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

:root {
  /* 테마 컬러 (트렌디한 딥 청록 - Teal & 소프트 웜 그레이) */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa; /* 밝은 소프트 그레이 */
  --bg-tertiary: #f1f4f3; /* 살짝 청록빛이 섞인 밝은 웜그레이 */
  
  /* 텍스트 컬러 */
  --text-primary: #0f172a; /* 딥 슬레이트 블랙 */
  --text-secondary: #475569; /* 슬레이트 그레이 */
  --text-muted: #94a3b8;
  
  /* 네이버 그린 (#2db400) 기반 디자인 시스템 */
  --accent-color: #2db400; /* 활기찬 네이버 그린 */
  --accent-secondary: #1f8b00; /* 딥 네이버 그린 */
  
  /* 액센트 그라데이션 및 네온 효과 */
  --accent-gradient: linear-gradient(135deg, #2db400 0%, #1f8b00 100%);
  --accent-glow: 0 4px 15px rgba(45, 180, 0, 0.2);
  
  /* 시스템 상태 */
  --error: #ef4444;
  --success: #10b981;
  
  /* 폰트 정의 */
  --font-sans: 'Outfit', 'Noto Sans KR', sans-serif;
  
  /* 레이아웃 & 애니메이션 */
  --max-width: 1200px;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-height: 80px;
}

/* ==========================================
   CSS Reset
   ========================================== */

* {
  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: 1.6;
  overflow-x: hidden;
}

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
   ========================================== */

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* 버튼 컴포넌트 (트렌디 틸 스타일) */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-gradient);
  color: #ffffff;
  font-weight: 600;
  padding: 12px 30px;
  border-radius: 50px;
  box-shadow: var(--accent-glow);
  transition: var(--transition-smooth);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(13, 148, 136, 0.4);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(13, 148, 136, 0.05);
  color: var(--accent-color);
  font-weight: 500;
  padding: 12px 30px;
  border-radius: 50px;
  border: 1px solid rgba(13, 148, 136, 0.15);
  transition: var(--transition-smooth);
  cursor: pointer;
}

.btn-secondary:hover {
  background: rgba(13, 148, 136, 0.1);
  border-color: var(--accent-color);
  transform: translateY(-3px);
}

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

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(13, 148, 136, 0.06);
  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: 38px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0px 2px 4px rgba(0, 0, 0, 0.05));
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
}

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

.nav-btn {
  background: var(--accent-gradient);
  color: #fff;
  padding: 8px 20px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--accent-glow);
}

.nav-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(13, 148, 136, 0.35);
}

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

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

.footer {
  background-color: #1e1e1e; /* 짙은 검정 회색으로 개편 */
  color: rgba(255, 255, 255, 0.7);
  padding: 50px 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: 24px;
  text-align: left;
}

.footer-business-info {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
}

.footer-business-info p {
  margin-bottom: 4px;
}

.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, 0.3);
}

.footer-copyright-area {
  margin-top: 4px;
}

.copyright {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.85rem;
}

.footer-partnership-info {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.8;
}

.footer-partnership-info p {
  margin-bottom: 4px;
}

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

.partnership-notice {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

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

@media (max-width: 768px) {
  .header-container {
    padding: 0 16px;
  }
  
  .nav-menu {
    display: none;
  }
  
  .footer-container {
    gap: 20px;
  }

  .footer-business-info .divider {
    display: none;
  }
  
  .footer-business-info span {
    display: block;
    margin-bottom: 2px;
  }
}