/* --- Playground --- */
.playground {
  margin: 2rem 0 0;
}

.playground h2 {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 0.3rem;
}

.playground-desc {
  font-family: var(--body);
  font-size: 0.92rem;
  color: var(--ash);
  margin: 0 0 1rem;
}

.playground-desc code {
  font-size: 0.82em;
}

.playground-terminal {
  background: var(--slab);
  border: 1px solid var(--ridge);
  border-radius: 2px;
  padding: 0;
  position: relative;
  overflow: hidden;
}

/* xterm.js overrides */
.playground-terminal .xterm {
  padding: 0.75rem;
}

.playground-terminal .xterm-viewport {
  overflow-y: auto !important;
}

.playground-terminal .xterm-viewport::-webkit-scrollbar {
  width: 6px;
}

.playground-terminal .xterm-viewport::-webkit-scrollbar-track {
  background: transparent;
}

.playground-terminal .xterm-viewport::-webkit-scrollbar-thumb {
  background: var(--steel);
  border-radius: 3px;
}

/* Mode toggle (emacs/vi) */
.playground-mode-toggle {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  z-index: 10;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--flint);
  background: var(--plate);
  border: 1px solid var(--ridge);
  border-radius: 2px;
  padding: 0.2rem 0.5rem;
  cursor: pointer;
  line-height: 1;
  transition:
    color 0.15s,
    border-color 0.15s;
}

.playground-mode-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.playground-mode-toggle.vi {
  color: var(--accent);
  border-color: var(--accent-mid);
}

/* Pinned command header (sticky fold) */
.playground-pinned-cmd {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 5;
  background: var(--slab);
  font-family: "JetBrains Mono", monospace;
  font-size: 14px;
  padding: 0.75rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--ridge);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
}

.playground-pinned-cmd .pinned-prompt {
  color: var(--accent);
  font-weight: bold;
}

.playground-pinned-cmd .pinned-dollar {
  color: var(--flint);
}

.playground-pinned-cmd .pinned-text {
  color: var(--chalk);
}

@media (max-width: 640px) {
  .playground-terminal .xterm {
    padding: 0.5rem;
  }

  .playground-mode-toggle {
    font-size: 0.6rem;
    padding: 0.15rem 0.35rem;
  }
}