@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css");

/* -------------------------------------------
   CSS 변수 설정 (SK V1 브랜드 주요 컬러)
------------------------------------------- */
:root {
  --primary-color: #E2000F; /* SK V1 포인트 레드 */
  --secondary-color: #333333; /* 다크 그레이 */
  --bg-color: #FAFAFA; /* 밝은 배경 */
  --text-dark: #1A1A1A;
  --text-gray: #666666;
  --header-bg: rgba(255, 255, 255, 0.95);
}

/* -------------------------------------------
   기본 스타일
------------------------------------------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Pretendard', sans-serif;
  letter-spacing: -0.5px;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-color);
  color: var(--text-dark);
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

.text-red {
  color: var(--primary-color);
}

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

/* -------------------------------------------
   헤더 (Header)
------------------------------------------- */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--header-bg);
  backdrop-filter: blur(10px);
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  height: 80px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}

.logo h1 {
  font-size: 24px;
  font-weight: 800;
  color: var(--secondary-color);
}

/* 내비게이션바 (GNB) */
.gnb ul {
  display: flex;
  gap: 30px;
}

.gnb a {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-gray);
  padding: 10px 0;
  position: relative;
  transition: color 0.3s;
}

.gnb a:hover, .gnb a.active {
  color: var(--primary-color);
}

/* 밑줄 애니메이션 */
.gnb a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background-color: var(--primary-color);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.gnb a:hover::after, .gnb a.active::after {
  width: 100%;
}

/* 상단 전화 연결 버튼 */
.contact-number .call-btn-header {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--primary-color);
  color: #fff;
  padding: 10px 20px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 16px;
  transition: transform 0.3s, background-color 0.3s;
  box-shadow: 0 4px 6px rgba(226, 0, 15, 0.2);
}

.contact-number .call-btn-header:hover {
  transform: translateY(-2px);
  background-color: #CC000D;
}

/* -------------------------------------------
   모바일 버튼 및 사이드 메뉴
------------------------------------------- */
.mobile-menu-btn {
  display: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-dark);
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 300px;
  height: 100vh;
  background-color: #fff;
  z-index: 2000;
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: -5px 0 15px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(0,0,0,0.5);
  z-index: 1500;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s;
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid #eee;
}

.mobile-menu-header h2 {
  font-size: 20px;
  color: var(--primary-color);
}

.close-btn {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text-gray);
}

.mobile-menu ul {
  padding: 20px 0;
}

.mobile-menu li a {
  display: block;
  padding: 15px 25px;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-dark);
  border-bottom: 1px solid #f5f5f5;
  transition: background-color 0.2s;
}

.mobile-menu li a:hover, .mobile-menu li a.active {
  background-color: #fff0f1;
  color: var(--primary-color);
}

.mobile-contact {
  margin-top: auto;
  padding: 20px;
}

.mobile-contact.btn-call-mobile {
  padding: 15px;
  border-radius: 8px;
}
.btn-call-mobile {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background-color: var(--primary-color);
  color: #fff;
  padding: 15px;
  border-radius: 8px;
  font-size: 18px;
  font-weight: 700;
  text-align: center;
}

/* -------------------------------------------
   메인 콘텐츠
------------------------------------------- */
main {
  margin-top: 80px; /* 헤더 여백 */
  min-height: calc(100vh - 250px);
}

.hero-section {
  width: 100%;
  overflow: hidden;
  background-color: #111;
  display: flex;
  justify-content: center;
}

.hero-banner {
  width: 100%;
  max-width: 1920px;
  object-fit: cover;
  animation: fadeIn 1s ease-out;
}

/* -------------------------------------------
   뷰어 섹션 (탭 전환 영역)
------------------------------------------- */
.content-section {
  max-width: 1200px;
  margin: 40px auto;
  min-height: 800px; /* 로딩 깜빡임 방지용 최소높이 */
  padding: 0 10px;
  position: relative;
}

.tab-content {
  display: none;
  animation: slideUpFade 0.6s ease forwards;
  margin: 0 auto;
}

.tab-content.active {
  display: block;
}

.slide-img {
  width: 100%;
  max-width: 1000px; /* 이미지 최대 가로 사이즈 설정 */
  margin: 0 auto 30px auto;
  display: block;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s;
}

.slide-img:hover {
  transform: translateY(-5px);
}

/* 중간 분양 상담 섹션 (Call to Action) */
.consult-banner {
  background: linear-gradient(135deg, var(--secondary-color) 0%, #1a1a1a 100%);
  color: #fff;
  text-align: center;
  padding: 60px 20px;
  margin-top: 60px;
}

.consult-container h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 15px;
}

.consult-container p {
  font-size: 16px;
  color: #aaa;
  margin-bottom: 30px;
}

.btn-consult-large {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background-color: var(--primary-color);
  color: #fff;
  padding: 18px 40px;
  border-radius: 50px;
  font-size: 22px;
  font-weight: 800;
  transition: transform 0.3s, box-shadow 0.3s;
}

.btn-consult-large:hover {
  transform: scale(1.05);
  box-shadow: 0 10px 20px rgba(226, 0, 15, 0.4);
}

/* -------------------------------------------
   플로팅 버튼 (우측 하단)
------------------------------------------- */
.floating-button {
  position: fixed;
  bottom: 40px;
  right: 40px;
  z-index: 999;
}

.floating-button a {
  display: flex;
  align-items: center;
  background: linear-gradient(45deg, var(--primary-color), #FF3B30);
  color: #fff;
  padding: 10px 25px 10px 10px;
  border-radius: 50px;
  box-shadow: 0 8px 25px rgba(226, 0, 15, 0.3);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.floating-button a:hover {
  transform: scale(1.08) translateY(-5px);
}

.fab-icon {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 22px;
  margin-right: 15px;
  animation: pulseRotate 2s infinite;
}

.fab-text {
  display: flex;
  flex-direction: column;
}

.fab-text span {
  font-size: 12px;
  font-weight: 500;
  opacity: 0.9;
}

.fab-text strong {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.5px;
}

/* -------------------------------------------
   푸터 (Footer)
------------------------------------------- */
footer {
  background-color: #222;
  color: #999;
  padding: 40px 20px;
  text-align: center;
}

.footer-content {
  max-width: 1000px;
  margin: 0 auto;
}

.footer-logo {
  font-size: 20px;
  font-weight: 700;
  color: #ddd;
  margin-bottom: 20px;
}

.footer-content p {
  line-height: 1.8;
  font-size: 14px;
}

.footer-notice {
  margin-top: 15px;
  font-size: 12px !important;
  color: #666;
}

.copyright {
  margin-top: 20px;
  color: #555;
}

/* -------------------------------------------
   애니메이션 효과
------------------------------------------- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUpFade {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulseRotate {
  0% { transform: scale(1) rotate(0); box-shadow: 0 0 0 0 rgba(255,255,255,0.7); }
  50% { transform: scale(1.1) rotate(5deg); box-shadow: 0 0 0 10px rgba(255,255,255,0); }
  100% { transform: scale(1) rotate(0); box-shadow: 0 0 0 0 rgba(255,255,255,0); }
}

/* -------------------------------------------
   프로모션 팝업 배너 (옵션 B)
------------------------------------------- */
.promo-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(0,0,0,0.6);
  z-index: 3000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease;
}

.promo-overlay.show {
  opacity: 1;
  visibility: visible;
}

.promo-banner-b {
  background: #fff;
  width: 90%;
  max-width: 400px;
  border-radius: 15px;
  padding: 35px 25px 20px 25px;
  text-align: center;
  box-shadow: 0 15px 40px rgba(0,0,0,0.3);
  border: 4px solid var(--primary-color);
  transform: translateY(50px) scale(0.9);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
}

.promo-overlay.show .promo-banner-b {
  transform: translateY(0) scale(1);
}

.promo-title {
  color: var(--primary-color);
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 15px;
}

.promo-text {
  font-size: 18px;
  line-height: 1.5;
  color: #333;
  margin-bottom: 25px;
  font-weight: 600;
}

.promo-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.promo-call-btn {
  background: var(--primary-color);
  color: #fff;
  padding: 15px;
  border-radius: 8px;
  font-size: 18px;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 4px 10px rgba(226, 0, 15, 0.3);
  transition: transform 0.2s;
}

.promo-call-btn:hover {
  transform: translateY(-2px);
  background: #C4000C;
}

.promo-close-btn {
  background: none;
  border: none;
  color: #888;
  font-size: 14px;
  padding: 10px;
  cursor: pointer;
  text-decoration: underline;
}

.promo-progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: #eee;
}

.promo-progress-fill {
  height: 100%;
  background: var(--primary-color);
  width: 100%;
  transition: width linear;
}

/* -------------------------------------------
   반응형 미디어 쿼리 (태블릿, 모바일)
------------------------------------------- */
@media screen and (max-width: 900px) {
  .gnb, .contact-number {
    display: none; /* 모바일에서는 숨김 처리 */
  }
  
  .mobile-menu-btn {
    display: block; /* 햄버거 메뉴 표시 */
  }

  /* 플로팅 버튼 모바일 대응 (약간 작게) */
  .floating-button {
    bottom: 20px;
    right: 20px;
  }
  
  .floating-button a {
    padding: 8px 15px 8px 8px;
  }

  .fab-icon {
    width: 40px;
    height: 40px;
    font-size: 18px;
    margin-right: 10px;
  }
  
  .fab-text span {
    font-size: 10px;
  }
  
  .fab-text strong {
    font-size: 15px;
  }
  
  .consult-banner h3 {
    font-size: 22px;
  }
  
  .btn-consult-large {
    font-size: 18px;
    padding: 15px 30px;
  }
}