:root {
  --bg: #ffffff;
  --text: #101010;
  --muted: #666666;
  --soft: #f7f7f7;
  --line: #e8e8e8;
  --green: #013328;
  --green-soft: #e8f1ed;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans KR", "Apple SD Gothic Neo", Arial, sans-serif;
  line-height: 1.65;
}

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

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.nav-wrap {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

.nav {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 650;
  letter-spacing: 0.02em;
}

.brand img {
  width: 38px;
  height: 38px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  font-size: 15px;
  color: #252525;
}

.nav-links a:hover,
.button:hover {
  opacity: 0.72;
}

.hero {
  padding: 112px 0 84px;
  text-align: center;
}

.hero-logo {
  width: 176px;
  height: auto;
  object-fit: contain;
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 14px;
  color: var(--muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(36px, 6vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.04em;
  font-weight: 720;
}

.hero p {
  margin: 20px auto 0;
  max-width: 720px;
  font-size: clamp(18px, 2vw, 22px);
  color: var(--muted);
}

.section {
  padding: 64px 0;
  border-top: 1px solid var(--line);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.section h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.section-desc {
  margin: 8px 0 0;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.card {
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 32px;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 28px;
  letter-spacing: -0.02em;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.product-title-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.app-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  object-fit: cover;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #111111;
  border-radius: 999px;
  padding: 11px 17px;
  font-size: 14px;
  font-weight: 560;
}

.button.dark {
  background: #111111;
  color: #ffffff;
}

.button.secondary {
  border-color: var(--line);
  color: var(--muted);
  background: #ffffff;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 36px;
  align-items: center;
}

.labrary-panel {
  background: linear-gradient(145deg, #013328, #00513f);
  border-radius: 36px;
  padding: 56px 28px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.labrary-panel img {
  width: min(320px, 78%);
  height: auto;
  border-radius: 28px;
}

.store-card {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 24px;
}

.store-card + .store-card {
  margin-top: 14px;
}

.store-card h3 {
  margin: 0 0 8px;
  font-size: 22px;
}

.store-card p {
  margin: 0 0 16px;
  color: var(--muted);
}

.contact-box {
  background: var(--green-soft);
  border: 1px solid #d7e6df;
  border-radius: 28px;
  padding: 34px;
}

.contact-box p {
  margin: 8px 0 0;
  color: var(--muted);
}

.footer {
  padding: 42px 0 64px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.legal {
  max-width: 860px;
  padding: 58px 0 86px;
}

.legal h1 {
  font-size: 38px;
  letter-spacing: -0.03em;
  font-weight: 720;
  margin-bottom: 8px;
}

.legal .updated {
  color: var(--muted);
  margin-bottom: 36px;
}

.legal h2 {
  margin-top: 36px;
  font-size: 22px;
}

.legal p,
.legal li {
  color: #333333;
}

.legal ul {
  padding-left: 20px;
}

.notice {
  background: #fff8e6;
  border: 1px solid #ffe2a8;
  border-radius: 16px;
  padding: 16px;
  color: #5a4200;
  margin: 24px 0;
}

@media (max-width: 760px) {
  .nav {
    height: auto;
    padding: 18px 0;
    align-items: flex-start;
    gap: 16px;
    flex-direction: column;
  }

  .nav-links {
    gap: 18px;
    flex-wrap: wrap;
  }

  .hero {
    padding: 72px 0 60px;
  }

  .hero-logo {
    width: 140px;
  }

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

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

  .card {
    min-height: 230px;
  }
}