@import url('fonts.css');

:root {
  /* font */
  --main-font: 'Pretendard', sans-serif;

  /* color */
  --bg-color: #fefefe;

  --main-color: #102033;
  --sub-color: #33475B;
  --desc-color: #627182;

  --brand-darkblue: #06182B;
  --brand-lightblue: #34C3E8;
  --brand-lightgray: #F2F5F7;

  --border-color: #DBE2E8;
}

*, *::before, *::after {
  margin: 0; padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%; 
}

body {
  min-width: 320px;
  font-family: var(--main-font);
  line-height: 1.35; 
  word-break: keep-all;
  background-color: #fefefe;
  
  overflow-y: scroll; 
}

img, video, canvas, svg, iframe {
  display: block;
  max-width: 100%;
  height: auto;
}

ul, ol, li { list-style: none; }
a { text-decoration: none; color: inherit; }
address {font-style: normal;}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* 스크롤바 */
body::-webkit-scrollbar {width: 8px; /* 스크롤바 두께 */}
body::-webkit-scrollbar-track {background: #f1f1f1; /* 스크롤바 배경 */}
body::-webkit-scrollbar-thumb {
  background: #ccc; /* 스크롤바 바 컬러 */
  border-radius: 4px;
}
body::-webkit-scrollbar-thumb:hover {background: #b3b3b3;}


/* 스크롤 영역*/
.scroll-area--y {
  height: 100%;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch; /* 모바일 부드러운 스크롤 최적화 */
}

.scroll-area--x {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}


/* 헤더 */
.header {border-bottom: 1px solid var(--border-color);}

.util {
  padding: 5px 0;
  display: flex;
  justify-content: flex-end; align-items: center;
}
.util__link {font-size: 13px; color: var(--desc-color);}
.util__link:last-child {color: var(--sub-color); font-weight: 500;}
.util__link:not(:first-child)::before {
  content: '';
  display: inline-block;
  min-height: 10px; width: 1px;
  background-color: var(--border-color);
  margin: 0 10px;
}
.util__link:hover {text-decoration: underline;}
.util__link button {border: 0; background: none; padding: 0; font: inherit; color: inherit; cursor: pointer;}
.util__link button:hover {text-decoration: underline;}
.util__link.util__link--admin {color: var(--brand-darkblue); font-weight: 700;}

/* 명함 자동 입력 (Exhibition, 관리자만 보임) */
.card-reader {margin-bottom: 28px; padding: 20px; border: 1px solid var(--border-color); border-left: 4px solid var(--brand-lightblue); border-radius: 12px; background: #fff;}
.card-reader__head {display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; margin-bottom: 14px;}
.card-reader__head strong {font-size: 16px; color: var(--main-color);}
.card-reader__badge {padding: 2px 8px; border-radius: 4px; background: var(--brand-darkblue); color: #fff; font-size: 11px; font-weight: 700; letter-spacing: .5px;}
.card-reader__desc {flex-basis: 100%; font-size: 13px; color: var(--desc-color);}
.card-reader__body {display: flex; gap: 16px; align-items: stretch;}
.card-reader__drop {flex: 1; min-width: 0; padding: 22px 16px;}
/* 촬영 버튼은 터치 기기에서만 (PC는 파일 선택/끌어다 놓기) */
.card-reader__camera {display: none; align-items: center; justify-content: center; gap: 8px; height: 52px; border-radius: 10px; background: var(--brand-darkblue); color: #fff; font-size: 16px; font-weight: 600; cursor: pointer;}
.card-reader__camera i {font-size: 20px;}
.card-reader__camera-input {position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none;}
.card-reader.is-busy .card-reader__camera {opacity: .5; pointer-events: none;}
@media (hover: none) and (pointer: coarse) {
  .card-reader__body {flex-direction: column;}
  .card-reader__camera {display: flex;}
  .card-reader__drag {display: none;}
}
.card-reader__result {flex: 1; min-width: 0; display: flex; gap: 14px; align-items: center; padding: 12px; border-radius: 10px; background: var(--brand-lightgray);}
.card-reader__result[hidden] {display: none;}
.card-reader__result img {width: 140px; max-height: 96px; object-fit: contain; border-radius: 6px; background: #fff; box-shadow: 0 1px 3px rgba(6, 24, 43, .12);}
.card-reader__info {min-width: 0;}
.card-reader__status {font-size: 14px; font-weight: 500; color: var(--main-color);}
.card-reader__usage {margin-top: 4px; font-size: 12px; color: var(--desc-color); word-break: break-all;}
.card-reader__download {display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border: 1px solid var(--brand-darkblue); border-radius: 6px; background: #fff; color: var(--brand-darkblue); font-size: 13px; font-weight: 600;}
.card-reader__download:hover {background: var(--brand-darkblue); color: #fff;}
.card-reader__download[hidden] {display: none;}
/* 사진을 고른 뒤에는 고르는 칸 대신 진행/결과만 보임. 다시 고르기는 결과 안의 버튼으로 */
.card-reader.is-busy .card-reader__drop, .card-reader.is-done .card-reader__drop, .card-reader.is-error .card-reader__drop,
.card-reader.is-busy .card-reader__camera, .card-reader.is-done .card-reader__camera, .card-reader.is-error .card-reader__camera {display: none;}
.card-reader__actions {display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px;}
.card-reader.is-busy .card-reader__actions {display: none;}
.card-reader__again {display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border: 1px solid var(--border-color); border-radius: 6px; background: #fff; color: var(--main-color); font-size: 13px; font-weight: 600; cursor: pointer;}
.card-reader__again:hover {border-color: var(--brand-darkblue);}
.card-reader__again--camera {display: none;}
@media (hover: none) and (pointer: coarse) {
  .card-reader__again--camera {display: inline-flex;}
}
.card-reader.is-busy .card-reader__status::before {content: ''; display: inline-block; width: 12px; height: 12px; margin-right: 8px; border: 2px solid var(--brand-lightblue); border-right-color: transparent; border-radius: 50%; vertical-align: -1px; animation: card-spin .8s linear infinite;}
.card-reader.is-done .card-reader__status {color: #067647;}
.card-reader.is-error .card-reader__status {color: #b42318;}
@keyframes card-spin {to {transform: rotate(360deg);}}
@media screen and (max-width: 800px) {
  .card-reader__body {flex-direction: column;}
  .card-reader__result img {width: 110px;}
}

/* 로그인 (관리자 전용) */
.login-section {padding: 100px 0 140px; background-color: var(--brand-lightgray);}
.login-box {max-width: 400px; margin: 0 auto; padding: 44px 40px 40px; background: #fff; border: 1px solid var(--border-color); border-radius: 16px;}
.login-box__title {font-size: 28px; font-weight: 700; color: var(--main-color); text-align: center;}
.login-box__desc {margin: 6px 0 28px; font-size: 14px; color: var(--desc-color); text-align: center;}
.login-box__error {margin-bottom: 18px; padding: 10px 14px; border-radius: 8px; background: #fdecec; color: #b42318; font-size: 14px;}
.login-box label {display: block; margin-bottom: 6px; font-size: 14px; font-weight: 600; color: var(--sub-color);}
.login-box input {width: 100%; height: 46px; margin-bottom: 18px; padding: 0 14px; border: 1px solid var(--border-color); border-radius: 8px; font: inherit;}
.login-box input:focus {outline: 2px solid rgba(52, 195, 232, .35); border-color: var(--brand-lightblue);}
.login-box button {width: 100%; height: 48px; margin-top: 6px; border: 0; border-radius: 8px; background: var(--brand-darkblue); color: #fff; font: inherit; font-weight: 600; cursor: pointer;}
.login-box button:hover {background: var(--sub-color);}
@media screen and (max-width: 800px) {
  .login-section {padding: 60px 0 80px;}
  .util {flex-wrap: wrap; row-gap: 2px;}
  .util__link {font-size: 12px; white-space: nowrap;}
  .util__link:not(:first-child)::before {margin: 0 7px;}
  .login-box {padding: 32px 24px;}
}

.gnb {
  display: flex; 
  justify-content: space-between; align-items: center;
  min-height: 50px;
}

.gnb .gnb__logo {}
.gnb .gnb__logo a {}
.gnb .gnb__logo a img {width: 150px;}

.gnb .gnb__menu {position: relative;}
.gnb .gnb__menu .gnb__list {
  display: flex; align-items: center;
}
.gnb .gnb__menu .gnb__list .gnb__item {}
.gnb .gnb__menu .gnb__list .gnb__item .gnb__link {
  display: flex;
  align-items: center; justify-content: center;
  min-height: 50px;
  width: 125px; 
  color: var(--sub-color);
}
.gnb .gnb__menu .gnb__list .gnb__item .gnb__link.active,
.gnb .gnb__menu .gnb__list .gnb__item .gnb__link:hover {
  transition: all 0.15s ease;
  box-shadow: inset 0 -3px 0 0 var(--brand-lightblue);
}

.gnb .gnb__menu .gnb__sub-menu {
  position: absolute;
  display: none;
  border: 1px solid #000; background-color: #555;
  border-radius: 0 0 15px 15px;
  box-shadow: 0 3px 0 rgba(0, 0, 0, 1); 
  z-index: 3;
}
.gnb .gnb__menu:hover .gnb__sub-menu {
  display: flex;
}
.gnb .gnb__menu .gnb__sub-menu .gnb__sub-list {
  width: 135px;
  display: flex; justify-content: center; align-items: center;
  flex-direction: column;
  gap: 10px;
  padding: 15px 0;
}
.gnb .gnb__menu .gnb__sub-menu .gnb__sub-list .gnb__sub-item {}
.gnb .gnb__menu .gnb__sub-menu .gnb__sub-list .gnb__sub-item .gnb__sub-link {color: #;}
.gnb .gnb__menu .gnb__sub-menu .gnb__sub-list .gnb__sub-item .gnb__sub-link:hover {color: #; text-decoration: underline;}

/* 모바일 화면 메뉴 */
.mobile-nav {display: none;}
.mobile-nav__checkbox {display: none;}
.mobile-nav__checkbox + label {
  position: relative;
  display: block; width: 25px; height: 18px;
  z-index: 5;
}
.mobile-nav__checkbox + label > span {
  position: absolute; 
  display: block; height: 3px; width: 100%;
  background: var(--sub-color);
  border-radius: 30px;
  transition: all 0.2s ease;
} 
.mobile-nav__checkbox + label > span:nth-child(1) {top: 0;}
.mobile-nav__checkbox + label > span:nth-child(2) {top: 50%; transform: translateY(-50%);}
.mobile-nav__checkbox + label > span:nth-child(3) {bottom: 0;}

.mobile-nav__checkbox + label + .mobile-nav__wrap {
  position: fixed;
  width: 100%; height: 100%;
  max-width: 320px; 
  background-color: #fff;
  border-left: 1px solid var(--border-color); 
  top: 0; right: -320px; 
  padding: 50px 25px 25px; 
  z-index: 4;
  box-shadow: -2px 0 5px rgba();
  transition: all 0.2s ease;
}
.mobile-nav__wrap {}
.mobile-nav__scroll {}
.mobile-nav__list {
  display: flex; align-items: center; justify-content: center; flex-direction: column;
  gap: 7.5px;
  margin-bottom: 18.5px;
}
.mobile-nav__item {text-align: center;}
.mobile-nav__link {
  color: var(--sub-color);
  font-size: 15px;
}
.mobile-nav__link.mobile-nav__title {
  font-size: 16px;
  color: var(--main-color); font-weight: 600;
}

.mobile-nav__checkbox:checked + label > span:nth-child(1) {top: 50%; transform: translateY(-50%) rotate(45deg);}
.mobile-nav__checkbox:checked + label > span:nth-child(2) {display: none;}
.mobile-nav__checkbox:checked + label > span:nth-child(3) {bottom: 50%; transform: translateY(50%) rotate(-45deg);}

.mobile-nav__checkbox:checked + label + .mobile-nav__wrap {right: 0;}



/* ===================================================
   1. 공통 레이아웃 (구조 안정성 최적화)
=================================================== */
.container {
  width: min(1280px, calc(100% - 50px));
  margin-inline: auto;
}


main section {padding: 80px 0;}
main section:last-of-type {padding-bottom: 145px;}


.btn {
  transition: all 0.2s ease;
  min-width: 100px;
  min-height: 50px;
  padding: 10px 25px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12.5px;
  border-radius: 1px;
  font-size: 15px;
}
.btn i {transition: all 0.2s ease;}
.btn:hover i {transform: translateX(3.5px);}

button {
  cursor: pointer;
  border: 0;
  background-color: transparent;
}


label {
  color: var(--sub-color);
  font-size: 14px; font-weight: 600;
}
.required {color: red;}
input:not([type="file"]),
select,
textarea {
  width: 100%;
  min-height: 35px;
  padding: 10px 7.5px;
  background-color: #fff;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--sub-color);
  font-size: 14px;
  transition: all 0.2s ease;
  appearance: none;
  -webkit-appearance: none;
}
select {
  padding-right: 24.5px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M3 4.5 L6 7.5 L9 4.5' fill='none' stroke='%23666' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 7.5px center;
  background-size: 12px;
}
::placeholder {
  color: var(--desc-color);
}
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: none;
  border-color: var(--desc-color);
}
input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  min-width: 16px;
  width: 16px;
  aspect-ratio: 1/1; 
  min-height: auto;
  padding: 0;
  position: relative;
  vertical-align: middle;
  transition: all 0.2s ease;
  cursor: pointer;
  margin-right: 3px;
  background-color: #fff;
}
input[type="checkbox"]:hover { border-color: #888;}
input[type="checkbox"]:checked {border-color: var(--desc-color);}
input[type="checkbox"]::after {
  content: '';
  position: absolute; 
  display: block;
  opacity: 0;         
  transition: opacity 0.1s ease;
}
input[type="checkbox"]:checked::after {opacity: 1;} 
input[type="checkbox"] { border-radius: 3px; }
input[type="checkbox"]::after {
  width: 4px; height: 8px;  
  border: solid var(--sub-color);   
  border-width: 0 2px 2px 0;
  top: 2px; left: 5px;  
  transform: rotate(45deg);
}
textarea {
  min-height: 135px;
  resize: vertical;
}
/* 첨부: 투명한 file input이 박스 전체를 덮음 (클릭/끌어다 놓기는 브라우저 기본 동작) */
.file-upload {
  position: relative;
  padding: 28px 20px;
  border: 1.5px dashed #cbd5de;
  border-radius: 10px;
  background: var(--brand-lightgray);
  text-align: center;
  transition: border-color .2s, background-color .2s;
}
.file-upload:hover, .file-upload.is-drag {border-color: var(--brand-lightblue); background: #eefafd;}
.file-upload:focus-within {outline: 2px solid rgba(52, 195, 232, .35); outline-offset: 2px;}
.file-upload input[type="file"] {position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer;}
.file-upload__empty i {font-size: 30px; color: var(--brand-lightblue);}
.file-upload__title {margin-top: 6px; font-size: 15px; color: var(--sub-color);}
.file-upload__title strong {color: var(--brand-darkblue); text-decoration: underline; text-underline-offset: 3px;}
.file-upload__hint {margin-top: 6px; font-size: 12px; color: var(--desc-color);}
.file-upload.has-file {padding: 14px 16px; border-style: solid; background: #fff; text-align: left;}
.file-upload__file {display: flex; align-items: center; gap: 10px;}
.file-upload__file[hidden], .file-upload__empty[hidden] {display: none;}
.file-upload__file > i {font-size: 22px; color: var(--brand-darkblue);}
.file-upload__name {flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 14px; font-weight: 500; color: var(--main-color);}
.file-upload__size {font-size: 12px; color: var(--desc-color); white-space: nowrap;}
.file-upload__remove {position: relative; z-index: 1; display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; border: 0; border-radius: 50%; background: var(--brand-lightgray); color: var(--sub-color); cursor: pointer;}
.file-upload__remove:hover {background: #fdecec; color: #b42318;}


/* ===================================================
   2. 섹션 헤더 & 브레드크럼 영역
=================================================== */
.section-header {
  display: flex; 
  justify-content: space-between; 
  align-items: baseline;
}

.section-header__title {
  color: var(--main-color);
}

.breadcrumb {
  color: rgba(255, 255, 255, .65);
  font-size: 11px;
  font-weight: 300;

  padding-bottom: 25px;
}
.breadcrumb__list {
  display: flex; 
  align-items: center;
}
.breadcrumb__item:not(:first-child)::before {
  content: "\003E"; 
  padding: 0 8px;
  font-size: 10px;
  speak: none;
}
.breadcrumb__link {transition: all 0.2s ease;}
.breadcrumb__link:hover {color: rgba(255, 255, 255, .85);}

/* ===================================================
   3. 콘텐츠 그룹 영역 (독립성 강화)
=================================================== */
.content-group {
  margin-bottom: 35px; 
}
.content-group:last-child {
  margin-bottom: 0;
}

.content-group__header {
  display: flex; 
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 15px;  
}
.content-group__title {
  display: flex; flex-direction: column;
}
.content-group__title--point {
  font-size: 14px;
  color: var(--brand-lightblue);
}
.content-group__title--main {
  font-size: 36px; 
  font-weight: 800; 
  color: var(--main-color);
  margin-bottom: 15px;
}
.content-group__title--sub {
  font-size: 18px;
  font-weight: normal;
  color: var(--sub-color);
}

.content-group__more {
  color: #; 
  font-size: 14px;
  transition: color 0.15s ease; 
}

.content-group__more:hover {
  color: #;
}

.content-group__body {
  color: var(--sub-color);
}




/* ===================================================
   1. 메인페이지 (Hero Section)
=================================================== */
.bg-blur-dim {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  backdrop-filter: blur(2px);
  z-index: 1;
}

.hero {
  position: relative; 
  overflow: hidden;

  background: 
    linear-gradient(to right, #06182B, transparent),
    url(/images/main_visu01.png);
  background-repeat: no-repeat !important;
  background-size: cover !important;
  background-position: center !important;
}

.hero__container {
  display: flex; 
  flex-direction: column;
  justify-content: center;
  gap: 35px;
  min-height: 485px;
  padding: 50px 0;
  position: relative; 
  z-index: 2;
  color: #fff;
}

.hero__title {width: 70%;}
.hero__point {color: var(--brand-lightblue);}
.hero__main {font-size: 58px; line-height: 1.125; padding: 12.5px 0;}
.hero__sub {color: var(--brand-lightgray); font-weight: 400;}
.hero__sub span {white-space: nowrap;}

.hero__btn {
  display: flex; align-items: center;
  gap: 15px;
}
.btn--products {
  background-color: #fff;
  color: var(--main-color);
}
.btn--products:hover {border-color: var(--brand-lightblue); background-color: var(--brand-lightblue);}
.btn--contact {box-shadow: inset 0px 0px 1px 1px rgba(255, 255, 255, 1);}
.btn--contact:hover {background-color: #fff; color: var(--main-color);}


.home .greeting {text-align: center; border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color);}
.home .greeting .content-group__header {justify-content: center;}

.home .products {
  background-color: var(--brand-lightgray);
}
.products__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.products__item {
  border: 1px solid var(--border-color);
  background-color: #fff;
  display: flex; flex-direction: column;
}
.product-img {
  height: 285px;
  
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;

  position: relative;
}
.product-number {
  position: absolute;

  display: flex; align-items: center; justify-content: center;
  background-color: var(--brand-darkblue);
  color: var(--brand-lightgray);
  font-size: 12px;

  width: 32px;
  aspect-ratio: 1/1;

  text-align: center;

  bottom: 0;
}

.product-info {
  display: flex; flex-direction: column;;
  justify-content: space-between;
  flex: 1;
  padding: 20px 25px 35px;
}
.product-point {
  color: var(--brand-lightblue);
  font-size: 14px;
}
.product-name {
  color: var(--main-color);
  font-weight: 700;
  font-size: 21px;
  padding: 5px 0;
}
.product-desc {
  color: var(--desc-color);
  font-size: 15px;
}

.download--catalogue {
  margin-top: 25px;
  border: 0;
  display: flex;
  align-items: center; gap: 10px;
  color: var(--sub-color);
  font-weight: 500;
  font-size: 15px;
  padding: 0;
  width: fit-content;

  transition: all 0.15s ease;
}
.download--catalogue:hover {color: var(--brand-lightblue); text-decoration: underline;}

.products__grid .btn--products {
  border: 1px solid var(--border-color);
  
  background-image: url(/images/pattern_v01.png);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
}
.products__grid .btn--products:hover {
  background-image: url(/images/pattern_v01\(w\).png);
}


.home .partner {background-color: #fff;}
.home .partner .content-group__header {
  justify-content: center;
  text-align: center;
}
.home .partner .content-group__body {
  display: flex; align-items: center; justify-content: center;
}


.contact {
  background-color: #0E9BC1;
  padding-bottom: 80px !important;
}
.contact .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.contact .content-group {margin-bottom: 0;}
.contact .content-group__title--point {color: var(--main-color);}
.contact .content-group__title--main {color: #fff; font-size: 56px;}
.contact .content-group__body {color: #fff;}
.contact .btn--contact {
  background-color: #fff;
  color: var(--main-color);
  font-weight: 500;
  box-shadow: none;
}
.contact .btn--contact:hover {
  background-color: var(--brand-lightblue);
}

/* ===================================================
   2. 서브페이지 (Page Banner & Layout)
=================================================== */
.sub-page {min-height: 50.15vh;}
.sub-page section:first-child {padding-top: 50px;}

.page-banner-section {
  position: relative; 
  overflow: hidden;

  background: 
    linear-gradient(to right, #06182B, transparent),
    url(/images/main_visu01.png);
  background-repeat: no-repeat !important;
  background-size: cover !important;
  background-position: center !important;
}
.page-banner-container {
  position: relative;
  z-index: 2;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: center;

  padding: 35px 0 52.5px;
}
.page-banner__title {
  color: #fff;
  line-height: 1.5;
}
.page-banner__title--point {
  font-size: 14px;
  color: var(--brand-lightblue);
}
.page-banner__title--main {
  font-size: 52px; 
  font-weight: 700;
  line-height: 1.1;
}
.page-banner__title--sub {
  color: var(--brand-lightgray);
  font-weight: 300;
  font-size: 16px;
}

.sub-nav {
  position: relative;
  z-index: 2;
  background-color: var(--bg-color);
  border-bottom: 1px solid var(--border-color);
}
.sub-nav__list {
  width: min(1280px, calc(100% - 50px));
  margin-inline: auto;

  display: flex;
  flex-wrap: wrap;
}
.sub-nav__item {}
.sub-nav__link {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 45px;
  padding: 0 15px;
  color: var(--sub-color);
  transition: all 0.15s ease;
}
.sub-nav__link:hover {
  box-shadow: inset 0 -3px 0 0 var(--brand-lightblue);
}
.sub-nav__link.active {
  color: var(--brand-lightblue);
  box-shadow: inset 0 -3px 0 0 var(--brand-lightblue);
}

.sub-page__header {
  padding: 50px 0 0;
}

.section-header__title {
  font-size: 32px; 
  color: #;
}

/* greeting */
.sub-page .message {}
.sub-page .message .content-group__title {
  border-bottom: 1px solid var(--desc-color);
  margin-bottom: 10px;
}
.sub-page .message .content-group__body {
  padding-top: 10px;
}
.main-message {
  padding-bottom: 10px;
  color: var(--sub-color);
  font-size: 21px;
  font-weight: +500;
}
.sub-message {
  color: var(--desc-color);
}

.sub-page .products {background-color: var(--brand-lightgray);}
.sub-page .products .content-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 5rem;
}
.sub-page .products .content-group__title {
  justify-content: center;
}
.sub-page .products .products__item,
.sub-page .mission .mission__item {
  background-color: transparent;
  border: 0;
  border-bottom: 1px solid var(--border-color);

  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 25px;
  padding: 20px 0;
}
.sub-page .products .products__item:first-child,
.sub-page .mission .mission__item:first-child {border-top: 1px solid var(--desc-color);}
.sub-page .products .products__item:last-child,
.sub-page .mission .mission__item:last-child {border-bottom: 1px solid var(--desc-color);}
.sub-page .products .products__item .product__number,
.sub-page .mission .mission__item .mission__number {
  color: var(--brand-lightblue);
  font-size: 12px;
}
.sub-page .products .products__item .product__name,
.sub-page .mission .mission__item .mission__name {font-size: 18px;}

.sub-page .vision {background-color: var(--brand-darkblue);}
.sub-page .vision .content-group__title {
  text-align: center;
  justify-content: center;
}
.sub-page .vision .content-group__title--main {color: #fff; font-style: italic;}

.sub-page .motto {
  background-color: var(--brand-lightgray);
  padding-bottom: 80px;
}
.sub-page .motto .content-group__title--main {
  font-size: 64px;
  line-height: 1.125;
}
.sub-page .motto .content-group__title--main span {
  color: var(--brand-lightblue);
  white-space: nowrap;
}
.film {border-bottom: 1px solid var(--border-color);}
.film .container {
  width: min(900px, calc(100% - 50px));
  margin-inline: auto;
}
.film .film-tab {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding: 0 11px;
}
.film .film-tab p {
  font-size: 13px;
  color: var(--desc-color);
  padding-right: 7.5px;
}
.btn--film {
  border: 1px solid var(--border-color);
  border-bottom: 0;
  border-radius: 1px 1px 0 0;
  color: var(--desc-color);
  padding: 7px 18.5px;
}
.btn--film:hover {color: var(--sub-color);}
.btn--film.active {
  background-color: var(--brand-darkblue);
  border-color: var(--brand-darkblue);
  color: #fff;
  font-weight: 600;
}
.btn--film.active:hover {color: #fff;}
.film video {
  width: 100%;
  aspect-ratio: 1.82 / 1;
  border-radius: 3px;
}
.history__item {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}
.history__item:first-child {border-top: 2px solid var(--brand-lightblue);}
.history__item:last-child {border-bottom: 2px solid var(--brand-lightblue);}
.history__year {
  font-size: 24px;
  color: var(--brand-lightblue);
  min-width: 90px; height: 100%;
  text-align: center;
}
.history__info {
  padding: 15px;
  border-left: 1px solid var(--border-color);
}
.history__info li {
  display: flex;
  align-items: center;
  gap: 1rem;
  height: 100%;
  padding-bottom: 3.5px;
  font-size: 15px;
}
.history__info li:last-child {
  padding-bottom: 0;
}
.history__date {
  color: var(--brand-lightblue);
  font-size: 14px;
  font-weight: 500;
  min-width: 55px;
}
.history__desc {color: var(--sub-color);}

.org img {margin: 0 auto; min-width: 800px;}

.certificate .content-group {
  display: flex;
  align-items: center; justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
}
.certificate .content-group img {width: calc((100% - 2rem) / 2);}

.map .content-group {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  margin-bottom: 50px;
  border: 1px solid var(--border-color);
  background-color: var(--brand-lightgray);
}
.map .content-group__title {
  padding: 25px;
  display: flex; flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--border-color);
  background: 
    url(/images/pattern_v01.png),
    var(--brand-lightgray);
  background-position: center;
  background-size: cover;
}
.map__info li:not(:last-child) {padding-bottom: 10px;}
.map__item {position: relative;}
.map__item iframe {
  border: 0;
  width: 100%;
  height: 350px;
  position: relative;
  z-index: 2;
}
.map__item p {
  position: absolute;
  z-index: 1;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  color: var(--desc-color);
}

.facilities-tab {
  display: flex;
  align-items: center;
  margin-bottom: 25px;
}
.facilities-tab button {
  border: 1px solid var(--border-color);
  border-radius: 1px 1px 0 0;
  color: var(--desc-color);
  padding: 7px 18.5px;
}
.facilities-tab button:hover {color: var(--sub-color);}
.facilities-tab button.active {
  background-color: var(--brand-lightgray);
  color: var(--sub-color);
  font-weight: 500;
}
.plant__grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 15px;
}
.plant__grid ul {
  gap: 25px;
  display: grid;
  border-bottom: 1px dashed var(--border-color);
  padding-bottom: 15px;
}
.plant__grid ul:last-child {border-bottom: 0; padding-bottom: 0;}
.plant__grid li {
  position: relative;
  min-height: 300px;
  border: 1px solid var(--border-color);
  border-radius: 2px;

  background-position: center;
  background-size: cover;
}
.plant__grid li p {
  position: absolute;
  display: flex;
  align-items: center; justify-content: center; text-align: center;
  background-color: rgba(6, 24, 43, 0.5);
  bottom: 15px; left: 15px;
  padding: 5px 15px;
  border-radius: 30px;
  color: var(--brand-lightgray);
  font-size: 14px;
}
.plant-view {grid-template-columns: 1.5fr 1fr;}
.plant-inside {grid-template-columns: repeat(3, 1fr);}
.storage {grid-template-columns: repeat(4, 1fr);}
.office-view {grid-template-columns: repeat(3, 1fr);}
.manufacturing {grid-template-columns: repeat(6, 1fr);}
.manufacturing li:nth-child(1),
.manufacturing li:nth-child(2) {grid-column: span 3;}
.manufacturing li:nth-child(3),
.manufacturing li:nth-child(4),
.manufacturing li:nth-child(5) {grid-column: span 2;}

.products__main .products__item {
  display: grid;
  grid-template-columns: 1fr 2fr;
  border: 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 15px 10px;
}
.products__main .products__item:first-child {border-top: 2px solid var(--desc-color);}
.products__main .products__item:last-child {border-bottom: 2px solid var(--desc-color);}
.products__main .product-img {height: auto;}
.products__main .product-name {font-size: 27px;}
.product-note {padding-top: 20px;}
.product-note li {
  display: flex;
  flex-direction: column;
  padding-bottom: 10px;
}
.product-note li span {font-weight: 600;}
.products__main img {margin: 25px auto 0;}

.contact-globe .content-group__title {border-bottom: 1px solid var(--desc-color);}
.contact-globe .content-group__body {padding: 15px 0;}
.contact-globe .body__header {
  display: flex;
  align-items: center;
  gap: 25px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 15px;
  margin-bottom: 15px;
}
.contact-globe .flag {min-width: 100px; max-width: 100px; box-shadow: 0 1px 5px rgba( 0, 0, 0, 0.1);}
.contact-globe .body__title--main {
  font-size: 18px;
  padding-bottom: 5px;
  color: var(--sub-color);
}
.contact-globe .body__title--point {color: var(--brand-lightblue); font-size: 15px;}
.contact-globe .nation__item:not(:last-child) {
  padding-bottom: 22.5px;
}
.contact-globe .nation__item li:first-child {font-weight: 800; font-size: 18px;}
.contact-globe .nation__item li:not(:last-child) {padding-bottom: 5px;}
.contact-globe .nation__item li {
  display: flex;
  gap: 18.5px;
}
.contact-globe .nation__item li p {
  display: flex;
  gap: 5px;
  align-items: center;
}
.contact-globe .nation__item a {color: var(--brand-darkblue); text-decoration: underline; text-underline-offset: 3px;}
.contact-globe .nation__item a:hover {color: var(--brand-lightblue);}
.contact-globe .nation__item li span {font-weight: 600; font-size: 14px; white-space: nowrap;}
.contact-globe:last-of-type .content-group__body {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 50px;
}
.contact-globe a:hover {text-decoration: underline;}

.qna .container {
  width: min(900px, calc(100% - 50px));
  margin-inline: auto;
}
.qna .content-group__title{margin-bottom: 15px;}
.qna .content-group__title--main {margin-bottom: 0;}
.qna-form {
  width: 100%;
  padding: 25px;
  border: 1px solid var(--border-color);
  background-color: #fff;
  border-radius: 5px;
  box-shadow: 0 3px 3px rgba(0, 0, 0, 0.05);
}
.qna-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
}
.form__field.category, 
.form__field.subject, 
.form__field.mobile,
.form__field.tel,
.form__field.message,
.form__field.attachment {grid-column: 1 / -1;}
.category__checkbox {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 24px;
  padding-top: 5px;
  width: 100%;
}
.category__checkbox label {
  font-weight: normal;
  color: var(--sub-color);
  display: flex; align-items: center; gap: 3px;
}
.form__field.mobile,
.form__field.tel {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: 5px;
  align-content: start;
}
.form__field.mobile label,
.form__field.tel label {
  grid-column: 1 / -1;
}
.qna__footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid #dce3e9;
}
.btn--submit {
  display: inline-flex;
  min-width: 100px;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: none;
  border-radius: 4px;
  background: #0b3558;
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  transition: all 0.2s ease;
}
.btn--submit:hover {background: #1476b8;}
.btn--submit:disabled {background: #0b3558; opacity: .6; cursor: wait;}


/* ===================================================
   1. 푸터 (Footer) 영역
=================================================== */
.footer {
  background-color: var(--brand-darkblue); 
  color: var(--bg-color); 
  font-size: 15px;
  border-top: 1px solid #000
}

/* 푸터 하단 정보 영역 */
.footer__bottom {
  display: flex; 
  align-items: center; 
  justify-content: space-between; 
  padding: 25px 0;

  font-size: 14px;
  color: rgba(255, 255, 255, .8);
  font-weight: 300;
}

.footer__info ul {
  padding: 12.5px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
}
.footer__info ul:first-child {padding-top: 0;}
.footer__info ul li:first-child {
  font-weight: 500;
}
.footer__info p {font-size: 13px; padding-top: 12.5px; color: rgba(255, 255, 255, .5);}

.footer__email {
  display: flex; align-items: center; gap: 5px;
  font-weight: 500;
}

.footer__logo {width: 185px;}

/* ===================================================
   탑/바텀 고정 네비게이션 (BEM 정석 반영)
=================================================== */
.nav-btn {
  position: fixed;
  right: 25px; 
  bottom: 20px; 
  z-index: 998;
  font-size: 27px;
  display: flex; 
  align-items: center; 
  justify-content: center; 
  flex-direction: column;
}

.nav-btn__link {
  display: inline-block;
  text-decoration: none;
  transition: transform 0.2s ease;
}

.nav-btn__link i {
  color: #CBD5E1; 
  opacity: 0.35;
  transition: opacity 0.2s ease;
}

.nav-btn__link:hover i {
  opacity: 1;
}

.nav-btn__link--top:hover {
  transform: translateY(-5px);
}
.nav-btn__link--bottom:hover {
  transform: translateY(5px);
}


/* 반응형 */
@media screen and (max-width: 1440px) {}

@media screen and (max-width: 1280px) {}

@media screen and (max-width: 1200px) {}

@media screen and (max-width: 1024px) {
  .film .container {width: min(900px, calc(100% - 25px));}
  
  .certificate .content-group {gap: 1.5rem;}
  .certificate .content-group img {width: calc((100% - 1.5rem) / 2);}

  .map .content-group__title {padding: 15px;}

  .plant__grid ul {gap: 15px;}
  .plant__grid li {min-height: 200px;}
  .plant__grid li p {bottom: 5px; left: 5px; padding: 3px 12.5px;}
  .storage {grid-template-columns: repeat(2, 1fr);}

  .products__main .content-group__title--main {font-size: 32px;}
  .products__main .product-img {background-size: contain;}
  .products__main .products__item.nozzle .product-img {background-position: center !important;}

  .qna .container {
    width: min(900px, calc(100% - 25px));
  } 

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;

    gap: 25px;
  }
}

@media screen and (max-width: 800px) {
  main section:last-of-type {padding-bottom: 80px;}

  .hero {
    background: 
    linear-gradient(rgba(6, 24, 43, 0.5),
    rgba(6, 24, 43, 0.5)),
    url(/images/main_visu01.png);
  }
  .hero__title {
    width: 100%;
    text-align: center;
  }
  .hero__main {font-size: 52px;}
  .hero__sub {font-size: 21px;}
  .hero__btn {justify-content: center}

  main section {padding: 50px 0;}

  .home .products .content-group__header {justify-content: center; text-align: center;}
  .products__grid {grid-template-columns: repeat(2, 1fr);}

  .main-message {font-size: 18px;}

  .sub-page .products .content-group {
    grid-template-columns: repeat(1, 1fr);
    gap: 25px;
  }

  .film .film-tab {padding: 0 8px;}
  .history__year {font-size: 21px;}
  .history__info li {padding-bottom: 10px;}
  
  .certificate .content-group {
    flex-direction: column;
    gap: 0;
  }
  .certificate .content-group img {width: 100%}

  .contact-globe .content-group__title--main {font-size: 24px;}
  .contact-globe:last-of-type .content-group__body {
    grid-template-columns: repeat(1, 1fr);
  }

  .qna-grid {gap: 15px;}
}

@media screen and (max-width: 768px) {
  .map .content-group {grid-template-columns: 1fr;}
  .map__item iframe {height: 300px;}
}

@media screen and (max-width: 600px) {
  .gnb__menu {display: none;}
  .mobile-nav {display: block;}

  .hero__main {font-size: 46px;}
  .hero__sub {font-size: 18px;}

  .contact .container {
    flex-direction: column;
    justify-content: center;
    gap: 35px;
  }
  .contact .content-group__header,
  .contact .content-group__body {
    justify-content: center;
    text-align: center;
  }

  .sub-nav__list {justify-content: center; text-align: center;}

  .film .film-tab {padding: 0 7px;}
  .history__info li {gap: .5rem;}
  .history__desc {font-size: 14px;}
  
  .plant__grid li {min-height: 180px;}

  .products__main .content-group__title--main {font-size: 27px;}
  .products__main .products__item {grid-template-columns: repeat(1, 1fr);}
  .products__main .product-img {width: 100%; height: 285px;}
  .products__main .product-number {left: 55px;}
  .product-note {padding-top: 20px; font-size: 15px;}

  .category__checkbox {gap: 10px 0;}
}

@media screen and (max-width: 480px) {
  .hero__point {font-size: 14px;}
  .hero__main {font-size: 36px;}

  .content-group__title--main {font-size: 27px;}

  .products__grid {grid-template-columns: repeat(1, 1fr);}
  .product-img {height: 275px;}
  .download--catalogue {margin-top: 16px;}

  .contact .content-group__title--main {font-size: 42px;}

  .breadcrumb__list {justify-content: center;}
  .page-banner__title {text-align: center;}
  .page-banner__title--sub {display: none;}
  .sub-nav__link {font-size: 15px; padding: 0 10px;}

  .sub-page .message .content-group__title {display: none;}
  .main-message {font-size: 16px;}

  .sub-page .products .content-group {gap: 0;}
  .sub-page .products .content-group__title--sub {display: none;}
  .sub-page .products .products__item .product__name,
  .sub-page .mission .mission__item .mission__name {font-size: 16px;}

  .sub-page .motto .content-group__title--main {font-size: 54px;}

  .film .film-tab {padding: 0 5px;}
  .history__year {display: none;}
  .history__info {border-left: 0;}
  .history__info li {gap: 0.5rem;}
  .history__date {font-size: 12px; min-width: 50px;}
  .history__desc {font-size: 14px;}

  .map .content-group__title--main {margin-bottom: 10px;}
  .map__item iframe {height: 250px;}
  
  .facilities-tab {justify-content: center;}
  .plant__grid li {min-height: 150px;}
  .plant__grid li p {font-size: 12px; padding: 3px 10px;}

  .products__main .content-group__title--main {font-size: 24px;}
  .products__main .products__item {padding: 15px 0;}
  .products__main .product-number {left: 0;}
  .products__main .product-name {font-size: 21px;}
  .products__main .product-info {padding: 20px 0 35px;}
  .products__main .download--catalogue {margin-top: 35px;}

  .contact-globe .content-group__title--main {font-size: 21px;}
  .contact-globe .body__title--main {font-size: 16px;}
  .contact-globe .nation__item li {flex-direction: column; gap: 10px;}
  .contact-globe .nation__item li:first-child {font-size: 16px; padding-bottom: 10px;}
  .contact-globe .nation__item li p {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    font-size: 15px;
  }

  .qna .content-group__title--point {display: none;}
  .qna-form {padding: 15px;}
  .qna-grid {grid-template-columns: repeat(1, 1fr);}
  .form__field.mobile,
  .form__field.tel {grid-template-columns: repeat(1, 1fr);}
  input:not([type="file"]), select, textarea {font-size: 13px;}
  .category__checkbox {grid-template-columns: repeat(1, 1fr)}
}

@media screen and (max-width: 320px) {
  main section {padding: 35px 0;}
  .container {width: min(1280px, calc(100% - 25px));}

  .mobile-nav__link {font-size: 14px;}

  .hero__container {min-height: 325px; gap: 15px;}
  .hero__point {font-size: 13px;}
  .hero__main {font-size: 26px;}
  .hero__sub {display: none;}
  .hero__btn {flex-direction: column; align-items: stretch;}

  .btn {font-size: 14px;}

  .content-group__header {padding-bottom: 0;}
  .content-group__title--point {font-size: 11px;}
  .content-group__title--main {font-size: 21px;}
  .content-group__body {font-size: 15px;}

  .product-img {height: 185px;}
  .product-info {padding: 15px 15px 20px;}
  .product-point {font-size: 13px;}
  .product-name {font-size: 17px;}
  .download--catalogue {font-size: 14px;}
  
  .sub-page .products .products__item .product__name, .sub-page .mission .mission__item .mission__name {font-size: 15px;}

  .contact .content-group__title--main {font-size: 32px;}

  .page-banner__title--main {font-size: 42px;}
  .sub-page .motto .content-group__title--main {font-size: 36px;}
  
  .film .film-tab {padding: 0; justify-content: center;}
  .film .film-tab p {display: none;}

  .map__item iframe {height: 180px;}
  .map__info {font-size: 15px;}

  .plant__grid ul {grid-template-columns: repeat(1, 1fr);}
  .manufacturing li {grid-column: span 1;}

  .products__main .content-group__title--main {display: none;}
  .products__main .product-img {background-size: cover; height: 200px;}

  .contact-globe .body__header {gap: 15px;}
  
  .qna-grid {grid-template-columns: minmax(0, 1fr);}
}