:root{--build-id:"92bf1f89-ed3e-46e2-9418-3eb1e67f7d30";}
/* 네우모다38 - 축구공 전문 사이트 */
/* 변수: L13, C10, T25, B06, N09, K06, S01, H06, F5, CS06 */

:root {
  /* C10: 그린 계열 색상 */
  --primary: #059669;
  --bg: #ecfdf5;
  --text: #065f46;
  --accent: #10b981;
  --heading: #065f46;
  --link: #065f46;
  --border: #d1d5db;
  --card-bg: #ffffff;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* F5: Android Core 폰트 스택 */
body {
  font-family: Roboto, "Noto Sans KR", "Malgun Gothic", "Segoe UI", -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);
}

/* H06: 헤딩 스타일 (clamp로 반응형) */
h1 {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  text-transform: capitalize;
  color: var(--heading);
  margin-bottom: 1.5rem;
}

h2 {
  font-size: clamp(1.875rem, 4vw, 2.8125rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--heading);
  margin-bottom: 1.25rem;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--heading);
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--link);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

/* 접근성: Skip Link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary);
  color: white;
  padding: 0.5rem 1rem;
  text-decoration: none;
  z-index: 100;
}

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

/* S01: 섹션 여백 시스템 */
section {
  padding: 5rem 0;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* N09: 네비게이션 - 상단 투명 + 좌측 로고 + 중앙 검색 + 우측 메뉴 */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(236, 253, 245, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid rgba(5, 150, 105, 0.1);
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  max-width: 1280px;
  margin: 0 auto;
  gap: 2rem;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  white-space: nowrap;
}

.nav-search {
  flex: 1;
  max-width: 400px;
  display: none;
}

.nav-search input {
  width: 100%;
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  font-size: 0.875rem;
}

.nav-menu {
  display: none;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-menu li a {
  font-weight: 600;
  transition: color 0.3s ease;
}

.nav-menu li a:hover,
.nav-menu li a[aria-current="page"] {
  color: var(--primary);
}

.hamburger {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.hamburger span {
  display: block;
  width: 1.5rem;
  height: 2px;
  background: var(--text);
  transition: all 0.3s ease;
}

/* 모바일 메뉴 */
.mobile-menu {
  display: none;
  position: fixed;
  top: 4rem;
  left: 0;
  right: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  z-index: 999;
}

.mobile-menu.active {
  display: block;
}

.mobile-menu ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-menu li a {
  display: block;
  padding: 0.75rem 0;
  font-weight: 600;
  border-bottom: 1px solid rgba(5, 150, 105, 0.1);
}

/* L13: 비대칭 히어로 */
.hero {
  margin-top: 4rem;
  padding: 6rem 0 5rem;
  background: linear-gradient(135deg, var(--bg) 0%, #d1fae5 100%);
}

.hero-content {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

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

.hero-text p {
  font-size: 1.125rem;
  line-height: 1.75;
  margin-bottom: 2rem;
  color: var(--text);
}

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

/* B06: 버튼 스타일 - 사각형, 3px 테두리 */
.btn {
  display: inline-block;
  border-radius: 0;
  padding: 1rem 2.5rem;
  font-weight: 600;
  border: 3px solid var(--primary);
  background: var(--primary);
  color: white;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn:hover {
  background: transparent;
  color: var(--primary);
}

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

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

/* K06: 카드 스타일 - 1px 테두리, 1rem 둥근 모서리 */
.card {
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.5rem;
  background: var(--card-bg);
  transition: all 0.3s ease;
}

.card:hover {
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.1);
}

.card h3 {
  margin-bottom: 1rem;
  color: var(--primary);
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  display: block;
}

/* 3열 카드 그리드 */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3rem;
  margin-top: 3rem;
}

/* 타임라인 */
.timeline {
  position: relative;
  padding-left: 2rem;
  margin-top: 3rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--primary);
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
  padding-left: 2rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -2.375rem;
  top: 0.5rem;
  width: 1rem;
  height: 1rem;
  background: var(--primary);
  border-radius: 50%;
  border: 3px solid var(--bg);
}

.timeline-item h3 {
  margin-bottom: 0.5rem;
}

/* 사이드바 CTA */
.sidebar-cta {
  position: sticky;
  top: 6rem;
  background: var(--card-bg);
  border: 2px solid var(--primary);
  border-radius: 1rem;
  padding: 2rem;
  text-align: center;
}

.sidebar-cta h3 {
  margin-bottom: 1rem;
  color: var(--primary);
}

.sidebar-cta p {
  margin-bottom: 1.5rem;
}

/* 2열 레이아웃 (메인 + 사이드바) */
.content-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: 3rem;
  align-items: start;
}

/* 리스트 스타일 */
.content-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.content-list li {
  padding-left: 2rem;
  position: relative;
}

.content-list li::before {
  content: "⚽";
  position: absolute;
  left: 0;
  font-size: 1.25rem;
}

/* 푸터 */
footer {
  background: var(--text);
  color: white;
  padding: 3rem 0 2rem;
  margin-top: 5rem;
}

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

.footer-section h3 {
  color: white;
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.footer-section ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

/* 반응형 */
@media (min-width: 768px) {
  .nav-search {
    display: block;
  }

  .nav-menu {
    display: flex;
  }

  .hamburger {
    display: none;
  }
}

@media (max-width: 1024px) {
  .content-with-sidebar {
    grid-template-columns: 1fr;
  }

  .sidebar-cta {
    position: static;
  }
}

@media (max-width: 768px) {
  .hero-content {
    grid-template-columns: 1fr;
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }

  section {
    padding: 3rem 0;
  }
}

/* 포커스 스타일 (접근성) */
a:focus,
button:focus,
input:focus {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

/* 유니코드 심볼 */
.symbol {
  font-style: normal;
}