:root{
  --ink:#14302a;--green:#1d6a43;--green2:#237a4c;--lime:#6f8f35;--leaf:#a8c48a;
  --muted:#5f7368;--paper:#ffffff;--sand:#f3f6ee;--line:#e1e8da;--deep:#0f2e1f;
  --leafR:96px 0 96px 0;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Noto Sans KR',sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;-webkit-font-smoothing:antialiased;word-break:keep-all}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 28px}
section{scroll-margin-top:80px}

/* header */
header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.head{height:78px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-size:24px;font-weight:800;letter-spacing:-1.2px}
.logo img{height:36px;width:auto}
.logo span{background:linear-gradient(90deg,#1f7f48,#5a8f2a);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
nav{display:flex;align-items:center;gap:2px;font-size:14px;font-weight:700;letter-spacing:.2px}
nav a{padding:8px 13px;border-radius:30px}
nav a:hover{background:var(--sand)}
nav a[aria-current="page"]{color:var(--green)}
nav .cta{background:var(--ink);color:#fff;margin-left:8px}
nav .cta:hover,nav .cta[aria-current="page"]{background:var(--green);color:#fff}
.menu{display:none;background:none;border:0;font-size:26px;color:var(--ink);cursor:pointer}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:15px 26px;border-radius:40px;font-weight:700;font-size:15px;transition:.2s;border:0;cursor:pointer;font-family:inherit}
.btn.solid{background:linear-gradient(90deg,var(--green),#3a7442);color:#fff}
.btn.solid:hover{filter:brightness(1.1)}
.btn.ghost{border:1.5px solid var(--ink);background:none;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff}
.btn.light{background:#fff;color:var(--ink)}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}

/* common text */
.sec{padding:110px 0}
.sec.alt{background:var(--sand)}
.label{font-size:13px;font-weight:800;color:var(--green);letter-spacing:1px}
.title{font-size:clamp(28px,3.4vw,42px);line-height:1.4;letter-spacing:-1.2px;margin:12px 0 18px;font-weight:600}
.desc{color:var(--muted);font-size:16px;max-width:760px;margin:0}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;flex-wrap:wrap}
.more{font-weight:700;color:var(--green);border-bottom:1.5px solid currentColor;padding-bottom:2px}
.note{font-size:13px;color:var(--muted);margin-top:18px}

/* home hero */
.hero{padding:70px 0 90px}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:60px;align-items:center}
.tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--green);background:#fff;border:1px solid var(--line);padding:7px 14px;border-radius:30px}
.tag::before{content:"";width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,var(--green2),var(--lime))}
.hero h1{font-size:clamp(36px,5vw,62px);line-height:1.25;letter-spacing:-2px;margin:22px 0;font-weight:600}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--green),#4c7f38);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p{font-size:17px;color:var(--muted);max-width:540px;margin:0}
.hero-visual{position:relative}
.hero-visual img{width:100%;height:540px;object-fit:cover;border-radius:var(--leafR)}
.badge{position:absolute;left:-34px;bottom:44px;background:#fff;border-radius:20px;padding:18px 22px;box-shadow:0 18px 40px rgba(20,48,42,.14);display:flex;gap:14px;align-items:center;max-width:290px}
.badge b{display:block;font-size:15px}
.badge small{color:var(--muted);font-size:13px;line-height:1.5;display:block}
.badge i{flex:none;width:44px;height:44px;border-radius:14px 0 14px 0;background:linear-gradient(135deg,var(--green2),var(--lime))}

/* sub page hero */
.page-hero{background:var(--sand);padding:70px 0 64px;border-bottom:1px solid var(--line)}
.crumb{font-size:13px;color:var(--muted);margin-bottom:14px}
.crumb a:hover{color:var(--green)}
.page-hero h1{font-size:clamp(32px,4.2vw,52px);line-height:1.3;letter-spacing:-1.6px;margin:8px 0 16px;font-weight:600}
.page-hero p{color:var(--muted);font-size:17px;max-width:760px;margin:0}

/* keyword strip */
.strip{background:var(--deep);color:#dfeee2;overflow:hidden;padding:18px 0}
.strip-track{display:flex;gap:44px;white-space:nowrap;width:max-content;animation:flow 32s linear infinite;font-weight:700;font-size:15px}
.strip-track span::before{content:"✦";color:var(--leaf);margin-right:14px}
@keyframes flow{to{transform:translateX(-50%)}}
@media(prefers-reduced-motion:reduce){.strip-track{animation:none}}

/* value / info cards */
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:50px}
.value{background:#fff;border:1px solid var(--line);border-radius:28px 0 28px 0;padding:30px}
.value .n{font-size:32px;font-weight:800;color:var(--lime);line-height:1}
.value h3{margin:14px 0 8px;font-size:18px}
.value p{margin:0;color:var(--muted);font-size:14.5px}

/* business cards */
.biz{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:50px}
.biz-card{background:#fff;border:1px solid var(--line);border-radius:32px 0 32px 0;overflow:hidden;display:flex;flex-direction:column}
.biz-card img{width:100%;height:220px;object-fit:cover}
.biz-card div{padding:28px}
.biz-card .step{display:inline-block;font-size:12px;font-weight:800;color:#fff;background:var(--ink);padding:4px 12px;border-radius:20px}
.biz-card h3{font-size:21px;font-weight:600;margin:14px 0 8px;letter-spacing:-.5px}
.biz-card p{margin:0;color:var(--muted);font-size:15px}

/* zigzag */
.svc{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;margin-top:70px}
.svc.rev .svc-img{order:2}
.svc-img img{width:100%;height:380px;object-fit:cover;border-radius:var(--leafR)}
.svc.rev .svc-img img{border-radius:0 96px 0 96px}
.svc .step{display:inline-block;font-size:12px;font-weight:800;color:#fff;background:var(--ink);padding:5px 12px;border-radius:20px}
.svc .step.dev{background:#b7791f}
.svc h3{font-size:28px;letter-spacing:-1px;margin:16px 0 12px;font-weight:600}
.svc p{color:var(--muted);margin:0 0 18px}
.checks{margin:0;padding:0;list-style:none;display:grid;gap:8px}
.checks li{display:flex;gap:10px;font-size:15px}
.checks li::before{content:"";flex:none;width:18px;height:18px;margin-top:5px;border-radius:9px 0 9px 0;background:linear-gradient(135deg,var(--green2),var(--lime))}
.caution{margin-top:18px;font-size:13.5px;color:var(--muted);background:var(--sand);border-left:3px solid var(--lime);padding:12px 16px;border-radius:0 12px 12px 0}

/* timeline */
.timeline{--n:5;display:grid;grid-template-columns:repeat(var(--n),1fr);margin-top:60px;position:relative}
.timeline::before{content:"";position:absolute;top:27px;left:calc(50% / var(--n));right:calc(50% / var(--n));height:2px;background:linear-gradient(90deg,var(--green),var(--lime))}
.tl{text-align:center;padding:0 10px;position:relative}
.tl .dot{width:56px;height:56px;margin:0 auto 18px;border-radius:50%;background:#fff;border:2px solid var(--green);display:grid;place-items:center;font-weight:800;color:var(--green)}
.tl strong{display:block;font-size:17px;margin-bottom:6px}
.tl small{color:var(--muted);font-size:14px;line-height:1.6;display:block}

/* project feature */
.project{position:relative;border-radius:40px 0 40px 0;overflow:hidden;min-height:560px;display:flex;align-items:flex-end;margin-top:50px}
.project>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.project::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(9,38,26,.75),rgba(9,38,26,0) 60%)}
.project-card{position:relative;z-index:1;background:#fff;margin:36px;padding:40px;border-radius:32px 0 32px 0;max-width:580px}
.project-card h3{font-size:30px;letter-spacing:-1px;margin:8px 0 12px;line-height:1.35;font-weight:600}
.project-card p{color:var(--muted);margin:0}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 24px}
.chips span{font-size:13px;font-weight:700;color:var(--green);background:var(--sand);padding:6px 12px;border-radius:20px}

/* works: before & after */
.works-hint{font-size:14px;color:var(--muted);display:flex;align-items:center;gap:8px;margin-top:36px}
.works-hint::before{content:"↔";display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--sand);color:var(--green);font-weight:800}
.cases{display:flex;flex-wrap:wrap;justify-content:center;gap:24px;margin-top:22px}
.cases .case{width:calc((100% - 48px) / 3)}
.collapsible:not(.open) .cases,.collapsible:not(.open) .works-hint{display:none}
.collapsible.open .cases{animation:reveal .45s ease}
@keyframes reveal{from{opacity:0;transform:translateY(16px)}}
.case{border:1px solid var(--line);border-radius:28px 0 28px 0;overflow:hidden;background:#fff}
.ba{position:relative;aspect-ratio:4/3;overflow:hidden;--pos:50%;user-select:none}
.ba img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.ba .after{clip-path:inset(0 0 0 var(--pos))}
.ba-line{position:absolute;top:0;bottom:0;left:var(--pos);width:2px;background:#fff;transform:translateX(-1px);pointer-events:none}
.ba-line::after{content:"‹ ›";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:38px;height:38px;border-radius:50%;background:#fff;color:var(--green);font-weight:800;font-size:15px;display:grid;place-items:center;box-shadow:0 4px 14px rgba(0,0,0,.2)}
.ba input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:ew-resize}
.ba-tag{position:absolute;top:12px;font-size:12px;font-weight:700;color:#fff;background:rgba(15,46,31,.72);padding:4px 10px;border-radius:20px;pointer-events:none}
.ba-tag.l{left:12px}.ba-tag.r{right:12px;background:rgba(29,106,67,.88)}
.case-body{padding:22px 24px 26px}
.case-meta{display:flex;gap:8px;font-size:12px;font-weight:700}
.case-meta span{background:#fff;border:1px solid var(--line);padding:3px 10px;border-radius:20px;color:var(--muted)}
.case-meta .region{background:var(--ink);border-color:var(--ink);color:#fff}
.case h3{font-size:19px;font-weight:600;margin:12px 0 4px;letter-spacing:-.5px}
.case .agency{margin:0;font-size:14px;color:var(--muted)}
.case .agency b{color:var(--green);font-weight:700}
.case .report{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-size:13px;font-weight:700;color:var(--green);border-bottom:1px solid currentColor;padding-bottom:1px}
.case a.report:hover{color:var(--ink)}
.case span.report{cursor:default}

/* lists & tables */
.two{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
.info{width:100%;border-collapse:collapse;font-size:15px;background:#fff;border-radius:20px;overflow:hidden}
.info th,.info td{padding:16px 20px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.info th{width:150px;color:var(--muted);font-weight:700;background:var(--sand)}
.info tr:last-child th,.info tr:last-child td{border-bottom:0}
.box{background:#fff;border:1px solid var(--line);border-radius:28px 0 28px 0;padding:32px}
.box h3{margin:0 0 12px;font-size:20px;font-weight:600}
.pending{border:1.5px dashed #b9c8b0;border-radius:24px;padding:34px;text-align:center;color:var(--muted);background:#fff;margin-top:40px}
.pending b{display:block;color:var(--ink);font-size:17px;margin-bottom:6px}
.deliver{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:40px}
.deliver div{background:#fff;border:1px solid var(--line);border-radius:20px 0 20px 0;padding:22px 24px}
.deliver b{display:block;font-size:16px;margin-bottom:4px}
.deliver span{font-size:14px;color:var(--muted)}

/* why: overgrowth issues */
.why{display:grid;gap:14px}
.why-item{display:flex;gap:16px;align-items:flex-start;background:var(--sand);border:1px solid var(--line);border-radius:20px 0 20px 0;padding:20px 22px}
.why-item svg{flex:none;width:30px;height:30px;color:var(--green)}
.why-item b{display:block;font-size:16px;margin-bottom:2px}
.why-item span{font-size:14px;color:var(--muted)}
.why-goal{background:var(--deep);color:#fff;border-radius:20px 0 20px 0;padding:22px 24px;font-size:15px;line-height:1.7}
.why-goal b{color:var(--leaf);display:block;font-size:13px;letter-spacing:1px;margin-bottom:4px}
.desc+.desc{margin-top:14px}
.why-band{display:grid;grid-template-columns:1fr 1.25fr;gap:60px;align-items:center}
.why-band .title{color:#fff}
.why-band .more{color:var(--leaf);display:inline-block;margin-top:24px}
.why-mini{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.why-mini div{border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.05);border-radius:20px 0 20px 0;padding:22px 20px}
.why-mini svg{width:30px;height:30px;color:var(--leaf);margin-bottom:12px}
.why-mini b{display:block;font-size:16px;margin-bottom:4px}
.why-mini span{font-size:13.5px;color:#c4d7c9;line-height:1.6;display:block}

/* dark band */
.dark{background:var(--deep);color:#fff}
.dark .label{color:var(--leaf)}
.dark .desc{color:#c4d7c9}

/* contact */
.contact-box{background:linear-gradient(120deg,#2c5442,#46705a 60%,#6a8a68);color:#fff;border-radius:var(--leafR);padding:70px;display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:center}
.contact-box .label{color:var(--leaf)}
.contact-box .title{margin-bottom:12px}
.contact-box p{margin:0;color:#dbe7dd}
.contact-info{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);border-radius:24px;padding:30px}
.contact-info dl{margin:0 0 22px;display:grid;grid-template-columns:auto 1fr;gap:6px 16px;font-size:15px}
.contact-info dt{font-weight:800}
.contact-info dd{margin:0}
.cta-sec{padding:0 0 0}

/* form */
.form{display:grid;gap:16px}
.form .row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form label{display:grid;gap:6px;font-size:14px;font-weight:700}
.form input,.form select,.form textarea{font:inherit;font-weight:400;font-size:15px;padding:13px 15px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink)}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--leaf);border-color:var(--green)}
.form textarea{min-height:160px;resize:vertical}
.form .agree{display:flex;gap:10px;align-items:flex-start;font-weight:400;font-size:13.5px;color:var(--muted)}
.form .agree input{margin-top:5px}
.types{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:40px}

/* footer */
footer{padding:40px 0;font-size:13px;color:var(--muted);border-top:1px solid var(--line);margin-top:110px}
.foot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px}
.foot p{margin:2px 0}
.foot .logo{font-size:20px;color:var(--ink)}
.foot .logo img{height:28px}

@media(max-width:900px){
  .head{height:66px}
  nav{display:none;position:absolute;top:66px;left:0;right:0;background:#fff;padding:16px 20px 22px;flex-direction:column;align-items:stretch;border-bottom:1px solid var(--line)}
  nav.open{display:flex}
  nav .cta{margin:6px 0 0;text-align:center}
  .menu{display:block}
  .hero{padding:40px 0 70px}
  .hero-grid,.svc,.contact-box,.two,.why-band{grid-template-columns:1fr;gap:34px}
  .why-mini{grid-template-columns:1fr}
  .hero-visual img{height:380px;border-radius:64px 0 64px 0}
  .badge{left:16px;bottom:-26px}
  .values,.biz,.types,.deliver{grid-template-columns:1fr}
  .cases .case{width:100%}
  .svc{margin-top:56px}
  .svc.rev .svc-img{order:0}
  .svc-img img{height:280px}
  .timeline{grid-template-columns:1fr;gap:22px}
  .timeline::before{top:0;bottom:0;left:27px;right:auto;width:2px;height:auto;background:linear-gradient(180deg,var(--green),var(--lime))}
  .tl{display:grid;grid-template-columns:56px 1fr;gap:0 18px;text-align:left;padding:0}
  .tl .dot{margin:0;grid-row:span 2}
  .tl strong{margin-top:4px}
  .sec{padding:76px 0}
  .page-hero{padding:48px 0 44px}
  .project{min-height:480px}
  .project-card{margin:16px;padding:26px}
  .contact-box{padding:40px 26px;border-radius:56px 0 56px 0}
  .form .row{grid-template-columns:1fr}
  .info th{width:110px}
  footer{margin-top:76px}
}
@media(max-width:450px){.wrap{padding:0 20px}.hero h1{letter-spacing:-1.5px}}