:root {
  --primary-color: #4361ee;
  --primary-hover: #3a56d4;
  --text-color: #2b2d42;
  --bg-color: #f8f9fa;
  --card-bg: #ffffff;
  --border-color: #e9ecef;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --hover-bg: #f1f3f5;
  --even-row: #f8f9fa;
  --transition: all 0.3s ease;
  --status-card-bg: #ffffff;
  --status-card-text: #2b2d42;
  --primary-color-c: #3252df;
  --warning-text-color: #ff0800;
}

[data-theme="dark"] {
  --primary-color: #3252df;
  --primary-hover: #2360cf;
  --text-color: #f8f9fa;
  --bg-color: #121212;
  --card-bg: #1e1e1e;
  --border-color: #333;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  --hover-bg: #2d2d2d;
  --even-row: #252525;
  --status-card-bg: #252525;
  --status-card-text: #f8f9fa;
  --primary-color-c: #5878fa;
  --warning-text-color: #ff423c;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--bg-color);
  color: var(--text-color);
  transition: var(--transition);
  min-height: 100vh;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

h1 {
  color: var(--primary-color-c);
  margin: 0;
  font-size: 2rem;
  font-weight: 600;
}

.controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.info-note {
  margin: 0;
  color: var(--text-color);
  opacity: 0.8;
  font-size: 0.9rem;
}

button {
  transition: var(--transition);
  cursor: pointer;
  border: none;
  border-radius: 8px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.refresh-btn {
  background-color: var(--primary-color);
  color: white;
  padding: 0.75rem 1.25rem;
  font-size: 1rem;
}

.refresh-btn:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
}

.refresh-btn:active {
  transform: translateY(0);
}

.refresh-btn i {
  transition: transform 0.5s ease;
}

.refresh-btn.loading i {
  transform: rotate(360deg);
}

.theme-toggle {
  background: transparent;
  color: var(--text-color);
  font-size: 1.25rem;
  padding: 0.5rem;
  position: relative;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-toggle:hover {
  background-color: var(--hover-bg);
}

.theme-toggle i {
  position: absolute;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.theme-toggle .fa-moon {
  opacity: 0;
  transform: scale(0.8);
}

[data-theme="dark"] .theme-toggle .fa-moon {
  opacity: 1;
  transform: scale(1);
}

[data-theme="dark"] .theme-toggle .fa-sun {
  opacity: 0;
  transform: scale(0.8);
}

.stats-container {
  background-color: var(--card-bg);
  border-radius: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 1rem 1.5rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

th {
  background-color: var(--primary-color);
  color: white;
  font-weight: 500;
}

tr {
  transition: var(--transition);
}

tr:hover {
  background-color: var(--hover-bg);
}

tr:nth-child(even) {
  background-color: var(--even-row);
}

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

tbody tr {
  animation: fadeIn 0.3s ease forwards;
  opacity: 0;
}

tbody tr:nth-child(1) { animation-delay: 0.05s; }
tbody tr:nth-child(2) { animation-delay: 0.1s; }
tbody tr:nth-child(3) { animation-delay: 0.15s; }
tbody tr:nth-child(4) { animation-delay: 0.2s; }
tbody tr:nth-child(5) { animation-delay: 0.25s; }
tbody tr:nth-child(6) { animation-delay: 0.3s; }
tbody tr:nth-child(7) { animation-delay: 0.35s; }
tbody tr:nth-child(8) { animation-delay: 0.4s; }
tbody tr:nth-child(9) { animation-delay: 0.45s; }
tbody tr:nth-child(10) { animation-delay: 0.5s; }

@media (max-width: 768px) {
  .container {
    padding: 1.5rem 1rem;
  }

  th, td {
    padding: 0.75rem 1rem;
  }

  table {
    display: block;
    overflow-x: auto;
  }
}

.status-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.status-card {
  background-color: var(--status-card-bg);
  color: var(--status-card-text);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.status-card h3 {
  margin-top: 0;
  margin-bottom: 1rem;
  color: var(--primary-color-c);
  font-size: 1.1rem;
}

.online-count {
  font-size: 2rem;
  font-weight: 600;
  color: var(--status-card-text);
}

.online-players,
.top-players {
  list-style: none;
  padding: 0;
  margin: 0;
}

.online-players li,
.top-players li {
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
}

.online-players li:last-child,
.top-players li:last-child {
  border-bottom: none;
}

.player-name {
  font-weight: 500;
}

.player-time {
  color: var(--primary-color-c);
  opacity: 0.8;
}

.warning {
  color: var(--warning-text-color);
  margin: 0;
}

@media (max-width: 600px) and (orientation: portrait) {
  .container {
    padding: 1rem 0.75rem;
  }

  h1 {
    font-size: 1.5rem;
  }

  .header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
  }

  .status-cards {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .status-card {
    padding: 1rem;
  }

  .online-count {
    font-size: 1.75rem;
  }

  table {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  th, td {
    padding: 0.5rem;
    font-size: 0.85rem;
    white-space: nowrap;
  }

  .controls {
    flex-direction: column;
    align-items: flex-start;
  }

  .refresh-btn {
    width: 100%;
    justify-content: center;
    padding: 0.5rem;
  }

  .warning {
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
  }

  th:nth-child(1), td:nth-child(1) {
    min-width: 100px;
  }

  th:nth-child(2), td:nth-child(2),
  th:nth-child(3), td:nth-child(3),
  th:nth-child(4), td:nth-child(4) {
    min-width: 80px;
  }
}

@media (max-width: 400px) {
  .container {
    padding: 1rem 0.5rem;
  }

  h1 {
    font-size: 1.3rem;
  }

  .status-card h3 {
    font-size: 1rem;
  }

  .player-name, .player-time {
    font-size: 0.9rem;
  }
}

.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0,0,0,0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  display: none;
}

.loading-overlay.active {
  display: flex;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 5px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 1s ease-in-out infinite;
}

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

.license-footer {
  margin-top: 3rem;
  padding: 1.5rem 0;
  text-align: center;
  color: var(--text-color);
  opacity: 0.8;
  font-size: 0.85rem;
  border-top: 1px solid var(--border-color);
}

.license-footer a {
  color: var(--primary-color-c);
  text-decoration: none;
}

.license-footer a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .license-footer {
    margin-top: 2rem;
    padding: 1rem 0;
    font-size: 0.8rem;
  }
}

.player-counts {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.count-item {
  display: flex;
  justify-content: space-between;
}

.count-label {
  font-weight: 500;
}

.count-value {
  color: var(--primary-color-c);
}

.player-lists {
  display: flex;
  gap: 20px;
}

.player-list {
  flex: 1;
}

.player-list h4 {
  margin-bottom: 8px;
  color: var(--primary-color-c);
}

.status-section {
  margin: 2rem 0;
}

.status-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 1rem;
}

@media (max-width: 768px) {
  .status-grid {
    grid-template-columns: 1fr;
  }

  .player-lists {
    flex-direction: column;
  }
}

.status-item {
  background: var(--card-bg);
  padding: 1rem;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.status-item h3 {
  margin-top: 0;
  color: var(--primary-color-c);
}

.memory-stats, .performance-stats {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.memory-stats div, .performance-stats div {
  font-size: 0.9rem;
}

canvas {
  max-height: 300px;
  width: 100% !important;
}

.error-message {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: #ff4444;
  color: white;
  padding: 10px 20px;
  border-radius: 5px;
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 1000;
}

.error-message.show {
  opacity: 1;
}

.performance-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
  margin-bottom: 15px;
}

.metric {
  background: var(--card-bg);
  padding: 10px;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.metric-label {
  font-weight: bold;
  display: block;
  margin-bottom: 5px;
  color: var(--primary-color-c);
}

.metric-value {
  font-size: 1.5rem;
  font-family: monospace;
}

@media (max-width: 600px) {
  .performance-metrics {
    grid-template-columns: 1fr;
  }
}


.chart-container {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.chart-wrapper {
  position: relative;
  height: 300px; /* 固定高度 */
  width: 100%;
}

.metric-display {
  display: flex;
  gap: 20px;
  justify-content: center;
}

.metric {
  background: var(--card-bg);
  padding: 12px 20px;
  border-radius: 8px;
  box-shadow: var(--shadow);
  min-width: 120px;
  text-align: center;
}

.metric-label {
  font-weight: bold;
  display: block;
  margin-bottom: 5px;
  color: var(--primary-color-c);
  font-size: 0.9rem;
}

.metric-value {
  font-size: 1.8rem;
  font-family: monospace;
  font-weight: bold;
}

@media (max-width: 768px) {
  .chart-wrapper {
    height: 250px;
  }

  .metric-display {
    flex-direction: column;
    gap: 10px;
  }

  .metric {
    padding: 10px 15px;
  }
}