*{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:44px 20px 60px;
}
.wrap{max-width:1240px;margin:0 auto;display:flex;flex-direction:column;gap:20px}
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}
.cols{display:grid;grid-template-columns:minmax(300px,7fr) minmax(420px,13fr);gap:16px;
  align-items:start}
.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)}
.chip{font-size:12.5px;padding:4px 12px;border:1px solid var(--border);border-radius:999px;
  background:none;color:var(--ink);cursor:pointer;font-family:inherit}
.chip:hover{border-color:var(--accent);color:var(--accent-ink)}
#cmhost .cm-editor{min-height:440px}
button:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
select.ctl{font-size:12.5px;padding:6px 8px;border:1px solid var(--border);border-radius:6px;
  background:var(--card);color:var(--ink);font-family:inherit;max-width:210px}
.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)}
.importbox{display:none;margin-top:12px}
.importbox.open{display:block}
.importbox textarea{width:100%;min-height:120px;font-size:12.5px;padding:10px;resize:vertical;
  border:1px solid var(--border);border-radius:6px;background:var(--bg);color:var(--ink);
  font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace}
.importbox .hint{font-size:12.5px;color:var(--muted);margin:6px 0 8px}
#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}
.preview{overflow-x:auto;position:relative}
.preview svg{display:block;max-width:100%;height:auto;user-select:none;-webkit-user-select:none}
.preview svg g[data-line]{cursor:grab}
@media (prefers-reduced-motion: no-preference){
  .preview svg g[data-line]{transition:opacity .15s}
}
.dragghost{
  position:fixed;z-index:50;pointer-events:none;max-width:240px;
  padding:8px 14px;border-radius:8px;font-size:13px;font-weight:600;
  background:var(--card);color:var(--ink);border:1px solid var(--accent);
  box-shadow:0 6px 22px rgba(10,30,45,.22),0 2px 6px rgba(10,30,45,.14);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  transform:rotate(1.5deg) scale(1.03);
}
.dropline{
  position:absolute;z-index:5;pointer-events:none;height:3px;border-radius:2px;
  background:var(--accent);box-shadow:0 0 0 1px var(--card);
}
.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}
.btn{font-size:13.5px;padding:7px 16px;border:1px solid var(--border);border-radius:6px;
  background:none;color:var(--ink);cursor:pointer;font-family:inherit}
.btn:hover{border-color:var(--accent);color:var(--accent-ink)}
.method{color:var(--muted);font-size:12.5px}
.about{border-top:1px solid var(--border);padding-top:18px;color:var(--muted);
  font-size:13.5px;line-height:1.65;max-width:65ch}
.about h2{font-family:Charter,Georgia,serif;font-size:16px;color:var(--ink);margin:0 0 8px}
.about p{margin:0 0 10px}
.about a{color:var(--accent-ink)}
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){ .cols{grid-template-columns:1fr} #cmhost .cm-editor{min-height:280px} }
@media (prefers-reduced-motion: no-preference){
  .chip,.btn{transition:border-color .15s,color .15s}
}