:root{
  --bg:#F6F7FB;
  --bg-dim:#EAECF5;
  --ink:#1A1D2E;
  --ink-soft:#40445C;
  --muted:#83869C;
  --blue:#3457D5;
  --blue-dim:#DEE6FB;
  --amber:#E8813F;
  --line:rgba(26,29,46,0.10);
  --radius:16px;
  --font-body:'Pretendard', sans-serif;
}
*{box-sizing:border-box;}
html, body{
  margin:0; padding:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  line-height:1.7;
  word-break:keep-all;
  overflow-wrap:break-word;
}
body{
  background-image:
    radial-gradient(ellipse 560px 380px at 8% -8%, rgba(52,87,213,0.09), transparent 60%),
    radial-gradient(ellipse 560px 380px at 100% 6%, rgba(232,129,63,0.08), transparent 60%);
}
a{color:inherit;}

/* ==== 헤더 ==== */
.site-header{
  display:flex; align-items:center; justify-content:space-between;
  max-width:880px; margin:0 auto; padding:20px 20px 8px;
}
.logo{
  font-size:19px; font-weight:900; letter-spacing:-0.01em;
  text-decoration:none; color:var(--ink);
  display:flex; align-items:center; gap:8px;
}
.logo span{color:var(--blue);}
.nav-family-link{
  display:inline-flex; align-items:center; gap:5px;
  font-size:12.5px; font-weight:600; color:var(--ink-soft);
  background:var(--blue-dim); border:1px solid var(--line);
  border-radius:999px; padding:6px 12px; text-decoration:none;
  transition:border-color 0.2s;
}
.nav-family-link:hover{border-color:var(--blue);}
.back-link{
  display:inline-flex; align-items:center; gap:5px;
  font-size:13px; font-weight:700; color:var(--blue);
  text-decoration:none; margin:14px 0 4px;
}
.back-link:hover{text-decoration:underline;}

.wrap{max-width:880px; margin:0 auto; padding:0 20px;}

/* ==== 히어로 ==== */
.hero{padding:36px 0 10px;}
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:12px; font-weight:700; letter-spacing:0.12em;
  color:var(--amber); text-transform:uppercase; margin-bottom:14px;
}
.eyebrow::before{content:''; width:16px; height:1.5px; background:var(--amber);}
.hero h1{
  font-size:clamp(26px, 5.6vw, 40px); font-weight:900; letter-spacing:-0.02em;
  line-height:1.35; max-width:600px;
}
.hero h1 .accent{
  background:linear-gradient(100deg, var(--blue), var(--amber) 65%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero p{margin-top:14px; font-size:14.5px; color:var(--ink-soft); max-width:56ch;}

/* ==== 도구 카드 그리드 (허브) ==== */
.tool-grid{
  display:grid; grid-template-columns:1fr 1fr;
  gap:12px; padding:26px 0 10px;
}
@media(max-width:600px){ .tool-grid{grid-template-columns:1fr;} }
.tool-card{
  display:flex; align-items:center; gap:14px;
  text-decoration:none; color:inherit;
  background:#fff; border:1px solid var(--line); border-radius:14px;
  padding:16px 18px; transition:transform 0.2s cubic-bezier(.2,.8,.2,1), box-shadow 0.2s;
}
.tool-card:hover{transform:translateY(-3px); box-shadow:0 14px 26px -14px rgba(26,29,46,0.2);}
.tool-card .emoji{font-size:26px; flex:0 0 auto;}
.tool-card h2{font-size:15.5px; font-weight:800; margin-bottom:2px;}
.tool-card p{font-size:12.5px; color:var(--muted);}

/* ==== 도구 실행 화면 ==== */
.tool-card-main{
  background:#fff; border:1px solid var(--line); border-radius:20px;
  padding:26px 24px; margin:20px 0;
}
.tool-card-main h2{font-size:16px; font-weight:800; margin-bottom:6px;}
.tool-card-main .desc{font-size:13px; color:var(--muted); margin-bottom:16px;}

textarea{
  width:100%; min-height:180px; padding:14px; border:1.5px solid var(--line); border-radius:12px;
  font-size:15px; background:var(--bg); color:var(--ink); font-family:inherit; resize:vertical;
}
textarea:focus{ outline:2px solid var(--blue); outline-offset:1px; }

.dropzone{
  border:2px dashed var(--line); border-radius:14px; padding:32px 20px;
  text-align:center; cursor:pointer; transition:border-color 0.2s, background 0.2s;
  background:var(--bg);
}
.dropzone:hover, .dropzone.dragover{ border-color:var(--blue); background:var(--blue-dim); }
.dropzone .emoji{font-size:34px; margin-bottom:8px;}
.dropzone p{font-size:13.5px; color:var(--muted);}
.dropzone input[type=file]{display:none;}

.file-list{margin-top:14px; display:flex; flex-direction:column; gap:8px;}
.file-item{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  background:var(--bg); border-radius:10px; padding:10px 14px; font-size:13.5px;
}
.file-item .file-name{flex:1; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}
.file-item button{
  background:none; border:none; color:var(--muted); cursor:pointer; font-size:16px;
  padding:0 4px;
}
.file-item button:hover{color:#C0392B;}

.stat-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:8px; margin-top:14px;}
@media(max-width:480px){ .stat-grid{grid-template-columns:repeat(2,1fr);} }
.stat-item{background:var(--bg); border-radius:12px; padding:14px 10px; text-align:center;}
.stat-item .stat-value{font-size:22px; font-weight:900; color:var(--blue);}
.stat-item .stat-label{font-size:11.5px; color:var(--muted); margin-top:2px;}

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:6px;
  padding:13px 20px; border-radius:12px; border:none;
  background:linear-gradient(100deg, var(--blue), #4E6EE0);
  color:#fff; font-weight:700; font-size:14.5px; cursor:pointer;
  width:100%; margin-top:14px; transition:box-shadow 0.2s, transform 0.15s;
  text-decoration:none;
}
.btn:hover{box-shadow:0 8px 18px -8px rgba(52,87,213,0.5);}
.btn:active{transform:scale(0.98);}
.btn:disabled{opacity:0.5; cursor:not-allowed;}
.btn.ghost{background:transparent; border:1.5px solid var(--line); color:var(--ink-soft); box-shadow:none;}

.field-row{display:flex; gap:10px; margin-top:12px; flex-wrap:wrap;}
.field{flex:1; min-width:120px;}
.field label{font-size:12px; font-weight:700; color:var(--muted); display:block; margin-bottom:5px;}
.field input{
  width:100%; padding:11px 12px; border:1.5px solid var(--line); border-radius:10px;
  font-size:14px; background:var(--bg); color:var(--ink); font-family:inherit;
}
.field input:focus{outline:2px solid var(--blue); outline-offset:1px;}
.field input[type=range]{padding:0; border:none; background:transparent; height:24px;}

#qrcodeCanvas{display:flex; justify-content:center; margin:16px 0; min-height:180px; align-items:center;}
#qrcodeCanvas canvas, #qrcodeCanvas img{border-radius:8px; border:1px solid var(--line);}

.status-msg{font-size:13px; color:var(--muted); margin-top:8px;}
.status-msg.error{color:#C0392B;}
.status-msg.success{color:var(--blue); font-weight:700;}

/* ==== 광고/쿠팡 자리 ==== */
.ad-slot{
  margin:20px auto; max-width:880px; min-height:100px;
  display:flex; align-items:center; justify-content:center; padding:16px;
  border:1.5px dashed var(--line); border-radius:var(--radius);
  background:repeating-linear-gradient(45deg, rgba(26,29,46,0.02), rgba(26,29,46,0.02) 10px, transparent 10px, transparent 20px);
  color:var(--muted); font-size:12px;
}
.ad-slot-tag{font-size:10px; font-weight:700; letter-spacing:0.08em; opacity:0.7;}
.ad-slot-bottom{min-height:250px;}
.coupang-slot{max-width:100%; overflow-x:auto; margin:16px auto; text-align:center;}
.coupang-notice{font-size:11px; color:var(--muted); text-align:center; margin-bottom:6px;}

/* ==== 푸터 ==== */
.site-footer{
  max-width:880px; margin:20px auto 0; padding:24px 20px 40px;
  border-top:1px solid var(--line); font-size:12px; color:var(--muted);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
}
.site-footer nav{display:flex; gap:16px;}
.site-footer a{text-decoration:none; font-weight:600; color:var(--ink-soft);}
.site-footer a:hover{color:var(--blue);}

.privacy-note{
  font-size:11.5px; color:var(--muted); background:var(--blue-dim);
  border-radius:12px; padding:12px 14px; margin-top:14px; line-height:1.7;
}