:root {
  --bg: #0f1419;
  --panel: #1a2332;
  --text: #e7ecf3;
  --muted: #8b9bb4;
  --accent: #3d8bfd;
  --ok: #3dd68c;
  --err: #f07178;
  --border: #2a3548;
  --font: "IBM Plex Sans", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", Consolas, monospace;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(1200px 600px at 10% -10%, #1c2a40 0%, var(--bg) 55%);
  color: var(--text);
  font-family: var(--font);
}
.hidden { display: none !important; }
.panel {
  max-width: 360px;
  margin: 12vh auto;
  padding: 2rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
}
h1 { margin: 0 0 .25rem; font-size: 1.35rem; }
.muted { color: var(--muted); font-size: .9rem; }
.error { color: var(--err); min-height: 1.2em; }
.notice {
  background: #243247;
  border: 1px solid var(--accent);
  padding: .75rem 1rem;
  border-radius: 6px;
  word-break: break-all;
  font-family: var(--mono);
  font-size: .85rem;
}
label { display: block; margin: .75rem 0; font-size: .9rem; }
input, select, button {
  font: inherit;
  color: var(--text);
  background: #121925;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: .5rem .75rem;
}
input, select { width: 100%; margin-top: .35rem; }
button {
  cursor: pointer;
  background: var(--accent);
  border-color: transparent;
  color: #fff;
}
button.ghost { background: transparent; border-color: var(--border); color: var(--muted); }
button:disabled { opacity: .5; cursor: not-allowed; }
form.inline { display: flex; gap: .5rem; flex: 1; }
form.inline input { width: auto; flex: 1; margin: 0; }

header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: .75rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: rgba(26, 35, 50, .9);
  position: sticky;
  top: 0;
  z-index: 10;
}
nav { display: flex; gap: .35rem; flex: 1; }
.tab {
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
}
.tab.active {
  color: var(--text);
  border-color: var(--border);
  background: #121925;
}
main { padding: 1.25rem; max-width: 1100px; margin: 0 auto; }
.row { display: flex; gap: .75rem; align-items: center; margin-bottom: 1rem; flex-wrap: wrap; }
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: .55rem .4rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 500; }
.badge {
  display: inline-block;
  padding: .1rem .45rem;
  border-radius: 4px;
  font-size: .75rem;
}
.badge.on { background: rgba(61, 214, 140, .15); color: var(--ok); }
.badge.off { background: rgba(139, 155, 180, .12); color: var(--muted); }
#terminal {
  height: calc(100vh - 140px);
  min-height: 360px;
  background: #000;
  padding: .5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
}
#log-browser { margin-top: 1.5rem; border-top: 1px solid var(--border); padding-top: 1rem; }
#log-tree { list-style: none; padding: 0; max-height: 220px; overflow: auto; }
#log-tree li button {
  background: transparent;
  border: none;
  color: var(--accent);
  padding: .2rem 0;
  font-family: var(--mono);
  font-size: .85rem;
}
#log-preview {
  background: #0a0e14;
  border: 1px solid var(--border);
  padding: 1rem;
  max-height: 420px;
  overflow: auto;
  font-family: var(--mono);
  font-size: .8rem;
  white-space: pre-wrap;
}

.panel-inline {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.panel-inline h3 { margin: 0 0 .75rem; font-size: 1rem; }
.inline-label { display: flex; align-items: center; gap: .4rem; font-size: .9rem; color: var(--muted); }
.inline-label input, .inline-label select { width: auto; min-width: 140px; margin: 0; }
#term-device-id, #logs-device-filter { min-width: 200px; }