* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #cccccc;
    --primary-hover: #999999;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #06b6d4;
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

.app-header-fixed {
    padding-top: 64px;
}

.app-header,
.bg-dark.app-header,
.bg-primary.app-header,
.bg-black.app-header,
.bg-light.app-header,
.bg-white.app-header,
.navbar.bg-dark,
.navbar.bg-primary,
.navbar.bg-black,
.navbar.bg-light,
.navbar.bg-white {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: var(--bg-secondary) !important;
    border-bottom: 1px solid var(--border-color) !important;
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 0 24px;
}

.navbar-header {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    width: 260px;
}

.navbar-brand,
.bg-dark .navbar-brand,
.bg-primary .navbar-brand,
.bg-black .navbar-brand,
.bg-light .navbar-brand,
.bg-white .navbar-brand {
    display: flex;
    align-items: center;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary) !important;
    text-decoration: none;
}

@media (max-width: 767.98px) {
    .info-cards-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 10px !important;
        margin-bottom: 20px !important;
    }
    
    .info-card {
        padding: 12px !important;
    }
    
    .info-card-label {
        font-size: 12px !important;
        margin-bottom: 4px !important;
    }
    
    .info-card-value {
        font-size: 16px !important;
    }
    
    .function-grid {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 10px !important;
        margin-bottom: 16px !important;
    }
    
    .function-link {
        padding: 12px 8px !important;
    }
    
    .function-icon {
        font-size: 20px !important;
        margin-bottom: 6px !important;
    }
    
    .function-label {
        font-size: 12px !important;
    }
    
    .notification-badge {
        top: 4px !important;
        right: 4px !important;
        font-size: 10px !important;
        padding: 1px 6px !important;
    }
    
    .user-profile-section {
        flex-direction: column !important;
        text-align: center !important;
        margin-bottom: 20px !important;
    }
    
    .user-avatar {
        margin-right: 0 !important;
        margin-bottom: 16px !important;
    }
    
    .user-avatar img {
        width: 64px !important;
        height: 64px !important;
    }
    
    .balance-amount {
        font-size: 24px !important;
    }
    
    .panel-body {
        padding: 16px !important;
    }
    
    .site-info-item {
        padding: 10px 0 !important;
    }
    
    .site-info-value {
        display: flex;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        gap: 10px;
    }
    
    .site-info-value .btn {
        flex-shrink: 0;
        white-space: nowrap;
    }
}

.navbar-brand i {
    color: var(--primary-color);
    margin-right: 10px;
    font-size: 20px;
}

.navbar-collapse {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-left: 260px;
}

.nav.navbar-nav {
    display: flex;
    align-items: center;
    list-style: none;
}

.nav.navbar-nav.hidden-xs {
    display: flex;
}

.nav.navbar-nav.navbar-right {
    margin-left: auto;
}

.navbar-nav > li {
    position: relative;
}

.navbar-nav > li > a,
.bg-dark .navbar-nav > li > a,
.bg-primary .navbar-nav > li > a,
.bg-black .navbar-nav > li > a,
.bg-light .navbar-nav > li > a,
.bg-white .navbar-nav > li > a {
    display: flex;
    align-items: center;
    padding: 8px 16px;
    color: var(--text-secondary) !important;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.navbar-nav > li > a:hover,
.bg-dark .navbar-nav > li > a:hover,
.bg-primary .navbar-nav > li > a:hover,
.bg-black .navbar-nav > li > a:hover,
.bg-light .navbar-nav > li > a:hover,
.bg-white .navbar-nav > li > a:hover {
    background: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
}

.thumb-sm {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--border-color);
}

.thumb-sm img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 200px;
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 8px 0;
    margin-top: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
}

.dropdown.open .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu > li > a {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    color: var(--text-primary) !important;
    text-decoration: none;
    transition: background var(--transition-fast);
}

.dropdown-menu > li > a:hover {
    background: var(--bg-tertiary) !important;
}

.dropdown-menu .divider {
    height: 1px;
    background: var(--border-color) !important;
    margin: 8px 0;
}

.app-aside,
.bg-dark.app-aside,
.bg-primary.app-aside,
.bg-black.app-aside,
.bg-light.app-aside,
.bg-white.app-aside {
    position: fixed;
    top: 64px;
    left: 0;
    bottom: 0;
    width: 260px;
    background: var(--bg-secondary) !important;
    border-right: 1px solid var(--border-color) !important;
    overflow-y: auto;
    z-index: 999;
}

.app-aside-folded .app-aside {
    width: 72px;
}

.aside-wrap {
    height: 100%;
}

.navi {
    padding: 16px 0;
}

.navi .nav {
    list-style: none;
}

.navi .nav > li {
    position: relative;
}

.navi .nav > li > a {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    padding: 12px 24px !important;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

.navi .nav > li > a > i:first-child {
    flex-shrink: 0 !important;
    margin-right: 12px !important;
    margin-left: 0 !important;
}

.navi .nav > li > a > span {
    flex-grow: 1 !important;
    text-align: left !important;
}

.navi .nav > li > a > span.pull-right {
    flex-grow: 0 !important;
    flex-shrink: 0 !important;
    margin-left: auto !important;
    margin-right: 0 !important;
}

.navi .nav > li > a:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.navi .nav > li:not(.hidden-folded) > a {
    border-left: 3px solid transparent;
}

.navi .nav > li.active > a {
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary-color);
    border-left: 3px solid var(--primary-color);
}

.navi .nav > li > .nav-sub > li > a {
    border-left: none;
    display: flex !important;
    align-items: center !important;
}

.navi .nav > li > .nav-sub > li > a > i {
    margin-right: 12px !important;
    flex-shrink: 0 !important;
}

.navi .nav > li > .nav-sub > li.active > a {
    background: rgba(59, 130, 246, 0.05);
    color: var(--primary-color);
    border-left: none;
}

.navi .nav > li > .nav-sub {
    background: var(--bg-tertiary);
}

.navi .nav > li > a,
.bg-dark .navi .nav > li > a,
.bg-primary .navi .nav > li > a,
.bg-black .navi .nav > li > a,
.bg-light .navi .nav > li > a,
.bg-white .navi .nav > li > a {
    color: var(--text-secondary) !important;
    background: transparent !important;
    border-left: 3px solid transparent !important;
    padding: 12px 24px !important;
}

.navi .nav > li > a:hover,
.bg-dark .navi .nav > li > a:hover,
.bg-primary .navi .nav > li > a:hover,
.bg-black .navi .nav > li > a:hover,
.bg-light .navi .nav > li > a:hover,
.bg-white .navi .nav > li > a:hover {
    color: var(--text-primary) !important;
    background: var(--bg-tertiary) !important;
    border-left: 3px solid transparent !important;
}

.navi .nav > li.active > a,
.bg-dark .navi .nav > li.active > a,
.bg-primary .navi .nav > li.active > a,
.bg-black .navi .nav > li.active > a,
.bg-light .navi .nav > li.active > a,
.bg-white .navi .nav > li.active > a {
    color: var(--primary-color) !important;
    background: rgba(59, 130, 246, 0.1) !important;
    border-left: 3px solid var(--primary-color) !important;
}

.navi .nav > li > .nav-sub > li > a,
.bg-dark .navi .nav > li > .nav-sub > li > a,
.bg-primary .navi .nav > li > .nav-sub > li > a,
.bg-black .navi .nav > li > .nav-sub > li > a,
.bg-light .navi .nav > li > .nav-sub > li > a,
.bg-white .navi .nav > li > .nav-sub > li > a {
    color: var(--text-secondary) !important;
    background: transparent !important;
    border-left: none !important;
    padding-left: 60px !important;
}

.navi .nav > li > .nav-sub > li > a:hover,
.bg-dark .navi .nav > li > .nav-sub > li > a:hover,
.bg-primary .navi .nav > li > .nav-sub > li > a:hover,
.bg-black .navi .nav > li > .nav-sub > li > a:hover,
.bg-light .navi .nav > li > .nav-sub > li > a:hover,
.bg-white .navi .nav > li > .nav-sub > li > a:hover {
    color: var(--text-primary) !important;
    background: rgba(0, 0, 0, 0.05) !important;
}

.navi .nav > li > .nav-sub > li.active > a,
.bg-dark .navi .nav > li > .nav-sub > li.active > a,
.bg-primary .navi .nav > li > .nav-sub > li.active > a,
.bg-black .navi .nav > li > .nav-sub > li.active > a,
.bg-light .navi .nav > li > .nav-sub > li.active > a,
.bg-white .navi .nav > li > .nav-sub > li.active > a {
    color: var(--primary-color) !important;
    background: rgba(59, 130, 246, 0.05) !important;
}

.navi .nav > li > a > i {
    width: 24px;
    margin-right: 12px;
    font-size: 18px;
    text-align: center;
}

.navi .nav > li > a .pull-right {
    margin-left: auto;
    font-size: 14px;
}

.hidden-folded {
    display: block;
}

.app-aside-folded .hidden-folded {
    display: none;
}

.nav-sub {
    background: var(--bg-tertiary);
    padding: 8px 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: all var(--transition-normal);
}

.nav-sub.open {
    max-height: 500px;
    opacity: 1;
}

.nav-sub li a {
    padding-left: 60px !important;
    font-size: 14px;
}

.app-content {
    margin-left: 260px;
    min-height: 100vh;
    transition: margin-left var(--transition-normal);
}

.app-aside-folded .app-content {
    margin-left: 72px;
}

.app-content-body {
    padding: 24px;
}

.bg-light.lter.b-b.wrapper-sm {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 24px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    margin: 0;
    list-style: none;
    background: none;
    padding: 0;
}

.breadcrumb li {
    display: flex;
    align-items: center;
    color: var(--text-secondary);
}

.breadcrumb li a {
    color: var(--text-secondary);
    text-decoration: none;
}

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

.breadcrumb > li + li:before {
    content: "/";
    padding: 0 8px;
    color: var(--text-muted);
}

.breadcrumb > .active {
    color: var(--text-primary);
    font-weight: 500;
}

.panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
}

.panel-heading {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    background: var(--bg-secondary);
}

.panel-heading.font-bold {
    font-weight: 600;
}

.panel-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.panel-body {
    padding: 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-xs {
    padding: 4px 10px;
    font-size: 12px;
}

.btn-default {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-default:hover {
    background: var(--border-color);
}

.btn-primary {
    background: var(--primary-color);
    color: #000000;
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background: #ffffff;
    border-color: #888888;
    color: #000000;
}

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

.btn-success:hover {
    background: #0da368;
}

.btn-info {
    background: var(--info-color);
    color: white;
    border-color: var(--info-color);
}

.btn-warning {
    background: var(--warning-color);
    color: white;
    border-color: var(--warning-color);
}

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

.btn-block {
    width: 100%;
}

.btn.form-control {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

input[type="submit"].btn.form-control {
    height: 40px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.input-group {
    display: flex;
}

.input-group-addon {
    display: flex;
    align-items: center;
    padding: 10px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    color: var(--text-secondary);
    font-size: 14px;
    white-space: nowrap;
}

.input-group .form-control {
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    border-left: none;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table > thead > tr > th,
.table > tbody > tr > th,
.table > tfoot > tr > th {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 2px solid var(--border-color);
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.table > thead > tr > td,
.table > tbody > tr > td,
.table > tfoot > tr > td {
    padding: 12px 16px;
    border-top: 1px solid var(--border-color);
    color: var(--text-primary);
}

.table-striped > tbody > tr:nth-child(odd) > td,
.table-striped > tbody > tr:nth-child(odd) > th {
    background-color: var(--bg-tertiary);
}

.list-group {
    border-radius: var(--radius-md);
}

.list-group-item {
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

.list-group-item:first-child {
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.list-group-item:last-child {
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.alert {
    padding: 16px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
}

.alert-danger {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -12px;
}

.col-lg-12, .col-md-12, .col-sm-12,
.col-lg-6, .col-md-6, .col-sm-6,
.col-xs-4 {
    padding: 0 12px;
}

.col-xs-4 {
    width: 33.333333%;
}

.col-lg-12, .col-md-12, .col-sm-12 {
    width: 100%;
}

@media (min-width: 768px) {
    .col-sm-6 {
        width: 50%;
    }
}

@media (min-width: 992px) {
    .col-md-6 {
        width: 50%;
    }
}

@media (min-width: 1200px) {
    .col-lg-6 {
        width: 50%;
    }
}

.img-circle {
    border-radius: 50%;
}

.img-thumbnail {
    padding: 4px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

marquee {
    color: var(--text-secondary);
}

@media (max-width: 991px) {
    .navbar-collapse {
        margin-left: 0;
    }

    .app-aside {
        transform: translateX(-100%);
    }

    .app-content {
        margin-left: 0;
    }

    .off-screen .app-aside {
        transform: translateX(0);
    }

    .navbar-header {
        width: auto;
    }
}

@media (max-width: 767px) {
    .app-header {
        padding: 0 16px;
    }

    .app-content-body {
        padding: 16px;
    }

    .col-xs-4 {
        width: 100%;
        margin-bottom: 12px;
    }
}