/* VS Code-like code windows */
.code-window {
  --code-bg: #1e1e1e;
  --code-head: #252526;
  --code-line: #333333;
  --code-fg: #d4d4d4;
  --code-muted: #858585;
  margin: 20px 0 26px;
  overflow: hidden;
  color: var(--code-fg);
  background: var(--code-bg);
  border: 1px solid #333333;
  border-radius: 4px;
  box-shadow: 0 16px 34px -28px rgba(18, 20, 16, 0.7);
  font-family: var(--mono, "Cascadia Code", "Consolas", monospace);
  font-size: 13.2px;
  line-height: 1.7;
  tab-size: 4;
}

/* Reading guide above the main code window */
.code-brief {
  max-width: 820px;
  margin: 18px 0 10px;
  padding: 2px 0 2px 14px;
  color: var(--ink-soft, #62645a);
  border-left: 2px solid rgba(198, 94, 56, 0.5);
  font-size: 13px;
  line-height: 1.8;
}

.code-brief-purpose {
  margin: 0 0 5px;
  color: var(--ink, #1c1f18);
}

.code-brief-purpose span,
.code-brief-logic > span {
  display: inline-block;
  margin-right: 7px;
  color: var(--accent-deep, #a84a28);
  font-family: var(--mono, "Cascadia Code", "Consolas", monospace);
  font-size: 10.5px;
  letter-spacing: 0.05em;
  vertical-align: 1px;
}

.code-brief-logic {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0 7px;
  align-items: start;
}

.code-brief-logic ol {
  margin: 0;
  padding-left: 1.25em;
}

.code-brief-logic li {
  margin: 1px 0;
}

.code-brief-note {
  margin: 5px 0 0;
  color: var(--ink-faint, #86887c);
  font-size: 12px;
  line-height: 1.7;
}

@media (max-width: 680px) {
  .code-brief {
    margin-top: 15px;
    padding-left: 10px;
    font-size: 12px;
    line-height: 1.75;
  }

  .code-brief-note {
    font-size: 11px;
  }
}

@media print {
  .code-brief {
    break-inside: avoid;
  }
}

.code-window-head {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 32px;
  padding: 7px 10px 7px 12px;
  background: var(--code-head);
  border-bottom: 1px solid var(--code-line);
  user-select: none;
}

.code-dots {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 5px;
  margin-right: 3px;
}

.code-dots i {
  display: block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #5b5b5b;
}

.code-dots i:nth-child(1) { background: #c65e38; }
.code-dots i:nth-child(2) { background: #b99a5c; }
.code-dots i:nth-child(3) { background: #7f9874; }

.code-lang {
  color: #d7d7d7;
  font-family: var(--mono, monospace);
  font-size: 10.5px;
  letter-spacing: 0.08em;
}

.code-meta {
  min-width: 0;
  overflow: hidden;
  color: #a3a3a3;
  font-family: var(--mono, monospace);
  font-size: 10.5px;
  letter-spacing: 0.02em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.code-copy {
  flex: 0 0 auto;
  margin-left: auto;
  padding: 4px 9px;
  color: #c7c7c7;
  background: transparent;
  border: 1px solid #3b3b3b;
  border-radius: 3px;
  cursor: pointer;
  font-family: var(--mono, monospace);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  opacity: 0.6;
  transition: color 0.18s ease, border-color 0.18s ease, opacity 0.18s ease;
}

.code-window:hover .code-copy,
.code-copy:focus-visible {
  opacity: 1;
}

.code-copy:hover {
  color: #ffffff;
  border-color: #6b6b6b;
}

.code-copy.is-copied {
  color: #89d185;
  border-color: #426b3d;
  opacity: 1;
}

.code-copy.is-error {
  color: #f48771;
  border-color: #6d3c35;
  opacity: 1;
}

.code-body {
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-color: #454545 transparent;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.code-body::-webkit-scrollbar { height: 8px; }
.code-body::-webkit-scrollbar-track { background: transparent; }
.code-body::-webkit-scrollbar-thumb {
  background: #454545;
  border: 2px solid var(--code-bg);
  border-radius: 999px;
}

.code-lines {
  min-width: max-content;
  padding: 10px 0 12px;
}

.code-line {
  display: flex;
  min-height: 1.65em;
}

.code-ln {
  position: sticky;
  left: 0;
  z-index: 1;
  flex: 0 0 3.4em;
  padding: 0 10px 0 12px;
  color: #9d9d9d;
  background: var(--code-bg);
  border-right: 1px solid rgba(255, 255, 255, 0.055);
  text-align: right;
  user-select: none;
  font-variant-numeric: tabular-nums;
}

.code-lc {
  display: block;
  flex: 0 0 auto;
  padding-right: 18px;
  white-space: pre;
}

/* Collapsible functions */
.code-fold-head { cursor: pointer; }
.code-fold-head.is-active .code-lc { color: var(--code-fg); }

.code-fold-toggle {
  flex: 0 0 1.6em;
  padding: 0;
  color: #9d9d9d;
  background: transparent;
  border: 0;
  cursor: pointer;
  font-family: inherit;
  font-size: 10px;
  line-height: 1;
  text-align: center;
  user-select: none;
}

.code-fold-toggle:hover { color: #ffffff; }
.code-fold-toggle:focus-visible {
  outline: 1px solid #4b4b4b;
  outline-offset: -1px;
}

.code-fold-toggle .tri {
  display: inline-block;
  transition: transform 0.15s ease;
}

.code-fold.is-collapsed .code-fold-toggle .tri { transform: rotate(-90deg); }
.code-fold.is-collapsed .code-fold-body { display: none; }
.code-fold.is-collapsed .code-fold-head .code-lc { color: var(--code-muted); }
.code-fold.is-collapsed .code-fold-head .code-lc::after {
  content: " ⋯";
  color: var(--code-muted);
}

.code-window .tok-k { color: #c586c0; }
.code-window .tok-t { color: #569cd6; }
.code-window .tok-y { color: #4ec9b0; }
.code-window .tok-f { color: #dcdcaa; }
.code-window .tok-v { color: #9cdcfe; }
.code-window .tok-m { color: #4fc1ff; }
.code-window .tok-s { color: #ce9178; }
.code-window .tok-n { color: #b5cea8; }
.code-window .tok-c { color: #6a9955; }
.code-window .tok-p { color: #c586c0; }

@media (hover: none) {
  .code-copy { opacity: 0.78; }
}

@media (max-width: 680px) {
  .code-window {
    margin: 16px 0 21px;
    font-size: 12px;
    line-height: 1.75;
  }

  .code-window-head {
    min-height: 30px;
    gap: 7px;
    padding: 6px 8px 6px 10px;
  }

  .code-meta { display: none; }
  .code-copy { opacity: 0.82; }
  .code-lines { padding: 8px 0 10px; }
  .code-ln { flex-basis: 2.9em; padding: 0 7px 0 9px; }
  .code-lc { padding-right: 14px; }
}

@media print {
  .code-window {
    color: #111;
    background: #f7f7f7;
    border-color: #bbbbbb;
    box-shadow: none;
    break-inside: auto;
  }

  .code-window-head {
    background: #eeeeee;
    border-color: #cccccc;
  }

  .code-dots,
  .code-copy,
  .code-meta { display: none; }

  .code-body { overflow: visible; }
  .code-lines { min-width: 0; padding: 8px 0; }

  .code-line { break-inside: avoid; }

  .code-ln {
    position: static;
    color: #777777;
    background: transparent;
  }

  .code-lc {
    color: #111111;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
  }

  .code-window .tok-k,
  .code-window .tok-t,
  .code-window .tok-y,
  .code-window .tok-f,
  .code-window .tok-v,
  .code-window .tok-m,
  .code-window .tok-s,
  .code-window .tok-n,
  .code-window .tok-c,
  .code-window .tok-p {
    color: #111111 !important;
  }
}