:root {
  --canvas: #fff4cf;
  --canvas-top: #fff8e0;
  --surface: #ffffff;
  --ink: #11120f;
  --muted: #6c6c66;
  --accent: #ff7263;
  --citric: #f0e055;
  --hairline: rgba(17, 18, 15, 0.08);
  --radius-card: 28px;
  --radius-pill: 999px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo",
    "Pretendard", "Noto Sans KR", "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, var(--canvas-top) 0%, var(--canvas) 100%);
  background-attachment: fixed;
  font-size: 17px;
  line-height: 1.6;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
}

.wrapper {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

.topnav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 40px;
}

.topnav .wordmark {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--ink);
}

.topnav nav {
  display: flex;
  gap: 18px;
}

.topnav nav a {
  font-size: 15px;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.topnav nav a:hover {
  color: var(--ink);
}

h1 {
  font-size: 38px;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 12px;
  line-height: 1.15;
}

h2 {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 40px 0 12px;
  line-height: 1.25;
}

h3 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 24px 0 6px;
}

p {
  margin: 0 0 14px;
  color: var(--ink);
}

p.lead {
  font-size: 19px;
  color: var(--muted);
  margin-bottom: 32px;
  line-height: 1.55;
}

ul {
  padding-left: 22px;
  margin: 0 0 18px;
}

ul li {
  margin-bottom: 8px;
}

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-color: var(--ink);
}

.card {
  background: var(--surface);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: 0 10px 30px rgba(17, 18, 15, 0.06);
  margin-bottom: 24px;
}

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

.cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.01em;
  margin-top: 8px;
}

.cta:hover {
  background: #000;
}

footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
  color: var(--muted);
  font-size: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

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

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

.hero {
  text-align: center;
  padding: 32px 0 16px;
}

.hero h1 {
  font-size: 48px;
  margin-bottom: 16px;
}

.hero p.lead {
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.brand-glyph {
  width: 96px;
  height: 96px;
  border-radius: 24px;
  margin: 0 auto 28px;
  background: var(--citric);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 56px;
  box-shadow: 0 12px 32px rgba(17, 18, 15, 0.12);
}

.meta {
  font-size: 13px;
  color: var(--muted);
  margin-top: 24px;
}

@media (max-width: 540px) {
  .wrapper {
    padding: 24px 18px 64px;
  }
  h1 {
    font-size: 30px;
  }
  .hero h1 {
    font-size: 36px;
  }
  p.lead {
    font-size: 17px;
  }
  .topnav {
    padding-bottom: 20px;
    margin-bottom: 28px;
  }
}