/* 响应式设计 */

/* 大屏幕 (1200px+) */
@media (min-width: 1200px) {
    .main-content {
        padding: 30px;
    }
    
    .ideas-grid {
        grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    }
    
    .categories-grid {
        grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 中等屏幕 (768px - 1199px) */
@media (max-width: 1199px) {
    .nav-container {
        padding: 0 15px;
    }
    
    .main-content {
        padding: 20px 15px;
    }
    
    .ideas-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        gap: 15px;
    }
    
    .categories-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .modal-content {
        max-width: 90%;
    }
}

/* 小屏幕 (576px - 767px) */
@media (max-width: 767px) {
    /* 导航栏 */
    .nav-container {
        flex-direction: column;
        height: auto;
        padding: 10px;
        gap: 10px;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }
    
    .nav-item {
        padding: 6px 12px;
        font-size: 0.85rem;
    }
    
    .brand-text {
        display: none;
    }
    
    /* 主内容 */
    .main-content {
        padding: 15px 10px;
        min-height: calc(100vh - 100px);
    }
    
    /* 页面标题 */
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
        margin-bottom: 20px;
    }
    
    .page-title {
        font-size: 1.5rem;
    }
    
    .page-actions {
        width: 100%;
        justify-content: stretch;
    }
    
    .page-actions .btn {
        flex: 1;
        justify-content: center;
    }
    
    /* 过滤器 */
    .filters {
        flex-direction: column;
        align-items: stretch;
        gap: 15px;
        padding: 15px;
    }
    
    .filter-group {
        width: 100%;
    }
    
    .filter-input {
        min-width: auto;
        width: 100%;
    }
    
    .search-box {
        min-width: auto;
        width: 100%;
    }
    
    /* 网格布局 */
    .ideas-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    /* 卡片 */
    .idea-card,
    .task-item,
    .category-card {
        padding: 15px;
    }
    
    .idea-header,
    .task-header,
    .category-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .idea-actions,
    .task-actions {
        opacity: 1;
        width: 100%;
        justify-content: flex-end;
    }
    
    .idea-meta,
    .task-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .idea-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .idea-stats {
        width: 100%;
        justify-content: space-between;
    }
    
    /* 任务标题 */
    .task-title {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .task-checkbox {
        align-self: flex-start;
    }
    
    /* 分类统计 */
    .category-stats {
        grid-template-columns: 1fr;
    }
    
    /* 表单 */
    .form-row {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .form-actions {
        flex-direction: column;
        gap: 10px;
    }
    
    .form-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    /* 模态框 */
    .modal {
        padding: 10px;
    }
    
    .modal-content {
        max-width: 100%;
        max-height: 95vh;
    }
    
    .modal-header,
    .modal-body {
        padding: 20px 15px;
    }
    
    /* 进度统计 */
    .progress-overview {
        flex-direction: column;
        gap: 20px;
    }
    
    .progress-details {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* 想法信息 */
    .idea-info {
        grid-template-columns: 1fr;
    }
    
    /* 分页 */
    .pagination {
        flex-wrap: wrap;
        gap: 5px;
    }
    
    .pagination-info {
        width: 100%;
        text-align: center;
        margin: 10px 0;
    }
    
    /* Toast */
    .toast {
        right: 10px;
        left: 10px;
        min-width: auto;
        max-width: none;
    }
    
    /* 颜色选择器 */
    .color-picker {
        grid-template-columns: repeat(6, 1fr);
    }
    
    .color-option {
        width: 25px;
        height: 25px;
    }
}

/* 超小屏幕 (最大575px) */
@media (max-width: 575px) {
    /* 导航栏 */
    .nav-container {
        padding: 8px;
    }
    
    .nav-menu {
        gap: 8px;
    }
    
    .nav-item {
        padding: 5px 10px;
        font-size: 0.8rem;
    }
    
    .btn-text {
        display: none;
    }
    
    .btn {
        padding: 8px;
        min-width: 36px;
        justify-content: center;
    }
    
    /* 主内容 */
    .main-content {
        padding: 10px 5px;
    }
    
    /* 页面标题 */
    .page-title {
        font-size: 1.3rem;
    }
    
    /* 卡片 */
    .idea-card,
    .task-item,
    .category-card,
    .stat-card {
        padding: 12px;
    }
    
    /* 想法详情 */
    .idea-detail-card {
        padding: 20px 15px;
    }
    
    .idea-detail-card .idea-content h1 {
        font-size: 1.4rem;
    }
    
    /* 进度圆环 */
    .progress-ring {
        width: 100px;
        height: 100px;
    }
    
    .progress-ring svg {
        width: 100px;
        height: 100px;
    }
    
    .progress-percentage {
        font-size: 1.2rem;
    }
    
    /* 统计卡片 */
    .stat-card h3 {
        font-size: 2rem;
    }
    
    /* 模态框 */
    .modal-header h2 {
        font-size: 1.1rem;
    }
    
    .modal-header,
    .modal-body {
        padding: 15px 12px;
    }
    
    /* 表单 */
    .form-group {
        margin-bottom: 15px;
    }
    
    .form-group label {
        font-size: 0.85rem;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 8px 10px;
        font-size: 0.9rem;
    }
    
    /* 进度详情 */
    .progress-details {
        grid-template-columns: 1fr;
    }
    
    /* 任务日期 */
    .task-dates {
        flex-direction: column;
        gap: 4px;
    }
    
    /* 空状态 */
    .empty-state {
        padding: 40px 15px;
    }
    
    .empty-icon {
        font-size: 3rem;
    }
    
    .empty-state h3 {
        font-size: 1.1rem;
    }
    
    .empty-state p {
        font-size: 0.9rem;
    }
    
    /* 颜色选择器 */
    .color-picker {
        grid-template-columns: repeat(5, 1fr);
    }
    
    .color-option {
        width: 22px;
        height: 22px;
    }
}

/* 横屏模式优化 */
@media (max-height: 500px) and (orientation: landscape) {
    .nav-container {
        height: 50px;
        padding: 0 15px;
    }
    
    .nav-menu {
        gap: 15px;
    }
    
    .main-content {
        min-height: calc(100vh - 50px);
        padding: 15px;
    }
    
    .modal-content {
        max-height: 85vh;
    }
    
    .page-header {
        margin-bottom: 15px;
    }
    
    .empty-state {
        padding: 30px 20px;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .idea-actions,
    .task-actions {
        opacity: 1;
    }
    
    .btn,
    .nav-item {
        min-height: 44px;
        min-width: 44px;
    }
    
    .task-checkbox {
        width: 20px;
        height: 20px;
    }
    
    .color-option {
        min-width: 32px;
        min-height: 32px;
    }
    
    .modal-close {
        min-width: 44px;
        min-height: 44px;
    }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
    .idea-card,
    .task-item,
    .category-card,
    .stat-card {
        border: 2px solid #333;
    }
    
    .btn {
        border: 2px solid currentColor;
    }
    
    .category-badge,
    .priority-badge,
    .status-badge {
        border: 1px solid currentColor;
    }
}

/* 减少动画模式 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .spinner {
        animation: none;
        border: 4px solid #667eea;
    }
}

/* 暗色主题支持 */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #1a1a1a;
        color: #e0e0e0;
    }
    
    .navbar {
        background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    }
    
    .idea-card,
    .task-item,
    .category-card,
    .stat-card,
    .modal-content,
    .filters,
    .chart-container {
        background: #2d2d2d;
        border-color: #404040;
        color: #e0e0e0;
    }
    
    .idea-text,
    .page-title,
    .section-header h2,
    .modal-header h2 {
        color: #f0f0f0;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea,
    .filter-input,
    .search-input {
        background: #3d3d3d;
        border-color: #555;
        color: #e0e0e0;
    }
    
    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
        border-color: #667eea;
        box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.3);
    }
    
    .tag {
        background: #404040;
        color: #c0c0c0;
        border-color: #555;
    }
    
    .toast {
        background: #2d2d2d;
        color: #e0e0e0;
    }
    
    .loading-indicator {
        background: rgba(26, 26, 26, 0.9);
    }
    
    .empty-state {
        color: #a0a0a0;
    }
    
    .pagination-btn {
        background: #3d3d3d;
        border-color: #555;
        color: #c0c0c0;
    }
    
    .pagination-btn:hover:not(:disabled) {
        background: #667eea;
        border-color: #667eea;
    }
}

/* 打印优化 */
@media print {
    @page {
        margin: 1cm;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .ideas-grid,
    .categories-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .idea-card,
    .task-item,
    .category-card {
        padding: 15px;
        margin-bottom: 10px;
    }
    
    .page-title {
        font-size: 18pt;
        margin-bottom: 15px;
    }
    
    .idea-text {
        font-size: 11pt;
    }
    
    .task-title h3 {
        font-size: 12pt;
    }
}

/* 可访问性增强 */
@media (prefers-reduced-transparency: reduce) {
    .modal {
        background: rgba(0, 0, 0, 0.8);
    }
    
    .navbar {
        background: #667eea;
    }
    
    .btn-primary {
        background: #667eea;
    }
}

/* 大字体支持 */
@media (min-resolution: 2dppx) {
    .btn-icon,
    .brand-icon {
        font-size: 1.1rem;
    }
    
    .empty-icon {
        font-size: 4.5rem;
    }
}

/* 窄屏幕优化 */
@media (max-width: 320px) {
    .main-content {
        padding: 8px 3px;
    }
    
    .idea-card,
    .task-item,
    .category-card {
        padding: 10px;
    }
    
    .page-title {
        font-size: 1.2rem;
    }
    
    .btn {
        padding: 6px;
        font-size: 0.8rem;
    }
    
    .modal-content {
        margin: 5px;
    }
    
    .progress-details {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .color-picker {
        grid-template-columns: repeat(4, 1fr);
    }
}