*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0d1117;
  --surface:#161b22;
  --surface-2:#21262d;
  --border:#30363d;
  --text:#e6edf3;
  --text-2:#8b949e;
  --accent:#58a6ff;
  --accent-hover:#79c0ff;
  --success:#3fb950;
  --radius:12px;
  --radius-sm:8px;
}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Noto Sans',Ubuntu,sans-serif;
  background:var(--bg);
  color:var(--text);
  min-height:100vh;
  overflow-x:hidden;
  display:flex;
  justify-content:center;
  padding:2rem 1rem;
  line-height:1.5;
}
.container{max-width:640px;width:100%}

/* Header */
header{margin-bottom:2rem;text-align:center}
header h1{font-size:1.5rem;font-weight:600;display:flex;align-items:center;justify-content:center;gap:.5rem}
header p{color:var(--text-2);font-size:.875rem;margin-top:.25rem}
.lang-switch{position:fixed;top:1rem;right:1rem;display:flex;gap:.25rem;z-index:50;flex-wrap:wrap;max-width:160px;justify-content:flex-end}
.lang-btn{
  padding:.25rem .6rem;font-size:.7rem;font-weight:600;
  background:transparent;border:1px solid var(--border);border-radius:4px;
  color:var(--text-2);cursor:pointer;transition:all .15s;text-transform:uppercase;letter-spacing:.04em;
}
.lang-btn:hover{border-color:var(--accent);color:var(--text)}
.lang-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}

/* Cards */
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:1.5rem;
  margin-bottom:1rem;
}
.card-title{
  font-size:.75rem;
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:.05em;
  color:var(--text-2);
  margin-bottom:1rem;
}

/* Input */
.domain-input{
  width:100%;
  padding:.75rem 1rem;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  color:var(--text);
  font-size:1rem;
  outline:none;
  transition:border-color .2s;
}
.domain-input:focus{border-color:var(--accent)}
.domain-input::placeholder{color:var(--text-2)}

/* Options */
.option-group{display:flex;flex-direction:column;gap:.375rem}
.option-group+.option-group{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border)}
.option-label{
  display:flex;align-items:center;gap:.75rem;
  padding:.5rem .75rem;
  border-radius:var(--radius-sm);
  cursor:pointer;user-select:none;
  transition:background .15s;
  position:relative;
}
.option-label:hover{background:var(--surface-2)}
.option-label input{appearance:none;width:1.25rem;height:1.25rem;border:2px solid var(--text-2);flex-shrink:0;position:relative;cursor:pointer;transition:all .15s}
.option-label input[type=radio]{border-radius:50%}
.option-label input[type=checkbox]{border-radius:4px}
.option-label input:checked{border-color:var(--accent);background:var(--accent)}
.option-label input[type=radio]:checked::after{content:'';position:absolute;inset:3px;background:#fff;border-radius:50%}
.option-label input[type=checkbox]:checked::after{content:'✓';position:absolute;inset:-1px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:.8rem;font-weight:700}
.label-text{font-size:.9rem}
.label-desc{font-size:.75rem;color:var(--text-2);margin-left:auto;font-family:'JetBrains Mono','Fira Code',monospace}

/* Tooltips */
.option-label::after{
  content:attr(data-tip);
  position:absolute;top:calc(100% + 6px);left:0;z-index:20;
  background:#1c2333;border:1px solid var(--border);border-radius:6px;
  padding:.5rem .75rem;max-width:320px;width:max-content;
  font-size:.75rem;line-height:1.45;font-weight:400;text-transform:none;letter-spacing:normal;
  color:var(--text);
  opacity:0;pointer-events:none;transition:opacity .15s;
}
.option-label:hover::after{opacity:1}

/* Comment */
.comment-section{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border);transition:opacity .2s,max-height .2s;overflow:hidden;max-height:200px;opacity:1}
.comment-section.hidden{max-height:0;padding-top:0;margin-top:0;opacity:0;pointer-events:none}
.comment-input{
  width:100%;padding:.75rem 1rem;
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);
  color:var(--text);font-size:.9rem;outline:none;transition:border-color .2s;
  resize:vertical;min-height:60px;font-family:inherit;
}
.comment-input:focus{border-color:var(--accent)}
.comment-input::placeholder{color:var(--text-2)}

/* Output */
.output-section{margin-top:0}
.output-block{margin-bottom:1rem}
.output-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}
.output-label{font-size:.75rem;font-weight:600;color:var(--text-2);text-transform:uppercase;letter-spacing:.05em;display:flex;align-items:center;gap:.375rem;flex-wrap:wrap}
.badge{font-size:.625rem;padding:.125rem .375rem;border-radius:4px;font-weight:500;text-transform:none;letter-spacing:0}
.badge-adguard{background:rgba(88,166,255,.15);color:var(--accent)}
.badge-pihole{background:rgba(63,185,80,.15);color:var(--success)}
.copy-btn{
  display:inline-flex;align-items:center;gap:.375rem;
  padding:.375rem .75rem;background:transparent;
  border:1px solid var(--border);border-radius:6px;
  color:var(--text-2);font-size:.8rem;cursor:pointer;transition:all .15s;
}
.copy-btn:hover{border-color:var(--text-2);color:var(--text)}
.copy-btn.copied{border-color:var(--accent);color:var(--accent)}
.output-code{
  background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:1rem;font-family:'JetBrains Mono','Fira Code','Cascadia Code',monospace;
  font-size:.875rem;line-height:1.6;overflow-x:auto;white-space:pre-wrap;word-break:break-all;min-height:44px;
  transition:border-color .3s;
}
.output-code.highlight{border-color:var(--accent)}
.output-code.empty{color:var(--text-2);font-style:italic}

/* Copy all */
.copy-all-btn{
  display:flex;align-items:center;justify-content:center;gap:.5rem;
  width:100%;padding:.75rem;background:var(--accent);border:none;border-radius:var(--radius-sm);
  color:#fff;font-size:.9rem;font-weight:600;cursor:pointer;transition:background .2s;
}
.copy-all-btn:hover{background:var(--accent-hover)}
.copy-all-btn.copied{background:var(--success)}

/* Clear */
.clear-btn{
  display:inline-flex;align-items:center;gap:.375rem;
  padding:.375rem .75rem;background:transparent;border:1px solid var(--border);border-radius:6px;
  color:var(--text-2);font-size:.8rem;cursor:pointer;transition:all .15s;margin-left:.5rem;
}
.clear-btn:hover{border-color:var(--danger);color:var(--danger)}

/* Toast */
.toast{
  position:fixed;bottom:2rem;left:50%;transform:translateX(-50%) translateY(100px);
  background:var(--success);color:#fff;padding:.75rem 1.5rem;border-radius:var(--radius-sm);
  font-size:.875rem;font-weight:500;opacity:0;transition:all .3s ease;pointer-events:none;z-index:100;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* Ads */
.ad-banner{
  background:var(--surface);border:1px dashed var(--border);
  padding:1.5rem 0;margin-bottom:1rem;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-height:90px;position:relative;
  width:100vw;margin-left:calc(-50vw + 50%);
}
.ad-banner::before{
  content:'';position:absolute;inset:0;
  background:repeating-linear-gradient(45deg,transparent,transparent 8px,rgba(48,54,61,.2) 8px,rgba(48,54,61,.2) 16px);
  pointer-events:none;
}
.ads-row{
  display:flex;gap:1rem;margin-bottom:1rem;
}
.ad-block{
  flex:1;background:var(--surface);border:1px dashed var(--border);
  border-radius:var(--radius);padding:1rem;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-height:180px;position:relative;overflow:hidden;
}
.ad-block::before{
  content:'';position:absolute;inset:0;
  background:repeating-linear-gradient(45deg,transparent,transparent 8px,rgba(48,54,61,.2) 8px,rgba(48,54,61,.2) 16px);
  pointer-events:none;
}
.ad-label{
  font-size:.625rem;text-transform:uppercase;letter-spacing:.08em;
  color:var(--text-2);margin-bottom:.5rem;position:relative;z-index:1;
}
.ad-banner-wrap{
  background:var(--surface);border:1px dashed var(--border);margin-bottom:1rem;
  min-height:90px;display:flex;align-items:center;justify-content:center;
  width:100vw;margin-left:calc(-50vw + 50%);padding:.5rem 0;
}
.ad-placeholder{
  font-size:1rem;font-weight:500;color:var(--text-2);position:relative;z-index:1;
}

/* Footer */
footer{text-align:center;padding:2rem 0;color:var(--text-2);font-size:.75rem}
footer a{color:var(--accent);text-decoration:none}
footer a:hover{text-decoration:underline}

@media(max-width:768px){
  .lang-switch{position:relative;top:auto;right:auto;justify-content:center;margin-top:.75rem;max-width:none}
}

@media(max-width:480px){
  body{padding:1rem .5rem}
  .card{padding:1rem}
  header h1{font-size:1.25rem}
  .output-header{flex-wrap:wrap;gap:.5rem}
  .ad-banner-wrap{width:auto;margin-left:0;min-height:auto}
  .ads-row{flex-direction:column}
  .ad-block{min-height:auto;padding:.75rem}
}