/* ==========================================
   响应式设计模块 - Responsive Design
   包含：各种屏幕尺寸的适配样式
   ========================================== */

/* 移动端适配 (max-width: 768px) */
@media (max-width: 768px) {
    body {
        padding: 0;
    }
    
    /* 显示移动端顶部导航栏 */
    .mobile-header {
        display: flex;
    }
    
    /* 显示侧边栏遮罩层 */
    .sidebar-overlay {
        display: block;
        pointer-events: none;
    }
    
    .sidebar-overlay.overlay-active {
        pointer-events: auto;
    }
    
    /* 移动端改为垂直布局 */
    .app-wrapper {
        flex-direction: column;
        padding-top: 75px; /* 为顶部导航栏留出空间 */
    }
    
    /* 侧边栏改为从左侧弹出 */
    .sidebar {
        width: 280px;
        min-width: 280px;
        height: 100vh;
        position: fixed;
        top: 0;
        left: -100%; /* 默认完全隐藏在左侧 */
        padding: 20px 15px;
        border-right: none; /* 移除边框避免黑边 */
        border-bottom: none;
        z-index: 1001;
        transition: left 0.3s ease;
        overflow-y: auto;
    }
    
    /* 侧边栏打开状态 */
    .sidebar.sidebar-open {
        left: 0;
        border-right: 1px solid rgba(255, 255, 255, 0.1); /* 打开时显示边框 */
        box-shadow: 4px 0 20px rgba(0, 0, 0, 0.5);
    }
    
    .sidebar-header {
        text-align: center;
        padding-bottom: 20px;
        margin-bottom: 20px;
    }
    
    .logo-container {
        width: 60px;
        height: 60px;
        margin: 0 auto 12px;
        font-size: 1.8rem;
    }
    
    .app-title {
        font-size: 1.4rem;
        margin: 0;
    }
    
    .sidebar-storage {
        margin-bottom: 15px;
        padding: 12px;
    }
    
    .sidebar-storage .storage-label {
        font-size: 0.8rem;
    }
    
    .sidebar-storage .current-storage-name {
        font-size: 0.85rem;
        padding: 6px 0;
    }
    
    .sidebar-storage .switch-storage-btn {
        padding: 8px 12px;
        font-size: 0.85rem;
    }
    
    .sidebar-nav {
        flex-direction: column;
        gap: 8px;
    }
    
    .nav-item {
        padding: 14px 16px;
        font-size: 1rem;
    }
    
    .nav-item span {
        display: inline;
    }
    
    .nav-item i {
        font-size: 1.2rem;
    }
    
    /* 主内容区域 */
    .main-container {
        max-width: 100%;
        padding: 20px 15px;
    }
    
    .content-section {
        margin-bottom: 20px;
    }
    
    .upload-section {
        padding: 20px;
        border-radius: 15px;
    }
    
    .upload-area {
        padding: 50px 25px;
    }
    
    .upload-icon {
        font-size: 4rem;
        margin-bottom: 20px;
    }
    
    .upload-text {
        font-size: 1.3rem;
    }
    
    .upload-subtext {
        font-size: 1rem;
        margin-bottom: 25px;
    }
    
    .paste-hint {
        font-size: 0.85rem;
        margin-top: 15px;
        flex-direction: column;
        gap: 5px;
    }
    
    .paste-hint::before {
        font-size: 0.9rem;
    }
    
    .preview-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .preview-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    
    .preview-title {
        font-size: 1.5rem;
    }
    
    .header-actions {
        width: 100%;
        justify-content: flex-start;
        flex-wrap: wrap;
    }
    
    .batch-upload-btn, .clear-all-btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
    
    .sort-dropdown {
        width: 100%;
        margin-bottom: 10px;
    }
    
    .custom-select {
        width: 100%;
        min-width: 100%;
    }
    
    .custom-select-trigger {
        padding: 12px 40px 12px 18px;
        font-size: 0.9rem;
        width: 100%;
    }
    
    .custom-select-options {
        max-height: 250px;
        overflow-y: auto;
    }
    
    .custom-option {
        padding: 12px 18px;
        font-size: 0.9rem;
    }
    
    .custom-option:hover {
        padding-left: 22px;
    }
    
    .stats-bar {
        flex-direction: row;
        justify-content: space-around;
        padding: 12px 20px;
        gap: 10px;
    }
    
    .stats-item {
        flex: 1;
        min-width: auto;
    }
    
    .stats-number {
        font-size: 1.2rem;
    }
    
    .stats-label {
        font-size: 0.75rem;
    }
    
    .modal-container {
        width: 95%;
        max-height: 90vh;
        margin: 0 10px;
    }
    
    .modal-header {
        padding: 20px;
    }
    
    .modal-header h3 {
        font-size: 1.5rem;
    }
    
    .modal-content {
        padding: 20px;
    }
    
    .modal-storage-container {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .modal-storage-option {
        padding: 15px;
    }
    
    .storage-name {
        font-size: 1.1rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .preview-item {
        border-radius: 15px;
    }
    
    .preview-info {
        padding: 15px;
    }
    
    .action-buttons {
        flex-direction: column;
        gap: 8px;
    }
    
    .copy-btn, .upload-btn-small, .remove-btn {
        width: 100%;
        text-align: center;
        padding: 10px 15px;
    }
    
    .format-tab {
        font-size: 0.85rem;
        padding: 8px 12px;
    }
    
    .code-gen-header h3 {
        font-size: 1.3rem;
    }
    
    .copy-current-btn {
        font-size: 0.85rem;
        padding: 8px 16px;
    }
    
    .header-right-actions {
        width: 100%;
        justify-content: flex-start;
    }
    
    .empty-lines-selector {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    
    .empty-lines-selector label {
        font-size: 0.8rem;
    }
    
    .empty-lines-selector select {
        font-size: 0.8rem;
        padding: 3px 6px;
        min-width: 45px;
    }
    
    .code-generation-section {
        padding: 20px;
        border-radius: 15px;
        max-height: 350px;
    }
    
    .file-list-section {
        padding: 20px;
        border-radius: 15px;
    }
    
    .gotop-btn {
        top: 15px;
        right: 15px;
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
}

/* 小屏手机适配 (max-width: 480px) */
@media (max-width: 480px) {
    .mobile-header {
        padding: 12px 15px;
    }
    
    .mobile-menu-btn {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .mobile-app-title {
        font-size: 1.1rem;
    }
    
    .app-wrapper {
        padding-top: 65px;
    }
    
    .sidebar {
        width: 260px;
        left: -100%;
    }
    
    .sidebar.sidebar-open {
        left: 0;
    }
    
    .logo-container {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .app-title {
        font-size: 1.2rem;
    }
    
    .nav-item {
        padding: 12px 14px;
        font-size: 0.95rem;
    }
    
    .gotop-btn {
        top: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .upload-btn {
        padding: 15px 30px;
        font-size: 1rem;
    }
    
    .custom-select-trigger {
        font-size: 0.85rem;
        padding: 10px 35px 10px 15px;
    }
    
    .custom-option {
        font-size: 0.85rem;
        padding: 10px 15px;
    }
}

/* 平板设备适配 (769px - 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
    .sidebar {
        width: 240px;
        min-width: 240px;
        padding: 25px 15px;
    }
    
    .logo-container {
        width: 60px;
        height: 60px;
        font-size: 1.8rem;
    }
    
    .app-title {
        font-size: 1.3rem;
    }
    
    .sidebar-storage {
        padding: 12px;
    }
    
    .nav-item {
        padding: 12px 14px;
        font-size: 0.95rem;
    }
    
    .main-container {
        max-width: calc(100vw - 240px);
        padding: 25px 30px;
    }
    
    .upload-section {
        padding: 25px;
    }
    
    .code-generation-section {
        padding: 25px;
        max-height: 400px;
    }
    
    .file-list-section {
        padding: 25px;
    }
    
    .upload-area {
        padding: 70px 35px;
    }
    
    .paste-hint {
        font-size: 0.9rem;
        margin-top: 18px;
    }
    
    .preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 22px;
    }
    
    .modal-container {
        width: 85%;
    }
    
    .modal-storage-container {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .format-tab {
        font-size: 0.88rem;
        padding: 9px 14px;
    }
    
    .empty-lines-selector {
        padding: 7px 13px;
    }
    
    .empty-lines-selector label {
        font-size: 0.82rem;
    }
    
    .empty-lines-selector select {
        font-size: 0.82rem;
        padding: 4px 7px;
    }
}

/* 大屏幕优化 (min-width: 1200px) */
@media (min-width: 1200px) {
    .sidebar {
        width: 300px;
        min-width: 300px;
        padding: 35px 25px;
    }
    
    .logo-container {
        width: 80px;
        height: 80px;
        font-size: 2.2rem;
    }
    
    .app-title {
        font-size: 1.6rem;
    }
    
    .sidebar-storage {
        padding: 18px;
    }
    
    .nav-item {
        padding: 16px 18px;
        font-size: 1.05rem;
    }
    
    .main-container {
        max-width: calc(100vw - 300px);
        padding: 40px 50px;
    }
    
    .upload-section {
        padding: 35px;
    }
    
    .code-generation-section {
        padding: 35px;
        max-height: 550px;
    }
    
    .file-list-section {
        padding: 35px;
    }
    
    .preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 30px;
    }
    
    .modal-storage-container {
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    }
    
    .upload-area {
        padding: 100px 60px;
    }
    
    .upload-icon {
        font-size: 6rem;
    }
    
    .paste-hint {
        font-size: 1rem;
        margin-top: 25px;
    }
    
    .paste-hint::before {
        font-size: 1.1rem;
    }
}

/* 超大屏幕优化 (min-width: 1600px) */
@media (min-width: 1600px) {
    .preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        gap: 35px;
    }
    
    .code-generation-section {
        max-height: 600px;
    }
}