:root{
  --ink:#1A232E;
  --ink-deep:#10151C;
  --paper:#FFFFFF;
  --panel:#F6F7F8;
  --line:#E7E9EC;
  --muted:#6B7280;
  --blue:#2D6FA6;
  --blue-deep:#174E7D;
  --gold:#D9A253;
  --gold-deep:#96681E;

  --f-sans:'Pretendard', -apple-system, BlinkMacSystemFont, 'Malgun Gothic', sans-serif;

  --wrap:1080px;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--f-sans);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{margin:0;letter-spacing:-0.015em}
p{margin:0}
a{color:inherit}
button{font-family:inherit}
svg{display:block}

.top__in,.hero__in,.service__in,.process__in,.contact__in,.trust__in,.foot__in,.calc__in,.estimate__in{
  max-width:var(--wrap);
  margin:0 auto;
  padding-left:28px;
  padding-right:28px;
}

/* ── 공통 ── */
.eyebrow{
  font-size:.82rem;font-weight:700;letter-spacing:.02em;color:var(--gold-deep);margin-bottom:10px;
}
.h2{
  font-size:clamp(1.5rem,3vw,2rem);
  font-weight:800;
  margin-bottom:12px;
}
.sub{color:var(--muted);font-size:1rem;margin-bottom:0}
.accent{
  display:inline-block;
  background:var(--gold);color:var(--ink-deep);
  padding:.03em .36em .1em;border-radius:5px;
  box-decoration-break:clone;-webkit-box-decoration-break:clone;
}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:8px;
  font-weight:700;font-size:.96rem;
  text-decoration:none;cursor:pointer;
  border:1px solid transparent;
  transition:background .15s ease,color .15s ease,border-color .15s ease,transform .15s ease;
}
.btn svg{width:16px;height:16px}
.btn--solid{background:var(--ink);color:#fff}
.btn--solid:hover{background:var(--blue-deep);transform:translateY(-1px)}
.btn--outline{background:#fff;color:var(--ink);border-color:var(--ink)}
.btn--outline:hover{background:var(--ink);color:#fff}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--ink)}
.btn--pill{border-radius:999px}
.btn--light{background:#fff;color:var(--ink-deep)}
.btn--light:hover{background:var(--gold);color:var(--ink-deep);transform:translateY(-1px)}
.btn--lightGhost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.btn--lightGhost:hover{border-color:#fff;background:rgba(255,255,255,.08)}

/* ── 상단바 ── */
.top{
  position:sticky;top:0;z-index:10;
  background:rgba(255,255,255,.9);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.top__in{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:64px;
}
.top__brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:1.02rem;flex:none}
.top__mark{display:block}
.top__nav{display:flex;gap:28px;flex:1;justify-content:center}
.top__nav a{position:relative;font-size:.9rem;font-weight:600;color:var(--muted);text-decoration:none;padding-bottom:4px}
.top__nav a:hover{color:var(--ink)}
.top__nav a::after{
  content:'';position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--gold);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.top__nav a:hover::after{transform:scaleX(1)}
.top__tel{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--ink-deep);color:#fff;
  padding:10px 18px;border-radius:999px;
  font-weight:700;font-size:.88rem;text-decoration:none;flex:none;
  transition:background .15s ease,transform .15s ease;
}
.top__tel svg{width:15px;height:15px}
.top__tel:hover{background:var(--gold-deep);transform:translateY(-1px)}

/* ── 히어로 ── */
.hero{
  position:relative;overflow:hidden;
  padding:clamp(88px,13vw,148px) 0 clamp(64px,9vw,96px);
  text-align:center;color:#fff;
  background:
    radial-gradient(1100px 520px at 12% -12%, rgba(217,162,83,.22), transparent 60%),
    linear-gradient(165deg,#0E131A 0%,#1A232E 55%,#223047 100%);
}
.hero::before{
  content:'';position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 85%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 85%);
}
.hero__in{position:relative;z-index:1;max-width:680px}
.hero__meta{
  display:inline-flex;align-items:center;gap:10px;
  font-size:.84rem;font-weight:700;letter-spacing:.01em;color:var(--gold);margin-bottom:22px;
}
.hero__meta::before{content:'';width:22px;height:1px;background:var(--gold)}
.hero__title{
  font-size:clamp(2.1rem,5.4vw,3.2rem);
  font-weight:800;line-height:1.34;color:#fff;
}
.hero__lead{
  margin:22px auto 0;max-width:46ch;
  font-size:1.05rem;color:rgba(255,255,255,.72);line-height:1.8;
}
.hero__cta{margin-top:34px;display:flex;justify-content:center;gap:12px;flex-wrap:wrap}

/* ── 히어로 하단 스탯 바 ── */
.heroStats{background:var(--ink-deep)}
.heroStats__in{
  max-width:var(--wrap);margin:0 auto;padding:0 28px;
  display:grid;grid-template-columns:repeat(3,1fr);
}
.heroStats__item{
  padding:26px 22px;border-left:1px solid rgba(255,255,255,.1);text-align:center;
}
.heroStats__item:first-child{border-left:0}
.heroStats__item span{
  display:block;font-size:.76rem;font-weight:700;letter-spacing:.03em;color:var(--gold);margin-bottom:8px;
}
.heroStats__item strong{font-size:1rem;font-weight:800;color:#fff}

/* ── 서비스 ── */
.service{padding:clamp(56px,8vw,96px) 0;border-top:1px solid var(--line);text-align:center}
.service__in{max-width:var(--wrap)}
.service .sub{margin-bottom:clamp(36px,5vw,56px)}
.service__grid{
  display:grid;grid-template-columns:repeat(5,1fr);gap:18px;
  text-align:center;
}
.service__item{
  background:none;border:0;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:8px;
  color:var(--ink);
}
.service__icon{
  width:84px;height:84px;border-radius:50%;
  background:var(--panel);
  display:flex;align-items:center;justify-content:center;
  color:var(--blue-deep);
  transition:background .18s ease,transform .18s ease;
}
.service__icon svg{width:30px;height:30px}
.service__item:hover .service__icon,
.service__item.is-active .service__icon{background:var(--blue);color:#fff;transform:translateY(-2px)}
.service__item strong{font-size:1rem;font-weight:800}
.service__desc{font-size:.82rem;color:var(--muted);line-height:1.6;max-width:22ch}

/* ── 타일 계산기 ── */
.calc{padding:clamp(56px,8vw,96px) 0;border-top:1px solid var(--line);text-align:center}
.calc .sub{max-width:52ch;margin:0 auto clamp(36px,5vw,56px)}
.calc__grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  border:1px solid var(--line);border-radius:12px;
  overflow:hidden;background:var(--paper);
  text-align:left;
}
.calc__col{padding:28px 26px;border-left:1px solid var(--line)}
.calc__col:first-child{border-left:0}
.calc__col h3{
  display:flex;align-items:center;gap:10px;
  font-size:1rem;font-weight:800;margin-bottom:20px;
}
.calc__num{
  font-size:.74rem;font-weight:800;color:var(--blue-deep);
  background:var(--panel);border-radius:6px;padding:3px 7px;
}
.calc__col .field{margin-bottom:14px}
.calc__col .field:last-of-type{margin-bottom:10px}
.calc__col select{
  width:100%;
  border:1px solid var(--line);border-radius:8px;
  background:var(--paper);
  font-family:var(--f-sans);font-size:.98rem;color:var(--ink);font-weight:700;
  padding:12px 14px;
  appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;background-size:16px;
  transition:border-color .15s ease;
}
.calc__col select:focus{outline:none;border-color:var(--blue)}
.calc__col input::-webkit-outer-spin-button,
.calc__col input::-webkit-inner-spin-button{opacity:1}
.calc__hint{font-size:.8rem;color:var(--muted);line-height:1.6;margin-top:2px}

.calc__result{
  display:grid;grid-template-columns:repeat(3,1fr);
  margin-top:20px;border-radius:12px;overflow:hidden;
}
.calc__resultItem{
  background:var(--ink);color:#fff;
  padding:28px 24px;text-align:left;
  border-left:1px solid rgba(255,255,255,.12);
}
.calc__resultItem:first-child{border-left:0}
.calc__resultItem--total{background:var(--blue-deep)}
.calc__tag{
  display:inline-block;font-size:.72rem;font-weight:700;
  background:rgba(255,255,255,.14);border-radius:5px;
  padding:3px 8px;margin-bottom:12px;
}
.calc__resultItem p{font-size:.86rem;color:rgba(255,255,255,.7);margin-bottom:4px}
.calc__resultItem strong{
  display:flex;align-items:baseline;gap:6px;
  font-size:2.4rem;font-weight:800;line-height:1;
}
.calc__resultItem strong small{font-size:.95rem;font-weight:700;color:rgba(255,255,255,.7)}
.calc__formula{display:block;margin-top:12px;font-size:.78rem;color:rgba(255,255,255,.55);line-height:1.6}
.calc__need{display:block;margin-top:4px;font-size:.88rem;font-weight:700;color:#fff}
.calc__sub{
  display:block;margin-top:12px;padding-top:12px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:.8rem;color:rgba(255,255,255,.65);min-height:1.2em;
}

.calc__note{
  display:flex;gap:14px;align-items:flex-start;
  margin-top:20px;padding:20px 22px;border-radius:10px;
  background:var(--panel);text-align:left;
}
.calc__note svg{width:20px;height:20px;flex:none;margin-top:2px;color:var(--blue-deep)}
.calc__note p{font-size:.86rem;color:var(--muted);line-height:1.75}
.calc__note strong{color:var(--ink);font-weight:800}

.calc__pdf{margin-top:30px;text-align:center}
.calc__pdfHint{margin-top:12px;font-size:.8rem;color:var(--muted)}
.calc__pdfHint strong{color:var(--ink)}

/* ── 셀프 견적 ── */
.estimate{padding:clamp(56px,8vw,96px) 0;background:var(--panel);text-align:center}
.estimate .sub{max-width:56ch;margin:0 auto clamp(36px,5vw,56px)}

.estimate__grid{
  display:grid;grid-template-columns:1fr 1fr;gap:18px;
  text-align:left;
}
.estimate__card{
  background:var(--paper);border:1px solid var(--line);border-radius:12px;
  padding:26px;
}
.estimate__card--wide{grid-column:1 / -1}
.estimate__cardHead{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.estimate__cardHead h3{font-size:1.05rem;font-weight:800;flex:1}
.estimate__catNum{
  font-size:.74rem;font-weight:800;color:var(--blue-deep);
  background:var(--panel);border-radius:6px;padding:3px 7px;
}
.estimate__catTotal{font-size:.98rem;font-weight:800;color:var(--blue-deep)}
.estimate__note{font-size:.86rem;color:var(--muted);line-height:1.75}
.estimate__note a{color:var(--blue);font-weight:700;text-decoration:underline}

.estimate__pairGrid{display:grid;grid-template-columns:1fr 1fr;gap:22px 28px}

.opt-group{margin-bottom:22px}
.opt-group:last-child{margin-bottom:0}
.opt-group__label{font-size:.86rem;font-weight:800;margin-bottom:10px}
.opt-group__hint{font-weight:600;color:var(--muted);font-size:.78rem}

.opt-row{display:flex;flex-wrap:wrap;gap:8px}
.opt{
  background:var(--paper);border:1px solid var(--line);border-radius:7px;
  padding:9px 13px;font-size:.84rem;font-weight:700;color:var(--ink);
  cursor:pointer;transition:border-color .15s ease,background .15s ease,color .15s ease;
}
.opt b{font-weight:800}
.opt:hover{border-color:var(--blue)}
.opt--none{color:var(--muted)}
.opt.is-active{background:var(--ink);border-color:var(--ink);color:#fff}
.opt--none.is-active{background:var(--panel);border-color:var(--line);color:var(--muted)}

.opt-qtyLine{display:flex;align-items:center;gap:10px;margin-top:12px}
.opt-qtyLine label{font-size:.82rem;font-weight:700;color:var(--muted)}
.opt-qtyLine input{
  width:88px;border:1px solid var(--line);border-radius:7px;
  padding:8px 10px;font-family:var(--f-sans);font-size:.9rem;font-weight:700;color:var(--ink);
}
.opt-qtyLine input:focus{outline:none;border-color:var(--blue)}

.opt-qtyRow{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:9px 0;border-bottom:1px solid var(--line);
}
.opt-qtyRow:last-child{border-bottom:0}
.opt-qtyRow span{font-size:.86rem;font-weight:700}
.opt-qtyRow b{font-weight:800;color:var(--blue-deep)}
.opt-qtyRow input{
  width:64px;border:1px solid var(--line);border-radius:7px;
  padding:7px 8px;font-family:var(--f-sans);font-size:.88rem;font-weight:700;color:var(--ink);
  text-align:center;flex:none;
}
.opt-qtyRow input:focus{outline:none;border-color:var(--blue)}

.estimate__mortarGrid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:10px}
.estimate__mortarGrid .field{margin-bottom:0}
.estimate__mortarGrid input{
  width:100%;border:1px solid var(--line);border-radius:7px;
  padding:9px 10px;font-family:var(--f-sans);font-size:.9rem;font-weight:700;color:var(--ink);
}
.estimate__mortarGrid input:focus{outline:none;border-color:var(--blue)}
.estimate__mortarGrid label{display:block;font-size:.78rem;color:var(--muted);margin-bottom:6px}

.estimate__summary{
  margin-top:28px;background:var(--ink);border-radius:12px;overflow:hidden;text-align:left;
}
.estimate__summaryList{list-style:none;margin:0;padding:0}
.estimate__summaryList li{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;border-bottom:1px solid rgba(255,255,255,.1);
  font-size:.9rem;color:rgba(255,255,255,.85);
}
.estimate__summaryList strong{font-weight:800;color:#fff}
.estimate__grand{
  display:flex;align-items:center;justify-content:space-between;
  padding:22px 24px;background:#10161e;
}
.estimate__grand span{font-size:1rem;font-weight:800;color:#fff}
.estimate__grand strong{font-size:1.8rem;font-weight:800;color:var(--gold)}

.estimate__actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.estimate__actions .btn{flex:1 1 220px;max-width:280px}

/* ── 진행 방식 ── */
.process{padding:clamp(56px,8vw,96px) 0;background:var(--panel);text-align:center}
.process__in{max-width:var(--wrap)}
.process .h2{margin-bottom:clamp(40px,6vw,60px)}
.process__steps{
  list-style:none;margin:0;padding:0;
  display:grid;grid-template-columns:repeat(4,1fr);gap:28px;
  position:relative;
}
.process__steps::before{
  content:'';position:absolute;top:21px;left:calc(12.5% - 1px);right:calc(12.5% - 1px);
  height:1px;background:var(--line);
}
.process__steps li{display:flex;flex-direction:column;align-items:center;gap:12px;position:relative}
.process__num{
  width:42px;height:42px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--paper);border:1.5px solid var(--gold);
  font-weight:800;color:var(--gold-deep);
  position:relative;z-index:1;
}
.process__steps strong{font-size:1rem;font-weight:800}
.process__steps p{font-size:.86rem;color:var(--muted);line-height:1.7;max-width:26ch}

/* ── 문의 ── */
.contact{padding:clamp(56px,8vw,100px) 0;text-align:center}
.contact__in{max-width:560px}
.contact__card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:12px;
  padding:clamp(32px,5vw,48px);
}
.contact .sub{margin-bottom:30px}
.field{margin-bottom:18px;text-align:left}
.field label{
  display:block;font-size:.84rem;font-weight:700;color:var(--ink);margin-bottom:8px;
}
.field input,.field textarea{
  width:100%;
  border:1px solid var(--line);border-radius:8px;
  background:var(--paper);
  font-family:var(--f-sans);font-size:.98rem;color:var(--ink);
  padding:12px 14px;
  resize:vertical;
  transition:border-color .15s ease;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue)}

.contact__actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.contact__actions .btn{flex:1 1 160px}
.contact__direct{margin-top:18px;font-size:.84rem;color:var(--muted)}

/* ── 신뢰 포인트 ── */
.trust{padding:clamp(56px,8vw,96px) 0;border-top:1px solid var(--line);text-align:center}
.trust .h2{margin-bottom:clamp(36px,5vw,56px)}
.trust__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}
.trust__grid article{display:flex;flex-direction:column;align-items:center;gap:12px}
.trust__grid svg{width:28px;height:28px;color:var(--gold-deep)}
.trust__grid h3{font-size:.98rem;font-weight:800}
.trust__grid p{font-size:.86rem;color:var(--muted);line-height:1.7;max-width:26ch}

/* ── 푸터 ── */
.foot{padding:36px 0;background:var(--panel);border-top:1px solid var(--line)}
.foot__in{
  display:flex;flex-direction:column;align-items:center;gap:12px;
  text-align:center;
}
.foot__logo{display:block;height:34px;width:auto}
.foot__in p{font-size:.84rem;color:var(--muted)}

/* ── 반응형 ── */
@media (max-width:860px){
  .top__nav{display:none}
  .service__grid{grid-template-columns:repeat(3,1fr)}
  .process__steps{grid-template-columns:1fr 1fr;row-gap:36px}
  .process__steps::before{display:none}
  .trust__grid{grid-template-columns:1fr}
  .calc__grid{grid-template-columns:1fr}
  .calc__col{border-left:0;border-top:1px solid var(--line)}
  .calc__col:first-child{border-top:0}
  .calc__result{grid-template-columns:1fr}
  .calc__resultItem{border-left:0;border-top:1px solid rgba(255,255,255,.12)}
  .calc__resultItem:first-child{border-top:0}
  .estimate__grid{grid-template-columns:1fr}
  .estimate__pairGrid{grid-template-columns:1fr}
  .estimate__mortarGrid{grid-template-columns:1fr 1fr}
  .heroStats__in{grid-template-columns:1fr}
  .heroStats__item{border-left:0;border-top:1px solid rgba(255,255,255,.1)}
  .heroStats__item:first-child{border-top:0}
}
@media (max-width:480px){
  .estimate__mortarGrid{grid-template-columns:1fr}
  .estimate__actions .btn{flex:1 1 100%;max-width:none}
}
@media (max-width:560px){
  .service__grid{grid-template-columns:1fr 1fr}
  .process__steps{grid-template-columns:1fr}
  .hero__cta .btn{flex:1 1 100%}
  .contact__actions{flex-direction:column}
}

/* ── 등장 연출 (한 번만) ── */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease}
.is-ready [data-reveal]{opacity:1;transform:none}
.hero__in [data-reveal]:nth-child(1){transition-delay:.05s}
.hero__in [data-reveal]:nth-child(2){transition-delay:.13s}
.hero__in [data-reveal]:nth-child(3){transition-delay:.21s}
.hero__in [data-reveal]:nth-child(4){transition-delay:.29s}
.hero__in [data-reveal]:nth-child(5){transition-delay:.36s}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none !important}
  [data-reveal]{opacity:1 !important;transform:none !important}
}

/* ── 인쇄(타일 계산기 PDF 저장) ── */
@media print{
  body.is-printing-calc > header.top,
  body.is-printing-calc > footer.foot{display:none !important}
  body.is-printing-calc main > *:not(.calc){display:none !important}
  body.is-printing-calc .calc{padding:0;border:0}
  body.is-printing-calc .calc__pdf{display:none !important}
  body.is-printing-calc .calc__note{background:#fff;border:1px solid #ccc}
  body.is-printing-calc .calc__resultItem{color:#000;background:#fff !important;border:1px solid #ccc}
  body.is-printing-calc .calc__resultItem--total{background:#fff !important}
  body.is-printing-calc .calc__tag,
  body.is-printing-calc .calc__need,
  body.is-printing-calc .calc__sub,
  body.is-printing-calc .calc__formula,
  body.is-printing-calc .calc__resultItem p,
  body.is-printing-calc .calc__resultItem strong small{color:#000 !important;background:none}
}

/* ── 인쇄(셀프 견적 PDF 저장) ── */
@media print{
  body.is-printing-estimate > header.top,
  body.is-printing-estimate > footer.foot{display:none !important}
  body.is-printing-estimate main > *:not(.estimate){display:none !important}
  body.is-printing-estimate .estimate{padding:0;background:#fff}
  body.is-printing-estimate .calc__pdf{display:none !important}
  body.is-printing-estimate .opt{display:none !important}
  body.is-printing-estimate .opt.is-active{
    display:inline-block !important;color:#000 !important;background:#fff !important;border-color:#999 !important;
  }
  body.is-printing-estimate .opt-qtyLine,
  body.is-printing-estimate .estimate__mortarGrid{display:none !important}
  body.is-printing-estimate .opt-qtyRow{color:#000}
  body.is-printing-estimate .opt-group__hint{display:none}
  body.is-printing-estimate .estimate__card{border:1px solid #ccc;break-inside:avoid}
  body.is-printing-estimate .calc__note{background:#fff;border:1px solid #ccc}
  body.is-printing-estimate .estimate__summary{background:#fff;border:1px solid #ccc}
  body.is-printing-estimate .estimate__summaryList li{color:#000;border-bottom:1px solid #ddd}
  body.is-printing-estimate .estimate__summaryList strong{color:#000}
  body.is-printing-estimate .estimate__grand{background:#fff}
  body.is-printing-estimate .estimate__grand span{color:#000}
  body.is-printing-estimate .estimate__grand strong{color:#000}
}