:root {
  --navy: #29294f;
  --navy-deep: #1c1d38;
  --blue: #315e94;
  --red: #a73c3c;
  --ink: #171923;
  --gray-700: #555b66;
  --gray-500: #8a8e96;
  --gray-300: #d8dae0;
  --gray-200: #e7e8ec;
  --gray-100: #f4f5f7;
  --white: #fff;
  --header-height: 86px;
  --content-width: 1480px;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  color: var(--ink);
  background: var(--white);
  font-family: "Pretendard", "Noto Sans KR", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

a,
button {
  -webkit-tap-highlight-color: transparent;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: -60px;
  left: 20px;
  z-index: 9999;
  padding: 14px 20px;
  color: var(--white);
  background: var(--navy-deep);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  position: relative;
  z-index: 100;
  height: var(--header-height);
  border-bottom: 1px solid var(--gray-200);
  background: var(--white);
}

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 64px), var(--content-width));
  height: 100%;
  margin: 0 auto;
}

.site-logo {
  width: 255px;
}

.site-logo a,
.site-logo img {
  display: block;
  width: 100%;
}

.main-nav {
  position: absolute;
  top: 0;
  left: 50%;
  height: 100%;
  transform: translateX(-50%);
}

.main-menu {
  display: flex;
  justify-content: center;
  height: 100%;
}

.main-menu-item {
  display: flex;
  align-items: center;
  height: 100%;
}

.main-menu-item > a {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 clamp(15px, 1.55vw, 30px);
  color: var(--ink);
  font-size: clamp(18px, 1.15vw, 20px);
  font-weight: 600;
  letter-spacing: -0.03em;
  white-space: nowrap;
}

.main-menu-item > a::after {
  position: absolute;
  right: 24px;
  bottom: 0;
  left: 24px;
  height: 3px;
  background: var(--navy);
  content: "";
  opacity: 0;
  transform: scaleX(0);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.main-menu-item:hover > a,
.main-menu-item:focus-within > a {
  color: var(--navy);
}

.main-menu-item:hover > a::after,
.main-menu-item:focus-within > a::after {
  opacity: 1;
  transform: scaleX(1);
}

.sub-menu-wrap {
  position: absolute;
  top: var(--header-height);
  right: 0;
  left: 0;
  height: 0;
  overflow: hidden;
  border-bottom: 0 solid var(--gray-300);
  background: var(--white);
  opacity: 0;
  visibility: hidden;
  transition: height 0.2s ease, opacity 0.2s ease, visibility 0.2s ease, border-width 0.2s ease;
}

.main-menu-item:hover .sub-menu-wrap,
.main-menu-item:focus-within .sub-menu-wrap {
  height: 58px;
  border-bottom-width: 1px;
  opacity: 1;
  visibility: visible;
}

.sub-menu {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: nowrap;
  gap: clamp(20px, 2.7vw, 40px);
  width: min(calc(100% - 64px), var(--content-width));
  height: 100%;
  margin: 0 auto;
}

.sub-menu a {
  position: relative;
  display: block;
  padding: 8px 0;
  color: var(--gray-700);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.025em;
  white-space: nowrap;
}

.sub-menu a::before {
  position: absolute;
  bottom: 3px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--navy);
  content: "";
  transform: scaleX(0);
  transition: transform 0.2s ease;
}

.sub-menu a:hover,
.sub-menu a:focus {
  color: var(--navy);
}

.sub-menu a:hover::before,
.sub-menu a:focus::before {
  transform: scaleX(1);
}

.menu-button {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  gap: 6px;
  width: 48px;
  height: 48px;
  margin-left: auto;
}

.menu-button span {
  display: block;
  width: 27px;
  height: 2px;
  background: var(--navy);
  transition: width 0.2s ease;
}

.menu-button span:nth-child(2) {
  width: 20px;
}

.menu-button:hover span:nth-child(2),
.menu-button:focus-visible span:nth-child(2) {
  width: 27px;
}

.site-map {
  position: fixed;
  inset: 0;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.site-map.is-open {
  opacity: 1;
  visibility: visible;
}

.site-map-backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background: rgba(16, 17, 31, 0.68);
}

.site-map-panel {
  position: absolute;
  top: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  width: min(820px, 82vw);
  height: 100%;
  background: var(--white);
  transform: translateX(100%);
  transition: transform 0.35s ease;
}

.site-map.is-open .site-map-panel {
  transform: translateX(0);
}

.site-map-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100px;
  padding: 0 clamp(28px, 5vw, 66px);
  border-bottom: 1px solid var(--gray-200);
}

.site-map-logo {
  display: block;
  width: 164px;
}

.site-map-logo img {
  display: block;
  width: 100%;
}

.site-map-close {
  position: relative;
  width: 48px;
  height: 48px;
}

.site-map-close span {
  position: absolute;
  top: 23px;
  left: 10px;
  width: 29px;
  height: 2px;
  background: var(--navy);
}

.site-map-close span:first-child {
  transform: rotate(45deg);
}

.site-map-close span:last-child {
  transform: rotate(-45deg);
}

.site-map-body {
  flex: 1;
  overflow-y: auto;
  padding: 42px clamp(28px, 5vw, 66px);
}

.site-map-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 34px 56px;
}

.site-map-list > li {
  min-width: 0;
}

.site-map-title {
  display: block;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--navy);
  color: var(--navy);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.035em;
}

.site-map-list ul {
  padding-top: 8px;
}

.site-map-list ul a {
  display: block;
  padding: 8px 0;
  color: var(--gray-700);
  font-size: 17px;
  font-weight: 500;
}

.site-map-list ul a:hover,
.site-map-list ul a:focus {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.site-map-foot {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px clamp(28px, 5vw, 66px);
  border-top: 1px solid var(--gray-200);
  color: var(--gray-700);
  font-size: 13px;
  font-weight: 500;
}

.site-map-foot a {
  color: var(--navy);
  font-weight: 700;
}

.site-footer {
  border-top: 1px solid var(--gray-300);
  background: var(--white);
}

.footer-inner {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr) auto;
  align-items: center;
  width: min(calc(100% - 64px), var(--content-width));
  min-height: 128px;
  margin: 0 auto;
}

.footer-logo {
  padding-right: 32px;
}

.footer-logo img {
  display: block;
  width: 218px;
}

.footer-information {
  display: flex;
  gap: 22px;
  padding-left: 32px;
  border-left: 1px solid var(--gray-300);
  color: var(--gray-700);
  font-size: 13px;
  font-style: normal;
  font-weight: 500;
}

.footer-information address {
  font-style: normal;
}

.footer-information a {
  color: var(--navy);
  font-weight: 700;
}

.copyright {
  color: var(--gray-500);
  font-size: 12px;
  font-weight: 500;
}

@media (max-width: 1180px) {
  :root {
    --header-height: 78px;
  }

  .header-inner {
    width: min(calc(100% - 40px), var(--content-width));
  }

  .site-logo {
    width: 231px;
  }

  .main-menu-item > a {
    padding: 0 10px;
    font-size: 17px;
  }

  .main-menu-item > a::after {
    right: 12px;
    left: 12px;
  }

  .sub-menu {
    gap: 18px;
    width: calc(100% - 24px);
  }

  .sub-menu a {
    font-size: 15px;
  }

  .footer-inner {
    width: min(calc(100% - 40px), var(--content-width));
  }
}

@media (max-width: 1040px) {
  .header-inner {
    width: calc(100% - 32px);
  }

  .site-logo {
    width: 214px;
  }

  .main-menu-item > a {
    padding: 0 8px;
    font-size: 16px;
  }

  .sub-menu {
    gap: 14px;
    width: calc(100% - 16px);
  }

  .sub-menu a {
    font-size: 14px;
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 72px;
  }

  .header-inner {
    display: flex;
    justify-content: space-between;
  }

  .main-nav {
    display: none;
  }

  .menu-button {
    margin-left: 0;
  }

  .site-map-panel {
    width: min(620px, 90vw);
  }

  .footer-inner {
    grid-template-columns: 220px 1fr;
    padding: 26px 0;
  }

  .footer-information {
    flex-direction: column;
    gap: 6px;
  }

  .copyright {
    grid-column: 2;
    margin-top: 8px;
    padding-left: 32px;
  }
}

@media (max-width: 640px) {
  .header-inner {
    width: calc(100% - 32px);
  }

  .site-logo {
    width: 210px;
  }

  .menu-button {
    width: 42px;
    height: 42px;
  }

  .site-map-panel {
    width: 100%;
  }

  .site-map-head {
    height: 76px;
    padding: 0 20px;
  }

  .site-map-logo {
    width: 142px;
  }

  .site-map-body {
    padding: 26px 20px;
  }

  .site-map-list {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .site-map-title {
    padding-bottom: 10px;
    font-size: 19px;
  }

  .site-map-list ul {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 14px;
  }

  .site-map-list ul a {
    font-size: 16px;
  }

  .site-map-foot {
    display: block;
    padding: 18px 20px;
    font-size: 11px;
  }

  .site-map-foot a {
    display: block;
    margin-top: 5px;
    font-size: 13px;
  }

  .footer-inner {
    display: block;
    width: calc(100% - 32px);
    padding: 28px 0;
  }

  .footer-logo {
    padding-right: 0;
  }

  .footer-logo img {
    width: 184px;
  }

  .footer-information {
    gap: 4px;
    margin-top: 20px;
    padding: 18px 0 0;
    border-top: 1px solid var(--gray-300);
    border-left: 0;
    font-size: 12px;
    line-height: 1.6;
  }

  .copyright {
    margin-top: 16px;
    padding-left: 0;
    font-size: 11px;
  }
}