.rb{--rb-line:var(--line,#dfe3dc);--rb-ink:var(--ink,#131713);--rb-muted:var(--muted,#687068);--rb-accent:var(--green,#1e5b3a);--rb-soft:var(--green-soft,#e7f0e9);--rb-hi:var(--lime,#dff36f);display:grid;gap:16px;min-width:0}
.rb-drop{border:2px dashed var(--rb-line);border-radius:14px;background:#fff;padding:34px 18px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s}
.rb-drop:hover,.rb-drop.is-over{border-color:var(--rb-accent);background:var(--rb-soft)}
.rb-drop:focus-visible{outline:3px solid var(--rb-hi);outline-offset:2px}
.rb-drop strong{display:block;font-size:18px;margin-bottom:4px;color:var(--rb-ink)}
.rb-drop span{color:var(--rb-muted);font-size:14px}
.rb-opts{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px;background:#fff;border:1px solid var(--rb-line);border-radius:12px;padding:14px;min-width:0}
.rb-opts label{display:grid;gap:6px;align-content:start;font-size:13px;font-weight:600;color:var(--rb-ink);min-width:0}
.rb-opts output{font-weight:500;color:var(--rb-muted)}
.rb-opts select{padding:8px 10px;border:1px solid var(--rb-line);border-radius:8px;font-size:14px;background:#fff;color:var(--rb-ink);min-width:0;max-width:100%}
.rb-presets{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.rb-hint{font-size:13px;color:var(--rb-muted);flex:1 1 260px}
.rb-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.rb-btn{border:0;border-radius:999px;padding:10px 18px;font-weight:700;font-size:14px;cursor:pointer;background:var(--rb-ink);color:#fff}
.rb-btn.ghost{background:transparent;border:1px solid var(--rb-ink);color:var(--rb-ink)}
.rb-btn:disabled{opacity:.45;cursor:not-allowed}
.rb-summary{font-size:14px;color:var(--rb-muted)}
.rb-bar{height:6px;border-radius:6px;background:var(--rb-soft);overflow:hidden}
.rb-bar i{display:block;height:100%;width:0;background:var(--rb-accent);transition:width .2s}
.rb-error{margin:0;background:#fbeeee;border:1px solid #e3b9b9;color:#7d2424;border-radius:10px;padding:10px 12px;font-size:14px}
.rb-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.rb-list:empty{display:none}
.rb-item{display:grid;gap:8px;align-content:start;background:#fff;border:1px solid var(--rb-line);border-radius:12px;padding:10px;min-width:0}
.rb-view{position:relative;aspect-ratio:1/1;border-radius:8px;overflow:hidden;display:flex;align-items:center;justify-content:center;background:#f2f3f0}
.rb-view img,.rb-view canvas{max-width:100%;max-height:100%;width:auto;height:auto;display:block;background-color:#fff;background-image:linear-gradient(45deg,#e4e6e2 25%,transparent 25%),linear-gradient(-45deg,#e4e6e2 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#e4e6e2 75%),linear-gradient(-45deg,transparent 75%,#e4e6e2 75%);background-size:16px 16px;background-position:0 0,0 8px,8px -8px,-8px 0}
.rb-opts small{font-weight:500;color:var(--rb-muted);font-size:12px}
.rb-view.is-busy::after{content:"";position:absolute;inset:0;background:rgba(255,255,255,.55)}
.rb-name{font-weight:600;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rb-meta{font-size:13px;color:var(--rb-muted);font-variant-numeric:tabular-nums}
.rb-meta .err{color:#9a2f2f}
.rb-row{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.rb-small{border:1px solid var(--rb-line);background:#fff;color:var(--rb-ink);border-radius:999px;padding:6px 12px;font-size:13px;font-weight:700;cursor:pointer}
.rb-small:disabled{opacity:.45;cursor:not-allowed}
.rb-note{font-size:13px;color:var(--rb-muted);margin:0}
@media (max-width:480px){.rb-list{grid-template-columns:minmax(0,1fr)}.rb-drop{padding:26px 14px}}
/* the page styles every input and button inside .lab-tool; these rules win back the tool's own look */
.rb [hidden]{display:none!important}
.rb .rb-small{padding:6px 12px;border:1px solid var(--rb-line);background:#fff;color:var(--rb-ink)}
.rb .rb-opts input[type=range]{width:100%;padding:0;border:0;margin:0;accent-color:var(--rb-accent);background:transparent}
.rb .rb-opts input[type=color]{width:100%;height:38px;padding:2px;border:1px solid var(--rb-line);border-radius:8px;background:#fff;cursor:pointer}