[hidden]{display:none!important}

:root{
  --bg:#0d1117;
  --bg-soft:#131a24;
  --panel:#161e2a;
  --panel-2:#1b2534;
  --line:#26324433;
  --line-solid:#263244;
  --ink:#e6edf6;
  --ink-dim:#8b98ab;
  --accent:#4fd1a5;
  --accent-ink:#06281d;
  --key:#7cc7ff;
  --str:#4fd1a5;
  --num:#f2b866;
  --bool:#c792ea;
  --nul:#8b98ab;
  --danger:#ff6b6b;
  --mono:'JetBrains Mono',ui-monospace,monospace;
  --sans:'Sora',system-ui,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{color-scheme:dark}
body{
  font-family:var(--sans);
  background:
    radial-gradient(900px 480px at 85% -10%, #1a2f4433 0%, transparent 60%),
    radial-gradient(700px 420px at -10% 20%, #12352a44 0%, transparent 60%),
    var(--bg);
  color:var(--ink);
  min-height:100vh;
  display:flex;flex-direction:column;
}

/* ---------- header ---------- */
.topbar{position:sticky;top:0;z-index:50;background:rgba(13,17,23,.75);backdrop-filter:blur(12px);border-bottom:1px solid var(--line-solid)}
.topbar-inner{max-width:1080px;margin:0 auto;height:66px;display:flex;align-items:center;justify-content:space-between;padding:0 24px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand-mark{font-family:var(--mono);font-weight:700;font-size:20px;color:var(--accent);background:#4fd1a51a;border:1px solid #4fd1a540;border-radius:10px;padding:4px 9px}
.brand-name{font-weight:800;font-size:18px;letter-spacing:-.02em}
.brand-name em{font-style:normal;color:var(--accent)}
.topnav{display:flex;align-items:center;gap:6px}
.navlink{background:none;border:0;color:var(--ink-dim);font:inherit;font-size:14px;font-weight:600;padding:8px 12px;border-radius:8px;cursor:pointer;transition:.15s}
.navlink:hover{color:var(--ink);background:#ffffff0d}

/* ---------- buttons ---------- */
.btn{font:inherit;font-size:14px;font-weight:700;border-radius:10px;padding:9px 16px;cursor:pointer;border:1px solid transparent;transition:transform .12s,box-shadow .12s,background .12s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-accent{background:var(--accent);color:var(--accent-ink);box-shadow:0 4px 18px #4fd1a533}
.btn-accent:hover{box-shadow:0 6px 24px #4fd1a555;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink-dim);border-color:var(--line-solid)}
.btn-ghost:hover{color:var(--ink);border-color:#3a4b63;background:#ffffff08}

/* ---------- shell / panels ---------- */
.shell{flex:1;width:100%;max-width:1080px;margin:0 auto;padding:36px 24px 60px}
.panel{background:var(--panel);border:1px solid var(--line-solid);border-radius:18px;padding:32px;box-shadow:0 20px 60px #00000055}

.panel-head h1{font-size:clamp(22px,3.4vw,30px);font-weight:800;letter-spacing:-.02em}
.panel-head .muted{color:var(--ink-dim);font-weight:600}
.panel-head .sub{color:var(--ink-dim);margin-top:8px;font-size:14.5px}

/* ---------- dropzone ---------- */
.dropzone{margin-top:26px;border:2px dashed #33455f;border-radius:14px;background:var(--bg-soft);padding:44px 24px;text-align:center;cursor:pointer;transition:.18s;color:var(--ink-dim);outline:none}
.dropzone:hover,.dropzone:focus-visible{border-color:var(--accent);color:var(--ink)}
.dropzone.dragover{border-color:var(--accent);background:#4fd1a512;transform:scale(1.008);color:var(--ink)}
.dz-icon{color:var(--accent);margin-bottom:12px}
.dz-title{font-weight:600;font-size:16px}
.dz-title code{font-family:var(--mono);background:#ffffff0f;padding:2px 6px;border-radius:6px;font-size:13.5px}
.dz-sub{margin-top:6px;font-size:14px}
.dz-link{color:var(--accent);font-weight:700;text-decoration:underline;text-underline-offset:3px}

/* ---------- divider ---------- */
.or-divider{display:flex;align-items:center;gap:14px;margin:26px 0 16px;color:var(--ink-dim);font-size:12.5px;font-weight:700;text-transform:uppercase;letter-spacing:.12em}
.or-divider::before,.or-divider::after{content:"";flex:1;height:1px;background:var(--line-solid)}

/* ---------- paste ---------- */
#pasteArea{width:100%;min-height:170px;resize:vertical;background:var(--bg-soft);border:1px solid var(--line-solid);border-radius:12px;color:var(--ink);font-family:var(--mono);font-size:13.5px;line-height:1.6;padding:16px;transition:border-color .15s}
#pasteArea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #4fd1a522}
#pasteArea::placeholder{color:#54637a}
.paste-actions{margin-top:14px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.hint{color:var(--ink-dim);font-size:13px}

/* ---------- error ---------- */
.error-box{margin-top:20px;background:#ff6b6b12;border:1px solid #ff6b6b55;border-radius:12px;padding:16px 18px;animation:pop .18s ease}
.error-head{display:flex;justify-content:space-between;align-items:center;color:var(--danger);font-size:15px}
.error-close{background:none;border:0;color:var(--danger);cursor:pointer;font-size:14px;padding:4px 8px;border-radius:6px}
.error-close:hover{background:#ff6b6b22}
.error-box p{margin-top:8px;color:#ffb3b3;font-size:14px}
#errorContext{margin-top:12px;font-family:var(--mono);font-size:12.5px;line-height:1.55;background:#00000040;border-radius:8px;padding:12px 14px;overflow-x:auto;color:#ffd9d9;white-space:pre}
@keyframes pop{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- viewer ---------- */
.viewer-panel{padding:0;overflow:hidden}
.viewer-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:16px 20px;border-bottom:1px solid var(--line-solid);background:var(--panel-2)}
.vt-left,.vt-right{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.file-chip,.stat-chip{font-family:var(--mono);font-size:12px;color:var(--ink-dim);background:#ffffff0a;border:1px solid var(--line-solid);border-radius:99px;padding:5px 12px}
.file-chip{color:var(--accent);border-color:#4fd1a540}

.seg{display:flex;background:var(--bg-soft);border:1px solid var(--line-solid);border-radius:10px;padding:3px}
.seg-btn{font:inherit;font-size:13px;font-weight:700;color:var(--ink-dim);background:none;border:0;border-radius:8px;padding:6px 14px;cursor:pointer;transition:.15s}
.seg-btn.is-active{background:var(--accent);color:var(--accent-ink)}

.searchbar{display:flex;align-items:center;gap:10px;padding:12px 20px;border-bottom:1px solid var(--line-solid);color:var(--ink-dim)}
#searchInput{flex:1;background:none;border:0;color:var(--ink);font:inherit;font-size:14px;outline:none}
#searchInput::placeholder{color:#54637a}
.search-count{font-family:var(--mono);font-size:12px;color:var(--ink-dim)}

.viewer-body{max-height:68vh;overflow:auto;background:var(--bg-soft)}

/* ---------- text view ---------- */
.text-view{font-family:var(--mono);font-size:13px;line-height:1.65;padding:22px 26px;white-space:pre;color:#c9d6e8}

/* ---------- tree ---------- */
.tree-view{font-family:var(--mono);font-size:13.5px;line-height:1.5;padding:18px 20px 26px}
.node{position:relative}
.node .children{margin-left:14px;padding-left:14px;border-left:1px solid var(--line);}

.row{display:flex;align-items:flex-start;gap:2px;padding:3px 6px;border-radius:7px;min-height:26px;transition:background .12s}
.row:hover{background:#ffffff08}
.row:hover .copy-btn{opacity:1}

.toggle{flex:0 0 18px;width:18px;height:20px;background:none;border:0;color:var(--ink-dim);cursor:pointer;font-size:10px;padding:0;margin-top:3px;transition:transform .15s,color .12s;line-height:1}
.toggle:hover{color:var(--accent)}
.toggle::before{content:"▶";display:inline-block;transition:transform .15s}
.node.open > .row .toggle::before{transform:rotate(90deg)}
.toggle-spacer{flex:0 0 18px}

.row-main{flex:1;min-width:0;word-break:break-word;padding-top:2px}
.k{color:var(--key);font-weight:500}
.k.idx{color:#5f7391;font-weight:400}
.colon{color:var(--ink-dim);margin:0 6px 0 2px}
.v-str{color:var(--str)}
.v-num{color:var(--num)}
.v-bool{color:var(--bool);font-weight:700}
.v-null{color:var(--nul);font-style:italic}
.bracket{color:var(--ink-dim)}
.count-badge{color:#54637a;font-size:11.5px;margin-left:8px;user-select:none}
.preview{color:#54637a;margin-left:6px;user-select:none;font-size:12.5px}
.node.open > .row .preview{display:none}
.node:not(.open) > .children{display:none}

.copy-btn{flex:0 0 auto;opacity:0;background:#ffffff0d;border:1px solid var(--line-solid);color:var(--ink-dim);border-radius:7px;font-family:var(--sans);font-size:11px;font-weight:700;padding:3px 9px;cursor:pointer;margin-left:8px;margin-top:1px;transition:.15s;white-space:nowrap}
.copy-btn:hover{color:var(--accent-ink);background:var(--accent);border-color:var(--accent)}
.copy-btn.copied{opacity:1;color:var(--accent-ink);background:var(--accent);border-color:var(--accent)}

.row.search-hit > .row-main .hit{background:#f2b86633;color:#ffd79a;border-radius:3px;padding:0 1px}
.node.search-dim > .row{opacity:.32}

/* ---------- toast ---------- */
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);z-index:100;background:var(--accent);color:var(--accent-ink);font-weight:700;font-size:14px;padding:11px 22px;border-radius:99px;box-shadow:0 10px 34px #00000066;animation:toastIn .2s ease}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,10px)}to{opacity:1;transform:translate(-50%,0)}}

.foot{text-align:center;color:#54637a;font-size:12.5px;padding:22px 16px 30px}

/* ---------- responsive ---------- */
@media (max-width:640px){
  .topbar-inner{padding:0 16px}
  .brand-name{display:none}
  .shell{padding:20px 12px 40px}
  .panel{padding:20px 16px;border-radius:14px}
  .viewer-toolbar{padding:12px 14px}
  .copy-btn{opacity:1}
  .viewer-body{max-height:none}
  .tree-view{padding:12px 8px 20px;font-size:12.5px}
  .node .children{margin-left:8px;padding-left:10px}
}