/* 바닥코팅비용 — 와인레드/골드, 대각선 컷 히어로 + 비용요소 카드 레이아웃 */

:root {
  --primary: #7A2E2E;
  --primary-dark: #5A1F1F;
  --accent: #F2C14E;
  --ink: #2A1414;
  --paper: #FBF6EE;
  --card-bg: #FFFFFF;
  --line: #E4D6C3;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Noto Sans KR", -apple-system, "Malgun Gothic", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, .btn {
  font-family: "Do Hyeon", "Noto Sans KR", sans-serif;
  font-weight: 400;
  letter-spacing: -0.01em;
}

a { color: inherit; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.section-inner { max-width: 1120px; margin: 0 auto; padding: 56px 20px; }
.table-scroll { overflow-x: auto; }

/* ---------- 헤더 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--primary-dark);
  border-bottom: 3px solid var(--accent);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  color: #fff;
  font-family: "Do Hyeon", sans-serif;
  font-size: 1.15rem;
  text-decoration: none;
  letter-spacing: -0.01em;
}

.menu-toggle {
  width: 44px; height: 44px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 5px;
  background: transparent;
  border: 2px solid var(--accent);
  cursor: pointer;
}
.menu-toggle span { width: 20px; height: 2px; background: var(--accent); display: block; }

#primary-nav {
  display: none;
  flex-direction: column;
  gap: 4px;
  width: 100%;
}
#primary-nav.is-open { display: flex; }
#primary-nav a {
  color: #fff;
  text-decoration: none;
  padding: 12px 8px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
  min-height: 44px;
  display: flex;
  align-items: center;
}

@media (min-width: 768px) {
  .menu-toggle { display: none; }
  #primary-nav {
    display: flex;
    flex-direction: row;
    width: auto;
    gap: 24px;
  }
  #primary-nav a { border-bottom: none; padding: 8px 0; }
}

/* ---------- 버튼 (샤프 코너 + 굵은 테두리) ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 26px;
  font-size: 1.05rem;
  text-decoration: none;
  border: 3px solid var(--ink);
  border-radius: 0;
  cursor: pointer;
  transition: transform 0.15s ease;
}
.btn:hover { transform: translate(-2px, -2px); }
.btn-primary { background: var(--accent); color: var(--ink); border-color: var(--ink); box-shadow: 4px 4px 0 var(--primary-dark); }
.btn-ghost { background: transparent; color: #fff; border-color: #fff; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }

/* ---------- 히어로: 대각선 컷 컬러 블록 ---------- */
.hero {
  position: relative;
  background: var(--primary-dark);
  overflow: hidden;
  padding: 64px 0 96px;
}
.hero-cut {
  position: absolute;
  inset: 0;
  background: var(--primary);
  clip-path: polygon(0 0, 100% 0, 100% 62%, 0 100%);
}
.hero-inner {
  position: relative;
  max-width: 780px;
  margin: 0 auto;
  padding: 0 20px;
  color: #fff;
}
.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  border: 2px solid var(--accent);
  padding: 4px 12px;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: 2.4rem;
  margin: 0 0 18px;
  color: #fff;
}
.hero-sub { font-size: 1.05rem; max-width: 56ch; color: #F3E6D8; }

@media (min-width: 768px) {
  .hero { padding: 96px 0 140px; }
  .hero h1 { font-size: 3.2rem; }
}

/* ---------- 비용 요소 카드 ---------- */
.factors-section { background: var(--paper); }
.factors-section h2 { font-size: 1.7rem; color: var(--primary-dark); margin-bottom: 10px; }
.lead { max-width: 68ch; color: #4A3535; margin-bottom: 32px; }

.factor-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.factor-card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-left: 6px solid var(--primary);
  padding: 24px 22px;
  position: relative;
}
.factor-num {
  display: block;
  font-family: "Do Hyeon", sans-serif;
  font-size: 1.4rem;
  color: var(--accent);
  -webkit-text-stroke: 1px var(--primary-dark);
  margin-bottom: 6px;
}
.factor-card h3 { font-size: 1.15rem; color: var(--primary-dark); margin: 0 0 10px; }
.factor-card p { margin: 0; font-size: 0.98rem; }

@media (min-width: 480px) {
  .factor-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .factor-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- 스플릿 섹션 ---------- */
.split-section { background: #fff; border-top: 1px solid var(--line); }
.split-section.alt { background: var(--paper); }
.split-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 56px 20px;
  display: grid;
  gap: 32px;
}
.split-text h2 { font-size: 1.5rem; color: var(--primary-dark); margin-bottom: 16px; }
.split-text p { margin: 0 0 16px; }

.split-visual {
  min-height: 160px;
  background: var(--primary-dark);
  clip-path: polygon(6% 0, 100% 0, 94% 100%, 0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 20px;
}
.split-visual .tag {
  background: var(--accent);
  color: var(--ink);
  font-family: "Do Hyeon", sans-serif;
  font-size: 0.85rem;
  padding: 6px 14px;
  border: 2px solid var(--ink);
}
.split-visual .tag.alt { background: transparent; color: #fff; border-color: #fff; }
.split-visual .warn-mark {
  font-family: "Do Hyeon", sans-serif;
  font-size: 4rem;
  color: var(--accent);
  border: 4px solid var(--accent);
  width: 90px; height: 90px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}

@media (min-width: 768px) {
  .split-inner { grid-template-columns: 1.3fr 1fr; align-items: center; }
  .split-section.alt .split-inner { grid-template-columns: 1fr 1.3fr; }
  .split-section.alt .split-visual { order: -1; }
}

/* ---------- 비용 관리 방법 ---------- */
.manage-section { background: #fff; border-top: 1px solid var(--line); }
.manage-section h2 { font-size: 1.6rem; color: var(--primary-dark); margin-bottom: 28px; }
.manage-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
.manage-card {
  background: var(--paper);
  border: 2px solid var(--primary);
  padding: 22px;
}
.manage-card h3 { font-size: 1.1rem; color: var(--primary-dark); margin: 0 0 10px; }
.manage-card p { margin: 0; font-size: 0.98rem; }
.manage-note { margin-top: 28px; padding-top: 20px; border-top: 1px dashed var(--line); }
.manage-note a { color: var(--primary); font-weight: 700; text-decoration: underline; }

@media (min-width: 768px) {
  .manage-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ---------- FAQ 아코디언 ---------- */
.faq-section { background: var(--paper); border-top: 1px solid var(--line); }
.faq-section h2 { font-size: 1.6rem; color: var(--primary-dark); margin-bottom: 24px; }
.accordion-item { border: 1px solid var(--line); background: #fff; margin-bottom: 12px; }
.accordion-item h3 { margin: 0; }
.accordion-trigger {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  font-family: "Do Hyeon", sans-serif;
  font-size: 1.02rem;
  color: var(--primary-dark);
  padding: 18px 20px;
  min-height: 44px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.accordion-trigger::after {
  content: "+";
  font-size: 1.3rem;
  color: var(--accent);
  -webkit-text-stroke: 1px var(--primary-dark);
  flex-shrink: 0;
}
.accordion-trigger[aria-expanded="true"]::after { content: "\2212"; }
.accordion-panel { padding: 0 20px 20px; }
.accordion-panel p { margin: 0; }

/* ---------- CTA ---------- */
.cta-section {
  background: var(--primary-dark);
  color: #fff;
  clip-path: polygon(0 6%, 100% 0, 100% 100%, 0 100%);
}
.cta-inner { text-align: center; }
.cta-section h2 { font-size: 1.6rem; margin-bottom: 12px; }
.cta-section p { color: #F3E6D8; margin: 0 auto 8px; max-width: 52ch; }
.cta-section .hero-cta { justify-content: center; }

/* ---------- 푸터 ---------- */
.site-footer {
  background: var(--ink);
  color: #E9DED0;
  padding: 44px 20px 28px;
}
.footer-nav {
  max-width: 1120px;
  margin: 0 auto 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
}
.footer-nav a {
  color: #E9DED0;
  text-decoration: none;
  font-size: 0.92rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.footer-nav a:hover { color: var(--accent); }
.site-footer address { max-width: 1120px; margin: 0 auto 16px; font-style: normal; font-size: 0.9rem; line-height: 1.8; }
.site-footer address a { color: var(--accent); text-decoration: none; }
.site-footer p { max-width: 1120px; margin: 0 auto; font-size: 0.82rem; color: #A8988A; }

@media (min-width: 1280px) {
  .section-inner, .split-inner { padding-left: 0; padding-right: 0; }
}

/* 현장 사진 */
.site-photo-section { max-width: 1000px; margin: 0 auto; padding: 40px 20px; }
.site-photo-section h2 { color: var(--primary); margin: 0 0 18px; }
.site-photo-grid { display: grid; grid-template-columns: 1fr; gap: 12px; }
.site-photo-grid picture { display: block; aspect-ratio: 4/3; overflow: hidden; border: 2px solid var(--primary); }
.site-photo-grid img { width: 100%; height: 100%; object-fit: cover; }
@media (min-width: 640px) { .site-photo-grid { grid-template-columns: repeat(2, 1fr); } }