:root {
  --bg: #1d2b8f;
  --fg: #a8b7ff;
  --fg-bright: #d7deff;
  --panel: #122070;
  --accent: #ffffff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Courier New", Courier, monospace;
  background: radial-gradient(circle at 20% 20%, #2b38a1, #0d1657 70%);
  color: var(--fg);
}

body {
  display: grid;
  place-items: center;
  padding: 1rem;
}

.screen {
  width: min(920px, 100%);
  background: var(--bg);
  border: 4px solid #9fb0ff;
  box-shadow: 0 0 0 3px #0b124e, 0 18px 40px rgba(0, 0, 0, 0.45);
  padding: 1rem;
}

.screen .sc-breadcrumbs {
  --crumb-bg: rgba(8, 18, 78, 0.7);
  --crumb-border: rgba(135, 152, 242, 0.9);
}

h1 {
  margin: 0;
  font-size: clamp(1.15rem, 3vw, 1.6rem);
  color: var(--fg-bright);
}

header p {
  margin: 0.4rem 0 1rem;
}

.scene-panel {
  border: 2px solid #8798f2;
  background: #0f1e68;
  margin-bottom: 0.8rem;
  padding: 0.45rem;
}

.scene-caption {
  margin: 0 0 0.45rem;
  color: #d7deff;
  font-size: 0.9rem;
}

#sceneCanvas {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  border: 2px solid #6578dd;
  background: #1d2b8f;
  display: block;
  image-rendering: pixelated;
}

#output {
  border: 2px solid #8798f2;
  background: var(--panel);
  padding: 0.8rem;
  min-height: 360px;
  max-height: 56vh;
  overflow: auto;
  line-height: 1.4;
  white-space: pre-wrap;
}

.save-panel {
  margin-top: 0.8rem;
  border: 2px solid #8798f2;
  background: #0f1e68;
  padding: 0.55rem;
  display: grid;
  grid-template-columns: auto minmax(110px, 1fr) auto auto auto auto;
  gap: 0.4rem;
  align-items: center;
}

.save-panel label {
  font-size: 0.85rem;
}

.save-panel select {
  font: inherit;
  border-radius: 0;
  border: 2px solid #a2b2ff;
  background: #08124e;
  color: var(--accent);
  padding: 0.38rem;
}

.save-panel button {
  margin: 0;
}

.save-status {
  grid-column: 1 / -1;
  margin: 0.1rem 0 0;
  font-size: 0.82rem;
  color: #d7deff;
}

#commandForm {
  margin-top: 0.9rem;
}

label {
  display: block;
  margin-bottom: 0.3rem;
}

.input-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.4rem;
  align-items: center;
}

input,
button {
  font: inherit;
  border-radius: 0;
  border: 2px solid #a2b2ff;
}

input {
  width: 100%;
  background: #08124e;
  color: var(--accent);
  padding: 0.45rem;
}

button {
  background: #d7deff;
  color: #1d2b8f;
  font-weight: 700;
  padding: 0.45rem 0.7rem;
}

.help {
  margin-top: 0.8rem;
  font-size: 0.93rem;
}

a {
  color: #ffffff;
}

.line-system {
  color: #f4f7ff;
}

.line-error {
  color: #ffd4d4;
}

@media (max-width: 720px) {
  #output {
    min-height: 300px;
    max-height: 52vh;
  }

  .input-row {
    grid-template-columns: auto 1fr;
  }

  .input-row button {
    grid-column: 1 / -1;
  }

  .save-panel {
    grid-template-columns: 1fr 1fr;
  }

  .save-panel label,
  .save-panel select {
    grid-column: 1 / -1;
  }
}