/* color tokens */
:root {
  --c-string : #98c379;
  --c-number : #d19a66;
  --c-bool   : #56b6c2;
  --c-null   : #e06c75;
}

#app-body {
  max-width: 1200px;
  display: flex; flex-direction: column;
  min-height: 0;
}

#app-body {
  gap     : 1rem;
  padding : 1rem;
  width   : 100%;
  /* 
  height  : 100dvh;
  max-width: 1200px; 
  */
  
}

@media (max-width: 680px) {
  #app-body { grid-template-columns: 1fr; }
}

/* ── layout ── */
.layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  flex: 1;
  min-height: 0;
  width: 100%;
}

@media (max-width: 680px) {
  body { height: auto; overflow: auto; }
  .layout { grid-template-columns: 1fr; }
}

.input-col {
  display: flex; flex-direction: column; gap: .6rem; min-height: 0;
}

/* CodeInputPane fills column */
.input-col > .pane { flex: 1; min-height: 0; }

.input-actions { display: flex; gap: .5rem; flex-wrap: wrap; flex-shrink: 0; }

/* ── tree col ── */
.tree-col {
  display: flex; flex-direction: column; gap: .6rem;
  min-height: 0; overflow: hidden;
}

.tree-empty {
  flex: 1; display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: .6rem; opacity: .25; font-size: .9rem;
}

/* ── stats ── */
.stats-bar {
  display: flex; gap: .75rem; flex-wrap: wrap; flex-shrink: 0;
  font-size: .75rem; opacity: .55; padding: .35rem 0;
}
.stat { display: flex; align-items: center; gap: .25rem; font-variant-numeric: tabular-nums; }

/* ── search ── */
.search-row {
  display: flex; align-items: center; gap: .4rem; flex-shrink: 0;
  background: color-mix(in srgb, var(--fg) 6%, transparent);
  border-radius: .4rem; padding: .3rem .5rem;
}
.search-icon { opacity: .4; }
.search-input {
  flex: 1; background: transparent; border: none; outline: none;
  color: var(--fg); font-size: .85rem;
}
.search-input::placeholder { opacity: .35; }

/* ── tree ── */
.tree {
  flex: 1; overflow: auto; font-family: 'Fira Code', 'Cascadia Code', monospace;
  font-size: .8rem; line-height: 1.65;
  padding: .4rem 0;
}

.node { user-select: none; }

.node-row {
  display: flex; align-items: center; gap: .3rem;
  padding: .1rem .4rem; border-radius: .3rem; cursor: pointer;
  transition: background .1s;
  position: relative;
}
.node-row:hover { background: color-mix(in srgb, var(--fg) 7%, transparent); }
.node-row.leaf  { cursor: default; }
.node-row.closing { cursor: default; }
.node-row.closing:hover { background: transparent; }

.node-children {
  padding-left: 1.4rem;
  border-left: 1px solid color-mix(in srgb, var(--fg) 8%, transparent);
  margin-left: .7rem;
}

.toggle-icon { opacity: .4; flex-shrink: 0; }
.leaf-indent { width: 1rem; flex-shrink: 0; }
.type-icon   { opacity: .4; flex-shrink: 0; font-size: .75rem; }

.node-key {
  color: color-mix(in srgb, var(--accent) 80%, var(--fg));
  font-weight: 500;
}
.colon { opacity: .4; margin-right: .2rem; }

.prim-val {
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  max-width: 40ch; flex-shrink: 1;
}

.preview { opacity: .35; font-size: .75rem; }
.bracket { opacity: .5; }

/* actions — hidden until hover */
.node-actions {
  display: flex; gap: .1rem; margin-left: auto; flex-shrink: 0;
  opacity: 0; transition: opacity .1s;
}
.node-row:hover .node-actions { opacity: 1; }

.act-btn {
  background: transparent; border: none; color: var(--fg); cursor: pointer;
  padding: .1rem .2rem; border-radius: .25rem; display: flex; align-items: center;
  opacity: .5; transition: opacity .1s;
}
.act-btn:hover { opacity: 1; }

.highlighted { background: color-mix(in srgb, var(--accent) 10%, transparent); border-radius: .3rem; }

.filtered-hint { font-size: .72rem; opacity: .35; padding: .1rem .4rem; font-style: italic; }

/* ── error ── */
.err-block {
  display: flex; align-items: flex-start; gap: .5rem;
  color: #f66; font-size: .82rem; padding: .5rem .6rem;
  background: color-mix(in srgb, #f44 8%, transparent);
  border-radius: .4rem; flex-shrink: 0;
}