/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=Playfair+Display:ital,wght@0,400;0,700;1,400;1,700&family=Noto+Sans+KR:wght@300;400;500&display=swap');

/* ─── CSS 변수 ─── */
:root {

  /* 배경색 */
  --color-bg-primary:    #f7f3ec;
  --color-bg-secondary:  #efe9df;
  --color-bg-tertiary:   #e6ddd1;

  /* 그린 포인트 */
  --color-accent:        #2c4a1e;
  --color-accent-mid:    #3d6329;
  --color-accent-light:  #5a8a3c;
  --color-accent-dim:    rgba(44, 74, 30, 0.15);

  /* 텍스트 */
  --color-text-primary:   #1a1a0f;
  --color-text-secondary: #3d3d2a;
  --color-text-muted:     #7a7a60;

  /* 테두리 */
  --color-border:        rgba(44, 74, 30, 0.2);
  --color-border-subtle: rgba(44, 74, 30, 0.08);

  /* 오버레이 */
  --color-overlay-dark:  rgba(0, 0, 0, 0.55);

  /* ─── 폰트 패밀리 ─── */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-mono:    'Space Mono', 'Courier New', monospace;
  --font-body:    'Noto Sans KR', sans-serif;

  /* ─── 폰트 크기 (1rem = 10px) ─── */
  --text-2xs:  1.2rem;    /* 12px */
  --text-xs:   1.4rem;    /* 14px */
  --text-sm:   1.6rem;    /* 16px */
  --text-base: 1.6rem;    /* 16px */
  --text-md:   1.8rem;    /* 18px */
  --text-lg:   2rem;      /* 20px */
  --text-xl:   2.4rem;    /* 24px */
  --text-2xl:  3.2rem;    /* 32px */
  --text-3xl:  4rem;      /* 40px */
  --text-4xl:  5.6rem;    /* 56px*/ 
  --text-5xl:  8rem;      /* 80px */
  --text-6xl:  10.4rem;   /* 104px */

  /* ─── 폰트 굵기 ─── */
  --fw-light:    300;
  --fw-regular:  400;
  --fw-medium:   500;
  --fw-semibold: 600;
  --fw-bold:     700;

  /* ─── 자간 ─── */
  --ls-widest:  0.3em;
  --ls-wide:    0.15em;
  --ls-normal:  0.05em;

  /* ─── 간격 ─── */
  --space-xs:  0.8rem;    /*  8px */
  --space-sm:  1.6rem;    /* 16px */
  --space-md:  3.2rem;    /* 32px */
  --space-lg:  6.4rem;    /* 64px */
  --space-xl:  9.6rem;    /* 96px */
  --space-2xl: 12.8rem;   /* 128px */
  --space-3xl: 19.2rem;   /* 192px */

  /* ─── 레이아웃 ─── */
  --max-width:        1320px;
  --max-width-narrow: 900px;
  --container-pad:    7rem;
  --banner-h:         5rem;

  /* ─── 전환 ─── */
  --transition:      all 0.3s ease;
  --transition-slow: all 0.65s ease;
}


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

html {
  scroll-behavior: smooth;
  font-size: 62.5%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--fw-light);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: var(--font-body);
}

input, select, textarea {
  font-family: var(--font-body);
}


/* ─────────────────────────────────────────────
   공통 레이아웃
───────────────────────────────────────────── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section-header {
  text-align: center;
  margin-bottom: 8rem;
}

.section-label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-widest);
  color: var(--color-accent);
  margin-bottom: 3.2rem;
  text-transform: uppercase;
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--fw-medium);
  line-height: 1.2;
  color: var(--color-accent);
}

.section-desc {
  margin-top: 2rem;
  color: var(--color-text-secondary);
  font-weight: var(--fw-light);
  line-height: 1.9;
}

.accent-line {
  width: 50px;
  height: 2px;
  background: var(--color-accent);
  margin: 2.4rem 0;
}

.accent-line--center {
  margin-left: auto;
  margin-right: auto;
}


/* ─────────────────────────────────────────────
   버튼
───────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 14px 38px;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--fw-regular);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  transition: var(--transition);
  cursor: pointer;
}

.btn--green {
  background: var(--color-accent);
  color: #ffffff;
}
.btn--green:hover {
  background: var(--color-accent-mid);
}

.btn--outline {
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
}
.btn--outline:hover {
  background: var(--color-accent);
  color: #ffffff;
}

.btn--sm {
  padding: 9px 22px;
  font-size: var(--text-2xs);
}


/* ─────────────────────────────────────────────
   네비게이션
───────────────────────────────────────────── */
.nav {
  position: fixed;
  top: var(--banner-h);
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 28px 0;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  padding: 16px 0;
  background: rgba(247, 243, 236, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 1rem;
  line-height: 1;
}
.nav__logo-icon {
  font-size: 2.8rem;
  color: var(--color-accent);
}
.nav__logo-text {
  display: flex;
  flex-direction: column;
}
.nav__logo-en {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--fw-bold);
  color: var(--color-accent);
}
.nav__logo-kr {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  color: var(--color-text-muted);
  letter-spacing: var(--ls-normal);
  margin-top: 5px;
  margin-left: 5px;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 3rem;
}

.nav__link {
  font-family: var(--font-body);
  font-weight: var(--fw-medium);
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.nav__link:hover {
  color: var(--color-accent);
}

.nav__link--cta {
  color: var(--color-accent);
  transition: var(--transition);
}
.nav__link--cta:hover {
  color: var(--color-accent-light);
  border-bottom-color: var(--color-accent-light);
  letter-spacing: 0.1em;
}

.nav:not(.scrolled) .nav__link {
  color: rgba(255, 255, 255, 0.6);
}
.nav:not(.scrolled) .nav__link:hover {
  color: #ffffff;
}
.nav:not(.scrolled) .nav__link--cta {
  border-color: rgba(255, 255, 255, 0.65);
}
.nav:not(.scrolled) .nav__link--cta:hover {
  border-color: var(--color-accent-light);
}


/* ─── 드롭다운 ─── */
.nav__item--dropdown {
  position: relative;
}

.nav__dropdown {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  min-width: 160px;
  box-shadow: 0 8px 24px rgba(44, 74, 30, 0.12);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  z-index: 1100;
}

.nav__item--dropdown:hover .nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav__dropdown-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px;
  font-size: var(--text-xs);
  font-weight: var(--fw-medium);
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border-subtle);
  transition: var(--transition);
}
.nav__dropdown li:last-child .nav__dropdown-link {
  border-bottom: none;
}
.nav__dropdown-link:hover {
  color: var(--color-accent);
}

.nav__dropdown-badge {
  display: none;
}



/* ─────────────────────────────────────────────
   푸터
───────────────────────────────────────────── */
.footer {
  background: #ece5d8;
  padding: 50px 0 30px;
  border-top: 1px solid var(--color-border);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 64px;
  margin-bottom: 40px;
  align-items: start;
}

.footer__logo {
  margin-bottom: 5rem;
}

.footer__info {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.footer__info-item {
  display: flex;
  gap: 40px;
}
.footer__info-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  min-width: 90px;
  flex-shrink: 0;
}
.footer__info-value {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.footer__contact {
  align-self: end;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 16px;
}
.footer__contact-title {
  font-size: var(--text-xs);
  letter-spacing: var(--ls-wide);
  color: var(--color-accent);
  text-transform: uppercase;
}

.footer__contact-item {
  display: flex; 
  flex-direction: column;
  align-items: flex-end; 
  gap: 5px;                                                                   
}
.footer__contact-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.footer__sns {
  display: flex;
  gap: 25px;
}
.footer__sns-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  transition: var(--transition);
}
.footer__sns-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  object-fit: contain;
  transition: var(--transition);
  filter: brightness(0) saturate(100%) invert(57%) sepia(0%) saturate(0%) hue-rotate(0deg) brightness(100%); 
}
.footer__sns-item:hover {
  color: var(--color-accent);
}
.footer__sns-item:hover .footer__sns-icon {
  filter: brightness(0) saturate(100%) invert(23%) sepia(49%) saturate(456%) hue-rotate(62deg) brightness(93%);  
}

.footer__bottom {
  padding-top: 20px;
  border-top: 1px solid var(--color-accent-dim);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer__bottom p {
  font-size: var(--text-xs);
  letter-spacing: var(--ls-wide);
}


/* ─────────────────────────────────────────────
   스크롤 리빌 애니메이션
───────────────────────────────────────────── */
[data-reveal] {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.85s ease, transform 0.85s ease;
}
[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}


/* ─────────────────────────────────────────────
   모바일 반응형
───────────────────────────────────────────── */

/* 햄버거 버튼 — 데스크탑에서 숨김 */
.nav__hamburger {
  display: none;
}

/* Laptop 1024px */
@media (max-width: 1024px) {
  .container,
  .nav__container {
    padding: 0 5rem;
  }
  .nav__logo-icon {
    font-size: 2.8rem;
  }
  .nav__logo-en {
    font-size: var(--text-xl);  
  }
  .nav__logo-kr {
    font-size: 1rem;
  }
  .nav__menu {
    gap: 2rem;
  }
  .nav__link{
    font-size: var(--text-2xs);
    letter-spacing: 0.06em;
  }
}

/* Tablet 768px */
@media (max-width: 768px) {
  .nav {
    padding: 0;
  }
  .nav.scrolled {
    padding: 0;
  }
  .nav__container {
    padding: 0 4rem;
    height: 8rem;
    position: relative;
  }

  /* 드롭다운 비활성화 */
  .nav__dropdown {
    display: none;
  }
  /* 햄버거 버튼 */
  .nav__hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 10;
  }
  .nav__hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 1px;
    transition: transform 0.3s ease, opacity 0.3s ease;
    transform-origin: center;
  }
  .nav__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav__hamburger.open span:nth-child(2) { opacity: 0; }
  .nav__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* 모바일 메뉴 */
  .nav__menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(247, 243, 236, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }
  .nav__menu.open {
    max-height: 40rem;
  }
  .nav:not(.scrolled) .nav__menu {
    background: rgba(0, 0, 0, 0.3);
    box-shadow: none;
  }
  .nav__menu li {
    width: 100%;
  }
  .nav__link {
    display: block;
    text-align: center;
    padding: 1.2rem;
    font-size: var(--text-2xs);
    text-transform: uppercase;
    border-bottom: 1px solid var(--color-border-subtle);
    color: var(--color-text-secondary);
  }
  .nav__menu li:last-child .nav__link {
    border-bottom: none;
  }
  .nav__link--cta {
    color: var(--color-accent);
    border-bottom: 1px solid var(--color-border-subtle);
    padding: 1.2rem;
  }
  .container {
    padding: 0 4rem;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
  .footer__logo {
  margin-bottom: 3rem;
  }
  .footer__info-label {
    font-size: var(--text-2xs);
  }
  .footer__info-value {
    font-size: var(--text-2xs);
  }
  .footer__contact {
    align-items: flex-start;
  }
  .footer__contact-title {
    font-size: var(--text-2xs);
  }
  .footer__contact-label {
    font-size: var(--text-2xs);
  }
  .footer__contact-item{
    align-items: flex-start; 
    font-size: var(--text-xs);  
  }
  .footer__sns {
    gap: 20px;
  }
  .footer__sns-item {
      font-size: var(--text-xs);
    gap: 8px;
  }
  .footer__sns-icon {
    width: 16px;
    height: 16px;
  }
  .footer__bottom {
    flex-direction: column;
    gap: 0.8rem;
    text-align: center;
  }
  .footer__bottom p {
    font-size: var(--text-2xs);
  }
}

/* Mobile L 430px */
@media (max-width: 430px) {
  .nav__container {
    padding: 0 3rem;
  }
  .container {
    padding: 0 3rem;
  }
  .footer__info-item {
    gap: 30px;
  }
  .footer__contact-item{
    font-size: var(--text-2xs);  
  }
  .footer__sns {
    gap: 1.6rem;
    flex-wrap: wrap;
  }
  .footer__sns-item {
    gap: 6px;
  }
}

/* Mobile S 360px */
@media (max-width: 360px) {
  .nav__container,
  .container {
    padding: 0 2rem;
  }
}