:root {
  color-scheme: dark;
  --bg: #07100f;
  --ink: #f4f0df;
  --muted: #a9b3a7;
  --quiet: #6f7c74;
  --panel: #111b1b;
  --panel-2: #172423;
  --panel-3: #1e2e2a;
  --line: rgba(244, 240, 223, 0.15);
  --line-strong: rgba(244, 240, 223, 0.28);
  --fire: #ff6538;
  --ember: #ffb64d;
  --risk: #f3d35b;
  --cyan: #52e6d0;
  --green: #7fb86a;
  --blue: #7eb7ff;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  background:
    linear-gradient(115deg, rgba(82, 230, 208, 0.07), transparent 28%),
    linear-gradient(180deg, #0a1514 0%, #050908 100%);
  color: var(--ink);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  letter-spacing: 0;
}

button,
input,
select {
  font: inherit;
}

button,
a {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(244, 240, 223, 0.07);
  color: var(--ink);
  cursor: pointer;
  font-size: 13px;
  font-weight: 720;
  line-height: 1;
  padding: 0 14px;
  text-decoration: none;
}

button:hover,
a:hover {
  border-color: rgba(243, 211, 91, 0.48);
  background: rgba(243, 211, 91, 0.14);
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.primary-action {
  border-color: rgba(255, 101, 56, 0.55);
  background: linear-gradient(180deg, rgba(255, 101, 56, 0.32), rgba(255, 101, 56, 0.14));
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  border: 0;
  margin: -1px;
  white-space: nowrap;
}

.app-shell {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 12px;
  height: 100vh;
  padding: 12px;
}

.command-bar,
.simulation-panel,
.control-rail {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(17, 27, 27, 0.84);
  box-shadow: var(--shadow);
}

.command-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 12px;
}

.brand {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border: 1px solid rgba(82, 230, 208, 0.55);
  border-radius: 8px;
  background:
    linear-gradient(90deg, transparent 45%, rgba(82, 230, 208, 0.9) 45% 55%, transparent 55%),
    linear-gradient(180deg, rgba(127, 184, 106, 0.9), rgba(255, 101, 56, 0.95));
  box-shadow: inset 0 0 0 5px rgba(7, 16, 15, 0.62);
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(22px, 2vw, 32px);
  font-weight: 820;
  line-height: 1;
}

.brand p,
.section-head p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.35;
  margin-top: 4px;
}

.command-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.workbench {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 12px;
  min-height: 0;
}

.simulation-panel {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto auto;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1px;
  border-bottom: 1px solid var(--line);
  background: var(--line);
}

.metric {
  min-width: 0;
  background: rgba(15, 24, 24, 0.94);
  padding: 10px 12px;
}

.metric span {
  display: block;
  color: var(--quiet);
  font-size: 11px;
  font-weight: 760;
  letter-spacing: 0.08em;
  line-height: 1;
  text-transform: uppercase;
}

.metric strong {
  display: block;
  margin-top: 6px;
  color: var(--ink);
  font-size: clamp(20px, 2.2vw, 30px);
  font-variant-numeric: tabular-nums;
  font-weight: 820;
  line-height: 0.95;
}

.metric-fire strong {
  color: var(--fire);
}

.metric-risk strong {
  color: var(--risk);
}

.view-tabs,
.tool-grid {
  border: 0;
  margin: 0;
  padding: 0;
}

.view-tabs {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  padding: 12px;
  border-bottom: 1px solid var(--line);
}

.view-tabs label,
.tool-grid label {
  position: relative;
}

.view-tabs input,
.tool-grid input {
  position: absolute;
  opacity: 0;
}

.view-tabs span {
  display: flex;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(244, 240, 223, 0.04);
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 760;
}

.view-tabs input:checked + span,
.tool-grid input:checked + span {
  border-color: rgba(82, 230, 208, 0.58);
  background: rgba(82, 230, 208, 0.13);
  color: var(--ink);
}

.view-tabs input:focus-visible + span,
.tool-grid input:focus-visible + span,
.switch input:focus-visible + span {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.field-wrap {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 0;
  padding: 12px;
}

#field {
  display: block;
  max-width: 100%;
  max-height: 100%;
  min-height: 0;
  border: 1px solid rgba(244, 240, 223, 0.18);
  border-radius: 8px;
  background: #050807;
  box-shadow:
    inset 0 0 0 1px rgba(0, 0, 0, 0.34),
    inset 0 0 70px rgba(0, 0, 0, 0.46);
  touch-action: none;
}

.legend-strip,
.wind-readout {
  position: absolute;
  display: flex;
  align-items: center;
  border: 1px solid rgba(244, 240, 223, 0.14);
  border-radius: 8px;
  background: rgba(5, 8, 7, 0.76);
}

.legend-strip {
  left: 26px;
  bottom: 26px;
  gap: 8px;
  padding: 8px;
}

.legend-strip span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.legend-strip span::before {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  content: "";
}

.legend-fuel::before {
  background: var(--green);
}

.legend-fire::before {
  background: var(--fire);
}

.legend-risk::before {
  background: var(--risk);
}

.legend-line::before {
  background: var(--cyan);
}

.wind-readout {
  top: 26px;
  right: 26px;
  flex-direction: column;
  min-width: 82px;
  padding: 8px 10px;
  text-align: center;
}

.wind-readout span {
  color: var(--quiet);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.wind-readout strong {
  margin-top: 2px;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.channel-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  padding: 0 12px 10px;
}

.channel-strip figure {
  min-width: 0;
  margin: 0;
}

.channel-strip canvas {
  display: block;
  width: 100%;
  height: 54px;
  border: 1px solid rgba(244, 240, 223, 0.14);
  border-radius: 8px;
  background: #050807;
}

.channel-strip figcaption {
  margin-top: 6px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 760;
  text-align: center;
  text-transform: uppercase;
}

.local-loop {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  background: var(--line);
  list-style: none;
}

.local-loop li {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
  background: rgba(15, 24, 24, 0.94);
  color: var(--muted);
  font-size: 12px;
  font-weight: 740;
  line-height: 1.2;
  padding: 10px 11px;
}

.local-loop span {
  display: inline-flex;
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(82, 230, 208, 0.34);
  border-radius: 999px;
  color: var(--cyan);
  font-size: 11px;
}

.control-rail {
  min-height: 0;
  overflow: auto;
}

.rail-section {
  padding: 15px;
  border-bottom: 1px solid var(--line);
}

.rail-section:last-child {
  border-bottom: 0;
}

.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

h2 {
  color: var(--ink);
  font-size: 13px;
  font-weight: 820;
  letter-spacing: 0.09em;
  line-height: 1;
  text-transform: uppercase;
}

output {
  color: var(--ink);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  font-weight: 800;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 14px;
}

.tool-grid span {
  display: grid;
  gap: 4px;
  min-height: 62px;
  align-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(244, 240, 223, 0.04);
  cursor: pointer;
  padding: 10px;
}

.tool-grid b {
  color: var(--ink);
  font-size: 13px;
  line-height: 1;
}

.tool-grid small {
  color: var(--muted);
  font-size: 12px;
  line-height: 1;
}

.control-row {
  display: grid;
  grid-template-columns: minmax(100px, 1fr) auto;
  align-items: center;
  gap: 8px 12px;
  margin-top: 13px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 720;
}

.control-row input[type="range"] {
  grid-column: 1 / -1;
  width: 100%;
}

.network-card {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 12px;
  align-items: center;
  border: 1px solid rgba(82, 230, 208, 0.2);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(82, 230, 208, 0.08), transparent 56%),
    rgba(244, 240, 223, 0.04);
  margin-bottom: 14px;
  padding: 12px;
}

.kernel-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}

.kernel-grid span {
  aspect-ratio: 1;
  border: 1px solid rgba(244, 240, 223, 0.15);
  border-radius: 4px;
  background: rgba(127, 184, 106, 0.24);
}

.kernel-grid span:nth-child(5) {
  border-color: rgba(82, 230, 208, 0.72);
  background: rgba(82, 230, 208, 0.32);
  box-shadow: 0 0 18px rgba(82, 230, 208, 0.25);
}

.network-core {
  position: relative;
  display: flex;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.network-core::before,
.network-core::after {
  position: absolute;
  top: 50%;
  height: 1px;
  background: rgba(82, 230, 208, 0.45);
  content: "";
}

.network-core::before {
  left: -2px;
  width: 24px;
}

.network-core::after {
  right: -2px;
  width: 34px;
}

.network-core span {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--cyan);
  box-shadow: 0 0 16px rgba(82, 230, 208, 0.38);
}

.network-outs {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 6px;
}

.network-outs span {
  min-width: 0;
  border: 1px solid rgba(244, 240, 223, 0.12);
  border-radius: 6px;
  background: rgba(5, 8, 7, 0.46);
  color: var(--muted);
  font-size: 11px;
  font-weight: 760;
  line-height: 1;
  padding: 7px 6px;
  text-align: center;
}

input[type="range"] {
  accent-color: var(--risk);
}

.switch {
  position: relative;
  display: inline-flex;
  width: 50px;
  height: 28px;
  flex: 0 0 auto;
}

.switch input {
  position: absolute;
  opacity: 0;
}

.switch span {
  position: absolute;
  inset: 0;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(244, 240, 223, 0.08);
}

.switch span::after {
  position: absolute;
  top: 4px;
  left: 4px;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: var(--muted);
  content: "";
  transition: transform 160ms ease, background 160ms ease;
}

.switch input:checked + span {
  border-color: rgba(82, 230, 208, 0.62);
  background: rgba(82, 230, 208, 0.14);
}

.switch input:checked + span::after {
  transform: translateX(22px);
  background: var(--cyan);
}

@media (prefers-reduced-motion: reduce) {
  .switch span::after {
    transition: none;
  }
}

.cell-readout {
  display: grid;
  gap: 8px;
}

.empty-readout {
  border: 1px dashed rgba(244, 240, 223, 0.2);
  border-radius: 8px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
  padding: 12px;
}

.cell-stat {
  display: grid;
  grid-template-columns: minmax(70px, 1fr) auto;
  gap: 6px 10px;
  align-items: center;
  color: var(--muted);
  font-size: 12px;
}

.cell-stat strong {
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.cell-stat i {
  grid-column: 1 / -1;
  height: 6px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(244, 240, 223, 0.1);
}

.cell-stat i::before {
  display: block;
  width: calc(var(--level, 0) * 100%);
  height: 100%;
  border-radius: inherit;
  background: var(--bar, var(--cyan));
  content: "";
}

@media (max-width: 1120px) {
  body {
    overflow: auto;
  }

  .app-shell {
    height: auto;
    min-height: 100vh;
  }

  .workbench {
    grid-template-columns: 1fr;
  }

  .simulation-panel {
    min-height: 760px;
  }

  .control-rail {
    overflow: visible;
  }
}

@media (max-width: 720px) {
  .app-shell {
    gap: 10px;
    padding: 10px;
  }

  .command-bar {
    align-items: flex-start;
    flex-direction: column;
  }

  .command-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .metric-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .view-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .view-tabs label:first-of-type {
    grid-column: 1 / -1;
  }

  .simulation-panel {
    min-height: auto;
  }

  .field-wrap {
    aspect-ratio: var(--grid-ratio, 116 / 76);
    min-height: 280px;
    padding: 10px;
  }

  .legend-strip {
    left: 18px;
    right: 42px;
    bottom: 18px;
    flex-wrap: wrap;
    gap: 7px 12px;
    justify-content: flex-start;
  }

  .wind-readout {
    top: 18px;
    right: 86px;
    min-width: 78px;
    padding: 7px 8px;
  }

  .channel-strip {
    grid-template-columns: 1fr;
    padding: 0 10px 10px;
  }

  .channel-strip canvas {
    height: auto;
    aspect-ratio: var(--grid-ratio, 116 / 76);
  }

  .local-loop {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 420px) {
  .brand {
    align-items: flex-start;
  }

  .command-actions a,
  .command-actions button {
    flex: 1 1 45%;
  }

  .metric {
    padding: 10px;
  }

  .tool-grid {
    grid-template-columns: 1fr;
  }
}