:root{
  --bg:#ffffff;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#475569;
  --line:#e2e8f0;
  --soft:#f1f5f9;
  --primary:#2563eb;
  --primary2:#1d4ed8;
}

*{box-sizing:border-box}

body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,"Noto Sans KR",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
}

.wrap{max-width:1020px;margin:0 auto;padding:24px}

header{display:flex;gap:14px;align-items:flex-start;justify-content:space-between;flex-wrap:wrap}
.brand{font-size:28px;margin:0 0 8px}
.sub{color:var(--muted);margin:0;line-height:1.5}

.pill{
  display:inline-block;padding:6px 10px;border:1px solid var(--line);
  border-radius:999px;color:var(--muted);font-size:12px;background:var(--soft)
}

.tabs{margin-top:14px;display:flex;gap:10px;flex-wrap:wrap}
.tab{
  background:var(--soft);
  border:1px solid var(--line);
  color:var(--text);
  padding:10px 12px;border-radius:999px;cursor:pointer;font-weight:800
}
.tab[aria-selected="true"]{
  background:rgba(37,99,235,.12);
  border-color:rgba(37,99,235,.35);
  color:var(--primary2);
}

.grid{display:grid;grid-template-columns:1.1fr .9fr;gap:16px;margin-top:14px}
@media (max-width:900px){.grid{grid-template-columns:1fr}}

.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:18px;
  padding:16px;
  box-shadow:0 10px 24px rgba(2,6,23,.06);
}

label{display:block;font-size:13px;color:var(--muted);margin:10px 0 6px}

textarea,input,select{
  width:100%;
  padding:12px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--text);
  outline:none;
}

textarea:focus,input:focus,select:focus{
  border-color:rgba(37,99,235,.55);
  box-shadow:0 0 0 4px rgba(147,197,253,.35);
}

textarea{min-height:110px;resize:vertical}

.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:520px){.row{grid-template-columns:1fr}}

.btns{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
button{
  border:0;border-radius:12px;padding:12px 14px;
  background:var(--primary);color:white;font-weight:900;cursor:pointer
}
button:hover{background:var(--primary2)}
button.secondary{
  background:#eaf2ff;color:var(--primary2);
  border:1px solid rgba(37,99,235,.25)
}
button.secondary:hover{background:#dbeafe}
button:disabled{opacity:.55;cursor:not-allowed}

.hint{font-size:12px;color:var(--muted);margin-top:8px;line-height:1.5}

.preview{display:flex;flex-direction:column;gap:12px;align-items:center;justify-content:center}
.box{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:320px;
  border-radius:16px;
  border:1px dashed rgba(37,99,235,.35);
  background:linear-gradient(180deg,#ffffff,#f8fbff);
  padding:12px;
  flex-direction:column;
  gap:10px
}
.box canvas,.box img,.box svg{max-width:100%;height:auto}
.status{font-size:13px;color:var(--muted);text-align:center}

.note{font-size:12px;color:var(--muted);line-height:1.5}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace}

.hidden{display:none !important}

/* 광고 상/하단 */
.ad{
  border:1px dashed rgba(37,99,235,.55);
  border-radius:14px;
  padding:14px;
  background:rgba(147,197,253,.18);
  color:var(--primary2);
}
.ad strong{display:block;margin-bottom:6px;color:var(--primary2)}

footer{margin-top:18px;color:var(--muted);font-size:12px;line-height:1.6}

.logo{margin-bottom:15px;}

.logo a img{width:150px;}