:root {
  --ink: #07142f;
  --muted: #5a6a86;
  --line: #d8e0ed;
  --paper: #ffffff;
  --soft: #f3f7fb;
  --blue: #0757d8;
  --blue-deep: #061642;
  --cyan: #28c5f5;
  --green: #18a46d;
  --shadow: 0 18px 48px rgba(7, 20, 47, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--soft);
  font-family: "Noto Sans KR", "Apple SD Gothic Neo", "Segoe UI", system-ui, sans-serif;
  overflow-x: hidden;
}

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

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  right: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 clamp(20px, 5vw, 72px);
  color: #fff;
  background: rgba(5, 20, 61, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
}

.brand img,
.site-footer img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 14px;
  font-weight: 800;
  color: #dbeafe;
}

.site-nav a:hover {
  color: #fff;
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.menu-button span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: #fff;
}

.hero {
  position: relative;
  min-height: 86vh;
  padding: 64px clamp(20px, 6vw, 84px) 56px;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
  background: var(--blue-deep);
}

.hero-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 63% center;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, #051031 0%, #05143d 43%, rgba(5, 20, 61, 0.42) 72%, rgba(5, 20, 61, 0.12) 100%),
    linear-gradient(0deg, rgba(4, 14, 42, 0.82) 0%, rgba(4, 14, 42, 0.08) 35%);
}

.hero-content {
  position: relative;
  width: 100%;
  max-width: 720px;
  padding-top: 40px;
  min-width: 0;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1,
.section h2 {
  margin: 0;
  font-weight: 950;
  line-height: 1.06;
  overflow-wrap: anywhere;
}

.hero h1 {
  max-width: 700px;
  font-size: clamp(46px, 9vw, 96px);
}

.hero-copy {
  max-width: 590px;
  margin: 22px 0 0;
  color: #dbeafe;
  font-size: clamp(18px, 2.4vw, 24px);
  line-height: 1.7;
}

.hero-copy span {
  display: block;
}

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

.primary-action,
.secondary-action,
.text-action {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 8px;
  font-weight: 900;
}

.primary-action {
  color: var(--blue-deep);
  background: #fff;
  box-shadow: var(--shadow);
}

.secondary-action {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.08);
}

.section {
  padding: clamp(64px, 9vw, 112px) clamp(20px, 6vw, 84px);
}

.intro-section {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(280px, 1.2fr);
  gap: clamp(32px, 6vw, 72px);
  background: #fff;
}

.section-heading h2 {
  max-width: 760px;
  font-size: clamp(34px, 5vw, 58px);
}

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

.intro-copy {
  display: grid;
  gap: 18px;
  align-content: start;
}

.intro-copy p {
  margin: 0;
}

.preview-section {
  color: #fff;
  background: #081633;
}

.light {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(280px, 0.8fr);
  gap: clamp(24px, 5vw, 54px);
  align-items: end;
  margin-bottom: 36px;
}

.light p:not(.eyebrow) {
  margin: 0;
  color: #c6d7f5;
}

.screen-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.screen-card {
  margin: 0;
  padding: 12px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 24px 52px rgba(0, 0, 0, 0.28);
}

.screen-card.raised {
  transform: translateY(28px);
}

.screen-card img {
  width: 100%;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  object-position: top center;
  border-radius: 6px;
  background: #0b2b72;
}

.screen-card figcaption {
  display: grid;
  gap: 6px;
  padding: 16px 4px 2px;
}

.screen-card strong {
  font-size: 18px;
}

.screen-card span {
  color: #bdd4ff;
  line-height: 1.5;
}

.value-section {
  background: #f6f8fc;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}

.value-grid article {
  min-height: 230px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.value-code {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: #fff;
  font-weight: 900;
  border-radius: 8px;
  background: var(--blue);
}

.value-grid h3 {
  margin: 28px 0 10px;
  font-size: 23px;
}

.value-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.privacy-section {
  background: #fff;
}

.privacy-panel {
  display: grid;
  grid-template-columns: minmax(260px, 0.95fr) minmax(280px, 1.05fr);
  gap: 28px;
  align-items: start;
  padding: clamp(28px, 4vw, 42px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbff;
}

.privacy-panel h2 {
  font-size: clamp(28px, 4vw, 44px);
}

.privacy-panel ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.9;
}

.text-action {
  grid-column: 1 / -1;
  justify-self: start;
  color: #fff;
  background: var(--blue);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(20px, 6vw, 84px);
  color: #dbeafe;
  background: #061642;
}

.site-footer div {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
}

.site-footer span {
  color: #9db5df;
}

.policy-page {
  padding-top: 64px;
  background: #fff;
}

.policy-hero {
  padding: clamp(72px, 10vw, 116px) clamp(20px, 6vw, 84px) clamp(44px, 7vw, 72px);
  color: #fff;
  background: linear-gradient(120deg, #061642 0%, #0757d8 100%);
}

.policy-hero h1 {
  max-width: 880px;
  margin: 0;
  font-size: clamp(38px, 6vw, 70px);
  line-height: 1.05;
}

.policy-hero p:not(.eyebrow) {
  margin: 22px 0 0;
  color: #dbeafe;
  font-size: 18px;
}

.policy-content {
  width: 100%;
  max-width: 900px;
  padding: clamp(48px, 7vw, 80px) clamp(20px, 6vw, 84px);
  overflow-wrap: break-word;
}

.policy-content h2 {
  margin: 34px 0 12px;
  font-size: 28px;
  line-height: 1.2;
}

.policy-content h2:first-child {
  margin-top: 0;
}

.policy-content p,
.policy-content li {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.8;
}

.policy-content a {
  color: var(--blue);
  font-weight: 800;
}

@media (max-width: 900px) {
  .menu-button {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 64px;
    right: 16px;
    left: 16px;
    display: none;
    padding: 12px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 8px;
    background: rgba(5, 20, 61, 0.95);
  }

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

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

  .intro-section,
  .light,
  .privacy-panel {
    grid-template-columns: 1fr;
  }

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

  .screen-card.raised {
    transform: none;
  }

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

@media (max-width: 560px) {
  .site-header {
    padding-inline: 14px;
  }

  .brand span {
    font-size: 14px;
  }

  .hero {
    min-height: 82vh;
    padding-inline: 20px;
  }

  .hero-content,
  .hero-copy,
  .section-heading,
  .intro-copy,
  .privacy-panel,
  .policy-content {
    width: 100%;
    max-width: calc(100vw - 40px);
    min-width: 0;
  }

  .hero-image {
    object-position: 68% center;
  }

  .hero-shade {
    background:
      linear-gradient(90deg, #051031 0%, rgba(5, 20, 61, 0.94) 72%, rgba(5, 20, 61, 0.52) 100%),
      linear-gradient(0deg, rgba(4, 14, 42, 0.86) 0%, rgba(4, 14, 42, 0.08) 45%);
  }

  .hero h1 {
    max-width: 8ch;
    font-size: 44px;
  }

  .section-heading h2 {
    font-size: 34px;
    line-height: 1.16;
  }

  .hero-copy,
  .section-heading > p:not(.eyebrow),
  .intro-copy {
    font-size: 17px;
    overflow-wrap: anywhere;
    word-break: normal;
  }

  .section-heading h2 {
    word-break: normal;
  }

  .primary-action,
  .secondary-action,
  .text-action {
    width: 100%;
    justify-content: center;
  }
}