.tools-layout{display:grid;grid-template-columns:236px 1fr;gap:22px;align-items:start;padding-top:22px}
.tools-side{position:sticky;top:78px;border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));padding:14px;max-height:calc(100vh - 100px);overflow-y:auto}
.tools-side input{margin-bottom:12px}
.nav-cat{font-size:11.5px;color:var(--muted);letter-spacing:1px;margin:14px 0 6px;padding-left:6px}
.nav-cat:first-child{margin-top:0}
.nav-item{display:block;padding:6px 10px;border-radius:8px;font-size:13.5px;color:#c3d0e6;cursor:pointer;text-decoration:none;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-item:hover{background:rgba(255,255,255,.06);text-decoration:none;color:#fff}
.nav-item.active{background:linear-gradient(135deg,rgba(34,211,238,.22),rgba(167,139,250,.18));color:#fff;font-weight:600}
.tools-main{min-width:0}

.t-desc{color:var(--muted);font-size:13.5px;margin:0 0 16px;padding-bottom:14px;border-bottom:1px dashed var(--line)}
.t-form{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin-bottom:16px}
.t-form .full{grid-column:1/-1}
.t-btns{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.t-btn{padding:9px 20px;border-radius:9px;border:0;cursor:pointer;font-size:14px;font-weight:600;color:#04121f;
  background:linear-gradient(135deg,var(--cyan),var(--blue));transition:filter .15s,transform .15s}
.t-btn:hover{filter:brightness(1.1);transform:translateY(-1px)}
.t-btn.sec{background:transparent;border:1px solid var(--line);color:var(--muted);font-weight:400}
.t-btn.sec:hover{color:var(--text);border-color:rgba(255,255,255,.3)}
.t-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

.t-out{border:1px solid var(--line);border-radius:12px;background:rgba(0,0,0,.28);padding:14px 16px;
  font-family:ui-monospace,Consolas,Menlo,monospace;font-size:13px;line-height:1.75;white-space:pre-wrap;word-break:break-all;min-height:52px}
.t-out.empty{color:var(--muted);font-family:inherit}
.t-out .k{color:var(--muted)}
.t-out .v{color:var(--text)}
.t-err{color:var(--danger)}
.t-ok{color:var(--ok)}

.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 18px;font-size:13.5px;line-height:1.8}
.kv dt{color:var(--muted);white-space:nowrap}
.kv dd{margin:0;word-break:break-all;font-family:ui-monospace,Consolas,Menlo,monospace}

.copy-row{display:flex;gap:8px;align-items:flex-start;margin-top:10px}
.copy-row .t-out{flex:1}

.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.chip{padding:5px 13px;border-radius:20px;border:1px solid var(--line);background:rgba(255,255,255,.04);
  font-size:12.5px;cursor:pointer;color:var(--muted)}
.chip:hover{color:var(--text)}
.chip.on{background:linear-gradient(135deg,rgba(34,211,238,.25),rgba(56,189,248,.18));border-color:rgba(56,189,248,.5);color:#fff}

.home-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(158px,1fr));gap:12px}
.home-card{display:block;padding:14px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.03);
  text-decoration:none;color:var(--text);transition:transform .15s,border-color .15s,background .15s}
.home-card:hover{transform:translateY(-2px);border-color:rgba(56,189,248,.5);background:rgba(56,189,248,.08);text-decoration:none}
.home-card .ic{font-size:20px}
.home-card .nm{font-size:13.5px;font-weight:600;margin-top:6px}
.home-card .ds{font-size:11.5px;color:var(--muted);margin-top:3px;line-height:1.5}

.mini-tbl{width:100%;border-collapse:collapse;font-size:13px}
.mini-tbl th,.mini-tbl td{padding:7px 10px;border-bottom:1px solid var(--line);text-align:left}
.mini-tbl th{color:var(--muted);font-weight:500;position:sticky;top:0;background:#0b1322}
.mini-tbl td:first-child{font-family:ui-monospace,Consolas,monospace;color:var(--blue);white-space:nowrap}
.scroll-box{max-height:460px;overflow:auto;border:1px solid var(--line);border-radius:12px}

.qr-wrap{display:flex;gap:20px;flex-wrap:wrap;align-items:flex-start}
.qr-box{background:#fff;padding:10px;border-radius:12px;line-height:0}
.qr-box svg{max-width:280px;height:auto}
.color-preview{height:56px;border-radius:10px;border:1px solid var(--line);margin-top:10px}
.hl{background:rgba(56,189,248,.32);border-radius:3px;padding:0 1px}

@media (max-width:860px){
  .tools-layout{grid-template-columns:1fr}
  .tools-side{position:static;max-height:none}
  #toolNav{display:flex;flex-wrap:wrap;gap:6px}
  .nav-cat{width:100%;margin:8px 0 2px}
  .nav-item{padding:5px 12px;border:1px solid var(--line);border-radius:16px;font-size:12.5px}
}