/* ISR Repository — melytics-inspired light theme (ISR accent) */

:root {
    /* ISR brand */
    --isr-primary: #0047BB;
    --isr-secondary: #001A70;
    --isr-accent: #92C1E9;
    --isr-primary-light: #0056d6;
    --isr-primary-dark: #003a99;
    --isr-success: #44883E;

    /* Achromatic chrome */
    --bg: #f7f9fc;
    --surface: #ffffff;
    --surface-nested: #eef3fa;
    --ink: #0b0b0b;
    --ink-2: #52514e;
    --ink-3: #8a8984;
    --accent-soft: rgba(0, 71, 187, 0.12);
    --border: color-mix(in srgb, var(--isr-secondary) 10%, transparent);
    --shadow: 0 1px 2px rgba(0, 26, 112, 0.04), 0 4px 16px rgba(0, 26, 112, 0.06);
    --radius: 14px;
    --radius-sm: 10px;
    --radius-pill: 999px;

    /* Accent tint family */
    --t1: var(--isr-primary);
    --t2: color-mix(in srgb, var(--isr-primary) 68%, var(--surface));
    --t3: color-mix(in srgb, var(--isr-primary) 44%, var(--surface));
    --t4: color-mix(in srgb, var(--isr-primary) 26%, var(--surface));
    --t5: color-mix(in srgb, var(--isr-primary) 13%, var(--surface));

    /* Bootstrap overrides */
    --bs-body-bg: var(--bg);
    --bs-body-color: var(--ink);
    --bs-primary: var(--isr-primary);
    --bs-primary-rgb: 0, 71, 187;
    --bs-link-color: var(--isr-primary);
    --bs-link-hover-color: var(--isr-primary-light);
    --bs-border-radius: var(--radius-sm);
    --bs-border-radius-lg: var(--radius);
}

/* Layout */
html,
body {
    height: 100%;
}

html {
    overflow-x: clip;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: var(--bg);
    color: var(--ink);
    font-family: ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
}

main {
    flex: 1 0 auto;
}

footer {
    flex-shrink: 0;
}

.page-wrap {
    width: 100%;
    max-width: 1320px;
    margin: 0 auto;
    padding: 1.5rem 1.25rem 2.5rem;
}

@media (min-width: 768px) {
    .page-wrap {
        padding: 2rem 1.75rem 3rem;
    }
}

/* Typography */
.page-title {
    font-size: 1.625rem;
    font-weight: 650;
    letter-spacing: -0.02em;
    color: var(--isr-secondary);
    margin-bottom: 0.25rem;
}

.page-subtitle {
    color: var(--ink-2);
    font-size: 0.9375rem;
    margin-bottom: 0;
}

.section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--isr-secondary);
    margin-bottom: 0;
}

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

.text-muted {
    color: var(--ink-2) !important;
}

.bg-primary {
    background-color: var(--isr-primary) !important;
}

/* Navbar — light chrome */
.isr-navbar-inner {
    max-width: 1320px;
    margin: 0 auto;
    padding-left: 1.25rem;
    padding-right: 1.25rem;
}

@media (min-width: 768px) {
    .isr-navbar-inner {
        padding-left: 1.75rem;
        padding-right: 1.75rem;
    }
}

.isr-navbar {
    background: color-mix(in srgb, var(--surface) 88%, transparent) !important;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 1px 0 rgba(0, 26, 112, 0.03);
    padding-top: 0.65rem;
    padding-bottom: 0.65rem;
}

.isr-navbar .navbar-brand {
    font-weight: 650;
    font-size: 1.05rem;
    letter-spacing: -0.02em;
    color: var(--isr-secondary) !important;
}

.isr-navbar .nav-link {
    color: var(--ink-2) !important;
    font-size: 0.9375rem;
    font-weight: 500;
    padding: 0.4rem 0.85rem !important;
    border-radius: var(--radius-pill);
    transition: color 0.15s ease, background 0.15s ease;
}

.isr-navbar .nav-link:hover,
.isr-navbar .nav-link:focus {
    color: var(--isr-primary) !important;
    background: var(--accent-soft);
}

.isr-navbar .nav-link.active {
    color: var(--isr-primary) !important;
    background: var(--accent-soft);
}

.isr-navbar .navbar-toggler {
    border-color: var(--border);
    padding: 0.35rem 0.55rem;
}

.isr-navbar .navbar-toggler-icon {
    filter: none;
    opacity: 0.65;
}

/* Footer — quiet */
.isr-footer {
    background: var(--bg) !important;
    color: var(--ink-3) !important;
    border-top: 1px solid var(--border);
    padding: 1.25rem 0 !important;
}

.isr-footer p {
    font-size: 0.8125rem;
    margin: 0;
}

/* Cards — de-boxed */
.card {
    background: var(--surface);
    border: none !important;
    border-radius: var(--radius) !important;
    box-shadow: var(--shadow);
}

.card-header {
    background: transparent !important;
    border-bottom: 1px solid var(--border) !important;
    padding: 1rem 1.25rem;
}

.card-header h5,
.card-header h6 {
    font-weight: 600;
    color: var(--isr-secondary);
    font-size: 0.9375rem;
}

.card-body {
    padding: 1.25rem;
}

.card-footer {
    background: transparent !important;
    border-top: 1px solid var(--border) !important;
}

/* Stat strip (melytics-style) */
.stat-strip {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-bottom: 1.75rem;
}

@media (min-width: 768px) {
    .stat-strip {
        grid-template-columns: repeat(4, 1fr);
    }
}

.stat-strip .stat-item {
    padding: 1.25rem 1.35rem;
    border-right: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

@media (min-width: 768px) {
    .stat-strip .stat-item {
        border-bottom: none;
    }

    .stat-strip .stat-item:last-child {
        border-right: none;
    }
}

@media (max-width: 767.98px) {
    .stat-strip .stat-item:nth-child(2n) {
        border-right: none;
    }

    .stat-strip .stat-item:nth-last-child(-n+2) {
        border-bottom: none;
    }
}

.stat-strip .stat-value {
    font-size: 1.75rem;
    font-weight: 650;
    letter-spacing: -0.03em;
    font-variant-numeric: tabular-nums;
    color: var(--isr-secondary);
    line-height: 1.1;
    margin-bottom: 0.2rem;
}

.stat-strip .stat-label {
    font-size: 0.8125rem;
    color: var(--ink-2);
    margin: 0;
}

/* Legacy stats-card (single cards) */
.stats-card .card-body {
    padding: 1.25rem 1.35rem;
}

.stats-card .stat-value,
.stats-card .card-title {
    font-size: 1.75rem;
    font-weight: 650;
    letter-spacing: -0.03em;
    font-variant-numeric: tabular-nums;
    color: var(--isr-secondary);
    margin-bottom: 0.2rem;
}

.stats-card .stat-label,
.stats-card .card-text {
    font-size: 0.8125rem;
    color: var(--ink-2);
    margin: 0;
}

/* Auth cards */
.auth-card {
    max-width: 420px;
    margin: 0 auto;
}

.auth-card .card-body {
    padding: 2rem 1.75rem;
}

.auth-card .auth-title {
    font-size: 1.375rem;
    font-weight: 650;
    color: var(--isr-secondary);
    letter-spacing: -0.02em;
}

/* Buttons */
.btn {
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.45rem 0.95rem;
}

.btn-primary {
    background-color: var(--isr-primary) !important;
    border-color: var(--isr-primary) !important;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--isr-primary-light) !important;
    border-color: var(--isr-primary-light) !important;
}

.btn-outline-primary {
    color: var(--isr-primary) !important;
    border-color: color-mix(in srgb, var(--isr-primary) 35%, transparent) !important;
}

.btn-outline-primary:hover {
    background-color: var(--accent-soft) !important;
    border-color: var(--isr-primary) !important;
    color: var(--isr-primary) !important;
}

.btn-info {
    background-color: var(--isr-accent) !important;
    border-color: var(--isr-accent) !important;
    color: var(--isr-secondary) !important;
}

.btn-info:hover {
    background-color: #7db8e0 !important;
    border-color: #7db8e0 !important;
    color: var(--isr-secondary) !important;
}

.btn-outline-info {
    color: var(--isr-primary) !important;
    border-color: color-mix(in srgb, var(--isr-accent) 60%, transparent) !important;
}

.btn-outline-info:hover {
    background-color: var(--accent-soft) !important;
    border-color: var(--isr-accent) !important;
    color: var(--isr-primary) !important;
}

.btn-success {
    background-color: var(--isr-success) !important;
    border-color: var(--isr-success) !important;
}

.btn-success:hover {
    background-color: #3a7234 !important;
    border-color: #3a7234 !important;
}

.btn-outline-success {
    color: var(--isr-success) !important;
    border-color: color-mix(in srgb, var(--isr-success) 40%, transparent) !important;
}

.btn-outline-success:hover {
    background-color: color-mix(in srgb, var(--isr-success) 12%, transparent) !important;
    border-color: var(--isr-success) !important;
    color: var(--isr-success) !important;
}

.btn-outline-secondary {
    color: var(--ink-2) !important;
    border-color: var(--border) !important;
}

.btn-outline-secondary:hover {
    background: var(--surface-nested) !important;
    color: var(--isr-secondary) !important;
    border-color: var(--border) !important;
}

.btn-group-sm .btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.8125rem;
}

/* Forms */
.form-control,
.form-select {
    border-radius: var(--radius-sm);
    border-color: var(--border);
    background: var(--surface);
    font-size: 0.9375rem;
    padding: 0.5rem 0.75rem;
}

.form-control:focus,
.form-select:focus {
    border-color: color-mix(in srgb, var(--isr-primary) 45%, transparent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.form-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--ink-2);
    margin-bottom: 0.35rem;
}

/* Tables */
.table {
    --bs-table-bg: transparent;
    margin-bottom: 0;
}

.table > :not(caption) > * > * {
    border-bottom-color: var(--border);
    padding: 0.75rem 1rem;
    vertical-align: middle;
}

.table thead th,
.table-light th {
    background: var(--surface-nested) !important;
    color: var(--ink-2) !important;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-bottom: 1px solid var(--border) !important;
}

.table-hover > tbody > tr:hover > * {
    background: color-mix(in srgb, var(--isr-primary) 4%, var(--surface)) !important;
}

.table-dark,
.table-dark th {
    background-color: var(--surface-nested) !important;
    color: var(--isr-secondary) !important;
    border-color: var(--border) !important;
}

/* Badges */
.badge {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    padding: 0.35em 0.6em;
    border-radius: 6px;
}

.badge.bg-primary {
    background-color: var(--isr-primary) !important;
}

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

.badge.bg-warning {
    background-color: #ffc107 !important;
    color: #212529 !important;
}

.badge.bg-danger {
    background-color: #dc3545 !important;
}

/* Alerts */
.alert {
    border: none;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
}

.alert-info {
    background: color-mix(in srgb, var(--isr-accent) 25%, var(--surface)) !important;
    color: var(--isr-secondary) !important;
}

/* Breadcrumbs */
.breadcrumb {
    font-size: 0.8125rem;
    margin-bottom: 0.5rem;
}

.breadcrumb-item a {
    color: var(--ink-2);
    text-decoration: none;
}

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

.breadcrumb-item.active {
    color: var(--ink-3);
}

/* Dropdowns */
.dropdown-menu {
    border: none;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    padding: 0.35rem;
}

.dropdown-item {
    border-radius: 8px;
    font-size: 0.875rem;
    padding: 0.45rem 0.75rem;
    color: var(--ink);
}

.dropdown-item:hover,
.dropdown-item:focus {
    background: var(--accent-soft);
    color: var(--isr-primary);
}

.dropdown-divider {
    border-color: var(--border);
    margin: 0.35rem 0;
}

.dropdown-header {
    font-size: 0.6875rem;
    font-weight: 650;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ink-3);
    padding: 0.25rem 0.75rem 0.15rem;
}

/* List groups inside cards */
.list-group-item {
    border-color: var(--border);
    background: transparent;
    padding: 0.85rem 0;
}

.list-group-flush > .list-group-item {
    border-left: 0;
    border-right: 0;
}

.list-group-item-action:hover,
.list-group-item-action:focus {
    background: color-mix(in srgb, var(--isr-primary) 4%, var(--surface));
    color: var(--ink);
}

/* Page header row */
.page-header {
    margin-bottom: 1.5rem;
}

.page-header .page-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

/* Filter panel */
.filter-panel .card-body {
    padding: 1.15rem 1.25rem 1.25rem;
}

/* Welcome hero (dashboard) */
.dashboard-hero {
    margin-bottom: 1.75rem;
}

.dashboard-hero h1 {
    font-size: 1.75rem;
    font-weight: 650;
    letter-spacing: -0.03em;
    color: var(--isr-secondary);
    margin-bottom: 0.35rem;
}

.dashboard-hero .lead {
    font-size: 1rem;
    color: var(--ink-2);
    max-width: 36rem;
}

/* Empty states */
.empty-state {
    text-align: center;
    padding: 2.5rem 1rem;
    color: var(--ink-3);
}

.empty-state i {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    opacity: 0.5;
}

/* Container spacing inside page-wrap */
.page-wrap > .container,
.page-wrap > .container-fluid {
    padding-left: 0;
    padding-right: 0;
    max-width: 100%;
}

.page-wrap .container.mt-4,
.page-wrap .container.mt-5 {
    margin-top: 0 !important;
}

/* Neutralize legacy colored card headers */
.card-header.bg-primary,
.card-header.bg-secondary,
.card-header.bg-info,
.card-header.bg-danger,
.card-header.bg-warning,
.card-header.bg-success {
    background: transparent !important;
    color: var(--isr-secondary) !important;
    border-bottom: 1px solid var(--border) !important;
}

.card-header.text-white,
.card-header.bg-primary.text-white,
.card-header.bg-secondary.text-white,
.card-header.bg-info.text-white,
.card-header.bg-danger.text-white {
    color: var(--isr-secondary) !important;
}

/* Settings nav pills */
.list-group-item-action.active {
    background: var(--accent-soft) !important;
    color: var(--isr-primary) !important;
    border-color: transparent !important;
}

.settings-nav .list-group-item {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
}

/* User list table */
.user-list-search {
    min-width: 12rem;
    max-width: 16rem;
    flex: 1 1 12rem;
}

.user-list-card .card-header .user-list-search .form-control {
    margin-bottom: 0;
}

.card-body .fixed-table-pagination .pagination-detail {
    padding-left: 1.25rem;
}

/* Featured dataset cards */
.card.border-primary {
    border: none !important;
    box-shadow: var(--shadow);
}

.card.border-primary .card-header {
    background: var(--accent-soft) !important;
    color: var(--isr-secondary) !important;
}