/* PROPELL — site styles */
:root{
  --black:#000;--ink:#0E1116;--ink-2:#26344D;--body:#3D434A;--muted:#5A6169;
  --muted-d:#8E98A3;--light-d:#B9C1CA;--pale-d:#D6DCE2;--line:#E2E6EA;--line-d:#22262B;
  --panel-d:#101215;--soft:#F2F4F6;--max:1360px;--pad:40px;
  --sans:'IBM Plex Sans KR',system-ui,-apple-system,'Apple SD Gothic Neo','Malgun Gothic',sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);color:var(--ink);background:#fff;word-break:keep-all;line-height:1.5}
body.dark{background:#000;color:#fff}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:#2479A8}
.dark a:hover,.on-dark a:hover{color:#BFD9EA}
h1,h2,h3,p,figure,dl,dd,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
.wrap{max-width:var(--max);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.eyebrow{font-family:var(--mono);font-size:13px;letter-spacing:.28em;color:var(--muted)}
.on-dark .eyebrow,.dark .eyebrow{color:var(--pale-d)}
.mono{font-family:var(--mono)}
.h-xl{font-size:clamp(40px,5vw,64px);font-weight:600;letter-spacing:-.02em;line-height:1.15}
.h-lg{font-size:clamp(32px,4vw,54px);font-weight:600;letter-spacing:-.02em;line-height:1.2}
.h-md{font-size:clamp(28px,3.4vw,42px);font-weight:600;letter-spacing:-.02em;line-height:1.35}
.h-sm{font-size:clamp(26px,3vw,36px);font-weight:600;letter-spacing:-.02em;line-height:1.35}
.lead{font-size:18px;line-height:1.7;color:var(--body);max-width:640px}
.on-dark .lead{color:var(--pale-d)}
.text{font-size:16px;line-height:1.85;color:var(--body)}
.on-dark .text{color:var(--light-d)}
.stack{display:flex;flex-direction:column}
.g8{gap:8px}.g12{gap:12px}.g16{gap:16px}.g20{gap:20px}.g24{gap:24px}.g28{gap:28px}.g40{gap:40px}.g56{gap:56px}.g64{gap:64px}.g72{gap:72px}
.split{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(320px,100%),1fr));gap:56px;align-items:center}
.split.end{align-items:end}
.grid4{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(260px,100%),1fr));gap:2px}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));gap:32px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:16px 40px;font-size:13px;font-weight:600;letter-spacing:.2em;border:2px solid #fff;color:#fff;background:transparent;cursor:pointer;font-family:inherit;align-self:flex-start;transition:background .2s,color .2s}
.btn:hover{background:#fff;color:#000}
.btn.solid{background:#fff;color:#000;border-color:#fff}
.btn.solid:hover{background:transparent;color:#fff}
.btn.ink{border-color:#000;color:#fff;background:#000}
.btn.ink:hover{background:#fff;color:#000}

/* header */
.site-header{position:relative;z-index:20}
.site-header .bar{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:28px;padding-bottom:28px}
.brand{display:flex;align-items:center;gap:14px;min-height:44px}
.brand img:first-child{width:34px;height:34px}
.brand img:last-child{height:15px;width:auto}
.nav{display:flex;align-items:center;gap:32px;font-size:13px;font-weight:500;letter-spacing:.14em;color:#fff}
.nav a{color:#fff;padding:6px 0;border-bottom:2px solid transparent}
.nav a[aria-current="page"]{border-bottom-color:#fff}
.nav a:hover{color:#BFD9EA}
.menu-btn{display:none;width:44px;height:44px;border:0;background:transparent;color:#fff;cursor:pointer;padding:10px}
.menu-btn svg{width:24px;height:24px}
@media (max-width:860px){
  :root{--pad:20px}
  .menu-btn{display:inline-flex;align-items:center;justify-content:center}
  .nav{position:fixed;inset:0;background:rgba(0,0,0,.98);flex-direction:column;justify-content:center;gap:28px;font-size:20px;opacity:0;visibility:hidden;transition:opacity .25s}
  .nav.open{opacity:1;visibility:visible}
  .nav .close{position:absolute;top:24px;right:20px}
  body.menu-open{overflow:hidden}
}
@media (min-width:861px){.nav .close{display:none}}

/* hero & image bands */
.band{position:relative;overflow:hidden;background:#000;color:#fff}
.band > .bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.band > .shade{position:absolute;inset:0}
.band > .content{position:relative;z-index:2}
.page-title{padding-top:160px;padding-bottom:80px}
.subnav{display:flex;flex-wrap:wrap;gap:28px;margin-top:16px;font-size:14px;letter-spacing:.1em}
.subnav a{min-height:44px;display:inline-flex;align-items:center;color:#fff}

.hero{min-height:900px;min-height:100svh;display:flex;flex-direction:column}
.hero .center{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:36px;text-align:center;padding-top:40px;padding-bottom:140px}
.hero .logo{width:420px;max-width:72vw;height:auto}
.hero .tag{font-size:clamp(20px,2.2vw,28px);line-height:1.5;color:#E6EBF0}
.hero .kinds{font-family:var(--mono);font-size:13px;letter-spacing:.28em;color:#9FB0C2}
.flow{position:absolute;inset:0;width:100%;height:100%}
.flowline{stroke-dasharray:140 1700;stroke-dashoffset:1840;animation:flow linear infinite}
@keyframes flow{from{stroke-dashoffset:1840}to{stroke-dashoffset:0}}
.rise{animation:rise 1.6s ease-out both}
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.flowline{animation:none;stroke-dasharray:none;opacity:.25}.rise{animation:none}html{scroll-behavior:auto}}

.panel{min-height:820px;display:flex}
.panel .content{width:100%;display:flex;flex-direction:column;justify-content:flex-end;gap:24px;padding-top:120px;padding-bottom:120px}
.panel p{max-width:560px}

/* cards */
.card-d{background:var(--panel-d);display:flex;flex-direction:column;color:#fff}
.card-d:hover{color:#fff;background:#16191d}
.card-d .ph{height:280px;display:flex;align-items:center;justify-content:center;padding:40px}
.card-d .ph img{max-height:100%;object-fit:contain}
.card-d .meta{padding:0 32px 36px;display:flex;flex-direction:column;gap:8px}
.card-d .name{font-size:26px;font-weight:600;letter-spacing:.06em}
.svc{background:var(--panel-d);padding:40px 32px;display:flex;flex-direction:column;gap:16px;min-height:240px;color:#fff}
.svc:hover{color:#fff;background:#16191d}
.svc h3{font-size:22px;font-weight:600;line-height:1.4}
.svc p{font-size:15px;line-height:1.75;color:var(--light-d)}
.k{font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:var(--muted)}
.dark .k,.on-dark .k{color:var(--muted-d)}

.info{display:grid;grid-template-columns:96px 1fr;row-gap:22px;column-gap:24px;font-size:16px;align-content:start}
.info dt{font-family:var(--mono);font-size:12px;letter-spacing:.16em;color:var(--muted);padding-top:4px}
.dark .info dt{color:var(--muted-d)}
.info dd{line-height:1.6}

.tick{display:flex;flex-direction:column;gap:10px;font-size:15px;color:var(--ink-2)}
.tick li{display:flex;gap:12px}
.tick li::before{content:"—";color:var(--muted)}

.topline{border-top:2px solid var(--ink);padding-top:24px;display:flex;flex-direction:column;gap:12px}
.topline h3{font-size:21px;font-weight:600}
.topline p{font-size:15px;line-height:1.75;color:var(--body)}

.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(220px,100%),1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.facts > div{background:#fff;padding:28px;display:flex;flex-direction:column;gap:8px}
.facts dd{font-size:17px;font-weight:500}

.history .row{display:grid;grid-template-columns:100px 1fr;gap:24px;padding:28px 0;border-bottom:1px solid var(--line-d)}
.history .yr{font-family:var(--mono);font-size:22px;font-weight:500}
.history li{display:grid;grid-template-columns:48px 1fr;gap:12px;font-size:16px;line-height:1.6;color:var(--pale-d)}
.history li span:first-child{font-family:var(--mono);color:var(--muted-d)}

.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(220px,100%),1fr));gap:1px;background:var(--line);border:1px solid var(--line)}
.steps li{background:#fff;padding:32px 28px;display:flex;flex-direction:column;gap:10px}
.steps b{font-size:19px;font-weight:600}
.steps span{font-size:14px;line-height:1.7;color:var(--body)}

.chips{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}
.chips div{border:1px solid var(--line);padding:20px;display:flex;flex-direction:column;gap:6px}
.chips b{font-size:15px;font-weight:500}

.cutbox{background:var(--soft);height:420px;display:flex;align-items:center;justify-content:center;padding:48px}
.cutbox img{max-height:100%;object-fit:contain}
.cover{width:100%;height:420px;object-fit:cover}

.filter{display:flex;flex-wrap:wrap;gap:8px}
.filter button{padding:12px 22px;font-family:var(--mono);font-size:13px;letter-spacing:.14em;cursor:pointer;min-height:44px;background:#fff;color:var(--ink);border:1px solid #C9D0D8}
.filter button[aria-pressed="true"]{background:#000;color:#fff;border-color:#000}
.product{padding:64px 0;border-bottom:1px solid var(--line)}
.product[hidden]{display:none}
.product h2{display:flex;flex-direction:column;gap:6px}
.product h2 .n{font-size:clamp(30px,3.4vw,44px);font-weight:600;letter-spacing:.06em}
.product h2 .t{font-size:18px;font-weight:500;color:var(--body)}
.spec{display:grid;grid-template-columns:110px 1fr;row-gap:12px;column-gap:20px;font-size:15px;border-top:1px solid var(--ink);padding-top:20px}
.spec dt{color:var(--muted)}

.caps .row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;padding:24px 0;border-bottom:1px solid var(--line)}
.caps dt{font-size:18px;font-weight:600}
.caps dd{font-size:15px;line-height:1.7;color:var(--body)}
.cap{font-family:var(--mono);font-size:12px;letter-spacing:.08em;color:var(--muted)}

/* map */
.map{position:relative;width:100%;aspect-ratio:16/7;min-height:320px;background:#EEF1EC;border:1px solid #D5DBE2}
.map .fallback{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center;padding:24px;color:var(--muted)}
.map-btns{display:flex;flex-wrap:wrap;gap:8px}
.map-btns a{padding:10px 18px;border:1px solid var(--ink);font-size:13px;letter-spacing:.08em;min-height:44px;display:inline-flex;align-items:center}
.map-btns a.naver{background:#03C75A;border-color:#03C75A;color:#fff}

/* form */
.form{display:flex;flex-direction:column;gap:28px}
.form fieldset{border:0;padding:0;margin:0}
.form legend{font-size:15px;font-weight:600;margin-bottom:12px;padding:0}
.types{display:flex;flex-wrap:wrap;gap:8px}
.types label{position:relative}
.types input{position:absolute;opacity:0;width:1px;height:1px}
.types span{display:inline-flex;align-items:center;min-height:44px;padding:12px 20px;font-size:14px;border:1px solid #C9D0D8;cursor:pointer;background:#fff}
.types input:checked + span{background:#000;color:#fff;border-color:#000}
.types input:focus-visible + span{outline:2px solid #3A8FC0;outline-offset:2px}
.fgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(220px,100%),1fr));gap:20px}
.field{display:flex;flex-direction:column;gap:8px;font-size:15px;font-weight:600}
.field input,.field textarea{font:inherit;font-weight:400;font-size:15px;padding:14px 16px;border:1px solid #C9D0D8;border-radius:0;color:var(--ink);background:#fff;width:100%}
.field textarea{line-height:1.6;resize:vertical;min-height:180px}
.field input:focus,.field textarea:focus{outline:2px solid #3A8FC0;outline-offset:1px}
.field small{font-weight:400;color:var(--muted);font-size:13px}
.req{color:#B42318}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--body);min-height:44px}
.agree input{width:20px;height:20px;margin:2px 0 0;flex:none}
details.policy{border:1px solid var(--line);padding:16px 20px;font-size:14px;line-height:1.7;color:var(--body)}
details.policy summary{cursor:pointer;font-weight:600;color:var(--ink);min-height:28px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.status{padding:16px 20px;font-size:15px;line-height:1.6;display:none}
.status.ok{display:block;background:#ECF7EE;border:1px solid #9BD3A6;color:#1E5A2B}
.status.err{display:block;background:#FDF0EF;border:1px solid #F0A9A3;color:#8A1F14}
.btn[disabled]{opacity:.5;cursor:wait}

/* footer */
.site-footer{background:#000;color:var(--muted-d);border-top:1px solid var(--line-d)}
.site-footer .bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding-top:40px;padding-bottom:40px;font-size:13px;line-height:1.7}
.site-footer strong{color:#fff;letter-spacing:.2em}
.site-footer a{color:var(--muted-d)}
.site-footer a:hover{color:#fff}
.site-footer .links{display:flex;gap:20px;align-items:center;flex-wrap:wrap}

.sec{padding-top:140px;padding-bottom:140px}
.sec-120{padding-top:120px;padding-bottom:120px}
@media (max-width:860px){
  .sec,.sec-120{padding-top:88px;padding-bottom:88px}
  .panel{min-height:640px}
  .page-title{padding-top:96px;padding-bottom:56px}
  .cutbox,.cover{height:300px}
  .history .row{grid-template-columns:72px 1fr}
  .info{grid-template-columns:80px 1fr}
  .spec{grid-template-columns:96px 1fr}
}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.skip{position:absolute;left:-9999px;top:0;background:#fff;color:#000;padding:12px 16px;z-index:100}
.skip:focus{left:12px;top:12px}
.map .fallback .btn{align-self:center}