:root{
  --bg:#f7f7fb;
  --card:#ffffff;
  --muted:#6b6b75;
  --accent:#1a73e8;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,'Noto Sans KR',sans-serif;
  background:var(--bg);
  color:#111;
  display:flex;
  flex-direction:column;
  min-height:100vh;
}
.header{padding:16px 16px 8px}
.header h1{margin:0;font-size:1.1rem}
.title-strong{font-size:2.2rem;font-weight:800;letter-spacing:-0.5px;line-height:1}
#mainTitle{font-size:2.2rem;font-weight:800;letter-spacing:-0.5px;line-height:1}
.ad{width:120px;background:linear-gradient(180deg,#fafafa,#f2f2f6);border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:0.9rem}
.ad{font-weight:700;color:#4b4b59}
.subtitle{margin:6px 0 0;color:var(--muted);font-size:0.9rem}
.main{flex:1;display:flex;padding:12px}
.container{display:flex;align-items:stretch;gap:12px;padding:0 12px}
.ad{width:120px;background:linear-gradient(180deg,#fafafa,#f2f2f6);border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:0.9rem}
.ad-left{order:0}
.ad-right{order:2}
.main{flex:1;display:flex;flex-direction:column;padding:12px 0}
.content{max-width:100%;display:flex;flex-direction:column;height:100%}
textarea#inputText{
  width:100%;
  flex:1 1 auto;
  resize:vertical;
  border-radius:12px;
  border:1px solid rgba(0,0,0,0.06);
  padding:14px;
  font-size:1rem;
  line-height:1.5;
  background:linear-gradient(180deg, #fff, #fbfbff);
  box-shadow:0 1px 2px rgba(16,24,40,0.03) inset;
  min-height:360px;
  max-height:calc(100vh - 220px);
  overflow:auto;
}
.footer{padding:10px 12px 20px;background:transparent}
.count-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.card{background:var(--card);padding:10px;border-radius:10px;box-shadow:0 6px 18px rgba(18,38,63,0.04)}
.label{font-size:0.85rem;color:var(--muted)}
.value{font-weight:600;margin-top:6px;font-size:1.05rem}
.controls{margin-top:10px;display:flex;justify-content:flex-end;gap:8px}
.btn{background:transparent;border:1px solid rgba(0,0,0,0.08);padding:8px 12px;border-radius:8px;font-size:0.95rem}
.btn.primary{background:var(--accent);color:#fff;border-color:transparent}

@media (max-width:600px){
  .header h1{font-size:1rem}
  .subtitle{font-size:0.85rem}
  .count-grid{grid-template-columns:repeat(1,1fr)}
  .controls{justify-content:space-between}
  .ad{display:none}
  .title-strong{font-size:1.6rem}
  #mainTitle{font-size:1.6rem}
}

@media (orientation:landscape) and (max-height:420px){
  .main{padding:8px}
  textarea#inputText{min-height:140px}
  .count-grid{grid-template-columns:repeat(3,1fr);gap:8px}
}

/* safe area padding for mobile */
body{padding-bottom:env(safe-area-inset-bottom)}