:root {
    /* 玻璃拟态色彩系统 */
    --primary-color: #667eea;
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-color: #f093fb;
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --accent-color: #4facfe;
    --accent-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);

    /* 背景渐变 */
    --bg-gradient: linear-gradient(135deg, #d6e6f2 0%, #f5f7fa 100%);
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.8);
    --glass-shadow: rgba(0, 0, 0, 0.1);

    /* 文字颜色 */
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --text-light: #a0aec0;

    /* 状态颜色 */
    --success-color: #48bb78;
    --warning-color: #ed8936;
    --error-color: #f56565;
    --info-color: #4299e1;

    /* 标签颜色 */
    --tag-work: #667eea;
    --tag-personal: #f093fb;
    --tag-urgent: #ff6b6b;

    /* 间距系统 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* 阴影系统 */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.1);

    /* 圆角系统 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;

    /* 过渡动画 */
    --transition-fast: 0.15s ease-out;
    --transition-base: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;

    /* 模糊效果 */
    --blur-sm: blur(4px);
    --blur-md: blur(8px);
    --blur-lg: blur(12px);
    --blur-xl: blur(16px);
}

/* 基础重置和全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-gradient);
    background-attachment: fixed;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 玻璃拟态核心样式 */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--blur-lg);
    -webkit-backdrop-filter: var(--blur-lg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-glass);
    transition: all var(--transition-base);
}

.glass-card:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.glass-input {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: var(--blur-md);
    -webkit-backdrop-filter: var(--blur-md);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: inherit;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: all var(--transition-base);
    outline: none;
    width: 100%;
}

.glass-input:focus {
    background: rgba(255, 255, 255, 0.8);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

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

.glass-btn {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: var(--blur-md);
    -webkit-backdrop-filter: var(--blur-md);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: inherit;
    font-size: 0.875rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.glass-btn:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.glass-btn svg {
    width: 1rem;
    height: 1rem;
}

/* 主要按钮样式 */
.primary-btn {
    background: var(--primary-gradient);
    border: none;
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    color: white;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-md);
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.primary-btn svg {
    width: 1rem;
    height: 1rem;
}

.secondary-btn {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: var(--blur-md);
    -webkit-backdrop-filter: var(--blur-md);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.secondary-btn:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* 应用容器 */
.app-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: 100vh;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
}

/* 侧边栏样式 */
.sidebar {
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    height: fit-content;
    min-height: calc(100vh - 3rem);
    position: sticky;
    top: var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.6);
}

.logo-icon {
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    color: white;
}

.logo-icon svg {
    width: 1.25rem;
    height: 1.25rem;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.nav-section {
    margin-bottom: var(--spacing-xl);
}

.nav-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

.nav-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.875rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: left;
    width: 100%;
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.6);
    color: var(--text-primary);
}

.nav-btn.active {
    background: var(--primary-gradient);
    color: white;
    font-weight: 500;
}

.nav-btn svg {
    width: 1.125rem;
    height: 1.125rem;
}

.tag-filters {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.tag-filter {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.tag-filter:hover {
    background: rgba(255, 255, 255, 0.6);
    color: var(--text-primary);
}

.tag-filter.active {
    background: rgba(255, 255, 255, 0.8);
    color: var(--text-primary);
    font-weight: 500;
}

.tag-color {
    width: 0.75rem;
    height: 0.75rem;
    border-radius: 50%;
    flex-shrink: 0;
}

.sidebar-footer {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.6);
}

/* 主内容区样式 */
.main-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    min-height: calc(100vh - 3rem);
}

/* 顶部操作栏 */
.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    gap: var(--spacing-lg);
}

.search-container {
    position: relative;
    flex: 1;
    max-width: 400px;
}

.search-input {
    padding-right: 2.5rem;
}

.search-icon {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    width: 1rem;
    height: 1rem;
    color: var(--text-muted);
    pointer-events: none;
}

/* 视图容器 */
.view-container {
    flex: 1;
    transition: all var(--transition-base);
}

.view-container.hidden {
    display: none;
}

/* 看板视图 */
.kanban-board {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    height: 100%;
}

.kanban-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.column-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.column-icon {
    font-size: 1.25rem;
}

.task-count {
    background: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    margin-left: auto;
}

.tasks-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    min-height: 200px;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.3);
    border: 2px dashed rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.tasks-container.drag-over {
    border-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.1);
}

.add-task-column {
    margin-top: var(--spacing-md);
    justify-content: center;
}

/* 任务卡片 */
.task-card {
    background: var(--glass-bg);
    backdrop-filter: var(--blur-lg);
    -webkit-backdrop-filter: var(--blur-lg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
}

.task-card:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.task-card.dragging {
    opacity: 0.8;
    transform: rotate(5deg);
    z-index: 1000;
}

.task-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.task-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
}

.task-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.4;
    flex: 1;
    margin-right: var(--spacing-sm);
}

.task-menu {
    position: relative;
}

.task-menu-btn {
    padding: var(--spacing-xs);
    min-width: auto;
    width: 1.5rem;
    height: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

.task-menu-btn svg {
    width: 0.875rem;
    height: 0.875rem;
}

.task-menu-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 150px;
    padding: var(--spacing-xs);
    margin-top: var(--spacing-xs);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    z-index: 100;
}

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

.menu-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-sm);
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.menu-item:hover {
    background: rgba(255, 255, 255, 0.8);
    color: var(--text-primary);
}

.menu-item.delete-item:hover {
    background: rgba(245, 101, 101, 0.1);
    color: var(--error-color);
}

.menu-icon {
    font-size: 0.875rem;
}

.menu-divider {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.6);
    margin: var(--spacing-xs) 0;
}

.task-priority {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    flex-shrink: 0;
}

.task-priority.high {
    background: var(--error-color);
}

.task-priority.medium {
    background: var(--warning-color);
}

.task-priority.low {
    background: var(--success-color);
}

.task-description {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
}

.task-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
}

.task-tag {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.task-tag .tag-color {
    width: 0.5rem;
    height: 0.5rem;
}

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

.task-due-date.overdue {
    color: var(--error-color);
    font-weight: 500;
}

/* 列表视图 */
.list-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.list-header {
    padding: var(--spacing-lg);
}

.list-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.sort-select {
    min-width: 150px;
}

.tasks-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* 统计视图 */
.stats-container {
    padding: var(--spacing-lg);
}

.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.stat-card {
    padding: var(--spacing-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.stat-icon {
    font-size: 2rem;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-gradient);
    border-radius: var(--radius-lg);
}

.stat-info h3 {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* 模态框 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: var(--blur-sm);
    -webkit-backdrop-filter: var(--blur-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: all var(--transition-base);
}

.modal-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal {
    width: 100%;
    max-width: 500px;
    margin: var(--spacing-lg);
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn var(--transition-base);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.6);
}

.modal-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.close-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.6);
}

.close-btn svg {
    width: 1.25rem;
    height: 1.25rem;
}

.modal-content {
    padding: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.modal-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.6);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .app-container {
        grid-template-columns: 250px 1fr;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }

    .kanban-board {
        gap: var(--spacing-md);
    }

    .top-bar {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-md);
    }

    .search-container {
        max-width: none;
    }
}

@media (max-width: 768px) {
    .app-container {
        grid-template-columns: 1fr;
        padding: var(--spacing-sm);
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: 280px;
        height: 100vh;
        z-index: 100;
        transform: translateX(-100%);
        transition: transform var(--transition-base);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .kanban-board {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .stats-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .modal {
        margin: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .stats-cards {
        grid-template-columns: 1fr;
    }

    .top-bar {
        padding: var(--spacing-md);
    }

    .modal-actions {
        flex-direction: column;
    }
}

/* 工具提示 */
.tooltip {
    position: relative;
}

.tooltip::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-fast);
    z-index: 1000;
}

.tooltip:hover::before {
    opacity: 1;
    transform: translateX(-50%) translateY(-4px);
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.6);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.8);
}

/* 选择文本样式 */
::selection {
    background: rgba(102, 126, 234, 0.2);
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 空状态 */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    text-align: center;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.empty-state p {
    font-size: 0.875rem;
    max-width: 300px;
}

/* 可访问性 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-gradient: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
        --glass-bg: rgba(45, 55, 72, 0.7);
        --glass-border: rgba(113, 128, 150, 0.3);
        --text-primary: #f7fafc;
        --text-secondary: #e2e8f0;
        --text-muted: #a0aec0;
        --text-light: #718096;
    }
}

/* 导入导出模态框样式 */
.import-export-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.6);
}

.import-export-section h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.import-export-section p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.danger-btn {
    background: rgba(245, 101, 101, 0.1) !important;
    border-color: rgba(245, 101, 101, 0.3) !important;
    color: var(--error-color) !important;
}

.danger-btn:hover {
    background: rgba(245, 101, 101, 0.2) !important;
    border-color: var(--error-color) !important;
}

/* 通知样式 */
.notification {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    min-width: 300px;
    max-width: 400px;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 1100;
    animation: slideInRight var(--transition-base);
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.notification-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
}

.notification-icon {
    font-size: 1.125rem;
}

.notification-message {
    font-size: 0.875rem;
    color: var(--text-primary);
}

.notification-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.25rem;
    padding: var(--spacing-xs);
    margin-left: var(--spacing-md);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.notification-close:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.6);
}

.notification-success {
    border-left: 3px solid var(--success-color);
}

.notification-error {
    border-left: 3px solid var(--error-color);
}

.notification-info {
    border-left: 3px solid var(--info-color);
}