:root {
  --bg: #0f1419; --panel: #171e26; --panel2: #1e2731; --line: #2a3542; --text: #e6edf3; --muted: #8b98a5;
  --sun: #f5b400; --batt: #3fb950; --load: #58a6ff; --grid: #d29922; --bad: #f85149; --warn: #e3b341; --ok: #3fb950;
  --mono: ui-monospace, SFMono-Regular, Menlo, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
a { color: var(--load); text-decoration: none; }
.top { display: flex; align-items: center; gap: 24px; padding: 0 20px; height: 52px; background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.brand { font-weight: 700; font-size: 16px; display: flex; align-items: center; gap: 8px; }
.sunicon { width: 14px; height: 14px; border-radius: 50%; background: var(--sun); box-shadow: 0 0 12px var(--sun); display: inline-block; }
nav { display: flex; gap: 2px; flex: 1; overflow-x: auto; }
nav a { color: var(--muted); padding: 6px 12px; border-radius: 6px; white-space: nowrap; }
nav a.active, nav a:hover { color: var(--text); background: var(--panel2); }
.conn { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 12px; white-space: nowrap; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--bad); }
.conn.ok .dot { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
main { padding: 20px; max-width: 1400px; margin: 0 auto; }
h1 { font-size: 20px; margin: 0 0 16px; } h2 { font-size: 15px; margin: 0 0 10px; color: var(--text); } h3 { font-size: 13px; color: var(--muted); margin: 14px 0 6px; text-transform: uppercase; letter-spacing: .04em; }
.grid { display: grid; gap: 16px; } .g2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); } .g3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); } .g4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px; min-width: 0; overflow-x: auto; }
.card.span2 { grid-column: span 2; } @media (max-width: 800px) { .card.span2 { grid-column: span 1; } }
.kpi { display: flex; flex-direction: column; gap: 2px; } .kpi .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.kpi .value { font-size: 28px; font-weight: 600; font-variant-numeric: tabular-nums; } .kpi .sub { color: var(--muted); font-size: 12px; }
.kpi.sun .value { color: var(--sun); } .kpi.batt .value { color: var(--batt); } .kpi.load .value { color: var(--load); } .kpi.grid .value { color: var(--grid); }
.muted { color: var(--muted); } .small { font-size: 12px; } .mono { font-family: var(--mono); font-size: 12px; } .right { text-align: right; } .row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.tag { display: inline-block; padding: 1px 8px; border-radius: 10px; font-size: 11px; background: var(--panel2); color: var(--muted); border: 1px solid var(--line); }
.tag.ok { color: var(--ok); border-color: var(--ok); } .tag.bad { color: var(--bad); border-color: var(--bad); } .tag.warn { color: var(--warn); border-color: var(--warn); } .tag.sun { color: var(--sun); border-color: var(--sun); }
button, .btn { background: var(--panel2); color: var(--text); border: 1px solid var(--line); padding: 7px 14px; border-radius: 6px; cursor: pointer; font: inherit; }
button:hover { border-color: var(--muted); } button.primary { background: #1f6feb; border-color: #1f6feb; } button.danger { color: var(--bad); } button.sm { padding: 3px 9px; font-size: 12px; } button:disabled { opacity: .5; cursor: default; }
input, select, textarea { background: var(--bg); color: var(--text); border: 1px solid var(--line); border-radius: 6px; padding: 6px 9px; font: inherit; }
input[type=number] { width: 110px; } textarea { width: 100%; font-family: var(--mono); font-size: 12px; }
label { display: flex; flex-direction: column; gap: 3px; font-size: 12px; color: var(--muted); } label > input, label > select { color: var(--text); }
.form { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; margin-bottom: 12px; }
.check { flex-direction: row; align-items: center; gap: 6px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; } th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; } th { color: var(--muted); font-weight: 500; font-size: 12px; } td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.scroll { overflow: auto; max-height: 520px; } .log { font-family: var(--mono); font-size: 12px; background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 8px; max-height: 300px; overflow: auto; white-space: pre-wrap; word-break: break-all; }
.log .tx { color: var(--sun); } .log .rx { color: var(--batt); } .log .err { color: var(--bad); } .log .note { color: var(--muted); }
.progress { height: 6px; background: var(--panel2); border-radius: 3px; overflow: hidden; margin: 8px 0; } .progress > div { height: 100%; background: var(--load); transition: width .2s; }
.changed { background: rgba(245,180,0,.18); } tr.sel { outline: 1px solid var(--load); } tr.clickable { cursor: pointer; }
.flow { width: 100%; max-width: 760px; margin: 0 auto; display: block; }
.flow text { fill: var(--text); font-size: 13px; } .flow .lbl { fill: var(--muted); font-size: 11px; } .flow .big { font-size: 20px; font-weight: 600; }
.flow .pipe { fill: none; stroke: var(--line); stroke-width: 6; stroke-linecap: round; }
.flow .anim { fill: none; stroke-width: 6; stroke-linecap: round; stroke-dasharray: 10 14; animation: dash 1.2s linear infinite; } .flow .anim.rev { animation-direction: reverse; }
.flow .node { fill: var(--panel2); stroke: var(--line); stroke-width: 1.5; }
@keyframes dash { to { stroke-dashoffset: -24; } }
.soc { height: 14px; background: var(--panel2); border-radius: 7px; overflow: hidden; border: 1px solid var(--line); } .soc > div { height: 100%; background: var(--batt); }
.alarm { border-left: 3px solid var(--bad); padding-left: 10px; margin: 6px 0; } .warnbox { border-left: 3px solid var(--warn); padding-left: 10px; margin: 6px 0; }
.chart { position: relative; height: 280px; } .chart.tall { height: 340px; }
details { margin: 8px 0; } summary { cursor: pointer; color: var(--muted); }
#toast { position: fixed; bottom: 20px; right: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 10; }
#toast div { background: var(--panel2); border: 1px solid var(--line); padding: 10px 14px; border-radius: 8px; box-shadow: 0 4px 20px rgba(0,0,0,.4); } #toast .bad { border-color: var(--bad); }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 4px 14px; font-size: 13px; } .kv dt { color: var(--muted); } .kv dd { margin: 0; font-variant-numeric: tabular-nums; }
code { font-family: var(--mono); background: var(--bg); padding: 1px 5px; border-radius: 4px; font-size: 12px; }
.money { font-size: 34px; font-weight: 700; color: var(--batt); }

/* ---------- mobile ---------- */
@media (max-width: 720px) {
  .top { gap: 8px; padding: 0 8px; height: 48px; }
  .brand { font-size: 14px; gap: 6px; }
  nav { gap: 0; }
  nav a { padding: 10px 9px; font-size: 13px; }
  #conn-text { display: none; }                      /* dot only; details live on Settings */
  main { padding: 12px 10px 28px; }
  h1 { font-size: 18px; margin-bottom: 12px; }
  h2 { font-size: 14px; }
  .grid { gap: 10px; }
  .card { padding: 12px; border-radius: 8px; }
  .kpi .value { font-size: 22px; }
  .money { font-size: 26px; }
  table { font-size: 12px; }
  th, td { padding: 5px 6px; white-space: nowrap; }
  .kv { grid-template-columns: max-content 1fr; font-size: 12px; }
  .chart { height: 220px; } .chart.tall { height: 260px; }
  .form { gap: 8px; }
  input, select, textarea { font-size: 16px; }       /* stops iOS zoom-on-focus */
  input[type=number] { width: 90px; }
  button, .btn { padding: 9px 14px; }                /* thumb-sized */
  .log { font-size: 11px; max-height: 220px; }
}