:root{--bg:#f6f7f9;--panel:#fff;--ink:#1c2b40;--text:#1e293b;--muted:#475569;--em:#c2570a;--line:#cbd5e1;--field:#fff;color-scheme:light}
@media (prefers-color-scheme:dark){:root{--bg:#0b1120;--panel:#111a2e;--ink:#fff;--text:#e2e8f0;--muted:#a3b1c6;--em:#f59a4a;--line:rgba(255,255,255,.18);--field:#0b1120;color-scheme:dark}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:400 16px/1.55 Roboto,system-ui,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--em)}
img{max-width:100%;height:auto}
.skip{position:absolute;left:-999px;top:8px;background:var(--panel);padding:8px 12px;border-radius:8px;z-index:20}.skip:focus{left:8px}
.l{display:inline}.d{display:none}@media (prefers-color-scheme:dark){.l{display:none}.d{display:inline}}
.top{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:24px;padding:12px max(16px,calc((100% - 1200px)/2));border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:8px}
.top nav{display:flex;gap:20px;margin-left:auto;flex-wrap:wrap;font-size:.92rem}
.top nav a{color:var(--muted);text-decoration:none;padding:6px 0}.top nav a:hover{color:var(--ink)}
main{max-width:1200px;margin:0 auto;padding:0 16px 48px}
.intro{padding:48px 0 24px}
.eyebrow{color:var(--em);font-weight:500;margin:0 0 8px}
h1{font-size:clamp(1.8rem,4vw,2.8rem);line-height:1.1;letter-spacing:-.02em;color:var(--ink);margin:0 0 12px}
h1 span{color:var(--em)}
h2{color:var(--ink);margin:0 0 16px;font-size:1.4rem}
h3.sub{color:var(--ink);font-size:1rem;margin:4px 0 0}
.muted{color:var(--muted)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:24px;margin-top:24px;scroll-margin-top:90px}
.grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px}
@media (max-width:860px){.grid{grid-template-columns:minmax(0,1fr)}}
.col{display:flex;flex-direction:column;gap:14px;min-width:0}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end}
label{display:flex;flex-direction:column;gap:4px;font-size:.85rem;color:var(--muted);font-weight:500}
label.full{width:100%}
label.check{flex-direction:row;align-items:center;gap:8px}
select,input,textarea{font:inherit;color:var(--text);background:var(--field);border:1px solid var(--line);border-radius:8px;padding:8px 10px;min-height:40px}
input[type=number]{width:120px}
input[type=checkbox]{min-height:0;width:18px;height:18px}
textarea{width:100%;font:400 13px/1.5 "Roboto Mono",ui-monospace,monospace;resize:vertical;min-height:280px}
select:focus-visible,input:focus-visible,textarea:focus-visible,.btn:focus-visible,a:focus-visible{outline:2px solid var(--em);outline-offset:2px}
.btn{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:10px 20px;font:500 .95rem Roboto,system-ui,sans-serif;color:var(--ink);background:transparent;text-decoration:none;cursor:pointer;min-height:44px}
.btn.pri{background:#c2570a;border-color:#c2570a;color:#fff}
.btn:disabled{opacity:.7;cursor:wait}
.preview{min-height:280px;display:flex;align-items:center;justify-content:center;border:1px dashed var(--line);border-radius:12px;padding:16px;background:repeating-conic-gradient(rgba(127,127,127,.08) 0 25%,transparent 0 50%) 0 0/20px 20px;overflow:auto}
.preview img{background:#fff;box-shadow:0 4px 24px rgba(0,0,0,.18)}
.diag{font-size:.88rem}
.diag ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:6px}
.diag li{border-left:3px solid var(--line);padding:4px 10px;background:color-mix(in srgb,var(--line) 35%,transparent);border-radius:0 6px 6px 0}
.diag li.Warning{border-color:#d97706}.diag li.Error{border-color:#dc2626}.diag li.Info{border-color:#2563eb}
.diag code{font-family:"Roboto Mono",monospace;font-size:.85em}
.err{color:#dc2626}
@media (prefers-color-scheme:dark){.err{color:#f87171}}
footer{border-top:1px solid var(--line);padding:24px 16px;text-align:center;font-size:.85rem;color:var(--muted)}
.top .lang{display:flex;align-items:center;padding:2px;border:1px solid var(--line,#cbd5e1);border-radius:999px;font-size:.8rem;font-weight:500}
.top .lang>*{padding:4px 10px;border-radius:999px;text-decoration:none;color:var(--muted)}
.top .lang [aria-current]{background:var(--ink);color:var(--bg)}
.top .lang a:hover{color:var(--ink)}
.small{font-size:.88rem}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
/* timing badges */
.timings{display:flex;flex-wrap:wrap;gap:6px;min-height:0}
.timings:empty{display:none}
.tb{display:inline-flex;align-items:baseline;gap:4px;padding:3px 10px;border-radius:999px;border:1px solid var(--line);background:var(--panel);font:500 .82rem/1.4 "Roboto Mono",ui-monospace,monospace;color:var(--ink);white-space:nowrap}
.tb small{font:500 .72rem Roboto,system-ui,sans-serif;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.tb.total{border-color:var(--em);color:var(--em)}
.tb.client{border-style:dashed}
/* template demo */
.editors{margin-top:14px}
textarea.code{min-height:320px}
textarea[aria-invalid=true]{border-color:#dc2626;outline-color:#dc2626}
.tplout{margin-top:20px}
.pager{display:flex;align-items:center;gap:12px}
.pager .btn{padding:6px 16px;font-size:1.2rem;line-height:1}
.thumbs{display:flex;gap:8px;overflow-x:auto;padding:4px 2px 8px;-webkit-overflow-scrolling:touch}
.thumbs:empty{display:none}
.thumb{flex:0 0 auto;border:2px solid var(--line);border-radius:8px;padding:2px;background:#fff;cursor:pointer;min-width:44px;min-height:44px}
.thumb img{display:block;height:72px;width:auto}
.thumb[aria-current=true]{border-color:var(--em)}
.zplbox summary{cursor:pointer;font-weight:500;color:var(--ink);padding:10px 0;min-height:44px}
.zplbox .row{margin-bottom:10px}
pre.zpl{margin:0;max-height:420px;overflow:auto;background:#0b1220;color:#dbe2f0;border-radius:10px;padding:12px 14px;font:400 12.5px/1.5 "Roboto Mono",ui-monospace,monospace;white-space:pre}
/* zplCloud tools */
.cloudhead{display:flex;gap:14px;align-items:flex-start}
.cloudhead img{border-radius:12px;flex:0 0 auto}
.cloudhead h2{margin-bottom:4px}
.cloud h3.sub{margin-top:20px}
.tools{list-style:none;margin:10px 0 0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px}
.tools a{display:flex;flex-direction:column;gap:2px;min-height:44px;height:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:var(--bg);text-decoration:none;color:var(--text)}
.tools a:hover{border-color:var(--em)}
.tools b{color:var(--ink);font-weight:500}
.tools span{font-size:.85rem;color:var(--muted)}
/* mobile (hamburger menu: /css/menu.css + /js/menu.js) */
@media (max-width:1023.98px){
  .top{gap:8px;flex-wrap:nowrap;padding-top:8px;padding-bottom:8px}
  .top nav{display:none}
  .top .lang{margin-left:auto}
  .top .lang>*{min-height:40px;min-width:40px;display:inline-flex;align-items:center;justify-content:center}
}
@media (max-width:380px){.top .brand img[width="135"]{width:112px;height:auto}}
.preview img{max-width:100%;height:auto}
@media (max-width:860px){
  .intro{padding:28px 0 8px}
  .card{padding:18px 16px;border-radius:14px}
  .row>label{flex:1 1 140px}
  .row>label select,.row>label input{width:100%}
  input[type=number]{width:100%}
  select,input,textarea{font-size:16px}
  textarea{font-size:14px;min-height:220px}
  textarea.code{min-height:240px}
  .row .btn.pri{flex:1 1 100%}
  .preview{min-height:200px;padding:10px}
  .tools{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
}
@media (max-width:380px){.tools{grid-template-columns:minmax(0,1fr)}}
textarea.code{white-space:pre;overflow-wrap:normal;overflow-x:auto}
label.check{min-height:44px}
input[type=checkbox]{width:22px;height:22px}