:root {
  --black: #0a0a0a;
  --ink: #111;
  --ink-2: #2a2a2a;
  --muted: #6b6b6b;
  --line: #e6e6e6;
  --bg: #ffffff;
  --bg-soft: #f6f6f4;
  --accent: #0a0a0a;
  --max-width: 1180px;
  --serif: "Noto Serif KR", "Nanum Myeongjo", serif;
  --sans: "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  font-family: var(--serif);
  letter-spacing: 0.02em;
}
.brand-mark {
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.06em;
}
.brand-name {
  font-size: 15px;
  color: var(--ink-2);
}
.nav ul {
  display: flex;
  gap: 36px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav a {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
  position: relative;
  padding: 6px 0;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--black);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .35s ease;
}
.nav a:hover::after { transform: scaleX(1); transform-origin: left; }

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  width: 40px; height: 40px;
  position: relative;
  cursor: pointer;
}
.nav-toggle span {
  position: absolute;
  left: 8px; right: 8px;
  height: 1.5px;
  background: var(--ink);
  transition: transform .3s ease, opacity .3s ease, top .3s ease;
}
.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 20px; }
.nav-toggle span:nth-child(3) { top: 26px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { top: 20px; transform: rotate(-45deg); }

/* ============ Hero ============ */
.hero {
  position: relative;
  overflow: hidden;
  padding: 140px 0 160px;
  background: var(--bg);
}
.hero-inner {
  position: relative;
  z-index: 2;
}
.hero-text { max-width: 720px; }
.hero-eyebrow {
  font-family: var(--sans);
  letter-spacing: 0.32em;
  font-size: 12px;
  color: var(--muted);
  margin: 0 0 24px;
  text-transform: uppercase;
}
.hero-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(36px, 6vw, 68px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0 0 28px;
  color: var(--black);
}
.hero-sub {
  font-size: clamp(15px, 1.6vw, 19px);
  color: var(--ink-2);
  margin: 0 0 40px;
  max-width: 620px;
}
.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 26px;
  font-size: 15px;
  font-weight: 500;
  border-radius: 999px;
  border: 1px solid var(--black);
  transition: background .2s ease, color .2s ease, transform .2s ease;
  cursor: pointer;
}
.btn-primary {
  background: var(--black);
  color: #fff;
}
.btn-primary:hover { background: #000; transform: translateY(-1px); color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--black);
}
.btn-ghost:hover { background: var(--black); color: #fff; }

.hero-decor {
  position: absolute;
  left: -160px; bottom: -160px;
  width: 480px; height: 480px;
  border: 1px solid var(--line);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
}
.hero-decor::after {
  content: "";
  position: absolute;
  inset: 60px;
  border: 1px solid var(--line);
  border-radius: 50%;
}

/* ============ Section base ============ */
.section {
  padding: 120px 0;
  border-top: 1px solid var(--line);
}
.section-head {
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: end;
  gap: 24px;
  margin-bottom: 64px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}
.section-num {
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 0.18em;
  color: var(--muted);
}
.section-title {
  font-family: var(--serif);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--black);
}
.section-kicker {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  text-align: right;
}

/* ============ About ============ */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 80px;
}
.about-lead {
  font-family: var(--serif);
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink);
  margin: 0;
}
.about-lead strong {
  font-weight: 700;
  background-image: linear-gradient(transparent 65%, rgba(0,0,0,0.08) 65%);
}
.about-points {
  display: grid;
  gap: 28px;
  align-content: start;
}
.point {
  padding: 24px 0;
  border-top: 1px solid var(--line);
}
.point:last-child { border-bottom: 1px solid var(--line); }
.point h3 {
  font-family: var(--serif);
  font-size: 20px;
  margin: 0 0 8px;
  letter-spacing: 0.02em;
}
.point p {
  margin: 0;
  color: var(--ink-2);
  font-size: 15px;
}

/* ============ Members ============ */
.members { background: var(--bg-soft); }
.member-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  max-width: 880px;
  margin: 0 auto;
}
.member-card {
  background: #fff;
  border: 1px solid var(--line);
  display: grid;
  grid-template-columns: 200px 1fr;
  overflow: hidden;
  transition: transform .35s ease, box-shadow .35s ease;
}
.member-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 40px -22px rgba(0,0,0,0.25);
}
.member-photo {
  background: var(--black);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  letter-spacing: 0.2em;
  font-size: 18px;
  text-align: center;
  line-height: 1.5;
  min-height: 240px;
  position: relative;
  overflow: hidden;
}
.member-photo--image { padding: 0; }
.member-photo--image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 22%;
  display: block;
  filter: grayscale(6%);
}
.member-body {
  padding: 28px 28px 32px;
}
.member-role {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 4px 10px;
  border-radius: 999px;
  margin: 0 0 14px;
}
.member-name {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 600;
  margin: 0 0 18px;
  letter-spacing: -0.01em;
}
.member-name-en {
  font-size: 14px;
  color: var(--muted);
  font-weight: 400;
  margin-left: 8px;
  letter-spacing: 0.06em;
}
.member-meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.member-meta li {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 14px;
  font-size: 15px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
}
.member-meta li:last-child { border-bottom: 1px solid var(--line); }
.meta-label {
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.08em;
}
.meta-value { color: var(--ink); }

/* ============ Contact ============ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
  align-items: start;
}
.contact-info dl { margin: 0; }
.contact-row {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 16px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.contact-row:last-of-type { border-bottom: 1px solid var(--line); }
.contact-row dt {
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--muted);
  font-weight: 500;
  padding-top: 4px;
}
.contact-row dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
}
.contact-row dd a:hover { text-decoration: underline; }
.contact-cta {
  margin-top: 32px;
  flex-direction: column;
  gap: 4px;
  padding: 16px 28px;
  line-height: 1.3;
}
.cta-main {
  font-size: 15px;
  font-weight: 600;
}
.cta-sub {
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.08em;
  opacity: 0.75;
}

.contact-map {
  width: 100%;
  aspect-ratio: 4/3;
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--bg-soft);
}
.map-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 32px;
  text-decoration: none;
  color: var(--ink);
  background:
    radial-gradient(circle at 30% 20%, rgba(3, 199, 90, 0.06), transparent 55%),
    radial-gradient(circle at 80% 80%, rgba(0, 0, 0, 0.04), transparent 60%),
    repeating-linear-gradient(45deg, transparent 0 18px, rgba(0,0,0,0.025) 18px 19px),
    var(--bg-soft);
  transition: background-color .25s ease, transform .25s ease;
  position: relative;
  overflow: hidden;
}
.map-card:hover {
  background-color: #fff;
  transform: translateY(-2px);
}
.map-card::before {
  content: "NAVER MAP";
  position: absolute;
  top: 18px; right: 22px;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: #03c75a;
  font-weight: 700;
}
.map-card-visual {
  color: #03c75a;
  background: #fff;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 14px 30px -16px rgba(3, 199, 90, 0.55);
  margin-bottom: 24px;
}
.map-card-label {
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 0.16em;
  color: var(--muted);
  margin: 0 0 10px;
  text-transform: uppercase;
}
.map-card-address {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink);
  margin: 0 0 22px;
}
.map-card-cta {
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #03c75a;
  border-bottom: 1px solid #03c75a;
  padding-bottom: 4px;
  align-self: flex-start;
  transition: gap .2s ease;
}
.map-card:hover .map-card-cta { gap: 8px; }

/* ============ Footer ============ */
.site-footer {
  background: var(--black);
  color: #d8d8d8;
  padding: 56px 0 40px;
  margin-top: 0;
}
.footer-inner { display: grid; gap: 14px; }
.footer-brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
  color: #fff;
  font-family: var(--serif);
}
.footer-brand .brand-mark {
  font-size: 20px;
  letter-spacing: 0.06em;
}
.footer-meta {
  margin: 0;
  font-size: 14px;
  color: #b3b3b3;
}
.footer-copy {
  margin: 0;
  font-size: 13px;
  color: #8a8a8a;
  letter-spacing: 0.04em;
}

/* ============ Reveal animation ============ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .8s ease, transform .8s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ============ Responsive ============ */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .section { padding: 80px 0; }
  .hero { padding: 88px 0 100px; }
  .section-head {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .section-kicker { text-align: left; }
}

@media (max-width: 720px) {
  .nav { display: none; }
  .nav-toggle { display: inline-block; }
  .nav.is-open {
    display: block;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    padding: 16px 0;
  }
  .nav.is-open ul {
    flex-direction: column;
    gap: 0;
    padding: 0 24px;
  }
  .nav.is-open li {
    border-top: 1px solid var(--line);
  }
  .nav.is-open li:first-child { border-top: 0; }
  .nav.is-open a {
    display: block;
    padding: 16px 0;
  }
  .brand-name { display: none; }
  .member-card {
    grid-template-columns: 1fr;
  }
  .member-photo { min-height: 160px; }
  .contact-row {
    grid-template-columns: 90px 1fr;
    gap: 10px;
  }
  .hero-decor { width: 320px; height: 320px; right: -80px; top: -80px; }
}