:root {
  --color-primary: #e60012;
  --color-primary-dark: #b8000e;
  --color-secondary: #666666;
  --color-accent: #e60012;

  --color-text: #222222;
  --color-text-light: #666666;

  --color-bg: #ffffff;
  --color-bg-light: #f5f5f5;
  --color-bg-dark: #1d1d1d;

  --color-border: #dddddd;
  --color-white: #ffffff;

  --container-width: 1200px;
  --container-padding: 24px;
  --section-space: 136px;

  --font-sans:
    "Noto Sans JP",
    "Yu Gothic",
    "YuGothic",
    "Hiragino Kaku Gothic ProN",
    "Hiragino Sans",
    sans-serif;

  --font-en:
    Arial,
    Helvetica,
    sans-serif;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 62.5%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1.6rem;
  line-height: 1.8;
  background: var(--color-bg);
}

body.is-menu-open {
  overflow: hidden;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

button {
  color: inherit;
}

figure,
p,
h1,
h2,
h3,
ul {
  margin-top: 0;
}

.l-container {
  width: min(
    calc(100% - var(--container-padding) * 2),
    var(--container-width)
  );
  margin-inline: auto;
}

.section {
  padding-block: var(--section-space);
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 9999;
  padding: 12px 16px;
  color: var(--color-white);
  background: var(--color-primary);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
}

.site-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.4;
}

.site-logo__ja {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.site-logo__en {
  color: var(--color-secondary);
  font-family: var(--font-en);
  font-size: 1rem;
  letter-spacing: 0.14em;
}

.global-nav__list {
  display: flex;
  align-items: center;
  gap: 30px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.global-nav a {
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.4;
}

.global-nav__en {
  font-family: var(--font-en);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.global-nav__ja {
  color: var(--color-text-light);
  font-size: 1rem;
}

.global-nav__contact a {
  min-width: 148px;
  padding: 12px 18px;
  color: var(--color-white);
  background: var(--color-primary);
}

.global-nav__contact .global-nav__ja {
  color: rgba(255, 255, 255, 0.8);
}

.menu-button {
  display: none;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.menu-button__text {
  font-family: var(--font-en);
  font-size: 1.2rem;
  letter-spacing: 0.1em;
}

.menu-button__icon {
  display: grid;
  gap: 5px;
  width: 28px;
}

.menu-button__icon span {
  display: block;
  height: 1px;
  background: var(--color-text);
}

.mobile-nav {
  position: fixed;
  inset: 73px 0 0;
  overflow-y: auto;
  background: var(--color-white);
}

.mobile-nav__list {
  margin: 0;
  padding: 24px 0 80px;
  list-style: none;
}

.mobile-nav__list a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 22px 0;
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav__list span {
  font-family: var(--font-en);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.mobile-nav__list small {
  color: var(--color-text-light);
}

/* Common UI */

.section-heading__en {
  margin-bottom: 8px;
  color: var(--color-primary);
  font-family: var(--font-en);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.section-heading__ja {
  margin-bottom: 0;
  font-size: clamp(3rem, 4vw, 4.4rem);
  line-height: 1.3;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
  padding-bottom: 6px;
  font-weight: 700;
  border-bottom: 1px solid var(--color-primary);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 220px;
  min-height: 60px;
  padding: 14px 24px;
  font-weight: 700;
  border: 1px solid transparent;
}

.button--light {
  color: var(--color-primary);
  background: var(--color-white);
}
.button--primary {
  color: var(--color-white);
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.button--primary:hover,
.button--primary:focus-visible {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

.text-link--light {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.6);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 4px;
}

.image-placeholder {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 8px;
  width: 100%;
  min-height: 320px;
  padding: 32px;
  color: #667580;
  text-align: center;
  background:
    linear-gradient(
      135deg,
      #edf0f2 0%,
      #edf0f2 49%,
      #e3e7ea 50%,
      #e3e7ea 100%
    );
  background-size: 24px 24px;
  border: 1px solid var(--color-border);
}

.image-placeholder__label {
  font-family: var(--font-en);
  font-size: 1.2rem;
  letter-spacing: 0.16em;
}

.image-placeholder__filename {
  font-size: 1.4rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}

/* Footer */

.site-footer {
  color: var(--color-white);
  background: var(--color-bg-dark);
}

.site-footer__main {
  padding-block: 80px;
}

.site-footer__layout {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 64px;
}

.site-footer__company-name {
  margin-bottom: 8px;
  font-size: 2rem;
  font-weight: 700;
}

.site-footer__tagline {
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.72);
}

.site-footer__address {
  margin-bottom: 16px;
  font-style: normal;
}

.footer-nav__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-nav__list li + li {
  margin-top: 12px;
}

.site-footer__inquiry-title {
  margin-bottom: 24px;
}

.site-footer__bottom {
  padding-block: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.site-footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

.site-footer__bottom p {
  margin-bottom: 0;
}

@media (max-width: 1023px) {
  :root {
    --section-space: 96px;
  }

  .site-header__inner {
    min-height: 72px;
  }

  .global-nav {
    display: none;
  }

  .menu-button {
    display: flex;
  }

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

  .site-footer__company {
    grid-column: 1 / -1;
  }
}

@media (max-width: 767px) {
  :root {
    --container-padding: 20px;
    --section-space: 72px;
  }

  body {
    font-size: 1.5rem;
  }

  .site-logo__ja {
    font-size: 1.5rem;
  }

  .site-logo__en {
    font-size: 0.9rem;
  }

  .site-footer__layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .site-footer__company {
    grid-column: auto;
  }

  .site-footer__bottom-inner {
    flex-direction: column;
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.site-logo__image {
  width: auto;
  max-width: 220px;
  max-height: 58px;
  object-fit: contain;
}

@media (max-width: 767px) {
  .site-logo__image {
    max-width: 170px;
    max-height: 46px;
  }
}

/* Page header */

.page-header {
  padding-block: 88px 48px;
  background: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
}

.page-header__en {
  margin-bottom: 12px;
  color: var(--color-primary);
  font-family: var(--font-en);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.page-header__title {
  margin-bottom: 40px;
  font-size: clamp(4rem, 5vw, 6.4rem);
  line-height: 1.3;
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  color: var(--color-text-light);
  font-size: 1.3rem;
  list-style: none;
}

.breadcrumb__list li + li::before {
  margin-right: 8px;
  content: "/";
}

.breadcrumb__list a {
  color: var(--color-text-light);
}

.breadcrumb__list a:hover,
.breadcrumb__list a:focus-visible {
  color: var(--color-primary);
}