/* 성남폴딩도어시공 — editorial / architectural brand system (Festa System 레퍼런스 기반) */

:root{
  --ink:#1c1a17;
  --ink-soft:#5c584f;
  --ink-faint:#8f8a7c;
  --line:#ddd7c9;
  --paper:#f7f4ee;
  --paper-2:#efeade;
  --white:#ffffff;
  --charcoal:#1f1d1a;
  --accent:#8a5a34;
  --max:1400px;
  --gap-xl:clamp(72px,9vw,160px);
  --gap-lg:clamp(44px,5.5vw,88px);
  --radius:0;
  --font-serif:'Gowun Batang','Noto Serif KR',serif;
  --font-sans:'Noto Sans KR',-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-weight:400;
  color:var(--ink);
  background:var(--paper);
  line-height:1.75;
  letter-spacing:-.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,p{margin:0}

.snd-eyebrow{
  font-family:var(--font-sans);
  font-size:11px;
  font-weight:600;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--ink-faint);
  margin:0 0 18px;
}
.snd-eyebrow--light{color:rgba(255,255,255,.62)}

.snd-h1{
  font-family:var(--font-serif);
  font-size:clamp(28px,3.1vw,42px);
  font-weight:400;
  line-height:1.3;
  letter-spacing:0;
  color:#fff;
  margin:0 0 18px;
}
.snd-h2{
  font-family:var(--font-serif);
  font-size:clamp(26px,2.8vw,38px);
  font-weight:400;
  line-height:1.4;
  letter-spacing:0;
  color:var(--ink);
}
.snd-h2--light{color:#fff}

/* ---------- Header ---------- */
.snd-header{
  position:sticky;top:0;z-index:50;
  background:rgba(247,244,238,.92);
  border-bottom:1px solid var(--line);
  transition:background-color .25s ease,border-color .25s ease;
}
.snd-header__inner{
  max-width:var(--max);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 clamp(28px,5vw,72px);height:80px;
}
.snd-logo{display:flex;align-items:baseline;gap:6px;font-family:var(--font-sans)}
.snd-logo__mark{font-size:14px;font-weight:600;letter-spacing:.08em;color:var(--ink)}
.snd-logo__text{font-size:13px;font-weight:400;letter-spacing:.02em;color:var(--ink-soft)}
.snd-nav{display:flex;gap:clamp(24px,3vw,44px)}
.snd-nav a{font-size:12px;font-weight:400;letter-spacing:.02em;color:var(--ink-soft)}
.snd-nav a:hover{color:var(--ink)}
.snd-header__cta{display:flex;align-items:center;gap:22px}
.snd-header__phone{font-weight:500;font-size:13px;letter-spacing:.01em;color:var(--ink-soft);border-left:1px solid var(--line);padding-left:22px}
.snd-header__menu-btn{
  display:none;flex-direction:column;justify-content:center;gap:4px;
  width:26px;height:26px;background:none;border:0;cursor:pointer;padding:0;
}
.snd-header__menu-btn span{display:block;width:100%;height:1px;background:var(--ink)}
.snd-nav--mobile{display:none}

/* ---------- Header × Hero overlay (front page first screen only) ---------- */
.home .snd-header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  background:transparent;
  border-bottom:1px solid rgba(255,255,255,.28);
}
.home .snd-header .snd-logo__mark,
.home .snd-header .snd-logo__text,
.home .snd-header .snd-nav a,
.home .snd-header__phone{color:#fff;border-left-color:rgba(255,255,255,.32)}
.home .snd-header .snd-header__menu-btn span{background:#fff}
.home .snd-header.is-scrolled{
  background:rgba(247,244,238,.94);
  border-bottom:1px solid var(--line);
}
.home .snd-header.is-scrolled .snd-logo__mark{color:var(--ink)}
.home .snd-header.is-scrolled .snd-logo__text,
.home .snd-header.is-scrolled .snd-header__phone{color:var(--ink-soft)}
.home .snd-header.is-scrolled .snd-header__phone{border-left-color:var(--line)}
.home .snd-header.is-scrolled .snd-nav a{color:var(--ink-soft)}
.home .snd-header.is-scrolled .snd-header__menu-btn span{background:var(--ink)}

/* ---------- Layout helpers ---------- */
.snd-section{
  max-width:var(--max);margin:0 auto;
  padding:var(--gap-xl) clamp(24px,4vw,56px);
}
.snd-section__head{max-width:620px;margin-bottom:var(--gap-lg)}
.snd-section__desc{margin-top:14px;color:var(--ink-soft);font-size:16px;font-weight:300;line-height:1.8}

/* ---------- Hero (full-bleed image, header integrated, content upper-third) ---------- */
.snd-hero{
  position:relative;isolation:isolate;overflow:hidden;
  min-height:94vh;
  display:flex;align-items:flex-start;
}
.snd-hero__bg{position:absolute;inset:0;z-index:0}
.snd-hero__bg img{width:100%;height:100%;object-fit:cover;object-position:center 38%}
.snd-hero__scrim{
  position:absolute;inset:0;z-index:1;
  background:rgba(20,18,15,.24);
  background-image:linear-gradient(to right,rgba(15,13,11,.4) 0%,rgba(15,13,11,.12) 46%,rgba(15,13,11,0) 68%);
}
.snd-hero__inner{
  position:relative;z-index:2;width:100%;
  max-width:var(--max);margin:0 auto;
  padding:clamp(150px,20vw,232px) clamp(24px,4vw,56px) clamp(64px,8vw,120px);
}
.snd-hero__content{max-width:600px}
.snd-hero__tagline{font-family:var(--font-sans);font-size:14px;font-weight:500;letter-spacing:.04em;color:#fff;opacity:.86;margin:0 0 20px}
.snd-hero__lead{font-family:var(--font-sans);font-size:15px;font-weight:300;line-height:1.75;color:rgba(255,255,255,.86);max-width:42ch;margin:0 0 36px}
.snd-hero__cta{display:flex;flex-direction:column;align-items:flex-start;gap:10px}

/* ---------- Buttons ---------- */
.snd-btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:15px 32px;font-family:var(--font-sans);font-weight:600;font-size:13px;
  letter-spacing:.03em;
  border-radius:var(--radius);border:1px solid transparent;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.snd-btn--primary{background:var(--white);color:var(--ink);border-color:var(--white)}
.snd-btn--primary:hover{background:var(--ink);color:var(--white);border-color:var(--ink)}
.snd-btn--ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.snd-btn--ghost:hover{background:var(--ink);color:var(--white)}
.snd-btn--outline-light{border-color:rgba(255,255,255,.55);color:#fff;background:transparent}
.snd-btn--outline-light:hover{background:#fff;color:var(--ink);border-color:#fff}

/* CTA 섹션(어두운 배경) 위에서는 primary 버튼도 outline-light와 짝을 맞춤 */
.snd-cta .snd-btn--primary{background:var(--white);color:var(--charcoal)}
.snd-cta .snd-btn--primary:hover{background:transparent;color:var(--white);border-color:var(--white)}

/* ---------- 상담 페이지 ---------- */
.snd-consult__cta{margin-top:32px;flex-direction:row;flex-wrap:wrap}

/* ---------- 대표 시공사례 (5열 x 2행 균등 grid, 10장 전부 노출) ---------- */
.snd-cases__grid{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:clamp(10px,1.4vw,20px);
}
.snd-cases__grid--3{grid-template-columns:repeat(3,1fr)}
.snd-cases__item{display:flex;flex-direction:column}
.snd-cases__photo{position:relative;display:block;aspect-ratio:1/1;overflow:hidden;background:var(--paper-2)}
.snd-cases__photo img{width:100%;height:100%;object-fit:cover;object-position:center;display:block}
.snd-cases__label{
  position:absolute;left:0;right:0;bottom:0;z-index:1;
  padding:20px 12px 10px;
  font-size:12px;font-weight:500;letter-spacing:.01em;color:#fff;
  background-image:linear-gradient(to top,rgba(15,13,11,.55) 0%,rgba(15,13,11,0) 100%);
}
.snd-cases__more{
  display:flex;align-items:center;justify-content:center;
  margin-top:8px;padding:11px 8px;
  border:1px solid var(--line);
  font-size:12px;font-weight:600;letter-spacing:.01em;color:var(--ink-soft);
  transition:border-color .2s ease,color .2s ease;
}
.snd-cases__more:hover{border-color:var(--ink);color:var(--ink)}
.snd-link-more{
  display:inline-block;margin-top:40px;font-size:13px;font-weight:600;letter-spacing:.02em;
  border-bottom:1px solid var(--ink);padding-bottom:3px;
}

/* ---------- 시공사례 상세페이지 ---------- */
.snd-breadcrumb{display:flex;gap:8px;align-items:center;font-size:12px;color:var(--ink-faint);margin-bottom:24px}
.snd-breadcrumb a{color:var(--ink-faint)}
.snd-breadcrumb a:hover{color:var(--ink)}
.snd-case-detail{max-width:760px}
.snd-case-detail__media{margin-top:32px}
.snd-case-detail__media img{width:100%;height:auto;object-fit:cover}
.snd-case-detail__body{margin-top:28px;color:var(--ink-soft);font-weight:300;font-size:16px;line-height:1.85}
.snd-case-detail .snd-consult__cta{margin-top:36px}
.snd-case-detail > .snd-link-more{margin-top:28px}

.snd-related{margin-top:44px;padding-top:28px;border-top:1px solid var(--line)}
.snd-related__label{font-size:12px;font-weight:600;letter-spacing:.04em;color:var(--ink-faint);text-transform:uppercase;margin:0 0 14px}
.snd-related__list{display:flex;flex-wrap:wrap;gap:10px 28px}
.snd-related__list a{font-size:14px;font-weight:500;color:var(--ink-soft)}
.snd-related__list a:hover{color:var(--ink)}

/* ---------- 폴딩도어 구조 (좌 텍스트 37% / 우 이미지 63%, editorial split) ---------- */
.snd-split__grid{
  display:grid;
  grid-template-columns:37fr 63fr;
  min-height:clamp(440px,44vw,620px);
}
.snd-split__text{background:var(--charcoal);display:flex;align-items:center;overflow:hidden}
.snd-split__text-inner{padding:clamp(32px,4vw,64px);max-width:440px}
.snd-split__subhead{margin-top:14px;font-size:15px;font-weight:500;color:rgba(255,255,255,.82)}
.snd-split__text p{margin-top:18px;color:rgba(255,255,255,.68);font-weight:300;font-size:15px;line-height:1.85}
.snd-split__list{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.snd-split__list li{padding-left:18px;position:relative;color:rgba(255,255,255,.68);font-weight:300;font-size:14px;line-height:1.6}
.snd-split__list li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;background:rgba(255,255,255,.45)}
.snd-split__cta{margin-top:32px;flex-direction:row;flex-wrap:wrap;gap:10px}
.snd-split__media{position:relative;overflow:hidden}
.snd-split__media img{width:100%;height:100%;object-fit:cover;display:block}
/* "완전히 접혀 사라지는 / 개방 구조" 2줄 강제 — 넓은 데스크톱 폭에서 title box(440px cap) 여유가 좁아 단어가 끊기는 것만 보정 */
@media (min-width:1101px){
  .snd-split:not(.snd-split--reverse) .snd-split__text-inner > h2{margin-right:-20px}
}
.snd-split--reverse{padding-top:0}
.snd-split--reverse .snd-split__grid{grid-template-columns:63fr 37fr}

/* ---------- 시공 소개 / 시공 방식 (2-col alternating) ---------- */
.snd-guide,.snd-method{
  display:grid;grid-template-columns:1fr 1fr;gap:var(--gap-lg);align-items:center;
}
.snd-guide{
  background:var(--paper-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding-top:var(--gap-lg);
  padding-bottom:var(--gap-lg);
}
.snd-method{
  background:var(--paper-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding-top:var(--gap-lg);
  padding-bottom:var(--gap-lg);
}
.snd-guide__media img,.snd-method__media img{width:100%;height:clamp(320px,32vw,460px);object-fit:cover}
.snd-guide__text p,.snd-method__text p{color:var(--ink-soft);font-weight:300;margin-top:20px;font-size:16px;line-height:1.85}
.snd-checklist{margin-top:26px;display:flex;flex-direction:column;gap:13px}
.snd-checklist li{
  padding-left:20px;position:relative;color:var(--ink-soft);font-weight:300;font-size:15px;
}
.snd-checklist li::before{
  content:"";position:absolute;left:0;top:10px;width:5px;height:5px;background:var(--ink-faint);
}
.snd-checklist strong{color:var(--ink);font-weight:600}

/* ---------- 비용 표 ---------- */
.snd-table{width:100%;border-collapse:collapse;font-size:15px}
.snd-table thead th{
  text-align:left;padding:14px 16px;font-weight:600;font-size:13px;letter-spacing:.02em;
  border-bottom:1px solid var(--ink);color:var(--ink);
}
.snd-table td{padding:16px;border-bottom:1px solid var(--line);color:var(--ink-soft);font-weight:300}
.snd-table tbody tr:last-child td{border-bottom:1px solid var(--ink)}
.snd-table td:first-child{color:var(--ink);font-weight:500}

/* ---------- 적용 공간 (alternating rows) ---------- */
.snd-space-row{
  display:grid;grid-template-columns:1.1fr 1fr;gap:var(--gap-lg);align-items:center;
  padding:52px 0;border-top:1px solid var(--line);
}
.snd-space-row:first-of-type{border-top:0}
.snd-space-row--reverse{direction:rtl}
.snd-space-row--reverse > *{direction:ltr}
.snd-space-row__media img{width:100%;height:clamp(280px,28vw,380px);object-fit:cover}
.snd-space-row__text h3{font-family:var(--font-serif);font-size:24px;font-weight:400;margin-bottom:16px}
.snd-space-row__text p{color:var(--ink-soft);font-weight:300;font-size:16px;line-height:1.85}

/* ---------- 와이드 갤러리 ---------- */
.snd-gallery__wide img{width:100%;height:clamp(320px,42vw,560px);object-fit:cover}

/* ---------- 진행 과정 ---------- */
.snd-process{
  position:relative;
  padding-top:var(--gap-lg);
  padding-bottom:var(--gap-lg);
}
.snd-process::before{
  content:"";
  position:absolute;
  top:0;bottom:0;
  left:50%;
  width:100vw;
  margin-left:-50vw;
  background:var(--paper-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  z-index:-1;
}
.snd-process__list{display:flex;flex-direction:column}
.snd-process__list li{
  display:grid;grid-template-columns:220px 1fr;gap:32px;
  padding:30px 0;border-top:1px solid var(--line);
}
.snd-process__list li:last-child{border-bottom:1px solid var(--line)}
.snd-process__list h3{font-family:var(--font-serif);font-size:19px;font-weight:400}
.snd-process__list p{color:var(--ink-soft);font-weight:300;margin-top:8px;font-size:15px;line-height:1.8;max-width:60ch}

/* ---------- FAQ ---------- */
.snd-faq__list{display:flex;flex-direction:column}
.snd-faq__page{display:flex;flex-direction:column}
.snd-faq__page[hidden]{display:none}
.snd-faq__item{border-top:1px solid var(--line);padding:26px 0}
.snd-faq__item:last-child{border-bottom:1px solid var(--line)}
.snd-faq__item summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px}
.snd-faq__item summary::-webkit-details-marker{display:none}
.snd-faq__item summary h3{font-family:var(--font-sans);font-size:17px;font-weight:500}
.snd-faq__item summary::after{content:"+";font-size:20px;font-weight:300;color:var(--ink-faint);flex:none}
.snd-faq__item[open] summary::after{content:"–"}
.snd-faq__item p{color:var(--ink-soft);font-weight:300;margin-top:16px;font-size:15px;line-height:1.8;max-width:70ch}

.snd-faq__pagination{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:6px;margin-top:36px}
.snd-faq__page-nav,.snd-faq__page-num{
  min-width:32px;height:32px;padding:0 6px;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-sans);font-size:13px;font-weight:500;color:var(--ink-soft);
  background:none;border:1px solid transparent;border-radius:0;cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.snd-faq__page-nav:hover,.snd-faq__page-num:hover{color:var(--ink)}
.snd-faq__page-num.is-active{border-color:var(--ink);color:var(--ink);font-weight:600}
.snd-faq__page-nav:disabled{opacity:.35;cursor:default}
.snd-faq__page-nav:disabled:hover{color:var(--ink-soft)}

/* ---------- CTA ---------- */
.snd-cta{background:var(--charcoal);padding:var(--gap-xl) clamp(24px,4vw,56px)}
.snd-cta__inner{max-width:620px;margin:0 auto;text-align:center}
.snd-cta__desc{color:rgba(255,255,255,.7);font-weight:300;margin-top:18px;margin-bottom:36px;font-size:16px;line-height:1.8}
.snd-cta .snd-hero__cta{flex-direction:row;justify-content:center;flex-wrap:wrap}

/* ---------- Footer ---------- */
.snd-footer{background:var(--paper-2);border-top:1px solid var(--line)}
.snd-footer__inner{
  max-width:var(--max);margin:0 auto;padding:56px clamp(24px,4vw,56px);
  display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.snd-footer__brand p{margin-top:12px;color:var(--ink-soft);font-weight:300;font-size:13px}
.snd-footer__nap{font-size:13px;font-weight:300;color:var(--ink-soft);text-align:right}
.snd-footer__nap p{margin-top:6px}
.snd-footer__nap a{font-weight:500;color:var(--ink)}
.snd-footer__note{margin-top:14px;opacity:.75}

.snd-fab{
  position:fixed;right:20px;bottom:20px;z-index:60;
  display:flex;align-items:center;gap:8px;
  background:var(--white);color:var(--ink);padding:11px 16px;
  border:1px solid var(--ink);border-radius:var(--radius);
  font-weight:600;font-size:12px;letter-spacing:.02em;
}
.snd-fab:hover{background:var(--ink);color:var(--white)}
.snd-fab svg{width:15px;height:15px}

/* ---------- Mobile ---------- */
@media (max-width:900px){
  .snd-nav{display:none}
  .snd-header__menu-btn{display:flex}
  .snd-nav--mobile.is-open{
    display:flex;flex-direction:column;gap:2px;background:var(--paper);
    border-top:1px solid var(--line);padding:8px 24px 20px;
  }
  .snd-nav--mobile a{padding:12px 0;font-weight:500;font-size:14px;border-bottom:1px solid var(--line)}
  .snd-nav--mobile .snd-btn{margin-top:14px;border-bottom:0}

  .snd-hero{min-height:82vh}
  .snd-hero__bg img{object-position:center 32%}
  .snd-hero__inner{padding-top:clamp(120px,30vw,150px);padding-bottom:clamp(48px,10vw,72px)}
  .snd-hero__content{max-width:100%}
  .snd-h1{font-size:clamp(28px,8vw,36px);margin-bottom:14px}
  .snd-hero__tagline{font-size:13px;margin-bottom:12px}
  .snd-hero__lead{font-size:14px;max-width:none;margin-bottom:28px}

  .snd-consult__cta{margin-top:28px;flex-direction:column;align-items:flex-start}

  .snd-guide,.snd-method{grid-template-columns:1fr}
  .snd-method .snd-method__media{order:-1}

  .snd-space-row,.snd-space-row--reverse{grid-template-columns:1fr;direction:ltr}
  .snd-space-row__media{order:-1}

  .snd-process__list li{grid-template-columns:1fr;gap:6px}

  .snd-cta .snd-hero__cta{flex-direction:column;align-items:center}

  .snd-footer__inner{flex-direction:column}
  .snd-footer__nap{text-align:left}

  .snd-table{display:block;overflow-x:auto;white-space:nowrap}
}

/* 시공사례 그리드: PC 5열 → 태블릿 3열 → 모바일 2열 (행 수는 늘어나도 됨) */
@media (max-width:1100px){
  .snd-cases__grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:640px){
  .snd-cases__grid{grid-template-columns:repeat(2,1fr)}
  .snd-cases__grid--3{grid-template-columns:1fr}
}

/* 폴딩도어 구조 split 섹션: PC 37:63 → 태블릿 45:55(2단 유지) → 모바일 1단(TEXT→IMAGE) */
@media (max-width:1100px){
  .snd-split__grid{grid-template-columns:45fr 55fr;min-height:clamp(420px,54vw,540px)}
  .snd-split--reverse .snd-split__grid{grid-template-columns:55fr 45fr}
  .snd-split__text-inner{padding:clamp(24px,3.5vw,40px);max-width:none}
}
@media (max-width:640px){
  .snd-split__grid,.snd-split--reverse .snd-split__grid{grid-template-columns:1fr;min-height:0}
  .snd-split__text-inner{padding:40px 24px}
  .snd-split:not(.snd-split--reverse) .snd-split__text-inner > h2{margin-right:-10px}
  .snd-split__media{height:72vw}
  .snd-split__cta{flex-direction:column;align-items:flex-start}
}