/* ============================================================
   HIT Alumni Admin Panel — Professional UI
   ============================================================ */

:root {
    --admin-sidebar-width: 260px;
    --admin-sidebar-bg: #0a1744;
    --admin-sidebar-bg-hover: rgba(255, 255, 255, 0.08);
    --admin-sidebar-active: rgba(255, 221, 0, 0.15);
    --admin-sidebar-accent: #ffdd00;
    --admin-sidebar-text: rgba(255, 255, 255, 0.65);
    --admin-sidebar-text-active: #ffffff;
    --admin-header-height: 64px;
    --admin-bg: #f0f2f8;
    --admin-card-bg: #ffffff;
    --admin-border: #e8ecf4;
    --admin-text: #1a2332;
    --admin-text-muted: #6b7280;
    --admin-primary: #0b1e5a;
    --admin-primary-light: #1a3a8f;
    --admin-shadow-sm: 0 1px 3px rgba(11, 30, 90, 0.06);
    --admin-shadow: 0 4px 20px rgba(11, 30, 90, 0.08);
    --admin-shadow-lg: 0 8px 32px rgba(11, 30, 90, 0.12);
    --admin-radius: 12px;
    --admin-radius-sm: 8px;
    --admin-transition: 0.2s ease;
}

/* ---- Base ---- */
body.admin-panel {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--admin-bg);
    color: var(--admin-text);
    -webkit-font-smoothing: antialiased;
}

/* ---- Sidebar ---- */
.hsr-left-sidebar {
    width: var(--admin-sidebar-width);
    background: linear-gradient(180deg, var(--admin-sidebar-bg) 0%, #0b1e5a 100%);
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    transition: width var(--admin-transition);
    display: flex;
    flex-direction: column;
    border-right: 1px solid rgba(255, 255, 255, 0.06);
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

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

.hsr-left-sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
}

.admin-sidebar-brand {
    padding: 1rem 0.85rem 0.85rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
}

.admin-sidebar-brand a {
    display: block;
    width: 100%;
    line-height: 0;
}

.admin-sidebar-brand img {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
    max-height: none;
    object-fit: contain;
    margin: 0 auto;
}

.admin-sidebar-brand .admin-brand-text {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-top: 0.5rem;
}

.admin-sidebar-nav {
    flex: 1;
    padding: 0.75rem 0.75rem 1.5rem;
}

/* Accordion overrides */
.admin-sidebar-nav .accordion-item {
    background: transparent;
    border: none;
    margin-bottom: 2px;
}

.admin-sidebar-nav .accordion-button {
    border: none !important;
    padding: 0.65rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--admin-transition);
    box-shadow: none !important;
    background-color: transparent !important;
    border-radius: var(--admin-radius-sm) !important;
    color: var(--admin-sidebar-text);
    gap: 0.25rem;
}

.admin-sidebar-nav .accordion-button i {
    font-size: 1rem;
    width: 1.25rem;
    text-align: center;
    opacity: 0.85;
}

.admin-sidebar-nav .accordion-button:not(.collapsed) {
    background-color: var(--admin-sidebar-active) !important;
    color: var(--admin-sidebar-accent) !important;
}

.admin-sidebar-nav .accordion-button:hover {
    background-color: var(--admin-sidebar-bg-hover) !important;
    color: var(--admin-sidebar-text-active);
}

.admin-sidebar-nav .accordion-button.active-parent {
    background-color: var(--admin-sidebar-active) !important;
    color: var(--admin-sidebar-accent) !important;
    font-weight: 600;
}

.admin-sidebar-nav .accordion-button.active-parent:not(.collapsed) {
    background-color: var(--admin-sidebar-active) !important;
    color: var(--admin-sidebar-accent) !important;
}

.admin-sidebar-nav .accordion-button:focus {
    box-shadow: none !important;
}

.admin-sidebar-nav .accordion-button::after {
    background-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23ffffff80'><path fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/></svg>") !important;
    background-size: 10px;
    width: 12px;
    height: 12px;
    opacity: 0.6;
}

.admin-sidebar-nav .accordion-body {
    background: transparent;
    padding: 0.25rem 0 0.5rem 0.5rem !important;
}

.admin-sidebar-nav .accordion-body ul {
    margin: 0;
    padding-left: 0.75rem;
    border-left: 2px solid rgba(255, 255, 255, 0.1);
}

.admin-sidebar-nav ul.active-submenu {
    border-left-color: var(--admin-sidebar-accent);
    background: rgba(255, 221, 0, 0.05);
    border-radius: 0 var(--admin-radius-sm) var(--admin-radius-sm) 0;
    padding: 0.25rem 0 0.25rem 0.75rem;
}

.admin-sidebar-nav .accordion-body a {
    color: var(--admin-sidebar-text);
    padding: 0.45rem 0.75rem;
    display: flex;
    align-items: center;
    font-size: 0.8125rem;
    font-weight: 400;
    border-radius: var(--admin-radius-sm);
    transition: all var(--admin-transition);
    text-decoration: none;
}

.admin-sidebar-nav .accordion-body a:hover {
    color: var(--admin-sidebar-text-active);
    background: var(--admin-sidebar-bg-hover);
}

.admin-sidebar-nav .accordion-body a.active,
.admin-sidebar-nav ul.active-submenu li a.active {
    color: var(--admin-sidebar-accent) !important;
    font-weight: 600;
    background: rgba(255, 221, 0, 0.12);
}

/* ---- Main area ---- */
.hsr-main-area {
    width: calc(100% - var(--admin-sidebar-width));
    background-color: var(--admin-bg);
    height: 100vh;
    overflow: auto;
    transition: width var(--admin-transition);
}

#hsr-menu-toggle:checked ~ .d-flex .hsr-left-sidebar {
    width: 0;
    border: none;
}

#hsr-menu-toggle:checked ~ .d-flex .hsr-main-area {
    width: 100%;
}

@media (max-width: 991px) {
    .hsr-left-sidebar {
        width: 0;
    }

    .hsr-main-area {
        width: 100%;
    }
}

/* ---- Header ---- */
.admin-header {
    background: var(--admin-card-bg);
    border-bottom: 1px solid var(--admin-border);
    height: var(--admin-header-height);
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--admin-shadow-sm);
}

.admin-header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

#hsr-toggle-label,
.admin-toggle-btn {
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--admin-radius-sm);
    background: var(--admin-bg);
    color: var(--admin-primary);
    font-size: 1.25rem;
    transition: all var(--admin-transition);
    border: 1px solid var(--admin-border);
}

#hsr-toggle-label:hover,
.admin-toggle-btn:hover {
    background: var(--admin-primary);
    color: #fff;
    border-color: var(--admin-primary);
}

.admin-header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.admin-user-chip {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.35rem 0.75rem 0.35rem 0.35rem;
    border-radius: 50px;
    background: var(--admin-bg);
    border: 1px solid var(--admin-border);
    cursor: pointer;
    transition: all var(--admin-transition);
}

.admin-user-chip:hover,
.admin-user-chip:focus,
.admin-user-chip.show {
    background: #fff;
    border-color: var(--admin-primary-light);
    box-shadow: var(--admin-shadow-sm);
    color: inherit;
}

.admin-user-chevron {
    font-size: 0.75rem;
    color: var(--admin-text-muted);
    margin-left: 0.15rem;
}

.admin-user-chip.dropdown-toggle::after {
    margin-left: 0.25rem;
    font-size: 0.65rem;
    color: var(--admin-text-muted);
    border-top-color: var(--admin-text-muted);
}

.admin-profile-menu {
    min-width: 200px;
    padding: 0.5rem;
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius-sm);
    box-shadow: var(--admin-shadow);
    margin-top: 0.5rem !important;
}

.admin-profile-menu .dropdown-item {
    font-size: 0.875rem;
    padding: 0.55rem 0.85rem;
    border-radius: 6px;
    color: var(--admin-text);
    display: flex;
    align-items: center;
}

.admin-profile-menu .dropdown-item:hover,
.admin-profile-menu .dropdown-item:focus {
    background: var(--admin-bg);
    color: var(--admin-primary);
}

.admin-profile-menu .dropdown-item.text-danger:hover,
.admin-profile-menu .dropdown-item.text-danger:focus {
    background: #fef2f2;
    color: #dc2626 !important;
}

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

.admin-profile-menu .dropdown-header {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--admin-text);
    padding: 0.35rem 0.85rem 0.5rem;
}

.admin-user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--admin-primary) 0%, var(--admin-primary-light) 100%);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.admin-user-info {
    line-height: 1.2;
}

.admin-user-info .admin-user-name {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--admin-text);
}

.admin-user-info .admin-user-role {
    font-size: 0.6875rem;
    color: var(--admin-text-muted);
    text-transform: capitalize;
}

/* ---- Content area ---- */
.admin-content {
    padding: 1.5rem;
    max-width: 1400px;
}

/* ---- Page header (auto-style existing pages) ---- */
.admin-page-header {
    margin-bottom: 1.5rem;
}

.admin-content > .mb-4:first-child,
.admin-page-header {
    margin-bottom: 1.5rem;
}

.admin-content > .mb-4:first-child h3,
.admin-page-header h3,
.admin-page-header .admin-page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--admin-text);
    margin-bottom: 0.35rem;
    letter-spacing: -0.02em;
}

.admin-content > .mb-4:first-child .breadcrumb,
.admin-page-header .breadcrumb {
    margin-bottom: 0;
    font-size: 0.8125rem;
}

.admin-content > .mb-4:first-child .breadcrumb-item a,
.admin-page-header .breadcrumb-item a {
    color: var(--admin-text-muted);
    text-decoration: none;
    transition: color var(--admin-transition);
}

.admin-content > .mb-4:first-child .breadcrumb-item a:hover,
.admin-page-header .breadcrumb-item a:hover {
    color: var(--admin-primary);
}

.admin-content > .mb-4:first-child .breadcrumb-item.active,
.admin-page-header .breadcrumb-item.active {
    color: var(--admin-text-muted);
}

/* ---- Stat cards (dashboard) ---- */
.admin-stat-card {
    background: var(--admin-card-bg);
    border-radius: var(--admin-radius);
    padding: 1.25rem 1.5rem;
    border: 1px solid var(--admin-border);
    box-shadow: var(--admin-shadow-sm);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform var(--admin-transition), box-shadow var(--admin-transition);
    height: 100%;
}

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

.admin-stat-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--admin-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
}

.admin-stat-icon.icon-primary {
    background: rgba(11, 30, 90, 0.1);
    color: var(--admin-primary);
}

.admin-stat-icon.icon-success {
    background: rgba(16, 185, 129, 0.12);
    color: #059669;
}

.admin-stat-icon.icon-warning {
    background: rgba(245, 158, 11, 0.12);
    color: #d97706;
}

.admin-stat-icon.icon-danger {
    background: rgba(239, 68, 68, 0.12);
    color: #dc2626;
}

.admin-stat-body .admin-stat-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--admin-text-muted);
    margin-bottom: 0.15rem;
}

.admin-stat-body .admin-stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--admin-text);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

/* ---- Cards ---- */
.admin-panel .card {
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    box-shadow: var(--admin-shadow-sm);
    overflow: hidden;
}

.admin-panel .card-header {
    background: var(--admin-card-bg);
    border-bottom: 1px solid var(--admin-border);
    padding: 1rem 1.25rem;
}

.admin-panel .card-header h5,
.admin-panel .card-header .card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--admin-text);
    margin: 0;
}

.admin-panel .card-body {
    padding: 1.25rem;
}

/* ---- Tables ---- */
.admin-panel .table-responsive,
.admin-panel .admin-table-scroll,
.admin-panel .admin-card-table-body,
.admin-panel .dt-container .dt-layout-table {
    overflow-x: auto;
    overflow-y: visible;
    -webkit-overflow-scrolling: touch;
    max-width: 100%;
}

.admin-panel .table-responsive > .table,
.admin-panel .admin-table-scroll > .table,
.admin-panel .admin-card-table-body > .table,
.admin-panel .dt-container .dt-layout-table .table {
    min-width: max-content;
    width: 100%;
}

.admin-panel .table {
    font-size: 0.875rem;
    margin-bottom: 0;
}

.admin-panel .table thead th {
    background: var(--admin-bg);
    color: var(--admin-text-muted);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-bottom: 1px solid var(--admin-border);
    padding: 0.75rem 1rem;
    white-space: nowrap;
    vertical-align: middle;
}

.admin-panel .table tbody td {
    padding: 0.85rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--admin-border);
    color: var(--admin-text);
    white-space: nowrap;
}

.admin-panel .table tbody td.admin-table-wrap-cell {
    white-space: normal;
    min-width: 12rem;
    max-width: 24rem;
}

.admin-panel .table thead th.admin-table-sticky-col,
.admin-panel .table tbody td.admin-table-sticky-col {
    position: sticky;
    right: 0;
    z-index: 3;
    background: var(--admin-card-bg);
    box-shadow: -8px 0 16px rgba(11, 30, 90, 0.08);
    min-width: 6.5rem;
}

.admin-panel .table thead th.admin-table-sticky-col {
    z-index: 4;
    background: var(--admin-bg);
}

.admin-panel .table-striped > tbody > tr:nth-of-type(odd) > td.admin-table-sticky-col {
    background: rgba(240, 242, 248, 0.98);
}

.admin-panel .table tbody tr:hover td.admin-table-sticky-col {
    background: #f4f6fb;
}

.admin-panel .table tbody tr:last-child td {
    border-bottom: none;
}

.admin-panel .table tbody tr:hover {
    background: rgba(11, 30, 90, 0.02);
}

.admin-panel .table-striped > tbody > tr:nth-of-type(odd) > * {
    background: rgba(240, 242, 248, 0.5);
}

/* DataTables styling */
.admin-panel .dt-container {
    width: 100%;
}

.admin-panel .card .dt-container,
.admin-panel .admin-card-table-body .dt-container {
    padding: 0.25rem 0 0;
}

.admin-panel .dt-container .dt-layout-row:not(.dt-layout-table) {
    margin: 0.85rem 0;
    gap: 1rem;
    flex-wrap: nowrap;
    align-items: center;
}

.admin-panel .dt-container .dt-length,
.admin-panel .dt-container .dt-search {
    display: inline-flex;
    align-items: center;
    flex-wrap: nowrap;
    gap: 0.5rem;
    white-space: nowrap;
}

.admin-panel .dt-container .dt-length label,
.admin-panel .dt-container .dt-search label {
    display: inline;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--admin-text-muted);
    margin: 0;
    white-space: nowrap;
}

.admin-panel .dt-container .dt-layout-row.dt-layout-table {
    margin: 0;
}

.admin-panel .dt-container .dt-search input,
.admin-panel .dt-container .dt-length select,
.admin-panel .dt-container .dt-input {
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius-sm);
    padding: 0.45rem 0.75rem;
    font-size: 0.875rem;
    background: #fff;
    color: var(--admin-text);
    min-height: 36px;
    margin: 0 !important;
    width: auto;
    flex: 0 0 auto;
}

.admin-panel .dt-container .dt-search input:focus,
.admin-panel .dt-container .dt-length select:focus,
.admin-panel .dt-container .dt-input:focus {
    outline: none;
    border-color: var(--admin-primary-light);
    box-shadow: 0 0 0 3px rgba(11, 30, 90, 0.1);
}

.admin-panel .dt-container .dt-info {
    font-size: 0.8125rem;
    color: var(--admin-text-muted);
    padding: 0.35rem 0;
}

.admin-panel .dt-container .dt-paging {
    padding: 0.35rem 0;
}

.admin-panel .dt-container .dt-paging .dt-paging-button {
    border-radius: var(--admin-radius-sm) !important;
    border: 1px solid var(--admin-border) !important;
    background: #fff !important;
    color: var(--admin-text) !important;
    padding: 0.4rem 0.75rem !important;
    font-size: 0.8125rem !important;
    min-width: auto !important;
    margin: 0 2px !important;
    box-shadow: none !important;
}

.admin-panel .dt-container .dt-paging .dt-paging-button:hover:not(.disabled):not(.current) {
    background: var(--admin-bg) !important;
    border-color: var(--admin-primary-light) !important;
    color: var(--admin-primary) !important;
}

.admin-panel .dt-container .dt-paging .dt-paging-button.current,
.admin-panel .dt-container .dt-paging .dt-paging-button.current:hover {
    background: var(--admin-primary) !important;
    color: #fff !important;
    border-color: var(--admin-primary) !important;
}

.admin-panel .dt-container .dt-paging .dt-paging-button.disabled {
    opacity: 0.45;
}

.admin-panel .card-body.admin-card-table-body {
    padding: 1rem 1.25rem 1.25rem;
}

@media (max-width: 767px) {
    .admin-panel .dt-container .dt-layout-row:not(.dt-layout-table) {
        flex-direction: column;
        align-items: stretch;
        flex-wrap: wrap;
    }

    .admin-panel .dt-container .dt-layout-cell {
        width: 100%;
        justify-content: center !important;
    }

    .admin-panel .dt-container .dt-length,
    .admin-panel .dt-container .dt-search {
        justify-content: center;
    }
}

/* ---- Buttons ---- */
.admin-panel .hsr-theme-btn {
    background: linear-gradient(135deg, var(--admin-primary) 0%, var(--admin-primary-light) 100%);
    color: #fff;
    border: none;
    padding: 0.55rem 1.25rem;
    border-radius: var(--admin-radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--admin-transition);
    box-shadow: 0 2px 8px rgba(11, 30, 90, 0.2);
}

.admin-panel .hsr-theme-btn:hover {
    background: linear-gradient(135deg, var(--admin-primary-light) 0%, #2563eb 100%);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(11, 30, 90, 0.25);
}

.admin-panel .hsr-theme-danger-btn {
    border-radius: var(--admin-radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.55rem 1.25rem;
}

.admin-panel .btn-sm {
    font-size: 0.8125rem;
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
}

/* Compact up/down reorder controls in admin tables */
.admin-panel .admin-move-btns {
    display: inline-flex;
    flex-direction: column;
    gap: 2px;
    width: auto;
    vertical-align: middle;
}

.admin-panel .admin-move-btns .btn {
    width: 1.75rem;
    min-width: 1.75rem;
    height: 1.75rem;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    font-size: 0.875rem;
}

/* ---- Table action icons ---- */
.admin-table-actions {
    display: inline-flex;
    align-items: center;
    flex-wrap: nowrap;
    gap: 0.65rem;
    white-space: nowrap;
}

.admin-action-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    padding: 0;
    border: none;
    background: transparent;
    border-radius: 6px;
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    text-decoration: none;
    transition: color var(--admin-transition), background var(--admin-transition), transform var(--admin-transition);
}

.admin-action-icon:hover {
    transform: scale(1.1);
}

.admin-action-edit {
    color: #d97706;
}

.admin-action-edit:hover {
    color: #b45309;
    background: rgba(245, 158, 11, 0.12);
}

.admin-action-delete {
    color: #dc2626;
}

.admin-action-delete:hover {
    color: #b91c1c;
    background: rgba(239, 68, 68, 0.1);
}

.admin-action-view {
    color: #2563eb;
}

.admin-action-view:hover {
    color: #1d4ed8;
    background: rgba(37, 99, 235, 0.1);
}

/* ---- Forms ---- */
.admin-panel .form-control,
.admin-panel .form-select {
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius-sm);
    padding: 0.55rem 0.85rem;
    font-size: 0.875rem;
    transition: border-color var(--admin-transition), box-shadow var(--admin-transition);
}

.admin-panel .form-control:focus,
.admin-panel .form-select:focus {
    border-color: var(--admin-primary-light);
    box-shadow: 0 0 0 3px rgba(11, 30, 90, 0.1);
}

.admin-panel label,
.admin-panel .form-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--admin-text);
    margin-bottom: 0.35rem;
}

/* ---- Alerts ---- */
.admin-panel .alert {
    border-radius: var(--admin-radius-sm);
    border: none;
    font-size: 0.875rem;
    box-shadow: var(--admin-shadow-sm);
}

.admin-panel .alert-success {
    background: #ecfdf5;
    color: #065f46;
}

.admin-panel .alert-danger {
    background: #fef2f2;
    color: #991b1b;
}

.admin-panel .alert-info {
    background: #eff6ff;
    color: #1e40af;
}

/* ---- Badges ---- */
.admin-panel .badge {
    font-weight: 500;
    padding: 0.35em 0.65em;
    border-radius: 6px;
    font-size: 0.75rem;
}

/* ---- Welcome banner ---- */
.admin-welcome-banner {
    background: linear-gradient(135deg, var(--admin-primary) 0%, #1e3a8a 60%, #2563eb 100%);
    border-radius: var(--admin-radius);
    padding: 1.5rem 2rem;
    color: #fff;
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
}

.admin-welcome-banner::after {
    content: '';
    position: absolute;
    right: -2rem;
    top: -2rem;
    width: 160px;
    height: 160px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 50%;
}

.admin-welcome-banner::before {
    content: '';
    position: absolute;
    right: 3rem;
    bottom: -3rem;
    width: 120px;
    height: 120px;
    background: rgba(255, 221, 0, 0.08);
    border-radius: 50%;
}

.admin-welcome-banner h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    position: relative;
}

.admin-welcome-banner p {
    font-size: 0.875rem;
    opacity: 0.85;
    margin: 0;
    position: relative;
}

/* ---- Offcanvas (mobile sidebar only) ---- */
#hsrMenus.offcanvas {
    width: var(--admin-sidebar-width) !important;
    background: linear-gradient(180deg, var(--admin-sidebar-bg) 0%, #0b1e5a 100%) !important;
}

#hsrMenus.offcanvas .offcanvas-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1rem 1.25rem;
}

#hsrMenus.offcanvas .offcanvas-header img {
    max-height: 48px;
    filter: brightness(1);
}

#hsrMenus.offcanvas .offcanvas-header .btn {
    color: rgba(255, 255, 255, 0.7);
    padding: 0;
    font-size: 1.25rem;
}

#hsrMenus.offcanvas .offcanvas-body {
    padding: 0.75rem;
}

/* ---- Login page ---- */
.admin-login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a1744 0%, #0b1e5a 40%, #1e3a8a 100%);
    position: relative;
    overflow: hidden;
}

.admin-login-page::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 221, 0, 0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.admin-login-page::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.admin-login-card {
    background: #fff;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--admin-shadow-lg);
    position: relative;
    z-index: 1;
}

.admin-login-card h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--admin-text);
    margin-bottom: 0.35rem;
}

.admin-login-card .admin-login-subtitle {
    color: var(--admin-text-muted);
    font-size: 0.875rem;
    margin-bottom: 0;
}

.admin-login-logo {
    max-height: 72px;
    width: auto;
    margin-bottom: 1.5rem;
}

.admin-login-page .hsr-theme-btn {
    padding: 0.7rem 1.5rem;
    font-weight: 600;
    border-radius: var(--admin-radius-sm);
}

.admin-login-page .form-control {
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius-sm);
    padding: 0.65rem 0.85rem;
}

.admin-login-page .form-control:focus {
    border-color: var(--admin-primary-light);
    box-shadow: 0 0 0 3px rgba(11, 30, 90, 0.1);
}

.admin-login-page .hsr-forgot-password {
    color: var(--admin-primary-light);
    font-size: 0.8125rem;
    font-weight: 500;
}

.admin-login-page .hsr-forgot-password:hover {
    color: var(--admin-primary);
}

/* Override guest layout constraints for admin login */
body:has(.admin-login-page) .hsr-main-content {
    height: auto;
    min-height: 100vh;
    background: transparent;
}

body:has(.admin-login-page) {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ---- Admin profile page ---- */
.admin-profile-summary {
    overflow: hidden;
    box-shadow: var(--admin-shadow);
}

.admin-profile-summary-top {
    background: linear-gradient(135deg, var(--admin-primary) 0%, var(--admin-primary-light) 100%);
    padding: 2rem 1.5rem 1.5rem;
    text-align: center;
    color: #fff;
}

.admin-profile-avatar-lg {
    width: 5rem;
    height: 5rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    border: 3px solid rgba(255, 255, 255, 0.35);
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.admin-profile-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: #fff;
}

.admin-profile-email {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1rem;
}

.admin-profile-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}

.admin-profile-role-badge {
    background: rgba(255, 221, 0, 0.2);
    color: var(--admin-sidebar-accent);
    border: 1px solid rgba(255, 221, 0, 0.35);
}

.admin-profile-meta li {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    font-size: 0.8125rem;
    color: var(--admin-text-muted);
    padding: 0.35rem 0;
}

.admin-profile-meta li i {
    color: var(--admin-primary-light);
    margin-top: 0.1rem;
}

.admin-profile-detail {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    padding: 1rem;
    background: var(--admin-bg);
    border-radius: var(--admin-radius-sm);
    border: 1px solid var(--admin-border);
    height: 100%;
}

.admin-profile-detail-icon {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: var(--admin-radius-sm);
    background: #fff;
    border: 1px solid var(--admin-border);
    color: var(--admin-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.admin-profile-detail-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--admin-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.2rem;
}

.admin-profile-detail-value {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--admin-text);
    word-break: break-word;
}

.admin-status-badge {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    padding: 0.4em 0.65em;
    text-transform: capitalize;
}

html {
    scroll-behavior: smooth;
}

/* ---- Change password page ---- */
.admin-change-password-card {
    box-shadow: var(--admin-shadow);
}

.admin-change-password-aside {
    background: linear-gradient(160deg, var(--admin-primary) 0%, #1a3a8f 55%, #2563eb 100%);
    color: #fff;
}

.admin-change-password-aside-inner {
    padding: 2.5rem 2rem;
    height: 100%;
}

.admin-change-password-shield {
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1.25rem;
    color: var(--admin-sidebar-accent);
}

.admin-change-password-aside h4 {
    color: #fff;
    font-weight: 600;
}

.admin-change-password-lead {
    color: rgba(255, 255, 255, 0.82);
    font-size: 0.9375rem;
    margin-bottom: 1.75rem;
}

.admin-change-password-tips li {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
    padding: 0.4rem 0;
}

.admin-change-password-tips li i {
    color: var(--admin-sidebar-accent);
    margin-top: 0.1rem;
    flex-shrink: 0;
}

.admin-change-password-form-wrap {
    background: var(--admin-card-bg);
}

.admin-password-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.admin-password-input-icon {
    position: absolute;
    left: 0.85rem;
    color: var(--admin-text-muted);
    z-index: 2;
    pointer-events: none;
}

.admin-password-input-wrap .form-control {
    padding-left: 2.5rem;
    padding-right: 2.75rem;
    min-height: 44px;
    border-radius: var(--admin-radius-sm);
}

.admin-password-toggle {
    position: absolute;
    right: 0.35rem;
    border: none;
    background: transparent;
    color: var(--admin-text-muted);
    width: 2rem;
    height: 2rem;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.admin-password-toggle:hover {
    background: var(--admin-bg);
    color: var(--admin-primary);
}

.admin-password-strength-bar {
    height: 5px;
    background: var(--admin-border);
    border-radius: 999px;
    overflow: hidden;
}

.admin-password-strength-bar span {
    display: block;
    height: 100%;
    width: 0;
    border-radius: 999px;
    transition: width 0.25s ease, background 0.25s ease;
    background: #dc3545;
}

.admin-password-strength-bar span.is-weak { background: #dc3545; }
.admin-password-strength-bar span.is-fair { background: #fd7e14; }
.admin-password-strength-bar span.is-good { background: #ffc107; }
.admin-password-strength-bar span.is-strong { background: #28a745; }

.admin-security-promo {
    background: linear-gradient(135deg, rgba(11, 30, 90, 0.04) 0%, rgba(37, 99, 235, 0.06) 100%);
    border: 1px solid var(--admin-border) !important;
}

.admin-security-promo-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 0.85rem;
    background: linear-gradient(135deg, var(--admin-primary) 0%, var(--admin-primary-light) 100%);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
}

@media (max-width: 991px) {
    .admin-change-password-aside-inner {
        padding: 2rem 1.5rem;
    }
}

/* ---- Alumni directory toolbar + columns drawer ---- */
.admin-alumni-name-cell {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    min-width: 0;
}

.user-avatar {
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 1px solid var(--admin-border);
    background: #fff;
}

.user-avatar-sm,
.admin-alumni-avatar {
    width: 32px;
    height: 32px;
}

.admin-alumni-pagination {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.admin-alumni-pagination .pagination {
    margin-bottom: 0;
}

.admin-alumni-dt-wrap .dt-container {
    width: 100%;
}

.admin-alumni-dt-wrap .dt-length label,
.admin-alumni-dt-wrap .dt-search label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--admin-text-muted, #6c757d);
}

.admin-alumni-dt-wrap .dt-search input {
    min-width: 260px;
}

.admin-alumni-dt-wrap .dt-paging .pagination {
    justify-content: flex-end;
    margin-bottom: 0;
}

.admin-alumni-dt-wrap .dt-info {
    font-size: 0.875rem;
    color: var(--admin-text-muted, #6c757d);
}

.admin-alumni-toolbar {
    gap: 1rem;
}

.admin-alumni-toolbar-actions {
    flex-shrink: 0;
    margin-left: auto;
    padding-bottom: 0.125rem;
}

.admin-columns-drawer-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
    border: 1px solid var(--admin-border);
    background: var(--admin-card-bg);
    color: var(--admin-primary);
    font-weight: 600;
    font-size: 0.875rem;
    padding: 0.625rem 1rem;
    border-radius: var(--admin-radius-sm);
    box-shadow: var(--admin-shadow-sm);
    transition: background var(--admin-transition), border-color var(--admin-transition), box-shadow var(--admin-transition);
}

.admin-columns-drawer-btn:hover,
.admin-columns-drawer-btn:focus {
    background: #fff;
    border-color: rgba(11, 30, 90, 0.22);
    box-shadow: var(--admin-shadow);
    color: var(--admin-primary);
}

.admin-columns-drawer-btn i {
    font-size: 1rem;
    opacity: 0.85;
}

.admin-columns-drawer.offcanvas {
    width: min(380px, 100vw) !important;
    background: #fff !important;
    background-color: #fff !important;
    color: var(--admin-text) !important;
    border-left: 1px solid var(--admin-border);
    box-shadow: -8px 0 32px rgba(11, 30, 90, 0.12);
    height: 100vh;
    overflow: auto;
}

body.admin-panel .admin-columns-drawer.offcanvas,
body.admin-panel .admin-columns-drawer .offcanvas-header,
body.admin-panel .admin-columns-drawer .offcanvas-body,
body.admin-panel .admin-columns-drawer .admin-columns-drawer-footer {
    background: #fff !important;
    background-color: #fff !important;
    color: var(--admin-text);
}

body.admin-panel .admin-columns-drawer .offcanvas-title,
body.admin-panel .admin-columns-drawer .admin-columns-item-label {
    color: var(--admin-text) !important;
}

body.admin-panel .admin-columns-drawer .text-muted {
    color: var(--admin-text-muted) !important;
}

.admin-columns-drawer .offcanvas-header {
    padding: 1.35rem 1.35rem 1.1rem;
    border-bottom: 1px solid var(--admin-border) !important;
    background: #fff;
    align-items: flex-start;
}

.admin-columns-drawer .offcanvas-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--admin-text);
    letter-spacing: -0.01em;
}

.admin-columns-drawer .btn-close {
    margin-top: 0.15rem;
    opacity: 0.55;
}

.admin-columns-drawer .btn-close:hover {
    opacity: 0.85;
}

.admin-columns-drawer-head {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
}

.admin-columns-drawer-head-icon {
    width: 2.35rem;
    height: 2.35rem;
    border-radius: 0.65rem;
    background: rgba(11, 30, 90, 0.06);
    color: var(--admin-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.05rem;
    flex-shrink: 0;
}

.admin-columns-drawer .offcanvas-body {
    padding: 0;
    background: #fff;
    overflow: hidden;
}

.admin-columns-drawer-form {
    min-height: 100%;
}

.admin-columns-note {
    margin: 1rem 1.35rem 0.75rem;
    padding: 0.75rem 0.9rem;
    border-radius: var(--admin-radius-sm);
    background: rgba(11, 30, 90, 0.04);
    border: 1px solid rgba(11, 30, 90, 0.08);
    font-size: 0.8125rem;
    color: var(--admin-text-muted);
    line-height: 1.45;
}

.admin-columns-note strong {
    color: var(--admin-text);
    font-weight: 600;
}

.admin-columns-list {
    list-style: none;
    margin: 0;
    padding: 0 0.65rem;
}

.admin-columns-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem 0.75rem;
    border-bottom: 1px solid var(--admin-border);
}

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

.admin-columns-item-label {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--admin-text);
    margin: 0;
    cursor: pointer;
}

.admin-columns-item .form-check {
    padding-left: 0;
    margin: 0;
    min-height: auto;
    display: flex;
    align-items: center;
}

.admin-columns-item .form-check-input {
    width: 2.5rem;
    height: 1.35rem;
    margin: 0;
    cursor: pointer;
    float: none;
}

.admin-columns-item .form-check-input:checked {
    background-color: var(--admin-primary);
    border-color: var(--admin-primary);
}

.admin-columns-drawer-footer {
    display: flex;
    gap: 0.75rem;
    padding: 1rem 1.35rem 1.35rem;
    border-top: 1px solid var(--admin-border);
    background: #fafbfe;
}

.admin-columns-drawer-footer .btn {
    flex: 1;
    font-weight: 600;
    padding: 0.65rem 1rem;
}

.admin-columns-drawer-footer .btn-light {
    border: 1px solid var(--admin-border);
    background: #fff;
    color: var(--admin-text-muted);
}

.admin-columns-drawer-footer .btn-light:hover {
    background: #fff;
    border-color: rgba(11, 30, 90, 0.18);
    color: var(--admin-text);
}

@media (max-width: 767px) {
    .admin-alumni-toolbar {
        flex-direction: column;
        align-items: stretch !important;
    }

    .admin-alumni-toolbar-actions {
        width: 100%;
        margin-left: 0;
    }

    .admin-columns-drawer-btn {
        width: 100%;
        justify-content: center;
    }
}