:root {
    --portal-bg: #f5f7fb;
    --portal-surface: #ffffff;
    --portal-text: #0f172a;
    --portal-muted: #64748b;
    --portal-border: #e2e8f0;
    --portal-primary: #1d4ed8;
    --portal-primary-strong: #1e40af;
    --portal-accent: #2563eb;
    --portal-radius: 12px;
    --portal-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
    --portal-shadow-soft: 0 6px 16px rgba(15, 23, 42, 0.06);
}

body {
    background-color: var(--portal-bg);
    color: var(--portal-text);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.admin-shell {
    display: block;
    min-height: calc(100vh - 64px);
}

.admin-sidebar {
    --bs-offcanvas-width: 260px;
    width: 260px;
    border-right: 1px solid var(--portal-border);
    background-color: #f8fafc;
    box-shadow: inset -1px 0 0 rgba(148, 163, 184, 0.15);
}

.admin-sidebar .offcanvas-header {
    padding: 1.5rem 1.25rem 0.75rem;
}

.admin-sidebar .offcanvas-title {
    font-size: 1rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--portal-muted);
}

.admin-sidebar .offcanvas-body {
    padding: 0;
    overflow-x: hidden;
}

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

.admin-nav .nav-link {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.55rem 0.9rem;
    margin: 0.15rem 0.25rem;
    color: #334155;
    font-weight: 500;
    border-radius: 10px;
    transition: color 0.2s ease, background-color 0.2s ease;
}

.admin-nav .nav-link:hover {
    color: var(--portal-primary-strong);
    background-color: rgba(37, 99, 235, 0.08);
}

.admin-nav .nav-link.active {
    color: var(--portal-primary-strong);
    background-color: rgba(37, 99, 235, 0.12);
}

.admin-nav .nav-link.active::before {
    content: "";
    position: absolute;
    left: 0.35rem;
    top: 0.4rem;
    bottom: 0.4rem;
    width: 3px;
    border-radius: 999px;
    background-color: var(--portal-primary);
}

.admin-content {
    flex: 1;
    min-width: 0;
}

@media (min-width: 992px) {
    #adminSidebar.admin-sidebar,
    #clientSidebar.admin-sidebar {
        position: static !important;
        transform: none !important;
        visibility: visible !important;
        width: 260px;
        height: auto;
        border-right: 1px solid rgba(0, 0, 0, 0.08);
    }

    #adminSidebar .offcanvas-body,
    #clientSidebar .offcanvas-body {
        display: block !important;
        overflow-x: hidden;
    }

    .admin-layout {
        display: flex;
    }

    .admin-content {
        flex: 1;
        min-width: 0;
    }
}

.admin-tabs-wrapper {
    background-color: var(--portal-surface);
    border-bottom: 1px solid var(--portal-border);
}

.admin-tabs {
    padding: 0 1rem;
}

.admin-tabs .nav-link {
    border: none;
    color: var(--portal-muted);
    font-weight: 500;
    padding: 0.9rem 1.1rem;
}

.admin-tabs .nav-link.active {
    color: var(--portal-primary-strong);
    border-bottom: 2px solid var(--portal-primary);
    background-color: transparent;
}

main.container {
    max-width: 1200px;
    flex: 1 0 auto;
}

.portal-navbar {
    background-color: var(--portal-primary);
    box-shadow: 0 2px 10px rgba(15, 23, 42, 0.12);
}

.portal-navbar .navbar-brand {
    font-weight: 600;
    letter-spacing: 0.02em;
}

.brand {
    letter-spacing: 0.2em;
    text-transform: uppercase;
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.7);
}

.card {
    border: 1px solid var(--portal-border);
    border-radius: var(--portal-radius);
    background-color: var(--portal-surface);
    box-shadow: var(--portal-shadow-soft);
}

.shadow-lg {
    box-shadow: var(--portal-shadow) !important;
}

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

.form-label {
    font-weight: 500;
    color: var(--portal-text);
}

.form-control,
.form-select,
.form-control:focus,
.form-select:focus {
    background-color: #ffffff;
    color: var(--portal-text);
    border-color: #cbd5f5;
    border-radius: 10px;
    box-shadow: none;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--portal-accent);
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.15);
}

.form-control::placeholder {
    color: #94a3b8;
}

.btn {
    border-radius: 10px;
    font-weight: 500;
}

.btn-primary {
    background-color: var(--portal-primary);
    border-color: var(--portal-primary-strong);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--portal-primary-strong);
    border-color: var(--portal-primary-strong);
}

.btn-outline-secondary {
    color: #475569;
    border-color: #cbd5e1;
}

.btn-outline-secondary:hover,
.btn-outline-secondary:focus {
    color: var(--portal-primary);
    border-color: var(--portal-primary);
    background-color: rgba(37, 99, 235, 0.08);
}

.portal-navbar .btn-outline-secondary {
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.65);
}

.portal-navbar .btn-outline-secondary:hover,
.portal-navbar .btn-outline-secondary:focus {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.9);
}

.alert {
    border-radius: 12px;
    border: 1px solid transparent;
    box-shadow: none;
}

.alert-success {
    border-color: rgba(16, 185, 129, 0.25);
}

.portal-footer {
    border-top: 1px solid var(--portal-border);
    background-color: #eef2f7;
}

.portal-footer a {
    color: var(--portal-primary);
    text-decoration: none;
}

.portal-footer a:hover,
.portal-footer a:focus {
    color: var(--portal-primary-strong);
    text-decoration: underline;
}

.alert-danger {
    border-color: rgba(239, 68, 68, 0.25);
}

.alert-warning {
    border-color: rgba(245, 158, 11, 0.25);
}

.table {
    color: var(--portal-text);
}

.table thead th {
    background-color: #f1f5f9;
    color: #475569;
    font-weight: 600;
    border-bottom-color: var(--portal-border);
}

.table-striped > tbody > tr:nth-of-type(odd) > * {
    background-color: #f8fafc;
}

.table td,
.table th {
    border-color: var(--portal-border);
}

.bg-body-tertiary {
    background-color: #f8fafc !important;
}

.badge.bg-info {
    background-color: #e0f2fe !important;
    color: #075985 !important;
}

.badge.bg-warning {
    background-color: #fef3c7 !important;
    color: #92400e !important;
}

.badge.bg-success {
    background-color: #dcfce7 !important;
    color: #166534 !important;
}

.pagination .page-link {
    color: #475569;
    border-radius: 10px;
    border-color: var(--portal-border);
}

.pagination .page-item.active .page-link {
    background-color: var(--portal-primary);
    border-color: var(--portal-primary);
}

.ticket-row {
    --ticket-priority-accent: #cbd5e1;
    --ticket-priority-surface: transparent;
}

.ticket-row > * {
    background-color: var(--ticket-priority-surface) !important;
}

.ticket-row > *:first-child {
    border-left: 0.4rem solid var(--ticket-priority-accent);
}

.ticket-row--low {
    --ticket-priority-accent: #2563eb;
    --ticket-priority-surface: rgba(37, 99, 235, 0.08);
}

.ticket-row--normal {
    --ticket-priority-accent: #16a34a;
    --ticket-priority-surface: rgba(22, 163, 74, 0.08);
}

.ticket-row--high {
    --ticket-priority-accent: #ca8a04;
    --ticket-priority-surface: rgba(202, 138, 4, 0.1);
}

.ticket-row--urgent {
    --ticket-priority-accent: #ea580c;
    --ticket-priority-surface: rgba(234, 88, 12, 0.1);
}

.table-hover > tbody > tr.ticket-row:hover > * {
    background-color: color-mix(in srgb, var(--ticket-priority-surface) 70%, #e2e8f0 30%) !important;
}

@supports not (background-color: color-mix(in srgb, white 50%, black)) {
    .table-hover > tbody > tr.ticket-row:hover > * {
        filter: brightness(0.98);
    }
}

@media (max-width: 991.98px) {
    .admin-shell {
        flex-direction: column;
        min-height: auto;
    }

    .admin-sidebar {
        width: 100%;
    }

    .admin-tabs {
        padding: 0 0.5rem;
    }

    main.container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .card {
        box-shadow: var(--portal-shadow-soft);
    }
}