*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #fafafa;
  --color-text: #1a1a1a;
  --color-muted: #666;
  --color-border: #e0e0e0;
  --color-accent: #2a2a2a;
  --color-card-bg: #fff;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Sans", "Noto Sans JP", sans-serif;
  --max-width: 720px;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.8;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

.header {
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--color-border);
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

main {
  flex: 1;
}

.section {
  padding: 48px 0;
  border-bottom: 1px solid var(--color-border);
}

.section:last-child {
  border-bottom: none;
}

h2 {
  font-size: 1.1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  margin-bottom: 20px;
}

p {
  margin-bottom: 12px;
}

p:last-child {
  margin-bottom: 0;
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.service-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 24px;
}

.service-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.service-ja {
  font-size: 0.9rem;
  color: var(--color-muted);
}

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

a:hover {
  opacity: 0.7;
}

.footer {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.footer p {
  font-size: 0.85rem;
  color: var(--color-muted);
}

@media (min-width: 600px) {
  .services-grid {
    grid-template-columns: 1fr 1fr;
  }
}