html,body,#root{height:auto;min-height:100%}.sandbox{min-height:100vh;display:flex;flex-direction:column}.top{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:12px clamp(16px,3vw,28px);background:var(--bg);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px}.brand .wordmark{font-size:20px}.brand .sep{width:1px;height:18px;background:var(--line)}.brand .page{font-size:13px;color:var(--ink-2)}.links{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.pill{display:inline-flex;align-items:center;gap:6px;font-size:10.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);padding:0 6px}.pill i{width:7px;height:7px;border-radius:50%;background:var(--line);display:inline-block}.pill.ok i{background:var(--ok)}.btn.ghost{border-color:var(--line)}.btn.ghost:hover:not(:disabled){border-color:var(--ink);background:var(--bg);color:var(--ink)}.panes{display:grid;grid-template-columns:minmax(340px,480px) minmax(0,1fr);gap:0;flex:1;align-items:start}.form{border-right:1px solid var(--line);padding:8px clamp(16px,3vw,28px) 48px}.preview{position:sticky;top:57px;max-height:calc(100vh - 57px);overflow:auto;padding:18px clamp(16px,3vw,28px) 40px;display:flex;flex-direction:column;gap:18px}@media(max-width:960px){.panes{grid-template-columns:1fr}.preview{position:static;max-height:none;order:-1;border-bottom:1px solid var(--line)}.form{border-right:0}}.group{padding:20px 0 22px;border-bottom:1px solid var(--line)}.group:last-child{border-bottom:0}.group>.label{margin-bottom:12px;color:var(--ink)}.group>.hint{font-size:12px;color:var(--muted);margin:-6px 0 12px}.group.dim .fields{opacity:.5}.fields{display:grid;grid-template-columns:1fr 1fr;gap:12px 14px}.fields .wide,.field.wide,.row.wide{grid-column:1 / -1}.field{display:flex;flex-direction:column;gap:5px;min-width:0}.field-label{font-size:10.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);display:block}.field-hint{font-size:11.5px;color:var(--muted);line-height:1.4;display:block}.field-hint code{font-family:var(--mono);font-size:11px}.field-hint.warn{border-left:3px solid var(--live);padding:6px 0 6px 10px;color:var(--ink-2)}input[type=text],input[type=number],input:not([type]),select,textarea{width:100%;min-width:0;padding:8px 10px;background:var(--bg);border:1px solid var(--line);border-radius:0;font-size:13.5px;color:var(--ink);-moz-appearance:none;appearance:none;-webkit-appearance:none}select{background-image:linear-gradient(45deg,transparent 50%,var(--ink) 50%),linear-gradient(135deg,var(--ink) 50%,transparent 50%);background-position:calc(100% - 15px) 55%,calc(100% - 10px) 55%;background-size:5px 5px;background-repeat:no-repeat;padding-right:28px}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--ink)}input:disabled,select:disabled,textarea:disabled{opacity:.45}textarea{resize:vertical;line-height:1.45}textarea.mono{font-family:var(--mono);font-size:12px}textarea.bad{border-color:var(--live)}input[type=range]{width:100%;accent-color:var(--ink);padding:8px 0}.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}.toggle{display:flex;align-items:flex-start;gap:10px;cursor:pointer;font-size:13.5px;min-width:0}.toggle.disabled{opacity:.45;cursor:default}.toggle input{position:absolute;opacity:0;width:0;height:0}.toggle .switch{flex:none;width:30px;height:18px;border:1.5px solid var(--ink);background:var(--bg);position:relative;margin-top:2px;transition:background .12s ease}.toggle .switch:after{content:"";position:absolute;top:2px;left:2px;width:11px;height:11px;background:var(--ink);transition:transform .12s ease,background .12s ease}.toggle input:checked+.switch{background:var(--ink)}.toggle input:checked+.switch:after{background:#fff;transform:translate(12px)}.toggle input:focus-visible+.switch{outline:2px solid var(--focus);outline-offset:2px}.toggle-text{display:flex;flex-direction:column;gap:2px}.seg{display:inline-flex;border:1.5px solid var(--ink);max-width:100%}.seg button{padding:8px 12px;font-size:10.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ink);border-right:1.5px solid var(--ink);white-space:nowrap}.seg button:last-child{border-right:0}.seg button.on{background:var(--ink);color:#fff}.seg.disabled{opacity:.45}.seg.disabled button{cursor:default}.preview-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.devices{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.custom-size{display:inline-flex;align-items:center;gap:6px}.custom-size input{width:74px;padding:6px 8px}.preview-meta{display:flex;align-items:center;gap:12px}.stage{width:100%;position:relative;flex:none}.stage.fill{aspect-ratio:16 / 9;min-height:360px}.stage.fill .frame{position:absolute;top:0;right:0;bottom:0;left:0}.stage.sized{display:flex;justify-content:center;overflow:hidden}.stage.sized .frame{transform-origin:top center;flex:none}.frame{border:1px solid var(--line);background:var(--surface)}.frame iframe{display:block;width:100%;height:100%;border:0;background:var(--bg)}.events{border:1px solid var(--line);padding:12px 14px;display:flex;flex-direction:column;gap:6px;max-height:220px;overflow:auto}.events-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:4px}.ev{display:grid;grid-template-columns:62px 96px minmax(0,1fr);gap:10px;font-size:12px;font-family:var(--mono);align-items:baseline}.ev-time{color:var(--muted)}.ev-name{font-weight:700}.ev-name.error{color:var(--live)}.ev-name.tool_call,.ev-name.tool_result{color:var(--ok)}.ev-payload{color:var(--ink-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}@media(max-width:520px){.ev{grid-template-columns:1fr;gap:2px}.ev-time{display:none}}.code{border:1px solid var(--line)}.code-head{display:flex;align-items:center;gap:12px;padding:10px 14px;border-bottom:1px solid var(--line);flex-wrap:wrap}.code-head .btn{margin-left:auto}.tabs{display:inline-flex;gap:2px}.tabs button{padding:6px 10px;font-size:10.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);border-bottom:2px solid transparent}.tabs button.on{color:var(--ink);border-bottom-color:var(--ink)}.snippet{margin:0;padding:14px;font-family:var(--mono);font-size:12px;line-height:1.5;white-space:pre-wrap;overflow-wrap:anywhere;background:var(--surface-2);max-height:320px;overflow:auto}.code>.field-hint{padding:10px 14px 12px;border-top:1px solid var(--line-2)}