/**
 * UI Core Stylesheet
 * 智能中控台核心样式库
 * 
 * @version 1.0.0
 * @author Smart Center Team
 * @description 提供所有UI组件的基础样式和通用样式规范
 */

/* ==================== 基础重置 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
}

/* ==================== 布局容器 ==================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.page-header h1 {
    font-size: 32px;
    margin-bottom: 10px;
}

.page-header p {
    font-size: 16px;
    opacity: 0.9;
}

/* ==================== 模块卡片 ==================== */
.module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    margin-top: 30px;
}

.module-card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

.module-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    border-color: #667eea;
}

.module-icon {
    font-size: 48px;
    margin-bottom: 15px;
    text-align: center;
}

.module-title {
    font-size: 20px;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.module-description {
    font-size: 14px;
    color: #7f8c8d;
    line-height: 1.6;
    margin-bottom: 15px;
}

.module-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: bold;
}

.module-badge.hot {
    background: linear-gradient(135deg, #ff6b6b, #ee5a6f);
    color: white;
}

.module-badge.new {
    background: linear-gradient(135deg, #51cf66, #37b24d);
    color: white;
}

.module-badge.beta {
    background: linear-gradient(135deg, #ffd43b, #fcc419);
    color: #333;
}

/* ==================== 按钮样式 ==================== */
.btn {
    display: inline-block;
    padding: 10px 24px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #f1f3f5;
    color: #343a40;
}

.btn-secondary:hover {
    background: #e9ecef;
}

.btn-success {
    background: linear-gradient(135deg, #51cf66, #37b24d);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, #ffd43b, #fcc419);
    color: #333;
}

.btn-danger {
    background: linear-gradient(135deg, #ff6b6b, #ee5a6f);
    color: white;
}

/* ==================== 表单元素 ==================== */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #343a40;
}

.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* ==================== 对话框/弹窗 ==================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background: white;
    border-radius: 12px;
    padding: 30px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.modal-header {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #2c3e50;
}

.modal-body {
    margin-bottom: 20px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding-top: 20px;
    border-top: 1px solid #dee2e6;
}

/* ==================== 加载动画 ==================== */
.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

/* ==================== 工具类 ==================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }

.flex { display: flex; }
.flex-center { align-items: center; justify-content: center; }
.flex-between { align-items: center; justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }

.hidden { display: none; }
.visible { visibility: visible; }
.invisible { visibility: hidden; }

/* ==================== 响应式设计 ==================== */
@media (max-width: 768px) {
    .module-grid {
        grid-template-columns: 1fr;
    }
    
    .page-header h1 {
        font-size: 24px;
    }
    
    .container {
        padding: 15px;
    }
}

/* ==================== AI 对话窗口样式 ==================== */
.ai-chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 380px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.15);
    z-index: 999;
    overflow: hidden;
}

.ai-chat-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 15px 20px;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ai-chat-body {
    height: 400px;
    overflow-y: auto;
    padding: 20px;
    background: #f8f9fa;
}

.ai-chat-input {
    padding: 15px;
    border-top: 1px solid #dee2e6;
    display: flex;
    gap: 10px;
}

.ai-chat-input textarea {
    flex: 1;
    padding: 10px;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    resize: none;
    font-family: inherit;
}

.ai-message {
    margin-bottom: 15px;
    padding: 12px 16px;
    border-radius: 8px;
    max-width: 80%;
}

.ai-message.user {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    margin-left: auto;
}

.ai-message.assistant {
    background: white;
    border: 1px solid #dee2e6;
}

/* ==================== 字段编辑器样式 ==================== */
.field-editor {
    background: white;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    border: 1px solid #dee2e6;
}

.field-label {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.field-actions {
    display: flex;
    gap: 10px;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #f1f3f5;
}

/* ==================== 拖拽排序样式 ==================== */
.sortable-ghost {
    opacity: 0.4;
    background: #f1f3f5;
}

.sortable-drag {
    opacity: 1;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

/* ==================== 通知消息 ==================== */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    min-width: 300px;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
    z-index: 2000;
    animation: slideInRight 0.3s ease;
}

.notification.success {
    background: #d3f9d8;
    border-left: 4px solid #51cf66;
    color: #2b8a3e;
}

.notification.error {
    background: #ffe3e3;
    border-left: 4px solid #ff6b6b;
    color: #c92a2a;
}

.notification.warning {
    background: #fff9db;
    border-left: 4px solid #ffd43b;
    color: #e67700;
}

.notification.info {
    background: #e7f5ff;
    border-left: 4px solid #339af0;
    color: #1864ab;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}