/* Tema scuro unico. I colori delle serie sono quelli validati per superficie
   scura (blu/arancio/acqua): contrasto >= 3:1 e distinguibili con daltonismo. */
:root {
  --plane: #0d0d0d;
  --surface: #141413;
  --surface-2: #1d1d1b;
  --ink: #ffffff;
  --ink-2: #c3c2b7;
  --muted: #898781;
  --grid: #2c2c2a;
  --line: #383835;
  --border: rgba(255, 255, 255, 0.10);

  --s1: #3987e5;   /* CPU */
  --s2: #d95926;   /* RAM */
  --s3: #199e70;   /* Swap */

  --good: #0ca30c;
  --warn: #fab219;
  --serious: #ec835a;
  --critical: #d03b3b;

  --radius: 10px;
  --gap: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--plane);
  color: var(--ink);
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--s1); }

.wrap { max-width: 1400px; margin: 0 auto; padding: 0 20px 64px; }

/* ---- barra superiore ---------------------------------------------------- */

header.top {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--plane) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.top-inner {
  max-width: 1400px; margin: 0 auto; padding: 12px 20px;
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
}
.brand { font-weight: 650; letter-spacing: -0.01em; display: flex; align-items: center; gap: 9px; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--good); }
.dot.warn { background: var(--warn); }
.dot.critical { background: var(--critical); }
.top-meta { color: var(--muted); display: flex; gap: 16px; flex-wrap: wrap; font-size: 13px; }
.top-meta b { color: var(--ink-2); font-weight: 550; }
.spacer { flex: 1; }

button, .btn {
  font: inherit; color: var(--ink-2); background: var(--surface-2);
  border: 1px solid var(--border); border-radius: 8px;
  padding: 6px 12px; cursor: pointer;
}
button:hover { background: #262623; color: var(--ink); }
button:disabled { opacity: .45; cursor: default; }
button.danger { border-color: color-mix(in srgb, var(--critical) 45%, transparent); color: #f0a3a3; }
button.danger:hover { background: color-mix(in srgb, var(--critical) 18%, var(--surface-2)); }

/* ---- allarmi ------------------------------------------------------------ */

.alerts { display: flex; flex-direction: column; gap: 6px; margin: 18px 0 0; }
.alert {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 13px; border-radius: 8px; font-size: 13px;
  border: 1px solid var(--border); background: var(--surface);
}
.alert .icon { font-size: 13px; }
.alert.critical { border-color: color-mix(in srgb, var(--critical) 55%, transparent); color: #f5b4b4; }
.alert.warning { border-color: color-mix(in srgb, var(--warn) 45%, transparent); color: #f2d79a; }

/* ---- sezioni e schede --------------------------------------------------- */

section { margin-top: 34px; }
h2 {
  font-size: 12px; text-transform: uppercase; letter-spacing: .09em;
  color: var(--muted); font-weight: 600; margin: 0 0 12px;
  display: flex; align-items: center; gap: 12px;
}
h2 .tools { margin-left: auto; display: flex; gap: 8px; text-transform: none; letter-spacing: 0; }

.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px;
}

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(212px, 1fr)); gap: var(--gap); }

.tile .label { color: var(--muted); font-size: 12px; letter-spacing: .04em; text-transform: uppercase; }
.tile .value { font-size: 30px; font-weight: 600; letter-spacing: -0.02em; margin: 6px 0 2px; }
.tile .value small { font-size: 14px; font-weight: 450; color: var(--muted); letter-spacing: 0; }
.tile .sub { color: var(--ink-2); font-size: 12.5px; }
.tile svg.spark { display: block; width: 100%; height: 34px; margin-top: 10px; }

/* barra di riempimento: estremita' arrotondate, 2px di stacco dal fondo */
.meter { height: 7px; border-radius: 4px; background: var(--surface-2); overflow: hidden; margin-top: 10px; }
.meter > span { display: block; height: 100%; border-radius: 4px; background: var(--s1); }
.meter.good > span { background: var(--good); }
.meter.warn > span { background: var(--warn); }
.meter.critical > span { background: var(--critical); }

.cores { display: flex; gap: 3px; margin-top: 10px; align-items: flex-end; height: 26px; }
.cores i { flex: 1; background: var(--s1); border-radius: 2px; min-height: 2px; display: block; }

/* ---- grafico storico ---------------------------------------------------- */

.chart-head { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; flex-wrap: wrap; }
.legend { display: flex; gap: 14px; font-size: 12.5px; color: var(--ink-2); }
.legend span { display: flex; align-items: center; gap: 6px; }
.legend i { width: 10px; height: 2.5px; border-radius: 2px; display: inline-block; }
.ranges { margin-left: auto; display: flex; gap: 4px; }
.ranges button { padding: 4px 10px; font-size: 12.5px; }
.ranges button[aria-pressed="true"] { background: #2e2e2a; color: var(--ink); border-color: var(--line); }

#chart { position: relative; }
#chart svg { display: block; width: 100%; height: 260px; }
.tip {
  position: absolute; pointer-events: none; opacity: 0; transition: opacity .1s;
  background: var(--surface-2); border: 1px solid var(--line); border-radius: 8px;
  padding: 8px 10px; font-size: 12.5px; min-width: 150px;
  box-shadow: 0 8px 24px rgba(0,0,0,.5);
}
.tip .t { color: var(--muted); margin-bottom: 5px; }
.tip .r { display: flex; align-items: center; gap: 7px; justify-content: space-between; }
.tip .r b { font-weight: 550; font-variant-numeric: tabular-nums; }

/* ---- tabelle ------------------------------------------------------------ */

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th {
  text-align: left; color: var(--muted); font-weight: 550; font-size: 11.5px;
  text-transform: uppercase; letter-spacing: .05em;
  padding: 0 10px 8px; border-bottom: 1px solid var(--grid); white-space: nowrap;
}
th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--ink-2); }
th .arrow { opacity: .55; }
td { padding: 8px 10px; border-bottom: 1px solid var(--grid); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: var(--surface-2); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td.name { font-weight: 550; }
.sub2 { color: var(--muted); font-size: 11.5px; }
.clickable { cursor: pointer; }

.pill {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 2px 8px; border-radius: 999px; font-size: 11.5px;
  border: 1px solid var(--border); color: var(--ink-2); white-space: nowrap;
}
.pill.good { color: #7ede7e; border-color: color-mix(in srgb, var(--good) 45%, transparent); }
.pill.warn { color: #f2d79a; border-color: color-mix(in srgb, var(--warn) 45%, transparent); }
.pill.critical { color: #f5b4b4; border-color: color-mix(in srgb, var(--critical) 55%, transparent); }

.bar-cell { display: flex; align-items: center; gap: 8px; }
.bar-cell .track { flex: 1; min-width: 42px; height: 5px; border-radius: 3px; background: var(--surface-2); }
.bar-cell .track > i { display: block; height: 100%; border-radius: 3px; background: var(--s1); }

input[type="search"], input[type="text"], input[type="password"] {
  font: inherit; background: var(--surface-2); color: var(--ink);
  border: 1px solid var(--border); border-radius: 8px; padding: 7px 11px; width: 100%;
}
input:focus { outline: 2px solid color-mix(in srgb, var(--s1) 60%, transparent); outline-offset: 1px; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gap); }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }

/* ---- pannello dettaglio container --------------------------------------- */

.drawer-bg {
  position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 40;
  display: none;
}
.drawer-bg.open { display: block; }
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; width: min(760px, 100%);
  background: var(--surface); border-left: 1px solid var(--border);
  z-index: 41; overflow-y: auto; padding: 22px; display: none;
}
.drawer.open { display: block; }
.drawer h3 { margin: 0 0 4px; font-size: 19px; }
.kv { display: grid; grid-template-columns: 148px 1fr; gap: 6px 14px; font-size: 13px; margin: 16px 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-word; }
pre.logs {
  background: #0a0a09; border: 1px solid var(--border); border-radius: 8px;
  padding: 12px; font-size: 11.5px; line-height: 1.45; max-height: 380px;
  overflow: auto; white-space: pre-wrap; word-break: break-word; color: var(--ink-2);
}

/* ---- login -------------------------------------------------------------- */

.login-page { display: grid; place-items: center; min-height: 100vh; padding: 24px; }
.login-card { width: 100%; max-width: 360px; }
.login-card h1 { font-size: 20px; margin: 0 0 4px; letter-spacing: -0.01em; }
.login-card p.hint { color: var(--muted); font-size: 13px; margin: 0 0 22px; }
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 5px; }
.login-card button[type="submit"] { width: 100%; padding: 10px; background: var(--s1); color: #fff; border-color: transparent; font-weight: 550; }
.login-card button[type="submit"]:hover { background: #4e95e9; }
.error { color: #f5b4b4; font-size: 13px; margin-top: 12px; min-height: 18px; }

.empty { color: var(--muted); padding: 22px; text-align: center; font-size: 13px; }