:root {
  --navy: #0b1d4a;
  --navy-2: #102a66;
  --blue: #0a5bd8;
  --cyan: #12b4f2;
  --grad: linear-gradient(135deg, #0a3fb0 0%, #0a5bd8 45%, #12b4f2 100%);
  --bg: #f3f6fb;
  --card: #ffffff;
  --text: #0f1b33;
  --muted: #61708a;
  --line: #e3e9f3;
  --ok: #10a36b;
  --ok-bg: #e6f7ef;
  --warn: #d98b00;
  --warn-bg: #fff4dc;
  --err: #d6334a;
  --err-bg: #fdecef;
  --info-bg: #e7f0ff;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(15, 27, 51, .05), 0 4px 16px rgba(15, 27, 51, .05);
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.45; }
a { color: var(--blue); text-decoration: none; }
h1 { font-size: 22px; margin: 0; letter-spacing: -.01em; }
h2 { font-size: 16px; margin: 0 0 12px; }
h3 { font-size: 14px; margin: 0 0 8px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12.5px; }

/* layout */
.app { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.side { background: var(--card); border-right: 1px solid var(--line); display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; }
.side .brand { padding: 18px 18px 10px; border-bottom: 1px solid var(--line); }
.side .brand img { width: 100%; display: block; }
.nav { padding: 10px; display: flex; flex-direction: column; gap: 2px; overflow: auto; flex: 1; }
.nav a { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 10px; color: var(--text); font-weight: 500; }
.nav a svg { width: 18px; height: 18px; stroke: var(--muted); flex: none; }
.nav a:hover { background: var(--bg); }
.nav a.active { background: var(--info-bg); color: var(--blue); }
.nav a.active svg { stroke: var(--blue); }
.nav .sep { height: 1px; background: var(--line); margin: 8px 6px; }
.side .me { padding: 12px 16px; border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.main { min-width: 0; }
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 20px 28px 8px; flex-wrap: wrap; }
.content { padding: 12px 28px 40px; }
.menu-btn { display: none; }

/* cards & grids */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; }
.grid { display: grid; gap: 16px; }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.kpi .label { color: var(--muted); font-size: 12.5px; font-weight: 500; }
.kpi .value { font-size: 26px; font-weight: 700; letter-spacing: -.02em; margin-top: 4px; font-variant-numeric: tabular-nums; }
.kpi .sub { color: var(--muted); font-size: 12px; margin-top: 2px; }
.kpi.accent { background: var(--grad); color: #fff; border: 0; }
.kpi.accent .label, .kpi.accent .sub { color: rgba(255, 255, 255, .85); }
.mt { margin-top: 16px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }
.muted { color: var(--muted); }
.small { font-size: 12px; }

/* table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 12px; color: var(--muted); font-weight: 600; padding: 8px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
td { padding: 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tr.click { cursor: pointer; }
tr.click:hover td { background: #f8fafe; }
.empty { text-align: center; color: var(--muted); padding: 28px; }

/* badges */
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; background: var(--bg); color: var(--muted); }
.badge::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.b-ok { background: var(--ok-bg); color: var(--ok); }
.b-warn { background: var(--warn-bg); color: var(--warn); }
.b-err { background: var(--err-bg); color: var(--err); }
.b-info { background: var(--info-bg); color: var(--blue); }

/* forms */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 1px solid var(--line); background: var(--card); color: var(--text); padding: 8px 14px; border-radius: 10px; font: inherit; font-weight: 600; cursor: pointer; white-space: nowrap; }
.btn:hover { border-color: #c9d4e6; }
.btn.primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn.primary:hover { background: #084bb5; }
.btn.danger { color: var(--err); }
.btn.sm { padding: 5px 10px; font-size: 12.5px; border-radius: 8px; }
.btn:disabled { opacity: .55; cursor: default; }
label.f { display: flex; flex-direction: column; gap: 5px; font-size: 12.5px; font-weight: 600; color: var(--muted); }
input, select, textarea { font: inherit; color: var(--text); background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 9px 11px; width: 100%; }
input:focus, select:focus, textarea:focus { outline: 2px solid rgba(10, 91, 216, .25); border-color: var(--blue); }
textarea { min-height: 90px; font-family: ui-monospace, Menlo, monospace; font-size: 12.5px; }
.form { display: grid; gap: 14px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.form .full { grid-column: 1 / -1; }
.check { display: flex; gap: 8px; align-items: center; font-weight: 500; color: var(--text); font-size: 13.5px; }
.check input { width: auto; }
.hint { font-size: 12px; color: var(--muted); font-weight: 400; }

/* charger cards */
.chargers { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 16px; }
.ch { cursor: pointer; transition: transform .12s, box-shadow .12s; }
.ch:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(15, 27, 51, .08); }
.ch .head { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.ch .name { font-weight: 700; font-size: 15px; }
.ch .id { color: var(--muted); font-size: 12px; font-family: ui-monospace, Menlo, monospace; }
.conns { display: flex; gap: 8px; margin-top: 14px; flex-wrap: wrap; }
.conn { flex: 1; min-width: 80px; border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; }
.conn .n { font-size: 11px; color: var(--muted); font-weight: 600; }
.conn .s { font-weight: 700; font-size: 13px; margin-top: 2px; }
.conn .p { font-size: 12px; color: var(--muted); }
.s-Available { color: var(--ok); }
.s-Charging { color: var(--blue); }
.s-Preparing, .s-SuspendedEV, .s-SuspendedEVSE, .s-Finishing, .s-Reserved { color: var(--warn); }
.s-Faulted, .s-Unavailable { color: var(--err); }

/* bars */
.bars { display: flex; align-items: flex-end; gap: 6px; height: 160px; padding-top: 10px; }
.bars .b { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; height: 100%; justify-content: flex-end; min-width: 0; }
.bars .b i { display: block; width: 100%; max-width: 28px; background: var(--grad); border-radius: 6px 6px 2px 2px; min-height: 2px; }
.bars .b span { font-size: 10.5px; color: var(--muted); white-space: nowrap; }
.bars .b:hover i { filter: brightness(1.1); }

/* modal & toast */
.modal-bg { position: fixed; inset: 0; background: rgba(11, 29, 74, .45); display: flex; align-items: center; justify-content: center; padding: 16px; z-index: 50; }
.modal { background: var(--card); border-radius: 16px; width: 100%; max-width: 620px; max-height: calc(100vh - 32px); overflow: auto; padding: 22px; box-shadow: 0 20px 60px rgba(0, 0, 0, .25); }
.modal .actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }
.toast { position: fixed; bottom: 20px; right: 20px; background: var(--navy); color: #fff; padding: 12px 16px; border-radius: 12px; z-index: 60; max-width: 380px; box-shadow: 0 10px 30px rgba(0, 0, 0, .2); }
.toast.err { background: var(--err); }
pre.json { background: #0d1630; color: #cfe1ff; padding: 12px; border-radius: 10px; overflow: auto; max-height: 360px; font-size: 12px; margin: 0; white-space: pre-wrap; word-break: break-all; }
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 16px; flex-wrap: wrap; }
.tabs a { padding: 9px 14px; color: var(--muted); font-weight: 600; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs a.active { color: var(--blue); border-color: var(--blue); }
.kv { display: grid; grid-template-columns: 150px 1fr; gap: 8px 12px; font-size: 13.5px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-all; }
.copy { display: flex; gap: 6px; }
.copy input { font-family: ui-monospace, Menlo, monospace; font-size: 12.5px; }
.log-in { color: var(--ok); } .log-out { color: var(--blue); } .log-up { color: #8a4bd8; }

/* login */
.login { min-height: 100vh; display: grid; place-items: center; background: radial-gradient(circle at 20% 10%, #12306f 0%, var(--navy) 55%, #060f29 100%); padding: 16px; }
.login .card { width: 100%; max-width: 400px; padding: 30px; }
.login img { width: 100%; max-width: 300px; display: block; margin: 0 auto 18px; }

@media (max-width: 1100px) { .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .g3 { grid-template-columns: 1fr; } }
@media (max-width: 820px) {
  .app { grid-template-columns: 1fr; }
  .side { position: fixed; z-index: 40; width: 260px; left: -270px; transition: left .2s; box-shadow: 0 0 40px rgba(0, 0, 0, .2); }
  .side.open { left: 0; }
  .menu-btn { display: inline-flex; }
  .top, .content { padding-left: 16px; padding-right: 16px; }
  .g2, .form { grid-template-columns: 1fr; }
  .kv { grid-template-columns: 1fr; }
}
@media (max-width: 480px) { .g4 { grid-template-columns: 1fr; } }

/* charging curve */
.stats { display: flex; flex-wrap: wrap; gap: 10px; }
.stat { background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 8px 14px; min-width: 110px; }
.stat b { font-size: 18px; font-variant-numeric: tabular-nums; }
.chart-legend { display: flex; gap: 16px; font-size: 12.5px; color: var(--muted); margin-bottom: 6px; }
.chart-legend i { display: inline-block; width: 14px; height: 3px; border-radius: 2px; vertical-align: middle; margin-right: 6px; }
.lg-p { background: var(--blue); }
.lg-s { background: var(--ok); }
.chart-box { position: relative; }
.chart { display: block; max-width: 100%; }
.chart .cg { stroke: var(--line); }
.chart .ct { fill: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.chart .ca { fill: var(--blue); opacity: .12; }
.chart .cl { fill: none; stroke: var(--blue); stroke-width: 2; stroke-linejoin: round; }
.chart .cs { fill: none; stroke: var(--ok); stroke-width: 2; stroke-dasharray: 5 4; stroke-linejoin: round; }
.chart .cx { stroke: var(--muted); stroke-dasharray: 3 3; }
.chart .cd { fill: var(--blue); stroke: #fff; stroke-width: 2; }
.chart-tip { position: absolute; top: 10px; background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: 8px; padding: 6px 10px; font-size: 12.5px; pointer-events: none; white-space: nowrap; }
.chart .cm { fill: var(--warn); stroke: #fff; stroke-width: 2; }
.chart .cmt { fill: var(--warn); font-weight: 600; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 9px; overflow: hidden; }
.seg button { border: 0; background: var(--card); color: var(--muted); padding: 6px 12px; font: inherit; font-size: 13px; cursor: pointer; }
.seg button + button { border-left: 1px solid var(--line); }
.seg button.on { background: var(--info-bg); color: var(--blue); font-weight: 600; }
.log-chip { display: inline-block; margin: 2px 8px 2px 0; color: var(--text); }
.log-chip + .log-chip::before { content: '·'; color: var(--muted); margin-right: 8px; }
.log-err { color: var(--err); }
.log-raw summary { display: inline; cursor: pointer; color: var(--muted); font-size: 11.5px; margin-left: 4px; }
.log-raw { display: inline; }
.log-raw[open] { display: block; }
.log-raw[open] div { word-break: break-all; font-size: 11.5px; color: var(--muted); margin-top: 4px; }

/* alerts */
.nav-count { margin-left: auto; min-width: 20px; padding: 1px 7px; border-radius: 999px; font-size: 11.5px; font-weight: 700; text-align: center; background: var(--warn-bg); color: var(--warn); }
.nav-count:empty { display: none; }
.nav-count.crit { background: var(--err); color: #fff; }
.alert-card { border-left: 4px solid var(--err); }
.alert-card h2 svg { width: 18px; height: 18px; stroke: var(--err); vertical-align: -3px; }
.alert-line { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding: 6px 0; border-top: 1px solid var(--line); }
.alert-line:first-child { border-top: 0; }
.alert-kpi { border-left: 4px solid var(--err); }
tr.muted-row td { opacity: .65; }
.warn-box { background: var(--warn-bg); color: var(--text); border-left: 4px solid var(--warn); border-radius: 8px; padding: 10px 12px; font-size: 13.5px; }
.top .btn svg { vertical-align: -3px; margin-right: 2px; }
.stat-eta { border-color: var(--blue); background: var(--info-bg); }
.stat-eta b { color: var(--blue); }
.log-up2 { color: #c2410c; }