:root{
  --bg:#0b1220;
  --panel:#101a2e;
  --text:#e7eefc;
  --muted:#a9b7d4;
  --border: rgba(255,255,255,.12);
  --accent:#7aa2ff;
}

*{ box-sizing:border-box; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: radial-gradient(1200px 600px at 20% 0%, #162447 0%, var(--bg) 60%);
  color: var(--text);
}

.wrap{ max-width: 980px; margin: 32px auto; padding: 0 16px; }
.header h1{ margin:0 0 8px; font-size: 28px; }
.header p{ margin:0 0 18px; color: var(--muted); }

.panel{
  background: color-mix(in srgb, var(--panel) 90%, black);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}

.label{ display:block; margin: 6px 0 8px; color: var(--muted); }
textarea{
  width:100%;
  min-height: 220px;
  resize: vertical;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  outline: none;
  background: rgba(255,255,255,.03);
  color: var(--text);
  line-height: 1.5;
  font-size: 15px;
}

.controls{
  margin-top: 12px;
  display:flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  align-items:center;
}

.check{
  display:flex;
  gap: 8px;
  align-items:center;
  color: var(--muted);
}

.select{
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:auto;
}

.label-inline{ color: var(--muted); }

select, button{
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.05);
  color: var(--text);
  padding: 10px 12px;
}

button{
  cursor:pointer;
}
button:hover{ border-color: rgba(255,255,255,.25); }
#btnClear{ margin-left: 6px; }
#btnCopy{ border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); }

.stats{
  margin-top: 14px;
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.stat{
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  background: rgba(255,255,255,.03);
}

.statLabel{ color: var(--muted); font-size: 12px; }
.statValue{ font-size: 22px; margin-top: 6px; }

.hint{
  margin: 14px 2px 0;
  color: var(--muted);
  font-size: 13px;
}

@media (max-width: 720px){
  .stats{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .select{ width:100%; margin-left: 0; }
  select{ width:100%; }
}