.container1520 {
  max-width: 1520px;
  width: 93%;
  margin: 0 auto;
}

.header_inner {
  max-width: 1800px;
  width: 100%;
  margin: 0 auto;
}

/* header */
header {
  position: fixed;
  top: var(--header-inset);
  left: var(--header-inset);
  right: var(--header-inset);
  width: auto;
  height: var(--header-height);
  z-index: 1000;
  background: var(--white);
  color: var(--color-text-strong);
  border-radius: 15px;
  box-shadow: 0 0 20px rgba(3, 7, 18, 0.18);
  transition:
    top 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    left 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    right 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    height 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    border-radius 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    box-shadow 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

header.is-scrolled {
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  border-radius: 0;
  box-shadow: 0 4px 16px rgba(3, 7, 18, 0.12);
}

:root {
  --header-inset: 10px;
  --header-height: 70px;
  --header-offset: calc(var(--header-inset) + var(--header-height));
}

.h_top {
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  border-bottom: 0.5px solid var(--color-text-muted);
}

.h_logo {
  height: min(3.6rem, 2.8vw);
  filter: none;
}

.h_logo img {
  display: block;
  width: auto;
  height: 100%;
}

.header_inner.header_in_wrap,
.header_in_wrap {
  position: relative;
  max-width: 1800px;
  height: 70px;
  margin: 0 auto;
  width: 100%;
  padding: 0 min(40px, 4vw);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: height 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

header.is-scrolled .header_in_wrap {
  height: 80px;
}

.header_in_wrap nav {
  position: absolute;
  left: 50%;
  top: 0;
  height: 100%;
  display: flex;
  align-items: center;
  transform: translateX(-50%);
}

.header_in_wrap .gnb {
  display: flex;
  height: 100%;
  gap: min(50px, 2.75vw);
  font-family: "Paperlogy", sans-serif;
  font-size: min(20px, 1.5vw);
  font-style: normal;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -0.04rem;
}

.header_in_wrap .gnb li {
  display: flex;
  align-items: center;
  height: 100%;
}

.header_in_wrap .gnb li a {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: auto;
  padding: 0;
  color: #706866;
  font-size: min(20px, 1.5vw);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.04rem;
  transition: color 0.38s ease;
}

.header_in_wrap .gnb li a:hover,
.header_in_wrap .gnb li.active a,
.header_in_wrap .gnb li a.active {
  color: var(--mint-deep);
}

/* 글자 바로 아래 3px 라인 — 가운데에서 펼침 */
.header_in_wrap .gnb li a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 3px;
  background: var(--mint-deep);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.header_in_wrap .gnb li a:hover::after,
.header_in_wrap .gnb li.active a::after,
.header_in_wrap .gnb li a.active::after {
  transform: scaleX(1);
}

.header_in_wrap .header_link {
  display: none;
  align-items: center;
  font-family: "NEXON Lv2 Gothic";
  font-weight: bold;
  color: var(--color-text-strong);
}

.link_img {
  margin-right: 1rem;
}

/* 햄버거 메뉴 */
.hamburger {
  padding: 0;
  display: inline-block;
  cursor: pointer;
  transition-property: opacity, filter;
  transition-duration: 0.15s;
  transition-timing-function: linear;
  font: inherit;
  color: inherit;
  text-transform: none;
  background-color: transparent;
  border: 0;
  margin: 0;
  overflow: visible;
}

.hamburger:hover {
  opacity: 0.7;
}

.hamburger.is-active:hover {
  opacity: 0.7;
}

.hamburger-box {
  width: 30px;
  height: 20px;
  display: inline-block;
  position: relative;
}

.hamburger-inner {
  display: block;
  top: 50%;
  width: 100%;
  height: 10%;
  translate: 0 -50%;
}

.hamburger-inner,
.hamburger-inner::before,
.hamburger-inner::after {
  width: 100%;
  background-color: var(--k700);
  border-radius: 1px;
  position: absolute;
  transition-property: transform;
  transition-duration: 0.15s;
  transition-timing-function: ease;
}

.hamburger.is-active .hamburger-inner,
.hamburger.is-active .hamburger-inner::before,
.hamburger.is-active .hamburger-inner::after {
  background-color: var(--k700);
}

.hamburger-inner::before,
.hamburger-inner::after {
  content: "";
  display: block;
  height: 100%;
}

.hamburger-inner::before {
  top: -400%;
}

.hamburger-inner::after {
  bottom: -400%;
}

.hamburger--squeeze .hamburger-inner {
  transition-duration: 0.14s;
  transition-timing-function: cubic-bezier(0.55, 0.055, 0.675, 0.19);
}

.hamburger--squeeze .hamburger-inner::before {
  transition:
    top 0.14s 0.21s ease,
    opacity 0.14s ease;
}

.hamburger--squeeze .hamburger-inner::after {
  transition:
    bottom 0.14s 0.21s ease,
    transform 0.14s cubic-bezier(0.55, 0.055, 0.675, 0.19);
}

.hamburger--squeeze.is-active .hamburger-inner {
  transform: rotate(45deg);
  transition-delay: 0.21s;
  transition-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
}

.hamburger--squeeze.is-active .hamburger-inner::before {
  top: 0;
  opacity: 0;
  transition:
    top 0.14s ease,
    opacity 0.14s 0.21s ease;
}

.hamburger--squeeze.is-active .hamburger-inner::after {
  bottom: 0;
  transform: rotate(-90deg);
  transition:
    bottom 0.14s ease,
    transform 0.14s 0.21s cubic-bezier(0.215, 0.61, 0.355, 1);
}

/* =========================================================
 * 모바일 헤더 (≤ 1200px)
 * - 드롭다운 메뉴
 * ========================================================= */
@media (min-width: 0px) and (max-width: 1200px) {
  :root {
    --header-offset: var(--header-height);
  }

  header,
  header.is-scrolled {
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--white);
    overflow: visible;
    border-radius: 0;
  }

  header::after {
    display: none;
  }

  .h_logo,
  .header_in_wrap .header_link,
  .hamburger {
    position: relative;
    z-index: 3;
  }

  .hamburger-box {
    width: min(30px, 8vw);
    height: auto;
    aspect-ratio: 3 / 2;
  }

  .header_in_wrap .header_link {
    display: flex;
  }

  .link_img {
    width: 40px;
  }

  header .header_in_wrap,
  header.is-scrolled .header_in_wrap {
    height: var(--header-height);
    gap: 10px;
    align-items: center;
    justify-content: space-between;
  }

  .header_in_wrap .h_logo {
    flex-shrink: 0;
    height: min(3.2rem, 10vw);
  }

  .header_in_wrap .h_logo a {
    display: block;
    height: 100%;
  }

  .header_in_wrap .h_logo img {
    width: auto;
    height: 100%;
    max-width: none;
  }

  /* ============ 모바일 드롭다운 메뉴 ============ */
  .header_in_wrap nav {
    display: grid;
    grid-template-rows: 0fr;
    position: absolute;
    top: var(--header-height);
    left: calc(min(40px, 4vw) * -1);
    right: calc(min(40px, 4vw) * -1);
    width: auto;
    height: auto;
    margin-left: 0;
    transform: none;
    z-index: 1;
    background: var(--white);
    border-radius: 0;
    border-top: 0;
    overflow: hidden;
    pointer-events: none;
    transition: grid-template-rows 0.35s cubic-bezier(0.215, 0.61, 0.355, 1);
    box-shadow: none;
  }

  body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 999;
    background: rgba(3, 7, 18, 0.45);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition:
      opacity 0.35s ease,
      visibility 0.35s ease;
  }

  body.is-menu-open::before {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  header:has(nav.menu_open),
  header.is-scrolled:has(nav.menu_open) {
    border-radius: 0;
  }

  header:has(nav.menu_open) .header_in_wrap::after {
    content: "";
    position: absolute;
    left: calc(min(40px, 4vw) * -1);
    right: calc(min(40px, 4vw) * -1);
    top: 100%;
    z-index: 4;
    height: 36px;
    pointer-events: none;
    background: linear-gradient(to bottom, rgba(3, 7, 18, 0.05), rgba(3, 7, 18, 0));
  }

  header.is-scrolled .header_in_wrap nav {
    top: var(--header-height);
  }

  .header_in_wrap nav.menu_open {
    grid-template-rows: 1fr;
    pointer-events: auto;
  }

  .header_in_wrap nav .gnb {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    min-height: 0;
    overflow: hidden;
    font-size: min(18px, 4.2vw);
    gap: 0;
  }

  .header_in_wrap nav .gnb li {
    width: 100%;
    height: auto;
  }

  .header_in_wrap nav .gnb a {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: auto;
    padding: min(18px, 4vw) min(24px, 5vw);
    font-size: min(18px, 4.2vw);
    line-height: 1.4;
    color: var(--k700);
    text-align: center;
    border-bottom: 1px solid #e4e4e4;
    transition:
      background 0.28s ease,
      color 0.28s ease;
  }

  .header_in_wrap nav .gnb li:last-child a {
    border-bottom: none;
  }

  .header_in_wrap nav .gnb li a:hover {
    color: var(--k700);
    background: transparent;
  }

  /* 모바일 active: 민트 배경 + 화이트 텍스트 */
  .header_in_wrap nav .gnb li.active a,
  .header_in_wrap nav .gnb li a.active,
  .header_in_wrap nav .gnb li.active a:hover,
  .header_in_wrap nav .gnb li a.active:hover {
    color: var(--white);
    background: var(--m-main);
  }

  .header_in_wrap nav .gnb li.active a::before,
  .header_in_wrap nav .gnb li a.active::before {
    display: none;
  }

  /* 모바일에서는 데스크탑 밑줄 효과 비활성화 */
  .header_in_wrap nav .gnb a::after {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  header,
  .header_in_wrap,
  .header_in_wrap nav,
  body::before {
    transition: none;
  }
}