:root{--bg:#0b1220;--panel:#111a2e;--panel-2:#0e1628;--border:#1e2a44;--border-hi:#2c3d62;--text:#e6edf7;--muted:#8aa0c2;--cyan:#13b9fd;--blue:#0175c2;--grad:linear-gradient(135deg, var(--cyan), var(--blue));--danger:#ff8f8f;--ok:#6ee7b7;--ui:"Inter", system-ui, -apple-system, "Segoe UI", sans-serif;--mono:"JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;--radius:14px;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*{box-sizing:border-box;margin:0;padding:0}html{background:var(--bg)}body{min-height:100vh;color:var(--text);font-family:var(--ui);-webkit-font-smoothing:antialiased;background:radial-gradient(1000px 520px at 15% -10%, #13b9fd24, transparent 60%), radial-gradient(800px 480px at 95% 0%, #0175c229, transparent 60%), var(--bg);font-size:15px;line-height:1.6;overflow-x:hidden}body:before{content:"";z-index:-1;pointer-events:none;background-image:linear-gradient(#8aa0c20d 1px,#0000 1px),linear-gradient(90deg,#8aa0c20d 1px,#0000 1px);background-size:40px 40px;position:fixed;inset:0;-webkit-mask-image:linear-gradient(#000,#0000 70%);mask-image:linear-gradient(#000,#0000 70%)}a{color:inherit}button,input,textarea{font:inherit;color:inherit}::selection{background:#13b9fd4d}:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}.site{max-width:1240px;margin:0 auto;padding:clamp(48px,9vw,104px) clamp(16px,4vw,40px) 40px}.hero{max-width:720px;margin-bottom:clamp(32px,5vw,48px)}.chip-tag{border:1px solid var(--border-hi);color:var(--muted);font-family:var(--mono);background:#111a2eb3;border-radius:999px;align-items:center;gap:8px;padding:5px 12px;font-size:12px;line-height:16px;display:inline-flex}.chip-tag:before{content:"";background:var(--cyan);width:6px;height:6px;box-shadow:0 0 10px var(--cyan);border-radius:50%}.hero-title{letter-spacing:-.045em;background:linear-gradient(100deg, var(--text) 25%, var(--cyan) 62%, #3a9be0);color:#0000;-webkit-background-clip:text;background-clip:text;margin-top:20px;font-size:clamp(44px,9vw,84px);font-weight:800;line-height:1}.hero-sub{max-width:540px;color:var(--muted);margin-top:18px;font-size:clamp(16px,2.2vw,19px);line-height:1.5}.btn{white-space:nowrap;cursor:pointer;border:1px solid #0000;border-radius:999px;justify-content:center;align-items:center;gap:6px;padding:7px 16px;font-size:13px;font-weight:600;line-height:18px;transition:transform .15s,box-shadow .2s,filter .2s;display:inline-flex}.btn:hover:not(:disabled){transform:translateY(-1px)}.btn:active:not(:disabled){transform:translateY(0)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{color:#03121f;background:linear-gradient(135deg, var(--cyan), #0a8fdc);box-shadow:0 4px 18px #13b9fd40}.btn-primary:hover:not(:disabled){filter:brightness(1.06);box-shadow:0 6px 24px #13b9fd66}.btn-ghost{color:var(--text);background:linear-gradient(var(--panel), var(--panel)) padding-box, var(--grad) border-box}.btn-ghost:hover:not(:disabled){box-shadow:0 4px 18px #0175c24d}.footer{border-top:1px solid var(--border);color:var(--muted);flex-wrap:wrap;justify-content:center;gap:6px 10px;margin-top:64px;padding-top:24px;font-size:13px;display:flex}.footer a{color:var(--text);border-bottom:1px solid var(--border-hi);text-decoration:none;transition:color .15s,border-color .15s}.footer a:hover{color:var(--cyan);border-color:var(--cyan)}@media (prefers-reduced-motion:reduce){*{transition:none!important}}.toolbar{border:1px solid var(--border);border-radius:var(--radius);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#111a2ebf;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 20px;margin-bottom:16px;padding:12px 14px;display:flex}.root-field{flex:260px;align-items:center;gap:10px;min-width:0;display:flex}.root-field label{color:var(--muted);white-space:nowrap;font-size:13px}.root-field input{border:1px solid var(--border);background:var(--panel-2);min-width:0;max-width:280px;font-family:var(--mono);border-radius:10px;outline:none;flex:1;padding:7px 12px;font-size:13px;transition:border-color .15s,box-shadow .15s}.root-field input:hover{border-color:var(--border-hi)}.root-field input:focus-visible{border-color:var(--cyan);box-shadow:0 0 0 3px #13b9fd2e}.chips{flex-wrap:wrap;gap:8px;display:flex}.chip{border:1px solid var(--border);background:var(--panel-2);color:var(--muted);cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:999px;align-items:center;gap:8px;padding:6px 12px;font-size:13px;line-height:18px;transition:color .15s,border-color .15s,background .15s;display:inline-flex;position:relative}.chip input{opacity:0;pointer-events:none;width:1px;height:1px;position:absolute}.chip-dot{border:1.5px solid;border-radius:50%;width:8px;height:8px;transition:background .15s,box-shadow .15s}.chip:hover{color:var(--text);border-color:var(--border-hi)}.chip:has(input:checked){color:var(--text);background:#13b9fd1a;border-color:#13b9fd8c}.chip:has(input:checked) .chip-dot{border-color:var(--cyan);background:var(--cyan);box-shadow:0 0 8px var(--cyan)}.chip:has(input:focus-visible){outline:2px solid var(--cyan);outline-offset:2px}.workspace{grid-template-columns:minmax(0,1fr);gap:16px;display:grid}@media (width>=900px){.workspace{grid-template-columns:minmax(0,1fr) minmax(0,1.2fr)}}.pane{border:1px solid var(--border);border-radius:var(--radius);background:var(--panel);flex-direction:column;min-width:0;transition:border-color .2s;display:flex;overflow:hidden;box-shadow:0 20px 50px -24px #0009}.pane:focus-within{border-color:var(--border-hi)}.pane-head{border-bottom:1px solid var(--border);background:var(--panel-2);flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:8px;padding:8px 10px 0;display:flex}.tab{border:1px solid var(--border);background:var(--panel);min-width:0;font-family:var(--mono);color:var(--text);text-overflow:ellipsis;white-space:nowrap;box-shadow:inset 0 2px 0 var(--cyan);border-bottom:0;border-radius:10px 10px 0 0;align-items:center;gap:8px;margin-bottom:-1px;padding:8px 14px;font-size:12.5px;display:inline-flex;overflow:hidden}.tab-icon{font-size:11px;font-weight:700}.tab-icon.json{color:#f5c46a}.tab-icon.dart{color:var(--cyan)}.actions{gap:8px;padding-bottom:8px;display:flex}.editor{height:380px;font-family:var(--mono);font-size:13px;line-height:20px;display:flex;position:relative}@media (width>=900px){.editor{height:620px}}.gutter{border-right:1px solid var(--border);background:var(--panel);color:#6f84aa;min-width:3.4em;font:inherit;text-align:right;-webkit-user-select:none;user-select:none;flex:none;padding:14px 10px 40px 12px;overflow:hidden}.editor-input{min-width:0;color:var(--text);font:inherit;white-space:pre;resize:none;caret-color:var(--cyan);tab-size:2;background:0 0;border:0;outline:none;flex:1;padding:14px 16px}.editor-output{outline:none;display:block;overflow:auto}.editor-output:focus-visible{box-shadow:inset 0 0 0 2px var(--cyan)}.editor-inner{width:max-content;min-width:100%;min-height:100%;display:flex}.editor-inner .gutter{z-index:1;position:sticky;left:0;overflow:visible}.dart{font:inherit;color:#d6e2f5;white-space:pre;tab-size:2;flex:1 0 auto;padding:14px 20px 14px 16px}.tk-kw{color:#d7a6ff}.tk-type{color:#4fd1ff}.tk-str{color:#a8e07a}.tk-num{color:#ffb27a}.tk-fn{color:#8fb4ff}.statusbar{border-top:1px solid var(--border);background:var(--panel-2);color:var(--muted);font-family:var(--mono);overflow-wrap:anywhere;padding:7px 14px;font-size:12px;line-height:16px}.statusbar.is-error{color:var(--danger)}.editor::-webkit-scrollbar{width:10px;height:10px}.editor-input::-webkit-scrollbar{width:10px;height:10px}.editor::-webkit-scrollbar-thumb{border:3px solid var(--panel);background:var(--border-hi);border-radius:999px}.editor-input::-webkit-scrollbar-thumb{border:3px solid var(--panel);background:var(--border-hi);border-radius:999px}.editor::-webkit-scrollbar-corner{background:0 0}.editor-input::-webkit-scrollbar-corner{background:0 0}