/*--------------------------------------------------------------
# General
--------------------------------------------------------------*/
body {
    font-family: 'Noto Sans KR', sans-serif;
    color: #444444;
  }
  
  a {
    text-decoration: none;
    color: #0ab7ec;
  }
  
  a:hover {
    color: #0ab7ec;
    text-decoration: none;
  }
  
  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    font-family: 'Noto Sans KR', sans-serif;
  }

  p {
    font-size: 15px;
    font-family: 'Noto Sans KR', sans-serif;
  }
  
  
  /*--------------------------------------------------------------
  # Back to top button
  --------------------------------------------------------------*/
  .back-to-top {
    position: fixed;
    visibility: hidden;
    opacity: 0;
    right: 15px;
    bottom: 15px;
    z-index: 996;
    background: #0ab7ec;
    width: 40px;
    height: 40px;
    border-radius: 4px;
    transition: all 0.4s;
  }
  
  .back-to-top i {
    font-size: 24px;
    color: #fff;
    line-height: 0;
  }
  
  .back-to-top:hover {
    background: #7ad5f1;;
    color: #fff;
  }
  
  .back-to-top.active {
    visibility: visible;
    opacity: 1;
  }
  
  /*--------------------------------------------------------------
  # Top Bar
  --------------------------------------------------------------*/
  #topbar {
    background: #0ab7ec;
    font-size: 15px;
    height: 40px;
    padding: 0;
  }
  
  #topbar .contact-info {
    display: flex;
    justify-content: space-between;
    width: 100%;
  }
  
  #topbar .contact-info a {
    line-height: 0;
    color: #ffffff;
    transition: 0.3s;
  }
  
  #topbar .contact-info a:hover {
    color: #444444;
  }
  
  #topbar .contact-info i {
    color: #ffffff;
    line-height: 0;
    margin-right: 5px;
  }
  
  #topbar .contact-info .phone-icon {
    margin-left: 15px;
  }
  
  #topbar .contact-info span {
    color: #ffffff; 
  }
  
  #topbar .social-links a {
    color: #ffffff;
    padding: 4px 12px;
    display: inline-block;
    line-height: 1px;
    transition: 0.3s;
  }
  
  #topbar .social-links a:hover {
    color: #0ab7ec;
  }
  
  @media (max-width: 768px) {
    #topbar {
      height: auto;
      padding: 10px 0;
    }
  
    #topbar .contact-info {
      display: flex;
      flex-direction: column;
    }
  
    #topbar .contact-info > div {
      flex-basis: 100%;  
      text-align: center; 
      margin-bottom: 10px;
    }
  }
  
  
  /*--------------------------------------------------------------
  # Header
  --------------------------------------------------------------*/

/*--------------------------------------------------------------
# Header
--------------------------------------------------------------*/
#header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #fff;
  transition: all 0.5s;
  z-index: 997;
  height: 90px;
}

#header.header-scrolled {
  box-shadow: 0px 2px 15px rgba(0, 0, 0, 0.1);
}

#header .logo {
  font-size: 30px;
  margin: 0;
  padding: 0;
  line-height: 1;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
}

#header .logo a {
  color: #0ab7ec;
}

#header .logo img {
  max-height: 40px;
}

.scrolled-offset {
  margin-top: 70px;
}

.logo a {
  font-size: 20px; 
  white-space: nowrap; 
}

.logo-container {
  display: flex;
  align-items: center;
  justify-content: space-between; 
  color: #0ab7ec;
}

.left-side {
  display: flex;
  flex-direction: column; 
}

.mobile-nav-toggle {
  color: #0ab7ec;
  font-size: 28px;
  cursor: pointer;
  display: none;
  line-height: 0;
  transition: 0.5s;
}

/*--------------------------------------------------------------
# Navigation Menu
--------------------------------------------------------------*/
/**
* Desktop Navigation 
*/
.navbar {
  padding: 0;
}

.navbar ul {
  margin: 0;
  padding: 0;
  display: flex;
  list-style: none;
  align-items: center;
}

.navbar li {
  position: relative;
}

.navbar a,
.navbar a:focus {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0 10px 30px;
  font-size: 15px;
  color: #222222;
  white-space: nowrap;
  transition: 0.3s;
}

.navbar a i,
.navbar a:focus i {
  font-size: 12px;
  line-height: 0;
  margin-left: 5px;
}

.navbar a:hover,
.navbar .active,
.navbar .active:focus,
.navbar li:hover>a {
  color: #0ab7ec;
}

.navbar .getstarted,
.navbar .getstarted:focus {
  color: #0ab7ec;
  padding: 8px 25px;
  margin-left: 30px;
  border-radius: 4px;
  border: 2px solid #0ab7ec;
  transition: 0.3s;
  font-size: 14px;
}

.navbar .getstarted:hover,
.navbar .getstarted:focus:hover {
  background: #0ab7ec;
  color: #fff;
}

/* 메뉴 항목 간 간격 늘리기 */
.navbar a {
  padding: 10px 0 10px 60px; /* 좌측 패딩을 증가시킵니다 */
}

.navbar .dropdown {
  position: relative;
}

.navbar .dropdown ul {
  display: none;
  position: absolute;
  left: 0;
  top: 100%;
  transform: translateX(20px);
  margin: 0;
  padding: 5px 0; /* 제목들 사이의 간격 늘리기 */
  width: 100vw; /* 화면의 전체 너비로 설정 */
  background: none; /* 배경 제거 */
  z-index: 99;
  white-space: normal;
  overflow: hidden;
  transition: height 0.3s ease;
}

.navbar .dropdown ul li {
  min-width: 250px; /* 하위 메뉴의 최소 너비를 증가 */
  padding: 5px 20px; /* 하위 메뉴의 상하 간격을 좁히고 좌우 패딩을 넓힘 */
}

.navbar .dropdown ul a {
  padding: 10px 20px;
  text-transform: none;
  white-space: normal; /* 텍스트 줄바꿈 허용 */
}

.navbar .dropdown ul a i {
  font-size: 14px;
}

.navbar .dropdown ul li a {
  font-size: 14px;
}

.navbar .dropdown ul a:hover,
.navbar .dropdown ul .active:hover,
.navbar .dropdown ul li:hover>a {
  color: #0ab7ec;
}

.navbar .dropdown:hover>ul {
  display: block;
  height: auto;
}

#dropdown-background {
  display: none;
  position: fixed;
  top: 100px;
  left: 0;
  right: 0;
  width: 100%;
  background: #fff;
  z-index: 98;
  transition: height 0.3s ease;
}
 

/**
* Mobile Navigation 
*/
.mobile-nav-toggle {
  color: #283d50;
  font-size: 28px;
  cursor: pointer;
  display: none;
  line-height: 0;
  transition: 0.5s;
}

.mobile-nav-toggle.bi-x {
  color: #fff;
}

@media (max-width: 991px) {
  .mobile-nav-toggle {
    display: block;
  }

  #dropdown-background {
    display: none !important;
  }

  .navbar ul {
    display: none;
  }
}

.navbar-mobile {
  position: fixed;
  overflow: hidden;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  background: rgba(23, 35, 46, 0.9);
  transition: 0.3s;
  z-index: 999;
}

.navbar-mobile .mobile-nav-toggle {
  position: absolute;
  top: 15px;
  right: 15px;
}

.navbar-mobile ul {
  display: block;
  position: absolute;
  top: 55px;
  right: 15px;
  bottom: 15px;
  left: 15px;
  padding: 10px 0;
  background-color: #fff;
  overflow-y: auto;
  transition: 0.3s;
}

.navbar-mobile a,
.navbar-mobile a:focus {
  padding: 10px 20px;
  font-size: 15px;
  color: #004289;
}

.navbar-mobile a:hover,
.navbar-mobile .active,
.navbar-mobile li:hover>a {
  color: #64cbf8;
}

.navbar-mobile .dropdown ul {
  position: static;
  display: none;
  margin: 10px 20px;
  padding: 10px 0;
  z-index: 99;
  opacity: 1;
  visibility: visible;
  background: #fff;
  box-shadow: 0px 0px 30px rgba(127, 137, 161, 0.25);
  width: 300px; 
}

.navbar-mobile .dropdown ul li {
  min-width: 200px;
}

.navbar-mobile .dropdown ul a {
  padding: 10px 20px;
}

.navbar-mobile .dropdown ul a i {
  font-size: 12px;
}

.navbar-mobile .dropdown ul a:hover,
.navbar-mobile .dropdown ul .active:hover,
.navbar-mobile .dropdown ul li:hover>a {
  color: #64cbf8;
}

.navbar-mobile .dropdown>.dropdown-active {
  display: block;
}

/*--------------------------------------------------------------
# Hero Section
--------------------------------------------------------------*/
#hero {
  width: 100%;
  position: relative;
  background: url("../img/background/bg-1.jpg") center center no-repeat;
  background-size: cover;
  display: flex;
  justify-content: center; 
  align-items: center; 
  padding: 200px 0 120px 0;
  overflow: hidden; 
}

#hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  /* background: rgba(0, 0, 0, 0); */
  background: rgba(0, 0, 0, 0.3); 
  z-index: 1;
}

  
  @media (max-width: 991px) {
    #hero {
      padding: 140px 0 60px 0;
    }
  }
  
  @media (max-width: 574px) {
    #hero {
      padding: 100px 0 20px 0;
    }
  }
  
  #hero .hero-img {
    width: 50%;
    float: right;
  }
  
  @media (max-width: 991px) {
    #hero .hero-img {
      width: 80%;
      float: none;
      margin: 0 auto 25px auto;
    }
  }
  
  #hero .hero-info {
    width: 85%;
    float: left;
  }
  
  @media (max-width: 991px) {
    #hero .hero-info {
      width: 80%;
      float: none;
      margin: auto;
      text-align: center;
    }
  }
  
  @media (max-width: 767px) {
    #hero .hero-info {
      width: 100%;
    }
  }
  
  #hero .hero-info {
    position: relative;
    z-index: 2; 
  }
  
  #hero .hero-info h2 {
    color: #fff;
    margin-bottom: 40px;
    font-size: 38px;
    font-weight: 700;
    text-align: right;
  }
  
  #hero .hero-info h2 span {
    color: #74b5fc;
    text-decoration: underline;
  }

  p > span:first-of-type {
    font-weight: bold;
    color: #0ab7ec;
}

p > span:not(:first-of-type) {
    font-weight: bold;
    color: black;
}
  
.half-size-image {
  width: 50%;
  display: block;
  margin: auto;
}

  @media (max-width: 767px) {
    #hero .hero-info h2 {
      font-size: 23px;
      margin-bottom: 30px;
    }
    .img-fluid {
      margin-top: -10px;
    }
  }
  
  #hero .hero-info .btn-get-started,
  #hero .hero-info .btn-services {
    font-family: "Montserrat", sans-serif;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    display: inline-block;
    padding: 10px 32px;
    border-radius: 50px;
    transition: 0.5s;
    margin: 0 20px 20px 0;
    color: #fff;
  }
  
  #hero .hero-info .btn-get-started {
    background: #64cbf8;
    border: 2px solid #64cbf8;
    color: #fff;
  }
  
  #hero .hero-info .btn-get-started:hover {
    background: none;
    border-color: #fff;
    color: #fff;
  }
  
  #hero .hero-info .btn-services {
    border: 2px solid #fff;
  }
  
  #hero .hero-info .btn-services:hover {
    background: #64cbf8;
    border-color: #64cbf8;
    color: #fff;
  }

  body {
    font-family: 'Arial', sans-serif;
}

/*--------------------------------------------------------------
# Sections General
--------------------------------------------------------------*/
section {
  padding: 60px 0;
}

.section-bg {
  background-color: #f1f4f1;
}

.section-title {
  text-align: center;
  padding-bottom: 30px;
}

.section-title h2 {
  font-size: 32px;
  font-weight: bold;
  text-transform: uppercase;
  margin-bottom: 20px;
  padding-bottom: 20px;
  position: relative;
}

.section-title h2::before {
  content: "";
  position: absolute;
  display: block;
  width: 120px;
  height: 1px;
  background: #ddd;
  bottom: 1px;
  left: calc(50% - 60px);
}

.section-title h2::after {
  content: "";
  position: absolute;
  display: block;
  width: 40px;
  height: 3px;
  background: #0ab7ec;
  bottom: 0;
  left: calc(50% - 20px);
}

.section-title p {
  margin-bottom: 0;
  font-size: 14px;
  color: #919191;
}

/* About Section */
#about {
    background: #fff;
    padding: 60px 0;
  }
  
  #about .about-container .background {
    margin: 20px 0;
  }
  
  #about .about-container .content {
    background: #fff;
  }
  
  #about .about-container .title {
    color: #333;
    
    font-weight: 700;
    font-size: 32px;
    margin-top: 10px;
    margin-bottom: 5px;
  }
  
  #about .about-container p {
    line-height: 26px;
  }
  
  #about .about-container p:last-child {
    margin-bottom: 0;
  }
  
  #about .about-container .icon-box {
    background: #fff;
    background-size: cover;
    padding: 0 0 10px 0;
    margin-bottom: 5px;
  }
  
  #about .about-container .icon-box .icon {
    float: left;
    background: #fff;
    width: 64px;
    height: 64px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    border: 2px solid #64cbf8;
    transition: all 0.3s ease-in-out;
  }
  
  #about .about-container .icon-box .icon i {
    color: #64cbf8;
    font-size: 24px;
    line-height: 0;
  }
  
  #about .about-container .icon-box:hover .icon {
    background: #64cbf8;
  }
  
  #about .about-container .icon-box:hover .icon i {
    color: #fff;
  }
  
  #about .about-container .icon-box .title {
    margin-left: 80px;
    font-weight: 600;
    font-size: 18px;
  }
  
  #about .about-container .icon-box .title a {
    color: #283d50;
  }
  
  #about .about-container .icon-box .description {
    margin-left: 80px;
    line-height: 24px;
    font-size: 15px;
  }
  
  #about .about-extra {
    padding-top: 60px;
  }
  
  #about .about-extra h4 {
    font-weight: 600;
    font-size: 24px;
  }


  .book-covers {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px; /* 이미지 간의 간격 조정 */
    margin-top: 20px; 
    margin-bottom: 20px;
  }
  
  .book-cover {
    width: 200px;
    height: 260px;
    object-fit: cover;
    border:1px solid #444444;
  }


@media (max-width: 767px) {
  .book-cover {
    width: 100%;
    max-width: 170px; /* 스마트폰 화면에서의 최대 너비 */
  }
}

  .cogmo {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    margin-top: 20px;
  }
  


/*--------------------------------------------------------------
message-form
--------------------------------------------------------------*/
.message-form {
  width: 100%;
  border-top: 3px solid #0ab7ec;
  border-bottom: 3px solid #0ab7ec;
  padding: 30px;
  background: #fff;
  box-shadow: 0 0 24px 0 rgba(0, 0, 0, 0.12);
}

.message-form .form-group {
  padding-bottom: 8px;
}

.message-form .error-message {
  display: none;
  color: #fff;
  background: #ed3c0d;
  text-align: left;
  padding: 15px;
  font-weight: 600;
}

.message-form .error-message br+br {
  margin-top: 25px;
}

.message-form .sent-message {
  display: none;
  color: #fff;
  background: #18d26e;
  text-align: center;
  padding: 15px;
  font-weight: 600;
}

.message-form .loading {
  display: none;
  background: #fff;
  text-align: center;
  padding: 15px;
}

.message-form .loading:before {
  content: "";
  display: inline-block;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  margin: 0 10px -6px 0;
  border: 3px solid #18d26e;
  border-top-color: #eee;
  animation: animate-loading 1s linear infinite;
}

@keyframes animate-loading {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

/*--------------------------------------------------------------
# Footer
--------------------------------------------------------------*/
#footer {
    background: #090909;
    color: #fff;
    font-size: 14px;
    text-align: center;
    padding: 30px 0;
  }
  
  #footer h3 {
    font-size: 36px;
    font-weight: 700;
    color: #fff;
    position: relative;
    font-family: "Poppins", sans-serif;
    padding: 0;
    margin: 0 0 15px 0;
  }
  
  #footer p {
    font-size: 15;
    font-style: italic;
    padding: 0;
    margin: 0 0 40px 0;
  }
  
  #footer .social-links {
    margin: 0 0 40px 0;
  }
  
  #footer .social-links a {
    font-size: 18px;
    display: inline-block;
    background: #0ab7ec;
    color: #fff;
    line-height: 1;
    padding: 8px 0;
    margin-right: 4px;
    border-radius: 50%;
    text-align: center;
    width: 36px;
    height: 36px;
    transition: 0.3s;
  }
  
  #footer .social-links a:hover {
    background: #449d5b;
    color: #fff;
    text-decoration: none;
  }
  
  #footer .copyright {
    margin: 0 0 5px 0;
  }
  
  #footer .credits {
    font-size: 13px;
  }