:root {
  --bg: #0e1419;
  --bg-2: #152028;
  --bg-3: #1c2a35;
  --line: #2a3c4a;
  --text: #e7eef4;
  --muted: #8aa0b2;
  --accent: #2bb7a9;
  --accent-dim: #1a6f68;
  --ok: #3dba74;
  --warn: #d4a017;
  --degraded: #e07a2f;
  --crit: #e05252;
  --offline: #6b7c8c;
  --font: "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: var(--font);
  background:
    radial-gradient(1200px 600px at 10% -10%, #1a3a40 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #1c2838 0%, transparent 50%),
    var(--bg);
  color: var(--text);
}

.app { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }

.sidebar {
  border-right: 1px solid var(--line);
  background: rgba(14, 20, 25, 0.85);
  backdrop-filter: blur(8px);
  padding: 1.25rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.brand { display: flex; gap: 0.75rem; align-items: center; padding: 0.25rem 0.5rem; }
.brand-mark {
  width: 36px; height: 36px; border-radius: 8px;
  background:
    linear-gradient(135deg, var(--accent), #1e6b90);
  box-shadow: 0 0 0 1px rgba(43,183,169,0.35);
  position: relative;
}
.brand-mark::after {
  content: "";
  position: absolute; inset: 9px;
  border: 2px solid rgba(255,255,255,0.9);
  border-radius: 3px;
  border-top-color: transparent;
  transform: rotate(45deg);
}
.brand-name { font-weight: 700; letter-spacing: 0.02em; }
.brand-sub { font-size: 0.75rem; color: var(--muted); }

.nav { display: flex; flex-direction: column; gap: 0.25rem; }
.nav button {
  appearance: none; border: 0; background: transparent; color: var(--muted);
  text-align: left; padding: 0.65rem 0.85rem; border-radius: 8px;
  font: inherit; cursor: pointer;
}
.nav button:hover { background: var(--bg-3); color: var(--text); }
.nav button.active { background: var(--bg-3); color: var(--accent); font-weight: 600; }
.nav-badge {
  display: inline-block; margin-left: 0.35rem; min-width: 1.2rem; padding: 0.05rem 0.35rem;
  border-radius: 999px; background: rgba(224,82,82,0.25); color: #ffb4b4;
  font-size: 0.68rem; font-weight: 700; text-align: center; vertical-align: middle;
}

.chart-wrap {
  position: relative; height: 340px; width: 100%;
  background: rgba(0,0,0,0.15); border-radius: 10px; padding: 0.5rem;
}
.notify-form {
  display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center;
}
.notify-form label {
  display: inline-flex; gap: 0.35rem; align-items: center;
  color: var(--muted); font-size: 0.85rem;
}
.notify-form input[type="text"],
.notify-form input:not([type="checkbox"]):not([type="submit"]) {
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  color: var(--text); padding: 0.4rem 0.6rem; font: inherit; font-size: 0.85rem;
}
.license-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 0.6rem;
}
.license-kv {
  background: rgba(0,0,0,0.18); border-radius: 8px; padding: 0.55rem 0.7rem;
}
.license-kv .k { color: var(--muted); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.04em; }
.license-kv .v { font-family: var(--mono); font-size: 0.9rem; margin-top: 0.2rem; word-break: break-all; }
.feat-list { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.5rem; }
.feat-pill {
  font-size: 0.72rem; font-family: var(--mono); padding: 0.2rem 0.45rem; border-radius: 6px;
  background: rgba(43,183,169,0.12); color: var(--accent); border: 1px solid rgba(43,183,169,0.25);
}
.tier-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 0.75rem;
}
.tier-card {
  background: rgba(0,0,0,0.18); border: 1px solid var(--line); border-radius: 10px;
  padding: 0.85rem; display: flex; flex-direction: column; gap: 0.35rem;
}
.tier-card.active { border-color: rgba(43,183,169,0.55); box-shadow: inset 0 0 0 1px rgba(43,183,169,0.2); }
.tier-card-head { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; }
.tier-card h3 { margin: 0; font-size: 1rem; color: var(--accent); }
.tier-code { margin: 0; font-family: var(--mono); font-size: 0.72rem; color: var(--muted); }
.tier-desc { margin: 0; font-size: 0.84rem; color: var(--text); line-height: 1.35; }
.tier-limits { margin: 0; font-size: 0.78rem; color: var(--muted); font-family: var(--mono); }
.tier-feats {
  margin: 0.25rem 0 0; padding-left: 1.1rem; font-size: 0.78rem; color: var(--muted);
  display: flex; flex-direction: column; gap: 0.15rem;
}
.tier-feats li { line-height: 1.3; }

.channel-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 0.75rem;
}
.channel-card {
  background: rgba(0,0,0,0.18); border: 1px solid var(--line); border-radius: 10px; padding: 0.85rem;
  display: flex; flex-direction: column; gap: 0.45rem;
}
.channel-head { display: flex; justify-content: space-between; align-items: center; }
.channel-card .fld { display: flex; flex-direction: column; gap: 0.2rem; font-size: 0.75rem; color: var(--muted); }
.channel-card .fld input {
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  color: var(--text); padding: 0.4rem 0.55rem; font: inherit; font-size: 0.85rem;
}
.channel-card .chk { display: flex; gap: 0.4rem; align-items: center; font-size: 0.85rem; color: var(--muted); }
.form-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0.65rem; margin-bottom: 1rem; align-items: end;
}
.form-grid label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.8rem; color: var(--muted); }
.form-grid .span2 { grid-column: span 2; }
.form-grid input, .form-grid textarea {
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  color: var(--text); padding: 0.4rem 0.6rem; font: inherit;
}
.chan-pill {
  display: inline-block; font-size: 0.68rem; font-family: var(--mono);
  padding: 0.1rem 0.35rem; border-radius: 4px; margin-right: 0.2rem;
  background: rgba(43,183,169,0.12); color: var(--accent);
}
@media (max-width: 800px) {
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .span2 { grid-column: span 1; }
}

.sidebar-foot { margin-top: auto; display: flex; flex-direction: column; gap: 0.5rem; padding: 0.5rem; }
.pill {
  display: inline-flex; width: fit-content;
  padding: 0.2rem 0.55rem; border-radius: 999px;
  background: rgba(43,183,169,0.15); color: var(--accent);
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.06em;
}
.muted { color: var(--muted); font-size: 0.8rem; }

.main { padding: 1.25rem 1.5rem 2rem; overflow: auto; }
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 1.25rem;
}
.topbar h1 { margin: 0; font-size: 1.35rem; font-weight: 600; }

.btn {
  appearance: none; border: 1px solid var(--line); background: var(--bg-3);
  color: var(--text); border-radius: 8px; padding: 0.45rem 0.85rem;
  font: inherit; cursor: pointer;
}
.btn:hover { border-color: var(--accent-dim); }
.btn-danger { background: rgba(224,82,82,0.15); border-color: rgba(224,82,82,0.45); color: #ffb4b4; }
.btn-accent { background: rgba(43,183,169,0.15); border-color: rgba(43,183,169,0.4); color: var(--accent); }
.btn-sm { padding: 0.3rem 0.55rem; font-size: 0.8rem; }

.view { display: none; }
.view.active { display: block; }

.stat-row {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.75rem;
  margin-bottom: 1rem;
}
.stat {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px;
  padding: 0.9rem 1rem;
}
.stat .label { color: var(--muted); font-size: 0.8rem; }
.stat .value { font-size: 1.5rem; font-weight: 700; margin-top: 0.2rem; font-family: var(--mono); }

.server-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); gap: 1rem;
}

.card {
  background: linear-gradient(180deg, rgba(28,42,53,0.95), rgba(21,32,40,0.95));
  border: 1px solid var(--line); border-radius: 14px; padding: 1rem 1.1rem;
}
.card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 0.75rem; }
.card-title { font-weight: 700; font-size: 1.05rem; }
.card-host { color: var(--muted); font-family: var(--mono); font-size: 0.8rem; margin-top: 0.15rem; }

.badge {
  font-family: var(--mono); font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.04em; padding: 0.25rem 0.5rem; border-radius: 6px;
}
.badge.HEALTHY { background: rgba(61,186,116,0.15); color: var(--ok); }
.badge.WARNING { background: rgba(212,160,23,0.15); color: var(--warn); }
.badge.DEGRADED { background: rgba(224,122,47,0.18); color: var(--degraded); }
.badge.CRITICAL { background: rgba(224,82,82,0.18); color: var(--crit); }
.badge.OFFLINE { background: rgba(107,124,140,0.25); color: #c5d0da; }
.badge.UNKNOWN { background: rgba(107,124,140,0.2); color: var(--muted); }
.badge.OPEN, .badge.RECOVERING, .badge.LOCKED { background: rgba(224,82,82,0.15); color: var(--crit); }
.badge.CLOSED { background: rgba(61,186,116,0.12); color: var(--ok); }

.layer-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.45rem;
  margin: 0.9rem 0;
}
.layer {
  background: rgba(0,0,0,0.2); border-radius: 8px; padding: 0.45rem 0.55rem;
  border: 1px solid transparent;
}
.layer .k { color: var(--muted); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; }
.layer .v { font-family: var(--mono); font-size: 0.78rem; margin-top: 0.15rem; font-weight: 500; }
.layer.OK .v, .layer.ONLINE .v, .layer.ACTIVE .v { color: var(--ok); }
.layer.WARNING .v { color: var(--warn); }
.layer.DEGRADED .v { color: var(--degraded); }
.layer.CRITICAL .v, .layer.FAILED .v { color: var(--crit); }
.layer.UNKNOWN .v { color: var(--muted); }

.metrics {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.4rem;
  margin-bottom: 0.85rem;
}
.metric {
  text-align: center; padding: 0.4rem; border-radius: 8px; background: rgba(0,0,0,0.18);
}
.metric .n { font-family: var(--mono); font-weight: 600; }
.metric .l { color: var(--muted); font-size: 0.68rem; }

.card-actions { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.select {
  background: var(--bg); color: var(--text); border: 1px solid var(--line);
  border-radius: 8px; padding: 0.3rem 0.45rem; font: inherit; font-size: 0.8rem;
}

.panel {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px;
  padding: 1rem; margin-bottom: 1rem;
}
.panel h2 { margin: 0 0 0.75rem; font-size: 1rem; }
.stack { display: flex; flex-direction: column; gap: 1rem; }

.table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.table th, .table td {
  text-align: left; padding: 0.55rem 0.45rem; border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.table th { color: var(--muted); font-weight: 500; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04em; }
.table td { font-family: var(--mono); font-size: 0.78rem; }

dialog {
  border: 1px solid var(--line); border-radius: 12px; background: var(--bg-2); color: var(--text);
  padding: 0; max-width: 420px; width: calc(100% - 2rem);
}
dialog::backdrop { background: rgba(0,0,0,0.55); }
.dialog-body { padding: 1.1rem 1.2rem; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 0.5rem; margin-top: 1rem; }

.hidden { display: none !important; }

.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background:
    radial-gradient(900px 500px at 20% 0%, #1a3a40 0%, transparent 55%),
    radial-gradient(700px 400px at 90% 20%, #1c2838 0%, transparent 50%),
    var(--bg);
}
.login-card {
  width: min(380px, 100%);
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.4rem 1.35rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.login-brand { margin-bottom: 0.4rem; }
.login-card label {
  display: flex; flex-direction: column; gap: 0.3rem;
  font-size: 0.8rem; color: var(--muted);
}
.login-card input {
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  color: var(--text); padding: 0.55rem 0.7rem; font: inherit;
}
.login-card input:focus { outline: 1px solid var(--accent-dim); }
.login-error { color: var(--crit); font-size: 0.85rem; margin: 0; }
.login-hint { margin: 0.2rem 0 0; font-size: 0.72rem; text-align: center; }

.user-form {
  display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem; align-items: center;
}
.user-form input {
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  color: var(--text); padding: 0.4rem 0.6rem; font: inherit; font-size: 0.85rem;
}

@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { flex-direction: row; flex-wrap: wrap; align-items: center; border-right: 0; border-bottom: 1px solid var(--line); }
  .nav { flex-direction: row; flex-wrap: wrap; }
  .sidebar-foot { margin-top: 0; flex-direction: row; align-items: center; }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  .metrics { grid-template-columns: repeat(2, 1fr); }
}

.channel-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 0.75rem;
}
.channel-card {
  background: rgba(0,0,0,0.18); border: 1px solid var(--line); border-radius: 10px; padding: 0.85rem;
  display: flex; flex-direction: column; gap: 0.45rem;
}
.channel-head { display: flex; justify-content: space-between; align-items: center; }
.channel-card .fld { display: flex; flex-direction: column; gap: 0.2rem; font-size: 0.75rem; color: var(--muted); }
.channel-card .fld input {
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  color: var(--text); padding: 0.4rem 0.55rem; font: inherit; font-size: 0.85rem;
}
.channel-card .chk { display: flex; gap: 0.4rem; align-items: center; font-size: 0.85rem; color: var(--muted); }
.form-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0.65rem; margin-bottom: 1rem; align-items: end;
}
.form-grid label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.8rem; color: var(--muted); }
.form-grid .span2 { grid-column: span 2; }
.form-grid input, .form-grid textarea {
  background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  color: var(--text); padding: 0.4rem 0.6rem; font: inherit;
}
.chan-pill {
  display: inline-block; font-size: 0.68rem; font-family: var(--mono);
  padding: 0.1rem 0.35rem; border-radius: 4px; margin-right: 0.2rem;
  background: rgba(43,183,169,0.12); color: var(--accent);
}
.key-box {
  margin-top: 0.75rem; padding: 0.75rem; background: rgba(0,0,0,0.25);
  border-radius: 8px; font-family: var(--mono); font-size: 0.78rem; word-break: break-all;
}
@media (max-width: 800px) {
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .span2 { grid-column: span 1; }
}

.channel-card.dimmed .channel-fields { opacity: 0.45; pointer-events: none; }
.channel-card .cfg-status {
  margin: 0; font-size: 0.72rem; font-family: var(--mono);
  color: var(--muted);
}
.channel-card .cfg-status.ready { color: var(--ok); }
.channel-card .cfg-status.missing { color: var(--warn); }
.channel-card .channel-fields { display: flex; flex-direction: column; gap: 0.4rem; }
.channel-card .btn { margin-top: 0.25rem; align-self: flex-start; }
.channel-card .test-ok { outline: 1px solid rgba(61,186,116,0.55); }
.channel-card .test-fail { outline: 1px solid rgba(224,82,82,0.55); }