/* Mana Playground. Builds on ../theme/site.css and its colour tokens. */

:root {
  --error: #c62828;
  --warning: #9a6700;
  --output-ground: var(--code-ground);
  --output-ink: var(--code-ink);
  --mono: "Cascadia Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --error: #ff8a80;
    --warning: #f2cc60;
  }
}

.playground {
  padding: clamp(24px, 4vw, 40px) max(16px, 5vw) clamp(32px, 5vw, 56px);
}

.playground-intro h1 {
  margin: 0;
  font-size: clamp(30px, 5vw, 44px);
  line-height: 1.15;
}

.playground-intro p {
  margin: 8px 0 0;
  max-width: 48em;
  color: var(--ink-soft);
  font-size: 16px;
}

/* Toolbar */

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 28px;
  margin: 24px 0 16px;
}

.toolbar-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.toolbar-label {
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 700;
  margin-right: 4px;
}

.toolbar .button {
  padding: 8px 22px;
  font: inherit;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}

.toolbar .button:disabled {
  opacity: 0.45;
  cursor: default;
}

.toolbar .button-primary:disabled:hover {
  background: var(--accent);
  border-color: var(--accent);
}

.toolbar .button-secondary:disabled:hover { background: transparent; }

.chip {
  padding: 6px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}

.chip:hover { border-color: var(--accent); }

.chip[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
}

.button:focus-visible,
.chip:focus-visible,
.diagnostics button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

/* Editor and output */

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

@media (min-width: 960px) {
  .workspace { grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); }
}

.panel {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  overflow: hidden;
}

.panel-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 14px;
  border-bottom: 1px solid var(--line);
}

.panel-header h2 {
  margin: 0;
  font-size: 14px;
  font-family: var(--mono);
  font-weight: 700;
}

.panel-hint,
.status {
  color: var(--ink-soft);
  font-size: 13px;
}

kbd {
  font-family: var(--mono);
  font-size: 12px;
  padding: 1px 5px;
  border: 1px solid var(--line);
  border-radius: 4px;
}

.status[data-state="error"] { color: var(--error); }

.editor {
  display: flex;
  height: clamp(320px, 60vh, 640px);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.6;
}

.gutter {
  flex: none;
  margin: 0;
  padding: 12px 10px 12px 14px;
  min-width: 3.2em;
  overflow: hidden;
  border-radius: 0;
  background: var(--ground);
  color: var(--ink-soft);
  text-align: right;
  font: inherit;
  user-select: none;
}

.editor textarea {
  flex: 1;
  min-width: 0;
  margin: 0;
  padding: 12px 14px;
  border: 0;
  resize: none;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  tab-size: 4;
  white-space: pre;
  overflow: auto;
}

.editor textarea:focus { outline: none; }
.editor:focus-within { box-shadow: inset 0 0 0 2px var(--accent); }

.output {
  flex: 1;
  min-height: 12em;
  max-height: clamp(320px, 60vh, 640px);
  margin: 0;
  padding: 12px 14px;
  overflow: auto;
  border-radius: 0;
  background: var(--output-ground);
  color: var(--output-ink);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.output .trace-warning { color: #f2cc60; }
.output .trace-error { color: #ff8a80; }
.output .trace-debug { opacity: 0.7; }
.output .note { color: #9fb3c8; font-style: italic; }

.diagnostics {
  margin: 0;
  padding: 8px 0;
  list-style: none;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 13px;
}

.diagnostics button {
  display: block;
  width: 100%;
  padding: 4px 14px;
  border: 0;
  background: none;
  color: var(--error);
  font: inherit;
  text-align: left;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  cursor: pointer;
}

.diagnostics button:hover { background: var(--ground); }
.diagnostics .severity-warning button { color: var(--warning); }

.notice {
  margin: 16px 0 0;
  color: var(--error);
}