:root {
  --bg: #0f1216;
  --panel: #171b21;
  --panel-2: #1d2229;
  --line: #2a3038;
  --text: #e6e9ee;
  --muted: #9aa4b2;
  --accent: #4c8dff;
  --ok: #35c46b;
  --warn: #f2b136;
  --crit: #f0553d;
  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f6f9;
    --panel: #ffffff;
    --panel-2: #f0f3f7;
    --line: #dfe4ea;
    --text: #1a1f26;
    --muted: #5f6b7a;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

header.top {
  display: flex; align-items: center; gap: 22px;
  padding: 12px 22px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 20;
  flex-wrap: wrap;
}
header.top .brand { font-weight: 650; font-size: 17px; letter-spacing: .2px; }
header.top .brand span { color: var(--accent); }
header.top nav { display: flex; gap: 18px; flex: 1; flex-wrap: wrap; }
header.top nav a { color: var(--muted); font-weight: 500; }
header.top nav a.active, header.top nav a:hover { color: var(--text); text-decoration: none; }

main { max-width: 1180px; margin: 0 auto; padding: 22px; }

h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 16px; margin: 26px 0 10px; color: var(--muted);
     text-transform: uppercase; letter-spacing: .07em; font-weight: 600; }
p.lead { color: var(--muted); margin: 0 0 20px; }

.panel {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px 18px; margin-bottom: 14px;
}

.flash { padding: 11px 15px; border-radius: var(--radius); margin-bottom: 12px;
         border: 1px solid var(--line); background: var(--panel-2); }
.flash.ok { border-color: rgba(53,196,107,.5); }
.flash.error { border-color: rgba(240,85,61,.6); }

/* --- Statuskacheln --- */
.cards { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); }

.card {
  background: var(--panel); border: 1px solid var(--line);
  border-left: 4px solid var(--muted);
  border-radius: var(--radius); padding: 14px 16px;
}
.card.up { border-left-color: var(--ok); }
.card.down { border-left-color: var(--crit); }
.card.pending { border-left-color: var(--muted); }
.card.paused { border-left-color: var(--warn); opacity: .7; }
.card .head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.card .name { font-weight: 600; }
.card .target { color: var(--muted); font-family: var(--mono); font-size: 12.5px;
                word-break: break-all; margin: 2px 0 8px; }
.card .msg { font-size: 13px; color: var(--muted); margin-top: 8px;
             overflow-wrap: anywhere; }

.badge { font-size: 11px; font-weight: 700; letter-spacing: .06em;
         padding: 3px 8px; border-radius: 20px; text-transform: uppercase; white-space: nowrap; }
.badge.up { background: rgba(53,196,107,.16); color: var(--ok); }
.badge.down { background: rgba(240,85,61,.16); color: var(--crit); }
.badge.pending { background: rgba(154,164,178,.16); color: var(--muted); }
.badge.paused { background: rgba(242,177,54,.16); color: var(--warn); }
.badge.warn { background: rgba(242,177,54,.16); color: var(--warn); }
.badge.crit { background: rgba(240,85,61,.16); color: var(--crit); }
.badge.info { background: rgba(76,141,255,.16); color: var(--accent); }
.badge.ghost { background: var(--panel-2); color: var(--muted); }

/* --- 24h-Balken --- */
.spark { display: flex; gap: 2px; height: 26px; align-items: stretch; margin: 6px 0 2px; }
.spark i { flex: 1; border-radius: 2px; background: var(--panel-2); }
.spark i.up { background: var(--ok); }
.spark i.down { background: var(--crit); }
.spark i.partial { background: var(--warn); }
.spark i.none { background: var(--panel-2); }
.spark-legend { display: flex; justify-content: space-between;
                font-size: 11px; color: var(--muted); }

/* --- Balken fuer Plattenbelegung --- */
.bar { height: 8px; border-radius: 4px; background: var(--panel-2); overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--ok); }
.bar.warn > span { background: var(--warn); }
.bar.crit > span { background: var(--crit); }

.diskrow { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px;
           align-items: center; margin: 10px 0; }
.diskrow .mount { font-family: var(--mono); font-size: 13px; }
.diskrow .figure { color: var(--muted); font-size: 12.5px; white-space: nowrap; }
.diskrow .bar { grid-column: 1 / -1; }

/* --- Tabellen --- */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; color: var(--muted); font-weight: 600; font-size: 12px;
     text-transform: uppercase; letter-spacing: .05em;
     padding: 8px 10px; border-bottom: 1px solid var(--line); }
td { padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
td.mono, .mono { font-family: var(--mono); font-size: 12.5px; }
td.num { text-align: right; font-variant-numeric: tabular-nums; }

/* --- Formulare --- */
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
label.field { display: block; margin-bottom: 14px; }
label.field > span { display: block; font-size: 12.5px; color: var(--muted);
                     margin-bottom: 5px; font-weight: 600; }
label.field small { display: block; font-weight: 400; color: var(--muted);
                    margin-top: 4px; font-size: 12px; }

input[type=text], input[type=password], input[type=number], input[type=url],
input[type=email], input[type=time], input[type=datetime-local], select, textarea {
  width: 100%; padding: 9px 11px; border-radius: 8px;
  border: 1px solid var(--line); background: var(--panel-2); color: var(--text);
  font: inherit;
}
textarea { font-family: var(--mono); font-size: 13px; min-height: 190px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.check { display: flex; align-items: flex-start; gap: 9px; margin-bottom: 10px; }
.check input { margin-top: 3px; }
.check span small { display: block; color: var(--muted); font-size: 12px; }

button, .btn {
  display: inline-block; padding: 9px 15px; border-radius: 8px; border: 1px solid var(--line);
  background: var(--panel-2); color: var(--text); font: inherit; font-weight: 550;
  cursor: pointer; text-decoration: none;
}
button:hover, .btn:hover { border-color: var(--accent); text-decoration: none; }
button.primary, .btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger, .btn.danger { color: var(--crit); }
button.small, .btn.small { padding: 5px 10px; font-size: 13px; }
.actions { display: flex; gap: 9px; flex-wrap: wrap; align-items: center; margin-top: 16px; }
.actions form { display: inline; }

.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 18px; font-size: 14px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }

.stat { display: flex; gap: 26px; flex-wrap: wrap; }
.stat > div > b { display: block; font-size: 21px; font-variant-numeric: tabular-nums; }
.stat > div > span { color: var(--muted); font-size: 12px;
                     text-transform: uppercase; letter-spacing: .05em; }

pre.code { background: var(--panel-2); border: 1px solid var(--line); border-radius: 8px;
           padding: 12px 14px; overflow-x: auto; font-family: var(--mono);
           font-size: 12.5px; line-height: 1.5; margin: 8px 0; }

.muted { color: var(--muted); }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.hidden { display: none; }

.banner { border-radius: var(--radius); padding: 12px 16px; margin-bottom: 14px;
          border: 1px solid var(--line); background: var(--panel); }
.banner.crit { border-color: rgba(240,85,61,.6); }
.banner.warn { border-color: rgba(242,177,54,.6); }

svg.chart { width: 100%; height: 90px; display: block; }
svg.chart path { fill: none; stroke: var(--accent); stroke-width: 2;
                 stroke-linejoin: round; stroke-linecap: round; }

@media (max-width: 640px) {
  main { padding: 14px; }
  header.top { padding: 10px 14px; gap: 12px; }
  .cards { grid-template-columns: 1fr; }
  table { font-size: 13px; }
}