:root {
  --ink: #e8eefc;
  --muted: #9aabcc;
  --line: rgba(180, 204, 255, 0.22);
  --panel: rgba(8, 14, 32, 0.72);
  --gold: #f0c36a;
  --ok: #7dffa8;
  --bad: #ff8d8d;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  color: var(--ink);
  font-family: "Noto Sans CJK SC", "Source Han Sans SC", "PingFang SC", sans-serif;
  background: #050814;
}

#stars {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

main {
  position: relative;
  z-index: 1;
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 64px 0 80px;
}

.eyebrow {
  letter-spacing: 0.28em;
  color: var(--gold);
  font-size: 12px;
  margin: 0 0 12px;
}

h1 {
  margin: 0;
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.lead, .muted {
  color: var(--muted);
  line-height: 1.7;
}

h2 {
  margin: 36px 0 14px;
  font-size: 18px;
  font-weight: 600;
}

.status, .signal, .card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  backdrop-filter: blur(8px);
}

.status {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 16px;
  align-items: center;
  padding: 18px 20px;
}

.status p { margin: 0; grid-column: 1; color: var(--muted); }

.dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 12px var(--gold);
}

.dot.ok { background: var(--ok); box-shadow: 0 0 12px var(--ok); }
.dot.bad { background: var(--bad); box-shadow: 0 0 12px var(--bad); }

button, input {
  font: inherit;
  color: var(--ink);
}

button {
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 999px;
  padding: 8px 16px;
  cursor: pointer;
}

button:hover { border-color: var(--gold); color: var(--gold); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}

.card { padding: 16px 18px; }
.card h3 { margin: 0 0 6px; font-size: 14px; color: var(--gold); font-weight: 500; }
.card strong { display: block; font-size: 22px; margin-bottom: 8px; }
.card p { margin: 0; color: var(--muted); line-height: 1.6; }

.signal { padding: 18px 20px 8px; }

form {
  display: flex;
  gap: 10px;
  margin: 12px 0 8px;
}

input {
  flex: 1;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 12px;
  padding: 10px 12px;
}

ul { list-style: none; padding: 0; margin: 8px 0 12px; }
li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
}
li span:first-child { color: var(--ink); }

@media (max-width: 640px) {
  .status { grid-template-columns: 1fr; }
  form { flex-direction: column; }
}