* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #4a4a4a;
    background: linear-gradient(135deg, #f9f7ff 0%, #f0f4ff 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 18px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    backdrop-filter: blur(10px);
}

header {
    background: linear-gradient(90deg, #6C63FF, #4A40E5);
    color: white;
    padding: 30px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

h1 {
    font-size: 2.4rem;
    margin-bottom: 12px;
    font-weight: 700;
}

.description {
    font-size: 1.1rem;
    opacity: 0.92;
    max-width: 800px;
    margin: 0 auto;
    font-weight: 300;
}

.main-content {
    display: flex;
    flex-wrap: wrap;
    padding: 25px;
}

.left-panel {
    flex: 1;
    min-width: 300px;
    padding: 25px;
}

.right-panel {
    flex: 2;
    min-width: 400px;
    padding: 25px;
    border-left: 1px solid #eae6ff;
}

.upload-box {
    border: 2px dashed #6C63FF;
    border-radius: 14px;
    padding: 30px;
    text-align: center;
    margin-bottom: 30px;
    background-color: #f7f5ff;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.upload-box:hover {
    background-color: #efeaff;
    border-color: #564fd0;
    transform: translateY(-3px);
    box-shadow: 0 7px 14px rgba(108, 99, 255, 0.15);
}

.folder-input {
    display: none;
}

.folder-label {
    display: inline-block;
    padding: 15px 35px;
    background: linear-gradient(to right, #6C63FF, #8A84FF);
    color: white;
    border-radius: 10px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(108, 99, 255, 0.3);
}

.folder-label:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(108, 99, 255, 0.4);
}

.selected-folder {
    margin-top: 18px;
    font-style: italic;
    color: #777;
    word-break: break-all;
    background: #fff;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #eae6ff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 28px;
}

.action-btn {
    flex: 1;
    min-width: 120px;
    padding: 15px 20px;
    color: white;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.action-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* 控制类按钮 */
.action-btn-control {
    background: linear-gradient(to right, #5E5CE6, #7E7BFF);
}

.action-btn-control:hover {
    background: linear-gradient(to right, #4A40E5, #6C63FF);
}

/* 生成类按钮 */
.action-btn-generate {
    background: linear-gradient(to right, #30D158, #34C759);
}

.action-btn-generate:hover {
    background: linear-gradient(to right, #25B84F, #2D9D46);
}

/* 复制类按钮 */
.action-btn-copy {
    background: linear-gradient(to right, #0A84FF, #007AFF);
}

.action-btn-copy:hover {
    background: linear-gradient(to right, #0071E0, #0056B3);
}

/* 下载类按钮 */
.action-btn-download {
    background: linear-gradient(to right, #FF9F0A, #FF9500);
}

.action-btn-download:hover {
    background: linear-gradient(to right, #E68600, #D67C00);
}

.tree-container, .md-container {
    margin-top: 25px;
    border: 1px solid #eae6ff;
    border-radius: 14px;
    padding: 25px;
    background: white;
    max-height: 400px;
    overflow-y: auto;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 18px;
    padding-bottom: 14px;
    border-bottom: 1px solid #eae6ff;
}

.panel-title {
    font-weight: bold;
    color: #5E5CE6;
    font-size: 1.3rem;
}

.directory-tree {
    font-family: 'Consolas', monospace;
    font-size: 14px;
    line-height: 1.5;
}

.tree-item {
    padding: 5px 7px;
    margin: 4px 0;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.tree-item:hover {
    background-color: #f0edff;
}

.folder {
    color: #5E5CE6;
    font-weight: bold;
    cursor: pointer;
}

.file {
    color: #0A84FF;
    margin-left: 20px;
}

.empty-folder {
    color: #8E8E93;
    font-style: italic;
    margin-left: 20px;
}

.icon {
    margin-right: 8px;
}

.file-content {
    font-family: 'Consolas', monospace;
    font-size: 13px;
    white-space: pre-wrap;
    background: #f7f5ff;
    padding: 16px;
    border-radius: 10px;
    border: 1px solid #eae6ff;
    max-height: 300px;
    overflow-y: auto;
}

.notification {
    position: fixed;
    bottom: 30px;
    right: 30px;
    padding: 16px 30px;
    background: #30D158;
    color: white;
    border-radius: 10px;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 1000;
}

.loading {
    text-align: center;
    padding: 25px;
    color: #8E8E93;
}

.spinner {
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-left: 4px solid #6C63FF;
    border-radius: 50%;
    width: 35px;
    height: 35px;
    animation: spin 1s linear infinite;
    margin: 0 auto 18px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.supported-files {
    margin-top: 25px;
    background: #f7f5ff;
    padding: 18px;
    border-radius: 12px;
    font-size: 0.9rem;
}

.supported-files h3 {
    margin-bottom: 14px;
    color: #5E5CE6;
}

.file-types {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.file-type {
    background: #f0edff;
    color: #5E5CE6;
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid #d9d6ff;
}

/* .NET 相关文件类型 */
.file-type.dotnet {
    background: #e6e4ff;
    color: #4A40E5;
}

/* Web 相关文件类型 */
.file-type.web {
    background: #d6e4ff;
    color: #0A84FF;
}

/* Java 相关文件类型 */
.file-type.java {
    background: #ffe6f2;
    color: #FF2D55;
}

/* C/C++ 相关文件类型 */
.file-type.cpp {
    background: #e4f5e6;
    color: #30D158;
}

/* Go 相关文件类型 */
.file-type.go {
    background: #fff0cc;
    color: #FF9500;
}

/* Rust 相关文件类型 */
.file-type.rust {
    background: #ffe5d9;
    color: #FF3B30;
}

/* 纯文本和数据文件类型 */
.file-type.plain {
    background: #f2f2f7;
    color: #8E8E93;
}

footer {
    text-align: center;
    padding: 25px;
    color: #8E8E93;
    font-size: 0.9rem;
    border-top: 1px solid #eae6ff;
}

@media (max-width: 768px) {
    .main-content {
        flex-direction: column;
    }

    .right-panel {
        border-left: none;
        border-top: 1px solid #eae6ff;
    }

    .action-btn {
        min-width: 100px;
        font-size: 0.9rem;
    }
}