:root {
  color-scheme: light;
  font-family:
    Pretendard,
    "Apple SD Gothic Neo",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  color: #11181f;
  background: #f7f9fa;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  min-width: 320px;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
a:focus-visible {
  outline: 3px solid #2ba593;
  outline-offset: 4px;
}
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 10;
  padding: 12px 16px;
  background: #fff;
}
.skip-link:focus {
  top: 12px;
}

.site-header,
.hero-inner,
.details,
.open-core,
footer {
  width: min(100% - 64px, 1200px);
  margin-inline: auto;
}
.site-header {
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 22px;
  font-weight: 750;
  letter-spacing: -0.05em;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 31px;
  height: 31px;
  border-radius: 9px 4px 9px 4px;
  background: #0f6f61;
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.07em;
}
nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 3vw, 38px);
  font-size: 14px;
  font-weight: 650;
}
nav a:not(.nav-app):hover,
footer a:hover {
  color: #0f6f61;
}
.nav-app {
  padding: 12px 18px;
  border: 1px solid #bcc9cc;
  border-radius: 8px;
}
.nav-app:hover {
  border-color: #0f6f61;
  color: #0f6f61;
}

.hero {
  background: #111b20;
  color: #fff;
}
.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(340px, 0.88fr);
  gap: clamp(48px, 7vw, 100px);
  align-items: center;
  min-height: 620px;
  padding-block: 92px 108px;
}
.eyebrow {
  margin: 0 0 22px;
  color: #16806f;
  font-size: 14px;
  font-weight: 750;
  letter-spacing: 0.02em;
}
.hero .eyebrow {
  color: #8ce6ce;
}
h1,
h2,
h3,
p {
  margin-top: 0;
}
h1 {
  margin-bottom: 26px;
  font-size: clamp(42px, 5vw, 70px);
  line-height: 1.17;
  letter-spacing: -0.07em;
  font-weight: 750;
  word-break: keep-all;
}
.hero-description {
  max-width: 570px;
  margin-bottom: 33px;
  color: #c5d2d5;
  font-size: 18px;
  line-height: 1.75;
  word-break: keep-all;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.button {
  display: inline-flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  min-height: 52px;
  padding: 0 20px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 750;
  transition:
    background 0.15s,
    transform 0.15s;
}
.button:hover {
  transform: translateY(-2px);
}
.button-primary {
  background: #7fddc3;
  color: #10251e;
}
.button-primary:hover {
  background: #a4ebd7;
}
.button-secondary {
  border: 1px solid #52636a;
  color: #fff;
}
.button-secondary:hover {
  background: #29383f;
}
.access-note {
  margin: 21px 0 0;
  color: #aababe;
  font-size: 14px;
  line-height: 1.65;
}
.hero-process {
  border: 1px solid #405057;
  border-radius: 14px;
  background: #1b292e;
  box-shadow: 0 24px 50px rgb(0 0 0 / 13%);
}
.process-heading {
  display: flex;
  justify-content: space-between;
  gap: 15px;
  padding: 23px 26px;
  border-bottom: 1px solid #405057;
  color: #bdd4d0;
  font-size: 13px;
  font-weight: 700;
}
.hero-process ol {
  list-style: none;
  padding: 0 26px;
  margin: 0;
}
.hero-process li {
  display: flex;
  gap: 20px;
  padding: 27px 0;
  border-bottom: 1px solid #35474e;
}
.hero-process li:last-child {
  border-bottom: 0;
}
.step-number {
  color: #8ce6ce;
  font-size: 13px;
  font-weight: 700;
  padding-top: 4px;
}
.hero-process strong {
  display: block;
  margin-bottom: 7px;
  font-size: 20px;
  letter-spacing: -0.04em;
}
.hero-process p {
  margin: 0;
  color: #afc0c4;
  font-size: 15px;
  line-height: 1.6;
}

.details {
  padding-block: 112px 124px;
}
.section-intro {
  max-width: 720px;
}
h2 {
  margin-bottom: 21px;
  font-size: clamp(32px, 3.5vw, 47px);
  line-height: 1.23;
  letter-spacing: -0.06em;
  word-break: keep-all;
}
.section-intro > p:last-child,
.open-core p:not(.eyebrow) {
  color: #52616a;
  font-size: 17px;
  line-height: 1.8;
  word-break: keep-all;
}
.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 15px;
  margin-top: 55px;
}
.detail-grid article {
  min-height: 222px;
  padding: 29px;
  border: 1px solid #d9e1e3;
  border-radius: 12px;
  background: #fff;
}
.detail-index {
  color: #0f6f61;
  font-size: 13px;
  font-weight: 750;
}
h3 {
  margin: 32px 0 11px;
  font-size: 22px;
  letter-spacing: -0.045em;
}
.detail-grid p {
  margin: 0;
  color: #52616a;
  font-size: 16px;
  line-height: 1.65;
  word-break: keep-all;
}
.open-core {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 48px;
  padding-block: 65px 76px;
  border-top: 1px solid #cad5d8;
}
.open-core > div {
  max-width: 680px;
}
.open-core p:not(.eyebrow) {
  margin-bottom: 0;
}
.text-link {
  flex: none;
  padding-bottom: 7px;
  border-bottom: 1px solid #0f6f61;
  color: #0f6f61;
  font-size: 16px;
  font-weight: 750;
}
.text-link:hover {
  color: #09493f;
}
footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
  padding-block: 31px 40px;
  border-top: 1px solid #dce4e6;
  color: #34444d;
  font-size: 14px;
  font-weight: 650;
}
.footer-muted {
  color: #788990;
  font-weight: 400;
}
.footer-legal {
  display: flex;
  flex-basis: 100%;
  flex-wrap: wrap;
  gap: 4px 18px;
  margin: 0;
  color: #788990;
  font-size: 12px;
  font-weight: 400;
  line-height: 1.6;
}
.footer-legal div {
  display: flex;
  gap: 6px;
}
.footer-legal dt {
  font-weight: 650;
}
.footer-legal dd {
  min-width: 0;
  margin: 0;
}

@media (max-width: 850px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 45px;
    padding-block: 74px 80px;
  }
  .hero-process {
    max-width: 620px;
  }
  .detail-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .detail-grid article {
    min-height: 0;
  }
  h3 {
    margin-top: 20px;
  }
}
@media (max-width: 610px) {
  .site-header,
  .hero-inner,
  .details,
  .open-core,
  footer {
    width: min(100% - 36px, 1200px);
  }
  .site-header {
    min-height: 75px;
  }
  .brand {
    font-size: 19px;
  }
  nav {
    gap: 13px;
  }
  nav a:first-child,
  nav a:nth-child(2) {
    display: none;
  }
  .nav-app {
    padding: 9px 11px;
    font-size: 13px;
  }
  .hero-inner {
    padding-block: 65px 69px;
  }
  h1 {
    font-size: clamp(38px, 10vw, 54px);
  }
  .hero-description {
    font-size: 16px;
  }
  .hero-actions {
    flex-direction: column;
  }
  .button {
    width: 100%;
  }
  .hero-process ol {
    padding-inline: 21px;
  }
  .process-heading {
    padding-inline: 21px;
  }
  .details {
    padding-block: 82px 85px;
  }
  .detail-grid {
    margin-top: 35px;
  }
  .open-core {
    display: block;
    padding-block: 52px 62px;
  }
  .text-link {
    display: inline-block;
    margin-top: 27px;
  }
  footer {
    flex-direction: column;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .button {
    transition: none;
  }
  .button:hover {
    transform: none;
  }
}