/* ============================================================
   PLAYGROUND-BASE.CSS: shared look for playground pages.
   ------------------------------------------------------------
   Link it before a playground's own stylesheet:

     <link rel="stylesheet" href="../runtime/playground-base.css">
     <link rel="stylesheet" href="playground.css">

   It gives every playground the same workstation look (tokens,
   type, buttons, selects, tabs, panels, chips) so a new one only
   needs CSS for its own layout. Override tokens in :root of the
   playground's own CSS if it needs a different accent.
   ============================================================ */
:root {
  color-scheme: dark;
  --bg: #100d1f;
  --panel: #17132b;
  --panel-2: #1d1836;
  --line: #2a2448;
  --line-2: #3a325f;
  --fg: #e4e1f0;
  --muted: #958fb3;
  --dim: #655f86;
  --canvas: #0b0918;
  --cyan: #4fd3e3;
  --cyan-soft: rgba(79, 211, 227, .14);
  --amber: #f1b24a;
  --amber-soft: rgba(241, 178, 74, .14);
  --emerald: #3fd79a;
  --emerald-soft: rgba(63, 215, 154, .14);
  --red: #ef6b5b;
  --red-soft: rgba(239, 107, 91, .14);
  --display: "Literata", "Iowan Old Style", Georgia, serif;
  --sans: "Instrument Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --r: 6px;
}
[hidden] { display: none !important; }
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body { background: var(--bg); color: var(--fg); font: 14px/1.45 var(--sans); }
button, select, input { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }

/* one-screen shell: header row, then a work area */
.pg-app {
  height: 100%; display: grid; grid-template-rows: auto minmax(0, 1fr); gap: 12px;
  padding-block: 12px;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
.pg-top { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 12px 24px; }
.pg-eyebrow { font: 500 11px/1.2 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.pg-title { margin: 4px 0 0; font: 600 25px/1.15 var(--display); text-wrap: balance; }
.pg-title span { display: block; margin-top: 3px; font: 400 13px/1.3 var(--sans); color: var(--muted); }
.pg-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.pg-label { font: 500 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }

select, .btn, input[type=number], input[type=text] {
  background: var(--panel-2); border: 1px solid var(--line-2); border-radius: var(--r);
  padding: 6px 10px; min-height: 32px;
}
input[type=number] { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.btn { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; transition: border-color .15s, background .15s; white-space: nowrap; }
.btn:hover { border-color: var(--cyan); }
.btn:disabled { opacity: .45; cursor: default; border-color: var(--line-2); }
.btn svg { width: 14px; height: 14px; flex: none; }
.btn.primary { background: var(--cyan-soft); border-color: rgba(79,211,227,.5); color: var(--cyan); }
.btn.amber { background: var(--amber-soft); border-color: rgba(241,178,74,.5); color: var(--amber); }
.btn.ghost { background: transparent; }
.btn.sm { min-height: 26px; padding: 3px 9px; font-size: 12.5px; }

.panel { min-width: 0; min-height: 0; display: grid; grid-template-rows: auto minmax(0, 1fr); border: 1px solid var(--line); border-radius: 8px; background: var(--panel); overflow: hidden; }
.tabs { display: flex; border-bottom: 1px solid var(--line); }
.tabs button { flex: 1; background: none; border: 0; padding: 10px 6px; cursor: pointer; font: 500 12px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); border-bottom: 2px solid transparent; }
.tabs button[aria-selected=true] { color: var(--fg); border-bottom-color: var(--cyan); }
.pane { overflow: auto; padding: 14px; display: grid; grid-template-columns: minmax(0, 1fr); align-content: start; gap: 16px; }
.pane > * { min-width: 0; }
.sec-h { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin: 0 0 8px; font: 500 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.sec-h em { font-style: normal; text-transform: none; letter-spacing: 0; color: var(--dim); }

.seg { display: inline-flex; border: 1px solid var(--line-2); border-radius: var(--r); overflow: hidden; }
.seg button { background: var(--panel-2); border: 0; padding: 6px 12px; cursor: pointer; font-size: 12.5px; color: var(--muted); }
.seg button + button { border-left: 1px solid var(--line-2); }
.seg button[aria-pressed=true] { background: var(--cyan-soft); color: var(--cyan); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font: 12px var(--mono); padding: 5px 10px; border-radius: 999px; border: 1px dashed var(--line-2); background: none; cursor: pointer; color: var(--fg); }
.chip:hover { border-color: var(--amber); color: var(--amber); }
.chip[aria-pressed=true] { border-style: solid; border-color: var(--amber); background: var(--amber-soft); color: var(--amber); }
.chk { display: inline-flex; gap: 8px; align-items: center; font-size: 13px; cursor: pointer; }
.chk input { accent-color: var(--cyan); }
.field { display: grid; gap: 4px; }
.field > span { font: 500 10.5px var(--mono); letter-spacing: .07em; text-transform: uppercase; color: var(--muted); }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.prose { font-size: 13.5px; color: #cdc9de; max-width: 62ch; }
.prose p { margin: 0 0 10px; }
.prose h3 { font: 600 17px var(--display); color: var(--fg); margin: 6px 0 6px; }
.prose code { font: 12px var(--mono); color: #b9d7dc; }
table.data { width: 100%; border-collapse: collapse; font: 12px var(--mono); font-variant-numeric: tabular-nums; }
table.data th { font-weight: 500; color: var(--dim); text-align: left; padding: 4px; border-bottom: 1px solid var(--line); }
table.data td { padding: 4px; border-bottom: 1px solid var(--line); }

/* inside the site viewer the host bar already shows the title */
.pg-embedded .pg-top { justify-content: flex-end; }
.pg-embedded .pg-top > .pg-brand { display: none; }
.pg-embedded .pg-app { padding-block: 10px; }

@media (max-width: 560px) { .pg-title { font-size: 22px; } }
@media (prefers-reduced-motion: reduce) { .btn { transition: none; } }