:root{
  --sky:#4DB6F0;
  --sky-deep:#0A77BD;
  --sky-wash:#EEF8FE;
  --sky-line:#CFE9F8;
  --ink:#1D1D1F;
  --gray:#6E6E73;
  --line:#E8E8ED;
  --bg:#FFFFFF;
  --bg-soft:#F5F5F7;
  --radius:20px;
  --max:1040px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR","Malgun Gothic",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.65;
  word-break:keep-all;overflow-wrap:break-word;
  padding-bottom:calc(76px + env(safe-area-inset-bottom,0px));
}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--sky);outline-offset:3px;border-radius:8px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 22px}
section{padding:72px 0}
.soft{background:var(--bg-soft)}
.wash{background:var(--sky-wash)}

h1,h2,h3{letter-spacing:-0.03em;line-height:1.28;font-weight:700}
h2{font-size:clamp(26px,6.4vw,40px);margin-bottom:12px}
.lead{color:var(--gray);font-size:clamp(16px,4.2vw,19px);max-width:36em}
.center{text-align:center}
.center .lead{margin-inline:auto}

/* 헤더 */
header{
  position:sticky;top:0;z-index:20;
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:saturate(180%) blur(16px);backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid var(--line);
  padding-top:env(safe-area-inset-top,0px);
}
.bar{display:flex;align-items:center;justify-content:space-between;height:54px}
.logo{font-weight:800;font-size:18px;letter-spacing:-0.04em}
.logo i{font-style:normal;color:var(--sky-deep)}
nav{display:none;gap:28px;font-size:14px;color:var(--gray)}
nav a:hover{color:var(--ink)}
.bar .tel{font-size:14px;font-weight:600;color:var(--sky-deep)}
@media(min-width:760px){nav{display:flex}}

/* 버튼 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:52px;padding:0 28px;border-radius:999px;border:0;cursor:pointer;
  font-weight:600;font-size:16px;transition:transform .15s,background .2s;
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--sky-deep);color:#fff}
.btn-primary:hover{background:#08659f}
.btn-ghost{background:#fff;color:var(--sky-deep);box-shadow:inset 0 0 0 1.5px var(--sky-line)}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}

/* 히어로: 큰 글자와 하늘색 한 덩어리만 */
.hero{padding:64px 0 76px;position:relative;overflow:hidden;background:linear-gradient(180deg,var(--sky-wash) 0%,#fff 100%)}
.hero::after{
  content:"";position:absolute;right:-90px;top:-70px;width:300px;height:300px;border-radius:50%;
  background:var(--sky);opacity:.18;
}
.hero .wrap{position:relative;z-index:1}
.hero p.sub{font-size:15px;color:var(--sky-deep);font-weight:600;margin-bottom:18px}
.hero h1{font-size:clamp(38px,11.5vw,76px);font-weight:800;letter-spacing:-0.045em;line-height:1.14}
.hero .lead{margin-top:22px}
.hero-facts{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px}
.hero-facts span{font-size:14px;color:var(--gray);background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px}

/* 체크리스트 */
.checks{list-style:none;margin-top:36px;display:grid;gap:10px;max-width:640px}
.checks li{
  display:flex;gap:14px;align-items:flex-start;background:#fff;border-radius:16px;padding:18px 20px;font-size:17px;
}
.checks li::before{
  content:"";flex:none;width:22px;height:22px;margin-top:2px;border-radius:50%;background:var(--sky-deep);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E");
  background-size:14px;background-position:center;background-repeat:no-repeat;
}

/* 수업 방식 */
.cols{display:grid;gap:14px;margin-top:36px}
.card{background:var(--bg-soft);border-radius:var(--radius);padding:28px 24px}
.wash .card,.soft .card{background:#fff}
.card h3{font-size:20px;margin-bottom:8px}
.card p{color:var(--gray);font-size:16px}
.card p.price{color:var(--ink);font-weight:700;font-size:20px;letter-spacing:-0.02em}
.card .tag{display:inline-block;font-size:13px;font-weight:600;color:var(--sky-deep);background:var(--sky-wash);border-radius:999px;padding:3px 12px;margin-bottom:14px}
@media(min-width:760px){.cols{grid-template-columns:repeat(3,1fr)}.cols.two{grid-template-columns:repeat(2,1fr)}.cols.four{grid-template-columns:repeat(4,1fr)}}

/* 진행 순서: 실제 순서가 있는 내용이라 번호 사용 */
.steps{list-style:none;margin-top:36px;display:grid;gap:0;max-width:680px;counter-reset:s}
.steps li{position:relative;padding:0 0 30px 56px;counter-increment:s}
.steps li::before{
  content:counter(s);position:absolute;left:0;top:0;width:36px;height:36px;border-radius:50%;
  background:var(--sky-deep);color:#fff;font-weight:700;display:grid;place-items:center;font-size:15px;
}
.steps li::after{content:"";position:absolute;left:17px;top:42px;bottom:6px;width:2px;background:var(--sky-line)}
.steps li:last-child{padding-bottom:0}
.steps li:last-child::after{display:none}
.steps h3{font-size:19px;margin-bottom:4px}
.steps p{color:var(--gray);font-size:16px}

/* Q&A */
.faq{margin-top:32px;max-width:720px}
details{border-bottom:1px solid var(--line)}
summary{
  list-style:none;cursor:pointer;padding:22px 36px 22px 0;font-weight:600;font-size:18px;position:relative;
}
summary::-webkit-details-marker{display:none}
summary::after{
  content:"";position:absolute;right:4px;top:50%;width:10px;height:10px;margin-top:-8px;
  border-right:2px solid var(--gray);border-bottom:2px solid var(--gray);transform:rotate(45deg);transition:transform .2s;
}
details[open] summary::after{transform:rotate(-135deg);margin-top:-2px}
details p{color:var(--gray);padding:0 0 24px;font-size:16px;max-width:38em}

/* 사례 */
.case{background:#fff;border-radius:var(--radius);padding:26px 24px}
.case small{display:block;color:var(--sky-deep);font-weight:600;font-size:14px;margin-bottom:8px}
.case h3{font-size:19px;margin-bottom:8px}
.case p{color:var(--gray);font-size:16px}
.case p+p{margin-top:12px}
@media(min-width:760px){.cols.two .case:last-child:nth-child(odd){grid-column:1/-1}}
.note{margin-top:18px;font-size:13px;color:var(--gray)}

/* 상담 폼 */
.form{max-width:520px;margin:36px auto 0;text-align:left;background:#fff;border-radius:24px;padding:28px 22px;box-shadow:0 10px 40px rgba(10,119,189,.10)}
.field{margin-bottom:18px}
label{display:block;font-weight:600;font-size:15px;margin-bottom:8px}
input,select,textarea{
  width:100%;min-height:52px;padding:12px 16px;border:1.5px solid var(--line);border-radius:14px;background:#fff;
  font-size:16px;transition:border-color .2s;
}
textarea{min-height:104px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--sky-deep);box-shadow:0 0 0 4px var(--sky-wash)}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--gray);margin-bottom:20px}
.agree input{width:20px;min-height:20px;height:20px;margin-top:3px;accent-color:var(--sky-deep)}
.form .btn{width:100%}
.msg{margin-top:16px;font-size:15px;font-weight:600;text-align:center;min-height:1.5em}
.msg.ok{color:var(--sky-deep)}
.msg.err{color:#C0362C}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}

/* 푸터 */
footer{padding:44px 0 32px;font-size:13px;color:var(--gray);background:var(--bg-soft)}
footer p+p{margin-top:4px}

/* 하단 고정 상담바 (모바일 우선) */
.dock{
  position:fixed;left:0;right:0;bottom:0;z-index:30;
  display:flex;gap:10px;padding:10px 14px calc(10px + env(safe-area-inset-bottom,0px));
  background:rgba(255,255,255,.9);-webkit-backdrop-filter:saturate(180%) blur(16px);backdrop-filter:saturate(180%) blur(16px);
  border-top:1px solid var(--line);
}
.dock .btn{flex:1;min-height:50px;padding:0 12px}
@media(min-width:760px){
  body{padding-bottom:0}
  .dock{display:none}
  section{padding:104px 0}
  .hero{padding:110px 0 120px}
  .hero::after{width:520px;height:520px;right:-120px;top:-120px}
}

.crumb{font-size:14px;color:var(--gray);margin-bottom:18px}
.crumb a{color:var(--sky-deep)}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.chips a{padding:10px 18px;border-radius:999px;background:#fff;border:1px solid var(--sky-line);font-size:15px;font-weight:500}
.chips a:hover{background:var(--sky-wash)}
.grp{margin-top:36px}
.grp h3{font-size:18px}
.page-hero{padding:48px 0 56px;background:linear-gradient(180deg,var(--sky-wash) 0%,#fff 100%)}
.page-hero h1{font-size:clamp(30px,8vw,52px);font-weight:800;letter-spacing:-0.04em;line-height:1.2}
.page-hero .lead{margin-top:18px}
@media(min-width:760px){.page-hero{padding:80px 0 88px}}
.areas{max-width:none}
.areas .chips{margin:0 0 24px}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}