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

:root {
  --g900: #1a3323;
  --g800: #243d2c;
  --g700: #2d5236;
  --g600: #3a6644;
  --g500: #4d7a56;
  --g400: #5a9467;
  --g200: #a8ccb0;
  --g100: #d4e8d8;
  --g50:  #eef6f0;
  --cream: #f8f5ef;
  --beige: #ede9e0;
  --beige2: #e2ddd4;
  --txt: #1c2820;
  --txt2: #4a5a50;
  --txt3: #7a8a80;
  --white: #ffffff;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(26,51,35,0.08), 0 4px 12px rgba(26,51,35,0.06);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Pretendard', 'Apple SD Gothic Neo', sans-serif;
  color: var(--txt);
  background: var(--white);
  line-height: 1.7;
  word-break: keep-all;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ── TYPOGRAPHY ── */
h1 { font-size: clamp(32px, 5vw, 56px); font-weight: 700; line-height: 1.2; letter-spacing: -1.5px; }
h2 { font-size: clamp(24px, 3.5vw, 40px); font-weight: 700; line-height: 1.3; letter-spacing: -0.8px; }
h3 { font-size: clamp(18px, 2.5vw, 24px); font-weight: 600; line-height: 1.4; letter-spacing: -0.3px; }
h4 { font-size: 17px; font-weight: 600; }
p  { font-size: 16px; line-height: 1.8; color: var(--txt2); }

/* ── NAV ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 999;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--beige);
  height: 110px;
  display: flex; align-items: center;
  padding: 0 6%;
}
.nav-inner {
  width: 100%; max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo img { height: 96px; width: auto; }
.nav-logo-text { font-size: 16px; font-weight: 700; color: var(--g800); letter-spacing: -0.3px; }
.nav-menu { display: flex; align-items: center; gap: 32px; }
.nav-menu a { font-size: 14px; color: var(--txt2); font-weight: 400; transition: color .2s; }
.nav-menu a:hover, .nav-menu a.active { color: var(--g700); font-weight: 500; }
.nav-cta {
  background: var(--g800); color: var(--white);
  padding: 9px 20px; border-radius: var(--radius-sm);
  font-size: 13px; font-weight: 500;
  transition: background .2s;
}
.nav-cta:hover { background: var(--g700); color: var(--white); }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 500; cursor: pointer;
  transition: all .2s; border: none;
}
.btn-primary { background: var(--g800); color: var(--white); }
.btn-primary:hover { background: var(--g700); color: var(--white); }
.btn-outline { background: transparent; color: var(--g800); border: 1.5px solid var(--g800); }
.btn-outline:hover { background: var(--g50); }
.btn-sm { padding: 10px 22px; font-size: 14px; }
.btn-lg { padding: 18px 40px; font-size: 17px; }

/* ── SECTION ── */
.section { padding: 100px 6%; }
.section-sm { padding: 60px 6%; }
.container { max-width: 1200px; margin: 0 auto; }
.section-label {
  display: inline-block;
  font-size: 12px; font-weight: 600; letter-spacing: 2px;
  text-transform: uppercase; color: var(--g500);
  margin-bottom: 14px;
}
.section-title { margin-bottom: 16px; }
.section-desc { color: var(--txt2); font-size: 17px; font-weight: 300; max-width: 560px; margin-bottom: 60px; line-height: 1.8; }
.section-desc.center { margin-left: auto; margin-right: auto; text-align: center; }
.text-center { text-align: center; }

/* ── GRID ── */
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }

/* ── CARDS ── */
.card {
  background: var(--white);
  border: 1px solid var(--beige);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: box-shadow .25s, transform .25s;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.card-icon {
  width: 52px; height: 52px;
  background: var(--g50);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 20px;
}
.card h3 { margin-bottom: 10px; font-size: 18px; }
.card p { font-size: 14px; line-height: 1.7; }
.card-dark {
  background: var(--g800);
  border-color: var(--g700);
}
.card-dark h3, .card-dark h4 { color: var(--white); }
.card-dark p { color: var(--g200); }
.card-dark .card-icon { background: var(--g700); }

/* ── TAGS / BADGES ── */
.badge {
  display: inline-block; padding: 4px 12px; border-radius: 20px;
  font-size: 12px; font-weight: 500;
}
.badge-green { background: var(--g50); color: var(--g700); }
.badge-dark { background: var(--g800); color: var(--white); }
.badge-cream { background: var(--beige); color: var(--txt2); }

/* ── DIVIDER ── */
.divider { width: 48px; height: 3px; background: var(--g400); border-radius: 2px; margin: 20px 0 32px; }
.divider.center { margin-left: auto; margin-right: auto; }

/* ── FOOTER ── */
.footer {
  background: var(--g900); color: var(--g200);
  padding: 60px 6% 36px;
}
.footer-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
}
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo img { height: 80px; width: auto; }
.footer-logo-text { font-size: 15px; font-weight: 700; color: var(--white); }
.footer-tagline { font-size: 14px; color: var(--g200); line-height: 1.7; font-weight: 300; }
.footer-col h5 { font-size: 13px; font-weight: 600; color: var(--white); margin-bottom: 16px; letter-spacing: 0.5px; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { font-size: 13px; color: var(--g200); transition: color .2s; font-weight: 300; }
.footer-col ul li a:hover { color: var(--white); }
.footer-bottom {
  max-width: 1200px; margin: 48px auto 0;
  padding-top: 28px; border-top: 1px solid var(--g800);
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
}
.footer-bottom p { font-size: 13px; color: var(--txt3); font-weight: 300; }

/* ── PAGE HERO ── */
.page-hero {
  padding: 140px 6% 80px;
  background: var(--cream);
}
.page-hero-inner { max-width: 1200px; margin: 0 auto; }

/* ── UTILS ── */
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-48 { margin-top: 48px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.flex { display: flex; }
.items-center { align-items: center; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.color-green { color: var(--g500); }
.bg-cream { background: var(--cream); }
.bg-dark { background: var(--g900); }

/* ── MOBILE ── */
@media (max-width: 768px) {
  .nav-menu { display: none; }
  .section { padding: 72px 5%; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
  .footer-inner { grid-template-columns: 1fr; }
}

/* ── MOBILE NAV ── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--txt);
  border-radius: 2px;
  transition: all .3s;
}
.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); }

.nav-mobile-menu {
  display: none;
  position: fixed;
  top: 110px;
  left: 0; right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--beige);
  padding: 16px 6%;
  flex-direction: column;
  gap: 0;
  z-index: 998;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}
.nav-mobile-menu.open { display: flex; }
.nav-mobile-menu a {
  font-size: 16px;
  color: var(--txt2);
  padding: 14px 0;
  border-bottom: 1px solid var(--beige);
  font-weight: 400;
}
.nav-mobile-menu a:last-child { border-bottom: none; }
.nav-mobile-menu .nav-cta {
  margin-top: 8px;
  text-align: center;
  border-radius: var(--radius-sm);
  padding: 14px;
  border-bottom: none;
  color: var(--white);
}

@media (max-width: 768px) {
  .nav-hamburger { display: flex; }
  .nav-menu { display: none; }
}