:root {
  color-scheme: light;
  --bg: #fffaf0;
  --ink: #101d17;
  --muted: #5f6c64;
  --card: #ffffff;
  --line: #eadfca;
  --accent: #e53935;
  --accent-dark: #b92724;
  --soft: #f4ecd9;
  --lime: #d9ff4a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(217, 255, 74, 0.28), transparent 34rem),
    linear-gradient(180deg, #fffdf7 0%, var(--bg) 60%, #f8f0de 100%);
  color: var(--ink);
  font-family: "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  line-height: 1.7;
}

a {
  color: var(--accent-dark);
  font-weight: 700;
}

.page {
  min-height: 100vh;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 960px;
  margin: 0 auto;
  padding: 1.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  text-decoration: none;
}

.mark {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border-radius: 0.85rem;
  background: var(--accent);
  color: #fff;
  font-size: 1.55rem;
  font-weight: 900;
}

.brand-text {
  font-size: 1.15rem;
  font-weight: 900;
}

.nav {
  display: flex;
  gap: 0.9rem;
}

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

.hero,
.content {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1.25rem;
}

.hero-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 2rem;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 1.5rem 4rem rgba(73, 57, 24, 0.11);
}

.hero-inner {
  padding: clamp(2rem, 6vw, 4.5rem);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent-dark);
  font-size: 0.86rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  max-width: 13ch;
  margin: 0;
  font-size: clamp(2.6rem, 10vw, 5.8rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.lead {
  max-width: 42rem;
  margin: 1.4rem 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.draft-banner {
  margin-top: 1.5rem;
  padding: 1rem 1.1rem;
  border: 1px solid #f1c8bf;
  border-radius: 1.1rem;
  background: #fff2ee;
  color: #7c2c22;
  font-weight: 700;
}

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

.card,
.section {
  border: 1px solid var(--line);
  border-radius: 1.4rem;
  background: rgba(255, 255, 255, 0.84);
  padding: 1.35rem;
}

.section {
  margin-bottom: 1rem;
}

h2 {
  margin: 0 0 0.7rem;
  font-size: 1.25rem;
}

h3 {
  margin: 1.2rem 0 0.4rem;
  font-size: 1rem;
}

p,
ul {
  margin: 0.5rem 0 0;
}

ul {
  padding-left: 1.2rem;
}

li + li {
  margin-top: 0.35rem;
}

.meta {
  color: var(--muted);
  font-size: 0.94rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.35rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.65rem 1rem;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
}

.button.secondary {
  background: var(--soft);
  color: var(--ink);
}

.footer {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 720px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
  }

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