================================
   ALERTS
   ============================================================ */

.alert {
    border-radius: var(--radius-sm);
    border: 1px solid;
    font-size: 0.85rem;
}

.alert-info {
    background: var(--info-bg);
    border-color: #B8D4E8;
    color: var(--info);
}

.alert-success {
    background: var(--success-bg);
    border-color: #B8DEC8;
    color: var(--success);
}

.alert-danger {
    background: var(--danger-bg);
    border-color: #E8B8B4;
    color: var(--danger);
}

.alert-warning {
    background: var(--warning-bg);
    border-color: #E8D4A0;
    color: #946210;
}

/* ============================================================
   PAGINATION
   ============================================================ */

.pagination {
    gap: 2px;
}

.page-link {
    border-radius: 0;
    border: 1px solid var(--slate-200);
    color: var(--navy-800);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 500;
    padding: 4px 10px;
}

.page-link:hover {
    background: var(--slate-100);
    border-color: var(--slate-300);
    color: var(--navy-900);
}

.page-item.active .page-link {
    background: var(--navy-800);
    border-color: var(--navy-800);
    color: var(--white);
}

.page-item.disabled .page-link {
    color: var(--slate-300);
    background: var(--white);
}

/* ============================================================
   SPINNER
   ============================================================ */

.spinner-border {
    width: 2.5rem;
    height: 2.5rem;
    border-width: 2px;
    color: var(--gold-500);
}

.spinner-border.text-primary {
    color: var(--gold-500) !important;
}

/* ============================================================
   QUICK LINK CARDS (Dashboard)
   ============================================================ */

.card .btn-outline-primary {
    border-color: var(--navy-500);
    color: var(--navy-500);
}

.card .btn-outline-primary:hover {
    background: var(--navy-800);
    border-color: var(--navy-800);
    color: var(--white);
}

/* ============================================================
   EXPANDED ROW (Coverage detail)
   ============================================================ */

.bg-light {
    background: var(--slate-50) !important;
}

/* ============================================================
   SCROLLBARS (Content area)
   ============================================================ */

.table-responsive::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

.table-responsive::-webkit-scrollbar-track {
    background: var(--slate-50);
}

.table-responsive::-webkit-scrollbar-thumb {
    background: var(--slate-300);
}

.table-responsive::-webkit-scrollbar-thumb:hover {
    background: var(--slate-400);
}

/* ============================================================
   TEXT UTILITIES
   ============================================================ */

.text-primary {
    color: var(--navy-800) !important;
}

.text-warning {
    color: var(--gold-500) !important;
}

/* ============================================================
   BLAZOR ERROR UI
   ============================================================ */

#blazor-error-ui {
    background: var(--danger-bg);
    border-top: 2px solid var(--danger);
    bottom: 0;
    display: none;
    left: 0;
    padding: 8px 20px;
    position: fixed;
    width: 100%;
    z-index: 9999;
    font-size: 0.85rem;
    color: var(--danger);
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 12px;
    top: 8px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 992px) {
    .sidebar {
        width: var(--sidebar-collapsed);
    }

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

    .nav-text,
    .nav-menu .fa-external-link-alt {
        display: none;
    }

    .nav-link {
        justify-content: center;
        padding: 10px 8px;
        border-left-width: 0;
    }

    .nav-link i {
        margin-right: 0;
        font-size: 0.95rem;
    }

    .nav-header-item .nav-link {
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }

    main {
        margin-left: 0;
    }

    .content {
        padding: 12px;
    }
}

/* ============================================================
   ANIMATION — Subtle page load
   ============================================================ */

@keyframes fadeSlideIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content > * {
    animation: fadeSlideIn 0.3s ease-out;
}

/* Staggered load for KPI row */
.kpi-card:nth-child(1) { animation: fadeSlideIn 0.3s ease-out 0.05s both; }
.kpi-card:nth-child(2) { animation: fadeSlideIn 0.3s ease-out 0.1s both; }
.kpi-card:nth-child(3) { animation: fadeSlideIn 0.3s ease-out 0.15s both; }
.kpi-card:nth-child(4) { animation: fadeSlideIn 0.3s ease-out 0.2s both; }