:root {
  --clr-primary:      #23291F;
  --clr-accent:       #C97C3D;
  --clr-accent-dark:  #A85F27;
  --clr-accent-rgb:   201,124,61;
  --clr-bg:           #FAF8F3;
  --clr-bg-alt:       #F2EEE3;
  --clr-bg-card:      #ECE4D3;
  --clr-bg-footer:    #1B1F17;
  --clr-text:         #23291F;
  --clr-text-muted:   #6B6B5F;
  --clr-border:       #E1D9C8;

  --shadow-sm: 0 2px 8px rgba(35,41,31,.06);
  --shadow-md: 0 6px 24px rgba(35,41,31,.10), 0 2px 8px rgba(35,41,31,.06);
  --shadow-lg: 0 16px 48px rgba(35,41,31,.13), 0 4px 14px rgba(35,41,31,.07);
  --shadow-accent: 0 8px 28px rgba(var(--clr-accent-rgb),.35);

  --radius-sm: 2px;
  --radius-md: 0px;
  --radius-full: 2px;

  --ease-expo: cubic-bezier(0.16, 1, 0.3, 1);

  --font-heading: 'Pretendard', -apple-system, 'Apple SD Gothic Neo', sans-serif;
  --font-body:    'Pretendard', -apple-system, 'Apple SD Gothic Neo', sans-serif;
  --font-label:   'Space Grotesk', 'Pretendard', sans-serif;

  --header-h: 72px;
  --container: 1200px;
  --section-v: 120px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-body); color: var(--clr-text); background: var(--clr-bg); line-height: 1.6; word-break: keep-all; -webkit-font-smoothing: antialiased; }
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 800; letter-spacing: -0.03em; word-break: keep-all; }
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
table { border-collapse: collapse; width: 100%; }

.section-container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
#site-header { position: sticky; top: 0; z-index: 900; height: var(--header-h); background: rgba(250,248,243,.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--clr-border); }
.header-inner { max-width: var(--container); margin: 0 auto; padding: 0 24px; height: 100%; display: flex; align-items: center; justify-content: space-between; }
.brand-logo { font-family: var(--font-label); font-weight: 700; font-size: 1.2rem; letter-spacing: -0.02em; color: var(--clr-primary); }
.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a { font-size: .88rem; font-weight: 600; color: var(--clr-text); padding: 8px 12px; border-radius: var(--radius-sm); white-space: nowrap; transition: color .2s, background .2s; }
.site-nav a:hover { background: var(--clr-bg-card); }
.site-nav .nav-cta { background: var(--clr-accent); color: #fff; padding: 9px 18px; border-radius: var(--radius-full); font-weight: 700; margin-left: 8px; }
.hamburger { display: none; flex-direction: column; gap: 5px; width: 36px; height: 36px; padding: 8px 6px; justify-content: center; }
.hamburger span { display: block; height: 2px; background: var(--clr-primary); }
.mobile-nav { display: none; position: fixed; inset: var(--header-h) 0 auto 0; background: rgba(250,248,243,.98); backdrop-filter: blur(16px); padding: 16px 24px 28px; border-bottom: 1px solid var(--clr-border); z-index: 899; }
.mobile-nav.open { display: block; }
.mobile-nav a { display: block; font-size: 1rem; font-weight: 600; padding: 14px 12px; border-bottom: 1px solid var(--clr-border); }
.mobile-nav a.mobile-cta { margin-top: 10px; background: var(--clr-accent); color: #fff; text-align: center; border-radius: var(--radius-full); border-bottom: none; font-weight: 700; }

@media (max-width: 860px) { .site-nav { display: none; } .hamburger { display: flex; } }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-weight: 700; font-size: .92rem; padding: 14px 26px; border-radius: var(--radius-full); transition: transform .2s var(--ease-expo), box-shadow .2s; }
.btn-primary { background: var(--clr-accent); color: #fff; box-shadow: var(--shadow-accent); }
.btn-primary:hover { transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--clr-primary); border: 1px solid var(--clr-border); }
.btn-outline:hover { border-color: var(--clr-accent); color: var(--clr-accent-dark); }

/* ---------- Hero ---------- */
.hero-section { padding: calc(var(--header-h) + 48px) 24px 72px; background: linear-gradient(180deg, var(--clr-bg-alt), var(--clr-bg)); }
.hero-grid { max-width: var(--container); margin: 0 auto; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero-tag { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-label); font-size: .72rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--clr-text-muted); border: 1px solid var(--clr-border); padding: 6px 14px; margin-bottom: 24px; }
.hero-tag .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--clr-accent); }
.hero-h1 { font-size: clamp(2.4rem, 4.6vw, 3.6rem); line-height: 1.25; color: var(--clr-primary); margin-bottom: 18px; }
.hero-h1 em { font-style: normal; color: var(--clr-accent-dark); }
.hero-lead { font-size: 1rem; color: var(--clr-text-muted); margin-bottom: 28px; max-width: 480px; }
.hero-cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 28px; }
.hero-stats { display: flex; gap: 28px; flex-wrap: wrap; }
.hero-stat b { display: block; font-family: var(--font-label); font-size: 1.4rem; font-weight: 700; color: var(--clr-primary); }
.hero-stat span { font-size: .8rem; color: var(--clr-text-muted); }
.hero-photo { position: relative; }
.hero-photo img { width: 100%; height: 460px; object-fit: cover; border: 1px solid var(--clr-border); box-shadow: var(--shadow-lg); }
@media (max-width: 860px) { .hero-grid { grid-template-columns: 1fr; } .hero-photo img { height: 300px; } }

.trust-bar { background: var(--clr-bg-card); border-top: 1px solid var(--clr-border); border-bottom: 1px solid var(--clr-border); padding: 24px 0; }
.trust-row { display: flex; gap: 32px; flex-wrap: wrap; justify-content: center; font-size: .88rem; color: var(--clr-text-muted); }
.trust-row b { color: var(--clr-primary); }

/* ---------- Section generic ---------- */
.section { padding: var(--section-v) 0; }
.section-alt { background: var(--clr-bg-alt); }
.section-head { max-width: 640px; margin-bottom: 48px; }
.section-eyebrow { font-family: var(--font-label); font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--clr-accent-dark); margin-bottom: 12px; display: block; }
.section-h2 { font-size: clamp(1.9rem, 3.4vw, 2.8rem); line-height: 1.3; color: var(--clr-primary); }
.section-lead { font-size: .95rem; color: var(--clr-text-muted); margin-top: 14px; max-width: 560px; }
@media (max-width: 860px) { :root { --section-v: 64px; } }

/* ---------- Cards / Grids ---------- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 860px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }
@media (min-width: 861px) and (max-width: 1080px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }

.card { background: var(--clr-bg-alt); border: 1px solid var(--clr-border); border-top: 3px solid transparent; padding: 28px 24px; transition: border-top-color .3s, transform .3s var(--ease-expo); }
.card:hover { border-top-color: var(--clr-accent); transform: translateY(-3px); }
.card h3 { font-size: 1.1rem; margin-bottom: 10px; color: var(--clr-primary); }
.card p { font-size: .9rem; color: var(--clr-text-muted); }
.card .card-icon { width: 40px; height: 40px; margin-bottom: 16px; color: var(--clr-accent-dark); }

/* ---------- Case / Portfolio cards ---------- */
.case-card { background: #fff; border: 1px solid var(--clr-border); overflow: hidden; box-shadow: var(--shadow-sm); transition: box-shadow .3s, transform .3s var(--ease-expo); }
.case-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.case-card img { width: 100%; height: 220px; object-fit: cover; }
.case-card-body { padding: 20px; }
.case-card-title { font-size: 1.02rem; font-weight: 700; color: var(--clr-primary); margin-bottom: 8px; }
.case-meta-row { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: .8rem; color: var(--clr-text-muted); margin-bottom: 8px; }
.case-meta-row b { color: var(--clr-text); }
.case-summary { font-size: .86rem; color: var(--clr-text-muted); }
.case-link { display: inline-block; margin-top: 12px; font-size: .84rem; font-weight: 700; color: var(--clr-accent-dark); }

/* ---------- Table ---------- */
.cost-table { border: 1px solid var(--clr-border); font-size: .9rem; }
.cost-table th, .cost-table td { padding: 14px 16px; border-bottom: 1px solid var(--clr-border); text-align: left; }
.cost-table th { background: var(--clr-bg-card); font-weight: 700; color: var(--clr-primary); }
.cost-table tr:last-child td { border-bottom: none; }

/* ---------- Process steps ---------- */
.process-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 860px) { .process-row { grid-template-columns: 1fr; } }
.process-step { position: relative; padding: 24px 20px; background: #fff; border: 1px solid var(--clr-border); }
.process-num { font-family: var(--font-label); font-size: .8rem; font-weight: 700; color: var(--clr-accent-dark); margin-bottom: 10px; display: block; }
.process-step h3 { font-size: 1rem; margin-bottom: 8px; }
.process-step p { font-size: .85rem; color: var(--clr-text-muted); }

/* ---------- Coverage (지역) ---------- */
.coverage-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.coverage-tag { font-size: .84rem; font-weight: 600; padding: 8px 16px; border: 1px solid var(--clr-border); background: #fff; color: var(--clr-text); }

/* ---------- FAQ ---------- */
.faq-item { border-bottom: 1px solid var(--clr-border); padding: 20px 0; }
.faq-q { font-size: 1rem; font-weight: 700; color: var(--clr-primary); margin-bottom: 8px; }
.faq-a { font-size: .9rem; color: var(--clr-text-muted); }

/* ---------- Brand definition (G-6) ---------- */
.brand-def { background: #fff; border: 1px solid var(--clr-border); padding: 40px; }
.brand-def-quote { font-size: 1.15rem; font-weight: 700; color: var(--clr-primary); margin-bottom: 18px; line-height: 1.5; }
.brand-def p { font-size: .92rem; color: var(--clr-text-muted); margin-bottom: 14px; }
.brand-def-facts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 24px; }
.brand-fact { font-size: .84rem; padding: 12px 16px; background: var(--clr-bg-alt); border: 1px solid var(--clr-border); }
.brand-fact b { display: block; color: var(--clr-primary); }
@media (max-width: 860px) { .brand-def-facts { grid-template-columns: 1fr; } .brand-def { padding: 28px 20px; } }

/* ---------- CTA banner ---------- */
.cta-banner-section { padding: 64px 0; background: var(--clr-primary); }
.cta-banner-inner { max-width: var(--container); margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cta-banner-h2 { font-size: clamp(1.3rem, 2vw, 1.7rem); color: #fff; line-height: 1.3; }
.cta-banner-sub { font-size: .88rem; color: rgba(255,255,255,.6); margin-top: 6px; }

/* ---------- Footer ---------- */
#site-footer { background: var(--clr-bg-footer); color: rgba(255,255,255,.7); padding: 56px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand { font-family: var(--font-label); font-size: 1.1rem; font-weight: 700; color: #fff; margin-bottom: 10px; }
.footer-col h4 { font-size: .84rem; font-weight: 700; color: #fff; margin-bottom: 14px; }
.footer-col a, .footer-col p { display: block; font-size: .84rem; margin-bottom: 8px; color: rgba(255,255,255,.6); }
.footer-legal { border-top: 1px solid rgba(255,255,255,.12); padding-top: 20px; font-size: .76rem; color: rgba(255,255,255,.4); line-height: 1.8; }

/* ---------- Floating CTA ---------- */
#floating-cta { position: fixed; bottom: 24px; right: 24px; z-index: 800; display: flex; align-items: center; gap: 8px; background: var(--clr-accent); color: #fff; height: 52px; padding: 0 20px; box-shadow: var(--shadow-accent); font-weight: 700; font-size: .88rem; }
.mobile-sticky-bar { display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 800; background: #fff; border-top: 1px solid var(--clr-border); padding: 10px 16px; gap: 10px; }
@media (max-width: 640px) {
  #floating-cta { display: none; }
  .mobile-sticky-bar { display: flex; }
  .mobile-sticky-bar a { flex: 1; text-align: center; padding: 13px 8px; font-size: .9rem; font-weight: 700; }
}

/* ---------- Inner page (case / NSEO) ---------- */
.inner-hero { padding: calc(var(--header-h) + 40px) 0 40px; background: var(--clr-bg-alt); border-bottom: 1px solid var(--clr-border); }
.breadcrumb { font-size: .8rem; color: var(--clr-text-muted); margin-bottom: 16px; }
.breadcrumb a { color: var(--clr-accent-dark); font-weight: 600; }
.inner-h1 { font-size: clamp(1.7rem, 3.4vw, 2.6rem); color: var(--clr-primary); line-height: 1.3; margin-bottom: 10px; }
.inner-sub { font-size: .95rem; color: var(--clr-text-muted); }
.detail-section { padding: 56px 0; }
.article-body { max-width: 760px; }
.article-body h2 { font-size: 1.4rem; margin: 40px 0 14px; color: var(--clr-primary); }
.article-body h3 { font-size: 1.1rem; margin: 28px 0 10px; color: var(--clr-primary); }
.article-body p { font-size: .96rem; color: var(--clr-text); margin-bottom: 16px; }
.article-body img { width: 100%; border: 1px solid var(--clr-border); margin: 20px 0 8px; }
.photo-caption { font-size: .82rem; color: var(--clr-text-muted); margin-bottom: 24px; }
.summary-list li { position: relative; padding-left: 22px; font-size: .92rem; margin-bottom: 10px; color: var(--clr-text); }
.summary-list li::before { content: '—'; position: absolute; left: 0; color: var(--clr-accent-dark); }
.quote-block { border-left: 3px solid var(--clr-accent); padding: 18px 22px; background: var(--clr-bg-alt); margin: 28px 0; font-size: .94rem; color: var(--clr-text); }
.quote-sign { display: block; margin-top: 10px; font-size: .8rem; color: var(--clr-text-muted); }
.related-links { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 32px; }
.related-links a { font-size: .88rem; font-weight: 700; color: var(--clr-accent-dark); border: 1px solid var(--clr-border); padding: 10px 16px; }

/* gallery caption grid (E-1) */
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 860px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } }
.gallery-item img { width: 100%; height: 180px; object-fit: cover; border: 1px solid var(--clr-border); }
.gallery-caption { font-size: .8rem; color: var(--clr-text-muted); margin-top: 8px; }