:root{--mint:#02bca7;--mint-d:#019a89;--black:#000;--gray:#f2f2f2;--line:#e3e3e3;--text:#222;--sub:#6b6b6b}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:"Pretendard","Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR",sans-serif;color:var(--text);background:#fff;line-height:1.6}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}

/* header */
.hd{background:var(--black)}
.hd .wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
.hd .logo img{display:block;height:48px;width:auto}
.btn-paid{background:var(--mint);color:#fff;font-weight:700;font-size:15px;padding:10px 20px;border-radius:999px;transition:background .15s}
.btn-paid:hover{background:var(--mint-d)}
/* menu bar */
.nav{background:var(--gray);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;gap:4px;height:44px;align-items:stretch}
.nav a{display:flex;align-items:center;padding:0 16px;font-size:14px;font-weight:600;color:#555;border-bottom:3px solid transparent}
.nav a:hover{color:var(--black)}
.nav a.on{color:var(--black);border-bottom-color:var(--mint)}

/* hero/intro */
.intro{padding:44px 20px 8px}
.intro h1{font-size:30px;line-height:1.3;letter-spacing:-.02em}
.intro h1 b{color:var(--mint)}
.intro p{margin-top:10px;color:var(--sub);font-size:16px}

/* preview tool */
.tool{position:sticky;top:0;z-index:5;background:#fff;border-bottom:1px solid var(--line);margin-top:24px}
.tool .wrap{display:flex;gap:16px;align-items:center;padding-top:14px;padding-bottom:14px;flex-wrap:wrap}
.tool input[type=text]{flex:1 1 280px;min-width:0;font:inherit;font-size:16px;padding:12px 16px;border:2px solid var(--line);border-radius:10px;outline:none}
.tool input[type=text]:focus{border-color:var(--mint)}
.size{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--sub);flex:0 0 auto}
.size input{width:160px;accent-color:var(--mint)}
.size output{min-width:44px;text-align:right;font-variant-numeric:tabular-nums;color:var(--text)}

/* cards */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding:28px 0 8px}
.card{border:1px solid var(--line);border-radius:14px;padding:18px 20px 20px;background:#fff;min-width:0;transition:border-color .15s,box-shadow .15s}
.card:hover{border-color:var(--mint);box-shadow:0 6px 18px rgba(2,188,167,.12)}
.card .nm{font-size:13px;font-weight:700;color:var(--mint)}
.card .pv{margin-top:10px;font-size:var(--fs,44px);line-height:1.35;color:#111;min-height:calc(var(--fs,44px)*2.7);word-break:keep-all;overflow-wrap:anywhere}

/* download */
.dl{text-align:center;padding:36px 0 40px}
.btn-dl{display:inline-flex;align-items:center;gap:10px;background:var(--mint);color:#fff;font-weight:800;font-size:19px;padding:18px 34px;border-radius:14px;box-shadow:0 8px 20px rgba(2,188,167,.3);transition:background .15s,transform .1s}
.btn-dl:hover{background:var(--mint-d)}
.btn-dl:active{transform:translateY(1px)}
.dl small{display:block;margin-top:12px;color:var(--sub);font-size:13px}

/* license */
.lic{background:var(--gray);border-radius:14px;padding:22px 24px;margin-bottom:56px}
.lic h2{font-size:17px;margin-bottom:10px}
.lic ul{list-style:none;display:grid;gap:6px;font-size:15px}
.lic li:before{content:"✓";color:var(--mint);font-weight:800;margin-right:8px}
.lic details{margin-top:14px;font-size:14px;color:#555}
.lic summary{cursor:pointer;font-weight:700;color:var(--black)}
.lic pre{margin-top:10px;white-space:pre-wrap;font:inherit;line-height:1.7;background:#fff;border-radius:10px;padding:16px 18px}

/* gallery */
.apps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:30px 0 64px}
.app{display:block;min-width:0}
.th{position:relative;aspect-ratio:1/1;border-radius:18px;overflow:hidden;background:var(--mint);display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;transition:transform .15s,box-shadow .15s}
.app:hover .th{transform:translateY(-3px);box-shadow:0 10px 24px rgba(2,188,167,.3)}
.th img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.th .big{font-family:"TH","SS",sans-serif;font-size:clamp(44px,7vw,84px);line-height:1.3;padding-bottom:6px}
.th .sm{margin-top:4px;font-size:13px;font-weight:700;opacity:.9}
.app .t{margin-top:12px;font-weight:800;font-size:16px}
.app .d{font-size:13px;color:var(--sub)}
.empty .th{background:#fafafa;border:2px dashed #d7d7d7;color:#b5b5b5;font-weight:700;font-size:14px}
.empty .th span{display:block}
.empty .t{color:#b5b5b5}

/* footer */
.ft{background:var(--gray);border-top:1px solid var(--line);padding:32px 0 40px;color:var(--sub);font-size:13px;line-height:1.8}
.ft .top{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:16px}
.ft .top img{width:56px;height:56px;border-radius:50%;display:block}
.ft .links{display:flex;gap:16px;flex-wrap:wrap;font-weight:700;color:#444}
.ft .links a:hover{color:var(--mint)}
.ft p span{white-space:nowrap}
.ft p span+span:before{content:"｜";margin:0 8px;color:#bbb}
.ft .cp{margin-top:10px;color:#999}

@media(max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}.apps{grid-template-columns:repeat(3,1fr)}}
@media(max-width:600px){
 .hd .wrap{height:60px}.hd .logo img{height:40px}.btn-paid{padding:9px 16px;font-size:14px}
 .intro{padding-top:28px}.intro h1{font-size:24px}
 .grid{grid-template-columns:1fr}.apps{grid-template-columns:repeat(2,1fr);gap:14px}
 .size input{width:110px}.ft p span{display:block;white-space:normal}.ft p span+span:before{content:none}
}