/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: #1a2332;
  background: #ffffff;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
ul, ol { list-style: none; padding: 0; margin: 0; }
h1, h2, h3 { margin: 0 0 .6em; line-height: 1.3; font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); font-weight: 900; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 .8em; }

:root {
  --primary: #0b4a8f;
  --primary-dark: #073362;
  --accent: #1e88e5;
  --ink: #1a2332;
  --ink-soft: #4a5a70;
  --muted: #7a8698;
  --line: #e5eaf1;
  --bg-soft: #f5f8fc;
  --bg-alt: #f0f5fb;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(11, 74, 143, 0.06);
  --shadow-md: 0 8px 24px rgba(11, 74, 143, 0.08);
  --shadow-lg: 0 16px 48px rgba(11, 74, 143, 0.12);
}

.container { width: min(1160px, 92%); margin: 0 auto; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  margin: 0 0 .6em;
}
.accent { color: var(--accent); }
.d-desktop { display: inline; }
@media (max-width: 640px) { .d-desktop { display: none; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.98rem;
  border: 1.5px solid transparent;
  transition: all .2s ease;
  text-align: center;
  letter-spacing: -0.005em;
}
.btn-sm { padding: 10px 18px; font-size: 0.9rem; }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.5); }
.btn-ghost:hover { background: rgba(255,255,255,0.12); border-color: #fff; }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.95);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.site-header.scrolled { border-color: var(--line); box-shadow: var(--shadow-sm); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 1rem;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -0.01em; }
.logo-img {
  height: 42px;
  width: auto;
  display: block;
  max-width: 220px;
  object-fit: contain;
}
@media (max-width: 480px) {
  .logo-img { height: 36px; max-width: 180px; }
}
.nav { display: flex; gap: 1.8rem; }
.nav a {
  font-size: 0.96rem; font-weight: 500; color: var(--ink-soft);
  transition: color .2s ease;
}
.nav a:hover { color: var(--primary); }
.header-cta { display: inline-block; }
.menu-toggle {
  display: none; background: none; border: 0; padding: 8px;
  width: 40px; height: 40px;
}
.menu-toggle span {
  display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px auto;
  transition: transform .2s ease, opacity .2s ease;
}

@media (max-width: 880px) {
  .nav, .header-cta { display: none; }
  .menu-toggle { display: block; }
  .nav.open {
    display: flex; position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; background: #fff; border-bottom: 1px solid var(--line);
    padding: 16px 5%; gap: 1rem; box-shadow: var(--shadow-md);
  }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; color: #fff; overflow: hidden;
  padding: clamp(80px, 12vw, 140px) 0 clamp(80px, 12vw, 120px);
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(1200px 600px at 80% 10%, rgba(30,136,229,0.35), transparent 60%),
    radial-gradient(800px 500px at 10% 90%, rgba(11,74,143,0.55), transparent 60%),
    linear-gradient(135deg, #08233f 0%, #0b4a8f 60%, #125fa8 100%);
}
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}
.hero-inner { position: relative; z-index: 1; max-width: 860px; }
.hero .eyebrow { color: #7cc4ff; }
.hero-title { color: #fff; margin-bottom: .5em; }
.hero-title .accent { color: #7cc4ff; }
.hero-sub {
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  color: rgba(255,255,255,0.82); margin-bottom: 2rem;
}
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 2.5rem; }
.hero-badges {
  display: flex; flex-wrap: wrap; gap: 1.5rem 2rem;
  color: rgba(255,255,255,0.85); font-size: 0.95rem;
}
.hero-badges li { display: flex; align-items: center; gap: 8px; }
.dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: #7cc4ff; box-shadow: 0 0 10px rgba(124,196,255,0.8);
}

/* ---------- Sections ---------- */
.section { padding: clamp(70px, 9vw, 110px) 0; }
.section-alt { background: var(--bg-soft); }
.section-head { max-width: 760px; margin: 0 auto clamp(40px, 5vw, 60px); text-align: center; }
.section-desc { color: var(--ink-soft); font-size: 1.02rem; margin: 0; }

/* ---------- Value Banner ---------- */
.value-banner {
  position: relative;
  padding: clamp(70px, 10vw, 110px) 0;
  text-align: center;
  color: #fff;
  overflow: hidden;
  background:
    radial-gradient(900px 500px at 20% 20%, rgba(30,136,229,0.35), transparent 60%),
    radial-gradient(900px 500px at 80% 80%, rgba(124,196,255,0.22), transparent 60%),
    linear-gradient(135deg, #0b4a8f 0%, #125fa8 60%, #1e88e5 100%);
}
.value-banner::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.value-banner .container { position: relative; }
.value-eyebrow {
  color: #7cc4ff;
  letter-spacing: 0.22em;
  font-size: 0.82rem;
  font-weight: 700;
  margin: 0 0 14px;
  text-transform: uppercase;
}
.value-headline {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.015em;
  margin: 0 0 18px;
  line-height: 1.3;
}
.value-accent {
  background: linear-gradient(90deg, #7cc4ff, #e0f0ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 900;
}
.value-sub {
  color: rgba(255,255,255,0.88);
  font-size: clamp(1rem, 1.3vw, 1.1rem);
  max-width: 720px;
  margin: 0 auto;
}

/* ---------- Stats ---------- */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  margin-top: 1rem;
}
.stat {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 22px; text-align: center; transition: all .2s ease;
}
.stat:hover { border-color: transparent; box-shadow: var(--shadow-md); transform: translateY(-2px); }
.stat-num {
  font-size: 1.8rem; font-weight: 900; color: var(--primary);
  letter-spacing: -0.02em; margin-bottom: 4px;
}
.stat-label { color: var(--ink-soft); font-size: 0.92rem; }
@media (max-width: 780px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* ---------- Cards ---------- */
.cards {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 26px; transition: all .25s ease;
}
.card:hover { border-color: transparent; box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.card-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: linear-gradient(135deg, rgba(11,74,143,0.08), rgba(30,136,229,0.1));
  color: var(--primary); display: grid; place-items: center;
  margin-bottom: 18px;
}
.card-icon svg { width: 26px; height: 26px; }
.card h3 { margin-bottom: 8px; color: var(--ink); }
.card p { color: var(--ink-soft); font-size: 0.96rem; margin: 0; }
@media (max-width: 900px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .cards { grid-template-columns: 1fr; } }

/* ---------- Pillars ---------- */
.pillars {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
}
.pillar {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 36px 30px; position: relative;
}
.pillar-no {
  font-size: 0.95rem; font-weight: 800; color: var(--accent);
  letter-spacing: 0.1em; margin-bottom: 14px;
}
.pillar h3 { font-size: 1.2rem; margin-bottom: 12px; }
.pillar p { color: var(--ink-soft); margin-bottom: 16px; }
.check-list li {
  position: relative; padding-left: 26px; margin-bottom: 8px;
  color: var(--ink-soft); font-size: 0.94rem;
}
.check-list li::before {
  content: ''; position: absolute; left: 0; top: 8px;
  width: 16px; height: 10px;
  border-left: 2.5px solid var(--accent);
  border-bottom: 2.5px solid var(--accent);
  transform: rotate(-45deg);
}
@media (max-width: 900px) { .pillars { grid-template-columns: 1fr; } }

/* ---------- Centers ---------- */
.centers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.center-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all .25s ease;
}
.center-card:hover {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}
.center-photo {
  aspect-ratio: 4 / 3;
  background: #e9eef5;
  overflow: hidden;
  position: relative;
}
.center-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ----- Carousel ----- */
.carousel {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #0a1a2e;
}
.slides {
  display: flex;
  width: 100%;
  height: 100%;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.slides::-webkit-scrollbar { display: none; }
.slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
  scroll-snap-align: start;
  scroll-snap-stop: always;
}
.slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  border: 0;
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  display: grid;
  place-items: center;
  color: var(--ink);
  transition: background .15s ease, opacity .15s ease;
  padding: 0 0 4px;
  z-index: 2;
  font-family: inherit;
}
.carousel-btn:hover { background: #fff; }
.carousel-btn:disabled { opacity: 0.35; cursor: default; }
.carousel-btn.prev { left: 10px; }
.carousel-btn.next { right: 10px; }
.dots {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  background: rgba(0, 0, 0, 0.42);
  padding: 6px 11px;
  border-radius: 999px;
  z-index: 2;
}
.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  border: 0;
  padding: 0;
  cursor: pointer;
  transition: background .15s ease, transform .15s ease;
}
.dot.active {
  background: #fff;
  transform: scale(1.2);
}
@media (max-width: 480px) {
  .carousel-btn { width: 36px; height: 36px; font-size: 22px; }
}

.center-photo-placeholder {
  background: linear-gradient(135deg, #e9f1fb 0%, #d7e6f4 100%);
  display: grid;
  place-items: center;
  color: var(--primary);
}
.placeholder-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
  padding: 20px;
}
.placeholder-inner svg {
  width: 42px;
  height: 42px;
  opacity: 0.7;
}
.placeholder-inner span {
  font-size: 0.92rem;
  color: var(--ink-soft);
  font-weight: 500;
  line-height: 1.5;
}

.center-body { padding: 24px 24px 28px; }
.center-body h3 {
  font-size: 1.22rem;
  margin-bottom: 4px;
  color: var(--ink);
}
.center-complex {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 16px;
  letter-spacing: 0.01em;
}
.center-meta {
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}
.center-meta li {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 10px;
  align-items: start;
}
.meta-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-top: 2px;
}
.meta-value {
  font-size: 0.94rem;
  color: var(--ink-soft);
  line-height: 1.5;
}
@media (max-width: 980px) { .centers { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .centers { grid-template-columns: 1fr; } }

/* ---------- Steps ---------- */
.steps {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px;
  counter-reset: step;
}
.step {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 20px; text-align: center; position: relative;
  transition: all .2s ease;
}
.step:hover { border-color: transparent; box-shadow: var(--shadow-md); transform: translateY(-2px); }
.step-no {
  width: 42px; height: 42px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; display: grid; place-items: center; margin: 0 auto 14px;
  font-weight: 800;
}
.step h3 { font-size: 1.02rem; margin-bottom: 6px; }
.step p { color: var(--ink-soft); font-size: 0.9rem; margin: 0; }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } }

/* ---------- Contact ---------- */
.contact { background: var(--bg-alt); }
.contact-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start;
}
.contact-copy h2 { margin-bottom: 14px; }
.contact-copy p { color: var(--ink-soft); margin-bottom: 2rem; }
.contact-list { display: grid; gap: 14px; }
.contact-list li {
  display: grid; grid-template-columns: 90px 1fr; gap: 14px;
  padding: 14px 0; border-bottom: 1px solid var(--line);
}
.contact-label {
  font-size: 0.85rem; font-weight: 700; color: var(--muted);
  letter-spacing: 0.06em; text-transform: uppercase;
}
.contact-value { color: var(--ink); font-weight: 500; }
a.contact-value:hover { color: var(--primary); }
.contact-note {
  display: inline-block;
  margin-top: 4px;
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--muted);
}

.contact-form {
  background: #fff; padding: 36px; border-radius: var(--radius);
  box-shadow: var(--shadow-md); border: 1px solid var(--line);
}
.field { margin-bottom: 18px; }
.field label {
  display: block; margin-bottom: 8px;
  font-size: 0.9rem; font-weight: 600; color: var(--ink);
}
.field input, .field textarea {
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--line);
  border-radius: var(--radius-sm); font-family: inherit; font-size: 0.98rem;
  transition: border-color .15s ease, box-shadow .15s ease;
  background: #fff; color: var(--ink);
}
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(30,136,229,0.15);
}
.field textarea { resize: vertical; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-note {
  font-size: 0.85rem; color: var(--muted); margin: 12px 0 0;
  text-align: center;
}
@media (max-width: 900px) {
  .contact-inner { grid-template-columns: 1fr; gap: 40px; }
  .contact-form { padding: 26px; }
  .row { grid-template-columns: 1fr; }
}

/* ---------- Footer ---------- */
.site-footer {
  background: #08233f; color: rgba(255,255,255,0.75);
  padding: 50px 0 30px;
}
.footer-inner { display: grid; gap: 24px; }
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}
.footer-logo-img {
  height: 44px;
  width: auto;
  max-width: 240px;
  display: block;
  object-fit: contain;
}
.footer-tagline {
  margin: 0;
  font-size: 0.92rem;
  color: rgba(255,255,255,0.7);
}
.footer-info p { margin: 2px 0; font-size: 0.9rem; color: rgba(255,255,255,0.65); }
.copyright {
  padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.85rem; color: rgba(255,255,255,0.5); margin: 0;
}