/* 기본 정리 (브라우저마다 다른 기본 모양을 맞춥니다) */
html{-webkit-text-size-adjust:100%}
:root{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
body{margin:0}
img{max-width:100%}
[hidden]{display:none!important}
/* Layout: 자재 카탈로그. 위 고정 머리글 + 해시로 바뀌는 화면들 + 휴대폰 아래 고정 문의 바.
   색: 회녹색 잉크와 무광 청동 포인트(나무와 금속). 글꼴: 제목 Plex Sans KR, 본문 Noto Sans KR, 코드·규격 Plex Mono. */
:root{
  --bg:#F3F4F1; --surface:#FFFFFF; --sunk:#E8EAE5; --ink:#1C2321; --muted:#5B6560; --line:#D5DAD4;
  --accent:#8C6230; --accent-ink:#FFFFFF; --steel:#34474F; --ok:#2F6B4A; --ph:#B07A1E;
  --f-display:"IBM Plex Sans KR","Noto Sans KR","Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  --f-body:"Noto Sans KR","Apple SD Gothic Neo","Malgun Gothic",sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Consolas,monospace;
  --r:6px;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#121715; --surface:#1A201E; --sunk:#232A27; --ink:#E7EBE7; --muted:#9AA49F; --line:#2D3632;
  --accent:#D39C5A; --accent-ink:#1B1207; --steel:#A9BEC6; --ok:#7CC39B; --ph:#E2AE4E; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#121715; --surface:#1A201E; --sunk:#232A27; --ink:#E7EBE7; --muted:#9AA49F; --line:#2D3632;
  --accent:#D39C5A; --accent-ink:#1B1207; --steel:#A9BEC6; --ok:#7CC39B; --ph:#E2AE4E; color-scheme:dark}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*{transition:none!important}}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.65;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:60;background:var(--surface)}
h1,h2,h3,h4{font-family:var(--f-display);line-height:1.25;margin:0;text-wrap:balance;letter-spacing:-0.01em}
p{margin:0}
a{color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.mono{font-family:var(--f-mono);font-variant-numeric:tabular-nums}
.wrap{max-width:1200px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.eyebrow{font-family:var(--f-mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.ph{border-bottom:1px dashed var(--ph);color:inherit;cursor:help}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r);border:1px solid var(--line);background:var(--surface);text-decoration:none;font-weight:500;cursor:pointer;white-space:nowrap}
.btn:hover{border-color:var(--ink)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.07)}
.btn.small{height:36px;padding:0 14px;font-size:14px}

/* 시안 안내 띠 */
.demo-bar{background:var(--steel);color:var(--bg);font-size:13px}
.demo-bar .wrap{display:flex;gap:12px;align-items:center;justify-content:space-between;padding-block:8px;flex-wrap:wrap}
.demo-bar button{background:none;border:1px solid currentColor;border-radius:4px;color:inherit;padding:2px 10px;font-size:12px;cursor:pointer}

/* 머리글 */
header.site{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:var(--surface);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;gap:24px;height:64px}
.logo{display:flex;flex-direction:column;text-decoration:none;line-height:1.1;min-width:0}
.logo b{font-family:var(--f-display);font-size:20px;font-weight:700}
.logo small{font-family:var(--f-mono);font-size:10px;letter-spacing:.12em;color:var(--muted)}
nav.main{display:flex;gap:4px;margin-left:auto;align-items:center}
nav.main a{padding:8px 12px;border-radius:var(--r);text-decoration:none;font-weight:500;font-size:15px;color:var(--muted)}
nav.main a:hover{color:var(--ink);background:var(--sunk)}
nav.main a[aria-current="page"]{color:var(--ink);background:var(--sunk)}
.head-cta{display:flex;align-items:center;gap:12px}
.head-phone{font-family:var(--f-mono);font-weight:500;font-size:15px;white-space:nowrap}
.menu-btn{display:none;margin-left:auto;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);cursor:pointer}
@media (max-width:960px){
  .head-phone{display:none}
}
@media (max-width:820px){
  .menu-btn{display:inline-flex;align-items:center;justify-content:center}
  .head-cta{display:none}
  nav.main{display:none;position:absolute;left:0;right:0;top:64px;flex-direction:column;align-items:stretch;background:var(--surface);border-bottom:1px solid var(--line);padding:8px max(16px,env(safe-area-inset-right,0px)) 16px max(16px,env(safe-area-inset-left,0px));gap:2px}
  nav.main.open{display:flex}
  nav.main a{padding:12px}
}

main{min-height:60vh}
section.view{padding-block:0 72px}
.page-head{padding-block:48px 32px;border-bottom:1px solid var(--line);margin-bottom:40px}
.page-head h1{font-size:clamp(28px,4vw,40px);margin-top:8px}
.page-head p{color:var(--muted);margin-top:12px;max-width:62ch}

/* 메인 */
/* 첫 화면 큰 그림 (하늘·산·숲). 하늘 색은 그림 맨 위 색과 맞춤 */
.hero-band{background:linear-gradient(90deg,#318DCE 0%,#2288CA 24%,#3A90C9 50%,#509BD2 78%,#69ABDB 100%);color:#fff}
.hero-img{display:block;width:100%;height:auto}
.hero-text{padding:clamp(32px,3.6vw,56px) 16px 8px;text-align:center;text-shadow:0 1px 12px rgba(10,40,70,.45)}
.hero-text br{display:none}
.hero-text .eyebrow{color:rgba(255,255,255,.85)}
.hero-text h1{font-size:clamp(28px,3.4vw,52px);font-weight:700;margin-top:10px;color:#fff}
.hero-text p.lead{font-size:clamp(15px,1.25vw,18px);color:rgba(255,255,255,.95);margin:14px auto 0;max-width:52ch}
.hero-text .actions{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap;justify-content:center;text-shadow:none}
.btn.ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.75);color:#fff;backdrop-filter:blur(4px)}
.btn.ghost:hover{background:rgba(255,255,255,.26);border-color:#fff}

.sec{padding-block:56px;border-top:1px solid var(--line)}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:28px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(22px,3vw,30px);margin-top:6px}

.cat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
@media (max-width:900px){.cat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.cat-grid{grid-template-columns:1fr}}
.cat{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;text-decoration:none;transition:border-color .15s}
.cat:hover{border-color:var(--ink)}
.cat .swatch-strip{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;height:150px}
.cat .cover{display:block;width:100%;height:190px;object-fit:cover}
.cat .cover+.swatch-strip{height:28px}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px;margin:0 0 40px}
.gallery figure{margin:0;border-radius:var(--r);overflow:hidden;background:var(--sunk);position:relative}
.gallery img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover}
.gallery figcaption{position:absolute;left:8px;bottom:8px;max-width:calc(100% - 16px);font-size:12px;background:rgba(0,0,0,.6);color:#fff;padding:3px 7px;border-radius:3px}
.cat .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:6px;flex:1}
.cat .no{font-family:var(--f-mono);font-size:12px;color:var(--muted)}
.cat h3{font-size:22px}
.cat p{color:var(--muted);font-size:14px}
.cat .meta{margin-top:auto;padding-top:12px;display:flex;justify-content:space-between;font-size:13px;color:var(--muted);font-family:var(--f-mono)}
.cat.soon{border-style:dashed;background:transparent;justify-content:center;align-items:flex-start;padding:24px;min-height:240px}
.cat.soon h3{color:var(--muted)}

.reasons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}
@media (max-width:820px){.reasons{grid-template-columns:1fr;gap:20px}}
.reasons h3{font-size:18px;margin-bottom:6px}
.reasons p{color:var(--muted);font-size:14px}
.reasons .k{font-family:var(--f-mono);font-size:12px;color:var(--accent);margin-bottom:8px;display:block}

.trust{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
.trust div{padding:20px;border-right:1px solid var(--line);min-width:0}
.trust div:last-child{border-right:0}
.trust dt{font-size:12px;color:var(--muted)}
.trust dd{margin:4px 0 0;font-family:var(--f-display);font-weight:700;font-size:20px}
@media (max-width:820px){.trust{grid-template-columns:repeat(2,minmax(0,1fr))}.trust div:nth-child(2){border-right:0}.trust div:nth-child(-n+2){border-bottom:1px solid var(--line)}}

.cta-band{background:var(--steel);color:var(--bg);border-radius:var(--r);padding:36px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(20px,2.6vw,26px)}
.cta-band p{opacity:.85;margin-top:6px;font-size:14px}
.cta-band .btn{border-color:transparent}

/* 제품 페이지 */
.prod-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:40px;align-items:start}
@media (max-width:900px){.prod-layout{grid-template-columns:1fr;gap:20px}}
.side{position:sticky;top:calc(env(safe-area-inset-top,0px) + 84px);display:flex;flex-direction:column;gap:2px}
.side .lbl{margin-bottom:8px}
.side a{padding:9px 12px;border-radius:var(--r);text-decoration:none;color:var(--muted);font-size:14px;display:flex;justify-content:space-between;gap:8px}
.side a:hover{background:var(--sunk);color:var(--ink)}
.side a .mono{font-size:12px}
@media (max-width:900px){.side{position:static;flex-direction:row;overflow-x:auto;gap:6px;padding-bottom:4px}.side .lbl{display:none}.side a{border:1px solid var(--line);white-space:nowrap;background:var(--surface)}}

.intro{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:32px;margin-bottom:48px}
@media (max-width:820px){.intro{grid-template-columns:1fr}}
.intro p{font-size:16px}
.uses{display:flex;flex-wrap:wrap;gap:8px;align-content:flex-start}
.uses span{border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:4px 12px;font-size:13px}

.series{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px;padding-block:40px;border-top:1px solid var(--line);scroll-margin-top:90px}
@media (max-width:820px){.series{grid-template-columns:1fr;gap:20px}}
.preview{position:relative;aspect-ratio:4/3;border-radius:var(--r);overflow:hidden;background:var(--sunk);max-width:100%}
.preview .swatch,.preview img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.preview .cap{position:absolute;left:12px;bottom:12px;right:12px;display:flex;justify-content:space-between;gap:8px;align-items:end;flex-wrap:wrap}
.preview .cap span{background:rgba(0,0,0,.6);color:#fff;font-size:12px;padding:4px 8px;border-radius:4px}
.series .info{display:flex;flex-direction:column;gap:16px;min-width:0}
.series .code{font-family:var(--f-mono);font-size:13px;color:var(--accent)}
.series h3{font-size:26px}
.series .type{font-size:13px;color:var(--muted)}
.spec{width:100%;border-collapse:collapse;font-size:14px}
.spec th{text-align:left;font-weight:500;color:var(--muted);padding:8px 0;border-bottom:1px solid var(--line);width:34%;vertical-align:top}
.spec td{padding:8px 0;border-bottom:1px solid var(--line);font-family:var(--f-mono);font-variant-numeric:tabular-nums}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{display:flex;flex-direction:column;align-items:center;gap:6px;background:none;border:0;padding:0;cursor:pointer;width:64px}
.chip .sw{width:56px;height:56px;border-radius:50%;border:2px solid var(--surface);box-shadow:0 0 0 1px var(--line)}
.chip[aria-pressed="true"] .sw{box-shadow:0 0 0 2px var(--ink)}
.chip small{font-size:12px;line-height:1.3;text-align:center;color:var(--muted)}
.chip[aria-pressed="true"] small{color:var(--ink);font-weight:500}
.sel-line{font-size:14px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.sel-line .mono{color:var(--muted);font-size:13px}

.sub-sec{padding-block:40px;border-top:1px solid var(--line)}
.sub-sec h2{font-size:22px;margin-bottom:16px}
.acc-list{display:flex;flex-wrap:wrap;gap:8px}
.acc-list span{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:8px 14px;font-size:14px}
details.faq{border-bottom:1px solid var(--line)}
details.faq summary{cursor:pointer;padding:16px 0;font-weight:500;list-style:none;display:flex;justify-content:space-between;gap:16px}
details.faq summary::after{content:"+";font-family:var(--f-mono);color:var(--muted)}
details.faq[open] summary::after{content:"−"}
details.faq p{padding:0 0 18px;color:var(--muted);max-width:68ch}

/* 컬러칩 */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.filters button{height:36px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:var(--surface);cursor:pointer;font-size:14px}
.filters button[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.color-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px}
.ctile{display:flex;flex-direction:column;gap:8px;text-decoration:none}
.ctile .sw{aspect-ratio:1/1;border-radius:4px;max-width:100%}
.ctile b{font-size:14px;font-weight:500}
.ctile .mono{font-size:12px;color:var(--muted)}
.note{margin-top:32px;padding:16px 18px;background:var(--sunk);border-radius:var(--r);font-size:13px;color:var(--muted)}

/* 회사소개 */
.about-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px}
@media (max-width:820px){.about-grid{grid-template-columns:1fr;gap:32px}}
.about-grid h2{font-size:22px;margin-bottom:12px}
.about-grid p{color:var(--muted)}
.cert-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:16px}
.cert{aspect-ratio:3/4;border:1px dashed var(--line);border-radius:var(--r);display:flex;align-items:center;justify-content:center;text-align:center;font-size:12px;color:var(--muted);padding:8px;max-width:100%}
dl.info{display:grid;grid-template-columns:auto minmax(0,1fr);gap:10px 20px;margin:0}
dl.info dt{color:var(--muted);font-size:14px}
dl.info dd{margin:0}

/* 자료실 */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
table.files{width:100%;border-collapse:collapse;font-size:14px;min-width:560px}
table.files th,table.files td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left}
table.files th{font-size:12px;color:var(--muted);font-weight:500;background:var(--sunk)}
table.files tr:last-child td{border-bottom:0}
.badge{display:inline-block;font-size:12px;padding:2px 8px;border-radius:999px;background:var(--sunk);color:var(--muted)}

/* 문의 */
.contact-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:40px;align-items:start}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr}}
form.inq{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px;display:grid;gap:18px}
@media (max-width:560px){form.inq{padding:20px}}
.seg{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.seg label{display:flex;align-items:center;justify-content:center;height:44px;cursor:pointer;font-weight:500;color:var(--muted)}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg input:checked + span{color:var(--accent-ink)}
.seg label:has(input:checked){background:var(--accent);color:var(--accent-ink)}
.seg label:has(input:focus-visible){outline:2px solid var(--ink);outline-offset:-2px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:560px){.row2{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field label,.field .lbl2{font-size:13px;font-weight:500}
.field label .req{color:var(--accent)}
.field input,.field select,.field textarea{height:44px;border:1px solid var(--line);border-radius:var(--r);padding:0 12px;background:var(--bg);width:100%}
.field textarea{height:110px;padding:10px 12px;resize:vertical}
.field .hint{font-size:12px;color:var(--muted)}
.color-checks{display:flex;flex-wrap:wrap;gap:8px}
.color-checks label{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:999px;padding:4px 12px 4px 4px;cursor:pointer;font-size:13px;background:var(--bg)}
.color-checks label:has(input:checked){border-color:var(--ink)}
.color-checks .dot{width:22px;height:22px;border-radius:50%}
.color-checks input{accent-color:var(--accent)}
.consent{display:flex;gap:8px;align-items:flex-start;font-size:13px;color:var(--muted)}
.result{border:1px solid var(--ok);border-radius:var(--r);padding:18px;background:var(--surface)}
.result h3{font-size:16px;color:var(--ok);margin-bottom:8px}
.result pre{white-space:pre-wrap;font-family:var(--f-mono);font-size:13px;margin:12px 0 0;color:var(--muted)}
.contact-side{display:grid;gap:16px}
.call-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px}
.call-panel h2{font-size:24px}
.call-panel ul{margin:16px 0 24px;padding-left:20px;display:grid;gap:10px;color:var(--muted)}
.call-panel ul b{color:var(--ink)}
.call-panel .call-btn{height:56px;font-size:18px;padding:0 28px;white-space:normal;text-align:center}
.call-panel .hours{margin-top:12px;font-size:13px;color:var(--muted)}
.contact-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.contact-card .eyebrow{margin-bottom:6px}
.contact-card .big{font-family:var(--f-mono);font-size:22px;font-weight:500;user-select:all}
.contact-card p{font-size:13px;color:var(--muted);margin-top:4px}

footer.site{border-top:1px solid var(--line);padding-block:40px 48px;font-size:13px;color:var(--muted);background:var(--surface)}
footer.site .cols{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap}
footer.site b{color:var(--ink);font-family:var(--f-display);font-size:16px}

/* 휴대폰 아래 고정 문의 바 */
.dock{display:none}
@media (max-width:820px){
  body{padding-bottom:calc(64px + env(safe-area-inset-bottom,0px))}
  .dock{display:grid;grid-template-columns:repeat(3,1fr);position:fixed;left:0;right:0;bottom:0;z-index:55;background:var(--surface);border-top:1px solid var(--line);padding:0 env(safe-area-inset-right,0px) env(safe-area-inset-bottom,0px) env(safe-area-inset-left,0px)}
  .dock a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;height:64px;text-decoration:none;font-size:12px;color:var(--muted)}
  .dock a svg{width:22px;height:22px}
  .dock a.hl{color:var(--accent);font-weight:700}
}