/* =========================================================
   온닷 (on Dot) — 랜딩 스타일 (정적 골격)
   브랜드 토큰: 명세 §0 고정
   ========================================================= */

/* ---- 폰트 ---- */
@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.css");
@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&display=swap");

/* ---- 토큰 ---- */
:root{
  --ink:#1A1A1C; --ink2:#56565C; --line:#E4E2DC;
  --acc:#E8503A; --acc-d:#C13C28; --tint:#FBEDE9;
  --soft:#F7F6F2; --dark:#161618;
  --white:#FFFFFF;

  --kr:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,system-ui,"Segoe UI",sans-serif;
  --en:"Space Grotesk",var(--kr);

  --wrap:1200px;
  --pad:24px;
  --radius:16px;
  --shadow:0 1px 2px rgba(26,26,28,.04), 0 8px 30px rgba(26,26,28,.06);
  --header-h:68px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---- 리셋 ---- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--kr);
  color:var(--ink);
  background:var(--white);
  line-height:1.6;
  font-size:16px;
  letter-spacing:-.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
ul{list-style:none}

/* ---- 유틸 ---- */
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--pad)}
.en{font-family:var(--en);font-feature-settings:"tnum" 1}
.dot{color:var(--acc)}
.acc{color:var(--acc)}
.eyebrow{
  font-family:var(--en);
  font-size:13px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--acc);
  display:inline-flex;align-items:center;gap:8px;
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--acc)}
.section{padding:96px 0}
.section-soft{background:var(--soft)}
.section-dark{background:var(--dark);color:#EDECE8}
.sec-head{max-width:680px;margin-bottom:48px}
.sec-head h2{
  font-size:clamp(26px,3.4vw,40px);line-height:1.18;font-weight:700;letter-spacing:-.02em;
}
.sec-head p{margin-top:16px;color:var(--ink2);font-size:17px}
.section-dark .sec-head p{color:#A6A5A1}

/* ---- 버튼 ---- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 26px;border-radius:999px;
  font-size:15.5px;font-weight:600;letter-spacing:-.01em;
  transition:transform .2s var(--ease), background .2s, color .2s, box-shadow .2s;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-acc{background:var(--acc);color:#fff}
.btn-acc:hover{background:var(--acc-d);box-shadow:0 10px 24px rgba(232,80,58,.28)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--ink);background:var(--ink);color:#fff}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#000}
.btn-sm{height:44px;padding:0 20px;font-size:14.5px}
.btn-lg{height:58px;padding:0 32px;font-size:16.5px}

/* =========================================================
   S0. 헤더
   ========================================================= */
.site-header{
  position:sticky;top:0;z-index:100;
  height:var(--header-h);
  background:rgba(255,255,255,.82);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .25s, box-shadow .25s;
}
.site-header.scrolled{border-color:var(--line);box-shadow:0 1px 20px rgba(0,0,0,.04)}
.header-inner{
  height:100%;max-width:var(--wrap);margin:0 auto;padding:0 var(--pad);
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.logo{
  font-family:var(--en);font-weight:700;font-size:22px;letter-spacing:-.02em;
  display:inline-flex;align-items:baseline;
}
.logo b{font-weight:700}
.logo .dot{font-size:26px;line-height:0;margin-left:1px}
.nav{display:flex;align-items:center;gap:30px}
.nav a{font-size:15px;font-weight:500;color:var(--ink2);transition:color .18s;position:relative}
.nav a:hover{color:var(--ink)}
.header-cta{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:44px;height:44px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1.5px solid var(--line);color:var(--ink);transition:.18s;
}
.icon-btn:hover{border-color:var(--ink);background:var(--soft)}
.icon-btn svg{width:20px;height:20px}
.hamburger{display:none;width:44px;height:44px;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.hamburger span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.25s var(--ease)}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 모바일 드로어 */
.drawer{
  position:fixed;inset:var(--header-h) 0 0;z-index:99;
  background:#fff;padding:28px var(--pad) 40px;
  transform:translateX(100%);transition:transform .32s var(--ease);
  display:flex;flex-direction:column;
}
.drawer.open{transform:translateX(0)}
.drawer a{padding:16px 0;font-size:20px;font-weight:600;border-bottom:1px solid var(--line)}
.drawer .drawer-cta{margin-top:auto;display:flex;flex-direction:column;gap:12px}

/* 모바일 하단 고정 CTA 바 */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  display:none;grid-template-columns:1fr 1fr 1fr;gap:1px;
  background:var(--line);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-bar a{
  background:#fff;padding:14px 6px;text-align:center;
  font-size:12.5px;font-weight:600;color:var(--ink);
  display:flex;flex-direction:column;align-items:center;gap:5px;
}
.mobile-bar a.primary{background:var(--acc);color:#fff}
.mobile-bar svg{width:20px;height:20px}

/* =========================================================
   S1. 히어로
   ========================================================= */
.hero{position:relative;padding:64px 0 88px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{
  font-size:clamp(34px,5.2vw,62px);line-height:1.08;font-weight:700;letter-spacing:-.03em;
}
.hero h1 .line{display:block}
.hero p.lead{margin-top:24px;font-size:clamp(16px,1.5vw,19px);color:var(--ink2);max-width:30em}
.hero-cta{margin-top:36px;display:flex;flex-wrap:wrap;gap:12px}
.hero-meta{margin-top:28px;display:flex;gap:22px;flex-wrap:wrap;color:var(--ink2);font-size:14px}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta i{width:6px;height:6px;border-radius:50%;background:var(--acc);display:inline-block}

/* 히어로 비주얼 — 점 모티프 그래픽 (이미지 대체 플레이스홀더) */
.hero-visual{
  position:relative;aspect-ratio:4/5;border-radius:24px;overflow:hidden;
  background:
    radial-gradient(120% 120% at 80% 15%, rgba(232,80,58,.16), transparent 45%),
    linear-gradient(150deg,#20201f,#2c2b29 60%,#161618);
  box-shadow:var(--shadow);
  display:flex;align-items:flex-end;
}
.hero-visual .badge{
  position:absolute;top:20px;left:20px;
  font-family:var(--en);font-size:12px;font-weight:600;letter-spacing:.1em;
  color:#fff;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);
  padding:7px 12px;border-radius:999px;backdrop-filter:blur(6px);
}
.hero-visual .dots{position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.14) 1.4px,transparent 1.6px);background-size:26px 26px;opacity:.5}
.hero-visual .caption{position:relative;padding:26px;color:#EDECE8;z-index:1}
.hero-visual .caption .big{font-family:var(--en);font-size:clamp(30px,4vw,46px);font-weight:700;line-height:1}
.hero-visual .caption .sub{margin-top:8px;font-size:14px;color:#B7B5B0}

/* =========================================================
   S2. 신뢰 바
   ========================================================= */
.trustbar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--soft)}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
.trust-grid .cell{background:var(--soft);padding:32px 22px;text-align:center}
.trust-grid .num{font-family:var(--en);font-size:clamp(26px,3vw,36px);font-weight:700;letter-spacing:-.02em}
.trust-grid .num .acc{color:var(--acc)}
.trust-grid .lbl{margin-top:6px;font-size:13.5px;color:var(--ink2)}

/* =========================================================
   S3. 문제 공감 (Pain)
   ========================================================= */
.pain-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pain-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;transition:.22s var(--ease);
}
.pain-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:transparent}
.pain-card .n{font-family:var(--en);font-size:14px;font-weight:600;color:var(--acc)}
.pain-card h3{margin:14px 0 8px;font-size:18.5px;font-weight:600}
.pain-card p{color:var(--ink2);font-size:15px}
.pain-close{
  margin-top:40px;text-align:center;
  font-size:clamp(19px,2.4vw,26px);font-weight:600;letter-spacing:-.02em;
}
.pain-close .acc{color:var(--acc)}

/* =========================================================
   S4. 서비스 3계층
   ========================================================= */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.svc-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 28px 28px;display:flex;flex-direction:column;transition:.24s var(--ease);overflow:hidden;
}
.svc-card::after{content:"";position:absolute;inset:0 0 auto;height:3px;background:var(--acc);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.svc-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.svc-card:hover::after{transform:scaleX(1)}
.svc-card.feature{background:var(--ink);color:#fff;border-color:var(--ink)}
.svc-card.feature .svc-price{color:#fff}
.svc-card.feature .svc-desc{color:#B7B5B0}
.svc-card .tag{
  align-self:flex-start;font-family:var(--en);font-size:11.5px;font-weight:600;letter-spacing:.08em;
  text-transform:uppercase;padding:6px 11px;border-radius:999px;background:var(--tint);color:var(--acc-d);margin-bottom:18px;
}
.svc-card.feature .tag{background:var(--acc);color:#fff}
.svc-card h3{font-size:21px;font-weight:700;letter-spacing:-.01em}
.svc-desc{margin:10px 0 20px;font-size:14.5px;color:var(--ink2);flex:1}
.svc-price{font-family:var(--en);font-size:15px;font-weight:600;color:var(--ink);margin-bottom:20px}
.svc-price small{font-family:var(--kr);font-weight:500;color:var(--ink2);font-size:13px}
.svc-list{margin-bottom:24px;display:flex;flex-direction:column;gap:9px}
.svc-list li{font-size:14px;color:var(--ink2);display:flex;gap:9px;align-items:flex-start}
.svc-card.feature .svc-list li{color:#CFCEC9}
.svc-list li::before{content:"";flex:none;margin-top:7px;width:5px;height:5px;border-radius:50%;background:var(--acc)}
.svc-card .btn{margin-top:auto}

/* =========================================================
   S5. 포트폴리오 프리뷰 (비포/애프터)
   ========================================================= */
.folio-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.compare{
  position:relative;aspect-ratio:16/10;border-radius:var(--radius);overflow:hidden;
  background:var(--soft);border:1px solid var(--line);user-select:none;
}
.compare .layer{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-family:var(--en);font-weight:700;font-size:clamp(20px,3vw,34px);letter-spacing:.02em}
.compare .before{background:linear-gradient(135deg,#d8d5cd,#bcb8ae);color:#6b6860}
.compare .after{background:linear-gradient(135deg,#2a2926,#161618);color:#fff;clip-path:inset(0 0 0 50%)}
.compare .divider{position:absolute;top:0;bottom:0;left:50%;width:2px;background:#fff;box-shadow:0 0 0 1px rgba(0,0,0,.06);pointer-events:none}
.compare .handle{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:42px;height:42px;border-radius:50%;background:#fff;box-shadow:var(--shadow);
  display:flex;align-items:center;justify-content:center;pointer-events:none;color:var(--acc)
}
.compare input[type=range]{
  position:absolute;inset:0;width:100%;height:100%;margin:0;
  -webkit-appearance:none;appearance:none;background:transparent;cursor:ew-resize;opacity:0;
}
.compare .lbl{position:absolute;bottom:12px;font-family:var(--en);font-size:11px;font-weight:600;letter-spacing:.1em;padding:5px 10px;border-radius:999px;background:rgba(0,0,0,.5);color:#fff;pointer-events:none}
.compare .lbl.b{left:12px}
.compare .lbl.a{right:12px}
.folio-cap{margin-top:14px;display:flex;justify-content:space-between;align-items:center}
.folio-cap h4{font-size:16px;font-weight:600}
.folio-cap span{font-size:12.5px;color:var(--ink2);font-family:var(--en);text-transform:uppercase;letter-spacing:.06em}
.folio-more{margin-top:44px;text-align:center}

/* =========================================================
   S6. 프로세스 4단계
   ========================================================= */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.step{position:relative;padding:0 22px}
.step:not(:last-child)::after{content:"";position:absolute;top:26px;right:-1px;width:2px;height:calc(100% - 26px);background:none}
.step .dotnum{
  width:52px;height:52px;border-radius:50%;background:#fff;border:1.5px solid var(--line);
  display:flex;align-items:center;justify-content:center;font-family:var(--en);font-weight:700;font-size:18px;
  position:relative;z-index:1;
}
.step.on .dotnum{background:var(--acc);border-color:var(--acc);color:#fff}
.step h3{margin:18px 0 6px;font-size:17.5px;font-weight:600}
.step .days{font-family:var(--en);font-size:12.5px;font-weight:600;color:var(--acc);letter-spacing:.04em}
.step p{margin-top:8px;font-size:14px;color:var(--ink2)}
.steps-line{position:absolute;top:26px;left:52px;right:52px;height:2px;background:var(--line);z-index:0}

/* =========================================================
   S7. 차별점 — 개발자가 만드는 스튜디오
   ========================================================= */
.diff-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.diff-points{display:flex;flex-direction:column;gap:8px}
.diff-point{display:flex;gap:20px;padding:24px 0;border-top:1px solid var(--line)}
.diff-point:last-child{border-bottom:1px solid var(--line)}
.diff-point .idx{font-family:var(--en);font-size:14px;font-weight:600;color:var(--acc);flex:none;width:36px}
.diff-point h3{font-size:18.5px;font-weight:600;margin-bottom:6px}
.diff-point p{font-size:15px;color:var(--ink2)}
.diff-visual{
  aspect-ratio:1;border-radius:24px;position:relative;overflow:hidden;
  background:linear-gradient(150deg,#1d1c1b,#161618);box-shadow:var(--shadow);
  display:flex;align-items:center;justify-content:center;
}
.diff-visual .mono{
  font-family:var(--en);color:#6a6862;font-size:13px;line-height:1.7;white-space:pre;
  padding:32px;width:100%;
}
.diff-visual .mono .k{color:#E8503A}
.diff-visual .mono .s{color:#8f8d86}
.diff-visual .glow{position:absolute;width:60%;height:60%;background:radial-gradient(circle,rgba(232,80,58,.22),transparent 60%);top:10%;right:-10%}

/* =========================================================
   S8. 지원사업 배너
   ========================================================= */
.gov-banner{background:var(--dark)}
.gov-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.gov-inner .txt{max-width:620px}
.gov-inner .eyebrow{color:var(--acc)}
.gov-inner h2{color:#fff;font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.25;letter-spacing:-.02em}
.gov-inner p{margin-top:12px;color:#A6A5A1;font-size:15.5px}

/* =========================================================
   S9. 후기
   ========================================================= */
.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;display:flex;flex-direction:column}
.review .quote{font-family:var(--en);font-size:34px;line-height:0;color:var(--acc);height:20px}
.review p{margin:16px 0 20px;font-size:15px;color:var(--ink);flex:1}
.review .author{display:flex;align-items:center;gap:12px}
.review .avatar{width:38px;height:38px;border-radius:50%;background:var(--tint);color:var(--acc-d);display:flex;align-items:center;justify-content:center;font-weight:700;font-family:var(--en)}
.review .author b{font-size:14.5px;font-weight:600}
.review .author span{display:block;font-size:12.5px;color:var(--ink2)}

/* =========================================================
   S10. FAQ
   ========================================================= */
.faq-wrap{max-width:820px;margin:0 auto}
.faq{border-top:1px solid var(--line)}
.faq:last-child{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;padding:24px 4px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:17.5px;font-weight:600;letter-spacing:-.01em;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary .plus{flex:none;width:26px;height:26px;position:relative;transition:transform .3s var(--ease)}
.faq summary .plus::before,.faq summary .plus::after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--acc)}
.faq summary .plus::before{width:14px;height:2px}
.faq summary .plus::after{width:2px;height:14px;transition:transform .3s var(--ease)}
.faq[open] summary .plus::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq .ans{padding:0 4px 26px;color:var(--ink2);font-size:15.5px;max-width:64ch}
.faq-more{text-align:center;margin-top:36px}

/* =========================================================
   S11. 최종 CTA
   ========================================================= */
.final{background:var(--tint);text-align:center;border-radius:0}
.final .inner{max-width:720px;margin:0 auto}
.final h2{font-size:clamp(28px,4vw,46px);font-weight:700;letter-spacing:-.02em;line-height:1.12}
.final p{margin-top:18px;color:var(--ink2);font-size:17px}
.final .final-cta{margin-top:34px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.final .contact-line{margin-top:28px;font-size:14.5px;color:var(--ink2)}
.final .contact-line a{font-family:var(--en);font-weight:600;color:var(--ink)}

/* =========================================================
   푸터
   ========================================================= */
.site-footer{background:var(--dark);color:#9c9a95;padding:64px 0 40px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand .logo{color:#fff;font-size:24px;margin-bottom:16px}
.footer-brand p{font-size:14px;color:#7d7b76;max-width:26em}
.footer-col h5{color:#EDECE8;font-size:13px;font-weight:600;letter-spacing:.04em;margin-bottom:16px;text-transform:uppercase;font-family:var(--en)}
.footer-col a{display:block;padding:6px 0;font-size:14px;color:#9c9a95;transition:color .16s}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;padding-top:28px;font-size:13px;color:#6c6a65}
.footer-bottom .social{display:flex;gap:14px}
.footer-bottom .social a{width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;color:#9c9a95;transition:.18s}
.footer-bottom .social a:hover{border-color:var(--acc);color:#fff;background:var(--acc)}
.footer-bottom .social svg{width:18px;height:18px}

/* =========================================================
   진입 애니메이션
   ========================================================= */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* =========================================================
   반응형
   ========================================================= */
@media (max-width:960px){
  .section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{aspect-ratio:16/11;max-width:520px}
  .diff-grid{grid-template-columns:1fr;gap:36px}
  .diff-visual{max-width:420px}
  .pain-cards,.svc-grid,.reviews{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr 1fr;gap:32px 22px}
  .steps-line{display:none}
  .folio-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:720px){
  .nav,.header-cta .btn,.header-cta .phone-ico{display:none}
  .hamburger{display:flex}
  .mobile-bar{display:grid}
  body{padding-bottom:60px}
  .trust-grid{grid-template-columns:1fr 1fr}
  .trust-grid .cell:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .gov-inner{flex-direction:column;align-items:flex-start}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}