:root {
    --navy: #1B2A4A;
    --navy-light: #243556;
    --navy-dark: #131E36;
    --blue-accent: #2E5BFF;
    --blue-hover: #1A45E0;
    --blue-light: #E8EDFB;
    --white: #FFFFFF;
    --gray-bg: #F4F6F9;
    --gray-border: #E2E8F0;
    --text-primary: #2D3748;
    --text-muted: #718096;
    --sidebar-width: 250px;
    --sidebar-collapsed-width: 62px;
    --topbar-height: 56px;
    --transition-speed: 0.25s;
    --font-sans: "Plus Jakarta Sans", "Inter", "Roboto", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
    height: 100%;
    margin: 0;
    font-family: var(--font-sans);
    color: var(--text-primary);
    background: var(--gray-bg);
}
.main-content h1,
.main-content h2,
.main-content h3,
.main-content h4,
.crud-title {
    font-family: var(--font-sans);
    letter-spacing: -.01em;
}

/* ── TOP BAR ────────────────────────────────────────────── */
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--topbar-height);
    background: var(--white);
    border-bottom: 1px solid var(--gray-border);
    box-shadow: 0 1px 3px rgba(0,0,0,.06);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1rem;
    z-index: 1040;
}

.topbar-brand {
    display: flex;
    align-items: center;
    gap: .65rem;
    text-decoration: none;
    color: var(--navy);
    font-weight: 700;
    font-size: 1.05rem;
}

.topbar-brand img {
    height: 32px;
    width: auto;
}

.topbar-toggle {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--navy);
    cursor: pointer;
    padding: .25rem .5rem;
    border-radius: 6px;
    transition: background var(--transition-speed);
}
.topbar-toggle:hover { background: var(--blue-light); }

.topbar-right {
    display: flex;
    align-items: center;
    gap: .75rem;
}
.density-menu .dropdown-item.active {
    background: var(--blue-light);
    color: var(--blue-accent);
    font-weight: 600;
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: .5rem;
    color: var(--text-primary);
    text-decoration: none;
    font-size: .875rem;
    padding: .35rem .6rem;
    border-radius: 6px;
    transition: background var(--transition-speed);
}
.topbar-user:hover { background: var(--blue-light); color: var(--navy); }

.topbar-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--blue-accent);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .75rem;
    font-weight: 700;
}

/* ── SIDEBAR ────────────────────────────────────────────── */
.sidebar {
    position: fixed;
    top: var(--topbar-height);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--navy);
    color: rgba(255,255,255,.85);
    overflow-x: hidden;
    overflow-y: auto;
    transition: transform var(--transition-speed) ease;
    z-index: 1030;
    padding-top: .5rem;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,.15); border-radius: 4px; }

/* ── Sidebar search ── */
.sidebar-search {
    padding: .5rem .7rem .25rem;
}
.sidebar-search-inner {
    position: relative;
}
.sidebar-search-inner input[type="text"] {
    display: block;
    width: 100%;
    height: 34px;
    padding: 0 28px 0 30px;
    margin: 0;
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 8px;
    background: rgba(255,255,255,.06);
    color: rgba(255,255,255,.9);
    font-size: .75rem;
    font-weight: 500;
    box-sizing: border-box;
    transition: border-color .2s, background .2s, box-shadow .2s;
}
.sidebar-search-inner input[type="text"]::placeholder {
    color: rgba(255,255,255,.3);
    font-weight: 400;
}
.sidebar-search-inner input[type="text"]:focus {
    outline: none;
    border-color: rgba(46,91,255,.55);
    background: rgba(255,255,255,.1);
    box-shadow: 0 0 0 3px rgba(46,91,255,.12);
}
.sidebar-search-icon {
    position: absolute;
    left: 9px;
    top: 50%;
    transform: translateY(-50%);
    font-size: .72rem;
    color: rgba(255,255,255,.3);
    pointer-events: none;
    transition: color .2s;
}
.sidebar-search-inner input[type="text"]:focus ~ .sidebar-search-icon {
    color: rgba(100,140,255,.8);
}
.sidebar-search-clear {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: rgba(255,255,255,.1);
    color: rgba(255,255,255,.45);
    font-size: .58rem;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    line-height: 1;
    transition: background .15s, color .15s;
}
.sidebar-search-clear:hover {
    background: rgba(255,255,255,.2);
    color: #fff;
}
.sidebar-search-inner.has-value .sidebar-search-clear {
    display: flex;
}
.sidebar-search-sep {
    margin: .4rem auto 0;
    width: 70%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,.08), transparent);
}
.sidebar-group.search-hidden,
.sidebar-link.search-hidden {
    display: none !important;
}
.sidebar-link mark {
    background: rgba(46,91,255,.4);
    color: #fff;
    border-radius: 3px;
    padding: 0 2px;
    font-weight: 700;
}
.sidebar-no-results {
    padding: .5rem .75rem;
    font-size: .72rem;
    color: rgba(255,255,255,.3);
    text-align: center;
    display: none;
}
.sidebar-no-results.visible {
    display: block;
}
.sidebar-group { margin-bottom: .25rem; }

.sidebar-group-header {
    display: flex;
    align-items: center;
    gap: .6rem;
    padding: .55rem 1rem;
    font-size: .75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: rgba(255,255,255,.5);
    cursor: pointer;
    user-select: none;
    transition: color var(--transition-speed);
    white-space: nowrap;
}
.sidebar-group-header:hover { color: rgba(255,255,255,.85); }

.sidebar-group-header .bi {
    font-size: 1rem;
    min-width: 20px;
    text-align: center;
}

.sidebar-group-header .chevron {
    margin-left: auto;
    transition: transform var(--transition-speed);
    font-size: .65rem;
}
.sidebar-group.open .sidebar-group-header .chevron {
    transform: rotate(90deg);
}

.sidebar-group-items {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}
.sidebar-group.open .sidebar-group-items {
    max-height: 500px;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: .55rem;
    padding: .45rem 1rem .45rem 2.6rem;
    font-size: .835rem;
    color: rgba(255,255,255,.72);
    text-decoration: none;
    transition: background var(--transition-speed), color var(--transition-speed);
    white-space: nowrap;
    border-left: 3px solid transparent;
}
.sidebar-link:hover {
    background: var(--navy-light);
    color: var(--white);
}
.sidebar-link.active {
    background: rgba(46,91,255,.18);
    color: var(--white);
    border-left-color: var(--blue-accent);
}

/* ── SIDEBAR COLLAPSED ──────────────────────────────────── */
body.sidebar-collapsed .sidebar {
    transform: translateX(-100%);
}
body.sidebar-collapsed .main-content {
    margin-left: 0;
}

/* ── MAIN CONTENT ───────────────────────────────────────── */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--topbar-height);
    padding: 1.5rem 1.75rem;
    min-height: calc(100vh - var(--topbar-height));
    transition: margin-left var(--transition-speed) ease;
    background: var(--gray-bg);
}

/* ── CARDS & TABLES override ────────────────────────────── */
.card {
    border: none;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.card-header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-border);
    font-weight: 600;
    font-size: .9rem;
}
.table {
    font-size: .85rem;
}
.table thead th {
    background: var(--gray-bg);
    border-bottom: 2px solid var(--gray-border);
    font-weight: 600;
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .03em;
    color: var(--text-muted);
}
.table tbody td {
    vertical-align: middle;
}
.table tbody tr:hover {
    background: #F7FAFF;
}

/* ── BUTTONS ────────────────────────────────────────────── */
.btn-primary {
    background: var(--blue-accent);
    border-color: var(--blue-accent);
}
.btn-primary:hover {
    background: var(--blue-hover);
    border-color: var(--blue-hover);
}
.btn-outline-primary {
    color: var(--blue-accent);
    border-color: var(--blue-accent);
}
.btn-outline-primary:hover {
    background: var(--blue-accent);
    border-color: var(--blue-accent);
    color: var(--white);
}
.btn {
    font-weight: 500;
}
.btn-sm {
    border-radius: 8px;
}

/* ── ALERTS ─────────────────────────────────────────────── */
.alert {
    border-radius: 8px;
    font-size: .875rem;
}

/* ── APP BREADCRUMB ───────────────────────────────────── */
.app-breadcrumb {
    background: transparent;
    padding: 0;
}
.app-breadcrumb .breadcrumb {
    background: transparent;
    border: 1px solid #E9EEF6;
    border-radius: 999px;
    padding: .25rem .65rem;
    display: inline-flex;
    align-items: center;
    gap: .2rem;
}
.app-breadcrumb .breadcrumb-item {
    font-size: .74rem;
    color: #64748B;
    letter-spacing: .01em;
}
.app-breadcrumb .breadcrumb-item + .breadcrumb-item::before {
    color: #94A3B8;
    font-size: .7rem;
}
.app-breadcrumb .breadcrumb-item a {
    color: #64748B;
    text-decoration: none;
}
.app-breadcrumb .breadcrumb-item a:hover {
    color: var(--blue-accent);
}
.app-breadcrumb .breadcrumb-item.active {
    color: var(--navy);
    font-weight: 600;
}

/* ── NAV TABS (keep consistent in detail pages) ─────────── */
.nav-tabs .nav-link {
    color: var(--text-muted);
    font-weight: 500;
}
.nav-tabs .nav-link.active {
    color: var(--blue-accent);
    border-color: var(--gray-border) var(--gray-border) var(--white);
}

/* ── DASHBOARD STAT CARDS ───────────────────────────────── */
.stat-card {
    border-radius: 10px;
    padding: 1.25rem;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 1rem;
}
.stat-card .stat-icon {
    font-size: 2rem;
    opacity: .75;
}
.stat-card .stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1;
}
.stat-card .stat-label {
    font-size: .8rem;
    opacity: .85;
}

/* ── LOGIN PAGE ─────────────────────────────────────────── */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
}
.login-card {
    width: 100%;
    max-width: 400px;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,.25);
}
.login-card .card-body { padding: 2.5rem 2rem; }
.login-card .login-logo {
    display: block;
    margin: 0 auto 1.25rem;
    height: 60px;
}

/* ── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width);
    }
    body.sidebar-mobile-open .sidebar {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
    }
    body.sidebar-mobile-open::after {
        content: '';
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,.35);
        z-index: 1025;
    }
}

/* ── GENERIC CRUD LAYOUT ─────────────────────────────── */
.crud-shell {
    max-width: 1220px;
}

.main-content > .crud-shell,
.main-content > .form-shell,
.main-content > .enroll-shell,
.main-content > .detail-shell,
.main-content > .pd-shell,
.main-content > .pf-shell,
.main-content > .pl-shell,
.main-content > .cd-shell,
.main-content > .al-shell,
.main-content > .ad-shell,
.main-content > .af-shell,
.main-content > .ocr-shell {
    width: 100%;
    margin-inline: auto;
}

.crud-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: .75rem;
    margin-bottom: 1rem;
}

.crud-title {
    margin: 0;
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--navy);
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: .35rem;
}
.crud-title::after {
    content: "";
    display: inline-block;
    width: 28px;
    height: 3px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--blue-accent), #7c9cff);
}

.crud-subtitle {
    margin: .15rem 0 0;
    font-size: .82rem;
    color: var(--text-muted);
}

.crud-card {
    border: 1px solid var(--gray-border);
    border-radius: 12px;
    background: var(--white);
    box-shadow: 0 8px 22px rgba(15, 23, 42, .06);
}

.crud-card + .crud-card {
    margin-top: .9rem;
}

.crud-head {
    padding: .75rem 1rem;
    border-bottom: 1px solid var(--gray-border);
    font-size: .8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--text-muted);
    background: linear-gradient(90deg, #eef4ff, #ffffff);
    position: relative;
}
.crud-head::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--blue-accent), #87a2ff);
}

.crud-body {
    padding: 1rem;
}

.crud-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .82rem;
}

.crud-table thead th {
    background: #F8FAFC;
    border-bottom: 2px solid var(--gray-border);
    padding: .65rem .75rem;
    font-size: .7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--text-muted);
    white-space: nowrap;
}

.crud-table tbody td {
    padding: .62rem .75rem;
    border-bottom: 1px solid #F1F5F9;
    white-space: nowrap;
}

.crud-table tbody tr:hover {
    background: #F5F8FF;
}

.crud-link {
    text-decoration: none;
    color: var(--navy);
    font-weight: 600;
}

.crud-link:hover {
    color: var(--blue-accent);
}

.crud-kv {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: .75rem 1rem;
}

.crud-k {
    font-size: .7rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: #94A3B8;
}

.crud-v {
    font-size: .84rem;
    color: var(--text-primary);
    font-weight: 500;
}

.crud-v.muted {
    color: #CBD5E1;
    font-weight: 400;
}

.crud-actions {
    display: flex;
    justify-content: flex-end;
    gap: .5rem;
}

.form-control:focus,
.form-select:focus,
.choices.is-focused .choices__inner {
    border-color: #7ea2ff !important;
    box-shadow: 0 0 0 .2rem rgba(46, 91, 255, .12) !important;
}
.choices.is-open .choices__list--dropdown,
.choices.is-open .choices__list[aria-expanded] {
    z-index: 100;
}

/* ── FORM TYPOGRAPHY (labels vs helptext) ───────────────── */
form .form-label {
    font-size: .75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: #2f425f;
    margin-bottom: .34rem;
    display: inline-flex;
    align-items: center;
    gap: .32rem;
    line-height: 1.2;
}
form .form-label .af-label-icon {
    font-size: .72rem;
    color: #3f5f92;
    opacity: .95;
    transform: translateY(-1px);
}
form .asteriskField {
    color: #dc2626;
    margin-left: .15rem;
}
form .form-text,
form .helptext {
    font-size: .76rem;
    font-weight: 500;
    color: #94a3b8;
    margin-top: .32rem;
}
form .form-control::placeholder,
form .form-select:invalid,
form .choices__placeholder {
    color: #b5c0ce !important;
    opacity: 1;
}

/* ── DENSITY MODES ─────────────────────────────────────── */
body.density-comfort .main-content {
    padding: 1.75rem 2rem;
}
body.density-comfort .crud-body {
    padding: 1.15rem;
}
body.density-comfort .crud-table thead th {
    padding: .72rem .85rem;
}
body.density-comfort .crud-table tbody td {
    padding: .72rem .85rem;
}
body.density-comfort .btn-sm {
    padding: .35rem .7rem;
}
body.density-comfort .app-breadcrumb .breadcrumb {
    padding: .32rem .75rem;
}

body.density-dense .main-content {
    padding: 1rem 1.15rem;
}
body.density-dense .crud-header {
    margin-bottom: .65rem;
}
body.density-dense .crud-title {
    font-size: 1.18rem;
}
body.density-dense .crud-subtitle {
    font-size: .76rem;
}
body.density-dense .crud-head {
    padding: .55rem .8rem;
    font-size: .72rem;
}
body.density-dense .crud-body {
    padding: .72rem .8rem;
}
body.density-dense .crud-table {
    font-size: .77rem;
}
body.density-dense .crud-table thead th {
    padding: .45rem .55rem;
    font-size: .64rem;
}
body.density-dense .crud-table tbody td {
    padding: .44rem .55rem;
}
body.density-dense .table {
    font-size: .78rem;
}
body.density-dense .table thead th {
    font-size: .68rem;
    padding-top: .45rem;
    padding-bottom: .45rem;
}
body.density-dense .btn-sm {
    padding: .2rem .5rem;
    font-size: .74rem;
}
body.density-dense .app-breadcrumb .breadcrumb {
    padding: .17rem .52rem;
}

/* ── MICRO POLISH (GLOBAL) ─────────────────────────────── */
.crud-card,
[class*="-card"] {
    transition: box-shadow .2s ease, transform .2s ease;
}
.crud-card:hover {
    box-shadow: 0 12px 28px rgba(15, 23, 42, .1);
}
.badge {
    letter-spacing: .01em;
}

/* ── MOBILE OPTIMIZATION (GLOBAL) ──────────────────────── */
@media (max-width: 991.98px) {
    .main-content {
        padding: 1rem .9rem;
    }
    .app-breadcrumb .breadcrumb {
        max-width: 100%;
        overflow-x: auto;
        white-space: nowrap;
        display: flex;
        scrollbar-width: thin;
    }
    .crud-header {
        align-items: flex-start;
        gap: .6rem;
    }
    .crud-title {
        font-size: 1.15rem;
    }
    .crud-title::after {
        width: 20px;
        height: 2px;
    }
    .crud-subtitle {
        font-size: .76rem;
    }
    .crud-head {
        padding: .62rem .8rem;
        font-size: .72rem;
    }
    .crud-body {
        padding: .8rem;
    }
    .crud-kv {
        grid-template-columns: 1fr;
        gap: .6rem;
    }
    .crud-actions {
        width: 100%;
    }
    .crud-actions .btn {
        flex: 1;
    }
    .topbar {
        padding: 0 .65rem;
    }
}

@media (max-width: 767.98px) {
    .topbar-right {
        gap: .4rem;
    }
    .topbar-avatar {
        width: 28px;
        height: 28px;
        font-size: .7rem;
    }
    .btn-sm {
        min-height: 34px;
    }
    .nav-tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
        overflow-y: hidden;
        scrollbar-width: thin;
        -webkit-overflow-scrolling: touch;
    }
    .nav-tabs .nav-link {
        white-space: nowrap;
        font-size: .8rem;
        padding: .5rem .72rem;
    }
    .table-responsive,
    .crud-card .table-responsive {
        border-radius: 10px;
    }
    .crud-table {
        font-size: .77rem;
    }
    .crud-table thead th,
    .crud-table tbody td {
        padding: .5rem .52rem;
    }
    [class*="view-toggle"] {
        width: 100%;
        justify-content: flex-start;
    }
}

@media (max-width: 575.98px) {
    .main-content {
        padding: .8rem .62rem;
    }
    [class*="card-grid"] {
        grid-template-columns: 1fr !important;
        gap: .65rem !important;
    }
    .crud-header .btn,
    .crud-header .btn-sm {
        width: 100%;
    }
    .crud-actions {
        flex-direction: column-reverse;
    }
    .crud-actions .btn {
        width: 100%;
    }
    .form-control,
    .form-select,
    .choices__inner {
        font-size: .88rem;
    }
    form .form-label {
        font-size: .72rem;
    }
}