.mobile-menu-toggle,
.mobile-nav {
  display: none;
}

header {
  padding: 15px 0 0 0;
  position: relative;
  top: 0;
  z-index: 1000;
  display: flex;
  flex-shrink: 0;
  justify-content: center;
  margin: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 40px 40px 0px 0px;
  background-color: #111111;
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

body.index-page header {
  padding-top: 0;
}

header.light {
  padding-top: 15px;
  background-color: #ffffff;
}

header.hover {
  background-color: #ffffff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

header .container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  width: 100%;
  max-width: 1400px;
  height: 112px;
  margin: 0 auto;
  position: relative;
}

.logo {
  position: absolute;
  left: 0;
  font-size: 1.5rem;
  font-weight: bold;
  text-decoration: none;
  color: #ffffff;
  transition: color 0.3s ease;
}

.logo-white {
  position: relative;
  z-index: 1;
  opacity: 1;
  transition: opacity 0.3s ease;
}

.logo-color {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  opacity: 0;
  transition: opacity 0.3s ease;
}

header.hover .logo-white {
  opacity: 0;
}

header.hover .logo-color {
  opacity: 1;
}

header.hover .nav-link {
  color: #000000;
}

header.hover .mobile-menu-btn {
  color: #000000;
}

header.hover .submenu-container {
  display: block;
}

header.hover .language-btn {
  border-color: #000000;
  color: #000000;
}

.main-nav {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 46px;
  height: 100%;
  margin: 0;
  list-style: none;
}

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
  text-align: left;
}

.nav-item:hover .nav-link:after {
  width: 100%;
  opacity: 1;
}

.nav-item.active .nav-link {
  color: #0066ff !important;
}

.nav-item.active .nav-link:after {
  width: 100%;
  opacity: 1;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 100%;
  padding: 0;
  margin: 0;
  font-size: 1.25rem;
  font-weight: 500;
  text-decoration: none;
  color: #ffffff;
}

.nav-link.light {
  color: #000000;
}

.nav-link:before,
.nav-link.light:before {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 100%;
  font-weight: 500;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.nav-link:hover {
  color: #0066ff !important;
}

.nav-link.light:hover {
  color: #0066ff !important;
}

.nav-link:hover:before,
.nav-link.light:hover:before {
  opacity: 1;
}

.nav-link-text {
  transition: opacity 0.2s ease;
}

.nav-link:hover .nav-link-text,
.nav-link.light:hover .nav-link-text {
  opacity: 0;
}

.nav-link img {
  transition: opacity 0.3s ease;
}

/* Market Place 아이콘 효과 */
.marketplace-icon {
  position: relative;
  display: grid;
  gap: 5px;
  --icon-color: currentColor;
  transition: --icon-color 0.3s ease;
}

.marketplace-icon .icon-hover {
  position: relative;
  z-index: 1;
  opacity: 1;
  filter: var(--icon-color);
  transition: opacity 0.3s ease;
}

.marketplace-icon .icon-default {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  opacity: 0;
  filter: var(--icon-color);
  transition: opacity 0.3s ease;
}

header.hover .marketplace-icon .icon-hover {
  opacity: 0;
}

header.hover .marketplace-icon .icon-default {
  opacity: 1;
}

.nav-item[data-menu="marketplace"]:hover .marketplace-icon {
  --icon-color: brightness(0) saturate(100%) invert(30%) sepia(100%) saturate(2000%) hue-rotate(210deg) brightness(100%) contrast(120%);
}

.nav-item[data-menu="marketplace"]:hover img {
  filter: brightness(0) saturate(100%) invert(30%) sepia(100%) saturate(2000%) hue-rotate(210deg) brightness(100%) contrast(120%);
}

.submenu-container {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 999;
  display: none;
  width: 100%;
  padding: 45px 0;
  border-bottom-left-radius: 30px;
  border-bottom-right-radius: 30px;
  background-color: rgba(255, 255, 255, 0.9);
  box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.25);
}

.submenu-wrapper {
  display: flex;
  justify-content: center;
  max-width: 1920px;
  margin: 0 auto;
  padding: 0 50px;
}

.submenu {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 40px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.submenu .line {
  color: rgba(0, 0, 0, 0.2);
}

.submenu li a {
  position: relative;
  padding: 10px 0;
  font-size: 1.1875rem;
  font-weight: 500;
  text-decoration: none;
  color: #111111;
  transition: color 0.3s ease;
}

.submenu li a:hover {
  color: #111111;
}

.submenu li a:hover:after {
  width: 100%;
  opacity: 1;
}

.submenu li.active a {
  font-weight: 700;
}

.submenu li.active a:after {
  width: 100%;
  opacity: 1;
}

.language-dropdown {
  position: relative;
}

.language-dropdown.show .language-dropdown-content {
  display: block;
}

.language-btn {
  display: flex;
  align-items: center;
  padding: 10px 15px;
  border: 1px solid white;
  border-radius: 20px;
  background-color: transparent;
  font-size: 0.875rem;
  color: #ffffff;
  cursor: pointer;
  transition: border-color 0.3s ease, color 0.3s ease;
}

.language-btn:hover {
  border: 1px solid white;
}

.language-btn:after {
  margin-left: 6px;
  font-size: 0.625rem;
  content: "▼";
}

.language-dropdown-content {
  position: absolute;
  right: 0;
  z-index: 1000;
  display: none;
  min-width: 120px;
  border-radius: 10px;
  background-color: #ffffff;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.language-dropdown-content a {
  display: block;
  padding: 12px 16px;
  text-align: center;
  text-decoration: none;
  color: #333333;
  transition: background-color 0.3s;
}

.language-dropdown-content a:hover {
  background-color: #f0f0f0;
}

.language-dropdown-content a.active {
  background-color: #f0f7ff;
  font-weight: 600;
  color: #0066ff;
}

.mobile-menu-btn {
  display: none;
  border: none;
  background: none;
  font-size: 1.5rem;
  color: #ffffff;
  cursor: pointer;
  transition: color 0.3s ease;
}

@media (max-width: 1700px) {
  .nav-menu {
    gap: 30px;
  }
}

@media (max-width: 1600px) {
  .nav-menu {
    gap: 35px;
  }
}

@media (max-width: 1600px) {
  header .container {
    padding-left: 40px;
    padding-right: 40px;
  }

  .logo {
    left: 40px;
  }

  .submenu-wrapper {
    padding-left: 40px;
    padding-right: 40px;
  }
}

@media (max-width: 1200px) {
  header .container {
    padding-left: 60px;
    padding-right: 60px;
  }

  .logo {
    left: 60px;
  }

  .nav-menu {
    gap: 20px;
  }

  .nav-link {
    font-size: 1rem;
  }

  .submenu-wrapper {
    padding-left: 60px;
    padding-right: 60px;
  }
}

@media (max-width: 1000px) {
  header .container {
    padding-left: 50px;
    padding-right: 50px;
    justify-content: center;
  }

  .logo {
    left: 50px;
  }

  .nav-menu {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .language-dropdown {
    margin-left: 15px;
  }

  .mobile-menu-toggle {
    position: absolute;
    top: 45px;
    right: 50px;
    z-index: 1001;
    display: block;
    border: none;
    background: none;
    font-size: 1.5rem;
    color: #ffffff;
    cursor: pointer;
  }

  .mobile-nav {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 1000;
    display: none;
    height: calc(100vh - 50px);
    padding: 10px 10px 40px 10px;
    background: #111111;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    overflow-y: auto;
  }

  .mobile-nav.active {
    top: 120px;
    display: grid;
    max-height: 100vh;
    padding: 10px 30px 40px 30px;
    overflow-y: auto;
  }

  .mobile-nav.light {
    background: #ffffff;
  }

  .mobile-nav-list {
    margin: 0;
    padding-bottom: 50px;
    list-style: none;
  }

  .mobile-nav-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    height: 70px;
    padding: 0 20px;
    border: none;
    background: none;
    font-size: 1.1rem;
    text-align: left;
    color: #ffffff;
    cursor: pointer;
  }

  .mobile-nav-item.light ul li a {
    color: #000000;
  }

  .mobile-nav-link.light {
    color: #000000;
  }

  .mobile-nav-link:hover {
    background-color: rgba(0, 0, 0, 0.5);
  }

  .mobile-nav-link.light:hover {
    background-color: rgba(209, 209, 209, 0.5);
  }

  .mobile-submenu li {
    padding: 10px 0;
  }

  .mobile-submenu {
    max-height: 0;
    margin: 0;
    padding-left: 15px;
    opacity: 0;
    overflow: hidden;
    list-style: none;
    transition: max-height 0.7s ease, opacity 0.7s ease;
  }

  .mobile-submenu li a {
    display: block;
    padding: 6px 30px;
    text-decoration: none;
    color: #ffffff;
  }

  .mobile-submenu li a:hover {
    text-decoration: underline;
  }

  .mobile-submenu.show {
    display: block;
    max-height: 500px;
    opacity: 1;
  }

  .mobile-language {
    margin-top: 15px;
    padding-left: 20px;
  }

  .mobile-language span {
    cursor: pointer;
  }

  .mobile-language span:hover {
    font-weight: bold;
  }

  .language-dropdown,
  .submenu-container,
  .nav-menu {
    display: none;
  }
}

@media (max-width: 768px) {
  header .container {
    padding: 0 50px;
  }

  .logo {
    left: 50px;
  }

  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    z-index: 1000;
    display: none;
    flex-direction: column;
    width: 100%;
    padding: 0px 0;
    background-color: #000000;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-item {
    width: 100%;
    margin: 0;
    text-align: center;
  }

  .nav-link {
    padding: 15px 0;
    font-weight: 500;
  }

  .mobile-nav-link {
    font-size: 1.1rem;
  }

  .mobile-nav {
    top: 90px;
  }
}

@media (max-width: 480px) {
  header {
    width: 100%;
    border-radius: 0;
  }

  .mobile-menu-toggle {
    top: 30px;
    right: 30px;
    font-size: 1.1rem;
  }

  .mobile-nav.active {
    top: 60px;
    display: grid;
    max-height: 100vh;
    padding: 10px 10px 40px 10px;
    overflow-y: auto;
  }

  header .container {
    height: 80px;
    padding: 0 30px;
  }

  .logo {
    left: 30px;
  }

  .logo img {
    width: 100px;
  }

  body:not(.index-page) header {
    padding-top: 0 !important;
  }

  .mobile-nav {
    top: 80px;
  }
}