/* =========================================================
   03. Components
   - Interactive widgets, dropdowns, toggles, overlays
   - Micro-interactions & utility components
   ========================================================= */

/* Language toggle & ecosystem chip */
.lang-controls{
  display: flex;
  align-items: center;
  gap: var(--space-16);
  pointer-events: auto;
  position: relative;
  z-index: 10;
}

.header-settings-btn{
  width: 42px;
  height: 42px;
  border: none;
  border-radius: 999px;
  background: #FFEAD6;
  color: #403E3C;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background .3s ease, box-shadow .3s ease, transform .25s ease;
}

.header-settings-btn:hover,
.header-settings-btn:focus-visible{
  background: #FF952D;
  color: #fff;
  box-shadow: 0 8px 18px rgba(216,107,0,0.3);
}

.header-settings-btn:focus-visible{
  outline: 2px solid rgba(216,107,0,0.5);
  outline-offset: 2px;
}

.header-settings-btn .material-icons{
  font-size: 22px;
  line-height: 1;
}

.lang-toggle{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  border-radius: 999px;
  height: 42px;
  pointer-events: auto;
  position: relative;
  z-index: 10;
  box-sizing: border-box;
}

.lang-toggle-btn{
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 0;
  background: none;
  color: #807F7F;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .08em;
  cursor: pointer;
  transition: background .3s ease, color .3s ease, transform .3s ease;
  position: relative;
  z-index: 10;
  pointer-events: auto;
  -webkit-user-select: none;
  user-select: none;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.lang-toggle-btn.is-active{
  background: #FF952D;
  color: #fff;
  transform: none;
}

.lang-toggle-btn:focus-visible{
  outline: 2px solid rgba(216,107,0,0.6);
  outline-offset: 2px;
}

.header-right{
  display: flex;
  align-items: center;
  gap: var(--space-16);
}

.sns-toggle{
  border: none;
  background: rgba(240,240,240,0.95);
  border-radius: 999px;
  padding: 4px;
  width: 74px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  transition: transform .2s ease, box-shadow .2s ease;
}
.sns-toggle:focus-visible{
  outline: 2px solid rgba(216,107,0,0.6);
  outline-offset: 2px;
}
.sns-toggle-track{
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #9B9B9B;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background .3s ease, transform .3s ease;
  transform: translateX(0);
}
.sns-toggle.is-active .sns-toggle-track{
  background: #0F0F10;
  transform: translateX(28px);
}
.sns-toggle-track img{
  width: 20px;
  height: 20px;
}

/* SNS Menu */
/* SNS Menu 하단 고정 */
.sns-menu-bottom{
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100vw;
  height: 42px;
  background-color: white;
  z-index: var(--z-header);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: height 0.3s ease;
}

.sns-menu-bottom.is-active{
  height: auto;
  min-height: 42px;
  padding: 12px 0;
}

.sns-menu-list{
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
}

.sns-menu-list li{
  display: flex;
  align-items: center;
  justify-content: center;
}

.sns-menu-link{
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: transparent;
  color: #807F7F;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: width 0.3s ease, height 0.3s ease, transform 0.2s ease;
  position: relative;
  overflow: visible;
}

/* inactive 상태: 이미지만 투명도 40% */
.sns-menu-bottom .sns-menu-link{
  overflow: visible;
}

.sns-menu-bottom .sns-menu-link img{
  width: 18px !important;
  height: 18px !important;
  min-width: 18px !important;
  min-height: 18px !important;
  display: block !important;
  visibility: visible !important;
  transition: width 0.3s ease, height 0.3s ease, opacity 0.3s ease, filter 0.3s ease;
  position: relative;
  z-index: 10;
  object-fit: contain;
  max-width: 100%;
  max-height: 100%;
  pointer-events: auto;
  background: none !important;
  border: none !important;
}

/* inactive 상태: SVG를 회색으로 변환하고 투명도 40% */
.sns-menu-bottom .sns-menu-link img{
  filter: brightness(0) saturate(100%) invert(51%) sepia(0%) saturate(0%) hue-rotate(0deg) brightness(100%) contrast(100%);
  opacity: 0.4 !important;
}

/* active 상태: SVG를 검은색으로 변환하고 투명도 100% */
.sns-menu-bottom.is-active .sns-menu-link img,
.sns-menu-link:hover img,
.sns-menu-link:focus-visible img,
.sns-menu-link:active img{
  filter: brightness(0) saturate(100%) invert(0%) sepia(0%) saturate(0%) hue-rotate(0deg) brightness(0%) contrast(100%);
  opacity: 1 !important;
}

/* active 상태 (hover, click, 터치) */
.sns-menu-bottom.is-active .sns-menu-link,
.sns-menu-link:hover,
.sns-menu-link:focus-visible,
.sns-menu-link:active{
  width: 46px;
  height: 46px;
}

.sns-menu-bottom.is-active .sns-menu-link img,
.sns-menu-link:hover img,
.sns-menu-link:focus-visible img,
.sns-menu-link:active img{
  width: 24px;
  height: 24px;
  opacity: 1;
}

.sns-menu-link:hover,
.sns-menu-link:focus-visible{
  transform: translateY(-2px);
}

.sns-menu-link:focus-visible{
  outline: 2px solid rgba(255,115,0,0.4);
  outline-offset: 2px;
}

.lang-dd{
  background: #F5F5F5;
  border-radius: 999px;
  padding: 4px;
  pointer-events: auto;
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ecosystem-btn{
  border: none;
  border-radius: 8px;
  padding: 12px 8px;
  min-height: 42px;
  background: #F2F2F2;
  color: #8F8F8F;
  font-weight: 700;
  font-family: "Asap Condensed", Pretendard;
  font-size: 16px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background .2s ease, color .2s ease;
}

.ecosystem-label{
  display: inline-block;
  color: inherit;
}

.ecosystem-btn:hover,
.ecosystem-btn:focus-visible,
.ecosystem-btn.is-active{
  background: #0F0F10;
  color: #FF7300;
}

.ecosystem-btn:focus-visible{
  outline: 2px solid rgba(216,107,0,0.5);
  outline-offset: 2px;
}

.header-menu-btn{
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: none;
  background: #FFFFFF;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform .2s ease, box-shadow .2s ease;
}
.header-menu-btn .material-icons{
  color: #9A9A9A;
}
.header-menu-btn:hover,
.header-menu-btn:focus-visible{
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(0,0,0,0.12);
}
.header-menu-btn:focus-visible{
  outline: 2px solid rgba(216,107,0,0.6);
  outline-offset: 2px;
}

.header-menu-btn.is-active{
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(0,0,0,0.12);
}

/* Sidebar Menu */
.sidebar-menu{
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(360px, 85vw);
  z-index: var(--z-modal);
  transform: translateX(100%);
  transition: transform .4s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
  box-sizing: border-box;
}

.sidebar-menu.is-open{
  transform: translateX(0);
  pointer-events: auto;
}

.sidebar-menu-content{
  height: 100%;
  padding: 120px 40px 40px;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(4px);
  border: 1px solid #FFFFFF;
  border-radius: 28px;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}

.sidebar-menu-title{
  font-family: "Asap Condensed", Pretendard;
  font-size: 32px;
  font-weight: 700;
  color: #0F0F10;
  margin: 0;
  line-height: 1.2;
}

.sidebar-menu-gap{
  height: 32px;
  flex-shrink: 0;
}

.sidebar-menu-nav{
  display: flex;
  flex-direction: column;
  gap: 0;
}

.sidebar-menu-nav--main{
  margin-bottom: 0;
}

.sidebar-menu-link{
  font-family: Pretendard;
  font-size: 16px;
  font-weight: 400;
  color: #0F0F10;
  text-decoration: none;
  padding: 8px 0;
  transition: color .2s ease, transform .2s ease;
  display: inline-block;
}

.sidebar-menu-link:hover,
.sidebar-menu-link:focus-visible{
  color: #FF7300;
  transform: translateX(4px);
}

.sidebar-menu-link:focus-visible{
  outline: 2px solid rgba(255,115,0,0.4);
  outline-offset: 2px;
  border-radius: 4px;
}

.sidebar-menu-copyright{
  font-family: Pretendard;
  font-size: 14px;
  font-weight: 400;
  color: #8F8F8F;
  margin: 0;
  margin-top: auto;
  padding-top: 32px;
}

@media screen and (max-width: 767px){
  .sidebar-menu{
    right: 0;
    width: min(320px, 90vw);
  }
  .sidebar-menu-content{
    padding: 100px 28px 32px;
  }
  .sidebar-menu-title{
    font-size: 28px;
  }
}

.header-arrow{
  display: none;
  width: 36px;
  height: 36px;
  border: 1px solid transparent;
  border-radius: 50%;
  background: none;
  color: #807F7F;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.header-arrow .material-icons{
  font-size: 20px;
}

.side-link-stack{
  position: fixed;
  right: 30px;
  bottom: 6%;
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  z-index: calc(var(--z-modal) - 10);
  box-sizing: border-box;
}

/* 두 번째 자식 요소 숨김 (코드는 유지) */
.side-link-stack > :nth-child(2){
  display: none !important;
  visibility: hidden !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

/* 모바일에서 SNS 링크와 겹치지 않도록 right 위치 조정 */
@media screen and (max-width: 767px){
  .side-link-stack{
    right: 10px;
  }
}

.side-link-btn{
  width: 56px;
  height: 56px;
  border-radius: 16px;
  border: 1px solid #FFFFFF;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(4px);
  box-shadow: 0 10px 24px rgba(0,0,0,0.12);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform .25s ease, box-shadow .25s ease, background .3s ease;
}

.side-link-btn:hover,
.side-link-btn:focus-visible{
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(0,0,0,0.18);
  background: rgba(0, 0, 0, 0.85);
}

.side-link-btn--image:hover,
.side-link-btn--image:focus-visible{
  background: url('../asset/icon/gitbook.png') center/cover no-repeat;
}

.side-link-btn:focus-visible{
  outline: 2px solid rgba(216,107,0,0.5);
  outline-offset: 2px;
}

.side-link-btn .material-icons{
  font-size: 24px;
  color: #403E3C;
}

.side-link-btn img{
  width: 24px;
  height: 24px;
  object-fit: contain;
  pointer-events: none;
}

.side-link-btn--image{
  background: url('../asset/icon/gitbook.png') center/cover no-repeat;
}


/* Version dropdown */
.version-dd{
  position: relative;
  height: 52px;
}

.version-dd-btn{
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-12);
  height: 52px;
  padding: 0 var(--space-16);
  border-radius: 999px;
  border: 1px solid #E4E2DF;
  background: #fff;
  color: #807F7F;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease;
}

.version-dd-btn:focus-visible{
  outline: 2px solid rgba(216,107,0,0.5);
  outline-offset: 3px;
}

.version-dd-btn .caret{
  fill: #807F7F;
  transition: transform .15s ease;
}

.version-dd-btn[aria-expanded="true"] .caret{
  transform: rotate(180deg);
}

.version-label{
  font-size: 14px;
  font-weight: 600;
  color: #807F7F;
}

.version-dd-menu{
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: #fff;
  border: 1px solid #E4E2DF;
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.12);
  padding: 6px;
  list-style: none;
  margin: 0;
  z-index: var(--z-dropdown);
}

.version-dd-menu[hidden]{
  display: none;
}

.version-dd-menu li{
  padding: 10px var(--space-12);
  border-radius: 8px;
  font-size: 14px;
  color: #191919;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-12);
}

.version-dd-menu li[aria-selected="true"]{
  background: rgba(255,149,45,0.1);
  color: var(--accent-dark);
  text-shadow: 0 0 1px rgba(216, 107, 0, 0.3);
}

.version-dd-menu li.focused:not([aria-selected="true"]),
.version-dd-menu li:hover{
  background: var(--hover-bg);
}

/* Mobile nav active bar */
.nav-active-bar{
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  width: 0;
  border-radius: 2px;
  background: #20201F;
  opacity: 1;
  transition: left .25s ease, width .25s ease, opacity .2s ease;
}

/* Mobile menu overlay */
.mobile-menu-overlay{
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.50);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease;
  z-index: var(--z-modal);
}

.mobile-menu-overlay.is-active{
  opacity: 1;
  pointer-events: auto;
}

html.menu-locked,
body.menu-locked{
  overflow: hidden !important;
  touch-action: none;
}

/* Service slider core layout */
.svc-slider{
  position: relative;
  overflow: hidden;
}

.svc-track{
  display: flex;
  transition: transform .45s ease;
  will-change: transform;
}

.svc-item{
  box-sizing: border-box;
  flex: 0 0 100%;
  display: grid;
  grid-template-columns: 416px minmax(0, 1fr);
  column-gap: 112px; /* align with desktop mock spacing */
  align-items: start;
}

/* Scroll to top button */
/* Reveal animation helper */
[data-fade-up]{
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

[data-fade-up].visible{
  opacity: 1;
  transform: translateY(0);
}

/* Touch targets */
@media (hover: none) and (pointer: coarse){
  .mobile-menu-btn,
  .nav-close-btn{
    min-height: 48px;
    min-width: 48px;
  }
}