/* ==========================================
   Emocar Global Design System & Variables
   ========================================== */

:root {
  /* 테마 컬러 (따뜻한 옐로우 & 신뢰감을 주는 웜 차콜) */
  --bg-primary: #fdfdfa; /* 부드러운 아이보리 웜 화이트 */
  --bg-secondary: #f6f5f0; /* 따뜻한 파스텔 웜 그레이 */
  --bg-tertiary: #ebe9e0; /* 연한 샌드 브라운 파스텔 */
  
  /* 텍스트 컬러 */
  --text-primary: #1e1e1d; /* 부드러운 차콜 블랙 */
  --text-secondary: #4a4a47; /* 차분한 딥 그레이 */
  --text-muted: #8c8c87; /* 부드러운 그레이 */
  
  /* 이모카 메인 옐로우 (#f9e400) 기반 디자인 시스템 */
  --accent-color: #f9e400; /* 활기찬 옐로우 */
  --accent-secondary: #e5d100; /* 딥 옐로우 */
  --accent-light: #fffde6; /* 아주 밝은 파스텔 옐로우 */
  --text-on-accent: #1e1e1d; /* 옐로우 배경 위에 들어가는 어두운 텍스트 */
  
  /* 액센트 그라데이션 및 네온 효과 */
  --accent-gradient: linear-gradient(135deg, #f9e400 0%, #e5d100 100%);
  --accent-glow: 0 8px 24px rgba(249, 228, 0, 0.25);
  
  /* 시스템 상태 */
  --error: #e04f4f;
  --success: #3c9b74;
  
  /* 폰트 정의 */
  --font-sans: 'Outfit', 'Noto Sans KR', sans-serif;
  
  /* 레이아웃 & 애니메이션 */
  --max-width: 1200px;
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --header-height: 90px; /* 헤더 높이 80px -> 90px 확대 */
}

/* ==========================================
   CSS Reset & Base
   ========================================== */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.7;
  overflow-x: hidden;
  letter-spacing: -0.02em;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-smooth);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

/* ==========================================
   공통 타이포그래피 & 유틸리티
   ========================================== */

.highlight-text {
  position: relative;
  display: inline-block;
  font-weight: 700;
}

.highlight-text::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  width: 100%;
  height: 8px;
  background-color: rgba(249, 228, 0, 0.5);
  z-index: -1;
  border-radius: 4px;
}

/* 버튼 컴포넌트 */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-gradient);
  color: var(--text-on-accent);
  font-weight: 700;
  padding: 14px 32px;
  border-radius: 50px;
  box-shadow: var(--accent-glow);
  transition: var(--transition-smooth);
  border: none;
  cursor: pointer;
  letter-spacing: -0.01em;
}

.btn-primary:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(249, 228, 0, 0.35);
}

.btn-primary:active {
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  color: var(--text-primary);
  font-weight: 600;
  padding: 14px 32px;
  border-radius: 50px;
  border: 1px solid var(--bg-tertiary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
  transition: var(--transition-smooth);
  cursor: pointer;
}

.btn-secondary:hover {
  background: var(--bg-secondary);
  border-color: var(--text-muted);
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06);
}

/* ==========================================
   글로벌 레이아웃 (Header)
   ========================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.85); /* 웜 화이트 반투명 복원 */
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: var(--transition-smooth);
}

.header-container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 75px; /* 이모카 로고 높이 확대 (60px -> 75px) */
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0px 2px 4px rgba(0, 0, 0, 0.02));
  transition: var(--transition-smooth);
}

.logo-img:hover {
  transform: scale(1.02);
}

.logo-text {
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: 1.6rem;
  color: var(--text-primary);
  letter-spacing: -0.03em;
}

.logo-text span {
  color: #e5d100;
  position: relative;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary); /* 어두운 그레이 복원 */
  position: relative;
  padding: 6px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--text-primary); /* 어두운 차콜 밑줄 복원 */
  transition: var(--transition-smooth);
  transform: translateX(-50%);
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-btn {
  background: var(--text-primary);
  color: #ffffff;
  padding: 10px 24px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: var(--transition-smooth);
}

.nav-btn:hover {
  background: var(--accent-color);
  color: var(--text-on-accent);
  transform: translateY(-2px);
  box-shadow: var(--accent-glow);
}

.main-content {
  margin-top: var(--header-height);
  min-height: calc(100vh - var(--header-height));
}

/* ==========================================
   글로벌 레이아웃 (Footer)
   ========================================== */

.footer {
  background-color: #1a1a19; /* 매우 어두운 웜 차콜 */
  color: rgba(255, 255, 255, 0.6);
  padding: 60px 24px;
  font-size: 0.85rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 28px;
  text-align: left;
}

.footer-logo-text {
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: 1.4rem;
  color: #ffffff;
  margin-bottom: 8px;
}

.footer-logo-text span {
  color: var(--accent-color);
}

.footer-business-info {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.9;
}

.footer-business-info p {
  margin-bottom: 6px;
}

.footer-business-info p:last-child {
  margin-bottom: 0;
}

.footer-business-info span {
  display: inline-block;
}

.footer-business-info strong {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
}

.footer-business-info .divider {
  margin: 0 10px;
  color: rgba(255, 255, 255, 0.2);
}

.footer-copyright-area {
  margin-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  padding-top: 20px;
}

.copyright {
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.8rem;
}

.footer-partnership-info {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.8;
}

.partnership-notice {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
  margin-top: 4px;
}

/* ==========================================
   반응형 브레이크포인트
   ========================================== */

@media (max-width: 768px) {
  .header {
    height: 80px;
  }
  
  --header-height: 80px;
  
  .header-container {
    padding: 0 20px;
  }
  
  .logo-img {
    height: 65px; /* 모바일 환경 로고 높이 확대 (50px -> 65px) */
  }
  
  .nav-menu {
    display: none;
  }
  
  .footer {
    padding: 40px 20px;
  }
  
  .footer-container {
    gap: 20px;
  }

  .footer-business-info .divider {
    display: none;
  }
  
  .footer-business-info span {
    display: block;
    margin-bottom: 4px;
  }
}