:root {
  color-scheme: light;
  --ink: #14231f;
  --muted: #62706d;
  --line: #d9e4df;
  --paper: #f7faf6;
  --white: #ffffff;
  --green: #1f8f63;
  --mint: #8fd8b4;
  --teal: #167d88;
  --blue: #3267a8;
  --sun: #f3bd3e;
  --graphite: #192825;
  --shadow: 0 22px 70px rgba(17, 35, 31, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family:
    "Pretendard",
    "Noto Sans KR",
    "Apple SD Gothic Neo",
    "Malgun Gothic",
    system-ui,
    sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  color: #fff;
  transition:
    background 180ms ease,
    box-shadow 180ms ease,
    padding 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(247, 250, 246, 0.94);
  color: var(--ink);
  box-shadow: 0 10px 36px rgba(25, 40, 37, 0.12);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 8px;
  font-weight: 900;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 17px;
  line-height: 1;
  letter-spacing: 0;
}

.brand small {
  margin-top: 4px;
  color: currentColor;
  font-size: 11px;
  opacity: 0.72;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
}

.main-nav a {
  padding: 10px 12px;
  border-radius: 8px;
}

.main-nav a:hover {
  background: rgba(255, 255, 255, 0.14);
}

.main-nav .language-link {
  margin-left: 6px;
  border: 1px solid currentColor;
}

.site-header.is-scrolled .main-nav a:hover,
.site-header.is-open .main-nav a:hover {
  background: rgba(31, 143, 99, 0.1);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 8px;
  color: inherit;
  background: transparent;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 92svh;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: #fff;
  background: var(--graphite);
}

.hero-media,
.hero-media img,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(9, 21, 22, 0.82) 0%, rgba(9, 21, 22, 0.52) 38%, rgba(9, 21, 22, 0.08) 76%),
    linear-gradient(0deg, rgba(9, 21, 22, 0.64) 0%, rgba(9, 21, 22, 0) 44%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(760px, 100%);
  padding: 150px clamp(18px, 5vw, 72px) clamp(28px, 7vw, 78px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--sun);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  word-break: keep-all;
}

h1,
h2 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: 0;
}

h1 {
  max-width: 660px;
  font-size: clamp(46px, 7vw, 88px);
}

h2 {
  font-size: clamp(32px, 4vw, 56px);
}

h3 {
  margin: 0 0 12px;
  font-size: 22px;
}

.hero-lead {
  max-width: 620px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  gap: 9px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 850;
  line-height: 1.2;
  transition:
    transform 160ms ease,
    background 160ms ease,
    border-color 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: var(--green);
  color: #fff;
  box-shadow: 0 18px 44px rgba(31, 143, 99, 0.28);
}

.button.secondary {
  border-color: rgba(255, 255, 255, 0.45);
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 680px;
  margin-top: 54px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(16px);
}

.hero-metrics div {
  min-height: 104px;
  padding: 20px;
  background: rgba(8, 23, 23, 0.36);
}

.hero-metrics strong,
.hero-metrics span {
  display: block;
}

.hero-metrics strong {
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1;
}

.hero-metrics span {
  margin-top: 9px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  line-height: 1.35;
}

.section {
  padding: clamp(72px, 9vw, 126px) clamp(18px, 5vw, 72px);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 38px;
}

.section-heading.wide {
  max-width: 980px;
}

.section-heading p:not(.eyebrow),
.re100-copy p,
.contact p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.intro {
  background: var(--white);
}

.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.intro-grid article,
.business-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 16px 44px rgba(31, 46, 42, 0.06);
}

.intro-grid article {
  min-height: 260px;
  padding: 30px;
}

.icon {
  display: grid;
  width: 46px;
  height: 46px;
  margin-bottom: 42px;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: linear-gradient(135deg, var(--green), var(--teal));
  font-size: 20px;
}

.intro-grid p,
.business-card p {
  color: var(--muted);
  line-height: 1.72;
}

.business-band {
  background:
    linear-gradient(180deg, #eef6f2 0%, #f7faf6 100%);
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.business-card {
  position: relative;
  display: flex;
  min-height: 198px;
  flex-direction: column;
  padding: 22px;
  overflow: hidden;
}

.business-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--accent, var(--green));
}

.business-card .domain {
  margin-top: auto;
  color: var(--accent, var(--green));
  font-size: 13px;
  font-weight: 850;
}

.business-card h3 {
  margin-top: 10px;
  font-size: 21px;
}

.business-card p {
  margin: 0 0 22px;
  font-size: 15px;
}

.re100 {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(320px, 1fr);
  gap: clamp(34px, 6vw, 86px);
  align-items: center;
  background: #fff;
}

.focus-list {
  display: grid;
  gap: 12px;
}

.focus-list div {
  display: grid;
  grid-template-columns: 64px 1fr;
  align-items: center;
  min-height: 82px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(143, 216, 180, 0.16), rgba(50, 103, 168, 0.06)),
    #fff;
}

.focus-list span {
  color: var(--teal);
  font-size: 15px;
  font-weight: 900;
}

.focus-list strong {
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.38;
}

.contact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  color: #fff;
  background:
    linear-gradient(120deg, rgba(20, 35, 31, 0.96), rgba(22, 125, 136, 0.9)),
    var(--graphite);
}

.contact > div {
  max-width: 850px;
}

.contact p {
  color: rgba(255, 255, 255, 0.74);
}

.site-footer {
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  gap: 8px;
  padding: 24px clamp(18px, 5vw, 72px);
  color: rgba(255, 255, 255, 0.72);
  background: #101b18;
}

.site-footer .footer-title {
  color: #fff;
  font-size: 18px;
  line-height: 1.2;
}

.site-footer small {
  color: rgba(255, 255, 255, 0.62);
  font-size: 13px;
}

@media (max-width: 1040px) {
  .business-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .intro-grid,
  .re100 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 780px) {
  .site-header {
    padding: 14px 18px;
  }

  .nav-toggle {
    display: grid;
  }

  .main-nav {
    position: absolute;
    top: 74px;
    left: 18px;
    right: 18px;
    display: none;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.96);
    color: var(--ink);
    box-shadow: var(--shadow);
  }

  .main-nav.is-open {
    display: grid;
  }

  .main-nav a {
    padding: 14px;
  }

  .main-nav .language-link {
    margin-left: 0;
  }

  .hero {
    min-height: 880px;
  }

  .hero-media img {
    object-position: 58% center;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(9, 21, 22, 0.86) 0%, rgba(9, 21, 22, 0.68) 58%, rgba(9, 21, 22, 0.2) 100%),
      linear-gradient(0deg, rgba(9, 21, 22, 0.72) 0%, rgba(9, 21, 22, 0.06) 54%);
  }

  .hero-content {
    padding-top: 126px;
  }

  .hero-metrics {
    grid-template-columns: 1fr;
  }

  .business-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contact {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 540px) {
  h1 {
    font-size: 42px;
  }

  .brand small {
    display: none;
  }

  .hero {
    min-height: 820px;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .business-grid {
    grid-template-columns: 1fr;
  }

  .intro-grid article,
  .business-card {
    min-height: auto;
  }

  .focus-list div {
    grid-template-columns: 48px 1fr;
  }
}