/* Fraxer corporate site
   トンマナ参考: visional.inc（白基調・モノトーン・広い余白） */

:root {
  --color-bg: #ffffff;
  --color-text: #111111;
  --color-muted: #6b6b6b;
  --color-line: #e3e3e3;
  --color-bg-sub: #f6f6f6;

  --font-en: "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-ja: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;

  --container: 1120px;
  --gutter: 24px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-ja);
  font-size: 15px;
  line-height: 1.9;
  letter-spacing: 0.04em;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

h1, h2, h3, p, dl, dd, ol { margin: 0; }

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

.logo {
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: none;
}

/* ---------- Hero ---------- */
.hero {
  padding: 160px 0 144px;
  border-bottom: 1px solid var(--color-line);
}

.hero-label {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--color-muted);
  margin-bottom: 28px;
}

.hero-title {
  font-size: clamp(30px, 5.2vw, 56px);
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: 0.02em;
  margin-bottom: 40px;
}


.hero-name {
  font-family: var(--font-en);
  font-size: clamp(44px, 8vw, 96px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

/* ---------- Section ---------- */
.section {
  padding: 120px 0;
  border-bottom: 1px solid var(--color-line);
}

.section-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
}

.section-title {
  font-family: var(--font-en);
  font-size: 36px;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.section-sub {
  margin-top: 12px;
  font-size: 13px;
  color: var(--color-muted);
}

.section-body > p + * { margin-top: 32px; }

/* ---------- Company ---------- */
.company-table {
  border-top: 1px solid var(--color-text);
}

.company-table > div {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--color-line);
}

.company-table dt {
  font-weight: 500;
  color: var(--color-muted);
}

.company-table .en {
  font-family: var(--font-en);
  color: var(--color-muted);
}

/* ---------- Contact ---------- */
.button {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  padding: 18px 32px;
  background: var(--color-text);
  color: #fff;
  font-weight: 500;
  text-decoration: none;
  transition: opacity 0.2s;
}

.button:hover { opacity: 0.75; }

.button-arrow {
  font-family: var(--font-en);
  transition: transform 0.2s;
}

.button:hover .button-arrow { transform: translateX(4px); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-text);
  color: #fff;
  padding: 72px 0 40px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px 24px;
}

.footer-nav {
  display: flex;
  gap: 32px;
  font-size: 13px;
}

.footer-nav a {
  text-decoration: none;
  opacity: 0.8;
}

.footer-nav a:hover { opacity: 1; }

.copyright {
  grid-column: 1 / -1;
  font-family: var(--font-en);
  font-size: 12px;
  opacity: 0.6;
}

/* ---------- Responsive ---------- */
@media (max-width: 767px) {
  :root {
    --gutter: 16px;
  }

  body { font-size: 14px; }

  .hero { padding: 96px 0 88px; }
  .hero-title { margin-bottom: 28px; }

  .section { padding: 80px 0; }

  .section-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .section-title { font-size: 28px; }

  .company-table > div {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 20px 0;
  }

  .button {
    display: flex;
    justify-content: space-between;
  }

  .footer-inner { grid-template-columns: 1fr; }
  .footer-nav { flex-wrap: wrap; gap: 12px 24px; }

}