:root {
  --bg: #07080f;
  --bg-glow-1: #1a1b4b;
  --bg-glow-2: #0d2a3f;
  --surface: rgba(22, 25, 43, 0.72);
  --surface-solid: #161a2b;
  --surface-hover: rgba(30, 34, 58, 0.85);
  --line: rgba(255, 255, 255, 0.07);
  --line-strong: rgba(255, 255, 255, 0.14);
  --text: #eef1ff;
  --muted: #8b93b8;
  --faint: #5d6488;
  --accent: #7b6cf6;
  --accent-2: #a48bff;
  --green: #2fd99a;
  --red: #ff5566;
  --amber: #ffb84d;
  --cyan: #35c9f0;
  --radius: 16px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(900px 500px at 8% -8%, var(--bg-glow-1) 0%, transparent 60%),
    radial-gradient(800px 500px at 95% 0%, var(--bg-glow-2) 0%, transparent 55%),
    var(--bg);
  background-attachment: fixed;
  font: 15px/1.5 "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body.centered { display: grid; place-items: center; padding: 20px; }

.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #22273f; border-radius: 8px; border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: #2e3556; background-clip: content-box; }

/* ---------------------------------------------------------------- top bar */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  padding: 14px 22px;
  background: rgba(7, 8, 15, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.2px;
}
.brand .accent {
  background: linear-gradient(120deg, var(--accent-2), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand.big { font-size: 25px; }
.brand .moon { font-size: 20px; filter: drop-shadow(0 0 10px rgba(164, 139, 255, 0.6)); }

.summary { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 32px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}
.chip b { color: var(--text); font-weight: 600; }
.chip.clickable { cursor: pointer; transition: border-color 0.15s, color 0.15s; }
.chip.clickable:hover { border-color: var(--accent); color: var(--text); }
.chip.off b { color: var(--faint); }
.chip.good b { color: var(--green); }
.chip.bad b { color: var(--red); }

.actions { margin-left: auto; display: flex; gap: 10px; align-items: center; }

.search {
  height: 34px;
  width: 190px;
  padding: 0 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  font-size: 13.5px;
  outline: none;
  transition: border-color 0.15s, width 0.2s;
}
.search:focus { border-color: var(--accent); width: 240px; }
.search::placeholder { color: var(--faint); }

/* ---------------------------------------------------------------- status dots */

.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--faint); flex: none; }
.dot.online { background: var(--green); box-shadow: 0 0 0 3px rgba(47, 217, 154, 0.16); }
.dot.offline { background: var(--red); box-shadow: 0 0 0 3px rgba(255, 85, 102, 0.16); }
.dot.pending { background: var(--amber); box-shadow: 0 0 0 3px rgba(255, 184, 77, 0.16); }
.dot.online { animation: breathe 2.4s ease-in-out infinite; }

@keyframes breathe {
  0%, 100% { box-shadow: 0 0 0 3px rgba(47, 217, 154, 0.16); }
  50% { box-shadow: 0 0 0 6px rgba(47, 217, 154, 0.04); }
}

.pulse { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-2); animation: blink 2s infinite; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }

/* ---------------------------------------------------------------- buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 34px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font-size: 13.5px;
  font-family: inherit;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.06s, box-shadow 0.15s;
}
.btn:hover { background: var(--surface-hover); border-color: var(--line-strong); }
.btn:active { transform: translateY(1px); }
.btn.primary {
  background: linear-gradient(135deg, var(--accent), #5b52d8);
  border-color: transparent;
  color: #fff;
  font-weight: 600;
  box-shadow: 0 6px 18px rgba(123, 108, 246, 0.35);
}
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; }
.btn.danger { background: transparent; border-color: rgba(255, 85, 102, 0.35); color: var(--red); }
.btn.danger:hover { background: rgba(255, 85, 102, 0.12); border-color: var(--red); }
.btn.block { width: 100%; }
.btn.icon { width: 34px; padding: 0; font-size: 15px; }

/* ---------------------------------------------------------------- node grid */

main { padding: 22px; max-width: 1800px; margin: 0 auto; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 16px;
}

.card {
  position: relative;
  padding: 16px 17px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  backdrop-filter: blur(8px);
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.18s, transform 0.18s, box-shadow 0.18s;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--green), transparent 70%);
  opacity: 0.55;
}
.card:hover { transform: translateY(-3px); border-color: var(--line-strong); box-shadow: var(--shadow); }
.card.offline::before { background: linear-gradient(90deg, var(--red), transparent 70%); opacity: 0.8; }
.card.pending::before { background: linear-gradient(90deg, var(--amber), transparent 70%); }

.card-head { display: flex; align-items: center; gap: 9px; }
.card-head h3 { margin: 0; font-size: 16.5px; font-weight: 650; letter-spacing: 0.2px; }
.card-head .age { margin-left: auto; font-size: 12px; color: var(--faint); white-space: nowrap; }
.card-sub {
  margin: 3px 0 12px;
  color: var(--muted);
  font-size: 12.5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.addr {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 5px 0 0;
  padding: 2px 8px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(0, 0, 0, 0.28);
  color: #b9c2ee;
  font: 12px/1.5 var(--mono);
  cursor: copy;
  transition: border-color 0.15s, color 0.15s;
}
.addr:hover { border-color: var(--line-strong); color: #fff; }

.down-note {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0 0 12px;
  padding: 9px 11px;
  border: 1px solid rgba(255, 85, 102, 0.25);
  border-radius: 10px;
  background: rgba(255, 85, 102, 0.08);
  font-size: 12.5px;
  color: #ffbcc3;
}
.down-note b { color: #fff; font-family: var(--mono); }

/* heartbeat strip, Uptime Kuma style */

.beats-row { display: flex; align-items: center; gap: 10px; margin-bottom: 13px; }
.beats { display: flex; gap: 2px; flex: 1; height: 26px; align-items: flex-end; }
.beat {
  flex: 1;
  min-width: 2px;
  height: 100%;
  border-radius: 2px;
  background: var(--green);
  opacity: 0.85;
  transition: opacity 0.15s, transform 0.15s;
}
.beat.down { background: var(--red); opacity: 1; }
.beat.unknown { background: #2b3050; height: 45%; }
.beat:hover { opacity: 1; transform: scaleY(1.12); }

.sla { font-family: var(--mono); font-size: 12.5px; color: var(--green); white-space: nowrap; }
.sla.warn { color: var(--amber); }
.sla.bad { color: var(--red); }
.sla small { color: var(--faint); font-family: "Inter", sans-serif; margin-right: 3px; }

/* metric rows */

.metric { margin-bottom: 10px; }
.metric-top { display: flex; justify-content: space-between; align-items: baseline; font-size: 12.5px; margin-bottom: 5px; gap: 10px; }
.metric-top .label { color: var(--muted); }
.metric-top .value { font-family: var(--mono); font-size: 12px; color: var(--text); }

.bar { height: 5px; border-radius: 4px; background: rgba(255, 255, 255, 0.06); overflow: hidden; }
.bar > span {
  display: block;
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.bar > span.warn { background: linear-gradient(90deg, #e59a2b, var(--amber)); }
.bar > span.crit { background: linear-gradient(90deg, #e03b4c, var(--red)); }

.net-row { display: flex; align-items: baseline; gap: 14px; margin: 12px 0 4px; font-family: var(--mono); font-size: 12.5px; }
.net-row .rx { color: var(--cyan); }
.net-row .tx { color: var(--accent-2); }
.net-row .total { margin-left: auto; color: var(--faint); font-size: 11.5px; }

canvas.spark { width: 100%; height: 40px; display: block; }

/* ---------------------------------------------------------------- overlays */

.overlay {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(4, 5, 12, 0.7);
  backdrop-filter: blur(6px);
  overflow: auto;
  animation: fade 0.15s ease-out;
}
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }

.panel {
  width: min(460px, 100%);
  padding: 22px;
  border: 1px solid var(--line-strong);
  border-radius: 20px;
  background: linear-gradient(180deg, #171b2e, #12142280);
  box-shadow: var(--shadow);
  animation: rise 0.18s ease-out;
}
@keyframes rise { from { transform: translateY(10px) scale(0.99); } to { transform: none; } }

.panel.wide { width: min(1100px, 100%); }
.panel.login { width: min(360px, 100%); }

.panel-head { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 16px; }
.panel-head h2 { margin: 0; font-size: 21px; letter-spacing: 0.2px; }
.panel-head-actions { margin-left: auto; display: flex; gap: 10px; align-items: center; }
.panel-foot { display: flex; gap: 10px; justify-content: flex-end; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }

.segmented { display: flex; padding: 3px; border: 1px solid var(--line); border-radius: 11px; background: rgba(0, 0, 0, 0.25); }
.segmented button {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 6px 11px;
  border-radius: 8px;
  font-size: 12.5px;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.segmented button:hover { color: var(--text); }
.segmented button.active { background: var(--accent); color: #fff; }

.sla-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.sla-card {
  flex: 1 1 120px;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
}
.sla-card .k { font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--faint); }
.sla-card .v { margin-top: 3px; font-family: var(--mono); font-size: 19px; }
.sla-card .v.good { color: var(--green); }
.sla-card .v.warn { color: var(--amber); }
.sla-card .v.bad { color: var(--red); }

.detail-beats { margin-bottom: 16px; }
.detail-beats .beats { height: 34px; }
.detail-beats .legend { display: flex; justify-content: space-between; margin-top: 6px; font-size: 11.5px; color: var(--faint); }

.info-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(155px, 1fr)); gap: 10px; margin-bottom: 18px; }
.info-grid div {
  align-content: start;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.02);
}
.info-grid .k { font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--faint); }
.info-grid .v { margin-top: 2px; font-size: 13.5px; word-break: break-word; }

.charts { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.charts figure {
  margin: 0;
  padding: 12px 12px 8px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.02);
}
.charts figcaption { margin-bottom: 8px; font-size: 12.5px; color: var(--muted); }
.charts canvas { width: 100%; display: block; cursor: crosshair; }

.chart-tip {
  position: fixed;
  z-index: 200;
  min-width: 130px;
  padding: 8px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: rgba(10, 12, 22, 0.95);
  box-shadow: var(--shadow);
  font-size: 12px;
  pointer-events: none;
  transition: opacity 0.1s;
}
.chart-tip .when { color: var(--faint); margin-bottom: 5px; font-family: var(--mono); }
.chart-tip .line { display: flex; align-items: center; gap: 7px; }
.chart-tip .line .swatch { width: 8px; height: 8px; border-radius: 2px; }
.chart-tip .line .name { color: var(--muted); }
.chart-tip .line .val { margin-left: auto; font-family: var(--mono); }

.incidents { margin-top: 18px; }
.incidents h3 { margin: 0 0 10px; font-size: 14px; color: var(--muted); font-weight: 600; }
.incidents table { width: 100%; border-collapse: collapse; font-size: 13px; }
.incidents th { text-align: left; padding: 6px 8px; color: var(--faint); font-weight: 500; font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.4px; }
.incidents td { padding: 7px 8px; border-top: 1px solid var(--line); font-family: var(--mono); font-size: 12.5px; }
.incidents .ongoing { color: var(--red); }

/* ---------------------------------------------------------------- forms */

label { display: block; margin: 12px 0 6px; font-size: 12.5px; color: var(--muted); }

input[type="text"], input[type="password"] {
  width: 100%;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: rgba(0, 0, 0, 0.25);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(123, 108, 246, 0.16); }

.code {
  margin: 10px 0 0;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: rgba(0, 0, 0, 0.35);
  color: #cfd6ff;
  font: 12px/1.65 var(--mono);
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 220px;
  overflow: auto;
}

.error { margin: 10px 0 0; color: var(--red); font-size: 13px; }
.hint { margin: 6px 0 0; color: var(--faint); font-size: 12px; }

.empty { padding: 90px 20px; text-align: center; color: var(--muted); }
.empty h2 { margin: 0 0 6px; color: var(--text); }

.toast {
  position: fixed;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  z-index: 300;
  padding: 10px 18px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(18, 21, 36, 0.96);
  box-shadow: var(--shadow);
  font-size: 13.5px;
  animation: rise 0.18s ease-out;
}

@media (max-width: 820px) {
  .charts { grid-template-columns: 1fr; }
  .search { width: 130px; }
  main { padding: 14px; }
}