.xj-page{--xj-accent:var(--primary,#0d9488);--xj-accent-dim:color-mix(in srgb,var(--xj-accent) 14%,transparent);--xj-ink:#0c1f1d;--xj-radius:18px;--xj-radius-sm:12px;--xj-border:var(--border,1px solid rgba(15,23,42,.08));padding-bottom:3rem;}
@media (min-width:900px){
.xj-page{padding-bottom:3rem;}
}
.xj-workbench{position:relative;background:var(--surface,#fff);border:var(--xj-border);border-radius:var(--xj-radius);box-shadow:var(--shadow-soft,0 12px 40px rgba(15,23,42,.07));overflow:clip;}
.xj-workbench::before{content:'';position:absolute;inset:0 0 auto 0;height:4px;background:linear-gradient(90deg,var(--xj-accent),color-mix(in srgb,var(--xj-accent) 40%,#6366f1));pointer-events:none;}
.xj-mode-rail{display:flex;gap:.35rem;padding:.65rem .85rem;background:var(--surface-muted,#f0fdfa);border-bottom:var(--xj-border);overflow-x:auto;-webkit-overflow-scrolling:touch;}
@media (min-width:900px){
.xj-mode-rail{display:none;}
}
.xj-mode-btn{flex:1;min-width:5.5rem;padding:.55rem .75rem;font-size:.8rem;font-weight:700;border-radius:999px;border:var(--xj-border);background:var(--surface,#fff);color:var(--text-main,var(--xj-ink));cursor:pointer;transition:background .15s,box-shadow .15s,color .15s;white-space:nowrap;}
.xj-mode-btn[aria-pressed="true"]{background:var(--xj-accent);color:#fff;border-color:transparent;box-shadow:0 4px 14px var(--xj-accent-dim);}
.xj-mode-btn:focus-visible{outline:2px solid var(--xj-accent);outline-offset:2px;}
.xj-grid{display:grid;grid-template-columns:1fr;gap:0;}
@media (min-width:900px){
.xj-grid{grid-template-columns:minmax(0,1.05fr) minmax(0,16rem) minmax(0,1fr);gap:0;align-items:stretch;}
}
.xj-pane{display:flex;flex-direction:column;min-width:0;border-bottom:var(--xj-border);}
@media (min-width:900px){
.xj-pane{border-bottom:0;}
}
.xj-workbench[data-xj-active-mode="source"] .xj-pane--result{display:none;}
.xj-workbench[data-xj-active-mode="result"] .xj-pane--source{display:none;}
@media (min-width:900px){
.xj-workbench[data-xj-active-mode="source"] .xj-pane--result,
.xj-workbench[data-xj-active-mode="result"] .xj-pane--source{display:flex;}
}
.xj-pane-head{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.5rem;padding:.85rem 1rem .5rem;}
.xj-pane-kicker{font-size:.68rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--text-muted);}
.xj-pane-meta{font-size:.75rem;color:var(--text-muted);font-weight:600;}
.xj-editor-wrap{flex:1;display:flex;flex-direction:column;padding:0 1rem 1rem;min-height:0;}
.xj-editor{width:100%;min-height:min(48vh,380px);padding:.9rem 1rem;border-radius:var(--xj-radius-sm);border:var(--xj-border);font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.78rem;line-height:1.55;background:var(--surface,#fafafa);color:var(--text-main,#0f172a);resize:vertical;transition:border-color .15s,box-shadow .15s;}
.xj-editor:focus{outline:none;border-color:var(--xj-accent);box-shadow:0 0 0 3px var(--xj-accent-dim);}
.xj-editor--invalid{border-color:#dc2626;}
.xj-editor[readonly]{background:var(--surface-muted,#f8fafc);}
.xj-alert{font-size:.82rem;padding:.55rem .75rem;margin:0 1rem 1rem;border-radius:var(--xj-radius-sm);background:#fef2f2;color:#991b1b;border:1px solid #fecaca;display:none;}
.xj-alert--show{display:block;}
.xj-control-deck{padding:.85rem .9rem;border-top:var(--xj-border);background:linear-gradient(180deg,var(--surface-muted,#f0fdfa) 0%,var(--surface,#fff) 100%);display:flex;flex-direction:column;gap:.65rem;}
@media (min-width:900px){
.xj-control-deck{border-top:0;border-left:var(--xj-border);border-right:var(--xj-border);justify-content:flex-start;}
}
.xj-live{display:flex;align-items:center;gap:.5rem;font-size:.82rem;font-weight:600;color:var(--text-main);}
.xj-live input{width:1rem;height:1rem;accent-color:var(--xj-accent);}
.xj-actions{display:flex;flex-wrap:wrap;gap:.5rem;}
@media (max-width:899px){
.xj-actions--primary{flex-wrap:nowrap;}
.xj-actions--primary .xj-btn--primary{flex:1.15;}
.xj-actions--primary .xj-btn--ghost{flex:1;}
}
.xj-btn{display:inline-flex;align-items:center;justify-content:center;padding:.68rem 1rem;font-size:.85rem;font-weight:700;border-radius:var(--xj-radius-sm);border:0;cursor:pointer;transition:transform .12s,background .15s,box-shadow .15s;}
.xj-btn:disabled{opacity:.55;cursor:not-allowed;}
.xj-btn--primary{background:var(--xj-accent);color:#fff;box-shadow:0 6px 20px var(--xj-accent-dim);}
.xj-btn--primary:hover:not(:disabled){transform:translateY(-1px);}
.xj-btn--ghost{background:transparent;color:var(--text-main);border:var(--xj-border);}
.xj-btn--outline{background:var(--surface,#fff);color:var(--xj-accent);border:2px solid var(--xj-accent);}
.xj-btn--flash{animation:xj-pulse .6s ease;}
@keyframes xj-pulse{0%{filter:brightness(1);}50%{filter:brightness(1.08);}100%{filter:brightness(1);}}
.xj-spinner{width:1.1rem;height:1.1rem;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:xj-spin .7s linear infinite;}
@keyframes xj-spin{to{transform:rotate(360deg);}}
.xj-prose{margin-top:2.25rem;}
.xj-prose h2{font-size:1.35rem;font-weight:800;margin:0 0 .75rem;line-height:1.25;}
.xj-prose h3{font-size:1.05rem;font-weight:700;margin:1.75rem 0 .5rem;}
.xj-prose p,.xj-prose li{font-size:.95rem;line-height:1.65;color:var(--text-main,#1e293b);}
.xj-prose p{margin:0 0 1rem;}
.xj-callout{margin:1.5rem 0;padding:1rem 1.15rem;border-radius:var(--xj-radius-sm);border-left:4px solid #f59e0b;background:#fffbeb;color:#78350f;font-size:.92rem;line-height:1.55;}
.xj-table-wrap{overflow-x:auto;margin:1rem 0;border-radius:var(--xj-radius-sm);border:var(--xj-border);}
.xj-table{width:100%;border-collapse:collapse;font-size:.88rem;}
.xj-table th,.xj-table td{padding:.65rem .85rem;text-align:left;border-bottom:1px solid rgba(15,23,42,.06);}
.xj-table th{background:var(--surface-muted,#f8fafc);font-weight:700;}
.xj-dl{display:grid;gap:1rem;margin:1.25rem 0;}
@media (min-width:640px){
.xj-dl{grid-template-columns:1fr 1fr;}
}
.xj-dl div{padding:1rem;border-radius:var(--xj-radius-sm);border:var(--xj-border);background:var(--surface,#fff);}
.xj-dl dt{font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);margin-bottom:.35rem;}
.xj-dl dd{margin:0;font-size:.88rem;line-height:1.55;color:var(--text-main);}
.xj-steps{counter-reset:xj;list-style:none;padding:0;margin:1rem 0;}
.xj-steps li{counter-increment:xj;position:relative;padding:.85rem 0 .85rem 2.5rem;border-bottom:1px solid rgba(15,23,42,.06);font-size:.92rem;line-height:1.55;}
.xj-steps li::before{content:counter(xj);position:absolute;left:0;top:.85rem;width:1.75rem;height:1.75rem;border-radius:50%;background:var(--xj-accent-dim);color:var(--xj-accent);font-weight:800;font-size:.75rem;display:flex;align-items:center;justify-content:center;}