/* earmuff playground — full-bleed editor + output layout. */

:root {
  --pg-bg: #ffffff;
  --pg-fg: #1b1b1f;
  --pg-muted: #6a6a78;
  --pg-border: #e2e2ea;
  --pg-panel: #f7f7fb;
  --pg-accent: #6b78ff;
  --pg-accent-fg: #ffffff;
  --pg-err: #d2294b;
  --pg-warn: #b07a00;
  --pg-topbar-h: 52px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --pg-bg: #16161a;
    --pg-fg: #e8e8ef;
    --pg-muted: #9a9aa8;
    --pg-border: #2a2a33;
    --pg-panel: #1d1d23;
    --pg-accent: #8b95ff;
    --pg-err: #ff6b86;
    --pg-warn: #e0a94a;
  }
}

* { box-sizing: border-box; }

.pg-body {
  margin: 0;
  height: 100vh;
  overflow: hidden;
  background: var(--pg-bg);
  color: var(--pg-fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

#pg-app {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* ---- Top bar ---------------------------------------------------------- */
.pg-topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  height: var(--pg-topbar-h);
  padding: 0 14px;
  border-bottom: 1px solid var(--pg-border);
  background: var(--pg-panel);
  flex: 0 0 auto;
}
.pg-brand {
  font-weight: 700;
  font-size: 18px;
  color: var(--pg-fg);
  text-decoration: none;
}
.pg-title { color: var(--pg-muted); font-size: 14px; }
.pg-spacer { flex: 1 1 auto; }

.pg-field {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--pg-muted);
}
.pg-field select {
  background: var(--pg-bg);
  color: var(--pg-fg);
  border: 1px solid var(--pg-border);
  border-radius: 6px;
  padding: 4px 8px;
  font-size: 13px;
  max-width: 220px;
}

.pg-btn {
  border: 1px solid var(--pg-border);
  background: var(--pg-bg);
  color: var(--pg-fg);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 13px;
  cursor: pointer;
  text-decoration: none;
  line-height: 1.4;
}
.pg-btn:hover:not(:disabled) { border-color: var(--pg-accent); }
.pg-btn:disabled { opacity: 0.45; cursor: default; }
.pg-btn-primary {
  background: var(--pg-accent);
  color: var(--pg-accent-fg);
  border-color: var(--pg-accent);
}
.pg-ghost { color: var(--pg-muted); }

.pg-menu { position: relative; }
.pg-menu-list {
  position: absolute;
  right: 0;
  top: calc(100% + 4px);
  background: var(--pg-bg);
  border: 1px solid var(--pg-border);
  border-radius: 8px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.18);
  min-width: 200px;
  z-index: 20;
  overflow: hidden;
}
.pg-menu-list button {
  display: block;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  color: var(--pg-fg);
  padding: 9px 12px;
  font-size: 13px;
  cursor: pointer;
}
.pg-menu-list button:hover { background: var(--pg-panel); }

/* ---- Main split ------------------------------------------------------- */
.pg-main {
  flex: 1 1 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 0;
}
.pg-editor-pane,
.pg-output-pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}
.pg-editor-pane { border-right: 1px solid var(--pg-border); }
.pg-editor { flex: 1 1 auto; min-height: 0; }
.pg-status {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--pg-muted);
  padding: 5px 12px;
  border-top: 1px solid var(--pg-border);
  background: var(--pg-panel);
}
.pg-status.pg-ok { color: #2c9f5a; }
.pg-status.pg-err { color: var(--pg-err); }

/* ---- Output tabs ------------------------------------------------------ */
.pg-tabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--pg-border);
  background: var(--pg-panel);
  flex: 0 0 auto;
}
.pg-tab {
  border: 0;
  background: transparent;
  color: var(--pg-muted);
  padding: 10px 16px;
  font-size: 13px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.pg-tab-active {
  color: var(--pg-fg);
  border-bottom-color: var(--pg-accent);
}
.pg-badge {
  display: inline-block;
  min-width: 16px;
  font-size: 11px;
  color: var(--pg-accent-fg);
  background: var(--pg-muted);
  border-radius: 8px;
  padding: 0 5px;
}
.pg-badge.pg-has-err { background: var(--pg-err); }
.pg-badge:empty { display: none; }

.pg-tab-body { flex: 1 1 auto; position: relative; min-height: 0; }
.pg-panel {
  display: none;
  position: absolute;
  inset: 0;
  overflow: auto;
  padding: 12px 14px;
}
.pg-panel-active { display: block; }

/* Problems list */
.pg-problems { list-style: none; margin: 0; padding: 0; font-size: 13px; }
.pg-problems li {
  display: flex;
  gap: 8px;
  padding: 6px 4px;
  border-bottom: 1px solid var(--pg-border);
  cursor: pointer;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
}
.pg-problems li:hover { background: var(--pg-panel); }
.pg-problems .pg-loc { color: var(--pg-muted); white-space: nowrap; }
.pg-problems .pg-sev-error .pg-dot { color: var(--pg-err); }
.pg-problems .pg-sev-warning .pg-dot { color: var(--pg-warn); }
.pg-empty { color: var(--pg-muted); font-size: 13px; padding: 6px 4px; }

/* Events table */
.pg-events table { border-collapse: collapse; width: 100%; font-size: 12px; font-family: ui-monospace, Menlo, monospace; }
.pg-events th, .pg-events td { text-align: left; padding: 3px 8px; border-bottom: 1px solid var(--pg-border); white-space: nowrap; }
.pg-events th { position: sticky; top: 0; background: var(--pg-panel); color: var(--pg-muted); }

/* LilyPond source */
.pg-lilypond { margin: 0; font-size: 12px; font-family: ui-monospace, Menlo, monospace; white-space: pre; color: var(--pg-fg); }

/* Sheet music (VexFlow draws SVG here) */
.pg-sheet { background: #fff; border-radius: 6px; padding: 8px; overflow-x: auto; }
.pg-sheet svg { max-width: 100%; }
.pg-sheet-note { color: var(--pg-muted); font-size: 12px; padding: 6px 0; }
/* The sheet panel is always a white page, so part labels use a fixed dark
   ink regardless of the site's light/dark theme. */
.pg-sheet-part {
  color: #333;
  font-size: 12px;
  font-weight: 600;
  margin: 12px 0 4px;
  padding-left: 4px;
}

/* ---- Responsive ------------------------------------------------------- */
@media (max-width: 820px) {
  .pg-main { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr; }
  .pg-editor-pane { border-right: 0; border-bottom: 1px solid var(--pg-border); }
  .pg-title { display: none; }
}