:root {
  --primary: #0b3d66;
  --primary-light: #12649f;
  --accent: #f4a51c;
  --bg: #f6f8fb;
  --text: #1f2a37;
  --muted: #64748b;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
  --radius: 20px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  line-height: 1.7;
  background: var(--bg);
}

img {
  display: block;
  width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 14px clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 6px 20px rgba(15, 23, 42, 0.08);
  backdrop-filter: blur(12px);
}

.company-logo {
  color: var(--primary);
  font-size: clamp(1.1rem, 2vw, 1.45rem);
  font-weight: 800;
  letter-spacing: 0.04em;
}

.global-nav {
  display: flex;
  align-items: center;
  gap: 10px;
}

.global-nav a {
  border-radius: 999px;
  padding: 9px 16px;
  font-weight: 700;
  transition: background 0.2s ease, color 0.2s ease;
}

.global-nav a:hover,
.global-nav a:focus-visible {
  color: var(--white);
  background: var(--primary);
}

.menu-toggle {
  display: none;
  border: 0;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--primary);
  cursor: pointer;
}

.menu-toggle__bar {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: var(--white);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-toggle.is-open .menu-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-open .menu-toggle__bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open .menu-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.sr-only {
  position: absolute;
  overflow: hidden;
  width: 1px;
  height: 1px;
  clip: rect(0, 0, 0, 0);
}

.hero {
  display: grid;
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
  min-height: calc(100vh - 72px);
  padding: clamp(48px, 8vw, 112px) clamp(20px, 5vw, 72px);
  background: linear-gradient(135deg, #e8f3fb 0%, #ffffff 58%, #f7ead0 100%);
}

.hero__eyebrow,
.section__label {
  margin: 0 0 8px;
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0 0 20px;
  color: var(--primary);
  font-size: clamp(2rem, 5vw, 4.4rem);
  line-height: 1.18;
}

.hero p:not(.hero__eyebrow) {
  max-width: 620px;
  font-size: clamp(1rem, 2vw, 1.25rem);
}

.products-layout,
.recruit-card,
.overview-card {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.section {
  padding: clamp(64px, 9vw, 112px) clamp(20px, 5vw, 72px);
}

.section__heading {
  max-width: 1080px;
  margin: 0 auto 32px;
}

.section__heading h2 {
  margin: 0;
  color: var(--primary);
  font-size: clamp(1.8rem, 4vw, 3rem);
}

.overview-grid,
.products-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  max-width: 1080px;
  margin: 0 auto;
}

.overview-card,
.recruit-card {
  background: var(--white);
  padding: clamp(24px, 4vw, 40px);
}

.company-table {
  margin: 0;
}

.company-table div {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid #e2e8f0;
}

.company-table div:first-child {
  padding-top: 0;
}

.company-table div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.company-table dt {
  color: var(--primary);
  font-weight: 800;
}

.company-table dd {
  margin: 0;
}

.iso-certification {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
}

.iso-certification img {
  width: min(120px, 40vw);
  max-height: 80px;
  object-fit: contain;
}

.products-layout {
  overflow: hidden;
  background: var(--white);
}

.products-text {
  padding: clamp(24px, 4vw, 42px);
}

.products-text h3,
.recruit-card h3 {
  margin: 0 0 16px;
  color: var(--primary);
  font-size: clamp(1.4rem, 3vw, 2rem);
}

.products-text ul {
  padding-left: 1.2em;
  font-weight: 700;
}

.section--recruit {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
}

.section--recruit .section__heading h2,
.section--recruit .recruit-card h3 {
  color: var(--white);
}

.recruit-card {
  max-width: 1080px;
  margin: 0 auto;
  color: var(--white);
  background: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(10px);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 16px;
  border-radius: 999px;
  padding: 12px 22px;
  color: var(--primary);
  background: var(--accent);
  font-weight: 800;
}

.site-footer {
  padding: 28px 20px;
  color: var(--white);
  text-align: center;
  background: #08263f;
}

@media (max-width: 900px) {
  .hero,
  .overview-grid,
  .products-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }
}

@media (max-width: 700px) {
  .menu-toggle {
    display: block;
  }

  .global-nav {
    position: absolute;
    top: calc(100% + 8px);
    right: 20px;
    left: 20px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    border-radius: 16px;
    background: var(--white);
    box-shadow: var(--shadow);
  }

  .global-nav.is-open {
    display: flex;
  }

  .global-nav a {
    padding: 12px 14px;
  }

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

  .section {
    padding-block: 56px;
  }
}