/* ========== 主题变量 — Dark 模式（默认） ========== */
:root,
[data-theme="dark"] {
  --bg-primary: #0a0e17;
  --bg-secondary: #0f1520;
  --bg-card: rgba(17, 24, 39, 0.6);
  --bg-card-hover: rgba(26, 35, 50, 0.75);
  --bg-card-solid: #111827;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(139, 92, 246, 0.3);

  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-cyan: #00f0ff;
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-green: #10b981;
  --accent-red: #ef4444;
  --accent-yellow: #f59e0b;
  --accent-orange: #f97316;

  --glow-cyan: 0 0 20px rgba(0, 240, 255, 0.3);
  --glow-green: 0 0 12px rgba(16, 185, 129, 0.4);
  --glow-red: 0 0 12px rgba(239, 68, 68, 0.4);
  --glow-purple: 0 0 20px rgba(139, 92, 246, 0.25);

  --glass-bg: rgba(15, 23, 42, 0.65);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-blur: 16px;

  --topbar-bg: rgba(10, 14, 23, 0.8);
  --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);

  --aurora-opacity: 0.7;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
}

/* ========== Light 主题变量 ========== */
[data-theme="light"] {
  --bg-primary: #f0f4f8;
  --bg-secondary: #e2e8f0;
  --bg-card: rgba(255, 255, 255, 0.7);
  --bg-card-hover: rgba(255, 255, 255, 0.85);
  --bg-card-solid: #ffffff;
  --border-color: rgba(0, 0, 0, 0.08);
  --border-glow: rgba(99, 102, 241, 0.3);

  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --accent-cyan: #0891b2;
  --accent-blue: #2563eb;
  --accent-purple: #7c3aed;
  --accent-green: #059669;
  --accent-red: #dc2626;
  --accent-yellow: #d97706;
  --accent-orange: #ea580c;

  --glow-cyan: 0 0 16px rgba(8, 145, 178, 0.2);
  --glow-green: 0 0 10px rgba(5, 150, 105, 0.25);
  --glow-red: 0 0 10px rgba(220, 38, 38, 0.25);
  --glow-purple: 0 0 16px rgba(124, 58, 237, 0.15);

  --glass-bg: rgba(255, 255, 255, 0.6);
  --glass-border: rgba(0, 0, 0, 0.06);
  --glass-blur: 20px;

  --topbar-bg: rgba(255, 255, 255, 0.75);
  --card-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);

  --aurora-opacity: 0.4;
}

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

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background 0.5s ease, color 0.3s ease;
}

/* ========== Aurora 极光背景 ========== */
.aurora-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  opacity: var(--aurora-opacity);
  transition: opacity 0.5s ease;
}

.aurora-band {
  position: absolute;
  width: 200%;
  height: 60%;
  border-radius: 50%;
  filter: blur(40px);
  animation-timing-function: ease-in-out;
  animation-iteration-count: infinite;
  animation-direction: alternate;
}

.aurora-band-1 {
  top: -25%;
  left: -50%;
  background: radial-gradient(ellipse at center,
    rgba(139, 92, 246, 0.7) 0%,
    rgba(59, 130, 246, 0.45) 40%,
    transparent 70%
  );
  animation: aurora-drift-1 8s ease-in-out infinite alternate;
}

.aurora-band-2 {
  top: -10%;
  left: -30%;
  background: radial-gradient(ellipse at center,
    rgba(6, 182, 212, 0.6) 0%,
    rgba(16, 185, 129, 0.35) 45%,
    transparent 70%
  );
  animation: aurora-drift-2 12s ease-in-out infinite alternate;
}

.aurora-band-3 {
  top: -35%;
  left: -20%;
  background: radial-gradient(ellipse at center,
    rgba(236, 72, 153, 0.5) 0%,
    rgba(139, 92, 246, 0.35) 35%,
    transparent 65%
  );
  animation: aurora-drift-3 15s ease-in-out infinite alternate;
}

@keyframes aurora-drift-1 {
  0% { transform: translateX(0%) translateY(0%) rotate(0deg) scale(1); }
  100% { transform: translateX(25%) translateY(10%) rotate(5deg) scale(1.1); }
}

@keyframes aurora-drift-2 {
  0% { transform: translateX(10%) translateY(5%) rotate(-3deg) scale(1.05); }
  100% { transform: translateX(-15%) translateY(-5%) rotate(4deg) scale(0.95); }
}

@keyframes aurora-drift-3 {
  0% { transform: translateX(-10%) translateY(0%) rotate(2deg) scale(0.9); }
  100% { transform: translateX(20%) translateY(15%) rotate(-4deg) scale(1.15); }
}

/* ========== 顶部导航栏 ========== */
.top-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: var(--topbar-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--glass-border);
  transition: background 0.3s ease;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 20px;
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-purple);
  filter: drop-shadow(var(--glow-purple));
}

.logo-icon svg {
  width: 24px;
  height: 24px;
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 状态胶囊 */
.status-pills {
  display: flex;
  gap: 8px;
}

.pill {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-mono);
  backdrop-filter: blur(8px);
}

.pill-online {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--accent-green);
}

.pill-offline {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--accent-red);
}

.pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.dot-online {
  background: var(--accent-green);
  box-shadow: var(--glow-green);
  animation: pulse-green 2s ease-in-out infinite;
}

.dot-offline {
  background: var(--accent-red);
  box-shadow: var(--glow-red);
}

@keyframes pulse-green {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

/* ========== 主题切换按钮 ========== */
.sort-toggle,
.add-toggle,
.theme-toggle {
  position: relative;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.3s ease;
  overflow: hidden;
}

.sort-toggle {
  padding: 0 12px;
  font-size: 13px;
  font-weight: 600;
}

.add-toggle {
  padding: 0 12px;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
}

.add-toggle svg {
  width: 16px;
  height: 16px;
}

.theme-toggle {
  width: 36px;
}

.sort-toggle:hover,
.add-toggle:hover,
.theme-toggle:hover {
  border-color: var(--accent-purple);
  color: var(--accent-purple);
  box-shadow: var(--glow-purple);
  transform: scale(1.05);
}

.add-toggle:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
}

.sort-toggle.active {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
}

.theme-icon {
  width: 18px;
  height: 18px;
  position: absolute;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark 模式下：显示太阳图标（切换到 light） */
[data-theme="dark"] .icon-sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}
[data-theme="dark"] .icon-moon {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}

/* Light 模式下：显示月亮图标（切换到 dark） */
[data-theme="light"] .icon-sun {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}
[data-theme="light"] .icon-moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

/* WebSocket 连接状态 */
.connection-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
}

.ws-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-yellow);
  transition: background 0.3s, box-shadow 0.3s;
}

.connection-status.connected .ws-dot {
  background: var(--accent-green);
  box-shadow: var(--glow-green);
}

.connection-status.disconnected .ws-dot {
  background: var(--accent-red);
  box-shadow: var(--glow-red);
}

/* ========== 主内容区 ========== */
.main-content {
  position: relative;
  z-index: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px 24px 40px;
}

/* ========== 服务器卡片网格 ========== */
.server-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 20px;
}

/* ========== Glassmorphism 服务器卡片 ========== */
.server-card {
  position: relative;
  background: var(--bg-card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 22px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.server-grid.sort-mode .server-card {
  cursor: grab;
  user-select: none;
}

.server-grid.sort-mode .server-card.dragging {
  opacity: 0.45;
  transform: scale(0.98);
}

.server-grid.sort-mode .server-card.drag-over {
  border-color: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
}

/* 渐变上边框 — hover 时发光 */
.server-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-cyan), var(--accent-purple));
  background-size: 200% 100%;
  opacity: 0;
  transition: opacity 0.4s;
  animation: gradient-slide 3s linear infinite;
}

@keyframes gradient-slide {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}

/* 彩色光晕 — hover 时显示 */
.server-card::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(
    circle at 50% 50%,
    rgba(139, 92, 246, 0.06) 0%,
    transparent 50%
  );
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

.server-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(139, 92, 246, 0.25);
  transform: translateY(-4px);
  box-shadow: var(--card-shadow), 0 0 30px rgba(139, 92, 246, 0.08);
}

.server-card:hover::before {
  opacity: 1;
}

.server-card:hover::after {
  opacity: 1;
}

.server-card.offline {
  opacity: 0.55;
}

.server-card.offline:hover {
  opacity: 0.75;
}

/* 卡片头部 */
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.card-host {
  display: flex;
  align-items: center;
  gap: 10px;
}

.status-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-indicator.online {
  background: var(--accent-green);
  box-shadow: var(--glow-green);
  animation: pulse-green 2s ease-in-out infinite;
}

.status-indicator.offline {
  background: var(--accent-red);
  box-shadow: var(--glow-red);
}

.hostname {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.platform-badge {
  font-size: 11px;
  font-weight: 500;
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: var(--accent-purple);
  font-family: var(--font-mono);
}

/* 地区信息行 */
.location-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 12px;
  padding: 6px 10px;
  border-radius: var(--radius-xs);
  background: rgba(139, 92, 246, 0.06);
  border: 1px solid rgba(139, 92, 246, 0.12);
}

.location-icon {
  font-size: 14px;
  flex-shrink: 0;
}

.location-text {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

/* 系统版本信息行 */
.sys-info-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.sys-info-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  background: rgba(0, 240, 255, 0.04);
  border: 1px solid rgba(0, 240, 255, 0.1);
  color: var(--text-secondary);
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: 400;
}

/* 仪表盘区域 — CPU 圆形仪表 */
.gauges-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.gauge-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.gauge-svg {
  width: 80px;
  height: 80px;
  transform: rotate(-90deg);
}

.gauge-bg {
  fill: none;
  stroke: var(--border-color);
  stroke-width: 6;
}

.gauge-fill {
  fill: none;
  stroke-width: 6;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.8s cubic-bezier(0.4, 0, 0.2, 1), stroke 0.3s;
  filter: drop-shadow(0 0 6px currentColor);
}

.gauge-text {
  font-size: 15px;
  font-weight: 700;
  font-family: var(--font-mono);
  fill: var(--text-primary);
  transform: rotate(90deg);
  transform-origin: center;
}

.gauge-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* 进度条区域 — 内存 / 磁盘 */
.bars-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.bar-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

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

.bar-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.bar-value {
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.bar-track {
  height: 6px;
  background: var(--border-color);
  border-radius: 3px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.3s;
  position: relative;
}

.bar-fill::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 20px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2));
  border-radius: 3px;
}

/* 网络流量区域 */
.network-section {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
}

.net-item {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xs);
  backdrop-filter: blur(4px);
}

.net-icon {
  font-size: 14px;
  width: 24px;
  text-align: center;
}

.net-icon.upload { color: var(--accent-green); }
.net-icon.download { color: var(--accent-blue); }

.net-info {
  display: flex;
  flex-direction: column;
}

.net-speed {
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.net-label {
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* 底部信息 — 运行时间 + 负载 */
.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 12px;
  border-top: 1px solid var(--glass-border);
}

.footer-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-icon {
  font-size: 12px;
  color: var(--text-muted);
}

.footer-label {
  font-size: 11px;
  color: var(--text-muted);
}

.footer-value {
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

/* ========== 网络流量迷你图 ========== */
.net-chart-container {
  width: 100%;
  height: 40px;
  margin-bottom: 14px;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xs);
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--glass-border);
}

.net-chart-canvas {
  width: 100%;
  height: 100%;
}

/* ========== 空状态 ========== */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  animation: fadeIn 0.6s ease-out;
}

.empty-state.hidden {
  display: none;
}

.empty-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  color: var(--text-muted);
  opacity: 0.5;
}

.empty-icon svg {
  width: 100%;
  height: 100%;
}

.empty-state h2 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.empty-state code {
  display: inline-block;
  padding: 10px 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-cyan);
  word-break: break-all;
  backdrop-filter: blur(8px);
}

/* ========== 动画 ========== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.server-card {
  animation: slideUp 0.4s ease-out both;
}

/* ========== 颜色工具类 ========== */
.color-green { color: var(--accent-green); }
.color-yellow { color: var(--accent-yellow); }
.color-orange { color: var(--accent-orange); }
.color-red { color: var(--accent-red); }
.color-cyan { color: var(--accent-cyan); }

.bg-green { background-color: var(--accent-green); }
.bg-yellow { background-color: var(--accent-yellow); }
.bg-orange { background-color: var(--accent-orange); }
.bg-red { background-color: var(--accent-red); }
.bg-cyan { background-color: var(--accent-cyan); }
.bg-blue { background-color: var(--accent-blue); }

/* ========== 响应式 ========== */
@media (max-width: 768px) {
  .top-bar {
    flex-direction: column;
    gap: 10px;
    padding: 10px 16px;
  }

  .top-bar-right {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
  }

  .main-content {
    padding: 12px;
  }

  .server-grid {
    grid-template-columns: 1fr;
  }

  .gauges-row {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .logo-text {
    font-size: 15px;
  }

  .pill {
    font-size: 11px;
    padding: 4px 8px;
  }
}

/* ========== 滚动条样式 ========== */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ========== 卡片删除按钮 ========== */
.card-delete-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 50%;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  opacity: 0;
  transform: scale(0.85);
  transition: all 0.2s ease;
  z-index: 5;
}

.card-delete-btn svg {
  width: 14px;
  height: 14px;
}

.server-card:hover .card-delete-btn {
  opacity: 1;
  transform: scale(1);
}

.card-delete-btn:hover {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.4);
  color: var(--accent-red);
  box-shadow: var(--glow-red);
}

/* 排序模式下不显示删除按钮，避免误操作 */
.server-grid.sort-mode .card-delete-btn {
  display: none;
}

/* ========== Modal 弹窗 ========== */
body.modal-open {
  overflow: hidden;
}

.modal-mask {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(5, 8, 14, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: fadeIn 0.2s ease-out;
}

[data-theme="light"] .modal-mask {
  background: rgba(15, 23, 42, 0.35);
}

.modal-mask[hidden] {
  display: none;
}

.modal-card {
  width: 100%;
  max-width: 720px;
  max-height: calc(100vh - 48px);
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45), 0 0 60px rgba(139, 92, 246, 0.15);
  overflow: hidden;
  animation: modalIn 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--glass-border);
  background: var(--bg-card);
}

.modal-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.modal-title svg {
  color: var(--accent-cyan);
}

.modal-close {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.modal-close svg { width: 14px; height: 14px; }

.modal-close:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.4);
  color: var(--accent-red);
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
}

.modal-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.6;
}

.modal-desc span {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-weight: 600;
}

/* 命令展示区 */
.cmd-section {
  margin-bottom: 16px;
}

.cmd-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.cmd-section-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.copy-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.copy-btn svg { width: 13px; height: 13px; }

.copy-btn:hover {
  background: rgba(0, 240, 255, 0.18);
  box-shadow: var(--glow-cyan);
}

.copy-btn.copied {
  color: var(--accent-green);
  background: rgba(16, 185, 129, 0.15);
  border-color: rgba(16, 185, 129, 0.4);
  box-shadow: var(--glow-green);
}

.cmd-block {
  display: block;
  padding: 12px 14px;
  margin: 0;
  background: var(--bg-primary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--accent-cyan);
  white-space: pre-wrap;
  word-break: break-all;
  overflow-x: auto;
  max-height: 240px;
}

[data-theme="light"] .cmd-block {
  background: #0f172a;
  color: #67e8f9;
  border-color: rgba(255, 255, 255, 0.1);
}

.cmd-hint {
  margin-top: 6px;
  font-size: 11.5px;
  color: var(--text-muted);
  line-height: 1.5;
}

.cmd-extra {
  margin: 12px 0 16px;
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
}

.cmd-extra summary {
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-secondary);
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
}

.cmd-extra summary::-webkit-details-marker { display: none; }

.cmd-extra summary::before {
  content: "▶";
  font-size: 9px;
  transition: transform 0.2s ease;
  color: var(--text-muted);
}

.cmd-extra[open] summary::before {
  transform: rotate(90deg);
}

.cmd-extra summary:hover { color: var(--accent-cyan); }

.cmd-extra[open] {
  padding-bottom: 14px;
}

.cmd-extra .cmd-section { margin-top: 14px; margin-bottom: 0; }
.cmd-extra .cmd-section + .cmd-section { margin-top: 14px; }

.cmd-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 8px;
  padding: 12px;
  margin-top: 8px;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
}

.cmd-meta-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.cmd-meta-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cmd-meta-item code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-purple);
  word-break: break-all;
  white-space: normal;
}

@media (max-width: 768px) {
  .modal-card { max-width: 100%; }
  .modal-body { padding: 14px; }
  .cmd-block { font-size: 11.5px; }
}
/* Hidden name editor: quiet feedback while holding, native dialog focus trap. */
.server-card:focus-visible { outline: 2px solid var(--accent-cyan); outline-offset: 4px; }
.server-card.name-holding { user-select: none; }
.server-card.name-holding::after {
  content: ''; position: absolute; top: auto; bottom: 0; left: 0; height: 2px; width: 100%;
  background: linear-gradient(90deg, #10b981, #00f0ff); transform-origin: left;
  animation: nameHold 3s linear both; pointer-events: none;
}
@keyframes nameHold { from { transform: scaleX(0); opacity: 0; } 12% { opacity: .65; } to { transform: scaleX(1); opacity: .8; } }
.location-override { font-weight: 600; }
.rename-dialog {
  width: min(420px, calc(100vw - 32px)); box-sizing: border-box; margin: auto;
  padding: 30px; border: 1px solid var(--border-color); border-radius: 20px;
  background: var(--bg-secondary); color: var(--text-primary); font-family: var(--font-sans);
  box-shadow: 0 24px 100px #0005;
}
.rename-dialog::backdrop { background: #050b185e; backdrop-filter: blur(8px); }
.rename-dialog[open] { animation: renameAppear .18s ease-out; }
@keyframes renameAppear { from { opacity: 0; transform: translateY(8px) scale(.98); } to { opacity: 1; transform: none; } }
.rename-eyebrow { color: var(--accent-green); font: 10px var(--font-mono); letter-spacing: .16em; margin-bottom: 10px; }
.rename-dialog h2 { margin: 0 0 10px; font-size: 22px; font-weight: 600; }
.rename-dialog p { font-size: 13px; color: var(--text-secondary); line-height: 1.7; }
.rename-host { margin: 18px 0 24px; font-size: 11px; color: var(--text-muted); overflow-wrap: anywhere; }
.rename-host code { margin-left: 8px; color: var(--text-secondary); font-family: var(--font-mono); }
.rename-dialog label { display: block; font-size: 12px; font-weight: 500; margin-bottom: 8px; }
.rename-dialog input {
  width: 100%; box-sizing: border-box; padding: 12px 14px; font: inherit; font-size: 15px;
  border: 1px solid var(--border-color); border-radius: 10px; outline: none;
  background: var(--bg-primary); color: var(--text-primary);
}
.rename-dialog input:focus { border-color: var(--accent-green); box-shadow: 0 0 0 3px #10b98118; }
#rename-error { min-height: 22px; margin: 7px 0 17px; color: var(--accent-red); font-size: 12px; }
.rename-actions { display: flex; align-items: center; gap: 8px; }
.rename-actions button { padding: 9px 12px; border: 1px solid var(--border-color); border-radius: 9px; font: inherit; font-size: 12px; background: transparent; color: var(--text-secondary); cursor: pointer; }
.rename-actions button:hover { background: var(--bg-primary); color: var(--text-primary); }
.rename-actions .rename-restore { margin-right: auto; border-color: transparent; padding-left: 0; color: var(--text-muted); }
.rename-actions .rename-primary { background: #10b981; border-color: #10b981; color: #042e23; font-weight: 600; }
.rename-actions .rename-primary:hover { background: #34d399; color: #042e23; }
.rename-actions button:disabled, .rename-dialog input:disabled { opacity: .55; cursor: wait; }
@media (prefers-reduced-motion: reduce) {
  .rename-dialog[open], .server-card.name-holding::after { animation: none; }
}

/* Shanghai ICMP quality */
.network-quality { margin: 12px 0 0; padding: 14px 18px; border-top: 1px solid var(--border-color); color: var(--text-primary); }
.nq-heading { display:flex; justify-content:space-between; gap:8px; font-size:10px; color:var(--text-secondary); margin-bottom:12px; }
.nq-row { display:grid; grid-template-columns:64px minmax(0,1fr) minmax(0,1fr); align-items:center; gap:12px; margin:10px 0; }
.nq-name { font-size:11px; white-space:nowrap; }
.nq-metric { min-width:0; }
.nq-value { display:block; font-size:12px; font-variant-numeric:tabular-nums; margin-bottom:5px; }
.nq-history { display:flex; gap:2px; height:9px; }
.nq-block { flex:1; min-width:1px; border-radius:1px; background:var(--border-color); }
.nq-block.good { background:#10b981; } .nq-block.fair { background:#84b64b; } .nq-block.warn { background:#f59e0b; } .nq-block.bad { background:#ef4444; } .nq-block.error { background:#94a3b8; }
.nq-note { font-size:9px; color:var(--text-secondary); margin-top:11px; }
.nq-stale { opacity:.5; }
@media(max-width:420px) { .network-quality { padding:12px; } .nq-row {gap:8px;grid-template-columns:58px minmax(0,1fr) minmax(0,1fr);} .nq-heading{font-size:9px;} .nq-history{gap:1px;} }

/* Five-minute square history and independent breathing card borders.
   Design reference: 21st.dev Glowing Effect / Glowing Card. */
.server-card { border-radius:20px; border-color:hsla(var(--card-hue,180),75%,65%,.24); box-shadow:var(--card-shadow),0 0 22px hsla(var(--card-hue,180),75%,60%,.08); }
@property --edge-angle { syntax:'<angle>'; initial-value:0deg; inherits:false; }
.server-card::before {
 content:''; position:absolute; inset:0; width:auto; height:auto; padding:2px; border:0; border-radius:inherit;
 background:conic-gradient(from var(--edge-angle),
 hsla(var(--card-hue,180),90%,65%,.1) 0deg,
 hsla(var(--card-hue,180),90%,65%,.15) 45deg,
 hsl(var(--card-hue,180),95%,65%) 80deg,
 hsl(calc(var(--card-hue,180) + 65),100%,75%) 115deg,
 #fff 130deg,
 hsl(calc(var(--card-hue,180) + 140),95%,68%) 145deg,
 hsla(calc(var(--card-hue,180) + 200),90%,65%,.15) 190deg,
 hsla(var(--card-hue,180),90%,65%,.1) 260deg,
 hsl(calc(var(--card-hue,180) + 260),95%,68%) 305deg,
 hsla(var(--card-hue,180),90%,65%,.1) 360deg);
 -webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
 -webkit-mask-composite:xor; mask-composite:exclude;
 pointer-events:none; z-index:2; transform:none; box-shadow:none; opacity:.95;
 animation:card-edge-flow var(--breath-duration,5s) linear var(--breath-delay,0s) infinite;
}
@keyframes card-edge-flow { to { --edge-angle:360deg; } }
.server-card:hover { border-color:hsla(var(--card-hue,180),75%,65%,.6); box-shadow:var(--card-shadow),0 0 30px hsla(var(--card-hue,180),75%,60%,.18); }
.server-card::after { background:radial-gradient(circle at 50% 50%,hsla(var(--card-hue,180),75%,60%,.07),transparent 50%); }
.server-card.offline::before { animation:none; opacity:.18; }

.network-quality { margin:12px 16px; padding:14px 16px 10px; border:1px solid var(--border-color); border-radius:12px; background:rgba(127,140,160,.035); }
.nq-heading { font-size:10px; letter-spacing:.02em; margin-bottom:2px; }
.nq-row { grid-template-columns:1fr auto; gap:8px; margin:0; padding:11px 0; border-bottom:1px solid var(--border-color); }
.nq-row:last-of-type {border-bottom:0;}
.nq-name {font-size:11px;font-weight:600;}
.nq-value {display:flex;gap:8px;align-items:center;font-size:11px;margin:0;font-variant-numeric:tabular-nums;}
.nq-separator {color:var(--text-secondary);opacity:.55;}
.nq-history {grid-column:1 / -1;display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:5px;height:auto;max-width:252px;}
.nq-block {display:block;min-width:0;width:100%;height:auto;aspect-ratio:1;border-radius:3px;box-shadow:inset 0 0 0 1px rgba(127,140,160,.14);}
.nq-block.empty {background:rgba(127,140,160,.12);}
.nq-block:hover {outline:1px solid var(--text-secondary);outline-offset:2px;}
.nq-note {font-size:9px;margin-top:6px;letter-spacing:.02em;}
@media(max-width:420px) { .network-quality {margin:12px;padding:12px;} .nq-row {grid-template-columns:1fr auto;gap:7px;} .nq-history {gap:4px;} }
@media(prefers-reduced-motion:reduce) { .server-card::before {animation:none;opacity:.55;} }