:root {
  --plate: #1B2A24; --plate-2: #223A30;
  --surface: #F6F3EA; --surface-2: #FFFFFF; --surface-3: #EBE4D2;
  --ink: #23322B; --ink-2: #1A2621;
  --accent: #C6672E; --accent-2: #5C8C74; --accent-dim: rgba(198, 103, 46, 0.14);
  --muted: #6B6A5C;
  --line: rgba(35, 50, 43, 0.13);
  --heading-font: 'Gothic A1', 'Noto Sans KR', sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--surface); color: var(--ink); font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Malgun Gothic', sans-serif; font-size: 16px; line-height: 1.75; }
a { color: inherit; }
p { color: var(--ink); margin: 0 0 18px; }
h1, h2 { font-family: var(--heading-font); font-weight: 800; line-height: 1.32; color: var(--ink-2); }
h1 { font-size: clamp(2rem, 6.6vw, 3.05rem); margin: 8px 0 16px; }
h2 { font-size: clamp(1.42rem, 4.2vw, 1.9rem); margin: 0 0 16px; color: var(--accent-2); }
h3 { font-size: 1.02rem; font-weight: 700; margin: 0; color: var(--ink-2); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.section-inner { max-width: 1120px; margin: 0 auto; padding: 60px 20px; }

/* ---------- 헤더 ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(27, 42, 36, 0.95); border-bottom: 1px solid rgba(255,255,255,0.08); backdrop-filter: blur(6px); }
.header-inner { max-width: 1280px; margin: 0 auto; padding: 15px 20px; display: flex; align-items: center; justify-content: space-between; position: relative; }
.logo { font-weight: 800; font-size: 1.1rem; text-decoration: none; color: #F6F3EA; letter-spacing: 0.01em; }
.menu-toggle { background: var(--plate-2); border: 2px solid var(--accent-2); border-radius: 10px; width: 44px; height: 44px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px; cursor: pointer; }
.menu-toggle span { width: 20px; height: 2px; background: var(--accent-2); display: block; border-radius: 2px; }
#primary-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--plate); border-top: 1px solid rgba(255,255,255,0.08); flex-direction: column; padding: 8px 20px 16px; box-shadow: 0 14px 26px rgba(0,0,0,0.28); }
#primary-nav.is-open { display: flex; }
#primary-nav a { display: flex; align-items: center; min-height: 44px; text-decoration: none; color: #E7E3D4; border-bottom: 1px solid rgba(255,255,255,0.08); }

/* ---------- 버튼 ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 14px 28px; border: none; text-decoration: none; font-weight: 800; font-size: 0.96rem; border-radius: 999px; }
.btn-primary { background: linear-gradient(120deg, var(--accent), #A34F1F); color: #fff; box-shadow: 0 12px 24px rgba(198,103,46,0.32); }
.btn-ghost { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,0.5); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 24px; }

/* ---------- 히어로: 신도시 단지 실루엣 · 테라스 창 패턴 ---------- */
.hero { position: relative; background: linear-gradient(185deg, var(--plate), var(--plate-2) 88%); overflow: hidden; }
.terrace-grid { position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(92,140,116,0.22) 0 18px, transparent 18px 46px),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.05) 0 14px, transparent 14px 40px),
    radial-gradient(circle at 85% 8%, rgba(198,103,46,0.32), transparent 42%),
    radial-gradient(circle at 12% 90%, rgba(92,140,116,0.28), transparent 46%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,0.9), transparent 92%);
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.9), transparent 92%);
}
.hero-inner { position: relative; z-index: 1; padding: 48px 20px 56px; max-width: 720px; margin: 0 auto; text-align: left; }
.eyebrow { font-size: 0.78rem; letter-spacing: 0.13em; color: var(--accent); margin: 0 0 8px; font-weight: 800; text-transform: uppercase; }
.hero h1 { color: #fff; }
.hero-sub { color: #CFD6CD; font-size: 1.02rem; margin-bottom: 0; }

/* ---------- 본문 ---------- */
.content-section { border-top: 1px solid var(--line); }
.content-grid { display: block; }
.content-main h2:not(:first-child) { margin-top: 42px; }
.content-main a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.content-side { margin-top: 42px; }
.fact-box { background: var(--surface-2); border: 1px solid var(--line); border-radius: 16px; padding: 30px 26px; box-shadow: 0 14px 32px rgba(26,38,33,0.07); position: relative; }
.fact-box::before { content: ''; position: absolute; top: 0; left: 26px; right: 26px; height: 4px; border-radius: 0 0 4px 4px; background: linear-gradient(90deg, var(--accent-2), var(--accent)); }
.fact-box h2 { font-size: 1.35rem; margin-bottom: 18px; margin-top: 6px; }
.fact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 15px; counter-reset: fact; }
.fact-list li { padding-left: 30px; position: relative; font-size: 0.95rem; color: var(--ink); counter-increment: fact; }
.fact-list li::before { content: counter(fact); position: absolute; left: 0; top: -1px; width: 20px; height: 20px; border-radius: 50%; background: var(--accent-dim); color: var(--accent); font-size: 0.72rem; font-weight: 800; display: flex; align-items: center; justify-content: center; }

/* ---------- 관련 페이지 ---------- */
.related-section { border-top: 1px solid var(--line); }
.related-section ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 12px; }
.related-section li { margin: 0; }
.related-section a {
  display: inline-flex; align-items: center; min-height: 40px;
  padding: 10px 22px; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--line);
  color: var(--accent); text-decoration: none; font-weight: 800; font-size: 0.92rem;
  box-shadow: 0 8px 18px rgba(26,38,33,0.05);
  transition: background 0.15s ease, transform 0.15s ease;
}
.related-section a:hover { background: var(--accent-dim); transform: translateY(-2px); }

/* ---------- FAQ ---------- */
.faq-section { background: var(--surface-3); border-top: 1px solid var(--line); }
.accordion-item { border-bottom: 1px solid var(--line); }
.accordion-trigger { width: 100%; text-align: left; min-height: 44px; background: none; border: none; color: var(--ink); font-size: 1rem; font-weight: 800; padding: 17px 4px; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 12px; font-family: inherit; }
.accordion-trigger::after { content: '\25BE'; color: var(--accent); font-size: 1rem; transition: transform 0.2s ease; }
.accordion-trigger[aria-expanded="true"]::after { transform: rotate(180deg); }
.accordion-panel { padding: 0 4px 20px; }

/* ---------- CTA ---------- */
.cta-section { background: linear-gradient(120deg, var(--plate), #2E2013); border-top: 1px solid var(--line); }
.cta-section h2 { color: #fff; }
.cta-section p { color: #D9DED4; }

/* ---------- 푸터 ---------- */
.site-footer { background: var(--plate); padding: 16px 20px; }
address { max-width: 1120px; margin: 0 auto; font-style: normal; color: #9CA79E; font-size: 0.88rem; line-height: 1.8; }
address a { color: var(--accent); }
/* ---------- 현장 사진 ---------- */
.site-photo-section { max-width: 1000px; margin: 0 auto; padding: 42px 20px; text-align: center; }
.site-photo-section h2 { color: var(--ink-2); }
.site-photo-grid { display: grid; grid-template-columns: 1fr; gap: 14px; justify-content: center; max-width: 760px; margin: 0 auto; }
.site-photo-grid picture { display: block; aspect-ratio: 4/3; overflow: hidden; border-radius: 14px; border: 1px solid var(--line); }
.site-photo-grid img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- 반응형 ---------- */
@media (min-width: 640px) { .site-photo-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 768px) {
  #primary-nav { position: static; display: flex !important; flex-direction: row; background: none; border: none; padding: 0; gap: 22px; box-shadow: none; }
  #primary-nav a { border-bottom: none; min-height: auto; color: #E7E3D4; }
  .menu-toggle { display: none; }
}
@media (min-width: 1024px) {
  .content-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 50px; align-items: start; }
  .content-side { margin-top: 0; position: sticky; top: 90px; }
}