* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-size: 13px;
}

code {
    background-color: #000a2008;
    border-color: #0000000d;
    border-radius: 5px;
    border-width: 1px;
    color: var(--text-secondary);
    font-family: Menlo, sans-serif;
    font-size: .75rem;
    line-height: 1rem;
    padding: .125rem;
    white-space: pre-wrap;
}

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #ffffff;
    --bg-panel: #ffffff;
    --bg-input: #ffffff;
    --text-primary: #262626;
    --text-secondary: #8c8c8c;
    --text-accent: #1890ff;
    --border-color: #e8e8e8;
    --success-color: #52c41a;
    --error-color: #ff4d4f;
    --loading-color: #1890ff;
    --warning-color: #faad14;
    --difficulty-easy: #52c41a;
    --difficulty-medium: #faad14;
    --difficulty-hard: #ff4d4f;
    --hover-bg: #f0f0f0;
    --active-bg: #e6e6e6;
    --disabled-bg: #f5f5f5;
    --disabled-text: #bfbfbf;
}

body.theme-dark {
    --bg-primary: #1a1a1a;
    --bg-secondary: #242424;
    --bg-panel: #1a1a1a;
    --bg-input: #2a2a2a;
    --text-primary: #e8e8e8;
    --text-secondary: #a0a0a0;
    --text-accent: #40a9ff;
    --border-color: #404040;
    --success-color: #73d13d;
    --error-color: #ff7875;
    --loading-color: #40a9ff;
    --warning-color: #ffc53d;
    --difficulty-easy: #73d13d;
    --difficulty-medium: #ffc53d;
    --difficulty-hard: #ff7875;
    --hover-bg: #2a2a2a;
    --active-bg: #333333;
    --disabled-bg: #242424;
    --disabled-text: #595959;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 1400px;
}

ul{
    padding-left: 20px;
}

.top-nav {
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border-color);
    padding: 0 16px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.top-nav-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.top-nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.container{
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.header{
    width: 100%;
    height: 68px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    padding-right: 24px;
    border-bottom: 1px solid var(--border-color);
}

.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
    height: 100vh;
}

.left-panel {
    width: 30%;
    min-width: 20%;
    /* max-width: 80%; */
    flex: 0 0 auto;
    background: var(--bg-panel);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.header-left-panel {
    /* padding: 12px 16px; */
    /* border-bottom: 1px solid var(--border-color); */
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-center-panel{
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.left-panel-nav {
    display: flex;
    gap: 8px;
    padding: 0 20px;
    border-bottom: 1px solid var(--border-color);
}

.tab-item {
    padding: 12px 16px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.tab-item:hover {
    color: var(--text-primary);
}

.tab-item.active {
    color: var(--text-accent);
    border-bottom-color: var(--text-accent);
}

.tab-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.alarm{
    width: 48px;
    height: 48px;
}

.problem-title {
    height: 43px;
    line-height: 43px;
    font-size: 24px;
    font-weight: 500;
    color: var(--text-primary);
    position: relative;
    padding-left: 22px;
    margin-right: 20px;
}

.problem-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 43px;
    background: #0066FF;
    border-radius: 2px 0px 0px 2px;
}

.countdown-timer {
    font-size: 32px;
    font-weight: bold;
    margin: 0;
    color: #CF0909;
}

.problem-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.difficulty-tag {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.difficulty-easy {
    background: rgba(82, 196, 26, 0.1);
    color: var(--difficulty-easy);
}

.difficulty-medium {
    background: rgba(250, 173, 20, 0.1);
    color: var(--difficulty-medium);
}

.difficulty-hard {
    background: rgba(255, 77, 79, 0.1);
    color: var(--difficulty-hard);
}

.problem-description {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.problem-description p, .problem-description pre {
    font-size: 16px;
}

.problem-description pre {
    color: var(--text-secondary);
}

.problem-description pre strong{
    color: var(--text-primary);
}

.problem-description li{
    line-height: 3em;
}


.problem-description li code, .problem-description li strong {
    font-size: 14px;
}

.example-section {
    margin-bottom: 24px;
}

.example-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.example-box {
    background: var(--bg-secondary);
    border-radius: 4px;
    padding: 12px;
    margin-bottom: 8px;
}

.example-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.example-code {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
    color: var(--text-primary);
}

.constraints-section {
    margin-top: 24px;
}

.constraints-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.constraints-list {
    list-style: none;
    padding-left: 0;
}

.constraints-list li {
    margin-bottom: 8px;
    font-size: 13px;
    color: var(--text-primary);
    line-height: 1.6;
}

.action-buttons {
    display: flex;
    gap: 8px;
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.action-btn-icon {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px;
    font-size: 16px;
    transition: color 0.2s;
}

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

.panel-resizer {
    position: relative;
    width: 8px;
    flex-shrink: 0;
    background: var(--border-color);
    cursor: col-resize;
    transition: background 0.2s;
}

.panel-resizer:hover {
    background: var(--text-accent);
    opacity: 0.6;
}

.panel-resizer::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    margin-left: -1px;
    background: var(--border-color);
}

.panel-resizer:hover::after {
    background: var(--text-accent);
}

.right-panel {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-panel);
}

.editor-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    /* padding: 8px 16px; */
    /* border-bottom: 1px solid var(--border-color); */
    /* background: var(--bg-panel); */
}

.editor-toolbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.editor-tab {
    padding: 8px 16px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
}

.editor-tab.active {
    color: var(--text-accent);
    border-bottom-color: var(--text-accent);
}

.editor-toolbar-right {
    display: flex;
    align-items: center;
    gap: 24px;
}

.editor-select {
    width: 140px;
    height: 40px;
    padding: 8px 12px;
    background: #FFFFFF;
    border-radius: 8px;
    border: 1px solid #E8EAF0;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
}

.editor-select:focus {
    outline: none;
    border-color: var(--text-accent);
}

.submit-btn {
    /* background: var(--text-accent); */
    color: white;
    border: none;
    /* padding: 6px 16px; */
    /* border-radius: 4px; */
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;

    width: 72px;
    height: 40px;
    background: #2B50ED;
    border-radius: 8px;
}

/* .submit-btn:hover {
    background: var(--hover-bg);
    filter: brightness(1.1);
}

.submit-btn:active {
    background: var(--active-bg);
    filter: brightness(1.05);
}

.submit-btn:disabled {
    background: var(--disabled-bg);
    color: var(--disabled-text);
    cursor: not-allowed;
} */

.code-editor-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.code-editor-header {
    display: flex;
    align-items: center;
    padding: 8px 12px;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border-color);
}

.run-code-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    color: white;
    border: none;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s;
    width: 72px;
    height: 40px;
    background: #0066FF;
    border-radius: 8px;
}

.run-code-btn:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(24, 144, 255, 0.3);
}

.run-code-btn:active {
    filter: brightness(1.05);
    transform: translateY(0);
}

.run-code-btn:disabled {
    background: var(--disabled-bg);
    color: var(--disabled-text);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.run-icon {
    display: block;
}

.code-editor {
    flex: 1;
    padding: 16px;
    border: none;
    outline: none;
    background: var(--bg-input);
    color: var(--text-primary);
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
    resize: none;
    overflow-y: auto;
}

/* CodeMirror 容器与图片一致的语法高亮：关键字蓝、类型名浅蓝/青 */
.code-editor-container #code-editor-wrap {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}
.code-editor-container #code-editor-wrap .CodeMirror {
    flex: 1;
    height: auto !important;
    min-height: 200px;
    font-size: 16px;
    line-height: 1.6;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    background: var(--bg-input);
}
.code-editor-container .CodeMirror-gutters {
    min-height: 100%;
}
.CodeMirror-gutters {
    border-right: 1px solid var(--border-color);
    background: var(--bg-secondary);
}
.CodeMirror-linenumber { color: var(--text-secondary); }
/* 关键字：class, public, int 等 -> 蓝色 */
.cm-s-default .cm-keyword { color: #0000ff; }
/* 类型/类名：Solution, vector 等 -> 浅蓝/青色 */
.cm-s-default .cm-def { color: #069; }
.cm-s-default .cm-type { color: #069; }
.cm-s-default .cm-variable-2 { color: #069; }
.cm-s-default .cm-variable-3 { color: #069; }
/* 字符串 */
.cm-s-default .cm-string { color: #008000; }
.cm-s-default .cm-string-2 { color: #008000; }
/* 数字 */
.cm-s-default .cm-number { color: #008080; }
/* 注释 */
.cm-s-default .cm-comment { color: #008000; }
/* 其余（函数名、变量、运算符）保持默认深色 */
.cm-s-default .cm-variable { color: var(--text-primary); }
.cm-s-default .cm-operator { color: var(--text-primary); }
.cm-s-default .cm-property { color: var(--text-primary); }

/* 暗黑主题 CodeMirror 语法高亮 */
body.theme-dark .CodeMirror {
    background: var(--bg-input);
}
body.theme-dark .CodeMirror-gutters {
    background: var(--bg-secondary);
    border-right-color: var(--border-color);
}
body.theme-dark .CodeMirror-linenumber { color: var(--text-secondary); }
body.theme-dark .cm-s-default .cm-keyword { color: #569cd6; }
body.theme-dark .cm-s-default .cm-def,
body.theme-dark .cm-s-default .cm-type,
body.theme-dark .cm-s-default .cm-variable-2 { color: #4ec9b0; }
body.theme-dark .cm-s-default .cm-string { color: #ce9178; }
body.theme-dark .cm-s-default .cm-string-2 { color: #ce9178; }
body.theme-dark .cm-s-default .cm-number { color: #b5cea8; }
body.theme-dark .cm-s-default .cm-comment { color: #6a9955; }
body.theme-dark .cm-s-default .cm-variable,
body.theme-dark .cm-s-default .cm-operator,
body.theme-dark .cm-s-default .cm-property { color: #d4d4d4; }

.test-panel {
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex: 1;
    overflow: hidden;
}

.test-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-panel);
}

.test-tab {
    padding: 8px 16px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;

    font-weight: 500;
    font-size: 16px;
    color: #626E80;
}

.test-tab:hover {
    color: var(--text-primary);
    background: var(--hover-bg);
}

.test-tab.active {
    color: var(--text-accent);
    border-bottom-color: var(--text-accent);
    background: var(--hover-bg);
}

.test-tab:disabled {
    color: var(--disabled-text);
    cursor: not-allowed;
}

.test-content {
    flex: 1;
    padding: 12px 16px;
    overflow-y: auto;
    background: var(--bg-input);
    font-size: 13px;
    /* line-height: 1.6; */
    display: flex;
    flex-direction: column;
}

#result-content {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    /* white-space: pre-wrap; */
}

.case-tabs-container {
    margin-bottom: 16px;
}

.case-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.case-tab {
    padding: 8px 15px;
    background: var(--bg-secondary);
    border: none;
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.case-tab:hover {
    background: var(--hover-bg);
}

.case-tab.active {
    background: var(--active-bg);
    color: var(--text-primary);
}

.case-add-btn {
    padding: 6px 12px;
    background: var(--bg-secondary);
    border: none;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
}

.case-add-btn:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

.case-tab-wrap {
    display: inline-flex;
    align-items: center;
    position: relative;
}

.case-tab-wrap .case-tab {
    margin: 0;
}

.case-delete-btn {
    position: absolute;
    top: -6px;
    right: -6px;
    width: 18px;
    height: 18px;
    padding: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-secondary);
    font-size: 12px;
    line-height: 1;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    z-index: 1;
}

.case-tab-wrap:hover .case-delete-btn {
    display: inline-flex;
}

.case-delete-btn:hover {
    color: var(--error-color);
    background: rgba(255, 77, 79, 0.15);
    border-color: rgba(255, 77, 79, 0.3);
}

.case-params {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.param-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.param-label {
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 500;
    min-width: 60px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.param-value {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 6px 12px;
    color: var(--text-primary);
    font-size: 13px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    flex: 1;
    min-width: 0;
    box-sizing: border-box;
    transition: all 0.2s;
}

.param-value:hover {
    border-color: var(--text-accent);
}

.param-value:focus {
    outline: none;
    border-color: var(--text-accent);
    box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.2);
}

.param-value:disabled {
    background: var(--disabled-bg);
    color: var(--disabled-text);
    cursor: not-allowed;
}

.param-item textarea.param-value {
    resize: vertical;
    min-height: 36px;
}

.result-header {
    display: flex;
    align-items: center;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin: 16px 0;
}

.result-status {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-right: 20px;
}

.status-indicator {
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 50%;
}

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

.status-error {
    background-color: var(--error-color);
}

.status-running {
    background-color: var(--warning-color);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0.4;
    }

    100% {
        opacity: 1;
    }
}

.status-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--success-color);
}

.status-text.error {
    color: var(--error-color);
}

.stats-container {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 0;
    background: none;
    border: none;
    font-size: 13px;
    color: var(--text-secondary);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

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

.stat-value {
    font-weight: 500;
    color: var(--text-primary);
}

.cases-container {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.case-badge {
    padding: 8px 15px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 12px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.2s;
}

.case-badge:hover {
    background: var(--hover-bg);
}

.case-badge.active {
    background: var(--active-bg);
    border-color: var(--text-accent);
    color: var(--text-accent);
}

.case-badge.success {
    background: rgba(82, 196, 26, 0.15);
    border-color: rgba(82, 196, 26, 0.4);
    color: var(--success-color);
}

.case-badge.success.active {
    background: rgba(82, 196, 26, 0.25);
    border-color: var(--success-color);
}

.case-badge.error {
    background: rgba(255, 77, 79, 0.15);
    border-color: rgba(255, 77, 79, 0.4);
    color: var(--error-color);
}

.case-badge.error.active {
    background: rgba(255, 77, 79, 0.25);
    border-color: var(--error-color);
}

.case-badge .check-icon {
    width: 12px;
    height: 12px;
    fill: currentColor;
}

.case-badge .error-icon {
    width: 12px;
    height: 12px;
    fill: currentColor;
}

.input-output-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.io-section {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 16px;
}

.io-title {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    margin: 0;
}

.input-params {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-param-item {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 10px 12px;
    color: var(--text-primary);
    font-size: 13px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

.output-content {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 10px 12px;
    color: var(--text-primary);
    font-size: 13px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    white-space: pre-wrap;
}

.output-content.error {
    color: var(--error-color);
}

.expected-content {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 10px 12px;
    color: var(--text-primary);
    font-size: 13px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    white-space: pre-wrap;
}

.output.success {
    color: var(--success-color);
}

.output.error {
    color: var(--error-color);
}

.status-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 16px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    font-size: 12px;
    color: var(--text-secondary);
}

/* 美化滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--text-secondary);
    border-radius: 4px;
    transition: background 0.2s;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-primary);
}

/* 暗黑主题滚动条 */
body.theme-dark ::-webkit-scrollbar-thumb {
    background: #595959;
}

body.theme-dark ::-webkit-scrollbar-thumb:hover {
    background: #8c8c8c;
}

/* @media (max-width: 1024px) {
    .main-content {
        flex-direction: column;
    }

    .panel-resizer {
        display: none;
    }

    .left-panel {
        width: 100% !important;
        height: 50%;
    }

    .right-panel {
        height: 50%;
    }
} */

/* 暗黑主题特定优化 */
body.theme-dark .example-box {
    background: var(--bg-input);
    border-color: var(--border-color);
}

body.theme-dark .example-label {
    color: var(--text-secondary);
}

body.theme-dark .example-code {
    color: var(--text-primary);
}

body.theme-dark .constraints-list li {
    color: var(--text-primary);
}

body.theme-dark .action-btn-icon {
    color: var(--text-secondary);
}

body.theme-dark .action-btn-icon:hover {
    color: var(--text-primary);
}

body.theme-dark .panel-resizer {
    background: var(--border-color);
}

body.theme-dark .panel-resizer:hover {
    background: var(--text-accent);
}

body.theme-dark .panel-resizer::after {
    background: var(--border-color);
}

body.theme-dark .panel-resizer:hover::after {
    background: var(--text-accent);
}

body.theme-dark .editor-select {
    background: var(--bg-input);
    border-color: var(--border-color);
    color: var(--text-primary);
}

body.theme-dark .editor-select:hover {
    border-color: var(--text-accent);
}

body.theme-dark .editor-select:focus {
    border-color: var(--text-accent);
    box-shadow: 0 0 0 2px rgba(24, 144, 255, 0.2);
}

body.theme-dark .problem-description {
    color: var(--text-primary);
}

body.theme-dark .problem-description pre {
    color: var(--text-secondary);
}

body.theme-dark .problem-description pre strong {
    color: var(--text-primary);
}

body.theme-dark .problem-description li {
    color: var(--text-primary);
}

body.theme-dark .problem-description li code,
body.theme-dark .problem-description li strong {
    color: var(--text-primary);
}

body.theme-dark .difficulty-tag {
    color: var(--text-primary);
}

body.theme-dark .example-title {
    color: var(--text-primary);
}

body.theme-dark .constraints-title {
    color: var(--text-primary);
}

body.theme-dark .problem-title {
    color: var(--text-primary);
}

body.theme-dark .tab-item {
    color: var(--text-secondary);
}

body.theme-dark .tab-item:hover {
    color: var(--text-primary);
}

body.theme-dark .tab-item.active {
    color: var(--text-accent);
}

body.theme-dark .editor-tab {
    color: var(--text-secondary);
}

body.theme-dark .editor-tab.active {
    color: var(--text-accent);
}

body.theme-dark .case-delete-btn {
    background: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-secondary);
}

body.theme-dark .case-delete-btn:hover {
    color: var(--error-color);
    background: rgba(255, 77, 79, 0.15);
    border-color: rgba(255, 77, 79, 0.3);
}