/* 律师客户沟通系统 - 主样式 */

:root {
  --primary-color: #2c3e50;
  --secondary-color: #3498db;
  --success-color: #27ae60;
  --warning-color: #f39c12;
  --danger-color: #e74c3c;
  --light-bg: #ecf0f1;
  --white: #ffffff;
  --shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--light-bg);
  color: var(--primary-color);
  line-height: 1.6;
}

/* 导航栏 */
.navbar {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 1rem 2rem;
  box-shadow: var(--shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar h1 {
  font-size: 1.5rem;
}

.navbar-nav {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.navbar-nav a {
  color: var(--white);
  text-decoration: none;
  transition: opacity 0.3s;
}

.navbar-nav a:hover {
  opacity: 0.8;
}

/* 容器 */
.container {
  max-width: 1400px;
  margin: 2rem auto;
  padding: 0 2rem;
}

/* 卡片 */
.card {
  background-color: var(--white);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card-header {
  border-bottom: 2px solid var(--light-bg);
  padding-bottom: 1rem;
  margin-bottom: 1rem;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
}

/* 按钮 */
.btn {
  padding: 0.5rem 1.5rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.3s;
}

.btn-primary {
  background-color: var(--secondary-color);
  color: var(--white);
}

.btn-primary:hover {
  background-color: #2980b9;
}

.btn-success {
  background-color: var(--success-color);
  color: var(--white);
}

.btn-success:hover {
  background-color: #229954;
}

.btn-danger {
  background-color: var(--danger-color);
  color: var(--white);
}

.btn-danger:hover {
  background-color: #c0392b;
}

/* 表单 */
.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-control {
  width: 100%;
  padding: 0.5rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 0.9rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

/* 表格 */
.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.table th,
.table td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid #ddd;
}

.table th {
  background-color: var(--light-bg);
  font-weight: 600;
}

.table tbody tr:hover {
  background-color: #f8f9fa;
}

/* 状态徽章 */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-success {
  background-color: #d4edda;
  color: var(--success-color);
}

.badge-warning {
  background-color: #fff3cd;
  color: var(--warning-color);
}

.badge-danger {
  background-color: #f8d7da;
  color: var(--danger-color);
}

/* 聊天界面 */
.chat-container {
  display: grid;
  grid-template-columns: 300px 1fr;
  height: calc(100vh - 100px);
  gap: 1rem;
}

.chat-sidebar {
  background-color: var(--white);
  border-radius: 8px;
  padding: 1rem;
  overflow-y: auto;
}

.chat-main {
  display: flex;
  flex-direction: column;
  background-color: var(--white);
  border-radius: 8px;
}

.chat-messages {
  flex: 1;
  padding: 1rem;
  overflow-y: auto;
}

.chat-input-area {
  padding: 1rem;
  border-top: 1px solid #ddd;
}

.message {
  margin-bottom: 1rem;
  padding: 0.75rem;
  border-radius: 8px;
  max-width: 70%;
}

.message.sent {
  background-color: var(--secondary-color);
  color: var(--white);
  margin-left: auto;
}

.message.received {
  background-color: #f1f3f5;
  margin-right: auto;
}

.message-time {
  font-size: 0.75rem;
  opacity: 0.7;
  margin-top: 0.25rem;
}

/* 统计卡片 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background-color: var(--white);
  border-radius: 8px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.stat-card h3 {
  font-size: 0.9rem;
  color: #7f8c8d;
  margin-bottom: 0.5rem;
}

.stat-card .stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
}

/* 响应式 */
@media (max-width: 768px) {
  .chat-container {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .navbar {
    flex-direction: column;
    gap: 1rem;
  }
  
  .navbar-nav {
    gap: 1rem;
  }
}

/* 加载动画 */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(0,0,0,0.1);
  border-radius: 50%;
  border-top-color: var(--secondary-color);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* 模态框 */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.5);
  z-index: 1000;
}

.modal.active {
  display: flex;
  justify-content: center;
  align-items: center;
}

.modal-content {
  background-color: var(--white);
  border-radius: 8px;
  padding: 2rem;
  max-width: 500px;
  width: 90%;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.modal-header {
  margin-bottom: 1.5rem;
}

.modal-footer {
  margin-top: 1.5rem;
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
}

/* 工具类 */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.hidden { display: none; }