/* Primary: 다크 틸 #1a4a4a — 인테리어·리폼 업종 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#1a4a4a;
  --primary-dark:#123232;
  --primary-light:#2a6060;
  --primary-rgb:26,74,74;
  --accent:#4a9e9e;
  --accent-light:#5ab8b8;
  --text:#1a1a1a;
  --text-muted:#6b7280;
  --bg:#ffffff;
  --bg-2:#f7f9f9;
  --bg-3:#eef3f3;
  --border:#d4e0e0;
  --card-radius:1rem;
  --shadow-sm:0 2px 8px rgba(0,0,0,.06);
  --shadow-md:0 8px 24px rgba(0,0,0,.10);
  --shadow-lg:0 16px 40px rgba(0,0,0,.14);
  --section-gap:5rem;
  --max-w:1200px;
  --header-h:68px;
}
html{scroll-behavior:smooth}
body{font-family:'Pretendard',sans-serif;color:var(--text);background:var(--bg);word-break:keep-all;overflow-wrap:break-word;line-height:1.7}
h1,h2,h3,h4{font-weight:800;line-height:1.3}
h1{font-size:clamp(1.75rem,4vw,2.75rem)}
h2{font-size:clamp(1.5rem,3vw,2.25rem)}
h3{font-size:clamp(1.05rem,2vw,1.3rem)}
p{font-weight:300;line-height:1.8}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{display:block;max-width:100%;height:auto}

/* Layout */
.container{max-width:var(--max-w);margin:0 auto;padding:0 1.25rem}
.section{padding:var(--section-gap) 0}
.section-alt{background:var(--bg-2)}
.section-label{display:inline-block;font-size:.75rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--primary);background:rgba(26,74,74,.08);padding:4px 14px;border-radius:99px;margin-bottom:.75rem}
.section-heading{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:800;margin-bottom:.75rem}
.section-sub{font-size:1rem;color:var(--text-muted);font-weight:300;max-width:560px}
.text-center{text-align:center}
.text-center .section-sub{margin:0 auto}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.75rem;border-radius:9999px;font-weight:700;font-size:.95rem;cursor:pointer;transition:all .25s ease;border:2px solid transparent;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-light);transform:translateY(-2px);box-shadow:0 8px 24px rgba(26,74,74,.30)}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}
.btn-white{background:#fff;color:var(--primary);border-color:#fff}
.btn-white:hover{background:transparent;color:#fff;transform:translateY(-2px)}
.btn-white-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-white-outline:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}

/* Header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--header-h);background:rgba(255,255,255,.95);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);transition:all .3s ease}
.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between}
.logo{flex-shrink:0;display:flex;flex-direction:column;line-height:1.2}
.logo-brand{font-size:1.1rem;font-weight:800;color:var(--primary)}
.logo-sub{font-size:.68rem;font-weight:400;color:var(--text-muted)}
.header-actions{display:flex;align-items:center;gap:.75rem}
.btn-header-cta{background:var(--primary);color:#fff;padding:.55rem 1.35rem;border-radius:9999px;font-size:.875rem;font-weight:700;transition:all .25s}
.btn-header-cta:hover{background:var(--primary-light);transform:translateY(-1px)}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}
.hamburger span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:all .3s}
.hamburger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
.mobile-nav{display:none;position:fixed;top:var(--header-h);left:0;right:0;background:#fff;border-bottom:1px solid var(--border);padding:1rem 1.25rem 1.5rem;z-index:999;box-shadow:var(--shadow-md)}
.mobile-nav.active{display:block}
.mobile-nav li{border-bottom:1px solid var(--border)}
.mobile-nav a{display:block;padding:.75rem 0;font-size:.95rem;font-weight:600}
.mobile-nav .mobile-cta{color:var(--primary);font-weight:800}
@media(max-width:768px){
  .hamburger{display:flex}
  .btn-header-cta{font-size:.8rem;padding:.45rem 1rem}
}

/* Page main offset */
.page-main{padding-top:var(--header-h);overflow-x:hidden}

/* Hero Overlay */
.hero-section{position:relative;min-height:92vh;display:flex;align-items:center;justify-content:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;background:rgba(0,0,0,.45);z-index:1}
.hero-content{position:relative;z-index:2;color:#fff;padding:2rem 1.25rem;max-width:720px}
.hero-content h1{font-size:clamp(2rem,5vw,3.25rem);font-weight:800;text-shadow:0 2px 20px rgba(0,0,0,.5);margin-bottom:1rem}
.hero-content p{font-size:clamp(.95rem,2vw,1.15rem);font-weight:300;text-shadow:0 1px 10px rgba(0,0,0,.4);margin-bottom:2rem;color:rgba(255,255,255,.92);line-height:1.8}
.hero-btns{display:flex;gap:1rem;flex-wrap:wrap}
.breadcrumb{display:flex;align-items:center;gap:.5rem;font-size:.8rem;margin-bottom:1.25rem;color:rgba(255,255,255,.7)}
.breadcrumb a{color:rgba(255,255,255,.7)}
.breadcrumb span{color:rgba(255,255,255,.4)}

/* SERVICE Section (first) */
#service{background:var(--bg)}
.service-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:1rem;margin-top:2rem}
@media(max-width:1024px){.service-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:640px){.service-grid{grid-template-columns:repeat(2,1fr)}}
.service-card{border:1px solid var(--border);border-radius:var(--card-radius);overflow:hidden;transition:all .3s ease;display:block;background:#fff;text-decoration:none}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary)}
.service-thumb{aspect-ratio:3/4;overflow:hidden}
.service-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.service-card:hover .service-thumb img{transform:scale(1.04)}
.service-body{padding:1.1rem;display:flex;flex-direction:column;gap:.5rem}
.service-body h3{font-size:.9rem;font-weight:800;line-height:1.35}
.service-desc{font-size:.78rem;font-weight:300;color:var(--text-muted);overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.service-more{font-size:.78rem;font-weight:600;color:var(--text-muted);transition:color .3s}
.service-card:hover .service-more{color:var(--primary)}

/* Hero Slider Section */
.hero-slider-section{position:relative;overflow:hidden}
.slider-wrap{position:relative}
.slider-track{display:flex;transition:opacity .6s ease}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .6s ease}
.slide.active{opacity:1;position:relative}
.slide img{width:100%;height:520px;object-fit:cover}
@media(max-width:768px){.slide img{height:320px}}
.slider-overlay{position:absolute;inset:0;background:rgba(0,0,0,.38);display:flex;align-items:center;z-index:2}
.slider-content{padding:0 1.25rem;max-width:var(--max-w);margin:0 auto;width:100%}
.slider-brand{font-size:.75rem;letter-spacing:.15em;text-transform:uppercase;color:rgba(255,255,255,.8);margin-bottom:.75rem}
.slider-keyword{font-size:clamp(1.5rem,3.5vw,2.5rem);font-weight:800;color:#fff;margin-bottom:.75rem;line-height:1.25;text-shadow:0 2px 16px rgba(0,0,0,.4)}
.slider-desc{font-size:.95rem;color:rgba(255,255,255,.85);margin-bottom:1.5rem;line-height:1.7;max-width:480px}
.slider-btns{display:flex;gap:.75rem;flex-wrap:wrap}
.slider-tags{margin-top:1rem;font-size:.78rem;color:rgba(255,255,255,.7);letter-spacing:.04em}
.slider-indicators{position:absolute;bottom:1.25rem;left:50%;transform:translateX(-50%);display:flex;gap:.5rem;z-index:3}
.slider-dot{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.45);border:none;cursor:pointer;transition:background .3s,transform .3s;padding:0}
.slider-dot.active{background:#fff;transform:scale(1.25)}

/* Gallery Section */
#gallery{background:var(--bg-2)}
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-top:2rem}
@media(max-width:1024px){.gallery-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.gallery-grid{grid-template-columns:1fr}}
.gallery-card{border:1px solid var(--border);border-radius:var(--card-radius);overflow:hidden;transition:all .3s ease;display:block;background:#fff;text-decoration:none;color:inherit}
.gallery-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.gallery-card .card-thumb{position:relative;aspect-ratio:4/3;overflow:hidden}
.gallery-card .card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.gallery-card:hover .card-thumb img{transform:scale(1.03)}
.case-badge{position:absolute;top:.75rem;left:.75rem;font-size:.65rem;font-weight:700;letter-spacing:.1em;background:var(--primary);color:#fff;padding:.2rem .6rem;border-radius:.25rem}
.gallery-card .card-body{padding:1.25rem;display:flex;flex-direction:column;gap:.4rem}
.card-title{font-weight:800;font-size:1rem;line-height:1.4}
.card-sub{font-weight:300;font-size:.875rem;color:var(--text-muted)}
.card-more{font-size:.875rem;font-weight:600;color:var(--text-muted);transition:color .3s}
.gallery-card:hover .card-more{color:var(--primary)}

/* Why Us Section */
#why-us{background:var(--bg)}
.why-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;margin-top:2rem}
@media(max-width:768px){.why-grid{grid-template-columns:1fr}}
.why-card{background:var(--bg-2);border-radius:var(--card-radius);padding:2rem;border:1px solid var(--border)}
.why-card h3{font-size:1.05rem;font-weight:800;margin-bottom:.75rem;color:var(--primary)}
.why-card p{font-size:.9rem;color:var(--text-muted);line-height:1.8}

/* Process Section */
#process-section{background:var(--primary-dark)}
#process-section .section-label{background:rgba(255,255,255,.12);color:#fff}
#process-section .section-heading{color:#fff}
#process-section .section-sub{color:rgba(255,255,255,.65)}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:2.5rem;position:relative}
.process-grid::before{content:'';position:absolute;top:40px;left:calc(12.5%);right:calc(12.5%);height:2px;background:rgba(255,255,255,.15);z-index:0}
@media(max-width:860px){.process-grid{grid-template-columns:repeat(2,1fr);gap:2rem}.process-grid::before{display:none}}
@media(max-width:460px){.process-grid{grid-template-columns:1fr}}
.process-step{display:flex;flex-direction:column;align-items:center;text-align:center;padding:0 16px;position:relative;z-index:1}
.process-num{width:80px;height:80px;border-radius:50%;background:var(--primary-light);border:3px solid rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-bottom:1.25rem}
.process-num-text{font-size:1.2rem;font-weight:800;color:#fff;line-height:1}
.process-step h3{font-size:.9375rem;font-weight:700;color:#fff;margin-bottom:.5rem}
.process-step p{font-size:.8125rem;color:rgba(255,255,255,.62);line-height:1.65}

/* FAQ */
#faq-section{background:var(--bg-2)}
.faq-list{max-width:760px;margin:2rem auto 0;display:flex;flex-direction:column;gap:.75rem}
.faq-item{background:var(--bg);border-radius:var(--card-radius);border:1px solid var(--border);overflow:hidden}
.faq-btn{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:1.2rem 1.5rem;background:none;border:none;cursor:pointer;text-align:left;font-family:inherit}
.faq-question{font-size:.9375rem;font-weight:700;color:var(--text);line-height:1.5}
.faq-icon{flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--bg-2);display:flex;align-items:center;justify-content:center;transition:background .25s,transform .25s}
.faq-item.open .faq-icon{background:var(--primary);transform:rotate(45deg)}
.faq-item.open .faq-icon svg{stroke:#fff}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s ease;padding:0 1.5rem}
.faq-item.open .faq-answer{max-height:300px;padding:0 1.5rem 1.25rem}
.faq-answer p{font-size:.9rem;color:var(--text-muted);line-height:1.8;border-top:1px solid var(--border);padding-top:1rem}

/* CTA Section */
.cta-section{background:linear-gradient(rgba(100,100,100,.4),rgba(100,100,100,.4)),url('/assets/images/hero-03.webp') center/cover no-repeat;padding:5rem 0}
.cta-inner{text-align:center;max-width:680px;margin:0 auto}
.cta-section .section-label{background:rgba(255,255,255,.12);color:#fff}
.cta-heading{font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:800;color:#fff;margin-bottom:1rem;line-height:1.25}
.cta-desc{font-size:1rem;color:rgba(255,255,255,.78);line-height:1.75;margin-bottom:2.25rem}
.cta-badges{display:flex;flex-wrap:wrap;justify-content:center;gap:1rem;margin-bottom:2.25rem}
.cta-badge{display:flex;align-items:center;gap:.6rem;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.20);border-radius:99px;padding:.55rem 1.2rem}
.cta-badge svg{flex-shrink:0;opacity:.85}
.cta-badge span{font-size:.875rem;font-weight:700;color:#fff;white-space:nowrap}
.cta-btn-wrap{display:flex;flex-wrap:wrap;justify-content:center;gap:.875rem}
.cta-btn-primary{display:inline-flex;align-items:center;gap:.5rem;background:#fff;color:var(--primary);font-weight:700;font-size:1rem;padding:.95rem 2.25rem;border-radius:99px;transition:all .25s}
.cta-btn-primary:hover{background:rgba(255,255,255,.9);transform:translateY(-2px)}
.cta-btn-secondary{display:inline-flex;align-items:center;gap:.5rem;background:transparent;color:#fff;font-weight:700;font-size:1rem;padding:.95rem 2.25rem;border-radius:99px;border:2px solid rgba(255,255,255,.45);transition:all .25s}
.cta-btn-secondary:hover{border-color:rgba(255,255,255,.85);background:rgba(255,255,255,.06);transform:translateY(-2px)}

/* Footer */
.site-footer{background:#0f2828;color:#8fa8a8;padding:3rem 0 0}
.footer-inner{display:grid;grid-template-columns:2fr 1fr;gap:3rem;padding-bottom:2.5rem}
@media(max-width:768px){.footer-inner{grid-template-columns:1fr;gap:2rem}}
.footer-logo{font-size:1.15rem;font-weight:800;color:#fff;margin-bottom:.75rem}
.footer-desc{font-size:.85rem;font-weight:300;line-height:1.7;margin-bottom:1rem}
.footer-consult-link{display:inline-block;font-size:.875rem;font-weight:700;color:var(--accent-light);transition:color .2s}
.footer-consult-link:hover{color:#fff}
.footer-nav-col h4{font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:#555;margin-bottom:.75rem}
.footer-nav-col ul{display:flex;flex-direction:column;gap:.4rem}
.footer-nav-col a{font-size:.875rem;font-weight:300;color:#8fa8a8;transition:color .2s}
.footer-nav-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid #1a3a3a;padding-top:1.5rem;padding-bottom:1.5rem;font-size:.75rem;color:#4a6060;line-height:1.8}

/* Floating */
.floating-wrap{position:fixed;bottom:1.5rem;right:1.5rem;z-index:9999}
.floating-btn{display:flex;align-items:center;gap:.5rem;background:var(--primary);color:#fff;padding:.75rem 1.35rem;border-radius:99px;font-size:.875rem;font-weight:700;box-shadow:0 4px 20px rgba(26,74,74,.40);transition:all .3s;position:relative}
.floating-btn::before{content:'';position:absolute;inset:-4px;border-radius:99px;border:2px solid var(--primary);opacity:.5;animation:pulse-ring 3s infinite}
.floating-btn:hover{background:var(--primary-light);transform:translateY(-2px)}
@keyframes pulse-ring{
  0%{transform:scale(1);opacity:.5}
  70%{transform:scale(1.15);opacity:0}
  100%{transform:scale(1.15);opacity:0}
}

/* Animations */
.fade-in-up{opacity:0;transform:translateY(28px);transition:opacity .6s cubic-bezier(.16,1,.3,1),transform .6s cubic-bezier(.16,1,.3,1)}
.fade-in-up.is-visible{opacity:1;transform:translateY(0)}

/* Contact page */
.step-row{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
@media(max-width:768px){.step-row{grid-template-columns:1fr}}
.step-card{background:var(--bg-2);border-radius:var(--card-radius);padding:2rem;border:1px solid var(--border);text-align:center}
.step-num{width:3.5rem;height:3.5rem;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:1rem;font-weight:800;margin:0 auto 1.25rem}
.step-card h3{font-size:1rem;font-weight:800;margin-bottom:.75rem}
.step-card p{font-size:.875rem;color:var(--text-muted);line-height:1.75}
.notice-box{background:var(--bg-3);border-radius:var(--card-radius);padding:2rem 2.25rem;border-left:4px solid var(--primary)}
.notice-box h3{font-size:1rem;font-weight:800;margin-bottom:1rem;color:var(--primary)}
.notice-box ul{display:flex;flex-direction:column;gap:.6rem}
.notice-box li{font-size:.875rem;color:var(--text-muted);padding-left:1rem;position:relative}
.notice-box li::before{content:"·";position:absolute;left:0;color:var(--primary);font-weight:700}

/* Portfolio detail */
.detail-info-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;background:var(--bg-2);padding:1.5rem;border-radius:var(--card-radius);border:1px solid var(--border);margin:2rem 0}
@media(max-width:768px){.detail-info-bar{grid-template-columns:repeat(2,1fr)}}
.info-item{text-align:center}
.info-label{font-size:.72rem;font-weight:700;letter-spacing:.08em;color:var(--text-muted);text-transform:uppercase;margin-bottom:.35rem}
.info-value{font-size:.95rem;font-weight:700;color:var(--text)}
.detail-images{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin-top:1.5rem}
.detail-images img{border-radius:.75rem;width:100%;aspect-ratio:4/3;object-fit:cover}
.summary-box{background:var(--bg-3);border-radius:var(--card-radius);padding:1.75rem 2rem;border-left:4px solid var(--primary);margin-top:1.5rem}
.summary-box ul{display:flex;flex-direction:column;gap:.5rem}
.summary-box li{font-size:.9rem;color:var(--text-muted);padding-left:1.1rem;position:relative;line-height:1.7}
.summary-box li::before{content:"·";position:absolute;left:0;color:var(--primary);font-weight:700}
.process-step-block{margin-bottom:2rem}
.step-badge-small{display:inline-flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;border-radius:50%;background:var(--primary);color:#fff;font-size:.875rem;font-weight:800;flex-shrink:0;margin-bottom:.75rem}

/* NSEO sub-hero */
.nseo-hero{position:relative;min-height:55vh;display:flex;align-items:center;overflow:hidden}
.nseo-hero .hero-bg img{height:55vh;min-height:400px}

/* Related services */
.related-services{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;margin-top:1.5rem}
@media(max-width:768px){.related-services{grid-template-columns:1fr}}
.related-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--card-radius);padding:1.5rem;transition:all .25s}
.related-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.related-card h4{font-size:.9375rem;font-weight:800;margin-bottom:.35rem;color:var(--primary)}
.related-card p{font-size:.8125rem;color:var(--text-muted)}
.related-card.current{background:var(--bg-3);cursor:default}
.current-label{font-size:.7rem;font-weight:700;color:var(--primary);letter-spacing:.05em;margin-bottom:.35rem}

/* Sitemap */
.sitemap-section{max-width:900px;margin:0 auto}
.sitemap-group{margin-bottom:2.5rem}
.sitemap-group h3{font-size:1rem;font-weight:800;color:var(--primary);margin-bottom:1rem;padding-bottom:.5rem;border-bottom:2px solid var(--primary)}
.sitemap-links{display:flex;flex-direction:column;gap:.4rem}
.sitemap-links a{font-size:.9rem;color:var(--text-muted);transition:color .2s}
.sitemap-links a:hover{color:var(--primary)}

/* Comparison table */
.compare-table{width:100%;border-collapse:collapse;margin-top:1.25rem}
.compare-table th,.compare-table td{padding:.875rem 1rem;text-align:left;border:1px solid var(--border);font-size:.9rem}
.compare-table th{background:var(--primary);color:#fff;font-weight:700}
.compare-table tr:nth-child(even) td{background:var(--bg-2)}
.compare-note{font-size:.78rem;color:var(--text-muted);margin-top:.75rem}

/* Before/After grid */
.ba-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin-top:1.25rem}
.ba-grid img{border-radius:.75rem;width:100%;aspect-ratio:4/3;object-fit:cover}
.ba-caption{text-align:center;font-size:.78rem;color:var(--text-muted);margin-top:.4rem}