:root {
  --color-bg: #f7f8fa;
  --color-surface: #ffffff;
  --color-text: #1f2933;
  --color-muted: #616e7c;
  --color-accent: #2f6fde;
  --color-accent-soft: #e6efff;
  --color-border: #e4e7eb;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #12161c;
    --color-surface: #1c222b;
    --color-text: #e4e7eb;
    --color-muted: #9aa5b1;
    --color-accent: #7aa7ff;
    --color-accent-soft: #1e2b45;
    --color-border: #2c3440;
  }
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
  line-height: 1.7;
}

.home {
  max-width: 40rem;
  margin: 0 auto;
  padding: 3rem 1rem 2rem;
}

.hero {
  text-align: center;
  margin-bottom: 2.5rem;
}

.hero__badge {
  display: inline-block;
  margin: 0 0 1rem;
  padding: 0.15rem 0.75rem;
  border-radius: 999px;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 600;
}

.hero__title {
  margin: 0 0 0.75rem;
  font-size: 2rem;
  line-height: 1.2;
}

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

.features__title {
  margin: 0 0 1rem;
  font-size: 1rem;
  color: var(--color-muted);
}

.features__list {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: 0.75rem;
  background: var(--color-surface);
}

.feature__icon {
  font-size: 1.5rem;
  line-height: 1.2;
}

.feature__name {
  margin: 0 0 0.25rem;
  font-size: 1rem;
}

.feature__text {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.home__footer {
  margin-top: 3rem;
  text-align: center;
  color: var(--color-muted);
  font-size: 0.8rem;
}