/* 
 * Minecraft Server Manager - 重构版样式
 * 使用现代CSS特性
 */

/* CSS自定义属性（变量） */
:root {
  /* 颜色主题 */
  --primary-color: #3498db;
  --primary-dark: #2980b9;
  --secondary-color: #6c757d;
  --success-color: #28a745;
  --warning-color: #ffc107;
  --danger-color: #dc3545;
  --info-color: #17a2b8;
  
  /* 状态颜色 */
  --status-running: #2ecc71;
  --status-stopped: #e74c3c;
  --status-starting: #f39c12;
  --status-stopping: #95a5a6;
  --status-error: #e74c3c;
  
  /* 背景颜色 */
  --bg-primary: #f8f9fa;
  --bg-secondary: #ffffff;
  --bg-tertiary: #e9ecef;
  
  /* 文字颜色 */
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --text-light: #ffffff;
  
  /* 边框颜色 */
  --border-color: #dee2e6;
  
  /* 阴影 */
  --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
  --shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
  
  /* 间距 */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;
  
  /* 圆角 */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* 动画 */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
}

/* 重置和基础样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  color: var(--text-primary);
  line-height: 1.6;
}

/* 容器布局 */
.app-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
}

/* 头部样式 */
.header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  padding: var(--spacing-md) var(--spacing-xl);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.logo i {
  color: var(--primary-color);
  transition: var(--transition-fast);
}

.logo:hover i {
  color: var(--primary-dark);
}

/* 连接状态 */
.connection-status {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border-radius: calc(var(--radius-md) * 2);
  border: 1px solid var(--border-color);
  font-size: 0.9rem;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--status-stopped);
  transition: all var(--transition-normal);
}

.status-dot.connected {
  background: var(--status-running);
  animation: pulse 2s infinite;
}

.status-dot.connecting {
  background: var(--status-starting);
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0% { opacity: 1; }
  50% { opacity: 0.5; }
  100% { opacity: 1; }
}

/* 连接面板 */
.connection-panel {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  margin: var(--spacing-xxl) auto;
  max-width: 500px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-xl);
  animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.panel-content h2 {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
  font-size: 1.5rem;
}

/* 表单组 */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 1rem;
  transition: all var(--transition-normal);
  background: var(--bg-secondary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group input:disabled,
.form-group select:disabled,
.form-group textarea:disabled {
  background: var(--bg-tertiary);
  cursor: not-allowed;
  opacity: 0.6;
}

/* 按钮样式 */
.btn {
  padding: var(--spacing-md) calc(var(--spacing-md) * 1.5);
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--primary-color);
  color: var(--text-light);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(52, 152, 219, 0.4);
}

.btn-secondary {
  background: var(--secondary-color);
  color: var(--text-light);
}

.btn-secondary:hover {
  background: #5a6268;
  transform: translateY(-2px);
}

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

.btn-success:hover {
  background: #218838;
  transform: translateY(-2px);
}

.btn-warning {
  background: var(--warning-color);
  color: #212529;
}

.btn-warning:hover {
  background: #e0a800;
  transform: translateY(-2px);
}

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

.btn-danger:hover {
  background: #c82333;
  transform: translateY(-2px);
}

.btn-info {
  background: var(--info-color);
  color: var(--text-light);
}

.btn-info:hover {
  background: #138496;
  transform: translateY(-2px);
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.85rem;
}

.btn-lg {
  padding: var(--spacing-lg) calc(var(--spacing-lg) * 1.5);
  font-size: 1.1rem;
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* 主内容区域 */
.main-content {
  flex: 1;
  display: flex;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  padding: 0 var(--spacing-xl) var(--spacing-xl);
  gap: var(--spacing-xl);
}

/* 侧边栏 */
.sidebar {
  width: 250px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  height: fit-content;
  position: sticky;
  top: calc(var(--spacing-xl) + 70px); /* Header高度补偿 */
  align-self: flex-start;
}

.nav-menu {
  padding: var(--spacing-md) 0;
}

.nav-item {
  width: 100%;
  padding: var(--spacing-lg) calc(var(--spacing-md) * 1.5);
  border: none;
  background: transparent;
  text-align: left;
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
  border-radius: 0;
  position: relative;
}

.nav-item:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  padding-left: calc(var(--spacing-md) * 2);
}

.nav-item.active {
  background: var(--primary-color);
  color: var(--text-light);
}

.nav-item.active::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  width: 3px;
  background: var(--primary-dark);
}

/* 内容区域 */
.content-area {
  flex: 1;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  overflow: hidden;
  min-height: 600px;
}

.content-section {
  display: none;
  padding: var(--spacing-xl);
  height: 100%;
}

.content-section.active {
  display: block;
  animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.section-header h2 {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--text-primary);
  font-size: 1.5rem;
}

/* 仪表板网格 */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.stat-card {
  background: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  transition: all var(--transition-normal);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--primary-color);
}

.stat-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  font-size: 1.5rem;
  flex-shrink: 0;
}

.stat-content h3 {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xs);
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* 实例卡片 */
.instance-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.instance-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.instance-header {
  padding: var(--spacing-lg);
  background: var(--bg-tertiary);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  border-bottom: 1px solid var(--border-color);
}

.instance-info {
  flex: 1;
}

.instance-name {
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.instance-id {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.instance-status {
  text-align: right;
  flex-shrink: 0;
  margin-left: var(--spacing-md);
}

.status-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: calc(var(--radius-md) * 2);
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.status-badge.running {
  background: rgba(46, 204, 113, 0.2);
  color: var(--status-running);
}

.status-badge.stopped {
  background: rgba(231, 76, 60, 0.2);
  color: var(--status-stopped);
}

.status-badge.starting {
  background: rgba(243, 156, 18, 0.2);
  color: var(--status-starting);
}

.status-badge.stopping {
  background: rgba(149, 165, 166, 0.2);
  color: var(--status-stopping);
}

.badge {
  display: inline-block;
  padding: 0.25em 0.4em;
  font-size: 75%;
  font-weight: 700;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: calc(var(--radius-sm) * 2);
}

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

.badge-warning {
  background: var(--warning-color);
  color: #212529;
}

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

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

.instance-body {
  padding: var(--spacing-lg);
}

.instance-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.detail-row {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-xs) 0;
  border-bottom: 1px solid var(--bg-tertiary);
}

.detail-label {
  font-weight: 500;
  color: var(--text-secondary);
}

.detail-value {
  color: var(--text-primary);
  font-weight: 500;
}

.instance-actions {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: flex-end;
  flex-wrap: wrap;
}

/* 任务卡片 */
.task-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.task-header {
  padding: var(--spacing-lg);
  background: var(--bg-tertiary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.task-info {
  flex: 1;
}

.task-type {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
}

.task-id {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.task-time {
  text-align: right;
  flex-shrink: 0;
  margin-left: var(--spacing-md);
}

.scheduled-time {
  font-weight: 500;
  color: var(--text-primary);
}

.time-remaining {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.task-body {
  padding: var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.task-details {
  flex: 1;
}

.task-details p {
  margin: var(--spacing-xs) 0;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.task-actions {
  flex-shrink: 0;
  margin-left: var(--spacing-md);
}

/* 终端样式 */
.terminal-container {
  background: #1e1e1e;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  height: 500px;
  display: flex;
  flex-direction: column;
}

.terminal-header {
  background: #2d2d30;
  color: #cccccc;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.status-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.app-identifier {
  font-weight: bold;
  color: #4ec9b0;
}

.status-indicator {
  color: #6a9955;
}

.app-type {
  color: #9cdcfe;
}

.status-right {
  display: flex;
  gap: var(--spacing-xs);
}

.btn-icon {
  background: transparent;
  color: #cccccc;
  border: none;
  padding: var(--spacing-xs);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-icon:hover {
  background: #3c3c41;
  color: white;
}

.terminal-output {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-md);
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 0.9rem;
  line-height: 1.5;
  color: #d4d4d4;
}

.log-entry {
  margin-bottom: var(--spacing-xs);
  display: flex;
  gap: var(--spacing-md);
}

.log-timestamp {
  color: #808080;
  flex-shrink: 0;
}

.log-content {
  flex: 1;
}

.terminal-input-container {
  background: #2d2d30;
  padding: var(--spacing-md);
  border-top: 1px solid #3c3c41;
}

.terminal-input {
  width: 100%;
  padding: var(--spacing-sm);
  background: #3c3c41;
  border: 1px solid #454545;
  border-radius: var(--radius-sm);
  color: #d4d4d4;
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 0.9rem;
}

.terminal-input:focus {
  outline: none;
  border-color: var(--primary-color);
}

/* 模态框样式 */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  animation: fadeIn 0.3s ease-out;
}

.modal {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 90vw;
  max-height: 90vh;
  overflow: hidden;
  animation: scaleIn 0.3s ease-out;
}

@keyframes scaleIn {
  from {
    transform: scale(0.7);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.modal-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--spacing-lg);
  max-height: 60vh;
  overflow-y: auto;
}

.modal-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
}

/* Toast通知样式 */
.toast {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  color: var(--text-light);
  margin-bottom: var(--spacing-sm);
  animation: slideInRight 0.3s ease-out;
  box-shadow: var(--shadow);
  min-width: 300px;
  max-width: 400px;
}

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

@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

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

.toast-error {
  background: var(--danger-color);
}

.toast-warning {
  background: var(--warning-color);
  color: #212529;
}

.toast-info {
  background: var(--info-color);
}

/* 空状态样式 */
.empty-state {
  text-align: center;
  padding: var(--spacing-xxl) var(--spacing-xl);
  color: var(--text-secondary);
}

.empty-state i {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
  color: var(--border-color);
}

.empty-state p {
  margin-bottom: var(--spacing-lg);
  font-size: 1.1rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .main-content {
    flex-direction: column;
    padding: var(--spacing-md);
  }
  
  .sidebar {
    width: 100%;
    position: static;
    margin-bottom: var(--spacing-md);
    top: 0;
  }
  
  .nav-menu {
    display: flex;
    overflow-x: auto;
    padding-bottom: var(--spacing-xs);
  }
  
  .nav-item {
    flex: 0 0 auto;
    padding: var(--spacing-md);
  }
  
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  
  .instance-details {
    grid-template-columns: 1fr;
  }
  
  .section-header {
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-md);
  }
  
  .connection-panel {
    margin: var(--spacing-lg) var(--spacing-md);
    padding: var(--spacing-lg);
  }
  
  .terminal-container {
    height: 400px;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-xl: 1rem;
    --spacing-lg: 0.75rem;
    --spacing-md: 0.5rem;
    --spacing-sm: 0.25rem;
  }
  
  .header-content {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
  
  .logo {
    justify-content: center;
  }
  
  .connection-status {
    justify-content: center;
  }
  
  .instance-actions {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
    margin-bottom: var(--spacing-xs);
  }
  
  .modal {
    margin: var(--spacing-md);
    max-height: calc(100vh - 2 * var(--spacing-md));
  }
}

/* 动画和过渡效果 */
.loading-indicator {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-xl);
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid #f3f3f3;
  border-top: 2px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* 滚动条样式 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
  background: var(--secondary-color);
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}