/* 욕실타일수리 — editorial 테마 / 15 인디고 테크 (Primary #3730A3 / Secondary #818CF8 / Accent #22C55E) */
html{scroll-behavior:smooth}
.hairline{border-color:var(--line)}
.eyebrow{font-family:'Pretendard Variable',Pretendard,sans-serif;font-size:.7rem;letter-spacing:.28em;font-weight:600;color:var(--primary);text-transform:uppercase;margin:0}
.eyebrow-light{color:#C7D2FE}
.sec-head{border-top:1px solid var(--ink);padding-top:1.25rem}
.lead{color:var(--sub);font-size:15.5px;line-height:1.85;max-width:42rem}
.answer{font-size:16.5px;line-height:1.85;color:#374151;max-width:42rem}
@media(min-width:768px){.answer{font-size:17.5px}.lead{font-size:16px}}
.prose-body{max-width:42rem}
.prose-body p{color:#374151;font-size:15.5px;line-height:1.9;margin-top:1rem}
@media(min-width:768px){.prose-body p,.check-list li,.callout-body,.steps p,.defs dd,.faq-answer{font-size:16px}.defs dt{font-size:16px}}
.prose-body h3{font-size:1.15rem;margin-top:2rem}
.site-header{background:rgba(255,255,255,.88);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}

/* 카드 그리드 — 열 수 고정 (auto-fit 사용 안 함) */
.grid-6{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}
@media(min-width:768px){.grid-6{grid-template-columns:repeat(3,minmax(0,1fr));gap:1.5rem}}
.grid-4{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem}
@media(min-width:1024px){.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}}
/* 3개짜리 — 모바일 1열(세로 3개), PC 3열 */
.grid-3-stack{display:grid;grid-template-columns:1fr;gap:0}
@media(min-width:768px){.grid-3-stack{grid-template-columns:repeat(3,minmax(0,1fr))}}
.col-item{border-top:1px solid var(--line);padding:1.5rem 0}
@media(min-width:768px){.col-item{padding:1.75rem 1.5rem 0 0}}
.num{font-family:var(--font-display);font-size:1.5rem;color:var(--secondary);font-weight:var(--font-display-weight)}

.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:2px;overflow:hidden;transition:transform .2s ease}
.card:hover{transform:translateY(-2px)}
.card img,.photo-card img{transition:transform .35s ease}
.card:hover img,.photo-card:hover img{transform:scale(1.03)}
.card-body{padding:1rem 1rem 1.15rem}
@media(min-width:768px){.card-body{padding:1.15rem 1.25rem 1.35rem}}
.card-badge{font-size:.7rem;letter-spacing:.12em;color:var(--primary);font-weight:600;margin:0}
.photo-card{margin:0;border-radius:2px;overflow:hidden}
.photo-card figcaption{font-size:13.5px;color:var(--sub);padding:.7rem 0 0;border-top:0;line-height:1.5}

/* 표 */
.tbl{width:100%;max-width:64rem;border-collapse:collapse;font-size:14.5px}
@media(min-width:768px){.tbl{font-size:15.5px}}
.tbl th{text-align:left;font-family:var(--font-display);font-weight:var(--font-display-weight);padding:.8rem .75rem .8rem 0;border-bottom:1px solid var(--ink);white-space:nowrap}
.tbl td{padding:.85rem .75rem .85rem 0;border-bottom:1px solid var(--line);color:#374151;vertical-align:top;line-height:1.65}
.tbl td:first-child{color:var(--ink);font-weight:600;white-space:nowrap}

/* 체크 목록 */
.check-list{list-style:none;padding:0;margin:0}
.check-list li{position:relative;padding:.7rem 0 .7rem 1.4rem;border-bottom:1px solid var(--line);color:#374151;font-size:15px;line-height:1.7}
.check-list li::before{content:"";position:absolute;left:0;top:1.3rem;width:.6rem;height:2px;background:var(--accent)}

/* 버튼 */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:.85rem 1.6rem;border-radius:2px;font-weight:600;font-size:15px;letter-spacing:.01em;transition:opacity .2s ease,background .2s ease}
.btn:hover{opacity:.88}
.btn-sm{padding:.6rem 1.15rem;font-size:14px}
.btn-primary{background:var(--primary);color:#fff}
.btn-light{background:#fff;color:var(--primary)}
.btn-outline-dark{border:1px solid var(--primary);color:var(--primary);background:#fff}
.btn-outline-light{border:1px solid rgba(255,255,255,.85);color:#fff}
.link-line{border-bottom:1px solid transparent;transition:border-color .2s}
.link-line:hover{border-color:var(--accent);color:var(--ink)}

/* Hero 슬라이더 — 사진 전체 오버레이 없음, 하단만 옅게 + text-shadow */
.hero .slide{opacity:0;transition:opacity 1s ease}
.hero .slide.on{opacity:1}
.hero-fade{position:absolute;left:0;right:0;bottom:0;height:55%;background:linear-gradient(to top,rgba(0,0,0,.35),rgba(0,0,0,0))}
.hero-copy{position:absolute;left:0;right:0;bottom:0}
.hero-shadow{text-shadow:0 2px 8px rgba(0,0,0,.55),0 1px 2px rgba(0,0,0,.4)}
.hero-dots{display:flex;gap:.4rem}
.hero-dots button{width:22px;height:2px;background:rgba(255,255,255,.5);border:0;padding:0}
.hero-dots button.on{background:var(--accent)}

/* FAQ */
.faq-list{border-top:1px solid var(--ink)}
.faq-item{border-bottom:1px solid var(--line);padding:1.15rem 0}
.faq-item summary{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-plus{font-size:1.4rem;line-height:1;color:var(--primary);transition:transform .2s;flex-shrink:0}
.faq-item[open] .faq-plus{transform:rotate(45deg)}
.faq-answer{margin-top:.8rem;color:#4B5563;font-size:15px;line-height:1.85;max-width:46rem}

/* CTA + Footer — 사이 여백 없이 붙임 */
.cta-band{background:var(--primary);margin:0}
.site-footer{background:var(--bg-sub);margin:0;border-top:0}

.floating-btn{position:fixed;right:1.1rem;bottom:1.25rem;z-index:40;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;width:58px;height:58px;border-radius:2px;background:var(--primary);color:#fff;font-size:11px;font-weight:600}
.btn-top{position:fixed;right:1.1rem;bottom:5.4rem;z-index:40;width:58px;height:42px;background:#fff;border:1px solid var(--line);color:var(--primary);display:flex;align-items:center;justify-content:center}
.btn-top.hidden{display:none}
.lightbox{position:fixed;inset:0;z-index:50;background:rgba(12,16,22,.92);display:flex;align-items:center;justify-content:center;padding:1.5rem;cursor:zoom-out}
.lightbox.hidden{display:none}
.lightbox img{max-width:100%;max-height:100%}

@media(max-width:767px){
  .hero{height:68vh;min-height:420px}
  .answer{font-size:15.5px}
}

/* 섹션 제목 변형 */
.sec-bar{border-top:0;padding:.15rem 0 .15rem 1.1rem;border-left:3px solid var(--primary);max-width:46rem}
.sec-plain{border-top:0;padding-top:0}

/* 요점 박스 */
.callout{background:var(--bg-sub);border-left:3px solid var(--primary);padding:1.25rem 1.4rem;max-width:46rem}
.callout-title{font-family:var(--font-display);font-weight:800;font-size:1rem;margin:0}
.callout-body{margin-top:.6rem;color:#374151;font-size:15px;line-height:1.85}
.callout-body p{margin:.5rem 0 0}

/* 세로 타임라인 */
.steps{list-style:none;margin:0;padding:0;max-width:46rem;counter-reset:st}
.steps li{position:relative;padding:0 0 1.9rem 2.6rem;border-left:1px solid var(--line);margin-left:.55rem}
.steps li:last-child{border-left-color:transparent;padding-bottom:0}
.steps li::before{counter-increment:st;content:counter(st);position:absolute;left:-.8rem;top:0;width:1.6rem;height:1.6rem;border-radius:50%;background:var(--primary);color:#fff;font-size:.78rem;font-weight:700;display:flex;align-items:center;justify-content:center}
.step-label{display:block;font-size:.72rem;letter-spacing:.14em;color:var(--primary);font-weight:600;margin-bottom:.2rem}
.steps p{margin:.45rem 0 0;color:#4B5563;font-size:15px;line-height:1.85}

/* 정의 목록 */
.defs{margin:0;max-width:48rem}
.defs>div{display:grid;grid-template-columns:1fr;gap:.25rem;padding:1rem 0;border-bottom:1px solid var(--line)}
.defs>div:first-child{border-top:1px solid var(--ink)}
.defs dt{font-family:var(--font-display);font-weight:800;font-size:15.5px}
.defs dd{margin:0;color:#4B5563;font-size:15px;line-height:1.8}
@media(min-width:768px){.defs>div{grid-template-columns:11rem 1fr;gap:1.5rem}}

/* 하지 말 것 목록 */
.x-list{list-style:none;padding:0;margin:0}
.x-list li{position:relative;padding:.7rem 0 .7rem 1.4rem;border-bottom:1px solid var(--line);color:#374151;font-size:15px;line-height:1.7}
.x-list li::before{content:"";position:absolute;left:0;top:1.35rem;width:.6rem;height:2px;background:#9CA3AF}
.two-col{display:grid;grid-template-columns:1fr;gap:2rem}
@media(min-width:768px){.two-col{grid-template-columns:repeat(2,minmax(0,1fr));gap:3rem}}

/* 모바일 표 — 가로 스크롤 대신 항목별 카드로 */
@media(max-width:639px){
  .tbl,.tbl tbody,.tbl tr,.tbl td{display:block;width:100%}
  .tbl thead{position:absolute;left:-9999px}
  .tbl tr{padding:1rem 0;border-bottom:1px solid var(--line)}
  .tbl tr:first-child{border-top:1px solid var(--ink)}
  .tbl td{border:0;padding:.2rem 0;white-space:normal;line-height:1.7}
  .tbl td:first-child{font-weight:800;font-size:15.5px;color:var(--ink);padding-bottom:.35rem}
  .tbl td[data-label]:not(:first-child)::before{content:attr(data-label);display:inline-block;min-width:4.6rem;margin-right:.6rem;font-size:.75rem;color:var(--primary);font-weight:600}
}

/* 여백 리듬 보정 */
.sec-head+*{margin-top:0}
@media(max-width:767px){
  .sec-head h2{font-size:1.5rem}
  .prose-body p{font-size:15.5px;line-height:1.85}
  .callout{padding:1.1rem 1.15rem}
  .card-body h3{font-size:16px}
}
@media(max-width:767px){.card-body .desc{display:none}.card-body{padding-bottom:1rem}}