:root {
  color-scheme: dark;
  --bg: #151719;
  --panel: #24282b;
  --panel-2: #1b1f22;
  --line: #3c4246;
  --text: #e8ecef;
  --muted: #9ba6ad;
  --green: #34d058;
  --amber: #f2b84b;
  --red: #f25f5c;
  --cyan: #39b7d7;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 1040px;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  letter-spacing: 0;
}

button,
textarea,
input {
  font: inherit;
}

.cnc-shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: 54px 1fr;
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  background: #101214;
  border-bottom: 1px solid var(--line);
}

.brand {
  font-weight: 700;
  font-size: 22px;
  color: var(--cyan);
}

.status-strip {
  display: flex;
  gap: 10px;
}

.status {
  min-width: 92px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: #202428;
  color: var(--green);
  font-size: 13px;
  font-weight: 700;
}

.status.alarm {
  color: var(--red);
}

.machine-panel {
  display: grid;
  grid-template-columns: 290px minmax(480px, 1fr) 390px;
  min-height: 0;
}

.left-panel,
.right-panel,
.center-panel {
  min-height: 0;
  border-right: 1px solid var(--line);
  background: var(--panel);
}

.center-panel {
  display: grid;
  grid-template-rows: 1fr 58px;
  background: #111416;
}

.right-panel {
  border-right: 0;
  display: grid;
  grid-template-rows: 42px 1fr 150px;
}

.dro {
  padding: 16px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--line);
}

.dro-row {
  display: grid;
  grid-template-columns: 34px 1fr;
  align-items: baseline;
  height: 48px;
  border-bottom: 1px solid #30363a;
}

.dro-row:last-child {
  border-bottom: 0;
}

.dro-row span {
  color: var(--amber);
  font-size: 22px;
  font-weight: 700;
}

.dro-row output {
  text-align: right;
  font-family: "Courier New", monospace;
  font-size: 28px;
  color: #f5f7f8;
}

.meters {
  display: grid;
  gap: 18px;
  padding: 18px 16px;
  border-bottom: 1px solid var(--line);
}

.meters label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.meters input {
  width: 100%;
}

.keypad {
  padding: 16px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

button {
  height: 44px;
  border: 1px solid #565f65;
  border-radius: 4px;
  background: #30363a;
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
}

button:hover {
  background: #3a4248;
}

button.cycle {
  background: #205f37;
  border-color: #2d8a4e;
}

button.stop {
  background: #7a2726;
  border-color: #a83a38;
}

#toolpathCanvas {
  width: 100%;
  height: 100%;
  display: block;
  background: #090b0c;
}

.soft-keys {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
  padding: 8px;
  border-top: 1px solid var(--line);
  background: #1b1f22;
}

.program-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 0 12px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--amber);
  font-size: 13px;
  font-weight: 700;
}

.backend-select {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
}

.backend-select select {
  height: 26px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #101214;
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
}

textarea {
  width: 100%;
  height: 100%;
  resize: none;
  border: 0;
  outline: none;
  padding: 14px;
  background: #121517;
  color: #e5f5e9;
  font-family: "Courier New", monospace;
  font-size: 15px;
  line-height: 1.5;
}

.alarm-list {
  overflow: auto;
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  background: #1a1d20;
  color: var(--muted);
  font-family: "Courier New", monospace;
  font-size: 13px;
}

.alarm-line {
  padding: 4px 0;
  border-bottom: 1px solid #2a3034;
}

.alarm-line.error {
  color: var(--red);
}

@media (max-width: 1180px) {
  body {
    min-width: 0;
  }

  .machine-panel {
    grid-template-columns: 260px 1fr;
  }

  .right-panel {
    grid-column: 1 / -1;
    min-height: 360px;
    border-top: 1px solid var(--line);
  }
}