*{box-sizing:border-box}
html,body{margin:0}
body{
  font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  color:var(--ink);
  background-color:var(--bg);
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),
                   linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:26px 26px;
  padding:40px 0 40px;
}
h1{font-family:Charter,Georgia,"Times New Roman",serif;font-size:32px;font-weight:700;
  letter-spacing:-.01em;margin:0;text-wrap:balance}
.tagline{color:var(--muted);margin:6px 0 0;font-size:15.5px;max-width:62ch}
.card{background:var(--card);border:1px solid var(--border);border-radius:8px;
  box-shadow:var(--shadow);padding:18px}
.chips{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:12px}
.chips .lead{font-size:12.5px;color:var(--muted)}
#cmhost .cm-editor{min-height:440px}
button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.savedchip{display:inline-flex;align-items:stretch;border:1px solid var(--border);
  border-radius:999px;overflow:hidden}
.savedchip button{border:none;background:none;color:var(--ink);cursor:pointer;
  font-family:inherit;font-size:12.5px;padding:4px 6px 4px 12px}
.savedchip button:hover{color:var(--accent-ink)}
.savedchip .chipdel{padding:4px 10px 4px 4px;color:var(--muted)}
.savedchip .chipdel:hover{color:var(--err)}
#warns{margin:8px 0 0;padding:0;list-style:none;font-size:12.5px;color:var(--err)}
details.syntax{margin-top:12px;font-size:13px;color:var(--muted)}
details.syntax summary{cursor:pointer;font-size:12.5px}
details.syntax code{font-family:ui-monospace,Menlo,monospace;font-size:12px;
  background:var(--bg);padding:1px 5px;border-radius:4px}
details.syntax table{border-collapse:collapse;margin-top:8px}
details.syntax td{padding:3px 12px 3px 0;vertical-align:top}
.placeholder{color:var(--muted);font-size:14.5px;margin:0;padding:30px 10px;text-align:center}
.actions{display:flex;gap:10px;align-items:center;margin-top:14px;flex-wrap:wrap}
.method{color:var(--muted);font-size:12.5px}
footer{color:var(--muted);font-size:12.5px;text-align:center;line-height:1.6}
footer a{color:var(--muted)}
footer a:hover{color:var(--accent-ink)}
@media (max-width:900px){ #cmhost .cm-editor{min-height:280px} }

/* view toggle */
.viewtoggle{display:inline-flex;border:1px solid var(--border);border-radius:999px;
  overflow:hidden;margin-bottom:12px}
.viewtoggle button{border:none;background:none;color:var(--muted);cursor:pointer;
  font-family:inherit;font-size:12.5px;font-weight:600;padding:6px 16px}
.viewtoggle button.on{background:var(--accent);color:var(--card)}
.viewtoggle button:not(.on):hover{color:var(--accent-ink)}

/* card bodies are popover targets (add child / remove branch) in edit mode */
.preview svg [data-edit^="card-"]{cursor:pointer}
.preview svg [data-edit="removeassump"]{cursor:pointer}
.preview svg [data-edit="removeassump"]:hover{fill:var(--err)}