:root{
  --bg:#f7f6fc; --ink:#111; --muted:#6b6b7b; --line:#e6e4f2;
  --accent:#7c6df2; --accent-soft:#ece9ff; --radius:18px;
  --font:'Pretendard Variable',Pretendard,-apple-system,BlinkMacSystemFont,'Segoe UI','Apple SD Gothic Neo','Noto Sans KR',sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;line-height:1.6}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}

/* NAV */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  padding:18px clamp(20px,5vw,64px);transition:.3s}
.nav.scrolled{background:rgba(247,246,252,.82);backdrop-filter:blur(14px);box-shadow:0 1px 0 var(--line);padding-block:12px}
.brand{font-weight:800;font-size:20px;letter-spacing:-.02em}
.menu{display:flex;gap:6px}
.menu a{padding:8px 18px;border-radius:999px;font-weight:600;font-size:15px;color:#444;transition:.2s}
.menu a:hover{background:var(--accent-soft)}
.menu a.active{background:var(--ink);color:#fff}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:16px 30px;border-radius:12px;
  font-weight:700;font-size:16px;border:1px solid var(--ink);cursor:pointer;font-family:inherit;transition:.2s}
.btn i{font-style:normal;transition:transform .2s}
.btn:hover i{transform:translateX(4px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#2a2a35}
.btn-light{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-light:hover{border-color:var(--ink)}
.btn-light:hover i{transform:translateY(3px)}
.btn-block{width:100%}

/* HERO */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden;
  background:radial-gradient(1100px 600px at 80% 10%,#e9e5ff 0%,transparent 60%),
             radial-gradient(900px 600px at 10% 90%,#efeaff 0%,transparent 60%),#fbfafe}
.hero-waves{position:absolute;inset:auto 0 0 0;width:100%;height:62%;opacity:.9}
.wave{fill:none;stroke:var(--accent);stroke-width:1;opacity:.28;animation:drift 14s ease-in-out infinite alternate}
.w1{opacity:.12}.w2{opacity:.16;animation-delay:-1s}.w3{opacity:.2;animation-delay:-2s}.w4{opacity:.24;animation-delay:-3s}
.w5{opacity:.3;animation-delay:-4s}.w6{opacity:.24;animation-delay:-5s}.w7{opacity:.2;animation-delay:-6s}
.w8{opacity:.16;animation-delay:-7s}.w9{opacity:.12;animation-delay:-8s}
@keyframes drift{from{transform:translateY(-18px) scaleY(.92)}to{transform:translateY(18px) scaleY(1.08)}}
.hero-inner{position:relative;z-index:2;padding:120px 24px 100px;max-width:900px}
.eyebrow{color:var(--muted);font-weight:600;letter-spacing:.02em;font-size:15px;margin-bottom:18px}
.hero-title{font-size:clamp(56px,11vw,148px);font-weight:800;letter-spacing:-.045em;line-height:1}
.hero-title span{background:linear-gradient(100deg,#111 10%,#7c6df2 90%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{margin-top:28px;font-size:clamp(18px,2.2vw,26px);font-weight:600;color:#333;letter-spacing:-.01em}
.hero-desc{margin-top:14px;color:var(--muted);font-size:clamp(15px,1.5vw,18px)}
.hero-cta{margin-top:40px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.scroll-hint{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);z-index:3;width:26px;height:42px;
  border:2px solid #bbb6d8;border-radius:20px}
.scroll-hint span{position:absolute;left:50%;top:8px;width:4px;height:8px;margin-left:-2px;border-radius:4px;background:var(--accent);animation:dot 1.6s infinite}
@keyframes dot{0%{opacity:0;transform:translateY(0)}30%{opacity:1}100%{opacity:0;transform:translateY(16px)}}

/* IMAGE STACK */
.stack{max-width:1560px;margin:0 auto;padding:clamp(24px,5vw,72px) clamp(12px,3vw,40px);display:flex;flex-direction:column;gap:clamp(20px,3vw,44px)}
.slide{border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:0 18px 60px -22px rgba(80,60,160,.25),0 0 0 1px var(--line)}
.slide img{width:100%}
.reveal{opacity:0;transform:translateY(36px);transition:opacity .8s ease,transform .8s ease}
.reveal.in{opacity:1;transform:none}

.bottom-cta{text-align:center;padding:80px 24px 110px}
.bottom-cta h2{font-size:clamp(26px,4vw,42px);letter-spacing:-.03em}
.bottom-cta p{color:var(--muted);margin:10px 0 28px}

/* CONTACT */
.contact{min-height:100vh;max-width:1280px;margin:0 auto;padding:130px clamp(16px,4vw,48px) 80px}
.contact-head{text-align:center;margin-bottom:44px}
.contact-head h1{font-size:clamp(28px,4.4vw,48px);letter-spacing:-.035em;line-height:1.2}
.split{display:grid;grid-template-columns:1fr 1.15fr;gap:24px;align-items:stretch}
.panel{background:#fff;border:1px solid var(--line);border-radius:24px;padding:clamp(28px,4vw,52px);
  box-shadow:0 18px 50px -28px rgba(80,60,160,.3)}
.panel .tag{display:inline-block;background:var(--accent-soft);color:var(--accent);font-weight:700;font-size:13px;padding:6px 12px;border-radius:999px;margin-bottom:18px}
.panel h2{font-size:clamp(24px,3vw,34px);letter-spacing:-.03em;line-height:1.25;margin-bottom:14px}
.muted{color:var(--muted);font-size:15.5px}

.panel-kakao{display:flex;flex-direction:column;justify-content:center;
  background:linear-gradient(160deg,#fffdf0 0%,#fff 55%)}
.kakao-btn{margin-top:36px;display:flex;align-items:center;justify-content:center;gap:12px;background:#FEE500;color:#191919;
  font-weight:800;font-size:18px;padding:20px 24px;border-radius:14px;transition:.2s;box-shadow:0 10px 24px -12px rgba(200,170,0,.7)}
.kakao-btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px -12px rgba(200,170,0,.8)}
.hint{margin-top:14px;font-size:13px;color:#9a9aa8;text-align:center}

.form{margin-top:26px;display:flex;flex-direction:column;gap:18px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field label{display:block;font-weight:600;font-size:14px;margin-bottom:7px}
.field label b{color:#e5484d}
.field input[type=text],.field input[type=email],.field select,.field textarea{
  width:100%;padding:14px 15px;border:1px solid #dcd9ec;border-radius:11px;font:inherit;font-size:15px;background:#fcfcff;transition:.15s}
.field textarea{resize:vertical;min-height:140px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft);background:#fff}
.has-error input,.has-error select,.has-error textarea{border-color:#e5484d}
.err{display:block;color:#e5484d;margin-top:5px;font-size:13px}
.chk{display:flex!important;align-items:center;gap:9px;font-weight:600;cursor:pointer;margin:0!important}
.chk input{width:18px;height:18px;accent-color:var(--ink)}
.privacy{display:block;margin-top:6px;color:#9a9aa8;font-size:12.5px;line-height:1.5}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

.toasts{max-width:760px;margin:0 auto 26px}
.toast{padding:16px 20px;border-radius:12px;font-weight:600;font-size:15px;margin-bottom:8px}
.toast.success{background:#e9f8ef;color:#17663a;border:1px solid #bfe9cf}
.toast.error{background:#fdecec;color:#a32428;border:1px solid #f5c3c5}

/* FOOTER */
.footer{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:28px clamp(20px,5vw,64px);
  border-top:1px solid var(--line);color:#8b8b9c;font-size:13px}

@media(max-width:900px){
  .split{grid-template-columns:1fr}
  .row2{grid-template-columns:1fr}
  .menu a{padding:7px 13px;font-size:14px}
  .hero-waves{height:45%}
}
@media(prefers-reduced-motion:reduce){.wave,.scroll-hint span{animation:none}.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}