.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 99;
  background-color: transparent;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.header.hovered,
.header.scrolled {
  background-color: #ffffff;
}

.header.hovered .header__gnb,
.header.scrolled .header__gnb,
.header.hovered .header__btn,
.header.scrolled .header__btn {
  color: #000;
}

.header__nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 50px;
  height: 80px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header__logo img {
  height: 25px;
}

.header__btn {
  display: flex;
  align-items: center;
  gap: 1rem;
  color: #ffffff;
}

.header__btn .search_btn {
  cursor: pointer;
  transform: translateY(2px);
}

.header__btn .menu_btn {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  cursor: pointer;
}

.header__btn .menu_btn .bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: #ffffff;
  transition: 0.3s ease;
}

.header.hovered .menu_btn .bar,
.header.scrolled .menu_btn .bar {
  background-color: #333333;
}

.menu_btn:hover .bar:nth-child(1) {
  width: 80%;
}

.menu_btn:hover .bar:nth-child(2) {
  width: 60%;
}

.header__gnb {
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: "pretendard", '맑은 고딕';
  font-size: 1.125rem;
  color: #ffffff;
}

.header__gnb>li {
  min-width: 200px;
  height: 100%;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
}

.header__gnb>li::after {
  content: "";
  position: absolute;
  bottom: -3px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 100%;
  height: 2px;
  z-index: 2;
  background-color: #0036c5;
  transition: transform 0.3s ease;
  transform-origin: center;
}

.header__gnb>li:hover::after {
  transform: translateX(-50%) scaleX(1);
}

.header__gnb>li.active::after {
  transform: translateX(-50%) scaleX(1);
}

.header__sub {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: 270px;
  background: white;
  z-index: 1;
  display: none;
  text-align: center;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.header__sub_wrap {
  position: relative;
  width: 100%;
  height: 100%;
}

.header__sub_list {
  position: absolute;
  top: 0;
  width: 200px;
  height: 100%;
  white-space: normal;
  padding-left: 0;
  margin: 0;
  padding-top: 20px;
  list-style: none;
  text-align: center;
  border-left: 1px solid rgba(0, 0, 0, 0.1);
}

.header__sub_list:last-child {
  border-right: 1px solid rgba(0, 0, 0, 0.1);
}

.header__sub_list li {
  margin-bottom: 10px;
}

.header__sub_list li a {
  color: #333;
  font-size: 1rem;
  text-decoration: none;
  padding: 5px 10px;
  display: inline-block;
  transition: color 0.3s ease;
}

.header__sub_list li a:hover {
  color: #0036c5;
}

@media screen and (max-width: 1280px) {
  .header__gnb>li {
    min-width: 150px;
  }

  .header__sub_list {
    width: 150px;
  }
}

@media screen and (max-width: 1024px) {
  .header__gnb {
    display: none;
  }
}

@media screen and (max-width: 768px) {
  .header__nav {
    padding: 0 24px;
    height: 60px;
  }

  .header__logo img {
    height: 40px;
  }
}

/* mobile__menu */

body.no_scroll {
  overflow: hidden;
  height: 100vh;
}

.mobile__menu {
  position: fixed;
  top: 0;
  right: 0;
  width: 85%;
  max-width: 320px;
  height: 100vh;
  background: #ffffff;
  transform: translateX(120%);
  transition: transform 0.35s ease;
  z-index: 999;
  display: flex;
  flex-direction: column;
  padding: 2rem 1.5rem 5rem;
  padding-bottom: env(safe-area-inset-bottom);
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
  border-top-left-radius: 1rem;
  border-bottom-left-radius: 1rem;
}

.mobile__menu.active {
  transform: translateX(0);
}

.mobile__top {
  display: flex;
  justify-content: end;
  align-items: center;
  margin-bottom: 2rem;
}

.mobile__menu_close {
  background: none;
  border: none;
  font-size: 1.8rem;
  line-height: 1;
  cursor: pointer;
  color: #444;
  transition: color 0.2s;
}

.mobile__menu_close:hover {
  color: var(--color_primary);
}

.mobile__admin {
  font-size: 0.9rem;
  color: #666;
}

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

.mobile__menu_list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile__menu_main {
  font-size: 1.25rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.75rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #222;
  transition: color 0.2s;
  border-bottom: 1px solid #eee;
}

.mobile__menu_main:hover {
  color: #0036c5;
}

.mobile__submenu {
  list-style: none;
  padding-left: 1rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  font-size: 1rem;
}

.mobile__submenu li {
  padding: 0.4rem 0;
}

.mobile__submenu li a {
  color: #555;
  text-decoration: none;
  display: block;
  transition: color 0.2s;
}

.mobile__submenu li a:hover {
  color: var(--color_primary);
}

.mobile__bottom_btns {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: space-around;
  border-top: 1px solid #eee;
  background: #fafafa;
  padding: 1rem 0;
}

.mobile__bottom_btns button {
  flex: 1;
  margin: 0 0.25rem;
  padding: 0.75rem;
  font-size: 0.95rem;
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background 0.2s;
}

.mobile__bottom_btns .btn-2 {
  background: var(--color_primary);
  color: #fff;
}

.mobile__bottom_btns .btn-3 {
  background: #1d3557;
  color: #ffffff;
}

.mobile__dimmed {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0, 0, 0, 0.4);
  z-index: 998;
  backdrop-filter: blur(2px);
  transition: opacity 0.3s ease;
}

.mobile__dimmed.active {
  display: block;
}


.contact__side {
  position: absolute;
  /* 문서 기준 */
  right: 0;
  top: 100px;
  /* 초기 위치 */
  transform: rotate(-90deg) translateY(-100%);
  transform-origin: right top;
  z-index: 98;
  display: flex;
}

.contact__side div {
  padding: 1rem 2rem;
  font-size: 1rem;
  text-align: center;
  cursor: pointer;
}

.contact__kakao {
  background-color: var(--color_primary);
  color: #000;
  font-weight: 700;
}

.contact__online {
  background-color: #1d3557;
  color: #fff;
}

@media (max-width: 1024px) {
  .contact__side {
    display: none;
  }
}