* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg: #0f1419; --bg2: #161d26; --bg3: #1e2733;
  --fg: #e6edf3; --muted: #8b98a5; --accent: #4a9eff;
  --ok: #3fb950; --bad: #f85149; --warn: #d29922; --border: #2b3644;
}
body { font-family: system-ui, -apple-system, sans-serif; background: var(--bg); color: var(--fg); min-height: 100vh; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.error { color: var(--bad); margin-top: .5rem; }
code { background: var(--bg3); padding: .15em .4em; border-radius: 4px; font-size: .9em; word-break: break-all; }

/* Login */
#login-view { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-box { background: var(--bg2); border: 1px solid var(--border); border-radius: 12px; padding: 2.5rem; width: 340px; text-align: center; }
.login-box h1 { font-size: 1.4rem; margin-bottom: .3rem; }
.login-box form { margin-top: 1.2rem; display: flex; flex-direction: column; gap: .7rem; }

input, button {
  font: inherit; padding: .55rem .8rem; border-radius: 8px;
  border: 1px solid var(--border); background: var(--bg3); color: var(--fg);
}
input:focus { outline: 2px solid var(--accent); border-color: transparent; }
button { background: var(--accent); border: none; color: #fff; cursor: pointer; font-weight: 600; }
button:hover { filter: brightness(1.1); }
button.ghost { background: transparent; border: 1px solid var(--border); color: var(--muted); }
button.small { padding: .25rem .6rem; font-size: .8rem; }
button.danger { background: transparent; border: 1px solid var(--bad); color: var(--bad); }
.btn-connect { display: inline-block; background: var(--accent); color: #fff; text-decoration: none;
  padding: .25rem .6rem; font-size: .8rem; border-radius: 8px; font-weight: 600; margin-right: .3rem; }
.btn-connect:hover { filter: brightness(1.1); }

/* Layout */
#app-view { display: flex; min-height: 100vh; }
aside { width: 210px; background: var(--bg2); border-right: 1px solid var(--border); padding: 1.2rem .8rem; display: flex; flex-direction: column; gap: 1rem; position: sticky; top: 0; height: 100vh; }
.brand { font-weight: 700; font-size: 1.1rem; line-height: 1.2; padding: 0 .5rem; }
.brand span { color: var(--accent); font-size: .85rem; }
nav { display: flex; flex-direction: column; gap: .2rem; flex: 1; }
.nav-link { color: var(--muted); text-decoration: none; padding: .5rem .7rem; border-radius: 8px; font-size: .95rem; }
.nav-link:hover { background: var(--bg3); color: var(--fg); }
.nav-link.active { background: var(--bg3); color: var(--accent); font-weight: 600; }
main { flex: 1; padding: 1.8rem 2.2rem; max-width: 1200px; }
h2 { margin-bottom: 1rem; }
h3 { margin: 1.5rem 0 .7rem; }
.small-text { font-size: .8rem; font-weight: 400; }

.banner { background: #3a2d12; border: 1px solid var(--warn); color: #e3b341; padding: .7rem 1rem; border-radius: 8px; margin-bottom: 1.2rem; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: .9rem; }
.card { background: var(--bg2); border: 1px solid var(--border); border-radius: 10px; padding: 1rem 1.2rem; }
.card .num { font-size: 1.9rem; font-weight: 700; }
.card .lbl { color: var(--muted); font-size: .85rem; margin-top: .2rem; }
.card.ok .num { color: var(--ok); }
.card.bad .num { color: var(--bad); }

.keybox { background: var(--bg2); border: 1px solid var(--border); border-radius: 10px; padding: .8rem 1rem; display: flex; align-items: center; gap: .8rem; }

/* Tables */
table { width: 100%; border-collapse: collapse; background: var(--bg2); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; font-size: .92rem; }
th, td { text-align: left; padding: .55rem .8rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; background: var(--bg3); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,.02); }

.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; }
.dot.on { background: var(--ok); box-shadow: 0 0 6px var(--ok); }
.dot.off { background: #555; }

.inline-form { display: flex; gap: .6rem; margin-bottom: 1rem; flex-wrap: wrap; }
.note-input { width: 130px; background: transparent; border: 1px solid transparent; padding: .3rem .4rem; }
.note-input:hover, .note-input:focus { border-color: var(--border); background: var(--bg3); }

.tag { display: inline-block; background: var(--bg3); border: 1px solid var(--border); border-radius: 20px; padding: .1rem .6rem; font-size: .8rem; margin: .1rem; }
.ab-book { background: var(--bg2); border: 1px solid var(--border); border-radius: 10px; padding: 1rem 1.2rem; margin-bottom: 1rem; }
.ab-book h4 { margin-bottom: .5rem; }

.setup-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 10px; padding: 1.2rem 1.5rem; }
.setup-card p { margin-bottom: .8rem; }
table.kv { width: auto; min-width: 60%; margin-bottom: .8rem; }
table.kv td:first-child { color: var(--muted); white-space: nowrap; }

@media (max-width: 800px) {
  #app-view { flex-direction: column; }
  aside { width: 100%; height: auto; position: static; flex-direction: row; align-items: center; overflow-x: auto; }
  nav { flex-direction: row; }
  main { padding: 1rem; }
}