* {
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  margin: 0;
  min-height: 100vh;
  padding: 38px 18px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  color: #e2e8f0;
  background:
    radial-gradient(circle at 16% 0%, rgba(16, 185, 129, 0.16), transparent 30rem),
    radial-gradient(circle at 84% 8%, rgba(59, 130, 246, 0.18), transparent 28rem),
    linear-gradient(145deg, #070b14 0%, #090d16 55%, #07111d 100%);
}

.container {
  width: 100%;
  max-width: 620px;
}

.hero {
  text-align: center;
  margin-bottom: 22px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  padding: 7px 12px;
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.08);
  color: #a7f3d0;
  font-size: 12px;
  font-weight: 700;
}

.pulse-dot,
.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.pulse-dot {
  background: #10b981;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6);
  animation: pulse 1.8s infinite;
}

.title {
  margin: 0;
  text-align: center;
  font-size: 28px;
  line-height: 1.22;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(90deg, #10b981, #38bdf8, #3b82f6);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.card,
.guide-box {
  position: relative;
  overflow: hidden;
  background: rgba(17, 24, 39, 0.86);
  border: 1px solid rgba(31, 41, 55, 0.95);
  border-radius: 16px;
  box-shadow: 0 14px 38px rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(12px);
}

.card::before,
.guide-box::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.45), transparent);
}

.card {
  padding: 22px;
  margin-bottom: 24px;
}

.label {
  display: block;
  margin-bottom: 8px;
  color: #9ca3af;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-weight: 600;
  font-size: 14px;
}

.dot {
  box-shadow: 0 0 10px currentColor;
}

.online {
  color: #10b981;
  background: #10b981;
}

.checking {
  color: #f59e0b;
  background: #f59e0b;
}

.offline {
  color: #ef4444;
  background: #ef4444;
  animation: none;
}

.status-text-offline {
  color: #fca5a5;
}

.sub-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 14px;
  border: 1px solid rgba(31, 41, 55, 0.95);
  border-radius: 10px;
  background: rgba(3, 7, 18, 0.9);
  color: #34d399;
  font: 13px "Consolas", monospace;
  word-break: break-all;
}

.server-info {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 12px;
}

.server-info-item {
  padding: 12px;
  border: 1px solid rgba(31, 41, 55, 0.95);
  border-radius: 10px;
  background: rgba(3, 7, 18, 0.52);
}

.server-info-item span {
  display: block;
  margin-bottom: 5px;
  color: #94a3b8;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.server-info-item strong,
.node-list {
  display: block;
  color: #e5f7ff;
  font-size: 13px;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.copy-btn {
  flex: 0 0 auto;
  padding: 7px 12px;
  border: 1px solid #374151;
  border-radius: 8px;
  background: #1f2937;
  color: #cbd5e1;
  cursor: pointer;
  font-size: 11px;
  font-family: inherit;
  font-weight: 700;
  white-space: nowrap;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.copy-btn:hover {
  transform: translateY(-1px);
  background: #2b3748;
  color: #f3f4f6;
}

.copy-btn.copied {
  background: #10b981;
  border-color: #10b981;
  color: #fff;
}

.instruction-section {
  margin-top: 25px;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  padding-left: 9px;
  border-left: 3px solid #3b82f6;
  color: #f9fafb;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.guide-box {
  margin-bottom: 16px;
  padding: 16px;
  color: #d1d5db;
  font-size: 13px;
  line-height: 1.6;
}

.guide-box p {
  margin: 0 0 10px;
}

.guide-box p:last-child {
  margin-bottom: 0;
}

.sub-heading {
  margin-top: 12px !important;
}

.guide-box ul {
  margin: 0;
  padding-left: 20px;
}

.guide-box li {
  margin-bottom: 6px;
}

.highlight,
.guide-box a {
  color: #60a5fa;
  font-weight: 700;
  text-decoration: none;
}

.guide-box a:hover {
  color: #93c5fd;
  text-decoration: underline;
}

.table-container {
  overflow-x: hidden;
  margin-top: 10px;
  border-radius: 10px;
}

table {
  width: 100%;
  table-layout: fixed;
  border-collapse: collapse;
  font-size: 12px;
  text-align: left;
}

th,
td {
  padding: 8px 10px;
  border: 1px solid #1f2937;
  vertical-align: top;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: break-word;
}

th {
  background: #1f2937;
  color: #f9fafb;
}

tr:nth-child(even) {
  background: rgba(21, 31, 50, 0.78);
}

table th:first-child,
table td:first-child {
  width: 17%;
}

table th:nth-child(2),
table td:nth-child(2),
table th:nth-child(3),
table td:nth-child(3) {
  width: 41.5%;
}

.footer {
  margin-top: 30px;
  text-align: center;
  color: #64748b;
  font-size: 12px;
  line-height: 1.55;
}

.footer a {
  color: #60a5fa;
  font-weight: 700;
  text-decoration: none;
}

.footer a:hover {
  color: #93c5fd;
  text-decoration: underline;
}

@keyframes pulse {
  70% { box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

@media (max-width: 540px) {
  body {
    padding: 28px 12px;
  }

  .title {
    font-size: 24px;
  }

  .card,
  .guide-box {
    padding: 15px;
  }

  .sub-box {
    flex-direction: column;
    align-items: stretch;
  }

  .copy-btn {
    width: 100%;
  }
}