:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1e222b;
  --border: #2a2f3a;
  --text: #e6e9ef;
  --muted: #98a1b3;
  --accent: #4c8dff;
  --ok: #3ecf8e;
  --warn: #f2b544;
  --bad: #ff5f56;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f6f8;
    --panel: #ffffff;
    --panel-2: #f0f2f5;
    --border: #d8dce3;
    --text: #171a21;
    --muted: #5c6577;
    --accent: #1f6feb;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 var(--sans);
}

.loading { padding: 3rem; color: var(--muted); text-align: center; }

button {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
}
button:hover { border-color: var(--accent); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { color: var(--bad); }

input, select, textarea {
  font: inherit;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.45rem 0.6rem;
  width: 100%;
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

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

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
}
.login {
  width: min(380px, 100%);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
}
.login h1 { margin: 0 0 0.25rem; font-size: 1.25rem; }
.login p.sub { margin: 0 0 1.5rem; color: var(--muted); font-size: 0.85rem; }
.field { margin-bottom: 0.9rem; }
.field label { display: block; font-size: 0.8rem; color: var(--muted); margin-bottom: 0.3rem; }
.login button { width: 100%; margin-top: 0.5rem; }
.qr { background: #fff; padding: 12px; border-radius: 8px; display: grid; place-items: center; margin-bottom: 1rem; }
.qr svg { width: 200px; height: 200px; display: block; }
.secret { font: 12px var(--mono); word-break: break-all; color: var(--muted); text-align: center; margin-bottom: 1rem; }

.error {
  background: color-mix(in srgb, var(--bad) 15%, transparent);
  border: 1px solid var(--bad);
  color: var(--bad);
  padding: 0.5rem 0.7rem;
  border-radius: 6px;
  margin-bottom: 1rem;
  font-size: 0.85rem;
}
.notice {
  background: color-mix(in srgb, var(--warn) 15%, transparent);
  border: 1px solid var(--warn);
  padding: 0.5rem 0.7rem;
  border-radius: 6px;
  margin-bottom: 1rem;
  font-size: 0.85rem;
}

/* ---- shell ---- */

.app { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }

.side {
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 1rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.brand { font-weight: 600; padding: 0 0.5rem; }
.brand small { display: block; color: var(--muted); font-weight: 400; font-size: 0.75rem; }

.side h2 {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0 0 0.4rem 0.5rem;
}
.side nav { display: flex; flex-direction: column; gap: 2px; }
.side nav button {
  border: none;
  background: none;
  text-align: left;
  padding: 0.4rem 0.5rem;
  border-radius: 6px;
  color: var(--text);
}
.side nav button:hover { background: var(--panel-2); }
.side nav button.active { background: var(--accent); color: #fff; }
.side nav button .dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; margin-right: 7px; }
.dot.up { background: var(--ok); }
.dot.down { background: var(--bad); }
.dot.unknown { background: var(--muted); }

.side .foot { margin-top: auto; font-size: 0.75rem; color: var(--muted); padding: 0 0.5rem; }

.main { padding: 1.25rem 1.5rem; overflow: auto; min-width: 0; }
.main header { display: flex; align-items: baseline; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; }
.main header h1 { font-size: 1.1rem; margin: 0; }
.main header .host { color: var(--muted); font: 12px var(--mono); }

.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--border); margin-bottom: 1.25rem; flex-wrap: wrap; }
.tabs button { border: none; background: none; border-radius: 0; border-bottom: 2px solid transparent; padding: 0.5rem 0.85rem; color: var(--muted); }
.tabs button.active { color: var(--text); border-bottom-color: var(--accent); }

/* ---- cards ---- */

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 0.85rem; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 0.9rem 1rem; }
.card .label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
.card .value { font-size: 1.5rem; font-weight: 600; margin-top: 0.15rem; }
.card .sub { font-size: 0.78rem; color: var(--muted); margin-top: 0.2rem; }

.bar { height: 5px; background: var(--panel-2); border-radius: 3px; overflow: hidden; margin-top: 0.5rem; }
.bar > i { display: block; height: 100%; background: var(--accent); }
.bar > i.warn { background: var(--warn); }
.bar > i.bad { background: var(--bad); }

/* ---- tables ---- */

table { width: 100%; border-collapse: collapse; font-size: 0.87rem; }
th, td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 500; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04em; }
tbody tr:hover { background: var(--panel); }
td.right, th.right { text-align: right; }
td .mono, .mono { font-family: var(--mono); font-size: 0.85em; }

.pill { display: inline-block; padding: 1px 8px; border-radius: 20px; font-size: 0.75rem; border: 1px solid var(--border); }
.pill.ok { color: var(--ok); border-color: var(--ok); }
.pill.bad { color: var(--bad); border-color: var(--bad); }
.pill.idle { color: var(--muted); }

.actions { display: flex; gap: 0.35rem; justify-content: flex-end; }
.toolbar { display: flex; gap: 0.5rem; align-items: center; margin-bottom: 0.85rem; flex-wrap: wrap; }
.toolbar .spacer { flex: 1; }

/* ---- files ---- */

.crumbs { font: 12px var(--mono); color: var(--muted); margin-bottom: 0.6rem; word-break: break-all; }
.crumbs button { border: none; background: none; padding: 0 2px; color: var(--accent); font: inherit; }
.editor { width: 100%; min-height: 55vh; font: 13px/1.5 var(--mono); resize: vertical; white-space: pre; overflow-wrap: normal; overflow-x: auto; }
.name-cell { display: flex; align-items: center; gap: 0.45rem; }
.name-cell button { border: none; background: none; padding: 0; color: var(--text); text-align: left; }
.name-cell button:hover { color: var(--accent); }

/* ---- logs & terminal ---- */

.term-host { height: 70vh; background: #000; border: 1px solid var(--border); border-radius: 8px; padding: 6px; }
.logbox {
  height: 70vh;
  overflow: auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
  font: 12px/1.55 var(--mono);
  white-space: pre-wrap;
  word-break: break-word;
}

.empty { color: var(--muted); padding: 2rem 0; text-align: center; }

@media (max-width: 760px) {
  .app { grid-template-columns: 1fr; }
  .side { border-right: none; border-bottom: 1px solid var(--border); }
  .side .foot { margin-top: 1rem; }
}