:root {
  --bg: #070b14; --panel: #0e1626; --panel2: #121c30; --line: #1e2b44; --line2: #2a3a58;
  --text: #e7eef8; --muted: #8496b0; --dim: #4d5d78;
  --grid: #4f9dff; --pv: #ffc83d; --bess: #fd6500; --load: #c9d4e5; --none: #45546e;
  --ok: #2fd27e; --warn: #ffb020; --alarm: #ff4d5e; --info: #4f9dff;
  --r: 12px;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.4 "Segoe UI", "Inter", system-ui, sans-serif; }
body { background: radial-gradient(1200px 600px at 70% -10%, #11203d 0%, transparent 60%), var(--bg); min-height: 100vh; }
b, .num { font-variant-numeric: tabular-nums; }
button { font: inherit; }

.top { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 16px; padding: 10px 24px;
  background: rgba(7, 11, 20, .9); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand b { display: block; font-size: 16px; letter-spacing: .2px; }
.brand small { display: block; color: var(--muted); font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 42vw; }
.logo { width: 34px; height: 34px; border-radius: 9px; background: var(--bess); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: 18px; flex: none; }
.pills { display: flex; gap: 8px; flex-wrap: wrap; }
.pill { padding: 4px 10px; border-radius: 999px; font-size: 12px; border: 1px solid; white-space: nowrap; }
.pill.ok { color: var(--ok); border-color: rgba(47, 210, 126, .35); background: rgba(47, 210, 126, .08); }
.pill.demo { color: var(--warn); border-color: rgba(255, 176, 32, .35); background: rgba(255, 176, 32, .08); }
.right { margin-left: auto; display: flex; align-items: center; gap: 16px; }
.alarmcount { min-width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; font-weight: 700;
  background: var(--panel2); color: var(--muted); border: 1px solid var(--line); }
.alarmcount.on { background: rgba(255, 77, 94, .15); color: var(--alarm); border-color: rgba(255, 77, 94, .5); animation: pulse 1.6s infinite; }
.link { width: 10px; height: 10px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 10px var(--ok); }
.link.down { background: var(--alarm); box-shadow: 0 0 10px var(--alarm); }
.clock { text-align: right; }
.clock b { font-size: 22px; display: block; line-height: 1; }
.clock small { color: var(--muted); font-size: 11px; }

.wrap { max-width: 1840px; margin: 0 auto; padding: 18px 24px 30px; }
.panel { background: linear-gradient(180deg, var(--panel2), var(--panel)); border: 1px solid var(--line); border-radius: var(--r); padding: 14px 16px; }
.phead { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; flex-wrap: wrap; }
.phead h2 { margin: 0; font-size: 13px; font-weight: 600; letter-spacing: .6px; text-transform: uppercase; color: #b9c6da; }
.hint { color: var(--muted); font-size: 12px; margin-left: auto; }

.kpis { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; margin-bottom: 14px; }
.kpi { position: relative; overflow: hidden; }
.kpi .lbl { color: var(--muted); font-size: 12px; display: flex; align-items: center; gap: 6px; }
.kpi .val { font-size: 30px; font-weight: 600; margin: 6px 0 4px; white-space: nowrap; }
.kpi .val small { font-size: 14px; color: var(--muted); font-weight: 400; margin-left: 4px; }
.kpi .sub { color: var(--muted); font-size: 12px; min-height: 17px; }
.kpi::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 3px; background: var(--accent, var(--line2)); }
.kpi.k-grid { --accent: var(--grid); } .kpi.k-pv { --accent: var(--pv); } .kpi.k-bess { --accent: var(--bess); }
.kpi.k-plan { --accent: var(--ok); } .kpi.k-price { --accent: #b28cff; } .kpi.k-soc { --accent: var(--bess); }
.chip { font-size: 11px; padding: 1px 8px; border-radius: 999px; background: var(--panel); border: 1px solid var(--line2); color: var(--muted); }
.chip.charge { color: var(--ok); border-color: rgba(47, 210, 126, .4); }
.chip.discharge { color: var(--bess); border-color: rgba(253, 101, 0, .5); }
.chip.demo { color: var(--warn); border-color: rgba(255, 176, 32, .4); }
.chip.bad { color: var(--alarm); border-color: rgba(255, 77, 94, .5); }
.bar { height: 6px; border-radius: 4px; background: #0a1220; border: 1px solid var(--line); overflow: hidden; margin-top: 8px; position: relative; }
.bar i { display: block; height: 100%; background: var(--accent); border-radius: 4px; transition: width .8s; }
.bar .mark { position: absolute; top: -3px; bottom: -3px; width: 2px; background: #fff; opacity: .8; }
.dev.pos { color: var(--warn); } .dev.neg { color: var(--info); } .dev.okv { color: var(--ok); }

.grid { display: grid; grid-template-columns: minmax(0, 2.1fr) minmax(320px, 1fr); gap: 14px; margin-bottom: 14px; }
.side { display: grid; gap: 14px; grid-template-rows: 1fr auto; min-width: 0; }
#sld { width: 100%; height: auto; display: block; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; color: var(--muted); font-size: 12px; margin-top: 8px; }
.legend i { display: inline-block; width: 18px; height: 3px; border-radius: 2px; margin-right: 6px; vertical-align: middle; }
.c-grid { background: var(--grid); } .c-pv { background: var(--pv); } .c-bess { background: var(--bess); }
.c-load { background: var(--load); } .c-none { background: repeating-linear-gradient(90deg, var(--none) 0 4px, transparent 4px 7px); }

/* single line diagram */
.sld-wire { fill: none; stroke: var(--line2); stroke-width: 2.5; }
.sld-bus { stroke: #5b6f92; stroke-width: 6; stroke-linecap: round; }
.sld-bus.dim, .sld-wire.dim { stroke: var(--none); stroke-dasharray: 5 6; }
.flow { fill: none; stroke-width: 3; stroke-linecap: round; stroke-dasharray: 2 14; opacity: 0; }
.flow.on { opacity: 1; animation: dash linear infinite; }
.flow.rev { animation-direction: reverse; }
.flow.grid { stroke: var(--grid); } .flow.pv { stroke: var(--pv); } .flow.bess { stroke: var(--bess); } .flow.load { stroke: var(--load); }
@keyframes dash { to { stroke-dashoffset: -32; } }
.node rect { fill: #0b1322; stroke: var(--line2); stroke-width: 1.2; }
.node.bad rect { stroke: var(--alarm); }
.node.stale rect { stroke: var(--warn); }
.node.dim rect { stroke: var(--none); stroke-dasharray: 4 4; fill: transparent; }
.node .t { fill: var(--muted); font-size: 12px; }
.node .v { fill: var(--text); font-size: 17px; font-weight: 600; }
.node .s { fill: var(--muted); font-size: 11px; }
.node.dim .t, .node.dim .s { fill: var(--dim); }
.xf { fill: none; stroke: #7f93b5; stroke-width: 2; }
.xf.dim { stroke: var(--none); }
.lbl { fill: var(--muted); font-size: 12px; }
.lbl.big { fill: #b9c6da; font-size: 13px; font-weight: 600; letter-spacing: .4px; }
.dot { r: 5; }
.dot.ok { fill: var(--ok); } .dot.bad { fill: var(--alarm); } .dot.stale { fill: var(--warn); } .dot.none { fill: var(--none); }
.socfill { fill: var(--bess); opacity: .85; transition: height .8s, y .8s; }

/* events */
.tabs { margin-left: auto; display: flex; gap: 4px; }
.tabs button { background: transparent; border: 1px solid var(--line); color: var(--muted); border-radius: 7px; padding: 3px 9px; font-size: 12px; cursor: pointer; }
.tabs button.on { color: var(--text); border-color: var(--line2); background: var(--panel); }
.events { list-style: none; margin: 0; padding: 0; max-height: 330px; overflow: auto; }
.events li { display: grid; grid-template-columns: 10px 52px 1fr; gap: 10px; padding: 8px 4px; border-bottom: 1px solid var(--line); font-size: 13px; align-items: start; }
.events li .lv { width: 8px; height: 8px; border-radius: 50%; margin-top: 6px; }
.events li.alarm .lv { background: var(--alarm); box-shadow: 0 0 8px var(--alarm); }
.events li.warning .lv { background: var(--warn); } .events li.info .lv { background: var(--info); }
.events li time { color: var(--muted); font-variant-numeric: tabular-nums; }
.events .empty { color: var(--muted); grid-template-columns: 1fr; }
.equip { list-style: none; margin: 0; padding: 0; }
.equip li { display: flex; align-items: center; gap: 10px; padding: 7px 2px; border-bottom: 1px solid var(--line); font-size: 13px; }
.equip li .st { margin-left: auto; font-size: 12px; color: var(--muted); text-align: right; }
.led { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.led.ok { background: var(--ok); box-shadow: 0 0 8px rgba(47, 210, 126, .7); } .led.bad { background: var(--alarm); box-shadow: 0 0 8px var(--alarm); }
.led.stale { background: var(--warn); } .led.none { background: var(--none); }

/* day chart */
.chartbox { position: relative; }
#daychart { width: 100%; height: 300px; display: block; }
.chartbox.small #pricechart { width: 100%; height: 130px; display: block; margin-top: 6px; }
.axis { fill: var(--muted); font-size: 11px; }
.gridline { stroke: var(--line); stroke-width: 1; }
.nowline { stroke: #fff; stroke-opacity: .35; stroke-dasharray: 3 4; }
.tip { position: absolute; pointer-events: none; background: rgba(10, 16, 28, .96); border: 1px solid var(--line2); border-radius: 8px;
  padding: 8px 10px; font-size: 12px; min-width: 190px; box-shadow: 0 8px 24px rgba(0, 0, 0, .4); }
.tip b { display: block; margin-bottom: 4px; }
.tip div { display: flex; justify-content: space-between; gap: 12px; }
.tip i { display: inline-block; width: 10px; height: 3px; margin-right: 6px; vertical-align: middle; }
.foot { color: var(--dim); font-size: 12px; margin-top: 16px; display: flex; flex-wrap: wrap; gap: 6px 20px; }

@keyframes pulse { 50% { box-shadow: 0 0 0 6px rgba(255, 77, 94, 0); } 0% { box-shadow: 0 0 0 0 rgba(255, 77, 94, .5); } }

@media (max-width: 1500px) { .kpi .val { font-size: 26px; } }
@media (max-width: 1280px) { .kpis { grid-template-columns: repeat(3, minmax(0, 1fr)); } .grid { grid-template-columns: 1fr; } .side { grid-template-columns: 1fr 1fr; grid-template-rows: auto; } }
@media (max-width: 760px) {
  .top { flex-wrap: wrap; padding: 10px 14px; } .wrap { padding: 12px; } .kpis { grid-template-columns: 1fr 1fr; }
  .side { grid-template-columns: 1fr; } .brand small { max-width: 60vw; } .kpi .val { font-size: 22px; }
}
@media (prefers-reduced-motion: reduce) { .flow.on { animation: none; stroke-dasharray: none; } .alarmcount.on { animation: none; } }