:root {
  --bg: #0a0c12;
  --bg-2: #0e1220;
  --card: rgba(255,255,255,0.035);
  --card-h: rgba(255,255,255,0.06);
  --border: rgba(255,255,255,0.09);
  --border-s: rgba(255,255,255,0.16);
  --text: #e6ecf5;
  --muted: #7b8699;
  --dim: #4e5666;
  --accent: #7df9ff;
  --accent-2: #b389ff;
  --good: #34d399;
  --warn: #f59e0b;
  --bad: #ef4444;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.55 -apple-system, "Segoe UI", "Inter", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}
.bg {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(900px 600px at 80% -10%, rgba(125, 249, 255, 0.10), transparent 60%),
    radial-gradient(800px 500px at -5% 30%, rgba(179, 137, 255, 0.10), transparent 60%),
    radial-gradient(700px 400px at 50% 100%, rgba(125, 249, 255, 0.06), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}
.bg::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at top, black 25%, transparent 80%);
}

code, .mono { font-family: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace; font-size: 12.5px; }

.hero {
  max-width: 1280px;
  margin: 0 auto;
  padding: 56px 28px 28px;
}
.brand {
  color: var(--accent);
  font: 700 11px/1 "JetBrains Mono", monospace;
  letter-spacing: 0.22em;
  margin-bottom: 18px;
}
h1 {
  font-size: 38px;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  background: linear-gradient(180deg, #fff 0%, #b3becc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede {
  color: var(--muted);
  font-size: 15.5px;
  max-width: 720px;
  margin: 0 0 28px;
}

.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 28px; }
.actions button {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 16px;
  border-radius: 8px;
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
}
.actions button:hover {
  background: var(--card-h);
  border-color: var(--border-s);
}
.actions button:active { transform: translateY(1px); }

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.stat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  backdrop-filter: blur(12px);
}
.k {
  color: var(--muted);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.v {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}
.v.small { font-size: 12px; font-weight: 500; word-break: break-all; }

main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 8px 28px 60px;
}
.search-bar {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
}
#search {
  flex: 1;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 8px;
  font: inherit;
  outline: none;
}
#search:focus { border-color: var(--accent); background: var(--card-h); }
.search-bar button {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 8px;
  font: inherit;
  font-size: 12.5px;
  cursor: pointer;
}
.search-bar button:hover { background: var(--card-h); }

.tree {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  font-family: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  font-size: 12.5px;
  line-height: 1.7;
  overflow-x: auto;
}
.node { display: block; }
.node-key { color: var(--accent); cursor: pointer; }
.node-key.exp::before { content: "▾ "; color: var(--muted); }
.node-key.col::before { content: "▸ "; color: var(--muted); }
.node-val { color: var(--text); }
.node-val.string { color: #b3e5b3; }
.node-val.number { color: #ffdd99; }
.node-val.bool   { color: #ffb3d9; }
.node-val.null   { color: var(--dim); font-style: italic; }
.node-val.error  { color: var(--bad); }
.node-children { padding-left: 22px; border-left: 1px dashed rgba(255,255,255,0.06); margin-left: 6px; }
.collapsed > .node-children { display: none; }

.search-hit { background: rgba(125,249,255,0.12); border-radius: 3px; }
.search-no-hit { opacity: 0.25; }

footer {
  text-align: center;
  padding: 28px 24px 48px;
  color: var(--dim);
  font-size: 12.5px;
  max-width: 900px;
  margin: 0 auto;
}
footer code {
  color: var(--muted);
  background: rgba(255,255,255,0.04);
  padding: 1px 6px;
  border-radius: 4px;
}

@media (max-width: 720px) {
  h1 { font-size: 28px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .hero { padding: 32px 18px; }
  main { padding: 8px 18px 60px; }
}