:root {
  --bg: #060912;
  --panel: rgba(13, 22, 40, 0.72);
  --panel-line: rgba(0, 229, 255, 0.25);
  --cyan: #00e5ff;
  --green: #00ff9d;
  --orange: #ffb300;
  --red: #ff3b5c;
  --purple: #b388ff;
  --text: #cfe8ff;
  --muted: #6f86a8;
  --grid-line: rgba(0, 229, 255, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(0, 120, 255, 0.12), transparent 60%),
    radial-gradient(900px 500px at 0% 110%, rgba(179, 136, 255, 0.10), transparent 55%),
    linear-gradient(180deg, #05070f, #060912 40%, #04060d);
  background-attachment: fixed;
  min-height: 100vh;
}

/* 网格底纹 */
body::before {
  content: "";
  position: fixed; inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
  pointer-events: none;
  z-index: 0;
}

/* 顶栏 */
.topbar {
  position: relative; z-index: 2;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px;
  border-bottom: 1px solid var(--panel-line);
  background: linear-gradient(90deg, rgba(0, 229, 255, 0.08), rgba(0,0,0,0) 60%);
  backdrop-filter: blur(6px);
}
.brand { display: flex; align-items: center; gap: 14px; }
.logo {
  font-size: 30px;
  filter: drop-shadow(0 0 8px var(--cyan));
  animation: float 3s ease-in-out infinite;
}
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-4px)} }
.topbar h1 {
  margin: 0; font-size: 20px; letter-spacing: 3px;
  background: linear-gradient(90deg, #fff, var(--cyan));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.topbar .sub { font-size: 11px; letter-spacing: 2px; color: var(--muted); }
.top-meta { display: flex; align-items: center; gap: 14px; font-variant-numeric: tabular-nums; }
.clock { font-size: 22px; font-weight: 700; color: var(--cyan); text-shadow: 0 0 10px rgba(0,229,255,.5); letter-spacing: 2px; }
.dot { width: 11px; height: 11px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); }
.dot.off { background: var(--red); box-shadow: 0 0 10px var(--red); animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: .3; } }
.muted { color: var(--muted); font-size: 12px; }

/* 告警滚动条 */
.ticker {
  position: relative; z-index: 2;
  display: flex; align-items: center; gap: 12px;
  padding: 8px 22px; overflow: hidden;
  border-bottom: 1px solid rgba(255, 59, 92, 0.18);
  background: rgba(255, 59, 92, 0.05);
}
.ticker-label { color: var(--orange); font-weight: 700; white-space: nowrap; font-size: 13px; }
.ticker-track { flex: 1; overflow: hidden; }
#ticker-text { display: inline-block; white-space: nowrap; color: #ffd0d8; font-size: 13px; }
.ticker-track.scroll #ticker-text { animation: marquee 18s linear infinite; }
@keyframes marquee { from { transform: translateX(100%);} to { transform: translateX(-100%);} }

/* 网格 */
.grid {
  position: relative; z-index: 1;
  display: flex; flex-wrap: wrap; gap: 18px; padding: 20px 22px;
  align-items: start; justify-content: center;
}
.card {
  border: 1px solid var(--panel-line);
  border-radius: 14px;
  background: var(--panel);
  backdrop-filter: blur(8px);
  padding: 16px 18px;
  box-shadow: 0 0 0 1px rgba(0,0,0,.2), 0 8px 30px rgba(0, 0, 0, .35), inset 0 0 30px rgba(0, 229, 255, .03);
  position: relative;
  overflow: hidden;
}
.card::after {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: .6;
}
/* 服务器卡：整行英雄卡 */
.server-card { width: 100%; flex: 0 0 100%; }
/* Agent 卡：居中 flex 流式，限定最大宽度，避免宽屏孤卡 */
.agent-card { flex: 1 1 420px; max-width: 620px; min-width: 0; }
/* 失活 Agent 卡 */
.agent-card.stale { opacity: 0.55; filter: grayscale(0.55); border-color: rgba(255, 59, 92, 0.32); }
.agent-card.stale::after { background: linear-gradient(90deg, transparent, var(--red), transparent); opacity: .7; }
.offline-badge {
  font-size: 11px; color: var(--red); border: 1px solid rgba(255,59,92,.35);
  padding: 2px 8px; border-radius: 12px; margin-right: 8px; display: none;
}
.agent-card.stale .offline-badge { display: inline-block; }
.agent-card.stale .a-seen { color: var(--red); }
.card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.card-head h2 { margin: 0; font-size: 16px; letter-spacing: 1px; }
.last-run { font-size: 11px; color: var(--muted); }

/* 仪表盘 */
.gauges { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.gauge-box { height: 150px; }
.chart { width: 100%; height: 150px; }
.chart-box { height: 170px; margin-top: 6px; }
.chart-box.wide { height: 200px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 6px; }

/* 文本/芯片 */
.sub { margin: 12px 0 4px; font-size: 13px; color: var(--cyan); letter-spacing: 1px; font-weight: 600; }
.os-tag { font-size: 10px; color: var(--muted); font-weight: 400; letter-spacing: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.chip {
  font-size: 12px; padding: 4px 10px; border-radius: 20px;
  border: 1px solid rgba(255,255,255,.12); color: var(--muted);
  background: rgba(255,255,255,.03);
}
.chip.on { color: var(--green); border-color: rgba(0,255,157,.4); box-shadow: 0 0 10px rgba(0,255,157,.18); }
.chip.off { color: var(--red); border-color: rgba(255,59,92,.4); }
.chip.warn { color: var(--orange); border-color: rgba(255,179,0,.4); }
.chip.info { color: var(--cyan); border-color: rgba(0,229,255,.4); }
.kv { margin-top: 10px; font-size: 12px; color: var(--muted); display: grid; gap: 3px; }
.kv b { color: var(--text); font-weight: 600; }

details { margin-top: 10px; border-top: 1px dashed rgba(255,255,255,.08); padding-top: 8px; }
summary { cursor: pointer; color: var(--cyan); font-size: 12px; }
.mini-list { margin-top: 8px; display: grid; gap: 5px; font-size: 12px; }
.mini-row { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.mini-row .nm { color: var(--text); }
.mini-row .st { font-size: 11px; padding: 1px 8px; border-radius: 10px; }
.st.ok { color: var(--green); }
.st.bad { color: var(--red); }
.st.warn { color: var(--orange); }
.st.mut { color: var(--muted); }

/* 页脚告警流 */
.footer {
  position: relative; z-index: 1; margin: 8px 22px 24px;
  border: 1px solid var(--panel-line); border-radius: 14px;
  background: var(--panel); padding: 14px 18px; backdrop-filter: blur(8px);
}
.footer-head { color: var(--cyan); font-size: 13px; letter-spacing: 1px; margin-bottom: 8px; }
.alert-flow { display: grid; gap: 4px; max-height: 220px; overflow: auto; font-size: 12px; }
.alert-row { display: flex; gap: 10px; padding: 3px 0; border-bottom: 1px solid rgba(255,255,255,.04); }
.alert-row .lv { width: 56px; font-weight: 700; }
.alert-row .lv.critical { color: var(--red); }
.alert-row .lv.warn { color: var(--orange); }
.alert-row .lv.error { color: var(--red); }
.alert-row .lv.ok { color: var(--green); }
.alert-row .ts { color: var(--muted); width: 90px; }
.alert-row .msg { color: var(--text); flex: 1; }
.alert-empty { color: var(--muted); font-size: 12px; }