/* nano 風ターミナルUI（配色は Catppuccin Mocha） */
:root {
  --base: #1e1e2e;
  --text: #cdd6f4;
  --dim: #6c7086;
  --red: #f38ba8;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--base); color: var(--text); }
body {
  font: 14px/1.4 ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}
#term {
  height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}
.inv { background: var(--text); color: var(--base); }

#titlebar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  white-space: pre;
  padding: 0 1ch;
}
#tb-mid { text-align: center; }
#tb-right { text-align: right; }

#editor { position: relative; min-height: 0; }
#ta, #welcome, #helpscreen {
  position: absolute; inset: 0;
  margin: 0; padding: 0 1ch;
  width: 100%; height: 100%;
  font: inherit; color: inherit; background: transparent;
  border: 0; outline: 0; resize: none;
  tab-size: 8; white-space: pre; overflow: auto;
  caret-color: var(--text);
}
#ta::selection { background: var(--text); color: var(--base); }
#welcome { color: var(--dim); pointer-events: none; }
#helpscreen { background: var(--base); }
[hidden] { display: none !important; }

#statusline { min-height: 1.4em; text-align: center; padding: 0 1ch; }
#msg { display: inline-block; padding: 0 1ch; max-width: 100%; white-space: pre-wrap; }
#msg.err { background: var(--red); }
#prompt { display: flex; text-align: left; }
#prompt-label { white-space: pre; font-weight: bold; }
#prompt-input {
  flex: 1; min-width: 0;
  font: inherit; color: inherit; background: transparent;
  border: 0; outline: 0; padding: 0;
}

#helpbar {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  padding: 0 1ch 2px;
  column-gap: 1ch;
}
.key {
  all: unset; cursor: pointer; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  padding: 1px 0;
}
.key b { background: var(--text); color: var(--base); font-weight: normal; padding: 0 2px; margin-right: 1ch; }
.key.off { color: var(--dim); }
.key.off b { background: var(--dim); }
.key:focus-visible { outline: 1px solid var(--text); }

@media (max-width: 640px) {
  #helpbar { grid-template-columns: repeat(3, 1fr); }
  #titlebar { grid-template-columns: auto 1fr auto; }
  #tb-left { display: none; }
}