:root {
  color-scheme: light;
  --green-900: #133f35;
  --green-700: #1f6f5b;
  --green-100: #e8f4ef;
  --ink: #19211d;
  --muted: #58645f;
  --line: #dde5e1;
  --paper: #ffffff;
  --soft: #f6f8f5;
  --amber: #c8872a;
  --blue: #2d668b;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family:
    Pretendard,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    'Noto Sans KR',
    system-ui,
    sans-serif;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0;
  word-break: keep-all;
  overflow-wrap: break-word;
}

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

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 40px;
  background: rgb(255 255 255 / 88%);
  border-bottom: 1px solid rgb(221 229 225 / 78%);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--green-900);
}

.brand img {
  width: 34px;
  height: 34px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 700;
  color: #2e3a35;
}

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

.site-nav a:focus-visible,
.site-nav a:hover,
.brand:focus-visible,
.primary-link:focus-visible,
.secondary-link:focus-visible {
  outline: 3px solid rgb(31 111 91 / 28%);
  outline-offset: 3px;
}

.hero {
  position: relative;
  min-height: 88vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 116px 40px 84px;
  isolation: isolate;
}

.hero-image {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-shade {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(
      90deg,
      rgb(255 255 255 / 96%) 0%,
      rgb(255 255 255 / 82%) 38%,
      rgb(255 255 255 / 24%) 72%
    ),
    linear-gradient(
      180deg,
      rgb(255 255 255 / 74%) 0%,
      rgb(255 255 255 / 0%) 38%,
      rgb(19 63 53 / 18%) 100%
    );
}

.hero-content {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green-700);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.35;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  color: var(--green-900);
  font-size: 72px;
  line-height: 1;
  font-weight: 900;
}

.hero-copy {
  max-width: 560px;
  margin: 26px 0 0;
  color: #24312b;
  font-size: 24px;
  line-height: 1.45;
  font-weight: 700;
}

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

.primary-link,
.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border-radius: 8px;
  font-weight: 800;
}

.primary-link {
  background: var(--green-700);
  color: #ffffff;
}

.secondary-link {
  background: rgb(255 255 255 / 78%);
  color: var(--green-900);
  border: 1px solid rgb(31 111 91 / 24%);
}

.intro,
.focus-band,
.principles {
  padding: 86px 40px;
}

.intro {
  display: grid;
  grid-template-columns: minmax(240px, 0.8fr) minmax(300px, 1fr);
  gap: 56px;
  max-width: 1120px;
  margin: 0 auto;
}

.section-copy h2 {
  margin: 0;
  color: var(--ink);
  font-size: 34px;
  line-height: 1.28;
  font-weight: 850;
}

.intro > p {
  margin: 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.75;
  font-weight: 500;
}

.focus-band {
  background: var(--soft);
  border-block: 1px solid var(--line);
}

.focus-band > .section-copy,
.principles > .section-copy {
  max-width: 1120px;
  margin: 0 auto;
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  max-width: 1120px;
  margin: 34px auto 0;
}

.focus-grid article {
  min-height: 260px;
  padding: 28px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.number {
  display: inline-flex;
  margin-bottom: 34px;
  color: var(--amber);
  font-size: 15px;
  font-weight: 900;
}

.focus-grid h3,
.principle-list h3 {
  margin: 0 0 12px;
  color: var(--ink);
  font-size: 22px;
  line-height: 1.35;
}

.focus-grid p,
.principle-list p {
  margin: 0;
  color: var(--muted);
  font-weight: 500;
}

.principles {
  background: #ffffff;
}

.principle-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 1120px;
  margin: 34px auto 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.principle-list div {
  min-height: 178px;
  padding: 28px;
  background: #ffffff;
}

.principle-list div:nth-child(2) h3 {
  color: var(--blue);
}

.site-footer {
  padding: 36px 40px;
  color: #ffffff;
  background: var(--green-900);
}

.footer-inner {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(280px, 1.2fr);
  gap: 24px 48px;
  max-width: 1120px;
  margin: 0 auto;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-brand strong {
  font-size: 22px;
}

.footer-brand span {
  color: rgb(255 255 255 / 82%);
  font-weight: 600;
}

.footer-links {
  display: flex;
  justify-content: flex-end;
  gap: 16px;
  font-weight: 800;
}

.footer-links a,
.company-info a {
  color: #ffffff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.company-info {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 4px 0 0;
  color: rgb(255 255 255 / 78%);
  font-size: 14px;
  line-height: 1.55;
}

.company-info div {
  display: flex;
  gap: 6px;
}

.company-info dt {
  color: rgb(255 255 255 / 62%);
  font-weight: 700;
}

.company-info dd {
  margin: 0;
  font-weight: 600;
}

@media (max-width: 860px) {
  .site-header {
    padding: 14px 20px;
  }

  .site-nav {
    gap: 2px;
  }

  .site-nav a {
    padding: 7px 8px;
  }

  .hero {
    min-height: 82vh;
    padding: 104px 24px 64px;
  }

  .hero-shade {
    background: linear-gradient(
        180deg,
        rgb(255 255 255 / 96%) 0%,
        rgb(255 255 255 / 84%) 48%,
        rgb(255 255 255 / 28%) 100%
      ),
      linear-gradient(90deg, rgb(255 255 255 / 94%) 0%, rgb(255 255 255 / 45%) 100%);
  }

  .hero h1 {
    font-size: 56px;
  }

  .hero-copy {
    font-size: 21px;
  }

  .intro,
  .focus-band,
  .principles {
    padding: 64px 24px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-content: flex-start;
  }

  .intro,
  .focus-grid,
  .principle-list {
    grid-template-columns: 1fr;
  }

  .intro {
    gap: 22px;
  }

  .section-copy h2 {
    font-size: 29px;
  }

  .intro > p {
    font-size: 17px;
  }

  .focus-grid article,
  .principle-list div {
    min-height: auto;
  }
}

@media (max-width: 520px) {
  .site-header {
    position: absolute;
    align-items: flex-start;
    padding: 14px 16px;
  }

  .brand {
    font-size: 20px;
  }

  .brand img {
    width: 30px;
    height: 30px;
  }

  .site-nav {
    flex-wrap: wrap;
    justify-content: flex-end;
    max-width: 190px;
    font-size: 14px;
  }

  .hero {
    min-height: 760px;
    padding: 118px 18px 56px;
    align-items: flex-start;
  }

  .hero h1 {
    font-size: 48px;
  }

  .hero-copy {
    font-size: 19px;
  }

  .primary-link,
  .secondary-link {
    width: 100%;
  }

  .intro,
  .focus-band,
  .principles {
    padding: 56px 18px;
  }

  .company-info div {
    flex-direction: column;
    gap: 0;
  }

  .section-copy h2 {
    font-size: 25px;
  }

  .focus-grid article,
  .principle-list div {
    padding: 24px;
  }

  .site-footer {
    padding: 26px 18px;
  }

  .footer-links {
    flex-direction: column;
    gap: 8px;
  }

  .company-info {
    flex-direction: column;
    gap: 10px;
  }
}