:root {
  --bg: #060a13;
  --panel: rgba(11, 16, 29, 0.88);
  --panel-solid: #0b101d;
  --line: rgba(150, 172, 215, 0.14);
  --line-2: rgba(150, 172, 215, 0.24);
  --text: #dde6f5;
  --muted: #8593ad;
  --dim: #5d6a85;
  --mint: #34e3a4;
  --blue: #70c8ff;
  --amber: #ffc857;
  --hot: #ff5c5c;
  --pink: #ff3d9a;
  --r: 12px;
  --font: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; overflow: hidden; background: var(--bg); color: var(--text); font: 13px/1.4 var(--font); }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
button:focus-visible, input:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

#view { position: fixed; inset: 0; width: 100vw; height: 100vh; display: block; touch-action: none; }
#view.tool-inspect { cursor: default; }
#view.tool-inspect.grab { cursor: grab; }
#view.panning { cursor: grabbing !important; }
#view.tool-wall, #view.tool-exit, #view.tool-pillar { cursor: crosshair; }
#view.tool-people, #view.tool-erase { cursor: none; }
#view.over-exit { cursor: pointer; }

.glass {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

/* ---------------------------------------------------------------- top bar */
#topbar {
  position: fixed; top: 0; left: 0; right: 0; height: 52px; z-index: 20;
  display: flex; align-items: center; gap: 14px; padding: 0 14px;
  background: linear-gradient(180deg, rgba(8, 12, 23, 0.97), rgba(8, 12, 23, 0.86));
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}
.brand { display: flex; align-items: center; gap: 9px; min-width: 176px; }
.brand svg { width: 28px; height: 28px; }
.brand b { display: block; font-size: 15px; letter-spacing: 0.22em; font-weight: 800; }
.brand span { display: block; font-size: 10.5px; color: var(--muted); letter-spacing: 0.04em; margin-top: -1px; }
.scenario-btn {
  display: flex; align-items: center; gap: 8px; height: 34px; padding: 0 10px 0 12px;
  border: 1px solid var(--line-2); border-radius: 9px; background: rgba(255, 255, 255, 0.03);
}
.scenario-btn:hover { background: rgba(255, 255, 255, 0.07); }
.scenario-btn .lbl { font-size: 10.5px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.scenario-btn b { font-weight: 650; min-width: 104px; text-align: left; }
.scenario-btn svg { width: 12px; height: 12px; color: var(--muted); }
.transport { display: flex; align-items: center; gap: 6px; }
.icon-btn {
  width: 34px; height: 34px; border-radius: 9px; display: grid; place-items: center;
  border: 1px solid var(--line-2); background: rgba(255, 255, 255, 0.03); font-weight: 700;
}
.icon-btn:hover { background: rgba(255, 255, 255, 0.08); }
.icon-btn svg { width: 16px; height: 16px; fill: currentColor; }
.icon-btn.primary { background: var(--mint); color: #04140d; border-color: transparent; }
.icon-btn.primary:hover { background: #5ff0bb; }
.icon-btn .i-play { display: none; }
.icon-btn.paused .i-play { display: block; }
.icon-btn.paused .i-pause { display: none; }
.seg { display: flex; padding: 2px; border: 1px solid var(--line-2); border-radius: 9px; background: rgba(255, 255, 255, 0.02); }
.seg button { height: 28px; padding: 0 9px; border-radius: 7px; color: var(--muted); font-weight: 600; font-size: 12px; }
.seg button:hover { color: var(--text); }
.seg button.on { background: rgba(112, 200, 255, 0.16); color: #e8f6ff; box-shadow: inset 0 0 0 1px rgba(112, 200, 255, 0.35); }
.clock { display: flex; align-items: baseline; gap: 6px; padding-left: 4px; }
.clock span { color: var(--dim); font: 600 11px var(--mono); }
.clock b { font: 600 19px var(--mono); letter-spacing: 0.02em; min-width: 82px; }
.status {
  font: 700 10px var(--font); letter-spacing: 0.1em; padding: 3px 7px; border-radius: 6px; font-style: normal;
  color: var(--mint); background: rgba(52, 227, 164, 0.12); align-self: center;
}
.status.paused { color: var(--amber); background: rgba(255, 200, 87, 0.12); }
.status.done { color: #04140d; background: var(--mint); }
.status.stalled { color: #fff; background: var(--hot); }
.status.lag { color: #b8c4dc; background: rgba(150, 170, 210, 0.14); }
.spacer { flex: 1; }

/* ---------------------------------------------------------------- tool rail */
#toolbar {
  position: fixed; left: 12px; top: 64px; z-index: 15; width: 64px; padding: 6px;
  display: flex; flex-direction: column; gap: 3px;
}
#toolbar hr { width: 70%; border: 0; border-top: 1px solid var(--line); margin: 5px auto; }
.tool {
  height: 50px; border-radius: 9px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
  color: var(--muted);
}
.tool svg { width: 20px; height: 20px; }
.tool span { font-size: 9.5px; font-weight: 600; letter-spacing: 0.02em; }
.tool:hover { background: rgba(255, 255, 255, 0.06); color: var(--text); }
.tool.active { background: rgba(112, 200, 255, 0.15); color: #eaf7ff; box-shadow: inset 0 0 0 1px rgba(112, 200, 255, 0.4); }
.tool.small { height: 42px; }
.tool.small svg { width: 17px; height: 17px; }
.tool:disabled { opacity: 0.35; cursor: default; }

/* ---------------------------------------------------------------- caption */
#caption { position: fixed; left: 92px; top: 62px; z-index: 5; max-width: min(620px, calc(100vw - 440px)); pointer-events: none; }
#caption h1 { margin: 0; font-size: 15px; font-weight: 700; letter-spacing: 0.01em; }
#caption p {
  margin: 2px 0 0; color: var(--muted); font-size: 12px; line-height: 1.35;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
#toolHint {
  display: none; margin-top: 3px; font-size: 12px; color: #cfe9ff;
}
#toolHint kbd { font: 600 10.5px var(--mono); padding: 1px 5px; border-radius: 4px; background: rgba(255, 255, 255, 0.08); border: 1px solid var(--line-2); }
#caption.tooling p { display: none; }
#caption.tooling #toolHint { display: block; }

/* ---------------------------------------------------------------- panel */
#panel {
  position: fixed; right: 12px; top: 64px; bottom: 12px; width: 300px; z-index: 15;
  padding: 11px 13px 12px; display: flex; flex-direction: column; gap: 11px; overflow-y: auto; scrollbar-width: thin;
}
#panel::-webkit-scrollbar { width: 6px; }
#panel::-webkit-scrollbar-thumb { background: rgba(150, 170, 210, 0.2); border-radius: 3px; }
#panel h3 {
  margin: 0 0 5px; font-size: 10.5px; white-space: nowrap; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted);
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
}
#panel h3 .hint { text-transform: none; letter-spacing: 0; font-weight: 500; color: var(--dim); font-size: 10.5px; }
.key { display: flex; align-items: center; gap: 4px; text-transform: none; letter-spacing: 0; font-weight: 500; font-size: 10px; color: var(--dim); }
.key i { display: inline-block; width: 10px; height: 2px; margin-left: 4px; border-radius: 1px; }
.key .k-now { background: var(--mint); }
.key .k-prev { background: repeating-linear-gradient(90deg, #aab4cc 0 3px, transparent 3px 5px); }
.key .k-flow { background: rgba(108, 190, 255, 0.7); height: 6px; width: 5px; }

.kpis { display: flex; flex-direction: column; gap: 6px; }
.kpi-main { padding: 7px 10px 8px; border-radius: 9px; background: rgba(255, 255, 255, 0.03); border: 1px solid var(--line); }
.kpi-main label { display: block; font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; font-weight: 700; }
.kpi-main .big { display: flex; align-items: baseline; gap: 6px; }
.kpi-main .big b { font: 700 25px/1.15 var(--mono); letter-spacing: -0.01em; }
.kpi-main .big small { font: 500 13px var(--mono); color: var(--muted); }
.kpi-main .big span { margin-left: auto; font: 700 15px var(--mono); color: var(--mint); }
.kpi-main .bar { height: 5px; border-radius: 3px; background: rgba(255, 255, 255, 0.06); margin-top: 5px; overflow: hidden; }
.kpi-main .bar i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, #22b98a, var(--mint)); border-radius: 3px; transition: width 0.25s; }
.kpi-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 5px; }
.kpi-row > div { padding: 5px 6px 4px; border-radius: 8px; background: rgba(255, 255, 255, 0.03); border: 1px solid var(--line); min-width: 0; }
.kpi-row b { display: block; font: 650 16px/1.2 var(--mono); }
.kpi-row small { display: block; font-size: 9.5px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.kpi-row .risk.on { border-color: rgba(255, 61, 154, 0.55); background: rgba(255, 61, 154, 0.12); }
.kpi-row .risk.on b { color: var(--pink); }

#chart { width: 100%; height: clamp(60px, calc(100vh - 660px), 180px); display: block; }

.exit-list { display: flex; flex-direction: column; gap: 1px; }
.exit-row {
  display: grid; grid-template-columns: 18px 1fr 46px 30px 40px; align-items: center; gap: 7px;
  padding: 3px 6px; border-radius: 7px; text-align: left; width: 100%;
}
.exit-row:hover { background: rgba(255, 255, 255, 0.05); }
.exit-row .badge { width: 18px; height: 18px; border-radius: 50%; display: grid; place-items: center; font: 800 10px var(--font); color: #07110d; }
.exit-row .nm { font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.exit-row .nm em { font-style: normal; font-size: 9.5px; color: var(--amber); margin-left: 4px; }
.exit-row .meter { height: 5px; border-radius: 3px; background: rgba(255, 255, 255, 0.06); overflow: hidden; }
.exit-row .meter i { display: block; height: 100%; border-radius: 3px; }
.exit-row .ct { font: 600 12px var(--mono); text-align: right; }
.exit-row .fl { font: 500 10.5px var(--mono); color: var(--muted); text-align: right; }
.exit-row.closed .nm { color: var(--hot); text-decoration: line-through; }
.exit-row.closed .badge { background: var(--hot) !important; }
.exit-empty { color: var(--dim); font-size: 12px; padding: 4px 6px; }

.jam-list { display: flex; flex-direction: column; gap: 3px; min-height: 22px; }
.jam-row { display: grid; grid-template-columns: 20px 1fr auto; gap: 8px; align-items: center; padding: 3px 7px; border-radius: 8px; background: rgba(255, 92, 92, 0.07); border: 1px solid rgba(255, 92, 92, 0.18); }
.jam-row.cool { background: rgba(255, 159, 67, 0.06); border-color: rgba(255, 159, 67, 0.16); }
.jam-row .n { width: 20px; height: 20px; border-radius: 50%; display: grid; place-items: center; font: 800 11px var(--font); color: #140606; background: var(--hot); }
.jam-row.cool .n { background: #ff9f43; }
.jam-row .t { font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.jam-row .s { font: 500 10.5px var(--mono); color: var(--muted); text-align: right; white-space: nowrap; }
.jam-none { color: var(--dim); font-size: 12px; padding: 3px 2px; }

.controls .slider { margin-bottom: 9px; }
.slider label { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); margin-bottom: 3px; }
.slider label b { color: var(--text); font-weight: 600; }
input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; height: 18px; background: transparent; margin: 0; }
input[type=range]::-webkit-slider-runnable-track { height: 4px; border-radius: 2px; background: linear-gradient(90deg, var(--blue) var(--p, 50%), rgba(255, 255, 255, 0.1) var(--p, 50%)); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 14px; height: 14px; border-radius: 50%; background: #eef6ff; margin-top: -5px; box-shadow: 0 0 0 3px rgba(112, 200, 255, 0.25); }
input[type=range]::-moz-range-track { height: 4px; border-radius: 2px; background: rgba(255, 255, 255, 0.1); }
input[type=range]::-moz-range-progress { height: 4px; border-radius: 2px; background: var(--blue); }
input[type=range]::-moz-range-thumb { width: 14px; height: 14px; border: 0; border-radius: 50%; background: #eef6ff; }
#sU { --blue: #ffa94d; }

/* ---------------------------------------------------------------- bottom bar */
#bottombar {
  position: fixed; bottom: 12px; z-index: 15; left: calc(88px + (100vw - 412px) / 2); transform: translateX(-50%);
  display: flex; align-items: center; gap: 12px; padding: 5px 8px; white-space: nowrap;
}
.legend { display: grid; grid-template-columns: 140px; grid-template-rows: auto auto; row-gap: 2px; }
.legend .grad { height: 7px; border-radius: 4px; }
.legend .ticks { display: flex; justify-content: space-between; font-size: 9.5px; color: var(--muted); }
.legend .unit { display: none; }
.legend.off { opacity: 0.35; }
.toggles { display: flex; gap: 4px; }
.chip { height: 28px; padding: 0 10px; border-radius: 8px; border: 1px solid var(--line-2); color: var(--muted); font-size: 12px; font-weight: 600; display: flex; align-items: center; gap: 6px; }
.chip:hover { color: var(--text); }
.chip.on { color: #eaf7ff; background: rgba(112, 200, 255, 0.14); border-color: rgba(112, 200, 255, 0.4); }
.chip .dot { width: 10px; height: 10px; border-radius: 50%; }
.chip .dot.speed { background: linear-gradient(90deg, #70c8ff 0 33%, #ffd666 33% 66%, #ff4a4a 66%); }
.chip .dot.exit { background: conic-gradient(#34e3a4 0 25%, #ffbf47 0 50%, #6aa9ff 0 75%, #ff7ab8 0); }

#zoomCtl { position: fixed; right: 324px; bottom: 12px; z-index: 14; display: flex; flex-direction: column; gap: 4px; }
#zoomCtl button { width: 30px; height: 30px; border-radius: 8px; background: var(--panel); border: 1px solid var(--line-2); font-size: 16px; font-weight: 600; display: grid; place-items: center; color: var(--muted); }
#zoomCtl button:hover { color: var(--text); }
#zoomCtl svg { width: 14px; height: 14px; }

/* ---------------------------------------------------------------- overlays */
#tip {
  position: fixed; z-index: 60; pointer-events: none; max-width: 260px; padding: 6px 9px; border-radius: 7px;
  background: #121a2d; border: 1px solid var(--line-2); color: var(--text); font-size: 11.5px; line-height: 1.35;
  white-space: pre-line; box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}
#tooltip {
  position: fixed; z-index: 30; pointer-events: none; min-width: 170px; padding: 8px 10px; border-radius: 9px;
  background: rgba(10, 15, 28, 0.94); border: 1px solid var(--line-2); font-size: 11.5px; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}
#tooltip h4 { margin: 0 0 5px; font-size: 12px; font-weight: 700; }
#tooltip .row { display: flex; justify-content: space-between; gap: 14px; color: var(--muted); }
#tooltip .row b { color: var(--text); font: 600 11.5px var(--mono); }

#report {
  position: fixed; z-index: 25; top: 120px; width: 380px; left: calc(88px + (100vw - 412px) / 2); transform: translateX(-50%);
  padding: 14px 16px 14px; animation: rise 0.35s ease-out;
}
@keyframes rise { from { opacity: 0; transform: translate(-50%, -8px); } to { opacity: 1; transform: translate(-50%, 0); } }
#report .head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
#report .head small { font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mint); font-weight: 700; }
#report.stalled .head small { color: var(--hot); }
#report h2 { margin: 2px 0 8px; font-size: 21px; font-weight: 750; }
#report h2 span { font-family: var(--mono); }
#report .delta { font-size: 12px; font-weight: 600; padding: 2px 7px; border-radius: 6px; }
#report .delta.better { color: var(--mint); background: rgba(52, 227, 164, 0.12); }
#report .delta.worse { color: var(--hot); background: rgba(255, 92, 92, 0.12); }
#report .stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin-bottom: 10px; }
#report .stats div { background: rgba(255, 255, 255, 0.035); border: 1px solid var(--line); border-radius: 8px; padding: 5px 7px; }
#report .stats label { display: block; font-size: 9.5px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 700; }
#report .stats b { font: 650 14px var(--mono); }
#report h5 { margin: 6px 0 5px; font-size: 10.5px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em; }
#report ol { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 4px; }
#report li { display: grid; grid-template-columns: 20px 1fr auto; gap: 8px; align-items: center; font-size: 12px; }
#report li i { width: 18px; height: 18px; border-radius: 50%; display: grid; place-items: center; font: 800 10.5px var(--font); color: #140606; background: #ff9f43; font-style: normal; }
#report li:first-child i { background: var(--hot); }
#report li span { font: 500 11px var(--mono); color: var(--muted); }
#report .tip { margin: 10px 0 0; font-size: 12px; color: #c9d6ee; background: rgba(112, 200, 255, 0.08); border: 1px solid rgba(112, 200, 255, 0.2); padding: 7px 9px; border-radius: 8px; }
#report .actions { display: flex; gap: 6px; margin-top: 11px; }
#report .actions button { flex: 1; height: 30px; border-radius: 8px; border: 1px solid var(--line-2); font-weight: 600; font-size: 12px; }
#report .actions button.primary { background: var(--mint); color: #04140d; border-color: transparent; }
#report .actions button:hover { filter: brightness(1.12); }
#report .x { position: absolute; top: 8px; right: 10px; font-size: 18px; color: var(--muted); width: 24px; height: 24px; }

#scenarioMenu {
  position: fixed; z-index: 40; top: 56px; left: 196px; width: 560px; padding: 10px;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px;
}
.sc-card { display: grid; grid-template-columns: 96px 1fr; gap: 10px; padding: 8px; border-radius: 10px; text-align: left; border: 1px solid transparent; }
.sc-card:hover { background: rgba(255, 255, 255, 0.05); border-color: var(--line); }
.sc-card.on { border-color: rgba(112, 200, 255, 0.45); background: rgba(112, 200, 255, 0.08); }
.sc-card canvas { width: 96px; height: 60px; border-radius: 6px; background: #09101d; display: block; }
.sc-card b { display: block; font-size: 13px; margin-bottom: 2px; }
.sc-card small { display: block; font-size: 11px; color: var(--muted); line-height: 1.3; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

#help { position: fixed; inset: 0; z-index: 50; background: rgba(3, 6, 12, 0.6); display: grid; place-items: center; backdrop-filter: blur(3px); }
#help[hidden], #report[hidden], #scenarioMenu[hidden], #tooltip[hidden] { display: none; }
.help-card { position: relative; width: min(640px, calc(100vw - 40px)); max-height: calc(100vh - 60px); overflow: auto; padding: 20px 24px; background: var(--panel-solid); border: 1px solid var(--line-2); border-radius: 14px; }
.help-card h2 { margin: 0 0 10px; font-size: 18px; }
.help-card p { margin: 0 0 10px; color: #c3cee3; line-height: 1.55; }
.help-card .keys { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px 12px; margin: 14px 0; font-size: 12px; color: var(--muted); }
.help-card kbd { font: 600 10.5px var(--mono); padding: 1px 5px; border-radius: 4px; background: rgba(255, 255, 255, 0.07); border: 1px solid var(--line-2); color: var(--text); }
.help-card .fine { font-size: 12px; color: var(--muted); }
.help-card .close { position: absolute; top: 10px; right: 12px; font-size: 22px; color: var(--muted); }

#toast {
  position: fixed; z-index: 45; left: calc(88px + (100vw - 412px) / 2); bottom: 66px; transform: translate(-50%, 10px);
  padding: 7px 12px; border-radius: 9px; background: #121a2d; border: 1px solid var(--line-2); font-size: 12.5px;
  opacity: 0; pointer-events: none; transition: opacity 0.25s, transform 0.25s; white-space: nowrap;
}
#toast.show { opacity: 1; transform: translate(-50%, 0); }

.controls .slider:last-child { margin-bottom: 0; }

@media (max-height: 760px) {
  #panel { gap: 9px; padding-top: 9px; }
  .kpi-main .big b { font-size: 22px; }
  .controls .slider { margin-bottom: 3px; }
  .slider label { margin-bottom: 1px; }
}