:root {
  --bg: #f7f2ea;
  --bg-soft: #fffaf2;
  --surface: #ffffff;
  --surface-warm: #fbf4e8;
  --text: #17201a;
  --muted: #657061;
  --soft: #8a7b69;
  --border: #dfd4c4;
  --border-strong: #cdbfae;
  --accent: #1f3d2b;
  --accent-2: #9a6b2f;
  --accent-soft: #e9dfcf;
  --shadow: 0 24px 80px rgba(42, 31, 17, 0.12);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: radial-gradient(circle at top right, rgba(233, 223, 207, 0.85), transparent 32rem), var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", "Apple SD Gothic Neo", sans-serif;
  line-height: 1.6;
}

body.policy-page {
  background: var(--bg);
}

a {
  color: inherit;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(31, 61, 43, 0.35);
  outline-offset: 4px;
  border-radius: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(223, 212, 196, 0.82);
  background: rgba(255, 250, 242, 0.88);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  text-decoration: none;
  font-weight: 850;
  letter-spacing: -0.04em;
  font-size: 1.45rem;
}

.brand span {
  color: var(--soft);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.93rem;
}

.nav-links a {
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--text);
}

main {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: center;
  padding: clamp(56px, 8vw, 104px) 0 72px;
}

.hero-copy h1 {
  margin: 0;
  font-size: clamp(3.3rem, 8vw, 7.3rem);
  line-height: 0.94;
  letter-spacing: -0.085em;
  font-weight: 900;
  max-width: 820px;
}

.hero-copy .english {
  margin: 22px 0 0;
  color: var(--soft);
  font-size: clamp(1rem, 2vw, 1.2rem);
  letter-spacing: -0.02em;
}

.hero-copy .lead {
  margin: 24px 0 0;
  max-width: 650px;
  color: var(--muted);
  font-size: clamp(1.04rem, 2vw, 1.18rem);
  word-break: keep-all;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--text);
  background: var(--text);
  color: var(--bg-soft);
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.button.secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}

.coming-soon-note {
  color: var(--soft);
  font-size: 0.94rem;
}

.product-card {
  position: relative;
  border: 1px solid var(--border);
  background: linear-gradient(145deg, var(--bg-soft), #f3eadc);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  padding: clamp(22px, 4vw, 34px);
  overflow: hidden;
}

.product-card::before {
  content: "";
  position: absolute;
  inset: 18px 18px auto auto;
  width: 118px;
  height: 118px;
  border-radius: 999px;
  background: rgba(154, 107, 47, 0.11);
  filter: blur(2px);
}

.card-topline,
.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--soft);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

.japanese-word {
  margin: 44px 0 0;
  font-size: clamp(4.2rem, 10vw, 7.6rem);
  line-height: 0.9;
  font-weight: 900;
  letter-spacing: -0.08em;
}

.reading {
  margin: 16px 0 0;
  font-size: 1.25rem;
  color: var(--muted);
}

.meaning {
  color: var(--text);
  font-weight: 800;
}

.mnemonic {
  margin-top: 30px;
  padding: 18px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.46);
  border-radius: var(--radius-md);
  color: var(--muted);
  word-break: keep-all;
}

.mnemonic strong {
  display: block;
  color: var(--text);
  margin-bottom: 5px;
}

.section {
  padding: clamp(56px, 8vw, 96px) 0;
  border-top: 1px solid rgba(223, 212, 196, 0.8);
}

.section.compact {
  padding-top: 44px;
}

.section-label {
  margin: 0 0 14px;
  color: var(--accent-2);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section h2,
.policy-layout h1 {
  margin: 0;
  font-size: clamp(2.25rem, 5vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: -0.065em;
  font-weight: 900;
}

.section .intro,
.policy-intro {
  margin: 18px 0 0;
  max-width: 760px;
  color: var(--muted);
  font-size: 1.08rem;
  word-break: keep-all;
}

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

.feature-card,
.policy-card,
.callout {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(255, 250, 242, 0.72);
}

.feature-card {
  padding: 24px;
  min-height: 210px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.feature-number {
  color: var(--accent-2);
  font-weight: 900;
  letter-spacing: -0.04em;
}

.feature-card h3,
.policy-card h2,
.policy-card h3 {
  margin: 18px 0 8px;
  font-size: 1.28rem;
  line-height: 1.25;
  letter-spacing: -0.04em;
}

.feature-card p,
.policy-card p,
.policy-card li,
.callout p,
.footer p {
  color: var(--muted);
  word-break: keep-all;
}

.company-band {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 28px;
  align-items: start;
  padding: clamp(28px, 5vw, 44px);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  background: var(--text);
  color: var(--bg-soft);
}

.company-band p {
  color: rgba(255, 250, 242, 0.76);
  margin: 0;
  font-size: 1.08rem;
}

.company-band h2 {
  color: var(--bg-soft);
}

.policy-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.32fr) minmax(0, 0.68fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
  padding: clamp(48px, 7vw, 88px) 0;
}

.policy-sidebar {
  position: sticky;
  top: 104px;
  display: grid;
  gap: 14px;
}

.policy-sidebar a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.policy-sidebar a:hover {
  color: var(--text);
}

.policy-content {
  display: grid;
  gap: 18px;
}

.policy-card {
  padding: clamp(22px, 4vw, 34px);
}

.policy-card h2:first-child,
.policy-card h3:first-child {
  margin-top: 0;
}

.policy-card ul,
.policy-card ol {
  padding-left: 1.2rem;
  margin: 12px 0 0;
}

.policy-card li + li {
  margin-top: 8px;
}

.callout {
  padding: 20px;
  background: #efe4d4;
}

.callout strong {
  display: block;
  margin-bottom: 4px;
}

.mail-button {
  margin-top: 14px;
}

.footer {
  border-top: 1px solid rgba(223, 212, 196, 0.82);
  padding: 34px 0;
  background: rgba(255, 250, 242, 0.52);
}

.footer-inner {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 22px;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.footer a {
  color: var(--muted);
  text-decoration: none;
}

.footer a:hover {
  color: var(--text);
}

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

  .nav-links {
    justify-content: flex-start;
    gap: 12px 16px;
  }

  .hero,
  .policy-layout,
  .company-band {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 50px;
  }

  .product-card {
    max-width: 520px;
  }

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

  .policy-sidebar {
    position: static;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px;
    background: rgba(255, 250, 242, 0.72);
  }
}

@media (max-width: 560px) {
  main,
  .nav,
  .footer-inner {
    width: min(100% - 28px, var(--max));
  }

  .hero-copy h1 {
    font-size: clamp(3rem, 16vw, 4.9rem);
  }

  .button {
    width: 100%;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .japanese-word {
    font-size: clamp(3.5rem, 20vw, 5rem);
  }

  .section h2,
  .policy-layout h1 {
    font-size: clamp(2.1rem, 12vw, 3.3rem);
  }
}