:root {
  --bg-gradient-start: #f0f7ff;
  --bg-gradient-end: #f6fff5;
  --card-bg: #ffffff;
  --card-border: #e7eef3;
  --text-primary: #1f2d3d;
  --text-secondary: #5b6b7a;
  --text-muted: #8a98a6;
  --accent: #5aa86b;
  --accent-soft: #e8f5ec;
  --accent-blue: #7cb5e0;
  --accent-blue-soft: #eaf4fc;
  --online: #3aa55d;
  --offline: #d65a5a;
  --loading: #c9a64b;
  --error-bg: #fff4f4;
  --error-border: #f4d3d3;
  --error-text: #a23a3a;
  --shadow: 0 6px 24px rgba(80, 110, 140, 0.08);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", Roboto, sans-serif;
  color: var(--text-primary);
  background:
    radial-gradient(circle at 15% 10%, #f4fbf2 0%, transparent 45%),
    radial-gradient(circle at 85% 90%, #eef6fd 0%, transparent 50%),
    linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-end));
  background-attachment: fixed;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 20px 32px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 24px;
}

.page-header {
  text-align: center;
}

.title {
  margin: 0 0 8px;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--text-primary);
}

.subtitle {
  margin: 0;
  color: var(--text-secondary);
  font-size: 15px;
}

.addr-inline {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  background: var(--accent-soft);
  color: #3a7a4a;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 14px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.server-identity {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.server-icon {
  width: 56px;
  height: 56px;
  border-radius: 10px;
  image-rendering: pixelated;
  background: var(--accent-soft);
  border: 1px solid var(--card-border);
  flex-shrink: 0;
}

.identity-text {
  min-width: 0;
}

.server-name {
  margin: 0 0 4px;
  font-size: 18px;
  font-weight: 600;
  word-break: break-all;
}

.status-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-secondary);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  background: var(--loading);
  box-shadow: 0 0 0 4px rgba(201, 166, 75, 0.18);
}

.status-dot.status-online {
  background: var(--online);
  box-shadow: 0 0 0 4px rgba(58, 165, 93, 0.18);
}

.status-dot.status-offline {
  background: var(--offline);
  box-shadow: 0 0 0 4px rgba(214, 90, 90, 0.18);
}

.status-dot.status-loading {
  animation: pulse 1.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.status-text {
  font-weight: 500;
}

.status-text.status-online { color: var(--online); }
.status-text.status-offline { color: var(--offline); }

.refresh-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-blue-soft);
  color: #2c6791;
  border: 1px solid #cfe3f3;
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.15s ease, transform 0.1s ease;
  font-family: inherit;
}

.refresh-btn:hover:not(:disabled) {
  background: #dbecf8;
}

.refresh-btn:active:not(:disabled) {
  transform: scale(0.98);
}

.refresh-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.refresh-icon {
  display: inline-block;
  font-size: 16px;
  line-height: 1;
}

.refresh-btn.is-loading .refresh-icon {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.error-box {
  margin-top: 18px;
  background: var(--error-bg);
  color: var(--error-text);
  border: 1px solid var(--error-border);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 14px;
  word-break: break-word;
}

.info-grid {
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.info-item {
  background: #fafdfa;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 12px 14px;
}

.info-item dt {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.info-item dd {
  margin: 0;
  font-size: 15px;
  color: var(--text-primary);
  font-weight: 500;
  word-break: break-all;
}

.section-title {
  margin: 22px 0 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.4px;
}

.motd-section {
  margin-top: 4px;
}

.motd-text {
  margin: 0;
  background: #f6fbf6;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 12px 14px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 14px;
  color: #2f4737;
  white-space: pre-wrap;
  word-break: break-word;
}

.players-section {
  margin-top: 4px;
}

.players-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.players-list li {
  background: var(--accent-soft);
  color: #2e6e3e;
  border: 1px solid #d6ebdc;
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 500;
}

.last-update {
  margin: 18px 0 0;
  font-size: 12px;
  color: var(--text-muted);
  text-align: right;
}

.page-footer {
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}

.page-footer a {
  color: var(--accent-blue);
  text-decoration: none;
}

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

@media (max-width: 480px) {
  .container { padding: 28px 14px 20px; }
  .title { font-size: 22px; }
  .card { padding: 18px; }
  .card-header { gap: 12px; }
  .refresh-btn { width: 100%; justify-content: center; }
  .server-icon { width: 48px; height: 48px; }
}