/* ═══ 구조 설정 ═══
   Hero 타입: hero-split / 섹션순서: 패턴 A(신뢰 우선형) / 그리드: grid-3 / 레이블: label-number / 버튼: btn-square
   Primary 컬러: 파스텔 스틸블루 #A0C4D8 (랜덤 선정)
   ═══════════════════════ */

:root{
  --primary:#A0C4D8;
  --primary-dark:#7EA9C2;
  --text:#242424;
  --text-muted:#6b6b6b;
  --border:#e4e2dd;
  --bg:#ffffff;
  --bg-soft:#f7f6f3;
  --card-radius:1.1rem;
  --max-w:1200px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Noto Sans KR', 'Pretendard', -apple-system, sans-serif;
  font-weight:400;
  color:var(--text);
  background:var(--bg);
  word-break:keep-all;
  line-height:1.6;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3{margin:0;font-weight:800;}
.container{max-width:var(--max-w);margin:0 auto;padding:0 1.25rem;}
section{padding:5rem 0;}
/* section과 container를 한 태그에 함께 쓴 경우(상세/NSEO 페이지) 상하 여백이 사라지는 것을 방지 */
section.container{padding:4.5rem 1.25rem;}
@media (max-width:768px){section.container{padding:3rem 1.25rem;}}
.section-sub{color:var(--text-muted);font-weight:300;margin-top:0.5rem;}

/* 섹션 레이블: label-number */
.section-label{display:flex;align-items:baseline;gap:0.5rem;font-size:0.75rem;font-weight:700;color:var(--primary-dark);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:0.75rem;}
.section-label::after{content:"";flex:1;height:1px;background:var(--border);margin-left:0.5rem;}

/* 버튼: btn-square */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:0.4rem;border-radius:6px;padding:0.85rem 1.75rem;font-weight:700;font-size:0.95rem;border:none;cursor:pointer;transition:all .25s ease;}
.btn-primary{background:var(--primary);color:#1c1c1c;}
.btn-primary:hover{background:var(--primary-dark);color:#fff;}
.btn-outline{background:transparent;border:1.5px solid var(--border);color:var(--text);}
.btn-outline:hover{border-color:var(--primary);color:var(--primary-dark);}
.btn-row{display:flex;gap:0.75rem;flex-wrap:wrap;}

/* ===== Header ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,0.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:72px;}
.site-header .brand{display:flex;align-items:center;gap:0.5rem;font-weight:800;font-size:1.15rem;}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;width:36px;height:36px;border-radius:9px;background:var(--primary-dark);color:#fff;font-size:0.95rem;font-weight:800;}
.site-header nav{display:flex;gap:2rem;}
.site-header nav a{font-weight:500;font-size:0.95rem;}
.site-header nav a:hover{color:var(--primary-dark);}
.header-cta{display:flex;align-items:center;gap:1rem;}
.hamburger{display:none;background:none;border:none;cursor:pointer;padding:0.5rem;}
.hamburger span{display:block;width:22px;height:2px;background:var(--text);margin:5px 0;}
.mobile-nav{display:none;position:fixed;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);z-index:99;}
.mobile-nav.open{display:block;}
.mobile-nav a{display:block;padding:1rem 1.25rem;border-top:1px solid var(--border);font-weight:500;}
@media (max-width:768px){
  .site-header nav{display:none;}
  .header-cta .btn-outline{display:none;}
  .hamburger{display:block;}
}
body{padding-top:72px;}

/* ===== Hero (hero-split) ===== */
.hero-split{padding:3.5rem 0;background:var(--bg-soft);}
.hero-split .container{display:grid;grid-template-columns:1.1fr 1fr;gap:3rem;align-items:center;}
.hero-split h1{font-size:2.5rem;line-height:1.3;font-family:'Noto Sans KR',sans-serif;}
.hero-split .hero-desc{margin:1.25rem 0 1.75rem;color:var(--text-muted);font-weight:300;font-size:1.05rem;}
.hero-services{display:flex;flex-direction:column;gap:0.75rem;margin-bottom:1.75rem;}
.hero-service-card{display:flex;align-items:center;gap:0.9rem;background:#fff;border:1px solid var(--border);border-radius:var(--card-radius);padding:0.9rem 1.1rem;}
.hero-service-card b{font-size:0.95rem;}
.hero-service-card span{display:block;color:var(--text-muted);font-size:0.82rem;font-weight:300;}
.hero-visual{position:relative;border-radius:1.25rem;overflow:hidden;aspect-ratio:4/5;}
.hero-visual .slide{position:absolute;inset:0;opacity:0;transition:opacity 1s ease;}
.hero-visual .slide.active{opacity:1;}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual-caption{position:absolute;left:0;right:0;bottom:0;padding:1.5rem;background:linear-gradient(transparent,rgba(0,0,0,.65));color:#fff;}
.hero-visual-caption b{display:block;font-size:1.05rem;}
.hero-visual-caption span{font-size:0.82rem;opacity:0.85;}
@media (max-width:900px){
  .hero-split .container{grid-template-columns:1fr;}
  .hero-split h1{font-size:1.9rem;}
  .hero-visual{aspect-ratio:16/10;}
}

/* ===== Portfolio ===== */
.portfolio-section{max-width:var(--max-w);margin:0 auto;padding:0 1.25rem;}
.portfolio-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;}
@media (max-width:1024px){.portfolio-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.portfolio-grid{grid-template-columns:1fr;}}
.portfolio-card{border:1px solid var(--border);border-radius:var(--card-radius);overflow:hidden;transition:all .3s ease;cursor:pointer;text-decoration:none;display:block;background:#fff;}
.portfolio-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(0,0,0,.14);border-color:var(--primary);}
.portfolio-card .card-thumb{aspect-ratio:4/3;overflow:hidden;}
.portfolio-card .card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.portfolio-card:hover .card-thumb img{transform:scale(1.05);}
.portfolio-card .card-body{padding:1.25rem;display:flex;flex-direction:column;gap:0.5rem;}
.card-badge{font-size:0.65rem;font-weight:700;letter-spacing:.08em;background:var(--primary);color:#1c1c1c;display:inline-block;padding:.2rem .6rem;border-radius:.25rem;align-self:flex-start;}
.card-title{font-weight:800;font-size:1rem;line-height:1.4;}
.card-sub{font-weight:300;font-size:.875rem;color:var(--text-muted);display:flex;align-items:center;gap:0.3rem;}
.card-more{font-size:.875rem;font-weight:600;color:var(--text-muted);margin-top:.25rem;transition:color .3s ease;}
.portfolio-card:hover .card-more{color:var(--primary-dark);}

/* ===== Services ===== */
.service-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:1rem;}
@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{display:block;text-decoration:none;color:inherit;border:1px solid var(--border);border-radius:var(--card-radius);overflow:hidden;background:#fff;transition:all .3s ease;}
.service-card:hover{border-color:var(--primary);transform:translateY(-4px);}
.service-card .thumb{aspect-ratio:3/4;overflow:hidden;background:var(--bg-soft);}
.service-card .thumb img{width:100%;height:100%;object-fit:cover;}
.service-card .body{padding:1rem;}
.service-card .eyebrow{font-size:.65rem;letter-spacing:.08em;color:var(--primary-dark);font-weight:700;text-transform:uppercase;}
.service-card h3{font-size:.95rem;margin:.35rem 0;}
.service-card p{font-size:.8rem;color:var(--text-muted);font-weight:300;margin:0 0 .5rem;}
.service-card .more{font-size:.8rem;font-weight:700;color:var(--text);}
.service-card:hover .more{color:var(--primary-dark);}

/* ===== Process ===== */
.process-row{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;}
@media (max-width:768px){.process-row{grid-template-columns:1fr;}}
.process-step{text-align:left;padding:1.5rem;border:1px solid var(--border);border-radius:var(--card-radius);}
.process-step .num{font-size:1.6rem;font-weight:800;color:var(--primary-dark);margin-bottom:.5rem;}
.process-step h3{font-size:1.05rem;margin-bottom:.4rem;}
.process-step p{font-size:.85rem;color:var(--text-muted);font-weight:300;margin:0;}

/* ===== About ===== */
.about-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:3rem;align-items:center;}
@media (max-width:900px){.about-grid{grid-template-columns:1fr;}}
.about-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;}
.stat-box{background:var(--bg-soft);border-radius:var(--card-radius);padding:1.5rem 1rem;text-align:center;}
.stat-box b{display:block;font-size:1.6rem;color:var(--primary-dark);}
.stat-box span{font-size:.8rem;color:var(--text-muted);}
.about-facts{margin-top:1.5rem;display:flex;flex-direction:column;gap:.5rem;font-size:.9rem;color:var(--text-muted);}

/* ===== Reviews ===== */
.review-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem;}
@media (max-width:1024px){.review-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.review-grid{grid-template-columns:1fr;}}
.review-card{border:1px solid var(--border);border-radius:var(--card-radius);padding:1.5rem;background:#fff;}
.review-stars{color:var(--primary-dark);font-size:.9rem;margin-bottom:.6rem;}
.review-text{font-size:.9rem;color:var(--text);margin-bottom:1rem;}
.review-who{display:flex;align-items:center;gap:.6rem;}
.review-avatar{width:34px;height:34px;border-radius:50%;background:var(--primary);color:#1c1c1c;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.8rem;}
.review-who b{font-size:.85rem;}
.review-who span{display:block;font-size:.75rem;color:var(--text-muted);}

/* ===== Areas ===== */
.area-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;}
@media (max-width:768px){.area-grid{grid-template-columns:1fr;}}
.area-card{border:1px solid var(--border);border-radius:var(--card-radius);padding:2rem 1.5rem;text-align:center;}
.area-card h3{font-size:1.1rem;margin-bottom:.5rem;}
.area-card p{font-size:.85rem;color:var(--text-muted);font-weight:300;margin:0;}

/* ===== FAQ ===== */
.faq-item{border-bottom:1px solid var(--border);}
.faq-q{width:100%;text-align:left;background:none;border:none;padding:1.25rem 0;font-size:1rem;font-weight:700;cursor:pointer;display:flex;justify-content:space-between;align-items:center;}
.faq-q .icon{transition:transform .25s ease;font-weight:400;color:var(--primary-dark);}
.faq-item.open .faq-q .icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;color:var(--text-muted);font-weight:300;font-size:.92rem;}
.faq-a p{margin:0 0 1.25rem;}

/* ===== CTA ===== */
.cta-section{background:var(--bg-soft);text-align:center;}
.cta-badges{display:flex;justify-content:center;gap:2rem;flex-wrap:wrap;margin:1.5rem 0 2rem;}
.cta-badges .badge{display:flex;align-items:center;gap:.4rem;font-size:.85rem;color:var(--text-muted);font-weight:500;}
.cta-badges svg{width:18px;height:18px;color:var(--primary-dark);}

/* ===== Footer ===== */
.site-footer{background:#1c1e20;color:#c9c9c9;padding:3.5rem 0 2rem;}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:2.5rem;}
@media (max-width:768px){.footer-grid{grid-template-columns:1fr;gap:2rem;}}
.footer-grid h4{color:#fff;font-size:.9rem;margin-bottom:1rem;}
.footer-grid ul li{margin-bottom:.55rem;font-size:.85rem;}
.footer-grid ul li a:hover{color:var(--primary);}
.footer-brand{font-size:1.1rem;font-weight:800;color:#fff;margin-bottom:.75rem;}
.footer-desc{font-size:.85rem;color:#9a9a9a;font-weight:300;}
.footer-bottom{border-top:1px solid #35373a;margin-top:2.5rem;padding-top:1.5rem;font-size:.78rem;color:#8a8a8a;line-height:1.8;}

/* ===== Floating buttons ===== */
.floating-btns{position:fixed;right:1.25rem;bottom:1.25rem;z-index:90;display:flex;flex-direction:column;gap:.6rem;}
.floating-btns a{display:flex;align-items:center;gap:.4rem;padding:.8rem 1.1rem;border-radius:6px;font-size:.85rem;font-weight:700;box-shadow:0 8px 20px rgba(0,0,0,.18);}
.floating-btns a.fb-call{background:var(--primary);color:#1c1c1c;}
.floating-btns a.fb-sms{background:#fff;border:1.5px solid var(--border);color:var(--text);}

/* ===== Detail page ===== */
.detail-hero{position:relative;height:400px;display:flex;align-items:flex-end;overflow:hidden;background:linear-gradient(135deg,var(--primary-dark),#5d84a0);}
.detail-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;}
.detail-hero::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(15,17,20,.25) 0%,rgba(12,13,15,.82) 100%);}
.detail-hero .container{position:relative;z-index:2;color:#fff;padding-bottom:2.75rem;}
.detail-hero h1{font-size:2.1rem;margin-top:.6rem;text-shadow:0 2px 14px rgba(0,0,0,.45);}
.detail-hero .section-sub{color:#ececeb;margin-top:.65rem;font-size:1rem;}
.detail-hero .card-badge{margin-top:.25rem;}
.breadcrumb{font-size:.8rem;color:rgba(255,255,255,.72);margin-bottom:1rem;}
.breadcrumb a{color:rgba(255,255,255,.72);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.info-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--border);border:1px solid var(--border);border-radius:var(--card-radius);overflow:hidden;margin-bottom:3.5rem;box-shadow:0 16px 40px rgba(0,0,0,.08);}
@media (max-width:768px){.info-bar{grid-template-columns:repeat(2,1fr);}}
.info-bar div{background:#fff;padding:1.5rem 1rem;text-align:center;}
.info-bar .label{display:block;font-size:.72rem;color:var(--text-muted);margin-bottom:.4rem;text-transform:uppercase;letter-spacing:.05em;}
.info-bar b{display:block;font-size:1.02rem;}
.detail-content p{font-weight:300;color:var(--text);margin:0 0 1rem;}
.content-heading{font-size:1.4rem;margin-bottom:1.5rem;}
.ba-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;margin-bottom:3.5rem;}
@media (max-width:640px){.ba-grid{grid-template-columns:1fr;}}
.ba-grid figure{margin:0;}
.ba-grid img{border-radius:var(--card-radius);aspect-ratio:4/3;object-fit:cover;box-shadow:0 10px 30px rgba(0,0,0,.08);}
.ba-grid figcaption{font-size:.85rem;color:var(--text-muted);margin-top:.75rem;text-align:center;}
.summary-box{background:var(--bg-soft);border-radius:var(--card-radius);padding:2.5rem;margin-bottom:3.5rem;}
.summary-box h2{font-size:1.4rem;margin-bottom:1.25rem;}
.summary-box p{font-weight:300;line-height:1.85;margin:0 0 1.1rem;}
.summary-box li{padding:.5rem 0 .5rem 1.4rem;position:relative;font-size:.92rem;}
.summary-box li::before{content:"";position:absolute;left:0;top:1.1rem;width:7px;height:7px;border-radius:50%;background:var(--primary-dark);}
.tech-quote{display:block;border-left:3px solid var(--primary);padding:1.5rem 1.75rem;background:#fff;border-radius:0 var(--card-radius) var(--card-radius) 0;font-size:.95rem;font-style:normal;line-height:1.75;margin-top:1.75rem;}
.tech-quote .sig{display:block;margin-top:1rem;font-weight:700;font-size:.85rem;color:var(--text-muted);}

/* ===== Consultation ===== */
.step-row{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;}
@media (max-width:768px){.step-row{grid-template-columns:1fr;}}
.guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;}
@media (max-width:640px){.guide-grid{grid-template-columns:1fr;}}

/* ===== Sitemap page ===== */
.sitemap-search{width:100%;padding:.9rem 1.1rem;border:1.5px solid var(--border);border-radius:6px;font-size:.95rem;margin-bottom:2rem;}
.sitemap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;}
@media (max-width:768px){.sitemap-grid{grid-template-columns:1fr;}}
.sitemap-cat{border:1px solid var(--border);border-radius:var(--card-radius);padding:1.25rem;}
.sitemap-cat h4{font-size:.9rem;margin-bottom:.75rem;color:var(--primary-dark);}
.sitemap-cat li{font-size:.85rem;margin-bottom:.5rem;}

/* ===== Compare table ===== */
.compare-table{width:100%;border-collapse:collapse;margin-bottom:2.5rem;font-size:.92rem;}
.compare-table th,.compare-table td{border:1px solid var(--border);padding:.9rem 1rem;text-align:left;}
.compare-table th{background:var(--bg-soft);color:var(--primary-dark);font-weight:700;}
.compare-table td{font-weight:300;color:var(--text);}

/* ===== 404 ===== */
.error-page{min-height:70vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:3rem 1rem;}
.error-page .code{font-size:5rem;font-weight:800;color:var(--primary-dark);}