/* 增强样式文件 - 美化界面 */

:root {
  /* 扩展调色板 */
  --primary-gradient: linear-gradient(135deg, #3498db, #2980b9);
  --secondary-gradient: linear-gradient(135deg, #2ecc71, #27ae60);
  --danger-gradient: linear-gradient(135deg, #e74c3c, #c0392b);
  --warning-gradient: linear-gradient(135deg, #f39c12, #d35400);
  --light-gradient: linear-gradient(135deg, #f8f9fa, #e9ecef);
  --card-hover-transform: translateY(-5px);
  --card-shadow-hover: 0 10px 20px rgba(0, 0, 0, 0.12);
}

/* 全局美化 */
body {
  background-color: #f4f6fa;
  background-image: linear-gradient(to bottom right, #f4f6fa, #e8eef5);
  background-attachment: fixed;
}

/* 导航栏美化 */
.navbar {
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
  background-color: rgba(255, 255, 255, 0.95) !important;
}

.navbar-brand {
  font-weight: 700;
  letter-spacing: 0.5px;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  transition: all 0.3s ease;
}

.navbar-brand:hover {
  transform: scale(1.05);
}

.nav-link {
  font-weight: 500;
  position: relative;
  padding: 0.5rem 1rem;
  transition: all 0.3s ease;
}

.nav-link:after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 50%;
  background: var(--primary-gradient);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.nav-link:hover:after,
.nav-link.active:after {
  width: 80%;
}

/* 卡片美化 */
.card {
  border: none;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  overflow: hidden;
}

.card:hover {
  transform: var(--card-hover-transform);
  box-shadow: var(--card-shadow-hover);
}

.card-title {
  font-weight: 700;
  color: #2c3e50;
}

.card-subtitle {
  font-weight: 500;
  color: #7f8c8d;
}

/* 设备卡片美化 */
.device-card {
  position: relative;
  z-index: 1;
}

.device-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--primary-gradient);
  z-index: 2;
}

.device-card .card-body {
  padding: 1.5rem;
}

.device-info {
  background-color: rgba(52, 152, 219, 0.05);
  border-radius: 8px;
  padding: 1rem;
  margin: 1rem 0;
}

.device-status {
  padding: 0.4rem 0.8rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

/* 按钮美化 */
.btn {
  border-radius: 8px;
  padding: 0.6rem 1.5rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.12);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 7px 14px rgba(0, 0, 0, 0.15);
}

.btn-primary {
  background-image: var(--primary-gradient);
  border: none;
}

.btn-success {
  background-image: var(--secondary-gradient);
  border: none;
}

.btn-danger {
  background-image: var(--danger-gradient);
  border: none;
}

.btn i {
  margin-right: 0.5rem;
  font-size: 1.1em;
}

/* 进度条美化 */
.progress {
  height: 10px;
  border-radius: 10px;
  background-color: #eaecef;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  margin: 1rem 0;
}

.progress-bar {
  border-radius: 10px;
  background-image: linear-gradient(to right, #3498db, #2ecc71);
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.1);
  transition: width 1s ease;
}

.progress-bar.bg-danger {
  background-image: var(--danger-gradient);
}

.progress-bar.bg-warning {
  background-image: var(--warning-gradient);
}

.progress-bar.bg-success {
  background-image: var(--secondary-gradient);
}

/* 搜索框美化 */
.search-box {
  position: relative;
  margin-bottom: 0;
}

.search-box .form-control {
  border-radius: 50px;
  padding: 0.75rem 1rem 0.75rem 3rem;
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  border: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.search-box .form-control:focus {
  background-color: #fff;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  border-color: rgba(52, 152, 219, 0.3);
}

.search-box .search-icon {
  position: absolute;
  left: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  color: #3498db;
  font-size: 1.1rem;
  z-index: 10;
}

/* 徽章美化 */
.badge {
  padding: 0.5em 0.8em;
  font-weight: 600;
  border-radius: 30px;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

/* 动画效果 */
@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.pulse-animation {
  animation: pulse 2s infinite;
}

/* 响应式调整 */
@media (max-width: 767.98px) {
  .card {
    margin-bottom: 1.5rem;
  }
  
  .btn {
    padding: 0.5rem 1rem;
  }
  
  .device-info {
    flex-direction: column;
    gap: 0.5rem;
  }
}

/* 登录页面美化 */
.login-card {
  max-width: 400px;
  margin: 5rem auto;
  padding: 2.5rem;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.login-card .card-title i {
  font-size: 3rem;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* 表格美化 */
.table {
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.table thead th {
  background-color: #f8f9fa;
  border-bottom: 2px solid #e9ecef;
  font-weight: 700;
  color: #2c3e50;
  padding: 1rem;
}

.table tbody tr:hover {
  background-color: rgba(52, 152, 219, 0.05);
}

.table td {
  padding: 1rem;
  vertical-align: middle;
}

/* 错误页面美化 */
.error-page i {
  font-size: 5rem;
  margin-bottom: 2rem;
  background: var(--danger-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.error-page h1 {
  font-size: 8rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #2c3e50, #bdc3c7);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}