/* Minimal “AI Dungeon-ish” vibes: clean cards, subtle borders, mono editor */
:root{
  --bg: #0f1115;
  --panel: #151923;
  --panel2: #10131a;
  --text: #e8eaf0;
  --muted: #a9b0c3;
  --border: #2a3142;
  --accent: #7aa2ff;
  --bad: #ff6b6b;
  --warn: #ffd166;
  --good: #55d6be;
  --frame: #202636;
  --frame-accent: #3a4466;
  --ink-dim: #8f97ad;
}

*{ box-sizing: border-box; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  background: var(--bg);
  color: var(--text);
}

.mono{ font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace; }
.topbar{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 18px;
  border-bottom:1px solid var(--border);
  background: linear-gradient(180deg, #111421, #0f1115);
  position: sticky; top:0; z-index: 10;
}
.brand{ display:flex; gap:12px; align-items:center;}
.logo{
  width:34px; height:34px; display:grid; place-items:center;
  border:1px solid var(--border); border-radius:10px;
  background: #121725; color: var(--accent); font-weight:700;
}
.title{ font-weight:700; }
.subtitle{ color: var(--muted); font-size: 12px; margin-top:2px; }

.actions{ display:flex; gap:10px; align-items:center; }
.btn {
  cursor: pointer;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 10px 20px;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border: none;
  background: linear-gradient(135deg, var(--accent), #4a72ff);
  color: white;
  text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.btn:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(122, 162, 255, 0.3);
}

.btn.ghost{
  background: transparent;
  border: 1px solid var(--frame-accent);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.02);
}
.btn:active{ transform: translateY(1px); }
.btn input{ display:none; }

.layout{
  display:grid;
  grid-template-columns: 360px 1fr;
  gap: 14px;
  padding: 14px;
  max-width: 1400px;
  margin: 0 auto;
}

/* Desktop layout refinement */
@media (min-width: 1100px){
  .layout{
    grid-template-columns: 420px 1fr;
    grid-template-areas:
      "steps editor"
      "examples editor";
  }

  .panel-steps{
    grid-area: steps;
  }

  .panel-examples{
    grid-area: examples;
  }

  .panel-editor{
    grid-area: editor;
    align-self: start;
    position: sticky;
    top: 84px; /* below topbar */
    max-height: calc(100vh - 110px);
    overflow: auto;
  }
}

.panel {
  background: rgba(21, 25, 35, 0.7);
  backdrop-filter: blur(12px); /* Glass effect */
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-top: 1px solid rgba(122, 162, 255, 0.3); /* Top highlight */
  border-radius: 16px;
  padding: 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.panel:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.panel h2{
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.exampleDescription{
  margin-top: 8px;
  font-size: 12px;
  line-height: 1.4;
  color: var(--ink-dim);
}

.stepList li {
  list-style: none;
  position: relative;
  padding-left: 40px;
}

.stepList li::before {
  content: counter(step-counter);
  counter-increment: step-counter;
  position: absolute;
  left: 0; top: 0;
  width: 28px; height: 28px;
  background: var(--frame-accent);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: bold;
  color: var(--accent);
}
.stepTitle{ font-weight: 650; margin-bottom: 6px; }
.stepBody{ margin: 0 0 14px 0; color: var(--muted); font-size: 13px; }
.step-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.step-number {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--frame-accent);
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
}
.step-content {
  flex: 1 1 auto;
}

.step-item.completed .step-number {
  background: var(--good);
  color: #0b1f1a;
}
.step-item.completed .btn.small {
  background: var(--good);
}

.step-item.disabled {
  opacity: 0.45;
}

.block{
  border:1px solid var(--border);
  background: var(--panel2);
  border-radius: 12px;
  padding: 10px;
  color: var(--text);
  margin: 8px 0;
}
.pre{
  border:1px solid var(--border);
  background: var(--panel2);
  border-radius: 12px;
  padding: 10px;
  overflow:auto;
  max-height: 260px;
  white-space: pre-wrap;
}
.hint{ color: var(--muted); font-size: 12px; margin-top:8px; }

.formRow{
  display:grid;
  grid-template-columns: 90px 1fr;
  gap: 10px;
  align-items:center;
  margin-bottom: 10px;
}
.lbl{ color: var(--muted); font-size: 13px; }
.inp{
  background: var(--panel2);
  border:1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  color: var(--text);
  outline: none;
}

.split{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 10px;
}
.boxTitle{ color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.ta{
  width:100%;
  min-height: 190px;
  padding: 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  outline: none;
  resize: vertical;
  line-height: 1.35;
}
/* Notes de-emphasis: keep focus on Entry until needed */
#notesText.is-muted{
  background: rgba(16, 19, 26, 0.55);
  color: rgba(232, 234, 240, 0.78);
  border-color: rgba(42, 49, 66, 0.75);
}
#notesText.is-muted:focus{
  background: var(--panel2);
  color: var(--text);
  border-color: var(--border);
}
.block,
.pre,
.preview{
  background-image:
    linear-gradient(
      rgba(255,255,255,0.03) 1px,
      transparent 1px
    );
  background-size: 100% 1.4em;
  /* Preserve DSL formatting */
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--mono);
}

.btn.small{
  padding: 6px 10px;
  border-radius: 10px;
  font-size: 12px;
  line-height: 1;
}

.boxHeader{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 10px;
  margin-bottom: 8px;
}

/* When collapsed, hide preview + problems without affecting layout elsewhere */
.previewWrap.is-collapsed{
  display:none;
}

.problems{ margin-top: 10px; }
.problemsTitle{ color: var(--muted); font-size: 12px; margin-bottom: 6px; }
.problemList{ margin:0; padding-left: 16px; color: var(--muted); font-size: 12px; }
.problemList li{ margin: 4px 0; cursor:pointer; }
.problemList li.bad{ color: var(--bad); }
.problemList li.warn{ color: var(--warn); }

.footerRow{
  display:flex; justify-content:space-between; align-items:center;
  margin-top: 12px;
  gap: 10px;
}
.bottombar{
  border-top:1px solid var(--border);
  padding: 12px 18px;
  color: var(--muted);
  text-align:center;
}

.tok-key{ color: #a0c4ff; }
.tok-colon{ color: var(--muted); }
.tok-int{ color: #bdb2ff; }
.tok-slash{ color: #ffc6ff; }
.tok-percent{ color: #caffbf; }
.tok-list{ color: #ffd6a5; }
.tok-bag{ color: #fdffb6; }
.tok-str{ color: #9bf6ff; }
.tok-rule{ color: #ffadad; }
.tok-err{ background: rgba(255,107,107,.18); border-bottom: 1px dotted var(--bad); }

@media (max-width: 1000px){
  .layout{ grid-template-columns: 1fr; }
  .split{ grid-template-columns: 1fr; }
}

/* Preview line numbers */
.preview-line {
  display: grid;
  grid-template-columns: 3em 1fr;
  gap: 10px;
  align-items: start;
}

.preview-lineno {
  text-align: right;
  padding-right: 3px;
  color: var(--ink-dim);
  user-select: none;
  opacity: 0.6;
}

.preview-code {
  white-space: pre-wrap;
  word-break: break-word;
}