/* 平板端样式 */
@media (min-width: 769px) and (max-width: 1024px) {
    .main-container {
        grid-template-columns: 200px 1fr;
    }
    
    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: var(--spacing-sm);
    }
    
    .search-section {
        max-width: 400px;
        margin: 0 var(--spacing-sm);
    }
}

/* 移动端样式 */
@media (max-width: 768px) {
    .header-content {
        padding: 0 var(--spacing-sm);
    }
    
    .site-title {
        display: none;
    }
    
    .search-section {
        margin: 0 var(--spacing-sm);
    }
    
    .main-container {
        grid-template-columns: 1fr;
        position: relative;
    }
    
    .sidebar {
        position: fixed;
        top: 60px;
        left: -240px;
        width: 240px;
        height: calc(100vh - 60px);
        z-index: 200;
        transition: var(--transition);
        box-shadow: var(--shadow-medium);
    }
    
    .sidebar.show {
        left: 0;
    }
    
    .main-content {
        padding: var(--spacing-sm);
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .content-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .modal-content {
        width: 95%;
        margin: var(--spacing-sm);
    }
    
    /* 移动端菜单按钮显示 */
    .menu-toggle {
        display: flex;
    }
}

/* 大屏幕优化 */
@media (min-width: 1025px) {
    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    }
    
    .menu-toggle {
        display: none;
    }
}

/* 超大屏幕 */
@media (min-width: 1400px) {
    .main-container {
        grid-template-columns: 280px 1fr;
    }
    
    .sidebar {
        padding: var(--spacing-lg);
    }
}

/* 小屏幕手机 */
@media (max-width: 480px) {
    .header-content {
        padding: 0 var(--spacing-xs);
    }
    
    .logo {
        width: 32px;
        height: 32px;
        font-size: 18px;
    }
    
    .search-input {
        font-size: 16px; /* 防止iOS缩放 */
    }
    
    .main-content {
        padding: var(--spacing-xs);
    }
    
    .tool-card {
        padding: var(--spacing-sm);
    }
    
    .modal-content {
        width: 98%;
        margin: var(--spacing-xs);
    }
}

/* 横屏模式优化 */
@media (max-height: 600px) and (orientation: landscape) {
    .sidebar {
        height: calc(100vh - 60px);
    }
    
    .modal-content {
        max-height: 90vh;
    }
}

/* 高分辨率屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .tool-card {
        border-width: 0.5px;
    }
    
    .nav-item {
        border-width: 0.5px;
    }
}

/* 减少动画的用户偏好 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 暗色模式偏好 */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme]) {
        --bg-primary: #1a1a1a;
        --bg-secondary: #2d2d2d;
        --bg-card: #2d2d2d;
        --text-primary: #ffffff;
        --text-secondary: #cccccc;
        --text-muted: #999999;
        --border-color: #404040;
        --shadow-light: 0 4px 12px rgba(0,0,0,0.3);
        --shadow-medium: 0 8px 24px rgba(0,0,0,0.4);
    }
}

/* 打印样式 */
@media print {
    .header,
    .sidebar,
    .modal {
        display: none !important;
    }
    
    .main-container {
        grid-template-columns: 1fr;
    }
    
    .tool-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .card-action {
        display: none;
    }
}