/* ============================================
   YouTube 监控后台 — YouTube Studio 风格
   左侧深色导航栏 · 红色主色调 · 卡片式布局
   ============================================ */

:root {
    --yt-red: #ff0000;
    --yt-red-dark: #cc0000;
    --sidebar-bg: #0f0f0f;
    --sidebar-hover: #272727;
    --sidebar-text: #f1f1f1;
    --sidebar-text-muted: #aaaaaa;
    --main-bg: #f9f9f9;
    --card-bg: #ffffff;
    --text-primary: #0f0f0f;
    --text-secondary: #606060;
    --text-muted: #909090;
    --border: #e5e5e5;
    --border-light: #f0f0f0;
    --shadow: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-hover: 0 1px 6px rgba(0,0,0,0.12);
    --radius: 12px;
    --radius-sm: 8px;
    --sidebar-width: 240px;
    --danger: #dc3545;
    --danger-bg: #fce8e6;
    --success: #137333;
    --success-bg: #e6f4ea;
    --warning: #b06000;
    --warning-bg: #fef7e0;
    --info: #1967d2;
    --info-bg: #e8f0fe;
    --tree-bg: #f8f9fa;
    --tree-border: #e8e8e8;
    --tree-hover: #f0f1f2;
    --tree-active-bg: #fff5f5;
    --tree-active-border: #ffcccc;
}

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

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--main-bg);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.5;
}

a { text-decoration: none; color: inherit; }

/* === Layout === */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* === Sidebar === */
.sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    z-index: 200;
    overflow-y: auto;
}

.sidebar-brand {
    padding: 18px 20px;
    border-bottom: 1px solid #272727;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-brand .yt-logo {
    width: 28px;
    height: 20px;
    flex-shrink: 0;
}

.sidebar-brand span {
    color: var(--sidebar-text);
    font-size: 16px;
    font-weight: 600;
    letter-spacing: -0.3px;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 8px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 10px 12px;
    border-radius: 10px;
    color: var(--sidebar-text);
    font-size: 14px;
    transition: background 0.12s;
}

.sidebar-nav a:hover {
    background: var(--sidebar-hover);
}

.sidebar-nav a.active {
    background: var(--sidebar-hover);
    font-weight: 500;
}

.sidebar-nav a svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: 12px 8px;
    border-top: 1px solid #272727;
}

.sidebar-user {
    padding: 8px 12px;
    color: var(--sidebar-text);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 4px;
}

.sidebar-user .avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--yt-red);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 14px;
    font-weight: 600;
    flex-shrink: 0;
}

.sidebar-user .user-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sidebar-user .user-name {
    font-weight: 500;
}

.sidebar-user .sidebar-role {
    color: var(--sidebar-text-muted);
    font-size: 12px;
}

.sidebar-logout {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 10px 12px;
    border-radius: 10px;
    color: var(--sidebar-text-muted);
    font-size: 14px;
    transition: background 0.12s, color 0.12s;
}

.sidebar-logout:hover {
    background: var(--sidebar-hover);
    color: var(--sidebar-text);
}

.sidebar-logout svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}

/* === Main Content === */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 24px 32px;
    min-width: 0;
}

/* === Page Header === */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.page-header h2 {
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.3px;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 4px;
}

.header-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

/* === Stats Cards === */
.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    transition: box-shadow 0.2s, transform 0.2s;
    display: flex;
    align-items: center;
    gap: 20px;
}

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

.stat-card.primary .stat-icon {
    background: var(--danger-bg);
    color: var(--yt-red);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--info-bg);
    color: var(--info);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-body {
    flex: 1;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 13px;
    margin-bottom: 6px;
    font-weight: 500;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.stat-sub {
    color: var(--text-muted);
    font-size: 12px;
    margin-top: 4px;
}

/* === Sections === */
.section {
    margin-bottom: 32px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.section-header h3 {
    font-size: 18px;
    font-weight: 600;
}

/* === Operator Grid === */
.operator-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.operator-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: box-shadow 0.15s;
    position: relative;
}

.operator-card:hover {
    box-shadow: var(--shadow-hover);
}

.operator-name {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.operator-meta {
    color: var(--text-secondary);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.operator-team {
    display: inline-block;
    padding: 2px 8px;
    background: var(--info-bg);
    color: var(--info);
    border-radius: 4px;
    font-size: 12px;
    margin-bottom: 8px;
}

.operator-remark {
    color: var(--text-muted);
    font-size: 13px;
    margin-top: 8px;
}

.operator-actions {
    margin-top: 16px;
    display: flex;
    gap: 12px;
}

/* === Data Table === */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.data-table thead {
    background: #f8f9fa;
}

.data-table th {
    padding: 12px 16px;
    text-align: left;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-light);
    font-size: 14px;
}

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

.data-table tr:hover td {
    background: #fafbfc;
}

.data-table .num {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.data-table .empty-row {
    text-align: center;
    color: var(--text-muted);
    padding: 32px;
}

/* === Channel Link === */
.channel-link {
    color: var(--info);
    font-weight: 500;
}

.channel-link:hover {
    text-decoration: underline;
}

/* === Category Tag === */
.category-tag {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    color: white;
}

/* === Filter Bar === */
.filter-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.filter-bar select {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    background: white;
    color: var(--text-primary);
    cursor: pointer;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    font-family: inherit;
}

.btn-primary {
    background: var(--yt-red-dark);
    color: white;
}

.btn-primary:hover {
    background: var(--yt-red);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-outline:hover {
    background: #f8f9fa;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 13px;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.btn-link {
    background: none;
    border: none;
    color: var(--info);
    cursor: pointer;
    font-size: 14px;
    padding: 4px 8px;
    border-radius: 4px;
    font-family: inherit;
    transition: background 0.12s;
}

.btn-link:hover {
    background: #f1f3f4;
}

.btn-danger-link {
    color: var(--danger) !important;
}

/* === Badges === */
.badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 500;
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-danger  { background: var(--danger-bg);  color: var(--danger); }
.badge-muted   { background: #f1f3f4;           color: #5f6368; }
.badge-monetized { background: #fce8e6; color: #cc0000; font-weight: 600; }

/* === Checkbox Group === */
.checkbox-group {
    margin-top: 8px;
}

.checkbox-group label.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 10px 0;
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 400;
}

.checkbox-group label.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin: 0;
    flex-shrink: 0;
    cursor: pointer;
    accent-color: var(--yt-red);
}

.checkbox-group label.checkbox-label span {
    line-height: 1.4;
}

/* === Form Group in Modal === */
.modal .form-group {
    margin-bottom: 16px;
}

.modal .form-group > label:not(.checkbox-label) {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
}

/* === Custom Select === */
.custom-select-wrapper {
    position: relative;
    display: block;
}

.custom-select-wrapper select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    width: 100%;
    padding: 10px 36px 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.custom-select-wrapper::after {
    content: '';
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 14px;
    height: 14px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23606060' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    pointer-events: none;
    transition: transform 0.15s;
}

.custom-select-wrapper:hover::after {
    transform: translateY(-50%) rotate(180deg);
}

.custom-select-wrapper:hover select {
    border-color: var(--yt-red);
}

.custom-select-wrapper select:focus {
    outline: none;
    border-color: var(--yt-red);
    box-shadow: 0 0 0 3px rgba(255, 0, 0, 0.08);
}

select option {
    padding: 8px 12px;
    font-size: 14px;
    background: white;
    color: var(--text-primary);
}

select option:hover,
select option:focus {
    background: #fff5f5;
    color: var(--text-primary);
}

select option:checked {
    background: var(--yt-red);
    color: white;
}

select option[value="__new__"] {
    color: var(--yt-red);
    font-weight: 600;
}

/* === Forms === */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    background: white;
    color: var(--text-primary);
    transition: border-color 0.15s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--yt-red);
    box-shadow: 0 0 0 1px var(--yt-red);
}

.form-hint {
    display: block;
    margin-top: 4px;
    color: var(--text-muted);
    font-size: 12px;
}

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

/* === Modals === */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    z-index: 300;
    align-items: center;
    justify-content: center;
}

.modal {
    background: white;
    border-radius: var(--radius);
    padding: 28px;
    width: 90%;
    max-width: 480px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    max-height: 90vh;
    overflow-y: auto;
}

.modal h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 8px;
}

/* === Alerts === */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 14px;
}

.alert-error {
    background: var(--danger-bg);
    color: var(--danger);
}

.alert-success {
    background: var(--success-bg);
    color: var(--success);
}

/* === Tabs === */
.tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
}

.tab-btn {
    padding: 8px 20px;
    border: 1px solid var(--border);
    background: white;
    border-radius: 20px;
    cursor: pointer;
    font-size: 14px;
    font-family: inherit;
    color: var(--text-secondary);
    transition: all 0.15s;
}

.tab-btn.active {
    background: var(--text-primary);
    color: white;
    border-color: var(--text-primary);
}

/* === Charts === */
.chart-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 32px;
}

.chart-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}

.chart-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}

.chart-card canvas {
    max-height: 300px;
}

/* === Empty State === */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
    background: var(--card-bg);
    border-radius: var(--radius);
}

/* === Login === */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
}

.login-card {
    width: 90%;
    max-width: 400px;
    text-align: center;
}

.login-logo {
    margin-bottom: 24px;
}

.login-logo svg {
    width: 72px;
    height: 52px;
}

.login-card h1 {
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 8px;
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 28px;
}

.login-card .form-group {
    text-align: left;
}

.login-card .btn {
    margin-top: 12px;
}

.login-hint {
    color: var(--text-muted);
    font-size: 12px;
    margin-top: 20px;
}

/* === Category Grid === */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.category-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: box-shadow 0.15s;
}

.category-card:hover {
    box-shadow: var(--shadow-hover);
}

.category-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    color: white;
    margin-bottom: 8px;
}

.category-count {
    color: var(--text-secondary);
    font-size: 13px;
}

.category-actions {
    margin-top: 12px;
    display: flex;
    justify-content: center;
    gap: 12px;
}

/* === Color Picker === */
.color-picker-row {
    display: flex;
    align-items: center;
}

/* === Responsive === */
@media (max-width: 1024px) {
    .chart-section {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.2s;
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
        padding: 16px;
    }
    .stats-cards {
        grid-template-columns: 1fr;
    }
    .operator-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   Dashboard Tree Hierarchy Styles (Enhanced)
   ============================================ */

.tree-container {
    margin-top: 8px;
}

.tree-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.2s;
}

.tree-row:hover {
    background: var(--tree-hover);
}

.tree-toggle-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s;
    color: var(--text-muted);
    min-width: 18px;
}

/* 树层级标签徽章 */
.tree-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.tree-badge.team-badge {
    background: var(--info-bg);
    color: var(--info);
}

.tree-badge.operator-badge {
    background: #fce8e6;
    color: #cc0000;
}

.tree-team-header {
    background: var(--tree-bg);
    border: 1px solid var(--tree-border);
    margin-bottom: 4px;
    font-weight: 600;
    font-size: 15px;
}

.tree-team-label {
    flex: 1;
    color: var(--text-primary);
}

.tree-operator-header {
    padding-left: 36px;
    font-size: 14px;
    border-bottom: 1px solid var(--border-light);
}

.tree-operator-label {
    flex: 1;
    color: var(--text-secondary);
}

.tree-meta {
    font-size: 12px;
    color: var(--text-muted);
    margin-right: 12px;
}

.tree-daily {
    font-weight: 600;
    font-size: 15px;
    color: var(--yt-red);
    font-variant-numeric: tabular-nums;
}

.tree-team-content {
    margin-left: 4px;
    margin-bottom: 12px;
    border-left: 2px solid var(--tree-border);
}

.tree-operator-content {
    padding-left: 36px;
    padding-bottom: 8px;
}

/* 账号明细表面板 */
.account-table-panel {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-top: 12px;
}

.tree-account-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.tree-account-table th {
    text-align: left;
    padding: 10px 12px;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 12px;
    border-bottom: 1px solid var(--border);
    background: #f8f9fa;
}

.tree-account-table td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
}

.tree-account-table tr:last-child td {
    border-bottom: none;
}

.tree-account-table tr:hover td {
    background: #fafbfc;
}

.tree-account-table .daily-views {
    color: var(--yt-red);
    font-weight: 600;
}

.date-badge {
    display: inline-flex;
    align-items: center;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 6px 14px;
    background: #f1f3f4;
    border-radius: 20px;
}

/* === Chart Panel === */
.chart-panel {
    background: #fff;
    border: 1px solid var(--tree-border);
    border-radius: var(--radius);
    padding: 20px;
    margin: 12px 0 16px;
    box-shadow: var(--shadow);
}

/* 图表工具栏 */
.chart-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-light);
}

/* 视图切换 */
.chart-view-switch {
    display: inline-flex;
    gap: 0;
    background: #f1f3f4;
    border-radius: 8px;
    padding: 3px;
}

.view-btn {
    padding: 7px 16px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.15s;
    font-family: inherit;
}

.view-btn:hover {
    color: var(--text-primary);
}

.view-btn.active {
    background: #fff;
    color: var(--text-primary);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

/* 账号下拉框 */
.chart-account-select {
    display: inline-block;
}

.account-dropdown {
    padding: 7px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: white;
    font-size: 13px;
    font-family: inherit;
    color: var(--text-primary);
    cursor: pointer;
    min-width: 160px;
}

.account-dropdown:focus {
    outline: none;
    border-color: var(--yt-red);
    box-shadow: 0 0 0 2px rgba(255,0,0,0.1);
}

/* 时段 Tab */
.chart-tabs {
    display: flex;
    gap: 6px;
    margin-left: auto;
}

.chart-tab {
    padding: 6px 16px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: #fff;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
    font-family: inherit;
    font-weight: 500;
}

.chart-tab:hover {
    border-color: var(--yt-red);
    color: var(--yt-red);
}

.chart-tab.active {
    background: var(--yt-red);
    border-color: var(--yt-red);
    color: #fff;
}

.chart-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.chart-box {
    position: relative;
    height: 260px;
    background: #fafbfc;
    border-radius: var(--radius-sm);
    padding: 12px;
}

.chart-title {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: 12px;
    text-align: center;
    letter-spacing: 0.3px;
}

@media (max-width: 1024px) {
    .chart-toolbar {
        flex-direction: column;
        align-items: flex-start;
    }
    .chart-tabs {
        margin-left: 0;
    }
    .chart-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .chart-row {
        grid-template-columns: 1fr;
    }
    .chart-panel {
        padding: 14px;
    }
    .chart-box {
        height: 220px;
    }
}