:root{
  --bg:#0B1220;
  --grid-line: rgba(94,234,212,0.06);
  --grid-line-strong: rgba(94,234,212,0.11);
  --panel:#101A2E;
  --panel-border: rgba(94,234,212,0.16);
  --panel-border-hover: rgba(94,234,212,0.4);
  --text:#E7ECF5;
  --muted:#7C8AA5;
  --cyan:#5EEAD4;
  --cyan-dim: rgba(94,234,212,0.5);
  --up:#34D399;
  --down:#EF4444;
  --amber:#FBBF24;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
  --sans: 'Inter', system-ui, sans-serif;
}
*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
body{
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    linear-gradient(var(--grid-line-strong) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line-strong) 1px, transparent 1px);
  background-size: 24px 24px, 24px 24px, 120px 120px, 120px 120px;
  background-position: -1px -1px;
  color: var(--text);
  font-family: var(--sans);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a{ color: inherit; }

/* ---------- shared layout ---------- */
.wrap{
  max-width: 1180px;
  margin: 0 auto;
  padding: 48px 24px 40px;
}
.eyebrow{
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 10px;
  opacity: 0.85;
}
h1{
  font-family: var(--mono);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
}
h1 span{ color: var(--muted); font-weight: 400; }

/* ---------- header ---------- */
header{
  display:flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 20px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--panel-border);
  margin-bottom: 36px;
}
.header-right{
  display:flex;
  align-items:flex-start;
  gap: 22px;
}
.clockbox{
  text-align: right;
  font-family: var(--mono);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}
.clockbox .time{
  color: var(--text);
  font-size: 22px;
  font-weight: 500;
}
.logout-btn{
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--panel-border);
  border-radius: 3px;
  padding: 7px 12px;
  cursor: pointer;
  height: fit-content;
  transition: border-color 0.15s, color 0.15s;
}
.logout-btn:hover{
  border-color: var(--panel-border-hover);
  color: var(--text);
}

/* ---------- glances stat bar ---------- */
.statbar{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--panel-border);
  border: 1px solid var(--panel-border);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 40px;
}
.stat{
  background: var(--panel);
  padding: 14px 18px;
}
.stat .stat-label{
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  display:block;
  margin-bottom: 6px;
}
.stat .stat-value{
  font-family: var(--mono);
  font-size: 19px;
  color: var(--text);
}
.stat .stat-value.warn{ color: var(--amber); }
.stat .stat-value.crit{ color: var(--down); }
.stat .stat-bar{
  margin-top: 8px;
  height: 3px;
  background: rgba(255,255,255,0.06);
  border-radius: 2px;
  overflow: hidden;
}
.stat .stat-bar-fill{
  height: 100%;
  background: var(--cyan);
  width: 0%;
  transition: width 0.4s ease;
}

/* ---------- section ---------- */
.section{ margin-bottom: 34px; }
.section-label{
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 14px;
  display:flex;
  align-items:center;
  gap: 10px;
}
.section-label::after{
  content:'';
  flex:1;
  height:1px;
  background: var(--panel-border);
}

/* ---------- service grid ---------- */
.grid{
  display:grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 14px;
}
.card{
  position:relative;
  background: linear-gradient(180deg, rgba(94,234,212,0.03), transparent 40%), var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 3px;
  padding: 18px 18px 16px;
  text-decoration:none;
  color: inherit;
  display:flex;
  flex-direction:column;
  gap: 10px;
  transition: border-color 0.15s ease, transform 0.15s ease;
  cursor: pointer;
}
.card:hover{
  border-color: var(--panel-border-hover);
  transform: translateY(-2px);
}
.card:focus-visible{
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.card.internal{
  cursor: default;
  opacity: 0.72;
}
.card.internal:hover{
  transform:none;
  border-color: var(--panel-border);
}
.card-top{
  display:flex;
  justify-content: space-between;
  align-items: flex-start;
}
.card-icon{
  width: 26px;
  height: 26px;
  color: var(--cyan);
  flex-shrink: 0;
}
.status{
  display:flex;
  align-items:center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.dot{
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted);
  transition: background 0.2s, box-shadow 0.2s;
}
.dot.up{ background: var(--up); box-shadow: 0 0 8px 1px rgba(52,211,153,0.6); }
.dot.down{ background: var(--down); box-shadow: 0 0 8px 1px rgba(239,68,68,0.45); }
.card h2{
  font-family: var(--sans);
  font-size: 15.5px;
  font-weight: 600;
  margin: 0;
}
.card .tagline{
  font-size: 12px;
  color: var(--muted);
  margin: -4px 0 0;
  line-height: 1.4;
}
.card-foot{
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px dashed var(--panel-border);
  font-family: var(--mono);
  font-size: 11px;
}
.card-foot .host{ color: var(--cyan); display:block; }
.card-foot .lan{ color: var(--muted); display:block; margin-top: 2px; }

footer{
  margin-top: 48px;
  padding-top: 18px;
  border-top: 1px solid var(--panel-border);
  display:flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
  letter-spacing: 0.03em;
}

/* ---------- login page ---------- */
.login-wrap{
  min-height: 100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding: 24px;
}
.login-card{
  width: 100%;
  max-width: 360px;
  background: linear-gradient(180deg, rgba(94,234,212,0.04), transparent 50%), var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 4px;
  padding: 34px 30px;
}
.login-card .eyebrow{ margin-bottom: 6px; }
.login-card h1{ font-size: 24px; margin-bottom: 26px; }
.field{ margin-bottom: 18px; }
.field label{
  display:block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}
.field input{
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--panel-border);
  border-radius: 3px;
  padding: 11px 12px;
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
}
.field input:focus{
  outline: none;
  border-color: var(--cyan);
}
.login-submit{
  width: 100%;
  background: var(--cyan);
  color: #06251F;
  border: none;
  border-radius: 3px;
  padding: 12px;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: opacity 0.15s;
}
.login-submit:hover{ opacity: 0.88; }
.login-error{
  font-family: var(--mono);
  font-size: 12px;
  color: var(--down);
  margin: -8px 0 16px;
  min-height: 16px;
}
.login-note{
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--muted);
  margin-top: 20px;
  line-height: 1.6;
}

@media (prefers-reduced-motion: reduce){
  .stat-bar-fill{ transition:none; }
}