.vm-demo {
  --vm-bg: #11110f;
  --vm-panel: #191916;
  --vm-line: #34342d;
  --vm-muted: #94948a;
  --vm-fg: #eeeee5;
  --vm-accent: #ff5a27;
  color: var(--vm-fg);
  background: var(--vm-bg);
  border: 1px solid var(--vm-line);
  padding: clamp(20px, 3.5vw, 48px);
  font-family: "Inter", "Arial", "Microsoft YaHei", sans-serif;
  text-align: left;
  box-sizing: border-box;
  color-scheme: dark;
}
.vm-demo *, .vm-demo *::before, .vm-demo *::after { box-sizing: border-box; }
.vm-demo .vm-demo__topline, .vm-demo .vm-demo__panelhead { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.vm-demo .vm-demo__eyebrow, .vm-demo .vm-demo__tag, .vm-demo .vm-demo__panelhead { font-family: "Courier New", monospace; font-size: 10px; letter-spacing: .06em; }
.vm-demo .vm-demo__eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--vm-accent); }
.vm-demo .vm-demo__eyebrow i { width: 6px; height: 6px; background: var(--vm-accent); display: block; }
.vm-demo .vm-demo__tag { color: var(--vm-muted); }
.vm-demo .vm-demo__intro { margin: 30px 0 12px; }
.vm-demo .vm-demo__intro h3 { font-size: clamp(24px, 3vw, 38px); font-weight: 500; line-height: 1.4; margin: 0 0 8px; letter-spacing: -.04em; }
.vm-demo .vm-demo__intro p { color: #b5b5aa; font-size: 13px; line-height: 1.7; margin: 0; }
.vm-demo .vm-demo__disclosure { color: var(--vm-muted); font-size: 11px; line-height: 1.7; margin: 0 0 26px; }
.vm-demo .vm-demo__grid { display: grid; grid-template-columns: 1.08fr 1fr 1fr; gap: 12px; align-items: stretch; }
.vm-demo .vm-demo__panel { background: var(--vm-panel); border: 1px solid var(--vm-line); min-width: 0; padding: 19px; }
.vm-demo .vm-demo__panelhead { min-height: 29px; color: #c5c5b9; margin-bottom: 22px; }
.vm-demo .vm-demo__presetlabel { display: flex; align-items: center; gap: 5px; color: var(--vm-muted); font-family: inherit; letter-spacing: 0; }
.vm-demo .vm-demo__presets { appearance: auto; font-size: 10px; color: var(--vm-fg); background: #242420; border: 1px solid #414138; padding: 5px 2px; max-width: 100px; border-radius: 0; }
.vm-demo .vm-demo__source { width: 100%; height: 155px; min-height: 115px; padding: 0; display: block; resize: vertical; color: #e3e3d8; background: transparent; border: none; outline: none; font-family: "Consolas", "Courier New", monospace; font-size: 12px; line-height: 1.95; tab-size: 2; border-radius: 0; }
.vm-demo .vm-demo__source:focus { box-shadow: 0 1px 0 var(--vm-accent); }
.vm-demo .vm-demo__syntax { color: var(--vm-muted); font-size: 10px; line-height: 1.8; margin: 13px 0 15px; }
.vm-demo .vm-demo__inputs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 15px; }
.vm-demo .vm-demo__inputs label { display: flex; align-items: center; gap: 10px; font-family: "Consolas", monospace; font-size: 12px; color: var(--vm-muted); }
.vm-demo .vm-demo__inputs input { background: #10100e; color: var(--vm-fg); border: 1px solid #3c3c33; border-radius: 0; padding: 10px; font: inherit; width: 100%; min-width: 0; }
.vm-demo button { cursor: pointer; border-radius: 0; font-family: inherit; transition: background .18s, color .18s, border-color .18s; touch-action: manipulation; }
.vm-demo button:focus-visible, .vm-demo select:focus-visible, .vm-demo input:focus-visible { outline: 2px solid var(--vm-accent); outline-offset: 3px; }
.vm-demo .vm-demo__compile { display: flex; width: 100%; align-items: center; justify-content: space-between; background: var(--vm-accent); border: 1px solid var(--vm-accent); color: #160c07; padding: 14px 13px; font-weight: 600; font-size: 11px; }
.vm-demo .vm-demo__compile:hover { background: #ff754a; border-color: #ff754a; }
.vm-demo .vm-demo__compile span[aria-hidden] { font-size: 18px; line-height: 12px; }
.vm-demo .vm-demo__count, .vm-demo .vm-demo__pc { color: var(--vm-muted); font-size: 10px; }
.vm-demo .vm-demo__instructions { list-style: none; padding: 0; margin: 0 0 17px; min-height: 228px; max-height: 320px; overflow: auto; scrollbar-width: thin; scrollbar-color: #4c4c40 #191916; }
.vm-demo .vm-demo__instruction { display: grid; grid-template-columns: 24px minmax(0, 1fr) auto; align-items: center; gap: 6px; padding: 7px 5px; border-left: 2px solid transparent; color: #b8b8ae; min-height: 31px; }
.vm-demo .vm-demo__instruction code { font-family: "Consolas", "Courier New", monospace; font-size: 11px; white-space: nowrap; }
.vm-demo .vm-demo__address { font-family: "Consolas", monospace; font-size: 10px; color: #73736b; }
.vm-demo .vm-demo__meaning { font-size: 9px; color: #939388; }
.vm-demo .vm-demo__instruction--active { background: #ff5a2714; color: #ff8d65; border-color: var(--vm-accent); }
.vm-demo .vm-demo__instruction--active .vm-demo__address, .vm-demo .vm-demo__instruction--active .vm-demo__meaning { color: #dc7856; }
.vm-demo .vm-demo__instruction--done { opacity: .58; }
.vm-demo .vm-demo__constants { padding-top: 13px; border-top: 1px solid var(--vm-line); display: flex; align-items: flex-start; gap: 13px; font-size: 10px; color: var(--vm-muted); }
.vm-demo .vm-demo__constants > span { white-space: nowrap; padding-top: 4px; }
.vm-demo .vm-demo__constantvalues { display: flex; flex-wrap: wrap; gap: 6px; }
.vm-demo .vm-demo__constantvalues code { font-family: "Consolas", monospace; font-size: 10px; color: #c5c5b8; border: 1px solid #414136; padding: 3px 6px; }
.vm-demo .vm-demo__stacklabel { display: flex; align-items: center; justify-content: space-between; color: var(--vm-muted); font-size: 10px; }
.vm-demo .vm-demo__stacklabel span + span { font-size: 9px; color: #77776c; }
.vm-demo .vm-demo__stack { min-height: 80px; padding: 16px 0; display: flex; align-items: flex-start; flex-wrap: wrap; gap: 6px; }
.vm-demo .vm-demo__stackvalue { border: 1px solid #5e5e4d; background: #28281f; color: #e0e0d2; padding: 8px 10px; font: 13px "Consolas", monospace; overflow-wrap: anywhere; max-width: 100%; }
.vm-demo .vm-demo__empty { color: #717167; font: 11px "Consolas", "Microsoft YaHei", monospace; padding-top: 4px; }
.vm-demo .vm-demo__resultlabel { font: 9px "Courier New", monospace; letter-spacing: .08em; color: var(--vm-muted); border-top: 1px solid var(--vm-line); padding-top: 17px; }
.vm-demo .vm-demo__result { color: #737368; display: block; font-family: "Consolas", "Courier New", monospace; font-size: clamp(34px, 3.3vw, 50px); line-height: 1.5; min-height: 88px; padding: 8px 0 12px; overflow-wrap: anywhere; }
.vm-demo .vm-demo__result--ready { color: var(--vm-accent); }
.vm-demo .vm-demo__controls { display: grid; grid-template-columns: 1.1fr 1fr 35px; gap: 6px; }
.vm-demo .vm-demo__controls button { background: transparent; border: 1px solid #505043; color: #d5d5c9; padding: 11px 6px; font-size: 10px; white-space: nowrap; }
.vm-demo .vm-demo__controls button:hover:enabled { border-color: var(--vm-accent); color: var(--vm-accent); }
.vm-demo .vm-demo__controls button:disabled { opacity: .3; cursor: default; }
.vm-demo .vm-demo__status { color: #aaa99a; font-size: 10px; line-height: 1.8; min-height: 37px; margin: 13px 0 0; overflow-wrap: anywhere; }
.vm-demo .vm-demo__status--error { color: #ff976f; }
.vm-demo .vm-demo__sr { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
@media (max-width: 1080px) {
  .vm-demo .vm-demo__grid { grid-template-columns: 1fr 1fr; }
  .vm-demo .vm-demo__editor { grid-column: 1 / -1; }
  .vm-demo .vm-demo__source { height: 120px; }
  .vm-demo .vm-demo__inputs { max-width: 330px; }
}
@media (max-width: 640px) {
  .vm-demo { padding: 22px 15px; }
  .vm-demo .vm-demo__tag { display: none; }
  .vm-demo .vm-demo__intro { margin-top: 24px; }
  .vm-demo .vm-demo__grid { grid-template-columns: 1fr; }
  .vm-demo .vm-demo__editor { grid-column: auto; }
  .vm-demo .vm-demo__panel { padding: 16px; }
  .vm-demo .vm-demo__instructions { min-height: 0; max-height: 260px; }
  .vm-demo .vm-demo__meaning { font-size: 10px; }
  .vm-demo .vm-demo__stack { min-height: 65px; }
  .vm-demo .vm-demo__result { min-height: 77px; }
  .vm-demo .vm-demo__controls button { min-height: 42px; font-size: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  .vm-demo button { transition: none; }
}