/* 전역 스타일 */
:root {
  --main-dark: hsl(203.48deg 51.11% 8.82%);
  --accent-blue: hsl(203.94deg 90.61% 35%); /* 명도 낮춤 (접근성 개선) */
  --text-white: #FFFFFF;
  --primary-color: #0d6efd;
  --secondary-color: #6c757d;
  --dark-color: #212529;
  --light-color: #f8f9fa;
}

html, body {
  font-family: 'Pretendard', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Malgun Gothic', '맑은 고딕', sans-serif;
  line-height: 1.6;
  background-color: var(--main-dark);
  color: var(--text-white);
  overflow-x: hidden; /* 가로 스크롤 방지 */
  width: 100%;
  max-width: 100%;
}

/* 페이지 전환 애니메이션 */
body {
  opacity: 0;
  transition: opacity 0.5s ease-in-out;
}

body.page-loaded {
  opacity: 1;
}

body.page-transitioning {
  opacity: 0;
}


/* 네비게이션 */
.navbar-custom {
  background-color: var(--main-dark) !important;
  transition: all 0.3s ease;
}

/* 스크롤 시 네비게이션 효과 */
.navbar-custom.scrolled {
  background-color: rgba(14, 29, 52, 0.95) !important;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
}

.navbar-logo {
  height: 60px;
  width: auto;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.navbar-custom.scrolled .navbar-logo {
  transform: scale(0.9);
}

.nav-item {
  margin-left: 1.5rem;
  margin-right: 1.5rem;
}

.nav-link {
  transition: color 0.3s ease, transform 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--accent-blue) !important;
  transform: translateY(-2px);
}

/* 활성 메뉴 항목 */
.nav-link.active {
  color: var(--accent-blue) !important;
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-blue);
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

/* 문의하기 버튼 스타일 */
.nav-cta-btn {
  background: linear-gradient(135deg, var(--accent-blue), #667eea) !important;
  color: white !important;
  padding: 0.6rem 1.5rem !important;
  border-radius: 50px;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(13, 110, 253, 0.3);
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.nav-cta-btn:hover {
  transform: translateY(-3px) !important;
  box-shadow: 0 6px 20px rgba(13, 110, 253, 0.5);
  background: linear-gradient(135deg, #667eea, var(--accent-blue)) !important;
  color: white !important;
}

.nav-cta-btn i {
  font-size: 0.9rem;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

/* ========================================
   Hero Section - 비디오 배경 랜딩페이지
   ======================================== */

.hero-section {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 비디오 배경 */
.hero-video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  width: auto;
  height: auto;
  transform: translate(-50%, -50%);
  object-fit: cover;
  z-index: 1;
}

/* 오버레이 */
.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--main-dark);
  opacity: 0.65;
  z-index: 2;
}

/* 콘텐츠 컨테이너 */
.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  color: var(--text-white);
  padding: 0 20px;
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100%;
}

/* 텍스트 영역 (위로 이동) */
.hero-text-area {
  transform: translateY(-100px);
  margin-bottom: 100px;
}

/* 헤드라인 */
.hero-headline {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1.5rem;
  color: var(--text-white);
  animation: fadeInUp 1s ease;
}

.hero-highlight {
  color: var(--accent-blue);
  display: inline-block;
}

/* 서브텍스트 */
.hero-subtext {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  font-weight: 400;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 2.5rem;
  animation: fadeInUp 1.2s ease;
}

/* 버튼 컨테이너 */
.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  animation: fadeInUp 1.4s ease;
}

/* Primary Solid 버튼 */
.btn-primary-solid {
  display: inline-block;
  padding: 1rem 2rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-white);
  background-color: var(--accent-blue);
  border: none;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(13, 110, 253, 0.3);
}

.btn-primary-solid:hover {
  background-color: hsl(203.94deg 90.61% 35%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(13, 110, 253, 0.4);
  color: var(--text-white);
}

.btn-primary-solid:active {
  transform: translateY(0);
}

/* Outline Ghost 버튼 */
.btn-outline-ghost {
  display: inline-block;
  padding: 1rem 2rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-white);
  background-color: transparent;
  border: 2px solid var(--text-white);
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.3s ease;
}

.btn-outline-ghost:hover {
  background-color: var(--text-white);
  color: var(--main-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
}

.btn-outline-ghost:active {
  transform: translateY(0);
}

/* 반응형 - 태블릿 */
@media (max-width: 768px) {
  .hero-section {
    min-height: 500px;
  }
  
  .hero-text-area {
    transform: translateY(-50px);
    margin-bottom: 50px;
  }
  
  .hero-headline {
    font-size: clamp(1.75rem, 6vw, 2.5rem);
    margin-bottom: 1.25rem;
  }
  
  .hero-subtext {
    font-size: clamp(0.95rem, 3vw, 1.1rem);
    margin-bottom: 2rem;
  }
  
  .hero-buttons {
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .btn-primary-solid,
  .btn-outline-ghost {
    width: 100%;
    max-width: 300px;
    padding: 0.9rem 1.5rem;
    font-size: 1rem;
  }
}

/* 반응형 - 모바일 */
@media (max-width: 480px) {
  .hero-section {
    min-height: 450px;
  }
  
  .hero-content {
    padding: 0 15px;
  }
  
  .hero-text-area {
    transform: translateY(20px);
    margin-bottom: 20px;
  }
  
  .hero-headline {
    font-size: 1.75rem;
    margin-bottom: 1rem;
  }
  
  .hero-subtext {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
  }
  
  .btn-primary-solid,
  .btn-outline-ghost {
    padding: 0.85rem 1.25rem;
    font-size: 0.95rem;
  }
}

/* ========================================
   기타 섹션 스타일
   ======================================== */

/* 카드 스타일 */
.card {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

/* Features Section */
.features-section {
  background-color: #fff;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  color: white;
}

.cta-section h2,
.cta-section p {
  color: white;
}

/* Footer */
footer {
  margin-top: auto;
}

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

.social-links a {
  transition: transform 0.3s ease;
  display: inline-block;
}

.social-links a:hover {
  transform: scale(1.2);
}

/* 폼 스타일 */
.form-control:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* 애니메이션 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 모바일 네비게이션 여백 조정 및 로고 크기 최적화 */
@media (max-width: 991px) {
  .navbar-custom .container {
    padding-left: 20px;
    padding-right: 20px;
  }
  
  .navbar-logo {
    height: 40px; /* 모바일에서 로고 크기 축소 */
    max-width: 180px; /* 로고가 너무 커서 버튼을 밀어내는 것 방지 */
  }
}

/* 푸터 스타일 */
.footer-custom {
  background-color: #0a1628; /* --main-dark보다 약간 더 어둡게 */
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-links li a:hover {
  color: var(--accent-blue) !important;
  transform: translateX(5px);
}

.transition-link {
  display: inline-block;
  transition: all 0.3s ease;
}

.social-btn {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  color: #fff;
  text-decoration: none;
  transition: all 0.3s ease;
  line-height: 1 !important;
  padding: 0 !important;
  margin: 0;
}

.social-btn i {
  margin: 0 !important;
  padding: 0 !important;
  font-size: 1.2rem;
  vertical-align: middle;
  display: inline-block;
}

.social-btn:hover {
  background-color: var(--accent-blue);
  color: #fff;
  transform: translateY(-3px);
}