@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable-dynamic-subset.css');

:root{
  --concrete:#eef0f2;
  --paper:#ffffff;
  --slate:#171d23;
  --slate-2:#232c35;
  --grey:#6c7883;
  --grey-2:#9aa4ad;
  --blue:#1b4fa0;
  --amber:#f0562a;
  --line:#d8dde2;
  --line-dark:#333d47;
  --wrap:1160px;
  --pad:24px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{
  font-family:'Pretendard Variable',Pretendard,-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
  color:var(--slate);background:var(--paper);
  font-size:16px;line-height:1.7;letter-spacing:-.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;animation-iteration-count:1!important}
  .hero-slides i,.hero-copy .slide{transition:none!important;transform:none!important}
}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--pad)}

/* ---------- 헤더 ---------- */
.hd{position:fixed;top:0;left:0;right:0;z-index:100;
  background:#fff;border-bottom:1px solid var(--line)}
.hd .wrap{display:flex;align-items:center;justify-content:space-between;height:76px}
.logo{display:flex;align-items:center}
.logo img{width:190px;height:auto}
.ft .logo img{width:170px}
.nav{display:flex;gap:34px}
.nav a{color:var(--slate);font-size:16px;font-weight:700;padding:8px 0;
  border-bottom:2px solid transparent;letter-spacing:-.02em}
.nav a:hover,.nav a.on{color:var(--blue);border-bottom-color:var(--amber)}
.hd-tel{color:var(--slate);font-weight:800;font-size:16px;letter-spacing:-.02em}
.burger{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer}
.burger span{display:block;height:2px;background:var(--slate);margin:5px 0}

/* ---------- 히어로 ---------- */
.hero{background:var(--slate);color:#fff;padding:150px 0 54px;position:relative;overflow:hidden}
.hero-slides{position:absolute;inset:0;z-index:0}
.hero-slides i{position:absolute;inset:0;background:center/cover no-repeat;
  opacity:0;transition:opacity 1.1s ease}
.hero-slides i.on{opacity:1}

/* 문구 전환 */
.hero-copy{position:relative;min-height:clamp(180px,21vw,248px)}
.hero-copy .slide{position:absolute;inset:0;opacity:0;transform:translateY(10px);
  transition:opacity .7s ease,transform .7s ease;pointer-events:none}
.hero-copy .slide.on{opacity:1;transform:none;pointer-events:auto}

/* 인디케이터 */
.hero-dots{display:flex;gap:9px;margin-top:26px}
.hero-dots button{width:34px;height:4px;border:0;padding:0;cursor:pointer;
  background:rgba(255,255,255,.32);border-radius:2px;transition:background .3s}
.hero-dots button.on{background:var(--amber)}
.hero-dots button:hover{background:rgba(255,255,255,.6)}
.hero-dots button.on:hover{background:var(--amber)}
.hero:before{content:'';position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,rgba(10,15,20,.72) 0%,rgba(10,15,20,.42) 42%,rgba(10,15,20,.10) 100%)}
.hero .wrap{position:relative;z-index:2}
.hero h1{font-size:clamp(30px,4.8vw,54px);line-height:1.16;font-weight:800;letter-spacing:-.035em;
  max-width:16ch;text-shadow:0 2px 26px rgba(0,0,0,.9),0 1px 5px rgba(0,0,0,.7)}
.hero p{margin-top:18px;color:#dce3e9;font-size:clamp(15px,1.6vw,17.5px);max-width:50ch;line-height:1.75;
  text-shadow:0 1px 18px rgba(0,0,0,.9),0 1px 4px rgba(0,0,0,.7)}
.hero-cta{margin-top:6px;display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:15px 30px;font-weight:700;font-size:15px;border:1px solid transparent;border-radius:3px}
.btn-amber{background:var(--amber);color:#fff}
.btn-amber:hover{background:#d94820}
.btn-ghost{border-color:#4a555f;color:#fff}
.btn-ghost:hover{border-color:#fff}

/* 스펙 스트립 : 이 페이지에서 가장 강한 요소 */
.specbar{background:var(--slate);color:#fff;border-top:1px solid var(--line-dark)}
.spec{display:grid;grid-template-columns:repeat(3,1fr)}
.spec div{padding:26px 0 30px;border-right:1px solid var(--line-dark)}
.spec div:last-child{border-right:0}
.spec dt{color:var(--grey-2);font-size:13px;font-weight:500}
.spec dd{font-size:clamp(26px,3.2vw,38px);font-weight:800;letter-spacing:-.03em;margin-top:6px}
.spec dd em{font-style:normal;font-size:.5em;font-weight:600;color:var(--grey-2);margin-left:4px}

/* ---------- 섹션 ---------- */
.sec{padding:clamp(70px,9vw,120px) 0}
.sec.alt{background:var(--concrete)}
.sec.dark{background:var(--slate);color:#fff}
.sec-hd{margin-bottom:48px;max-width:44ch}
.sec-hd h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;letter-spacing:-.03em;line-height:1.25}
.sec-hd .en{display:block;font-size:13px;color:var(--blue);font-weight:600;margin-bottom:12px;letter-spacing:.02em}
.sec.dark .sec-hd .en{color:#7fa6e0}
.sec-hd p{margin-top:16px;color:var(--grey);line-height:1.8}
.sec.dark .sec-hd p{color:#a8b3bd}

/* 본문 리스트 */
.deflist{border-top:1px solid var(--line)}
.deflist>div{display:grid;grid-template-columns:210px 1fr;gap:24px;
  padding:22px 0;border-bottom:1px solid var(--line)}
.deflist dt{font-weight:700;color:var(--blue)}
.deflist dd{color:#3d474f;line-height:1.75}
.sec.dark .deflist{border-color:var(--line-dark)}
.sec.dark .deflist>div{border-color:var(--line-dark)}
.sec.dark .deflist dt{color:#8fb2e8}
.sec.dark .deflist dd{color:#c3ccd4}

/* 탭 */
.tabs{display:flex;gap:6px;margin-bottom:30px;flex-wrap:wrap}
.tabs a{text-decoration:none}
.tabs button{background:none;border:1px solid var(--line);border-radius:3px;
  padding:11px 22px;font:inherit;font-weight:600;font-size:14.5px;color:var(--grey);cursor:pointer}
.tabs button[aria-selected="true"]{background:var(--slate);border-color:var(--slate);color:#fff}
.panel[hidden]{display:none}

/* 시공 순서 : 실제 순서가 있는 내용이라 번호 사용 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
.steps li{background:var(--paper);padding:0 0 20px;list-style:none}
.sec.alt .steps li{background:var(--concrete)}
.steps .sph{aspect-ratio:1/1;background:#e2e6ea;overflow:hidden;margin-bottom:14px}
.steps .sph img{width:100%;height:100%;object-fit:cover}
.steps .n{display:block;padding:0 18px;font-size:13px;font-weight:700;color:var(--amber)}
.steps h4{margin-top:3px;padding:0 18px;font-size:16px;font-weight:700}

/* 적용분야 */
.fields{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;
  list-style:none;max-width:900px;margin:0 auto}
.fields li{background:var(--paper);border:1px solid var(--line);border-radius:999px;
  padding:11px 20px;font-size:15px;font-weight:600;color:#33404b;letter-spacing:-.02em}
.fields li:nth-child(3n+1){border-color:#bcd0ea;color:var(--blue)}

/* 시공 사진 갤러리 */
.shots{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:32px}
.shots .shot{display:block;aspect-ratio:4/3;overflow:hidden;border-radius:3px;background:#e2e6ea}
.shots img{width:100%;height:100%;object-fit:cover}
.shots .shot:hover img{opacity:.88}

/* 카드 그리드 */
.grid{display:grid;gap:20px}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{border:1px solid var(--line);border-radius:4px;overflow:hidden;background:var(--paper)}
.card .ph{aspect-ratio:4/3;background:#dfe3e7;display:flex;align-items:center;
  justify-content:center;color:var(--grey-2);font-size:13px}
.card .ph img{width:100%;height:100%;object-fit:cover}
.card .tx{padding:14px 16px}
.works .card{transition:border-color .2s}
.works .card:hover{border-color:var(--blue)}
.works .ph img{transition:transform .35s}
.works .card:hover .ph img{transform:scale(1.04)}
.works .ph{overflow:hidden}
.card h4{font-size:16px;font-weight:700;line-height:1.45}
.card time{display:block;margin-top:6px;font-size:13px;color:var(--grey-2)}

/* 증명서 */
.certs{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.certs a{border:1px solid var(--line);background:var(--paper);padding:14px;border-radius:4px;text-align:center}
.certs .ph{aspect-ratio:3/4;background:#e4e8ec;display:flex;align-items:center;justify-content:center;color:var(--grey-2);font-size:13px;overflow:hidden}
.certs .ph img{width:100%;height:100%;object-fit:cover;object-position:top}
.certs span{display:block;margin-top:12px;font-size:14px;font-weight:600}

/* ---------- 견적문의 폼 ---------- */
.form{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:14px;font-weight:600}
.field label i{color:var(--amber);font-style:normal;margin-left:3px}
.field input,.field textarea{
  font:inherit;padding:13px 14px;border:1px solid var(--line);border-radius:3px;
  background:var(--paper);color:var(--slate);width:100%}
.field textarea{min-height:150px;resize:vertical}
.field input:focus,.field textarea:focus{border-color:var(--blue);outline:none;
  box-shadow:0 0 0 3px rgba(27,79,160,.12)}
.form .submit{grid-column:1/-1;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.msg{padding:14px 16px;border-radius:3px;font-size:14.5px;font-weight:600;margin-bottom:22px}
.msg.ok{background:#e7f2ea;color:#1d6b3a;border:1px solid #b9dcc5}
.msg.no{background:#fdecea;color:#a3271a;border:1px solid #f2c2bb}
.err{color:var(--amber);font-size:13.5px;font-weight:600}

/* 연락처 */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
#map{width:100%;height:400px;border:1px solid var(--line);border-radius:4px;background:var(--concrete)}

/* ---------- 서브페이지 ---------- */
.page-hd{background:var(--slate);color:#fff;padding:140px 0 56px}
.page-hd h1{font-size:clamp(26px,3.6vw,38px);font-weight:800;letter-spacing:-.03em}
.page-hd p{margin-top:10px;color:#a8b3bd}

.tbl{width:100%;border-collapse:collapse;border-top:2px solid var(--slate)}
.tbl th,.tbl td{padding:16px 12px;border-bottom:1px solid var(--line);font-size:15px;text-align:left}
.tbl th{background:var(--concrete);font-weight:700;font-size:14px}
.tbl td.num,.tbl th.num{width:70px;text-align:center;color:var(--grey)}
.tbl td.date,.tbl th.date{width:120px;color:var(--grey);font-size:14px}
.tbl tbody tr:hover{background:#f7f8f9}
.tbl .empty{text-align:center;padding:60px 0;color:var(--grey)}

.pager{display:flex;justify-content:center;gap:6px;margin-top:36px}
.pager a,.pager strong{padding:9px 14px;border:1px solid var(--line);border-radius:3px;font-size:14px}
.pager strong{background:var(--slate);border-color:var(--slate);color:#fff}

.view{border-top:2px solid var(--slate)}
.view .vh{padding:26px 0;border-bottom:1px solid var(--line)}
.view .vh h2{font-size:23px;font-weight:800;letter-spacing:-.02em}
.view .vh time{display:block;margin-top:8px;color:var(--grey);font-size:14px}
.view .vb{padding:34px 0;border-bottom:1px solid var(--line);line-height:1.85;min-height:220px}
.attach{display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding:16px 18px;background:var(--concrete);border:1px solid var(--line);
  border-top:0;border-radius:0 0 4px 4px}
.attach .lbl{font-size:13px;font-weight:700;color:var(--grey)}
.attach a{font-weight:600;color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.attach a em{font-style:normal;font-weight:500;color:var(--grey);margin-left:8px;font-size:13px}
.clip{display:inline-block;margin-left:8px;padding:2px 7px;border-radius:2px;
  background:var(--blue);color:#fff;font-size:11px;font-weight:700;vertical-align:middle}
.view .vb img{margin:16px 0;border-radius:4px}

/* ---------- 푸터 ---------- */
.ft{background:var(--slate);color:#94a0aa;padding:56px 0 40px;font-size:14px}
.ft .top{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;
  padding-bottom:26px;border-bottom:1px solid var(--line-dark)}
.ft .logo b{font-size:17px}
.ft .info p{margin-top:5px;line-height:1.7}
.ft .cc{margin-top:22px;font-size:13px;color:#6b7883}
.ft a:hover{color:#fff}
.ft .call{color:#fff;font-weight:800;font-size:24px;letter-spacing:-.02em}
.ft .call small{display:block;font-size:13px;font-weight:500;color:#94a0aa;letter-spacing:0}

/* ---------- 관리자 ---------- */
.adm-bar{background:var(--slate);color:#fff;padding:0}
.adm-bar .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.adm-bar nav{display:flex;gap:22px}
.adm-bar a{color:#c9d1d8;font-size:15px;font-weight:500}
.adm-bar a:hover,.adm-bar a.on{color:#fff}
.adm-wrap{max-width:1000px;margin:0 auto;padding:40px var(--pad) 90px}
.adm-wrap h1{font-size:24px;font-weight:800;margin-bottom:24px;letter-spacing:-.02em}
.login-box{max-width:380px;margin:14vh auto;padding:0 var(--pad)}
.login-box h1{font-size:22px;margin-bottom:20px}
.bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;gap:12px;flex-wrap:wrap}
.btn-sm{display:inline-block;padding:9px 16px;font-size:14px;font-weight:600;
  border-radius:3px;border:1px solid var(--line);background:var(--paper);cursor:pointer;font-family:inherit}
.btn-sm.primary{background:var(--slate);border-color:var(--slate);color:#fff}
.btn-sm.danger{color:#b3261e;border-color:#e8c4c0}

@media (max-width:900px){
  .nav{display:none}
  .burger{display:block}
  .nav.open{display:flex;position:absolute;top:76px;left:0;right:0;background:#fff;
    flex-direction:column;gap:0;padding:6px 0;border-bottom:1px solid var(--line)}
  .nav.open a{padding:14px var(--pad);border-bottom:0}
  .hd-tel{display:none}
  .g3,.g4,.certs,.shots{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .contact,.form{grid-template-columns:1fr}
  .deflist>div{grid-template-columns:1fr;gap:6px}
  .spec{grid-template-columns:1fr}
  .spec div{border-right:0;border-bottom:1px solid var(--line-dark);padding:18px 0}
  .spec div:last-child{border-bottom:0}
  .hero{padding:112px 0 44px}
  .hero-copy{min-height:210px}
  .fields li{font-size:14px;padding:9px 16px}
  .page-hd{padding:118px 0 44px}
}
@media (max-width:560px){
  .g3,.g4,.certs{grid-template-columns:1fr}
  .steps,.shots{grid-template-columns:repeat(2,1fr)}
  .tbl td.date,.tbl th.date{display:none}
}