:root{
  --ink:#14172b; --sub:#5a6178; --faint:#8a90a8;
  --bg:#ffffff; --bg2:#f6f8fe; --line:#e6e9f4;
  --accent:#3d5afe; --accent-dk:#2a41d8; --green:#0eaa6b; --warn:#e8890c;
  --dark-bg:#12152a; --dark-panel:#1b2038; --dark-line:#2c3358; --dark-ink:#eef0fa; --dark-sub:#9aa3c7;
  --radius:16px;
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{background:var(--bg); color:var(--ink);
  font-family:"Pretendard","Apple SD Gothic Neo","Noto Sans KR","Malgun Gothic",sans-serif;
  line-height:1.7; font-size:17px;}
.wrap{max-width:1060px; margin:0 auto; padding:0 22px;}
a{color:inherit; text-decoration:none;}
section{padding:74px 0;}
img{max-width:100%;}
.eyebrow{display:inline-block; font-size:13px; font-weight:700; color:var(--accent);
  background:#eef1ff; border-radius:999px; padding:5px 14px; margin-bottom:16px; letter-spacing:.2px;}
h2.sec{font-size:clamp(22px,3.4vw,30px); font-weight:800; line-height:1.35; margin-bottom:14px;}
.sec-sub{color:var(--sub); max-width:640px;}

/* nav */
nav{position:sticky; top:0; background:rgba(255,255,255,.92); backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line); z-index:50;}
.nav-in{display:flex; align-items:center; justify-content:space-between; height:62px;}
.logo{font-weight:900; font-size:19px; display:flex; align-items:center; gap:8px;}
.logo b{color:var(--accent);}
.logo img{width:28px; height:28px;}
.nav-links{display:flex; gap:24px; font-size:15.5px; color:var(--sub); align-items:center;}
.nav-links a:hover{color:var(--ink);}
.nav-links a.on{color:var(--accent); font-weight:700;}
@media(max-width:760px){.nav-links a.hide-m{display:none;}}
.btn{display:inline-block; background:var(--accent); color:#fff; font-weight:700;
  border:none; border-radius:12px; padding:13px 26px; font-size:15.5px; cursor:pointer;
  font-family:inherit; transition:.15s;}
.btn:hover{background:var(--accent-dk);}
.btn.sm{padding:9px 18px; font-size:13.5px; border-radius:10px;}
.btn.ghost{background:#fff; color:var(--accent); border:1.5px solid var(--accent);}
.btn.ghost:hover{background:#eef1ff;}
.btn.big{padding:16px 34px; font-size:17px;}

/* page hero (subpages) */
.page-hero{padding:64px 0 20px;}
.page-hero h1{font-size:clamp(26px,4.4vw,38px); font-weight:900; line-height:1.3; letter-spacing:-.5px;}
.page-hero p{color:var(--sub); margin-top:12px; max-width:640px; font-size:17.5px;}

/* screenshots */
.shot{border-radius:14px; box-shadow:0 30px 70px -24px rgba(20,25,60,.35); border:1px solid var(--line);}
.shot-hero{margin-top:52px;}

/* feature blocks */
.feature{display:grid; grid-template-columns:1fr 1.25fr; gap:44px; align-items:center; padding:44px 0;}
.feature.rev{grid-template-columns:1.25fr 1fr;}
.feature.rev .f-text{order:2;}
@media(max-width:860px){.feature,.feature.rev{grid-template-columns:1fr;} .feature.rev .f-text{order:0;}}
.f-text h3{font-size:21px; font-weight:800; margin-bottom:10px;}
.f-text p{color:var(--sub); font-size:16.5px;}
.f-text ul{list-style:none; margin-top:14px; font-size:15.5px; color:var(--sub);}
.f-text li{padding:4px 0 4px 24px; position:relative;}
.f-text li::before{content:"✓"; position:absolute; left:0; color:var(--green); font-weight:800;}
.f-tag{display:inline-block; font-size:12px; font-weight:800; color:var(--accent); background:#eef1ff;
  border-radius:6px; padding:3px 9px; margin-bottom:10px;}

/* cards / grids */
.grid3{display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin-top:36px;}
@media(max-width:760px){.grid3{grid-template-columns:1fr;}}
.card{background:var(--bg2); border-radius:var(--radius); padding:24px;}
.card h3{font-size:15.5px; margin-bottom:8px;}
.card p{font-size:15px; color:var(--sub);}

/* steps */
.steps{display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin-top:36px;}
@media(max-width:860px){.steps{grid-template-columns:1fr;}}
.step{background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:26px;}
.step .n{width:34px; height:34px; border-radius:10px; background:var(--accent); color:#fff;
  font-weight:800; display:flex; align-items:center; justify-content:center; margin-bottom:14px;}
.step .tag{font-size:12.5px; font-weight:800; color:var(--faint); letter-spacing:.5px;}
.step h3{font-size:16.5px; margin:4px 0 8px;}
.step p{font-size:15px; color:var(--sub);}

/* pricing */
.plans{display:grid; grid-template-columns:1fr 1fr; gap:20px; margin-top:36px; max-width:820px;}
@media(max-width:760px){.plans{grid-template-columns:1fr;}}
.plan{border:1px solid var(--line); border-radius:var(--radius); padding:30px; background:#fff; position:relative;}
.plan.featured{border:2px solid var(--accent); box-shadow:0 10px 34px rgba(61,90,254,.12);}
.plan .flag{position:absolute; top:-13px; left:24px; background:var(--accent); color:#fff;
  font-size:12px; font-weight:700; border-radius:999px; padding:3px 12px;}
.plan .flag.green{background:var(--green);}
.plan h3{font-size:17px;}
.plan .price{font-size:29px; font-weight:900; margin:10px 0 2px;}
.plan .price small{font-size:13px; font-weight:600; color:var(--faint);}
.plan .per{font-size:14px; color:var(--faint); margin-bottom:16px;}
.plan ul{list-style:none; font-size:15.5px; color:var(--sub); margin-bottom:22px;}
.plan li{padding:4px 0 4px 22px; position:relative;}
.plan li::before{content:"✓"; position:absolute; left:0; color:var(--green); font-weight:800;}
.plan .btn{width:100%; text-align:center;}

/* faq */
details{border:1px solid var(--line); border-radius:12px; padding:16px 20px; margin-top:12px; background:#fff;}
details summary{font-weight:700; font-size:16px; cursor:pointer; list-style:none;}
details summary::-webkit-details-marker{display:none;}
details summary::after{content:"+"; float:right; color:var(--accent); font-weight:800;}
details[open] summary::after{content:"−";}
details p{margin-top:10px; color:var(--sub); font-size:15.5px;}
.faq-group{margin-top:40px;}
.faq-group h2{font-size:18px; font-weight:800; margin-bottom:6px;}

/* CTA band */
.cta-band{background:linear-gradient(160deg, #1c2440, #12152a); border-radius:28px; margin:0 14px 74px; color:#fff;}
.cta-band .wrap{padding:64px 22px; text-align:center;}
.cta-band section{padding:0;}
.cta-band h2{font-size:clamp(22px,3.4vw,30px); font-weight:800;}
.cta-band p.s{color:var(--dark-sub); margin:12px auto 28px; max-width:540px; font-size:16px;}
.cta-band .note{margin-top:14px; font-size:13px; color:var(--dark-sub);}

/* footer */
footer{border-top:1px solid var(--line); padding:40px 0 52px; color:var(--faint); font-size:14px;}
.foot-grid{display:flex; justify-content:space-between; gap:24px; flex-wrap:wrap;}
.foot-brand{font-weight:900; font-size:16px; color:var(--ink); display:flex; align-items:center; gap:7px; margin-bottom:8px;}
.foot-brand img{width:22px; height:22px;}
.foot-links{display:flex; gap:22px; flex-wrap:wrap;}
.foot-links a{color:var(--sub);}
.foot-links a:hover{color:var(--ink);}
.foot-legal{margin-top:18px; line-height:1.8;}