:root {
  --bg: #0f1220;
  --fg: #e6e9f5;
  --muted: #8a90a6;
  --accent: #4c8dff;
  --ok: #34d399;
  --warn: #f59e0b;
  --err: #f87171;
  --card: #181c2c;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.5;
}
header { padding: 1.2rem 1rem 0; }
header h1 { margin: 0 0 .2rem; font-size: 1.15rem; }
.hint { color: var(--muted); font-size: .85rem; margin: 0; }
main { padding: 1rem; max-width: 30rem; margin: 0 auto; }
fieldset {
  border: 1px solid #2a3048;
  background: var(--card);
  border-radius: 10px;
  padding: .8rem 1rem 1rem;
  margin-bottom: 1rem;
}
fieldset:disabled { opacity: .55; }
legend { color: var(--muted); padding: 0 .4rem; font-size: .85rem; }
label { display: block; margin: .6rem 0; }
input[type="text"], input[type="password"] {
  width: 100%;
  padding: .6rem .7rem;
  background: #0c0f1c;
  border: 1px solid #2a3048;
  color: var(--fg);
  border-radius: 8px;
  font-size: 1rem;
}
button {
  background: var(--accent);
  color: #fff;
  border: 0;
  border-radius: 8px;
  padding: .6rem 1rem;
  font-size: 1rem;
  cursor: pointer;
}
button:disabled { opacity: .5; cursor: default; }
.btn-secondary {
  background: transparent;
  color: var(--muted);
  border: 1px solid #2a3048;
}
.actions { text-align: right; }
.actions button + button { margin-left: .5rem; }
.busy-hint {
  color: var(--warn);
  font-size: .85rem;
  margin-top: .6rem;
}
.status {
  display: flex; align-items: center; gap: .5rem;
  font-size: .9rem; color: var(--muted);
  margin-top: .8rem;
}
.dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--muted); display: inline-block;
}
.dot.s0, .dot.s4, .dot.s6, .dot.s7 { background: var(--err); }
.dot.s1 { background: var(--ok); }
.dot.s2 { background: var(--warn); }
.dot.s3 { background: var(--ok); }
.banner {
  background: #3a1d1d; border: 1px solid #5a2a2a;
  color: var(--err); padding: .7rem .9rem; border-radius: 8px;
  font-size: .85rem; margin-bottom: 1rem;
}
.banner a { color: var(--accent); }
.hidden { display: none; }

/* ---- device wifi status bar ---- */
.wifi-status {
  display: flex; align-items: center; gap: .6rem;
  background: var(--card); border: 1px solid #2a3048;
  border-radius: 10px; padding: .7rem .9rem; margin-bottom: 1rem;
}
.ws-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.ws-dot.on { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.ws-dot.off { background: var(--muted); }
.ws-text { display: flex; flex-direction: column; line-height: 1.3; }
.ws-ssid { font-weight: 600; font-size: .95rem; }
.ws-ip { color: var(--muted); font-size: .8rem; }

/* ---- list item states ---- */
.wifi-list li.connected {
  border: 1px solid var(--ok); background: rgba(52,211,153,.08);
}
.wifi-list li.saved { border-left: 3px solid var(--accent); }
.wifi-tags { display: flex; gap: .3rem; margin-left: auto; padding-right: .4rem; }
.wifi-tag {
  font-size: .7rem; padding: 1px 6px; border-radius: 10px; white-space: nowrap;
}
.tag-on { background: rgba(52,211,153,.2); color: var(--ok); }
.tag-saved { background: rgba(76,141,255,.2); color: var(--accent); }
progress { width: 100%; height: 4px; margin-top: .8rem; }

/* ---- WiFi scan list ---- */
.scan-row { display: flex; align-items: center; gap: .6rem; margin-bottom: .4rem; }
.scan-row button { padding: .4rem .8rem; font-size: .9rem; }
.scan-hint { color: var(--muted); font-size: .8rem; }
.wifi-list {
  list-style: none;
  margin: 0 0 .6rem;
  padding: 0;
  max-height: 12rem;
  overflow-y: auto;
}
.wifi-list:empty { display: none; }
.wifi-list li {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem .6rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: .9rem;
}
.wifi-list li:hover { background: #232842; }
.wifi-name { flex: 1; word-break: break-all; }
.wifi-bars { font-family: monospace; letter-spacing: 1px; opacity: .85; }
.wifi-bars.b4 { color: var(--ok); }
.wifi-bars.b3 { color: var(--ok); }
.wifi-bars.b2 { color: var(--warn); }
.wifi-bars.b1 { color: var(--err); }
.wifi-bars.b0 { color: var(--muted); }
.wifi-lock { font-size: .85rem; }