/* === 全局样式重置 === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #121212; /* 暗夜黑背景 */
    color: #e0e0e0;      /* 浅色文字 */
    height: 100vh;
    overflow: hidden;
}

/* === 应用容器 === */
.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background: #181818; /* 主体深灰背景 */
}

/* === 顶部工具栏 === */
.top-toolbar {
    background: linear-gradient(90deg, #1c1c1c, #2a2a2a);
    color: #f0f0f0;
    padding: 12px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.6);
    z-index: 100;
}

.toolbar-left {
    display: flex;
    align-items: center;
    gap: 24px;
}

.app-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: #ffffff;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.85rem;
    opacity: 0.9;
    color: #bbb;
}

.file-size, .file-status {
    background: rgba(255,255,255,0.1);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
    color: #e0e0e0;
}

/* === 认证区域 === */
.auth-section {
    display: flex;
    align-items: center;
    gap: 8px;
}

.token-input {
    padding: 8px 12px;
    border: 1px solid #444;
    border-radius: 6px;
    width: 280px;
    font-size: 0.9rem;
    background: #1e1e1e;
    color: #e0e0e0;
    transition: all 0.2s ease;
}

.token-input:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 2px rgba(0,123,255,0.25);
}

/* === 按钮样式 === */
.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn-primary, .btn-success, .btn-secondary, .btn-outline {
    background: #444;      /* 深灰色背景 */
    color: #e0e0e0;        /* 浅灰文字 */
    border: 1px solid #555;
}

.btn-primary:hover:not(:disabled),
.btn-success:hover:not(:disabled),
.btn-secondary:hover:not(:disabled),
.btn-outline:hover:not(:disabled) {
    background: #555;      /* hover 加亮 */
    border-color: #777;
}

.btn-primary:disabled,
.btn-success:disabled,
.btn-secondary:disabled,
.btn-outline:disabled {
    background: #333;
    color: #888;
    border-color: #444;
}

/* === 主容器 === */
.main-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* === 左侧面板 === */
.left-panel {
    width: 280px;
    background: #1f1f1f;
    border-right: 1px solid #2c2c2c;
    padding: 16px;
    overflow-y: auto;
}

.panel-header {
    margin-bottom: 20px;
}

.panel-header h3 {
    color: #e0e0e0;
    font-size: 1.1rem;
    font-weight: 600;
}

.tool-section {
    margin-bottom: 24px;
}

.tool-section h4 {
    color: #ccc;
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 12px;
    padding-bottom: 4px;
    border-bottom: 1px solid #2c2c2c;
}

.tool-buttons {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tool-buttons .btn {
    justify-content: flex-start;
    text-align: left;
    background: #2a2a2a;
    color: #e0e0e0;
    border: 1px solid #3a3a3a;
    padding: 10px 12px;
}

.tool-buttons .btn:hover:not(:disabled) {
    background: #3a3a3a;
    border-color: #555;
}

/* === 编辑器选项 === */
.view-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    accent-color: #0d6efd;
}

.theme-selector, .font-size-control {
    margin-bottom: 12px;
}

.theme-selector label, .font-size-control label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 4px;
    color: #ccc;
}

.select-input {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid #444;
    border-radius: 4px;
    font-size: 0.9rem;
    background: #2a2a2a;
    color: #e0e0e0;
}

.slider {
    width: 100%;
    margin: 4px 0;
    accent-color: #0d6efd;
}

#font-size-value {
    font-size: 0.8rem;
    color: #aaa;
    text-align: center;
    display: block;
    margin-top: 4px;
}

/* === 主编辑区域 === */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #1e1e1e;
    overflow: hidden;
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: #2a2a2a;
    border-bottom: 1px solid #3a3a3a;
}

.editor-tabs {
    display: flex;
    gap: 2px;
}

.tab-btn {
    padding: 8px 16px;
    background: #2a2a2a;
    border: none;
    border-radius: 6px 6px 0 0;
    cursor: pointer;
    font-size: 0.9rem;
    color: #ccc;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    background: #3a3a3a;
}

.tab-btn.active {
    background: #1e1e1e;
    color: #0d6efd;
    border-bottom: 2px solid #0d6efd;
}

.editor-controls {
    display: flex;
    gap: 4px;
}

/* === 编辑器内容 === */
.editor-content {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.tab-content {
    display: none;
    height: 100%;
    overflow: hidden;
}

.tab-content.active {
    display: block;
}

.editor-container {
    height: 100%;
    width: 100%;
}

/* 树状视图 */
.tree-container {
    height: 100%;
    padding: 16px;
    overflow: auto;
    background: #1e1e1e;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.preview-container {
    height: 100%;
    padding: 16px;
    overflow: auto;
    background: #1e1e1e;
}

#json-preview-content {
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    white-space: pre-wrap;
    background: #2a2a2a;
    padding: 16px;
    border-radius: 6px;
    border: 1px solid #3a3a3a;
    color: #e0e0e0;
}

.error-message {
    color: #ff6b6b;
    padding: 16px;
    background: #3a1f1f;
    border: 1px solid #5a1f1f;
    border-radius: 6px;
    font-size: 0.9rem;
}

/* 树节点样式 */
.tree-node {
    margin: 2px 0;
    user-select: none;
}

.tree-header {
    display: flex;
    align-items: center;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    font-size: 0.9rem;
}

.tree-header:hover {
    background: rgba(13,110,253,0.1);
}

.tree-header.collapsed {
    opacity: 0.7;
}

.tree-toggle {
    margin-right: 6px;
    font-size: 0.8rem;
    color: #6c757d;
    width: 12px;
    text-align: center;
}

.tree-key {
    font-weight: 600;
    color: #ccc;
    margin-right: 8px;
}

.tree-type {
    font-size: 0.8rem;
    color: #888;
    font-style: italic;
}

.array-header .tree-type {
    color: #28a745;
}

.object-header .tree-type {
    color: #0d6efd;
}

.tree-content {
    border-left: 1px solid #3a3a3a;
    margin-left: 12px;
    padding-left: 8px;
}

.tree-leaf {
    display: flex;
    align-items: center;
    padding: 2px 8px;
    font-size: 0.9rem;
    margin: 1px 0;
}

.tree-leaf .tree-key {
    color: #ccc;
    font-weight: 500;
    margin-right: 8px;
}

.tree-value {
    font-family: 'Monaco', 'Consolas', monospace;
}

.tree-value.string-value {
    color: #28a745;
}

.tree-value.number-value {
    color: #0d6efd;
}

.tree-value.boolean-value {
    color: #ffc107;
    font-weight: 600;
}

.tree-value.null-value {
    color: #6c757d;
    font-style: italic;
}

/* 底部状态栏 */
.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
    background: #2a2a2a;
    color: #adb5bd;
    font-size: 0.8rem;
    border-top: 1px solid #3a3a3a;
}

.status-left, .status-center, .status-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.validation-status {
    font-weight: 500;
}

.validation-status.valid {
    color: #28a745;
}

.validation-status.invalid {
    color: #ff6b6b;
}

/* 消息提示 */
.message-toast {
    position: fixed;
    top: 80px;
    right: 24px;
    background: #343a40;
    color: white;
    padding: 12px 20px;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    transform: translateX(400px);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
    max-width: 350px;
    font-size: 0.9rem;
}

.message-toast.show {
    transform: translateX(0);
    opacity: 1;
}

.message-toast.success {
    background: #28a745;
}

.message-toast.error {
    background: #ff6b6b;
}

.message-toast.warning {
    background: #ffc107;
    color: #212529;
}

.message-toast.info {
    background: #0dcaf0;
}

/* 对话框 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1001;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: #2a2a2a;
    padding: 24px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
    max-width: 400px;
    width: 90%;
    color: #e0e0e0;
}

.modal-content h3 {
    margin-bottom: 16px;
    color: #ffffff;
}

.modal-content p {
    margin-bottom: 20px;
    color: #ccc;
    line-height: 1.5;
}

.modal-buttons {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .left-panel {
        display: none;
    }
    
    .toolbar-left {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .auth-section {
        flex-wrap: wrap;
        gap: 4px;
    }
    
    .token-input {
        width: 200px;
    }
    
    .app-title {
        font-size: 1.2rem;
    }
}

/* 加载动画 */
.btn.loading {
    position: relative;
    color: transparent;
}

.btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* 全屏模式优化 */
:fullscreen .app-container {
    background: #1e1e1e;
}

:fullscreen .left-panel {
    background: #252526;
    border-color: #3e3e3e;
}

:fullscreen .main-content {
    background: #1e1e1e;
}