:root{--build-id:"278ea86c-6942-478b-a652-2c2c7a63b009";}
/* 게수루나63 조명 사이트 - 전용 스타일시트 */

/* ========== 리셋 및 기본 설정 ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", "Malgun Gothic", "Noto Sans KR", -apple-system, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  letter-spacing: 0em;
  color: var(--text);
  background-color: var(--bg);
}

/* ========== 색상 변수 (C09 - 그린) ========== */
:root {
  --primary: #10b981;
  --bg: #f0fdf4;
  --text: #064e3b;
  --accent: #34d399;
  --heading: var(--text);
  --link: var(--text);
}

/* ========== 접근성 ========== */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: #000;
  color: #fff;
  padding: 8px 16px;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

a:focus-visible,
input:focus-visible,
label:focus-visible,
button:focus-visible {
  outline: 3px solid #0066cc;
  outline-offset: 2px;
}

/* ========== 헤더 및 네비게이션 (N05) ========== */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(240, 253, 244, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid rgba(16, 185, 129, 0.1);
}

.header-container {
  max-width: 1450px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.menu-checkbox {
  display: none;
}

.menu-toggle {
  display: none;
  font-size: 1.75rem;
  cursor: pointer;
  color: var(--text);
  background: none;
  border: none;
  padding: 0.5rem;
}

nav {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 2.5rem;
  align-items: center;
}

nav a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
  position: relative;
}

nav a:hover {
  color: var(--primary);
}

nav a[aria-current="page"] {
  color: var(--primary);
  font-weight: 700;
}

nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
}

/* ========== 메인 콘텐츠 ========== */
main {
  padding-top: 80px;
}

/* ========== 섹션 스타일 (S09) ========== */
section {
  padding: 6.5rem 0;
}

.container {
  max-width: 1450px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ========== 타이포그래피 (H05) ========== */
h1 {
  font-size: clamp(2.5rem, 5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--heading);
  margin-bottom: 1.5rem;
}

h2 {
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--heading);
  margin-bottom: 1.25rem;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0;
  color: var(--heading);
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1rem;
}

/* ========== 버튼 스타일 (B05 - 사각형) ========== */
.btn {
  display: inline-block;
  border-radius: 0;
  padding: 1.25rem 3rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-secondary:hover {
  background: var(--primary);
  color: #fff;
}

/* ========== 카드 스타일 (K05) ========== */
.card {
  border: 2px solid #e5e7eb;
  border-radius: 0.5rem;
  padding: 2rem;
  background: #fff;
  transition: all 0.3s;
}

.card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
}

/* ========== 히어로 섹션 (L23 - 소프트 히어로) ========== */
.hero {
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
  padding: 8rem 0 6.5rem;
  text-align: center;
}

.hero h1 {
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text);
  max-width: 700px;
  margin: 0 auto 2.5rem;
  opacity: 0.9;
}

.hero-buttons {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========== 리스트 스타일 ========== */
.feature-list {
  display: grid;
  gap: 4.5rem;
  margin: 4.5rem 0;
}

.feature-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2rem;
  align-items: start;
}

.feature-icon {
  font-size: 3rem;
  color: var(--primary);
}

.feature-content h3 {
  margin-bottom: 1rem;
}

/* ========== 비교 테이블 (CS05) ========== */
.comparison-table {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.comparison-card {
  border: 2px solid #e5e7eb;
  border-radius: 0.5rem;
  padding: 2rem;
  background: #fff;
}

.comparison-card h3 {
  color: var(--primary);
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--primary);
}

.comparison-card ul {
  list-style: none;
  padding: 0;
}

.comparison-card li {
  padding: 0.75rem 0;
  border-bottom: 1px solid #f3f4f6;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.comparison-card li:last-child {
  border-bottom: none;
}

.comparison-card li::before {
  content: "✓";
  color: var(--primary);
  font-weight: 700;
  font-size: 1.25rem;
}

/* ========== 그리드 레이아웃 ========== */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

/* ========== 푸터 ========== */
footer {
  background: var(--text);
  color: #fff;
  padding: 3rem 0 2rem;
  margin-top: 6.5rem;
}

.footer-content {
  max-width: 1450px;
  margin: 0 auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  color: var(--accent);
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  line-height: 1.8;
}

.footer-section a:hover {
  color: var(--accent);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-bottom {
  max-width: 1450px;
  margin: 0 auto;
  padding: 2rem 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

/* ========== 연락처 정보 ========== */
.contact-info {
  display: grid;
  gap: 2rem;
  margin: 3rem 0;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem;
  background: #fff;
  border: 2px solid #e5e7eb;
  border-radius: 0.5rem;
}

.contact-icon {
  font-size: 2rem;
  color: var(--primary);
}

.contact-details h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.contact-details p {
  margin: 0;
  color: var(--text);
}

/* ========== 반응형 (모바일) ========== */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  nav {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: var(--bg);
    flex-direction: column;
    justify-content: flex-start;
    padding: 2rem;
    transition: left 0.3s;
    border-top: 1px solid rgba(16, 185, 129, 0.1);
  }

  nav ul {
    flex-direction: column;
    gap: 1.5rem;
    width: 100%;
  }

  nav a {
    display: block;
    padding: 1rem;
    font-size: 1.125rem;
  }

  .menu-checkbox:checked ~ nav {
    left: 0;
  }

  .hero {
    padding: 5rem 0 4rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    text-align: center;
  }

  section {
    padding: 4rem 0;
  }

  .feature-item {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .comparison-table {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* ========== Privacy/Terms 문서 스타일 ========== */
.doc-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 4rem 2rem;
  text-align: center;
}

.doc-container h1 {
  margin-bottom: 2rem;
}

.doc-container p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.doc-container a {
  color: var(--primary);
  text-decoration: underline;
}

.doc-container a:hover {
  color: var(--accent);
}