:root {
  --primary-d: #0A2B2C;
  --primary: #0F3D3E;
  --secondary: #146F63;
  --accent: #4CBB8A;
  --accent-soft: #CFE9DD;
  --light-bg: #F5F9F7;
  --dark-text: #16302C;
  --muted: #5B6E68;
  --card: #FFFFFF;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Malgun Gothic", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  color: var(--dark-text);
  background: var(--light-bg);
  line-height: 1.6;
}

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

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #FFFFFF;
  border-bottom: 1px solid #E4EFEC;
}
.nav-wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-wrap .logo img { height: 72px; width: auto; }
.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  font-size: 15px;
  font-weight: 700;
  color: var(--dark-text);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color .15s, border-color .15s;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--secondary);
  border-bottom-color: var(--accent);
}
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--dark-text);
}

@media (max-width: 760px) {
  .nav-links {
    position: absolute;
    top: 62px;
    left: 0;
    right: 0;
    background: #FFFFFF;
    flex-direction: column;
    gap: 0;
    border-bottom: 1px solid #E4EFEC;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 24px; border-bottom: 1px solid #EEF5F2; }
  .nav-toggle { display: block; }
}

/* Hero (dark) */
.hero {
  position: relative;
  background: var(--primary-d);
  color: #FFFFFF;
  overflow: hidden;
  padding: 96px 24px 110px;
}
.hero .blob {
  position: absolute;
  border-radius: 50%;
}
.hero .blob-1 { width: 420px; height: 420px; right: -140px; top: -160px; background: var(--primary); opacity: .55; }
.hero .blob-2 { width: 340px; height: 340px; left: -120px; bottom: -160px; background: var(--secondary); opacity: .4; }
.hero-inner {
  position: relative;
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}
.hero-inner .tag {
  display: inline-block;
  color: var(--accent);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .02em;
  margin-bottom: 18px;
}
.hero-inner h1 {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 18px;
}
.hero-inner p.lead {
  font-size: 17px;
  color: #C9E3DA;
  margin-bottom: 34px;
}
.hero-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}
.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 14.5px;
  transition: transform .15s, opacity .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-accent { background: var(--accent); color: var(--primary-d); }
.btn-outline { border: 1.5px solid rgba(255,255,255,.5); color: #FFFFFF; }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* KakaoTalk 채널 버튼 */
.kakao-cta { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 10px; }
.kakao-btn { background: #FEE500; color: #3C1E1E; }
.kakao-btn:hover { opacity: .9; }
.kakao-btn-o { background: transparent; border: 1.5px solid #FEE500; color: #FEE500; }
.kakao-btn-o:hover { background: rgba(254,229,0,.12); }

/* Section headings */
.section { padding: 72px 0; }
.section-dark { background: var(--primary-d); color: #FFFFFF; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-head .eyebrow {
  color: var(--accent);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 10px;
  display: block;
}
.section-head h2 { font-size: 28px; font-weight: 800; margin-bottom: 12px; }
.section-head p { color: var(--muted); font-size: 15px; }
.section-dark .section-head p { color: #A9CFC4; }

/* Grid / cards */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 860px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .hero { padding: 64px 20px 80px; }
  .hero-inner h1 { font-size: 28px; }
  .hero-inner p.lead { font-size: 15px; }
  .section-head h2 { font-size: 23px; }
}

.card {
  background: var(--card);
  border-radius: 14px;
  padding: 28px 24px;
  box-shadow: 0 10px 26px rgba(10,43,44,0.08);
}
.card h3 { font-size: 17px; font-weight: 800; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 14px; }

.icon-circle {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-size: 20px;
  margin-bottom: 16px;
}
.card.accent-icon .icon-circle { background: var(--accent); color: var(--primary-d); }

.stat-card {
  text-align: center;
  padding: 30px 18px;
}
.stat-card .num { font-size: 34px; font-weight: 800; color: var(--secondary); margin-bottom: 6px; }
.stat-card .label { font-size: 13.5px; color: var(--muted); font-weight: 700; }

/* Info rows (label/value) */
.info-row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  background: var(--card);
  border-radius: 12px;
  padding: 18px 20px;
  box-shadow: 0 8px 20px rgba(10,43,44,0.06);
}
.info-row .icon-circle { flex-shrink: 0; width: 42px; height: 42px; font-size: 17px; margin-bottom: 14px; }
.info-row .label { font-size: 12.5px; font-weight: 700; color: var(--muted); margin-bottom: 4px; }
.info-row .value { font-size: 14.5px; font-weight: 700; color: var(--dark-text); }
.info-row .value .value-sub { font-size: 11.5px; font-weight: 600; color: var(--muted); }
.info-row .value.nowrap { white-space: nowrap; }

/* Tables */
table.spec-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.spec-table th, table.spec-table td { text-align: left; padding: 6px 0; border-bottom: 1px solid #EEF5F2; color: var(--muted); }
table.spec-table th { color: var(--dark-text); width: 84px; font-weight: 700; }

.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--secondary);
  background: var(--accent-soft);
  padding: 3px 10px;
  border-radius: 20px;
  margin: 2px 4px 0 0;
}

.note-box {
  background: var(--accent-soft);
  border-radius: 12px;
  padding: 18px 22px;
  font-size: 13.5px;
  color: var(--primary);
}
.note-box-dark {
  background: rgba(207,233,221,0.14);
  color: #CFE9DD;
}

/* CTA banner */
.cta-banner {
  background: var(--secondary);
  color: #FFFFFF;
  border-radius: 20px;
  padding: 48px 40px;
  text-align: center;
}
.cta-banner h2 { font-size: 24px; font-weight: 800; margin-bottom: 10px; }
.cta-banner p { color: #D6EDE4; margin-bottom: 26px; }

/* Timeline */
.timeline-item { display: flex; gap: 14px; margin-bottom: 12px; }
.timeline-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); margin-top: 6px; flex-shrink: 0; }
.timeline-item .year { font-weight: 700; color: var(--secondary); margin-right: 8px; }

/* Contact page */
.contact-list dt { font-size: 12.5px; font-weight: 700; color: var(--muted); margin-top: 16px; }
.contact-list dd { font-size: 14.5px; margin-bottom: 4px; }

.form-field { margin-bottom: 16px; }
.form-field label { display: block; font-size: 13.5px; font-weight: 700; margin-bottom: 6px; color: var(--dark-text); }
.form-field input, .form-field textarea {
  width: 100%;
  border: 1.5px solid #DCEAE4;
  border-radius: 8px;
  padding: 11px 14px;
  font-size: 14px;
  font-family: inherit;
  color: var(--dark-text);
  background: #FFFFFF;
}
.form-field input:focus, .form-field textarea:focus { outline: none; border-color: var(--accent); }

/* Footer */
footer.site-footer {
  background: var(--primary-d);
  color: #A9CFC4;
  padding: 46px 0 28px;
  font-size: 13.5px;
}
footer.site-footer .footer-top {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 28px;
}
footer.site-footer .footer-logo img { height: 26px; margin-bottom: 12px; }
footer.site-footer a:hover { color: var(--accent); }
footer.site-footer .footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 18px;
  font-size: 12.5px;
  color: #7FA79B;
}

/* Cards always keep their own text colors (white card background),
   regardless of whether the surrounding section is light or dark. */
.card h3 { color: var(--dark-text); }
.card p { color: var(--muted); }

/* Dark-section overrides for readability (plain text directly on dark bg) */
.section-dark .contact-list dt { color: #8FC2B6; }
.section-dark .contact-list dd { color: #FFFFFF; }