/* ============================================================
   THEME: ngx-admin (Nebular / Eva Design System) - full layout
   Áp cho cả Admin và User, giữ nguyên PHP server-render.
   Cấu trúc: header cố định full-width phía trên + sidebar thu
   gọn được bên trái + nội dung bên phải, đúng bố cục ngx-admin.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;600;700;800&display=swap');

:root {
    --header-height: 64px;
    --sidebar-width: 260px;
    --sidebar-width-collapsed: 76px;

    /* Nebular / Eva basic scale */
    --nb-basic-800: #222b45;
    --nb-basic-900: #192038;
    --nb-basic-1000: #151a30;
    --nb-basic-1100: #101426;

    /* Nebular status colors */
    --nb-primary: #3366ff;
    --nb-success: #00d68f;
    --nb-info: #0095ff;
    --nb-warning: #ffaa00;
    --nb-danger: #ff3d71;

    --nb-text-muted: #8f9bb3;
    --nb-radius: 1rem;
    --nb-radius-sm: 0.5rem;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bs-tertiary-bg);
    padding-top: var(--header-height);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Open Sans', sans-serif;
    font-weight: 700;
}

/* ================= HEADER (luôn tối, giống ngx-admin thật) ================= */
.topbar {
    height: var(--header-height);
    background-color: var(--nb-basic-900);
    border-bottom: 1px solid rgba(143, 155, 179, 0.16);
    z-index: 1040;
    align-items: center;
}

.topbar-brand {
    color: #fff;
    font-size: 1.05rem;
}

.topbar .btn-icon,
.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: #e4e9f2;
    font-size: 1.05rem;
    transition: background-color 0.15s;
}

.topbar .btn-icon:hover,
.topbar .btn-icon:focus,
.btn-icon:hover {
    background-color: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.topbar .dropdown-menu {
    background-color: var(--nb-basic-800);
    border: none;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

.topbar .dropdown-item {
    color: #e4e9f2;
}

.topbar .dropdown-item:hover {
    background-color: rgba(255, 255, 255, 0.08);
    color: #fff;
}

/* ================= SIDEBAR ================= */
.sidebar {
    width: var(--sidebar-width);
    position: fixed;
    top: var(--header-height);
    left: 0;
    height: calc(100vh - var(--header-height));
    overflow-y: auto;
    overflow-x: hidden;
    flex-shrink: 0;
    background: linear-gradient(180deg, var(--nb-basic-900) 0%, var(--nb-basic-1000) 100%);
    z-index: 1030;
    transition: width 0.2s ease-in-out, left 0.2s ease-in-out;
}

.nav-section-label {
    color: var(--nb-text-muted);
    text-transform: uppercase;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 1rem 1rem 0.4rem;
    white-space: nowrap;
}

.sidebar .nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-radius: var(--nb-radius-sm);
    padding: 0.65rem 1rem;
    opacity: 0.78;
    font-size: 0.9rem;
    font-weight: 600;
    color: #e4e9f2;
    margin: 1px 0.5rem;
    border-left: 3px solid transparent;
    white-space: nowrap;
    transition: all 0.15s ease-in-out;
}

.sidebar .nav-link i {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.sidebar .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.06);
    opacity: 1;
    color: #fff;
}

.sidebar .nav-link.active {
    background-color: rgba(51, 102, 255, 0.18);
    border-left-color: var(--nb-primary);
    color: #fff;
    opacity: 1;
}

/* Chế độ thu gọn sidebar (desktop) - đặc trưng ngx-admin */
body.sidebar-collapsed .sidebar {
    width: var(--sidebar-width-collapsed);
}

body.sidebar-collapsed .nav-section-label,
body.sidebar-collapsed .nav-text {
    display: none;
}

body.sidebar-collapsed .sidebar .nav-link {
    justify-content: center;
    margin: 1px 0.4rem;
}

body.sidebar-collapsed .main-content {
    margin-left: var(--sidebar-width-collapsed);
}

/* ================= MAIN CONTENT ================= */
.main-content {
    margin-left: var(--sidebar-width);
    min-width: 0;
    min-height: calc(100vh - var(--header-height));
    transition: margin-left 0.2s ease-in-out;
}

@media (max-width: 991.98px) {
    .sidebar {
        left: -260px;
        z-index: 1050;
    }
    .sidebar.show {
        left: 0;
    }
    .main-content,
    body.sidebar-collapsed .main-content {
        margin-left: 0;
    }
    #sidebarCollapseToggle {
        display: none !important;
    }
}

/* ================= DARK MODE (nền + card + form) ================= */
[data-bs-theme="dark"] {
    --bs-body-bg: var(--nb-basic-1000);
    --bs-body-color: #e4e9f2;
    --bs-tertiary-bg: var(--nb-basic-1000);
    --bs-secondary-bg: var(--nb-basic-900);
    --bs-border-color: rgba(143, 155, 179, 0.16);

    --bs-primary: var(--nb-primary);
    --bs-primary-rgb: 51, 102, 255;
    --bs-success: var(--nb-success);
    --bs-success-rgb: 0, 214, 143;
    --bs-info: var(--nb-info);
    --bs-info-rgb: 0, 149, 255;
    --bs-warning: var(--nb-warning);
    --bs-warning-rgb: 255, 170, 0;
    --bs-danger: var(--nb-danger);
    --bs-danger-rgb: 255, 61, 113;
}

[data-bs-theme="dark"] .card,
[data-bs-theme="dark"] .modal-content {
    background-color: var(--nb-basic-800);
    border: none;
    color: #e4e9f2;
}

[data-bs-theme="dark"] .form-control,
[data-bs-theme="dark"] .form-select {
    background-color: var(--nb-basic-900);
    border-color: rgba(143, 155, 179, 0.24);
    color: #e4e9f2;
}

[data-bs-theme="dark"] .form-control:focus,
[data-bs-theme="dark"] .form-select:focus {
    background-color: var(--nb-basic-900);
    color: #e4e9f2;
    border-color: var(--nb-primary);
    box-shadow: 0 0 0 0.2rem rgba(51, 102, 255, 0.25);
}

[data-bs-theme="dark"] .table {
    --bs-table-bg: transparent;
    --bs-table-color: #e4e9f2;
    --bs-table-border-color: rgba(143, 155, 179, 0.16);
}

[data-bs-theme="dark"] .table thead {
    color: var(--nb-text-muted);
    text-transform: uppercase;
    font-size: 0.72rem;
    letter-spacing: 0.03em;
}

/* ================= CARDS (kiểu nb-card) ================= */
.card {
    border: none;
    border-radius: var(--nb-radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

[data-bs-theme="dark"] .card {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
}

.card > .card-header {
    background: transparent;
    border-bottom: 1px solid var(--bs-border-color);
    font-weight: 700;
    padding: 1rem 1.25rem;
}

/* ================= STAT CARDS ================= */
.stat-card {
    border-radius: var(--nb-radius);
    padding: 1.4rem;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    right: -20px;
    bottom: -20px;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
}

.stat-card .stat-icon-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.18);
    font-size: 1.2rem;
    position: relative;
    z-index: 1;
}

.stat-card .stat-value {
    font-size: 1.85rem;
    font-weight: 800;
    position: relative;
    z-index: 1;
}

.stat-card .bi {
    opacity: 0.85;
}

/* ================= BUTTONS ================= */
.btn {
    border-radius: var(--nb-radius-sm);
    font-weight: 600;
    transition: box-shadow 0.15s, transform 0.1s;
}

.btn:active {
    transform: translateY(1px);
}

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

.btn-primary:hover,
.btn-primary:focus {
    background-color: #2952cc;
    border-color: #2952cc;
    box-shadow: 0 4px 14px rgba(51, 102, 255, 0.4);
}

.btn-success {
    background-color: var(--nb-success);
    border-color: var(--nb-success);
}

.btn-success:hover,
.btn-success:focus {
    box-shadow: 0 4px 14px rgba(0, 214, 143, 0.4);
}

.btn-danger {
    background-color: var(--nb-danger);
    border-color: var(--nb-danger);
}

.btn-danger:hover,
.btn-danger:focus {
    box-shadow: 0 4px 14px rgba(255, 61, 113, 0.4);
}

.btn-warning {
    background-color: var(--nb-warning);
    border-color: var(--nb-warning);
    color: #101426;
}

.btn-warning:hover,
.btn-warning:focus {
    box-shadow: 0 4px 14px rgba(255, 170, 0, 0.4);
}

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

.btn-outline-primary:hover {
    background-color: var(--nb-primary);
    border-color: var(--nb-primary);
    box-shadow: 0 4px 14px rgba(51, 102, 255, 0.35);
}

.btn-outline-danger {
    color: var(--nb-danger);
    border-color: var(--nb-danger);
}

.btn-outline-danger:hover {
    background-color: var(--nb-danger);
    border-color: var(--nb-danger);
    box-shadow: 0 4px 14px rgba(255, 61, 113, 0.35);
}

.btn-outline-secondary:hover {
    box-shadow: 0 4px 14px rgba(143, 155, 179, 0.25);
}

/* ================= FORM CONTROLS (kiểu "ghost" Nebular) ================= */
.form-control,
.form-select {
    border-radius: var(--nb-radius-sm);
    border-color: var(--bs-border-color);
    background-color: var(--bs-secondary-bg);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus,
.form-select:focus {
    background-color: var(--bs-secondary-bg);
    border-color: var(--nb-primary);
    box-shadow: 0 0 0 3px rgba(51, 102, 255, 0.15);
}

.form-control.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(255, 61, 113, 0.18);
}

.form-label {
    font-weight: 600;
    font-size: 0.85rem;
}

/* Switch/checkbox theo đúng màu Nebular thay vì xanh Bootstrap mặc định */
.form-check-input:checked {
    background-color: var(--nb-primary);
    border-color: var(--nb-primary);
}

.form-check-input:focus {
    border-color: var(--nb-primary);
    box-shadow: 0 0 0 3px rgba(51, 102, 255, 0.15);
}

/* ================= MODAL (đồng bộ bo góc + header/footer kiểu nb-card) ================= */
.modal-content {
    border-radius: var(--nb-radius);
    border: none;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.modal-header,
.modal-footer {
    border-color: var(--bs-border-color);
    padding: 1.1rem 1.4rem;
}

.modal-header .modal-title {
    font-weight: 700;
    font-size: 1.05rem;
}

.modal-body {
    padding: 1.4rem;
}

/* ================= BADGES / STATUS / TEXT ================= */
.status-badge,
.badge {
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.35em 0.75em;
    border-radius: 20px;
    letter-spacing: 0.02em;
}

.bg-primary { background-color: var(--nb-primary) !important; }
.bg-success { background-color: var(--nb-success) !important; }
.bg-info { background-color: var(--nb-info) !important; }
.bg-warning { background-color: var(--nb-warning) !important; color: #101426 !important; }
.bg-danger { background-color: var(--nb-danger) !important; }

.text-primary { color: var(--nb-primary) !important; }
.text-success { color: var(--nb-success) !important; }
.text-danger { color: var(--nb-danger) !important; }
.text-warning { color: var(--nb-warning) !important; }

/* ================= MEDIA / MISC ================= */
.media-thumb {
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: var(--nb-radius-sm);
    cursor: pointer;
    transition: transform 0.15s;
}

.media-thumb:hover {
    transform: scale(1.03);
}

.provider-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.3rem 0.7rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    background: var(--bs-secondary-bg);
}

.calendar-day {
    min-height: 100px;
    border: 1px solid var(--bs-border-color);
    padding: 6px;
    border-radius: var(--nb-radius-sm);
    transition: background-color 0.15s;
}

.calendar-day.is-today {
    border: 2px solid var(--nb-primary);
    background-color: rgba(51, 102, 255, 0.05);
}

.calendar-event {
    font-size: 0.7rem;
    padding: 3px 6px;
    border-radius: 6px;
    color: #fff;
    margin-bottom: 3px;
    cursor: grab;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 600;
}

/* ================= SCROLLBAR (mảnh, kiểu Nebular) ================= */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-thumb {
    background: rgba(143, 155, 179, 0.4);
    border-radius: 8px;
}

/* ================= PAGE HEADER ================= */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.page-header .page-title {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 0.2rem;
    line-height: 1.2;
}

.page-header .page-subtitle {
    color: var(--nb-text-muted);
    font-size: 0.85rem;
    font-weight: 400;
}

/* ================= FILTER TOOLBAR ================= */
.filter-bar {
    padding: 0.85rem 1.1rem;
    margin-bottom: 1.25rem;
}

.filter-bar .form-control,
.filter-bar .form-select {
    border-radius: 20px;
    font-size: 0.875rem;
}

/* ================= TABLE (kiểu Nebular smart-table) ================= */
.table-nb {
    margin-bottom: 0;
}

.table-nb thead th {
    text-transform: uppercase;
    font-size: 0.68rem;
    letter-spacing: 0.05em;
    color: var(--nb-text-muted);
    font-weight: 700;
    border-bottom: 2px solid var(--bs-border-color);
    padding: 0.9rem 1.1rem;
    white-space: nowrap;
}

.table-nb tbody td {
    padding: 0.8rem 1.1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--bs-border-color);
    font-size: 0.875rem;
}

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

.table-nb tbody tr {
    transition: background-color 0.1s;
}

.table-nb tbody tr:hover {
    background-color: rgba(51, 102, 255, 0.05);
}

[data-bs-theme="dark"] .table-nb tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.035);
}

/* ================= ROW ACTION BUTTONS (icon tròn, kiểu Nebular) ================= */
.btn-row-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: none;
    background: transparent;
    color: var(--nb-text-muted);
    font-size: 0.95rem;
    transition: all 0.15s;
    cursor: pointer;
}

.btn-row-action:hover {
    background: rgba(51, 102, 255, 0.12);
    color: var(--nb-primary);
}

.btn-row-action.text-danger:hover,
.btn-row-action.danger:hover {
    background: rgba(255, 61, 113, 0.12) !important;
    color: var(--nb-danger) !important;
}

.btn-row-action.text-warning:hover,
.btn-row-action.warning:hover {
    background: rgba(255, 170, 0, 0.12) !important;
    color: var(--nb-warning) !important;
}

.btn-row-action.text-primary:hover {
    background: rgba(51, 102, 255, 0.12) !important;
    color: var(--nb-primary) !important;
}

/* ================= AVATAR CHỮ CÁI ================= */
.avatar-initials {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(51, 102, 255, 0.15);
    color: var(--nb-primary);
    font-weight: 700;
    font-size: 0.82rem;
    flex-shrink: 0;
}

/* ================= EMPTY STATE ================= */
.empty-state {
    text-align: center;
    padding: 3.5rem 1rem;
    color: var(--nb-text-muted);
}

.empty-state i {
    font-size: 2.75rem;
    opacity: 0.45;
    display: block;
    margin-bottom: 0.85rem;
}

.empty-state p {
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

/* ================= PAGINATION (bo tròn kiểu Nebular) ================= */
.pagination {
    gap: 0.25rem;
}

.pagination .page-link {
    border: none;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bs-body-color);
    background: transparent;
    font-weight: 600;
    font-size: 0.85rem;
}

.pagination .page-item.active .page-link {
    background: var(--nb-primary);
    color: #fff;
}

.pagination .page-item.disabled .page-link {
    opacity: 0.35;
}

/* ================= MEDIA CARD (thư viện) ================= */
.media-card {
    padding: 0.6rem;
    text-align: center;
    transition: transform 0.15s;
}

.media-card:hover {
    transform: translateY(-3px);
}

/* ================= NAV PILLS (settings tabs, kiểu Nebular) ================= */
.settings-tabs {
    gap: 0.4rem;
    border-bottom: 1px solid var(--bs-border-color);
    padding-bottom: 1rem;
}

.settings-tabs .nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--bs-body-color);
    background: var(--bs-secondary-bg);
    border-radius: 20px;
    padding: 0.45rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    opacity: 0.8;
}

.settings-tabs .nav-link:hover {
    opacity: 1;
}

.settings-tabs .nav-link.active {
    background: var(--nb-primary);
    color: #fff;
    opacity: 1;
}