:root{
  --bg:#0f1115; --panel:#171a21; --panel2:#1d212b; --line:#2a2f3a;
  --ink:#e7eaf0; --muted:#8b93a4; --accent:#4f8cff; --accent2:#7c5cff;
  --good:#37d39b; --warn:#ffb454; --danger:#ff6b6b;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans)}
body{max-width:1180px;margin:0 auto;padding:0 20px 60px}

.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 0 18px}
.brand{display:flex;align-items:center;gap:12px}
.logo{font-size:26px;filter:drop-shadow(0 0 8px var(--accent))}
.name{font-size:20px;font-weight:700;letter-spacing:.2px}
.tag{font-size:12.5px;color:var(--muted)}
.privacy{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--good);
  background:rgba(55,211,155,.08);border:1px solid rgba(55,211,155,.25);padding:7px 12px;border-radius:999px}
.privacy .dot{width:8px;height:8px;border-radius:50%;background:var(--good);box-shadow:0 0 8px var(--good)}

.controls{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin-bottom:16px}
.detectors{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;padding:6px 11px;border-radius:999px;
  border:1px solid var(--line);background:var(--panel2);color:var(--muted);cursor:pointer;user-select:none;transition:.12s}
.chip:hover{border-color:#3a4150}
.chip.on{color:var(--ink);border-color:var(--accent);background:rgba(79,140,255,.12)}
.chip .cnt{font-family:var(--mono);font-size:11px;background:rgba(255,255,255,.08);padding:1px 6px;border-radius:8px;min-width:18px;text-align:center}
.chip.on .cnt{background:var(--accent);color:#fff}
.modes{display:flex;gap:16px;flex-wrap:wrap}
.radio{font-size:13px;color:var(--ink);display:flex;align-items:center;gap:7px;cursor:pointer}
.radio small{color:var(--muted)}

.panes{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pane{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px;display:flex;flex-direction:column;min-height:340px}
.pane-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
.pane-head h2{font-size:14px;margin:0;font-weight:650}
.pane-head small{color:var(--muted);font-weight:400}
.pane-actions{display:flex;gap:8px}
textarea{width:100%;flex:1;resize:vertical;min-height:240px;background:var(--panel2);color:var(--ink);
  border:1px solid var(--line);border-radius:10px;padding:12px;font-family:var(--mono);font-size:13px;line-height:1.55;outline:none}
textarea:focus{border-color:var(--accent)}
textarea.drag{border-color:var(--accent2);background:rgba(124,92,255,.08);box-shadow:0 0 0 2px rgba(124,92,255,.25) inset}
#output,#restored{color:#d7ffe9}

/* Highlight overlay: a backdrop of coloured <mark>s behind a transparent textarea. */
.hl-wrap{position:relative;flex:1;min-height:240px;background:var(--panel2);
  border:1px solid var(--line);border-radius:10px;overflow:hidden}
.hl-wrap:focus-within{border-color:var(--accent)}
#highlights,.hl-wrap #input{position:absolute;inset:0;margin:0;width:100%;height:100%;
  padding:12px;border:0;border-radius:0;background:transparent;
  font-family:var(--mono);font-size:13px;line-height:1.55;
  white-space:pre-wrap;overflow-wrap:break-word;word-break:break-word;overflow:auto}
#highlights{color:transparent;pointer-events:none}
.hl-wrap #input{color:var(--ink);resize:none;outline:none;z-index:1}
.hl-wrap #input.drag{box-shadow:0 0 0 2px rgba(124,92,255,.5) inset}
.hl{color:transparent;border-radius:3px}
.hl-red{background:rgba(255,107,107,.34)}
.hl-amber{background:rgba(255,180,84,.34)}
.hl-blue{background:rgba(79,140,255,.34)}
.hl-purple{background:rgba(124,92,255,.36)}
.hl-teal{background:rgba(55,211,155,.32)}
.hl-pink{background:rgba(255,110,199,.34)}
.sw{display:inline-block;width:9px;height:9px;border-radius:3px;flex:0 0 auto}
.sw-red{background:#ff6b6b}.sw-amber{background:#ffb454}.sw-blue{background:#4f8cff}
.sw-purple{background:#7c5cff}.sw-teal{background:#37d39b}.sw-pink{background:#ff6ec7}

.allowrow,.customrow{display:flex;flex-direction:column;gap:5px;flex:1 1 100%;margin-top:2px}
.allowrow label,.customrow label{font-size:12px;color:var(--muted)}
.customrow code{font-family:var(--mono);font-size:11px;color:var(--ink)}
#allow,#custom{background:var(--panel2);border:1px solid var(--line);border-radius:9px;padding:8px 11px;
  color:var(--ink);font-size:12.5px;outline:none}
#allow{font-family:var(--sans)}
#custom{font-family:var(--mono);resize:vertical;min-height:0;line-height:1.5}
#allow:focus,#custom:focus{border-color:var(--accent)}
.customerr{font-size:11.5px;color:var(--danger);min-height:14px}

button,.filebtn{font-family:var(--sans);font-size:12.5px;padding:7px 13px;border-radius:9px;cursor:pointer;border:1px solid var(--line);transition:.12s}
.ghost{background:var(--panel2);color:var(--ink)}
.ghost:hover{border-color:#3a4150}
.primary{background:linear-gradient(180deg,var(--accent),#3f76e0);color:#fff;border-color:transparent;font-weight:600}
.primary:hover{filter:brightness(1.07)}
.filebtn{display:inline-flex;align-items:center}

.stats{margin-top:10px;font-size:12.5px;color:var(--muted);min-height:20px}
.stats b{color:var(--good)}

.restore{margin-top:16px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px}
.restore-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.restore textarea{min-height:150px}
.maphint{margin:10px 2px 0;font-size:11.5px;color:var(--muted)}

footer{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:26px;color:var(--muted);font-size:12px}
footer a{color:var(--accent)}
footer code{font-family:var(--mono)}

@media(max-width:820px){
  .panes,.restore-grid{grid-template-columns:1fr}
}