*{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#0a0b0f;--bg2:#11131a;--card:#161922;--card2:#1a1e28;--border:#232733;--border2:#2d3340;--text:#e8eaf0;--dim:#7a8190;--accent:#f39c12;--hover:#f5b041;--green:#2ecc71;--red:#ff3b3b;--blue:#4f8cff;--purple:#9b59b6;--r:16px}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;line-height:1.7;overflow-x:hidden}
.navbar{display:flex;justify-content:space-between;align-items:center;padding:.75rem 2rem;border-bottom:1px solid var(--border);position:sticky;top:0;background:rgba(10,11,15,.92);backdrop-filter:blur(12px);z-index:50}
.navbar .brand{font-weight:800;color:var(--text);text-decoration:none;font-size:1.05rem;display:flex;align-items:center;gap:.4rem}
.navbar .nav-links{display:flex;gap:1rem}
.navbar .nav-links a{color:var(--dim);text-decoration:none;font-size:.82rem;transition:color .2s;min-height:44px;display:inline-flex;align-items:center}
.navbar .nav-links a:hover,.navbar .nav-links a.active{color:var(--hover)}
main{max-width:1200px;margin:0 auto;padding:2.5rem 2rem 3rem}
h1{font-size:2.2rem;margin-bottom:.4rem;background:linear-gradient(135deg,#f39c12,#2ecc71);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.subtitle{color:var(--dim);font-size:1rem;margin-bottom:1.5rem}
h2{font-size:1.15rem;margin:1.5rem 0 .6rem;color:var(--hover)}
p{margin-bottom:.75rem}a{color:var(--hover)}

.editor-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1.5rem}
.editor-card{background:var(--card);border:1px solid var(--border2);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column}
.editor-header{display:flex;justify-content:space-between;align-items:center;padding:.6rem 1rem;border-bottom:1px solid var(--border2);background:var(--card2)}
.editor-header .label{font-size:.78rem;color:var(--dim);text-transform:uppercase;letter-spacing:.05em;font-weight:600}
.editor-header .stats{font-size:.72rem;color:var(--dim);font-family:monospace}
.editor-header .stats span{color:var(--accent);font-weight:700}
.editor-textarea{width:100%;background:var(--bg2);border:none;color:var(--text);font-family:"SF Mono",Monaco,"Courier New",monospace;font-size:.85rem;padding:1rem;resize:none;min-height:400px;line-height:1.6;outline:none;flex:1;tab-size:2}
.editor-textarea::placeholder{color:var(--border2)}
.editor-output{width:100%;background:var(--bg2);border:none;color:var(--text);font-family:"SF Mono",Monaco,"Courier New",monospace;font-size:.85rem;padding:1rem;overflow:auto;min-height:400px;max-height:600px;line-height:1.6;flex:1;white-space:pre}

.toolbar{background:var(--card);border:1px solid var(--border2);border-radius:var(--r);padding:.75rem 1rem;margin-bottom:1rem;display:flex;gap:.5rem;flex-wrap:wrap;align-items:center}
.btn{background:var(--bg2);border:1px solid var(--border2);color:var(--text);border-radius:8px;padding:.5rem 1rem;font-size:.82rem;font-weight:600;cursor:pointer;font-family:inherit;min-height:38px;transition:all .15s;display:flex;align-items:center;gap:.3rem}
.btn:hover{border-color:var(--accent);color:var(--hover)}
.btn-primary{background:linear-gradient(135deg,var(--accent),#e67e22);color:#000;border:none}
.btn-primary:hover{box-shadow:0 4px 14px rgba(243,156,18,.4)}
.btn-success{background:linear-gradient(135deg,var(--green),#27ae60);color:#fff;border:none}
.btn-success:hover{box-shadow:0 4px 14px rgba(46,204,113,.4)}
.btn-danger{background:var(--bg2);border:1px solid var(--red);color:var(--red)}
.btn-danger:hover{background:rgba(255,59,59,.1)}
.btn-divider{width:1px;height:24px;background:var(--border2);margin:0 .3rem}

.status-bar{display:flex;justify-content:space-between;align-items:center;padding:.6rem 1rem;background:var(--card);border:1px solid var(--border2);border-radius:10px;margin-bottom:1rem;font-size:.82rem}
.status-bar .status{display:flex;align-items:center;gap:.5rem}
.status-bar .valid{color:var(--green)}
.status-bar .invalid{color:var(--red)}
.status-bar .info{color:var(--dim)}
.status-bar .info span{color:var(--accent);font-weight:700}

.tree-view{background:var(--bg2);border:1px solid var(--border2);border-radius:10px;padding:1rem;max-height:400px;overflow:auto;font-family:"SF Mono",Monaco,monospace;font-size:.82rem;display:none}
.tree-view.show{display:block}
.tree-item{padding:.15rem 0;cursor:default}
.tree-key{color:var(--blue)}
.tree-string{color:var(--green)}
.tree-number{color:var(--accent)}
.tree-bool{color:var(--purple)}
.tree-null{color:var(--dim)}
.tree-toggle{cursor:pointer;color:var(--hover);user-select:none;width:16px;display:inline-block}
.tree-children{margin-left:1.5rem}

.path-display{background:var(--bg2);border:1px solid var(--border2);border-radius:8px;padding:.5rem .8rem;font-size:.78rem;color:var(--dim);margin-bottom:.5rem;font-family:monospace;min-height:34px;display:flex;align-items:center}
.path-display .key{color:var(--blue);cursor:pointer}
.path-display .key:hover{text-decoration:underline}

.stats-footer{text-align:center;margin:1.5rem 0;font-size:.78rem;color:var(--dim)}
.stats-footer strong{color:var(--hover);font-variant-numeric:tabular-nums}
.stat-divider{margin:0 .6rem;opacity:.4}
footer{text-align:center;padding:1.5rem 2rem;color:var(--dim);font-size:.75rem;border-top:1px solid var(--border)}
footer a{color:var(--hover);text-decoration:none}
.seo-section{color:var(--dim);font-size:.88rem;margin-top:2.5rem;line-height:1.8}
.seo-section h2{color:var(--text)}

@keyframes fade{0%{opacity:0}100%{opacity:1}}
@media(max-width:760px){main{padding:2rem 1rem 3rem}h1{font-size:1.6rem}.navbar{padding:.75rem 1rem}.navbar .nav-links{gap:.6rem}.editor-grid{grid-template-columns:1fr}.editor-textarea,.editor-output{min-height:250px}.toolbar{padding:.5rem}}