/*
 * Ienaga Giken brand system 2.0
 * Shared type, color, navigation, CTA and footer rules.
 */
:root {
  --font-display: "Noto Serif JP", "Yu Mincho", YuMincho, "Hiragino Mincho ProN", serif;
  --font-body: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  --color-white: #ffffff;
  --color-bg-soft: #f7fbfe;
  --color-bg-blue: #edf7fc;
  --color-navy: #063b76;
  --color-navy-deep: #052b58;
  --color-heading: #0a427f;
  --color-text: #435e72;
  --color-blue: #087fc7;
  --color-blue-strong: #066dac;
  --color-blue-bright: #149bd7;
  --color-blue-light: #d9eff9;
  --color-border: #d7e7ef;
  --container-width: 1360px;
  --container-padding: clamp(24px, 5vw, 80px);
  --section-space: clamp(96px, 10vw, 150px);
  --radius-small: 8px;
  --radius-medium: 12px;
  --font-serif: var(--font-display);
  --font-sans: var(--font-body);
  --navy: var(--color-navy);
  --blue: var(--color-blue);
  --ink: var(--color-heading);
  --muted: var(--color-text);
  --line: var(--color-border);
  --off-white: var(--color-bg-soft);
}

html {
  scroll-padding-top: 82px;
}

body {
  color: var(--color-text);
  background: var(--color-white);
  font-family: var(--font-body);
  line-height: 1.9;
}

.brand-container,
.brand-shell-container {
  width: min(calc(100% - 48px), var(--container-width));
  margin-inline: auto;
}

:where(a, button, input, textarea, select):focus-visible {
  outline: 3px solid rgba(8, 127, 199, .35);
  outline-offset: 4px;
}

.brand-section-label,
.section-kicker {
  display: block;
  margin: 0 0 18px;
  color: var(--color-blue);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: .28em;
  text-transform: uppercase;
}

.brand-section-label::before,
.section-kicker::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 1px;
  margin: 0 11px 4px 0;
  background: currentColor;
}

.button {
  min-width: 0;
  min-height: 48px;
  padding: 11px 22px;
  border: 1px solid transparent;
  border-radius: 10px;
  box-shadow: none;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .06em;
  transition: color .2s ease, background-color .2s ease, border-color .2s ease, transform .2s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #fff;
  background: var(--color-blue);
  box-shadow: none;
}

.button-primary:hover,
.button-primary:focus-visible {
  color: #fff;
  background: var(--color-blue-strong);
}

.button-dark {
  color: #fff;
  background: var(--color-navy);
}

.brand-text-link,
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  color: var(--color-heading);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .06em;
}

.brand-text-link span,
.text-link span {
  color: var(--color-blue);
  transition: transform .2s ease;
}

.brand-text-link:hover span,
.brand-text-link:focus-visible span,
.text-link:hover span,
.text-link:focus-visible span {
  transform: translateX(4px);
}

/* Header */
.site-header,
.site-header.is-scrolled,
body:not(.home) .site-header,
.home .site-header {
  height: 76px;
  color: var(--color-heading);
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid rgba(29, 100, 166, .13);
  box-shadow: none;
  backdrop-filter: blur(12px);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, .985);
  border-bottom-color: var(--color-border);
}

.header-inner {
  height: 100%;
  gap: clamp(20px, 3vw, 44px);
}

.site-branding {
  min-width: 190px;
}

.brand-logo,
.home .brand-logo,
body:not(.home) .brand-logo,
.site-header.is-scrolled .brand-logo {
  width: 220px;
  max-height: 45px;
  object-fit: contain;
  object-position: left center;
  filter: brightness(0) saturate(100%) invert(19%) sepia(39%) saturate(1810%) hue-rotate(177deg) brightness(84%) contrast(99%);
}

.primary-menu {
  gap: clamp(18px, 2.2vw, 32px);
}

.primary-menu a,
.home .primary-menu a,
body:not(.home) .primary-menu a,
.site-header.is-scrolled .primary-menu a {
  min-height: 44px;
  padding: 11px 0;
  color: var(--color-navy-deep);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .055em;
}

.primary-menu a::after {
  bottom: 5px;
  height: 1px;
  background: var(--color-blue);
}

.primary-menu .menu-contact a,
.home .primary-menu .menu-contact a,
body:not(.home) .primary-menu .menu-contact a,
.site-header.is-scrolled .menu-contact a {
  min-height: 42px;
  padding: 9px 17px;
  color: var(--color-blue-strong);
  border: 1px solid rgba(8, 127, 199, .48);
  border-radius: 10px;
  background: #fff;
}

.primary-menu .menu-contact a:hover,
.primary-menu .menu-contact a:focus-visible {
  color: #fff;
  border-color: var(--color-blue);
  background: var(--color-blue);
}

.primary-menu .menu-contact a::after {
  display: none;
}

.mobile-policy-link {
  display: none;
}

.menu-toggle,
.home .menu-toggle {
  color: var(--color-navy-deep);
}

/* Contact */
.contact-band {
  position: relative;
  overflow: hidden;
  padding: clamp(72px, 7vw, 104px) 0;
  color: var(--color-text);
  background: var(--color-bg-blue);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.contact-band::before {
  content: "";
  position: absolute;
  inset: 0;
  width: auto;
  height: auto;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  opacity: .22;
  background-image:
    linear-gradient(18deg, transparent 49.75%, rgba(8, 127, 199, .16) 50%, transparent 50.25%),
    radial-gradient(circle, rgba(8, 127, 199, .3) 1px, transparent 1.5px);
  background-size: 240px 120px, 34px 34px;
  mask-image: linear-gradient(90deg, transparent 0%, #000 62%, #000 100%);
  pointer-events: none;
}

.contact-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, .8fr);
  align-items: center;
  gap: clamp(40px, 7vw, 100px);
}

.contact-band h2 {
  margin: 0;
  color: var(--color-heading);
  font-family: var(--font-display);
  font-size: clamp(36px, 4.2vw, 56px);
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: .045em;
}

.contact-band p {
  margin: 18px 0 0;
  color: var(--color-text);
  font-size: 16px;
}

.contact-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
}

.contact-actions .button {
  min-width: 200px;
}

.contact-phone {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  min-height: 44px;
  color: var(--color-navy);
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 600;
  letter-spacing: .04em;
}

.contact-phone small {
  color: var(--color-blue);
  font-size: 10px;
  letter-spacing: .18em;
}

/* Footer */
.site-footer {
  padding: 52px 0 24px;
  color: rgba(255, 255, 255, .76);
  background: var(--color-navy-deep);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(420px, .9fr);
  align-items: start;
  gap: clamp(48px, 8vw, 120px);
  padding-bottom: 38px;
}

.footer-logo {
  width: 190px;
  max-height: 42px;
  margin-bottom: 16px;
  object-fit: contain;
  object-position: left center;
  filter: brightness(0) invert(1);
}

.footer-company {
  margin: 0 0 6px;
  color: #fff;
  font-weight: 600;
}

.footer-address,
.footer-contact {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
}

.footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 3px 28px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links li + li {
  margin-top: 0;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  color: rgba(255, 255, 255, .78);
  font-size: 13px;
  transition: color .2s ease;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: #fff;
}

.footer-bottom {
  display: block;
  padding-top: 20px;
  color: rgba(255, 255, 255, .5);
  border-top: 1px solid rgba(255, 255, 255, .14);
  font-size: 10px;
  letter-spacing: .08em;
}

@media (max-width: 1024px) {
  .site-header,
  .site-header.is-scrolled,
  body:not(.home) .site-header,
  .home .site-header {
    height: 72px;
  }

  .brand-logo,
  .home .brand-logo,
  body:not(.home) .brand-logo,
  .site-header.is-scrolled .brand-logo {
    width: 205px;
  }

  .primary-navigation,
  .home .primary-navigation,
  body:not(.home) .primary-navigation {
    background: rgba(255, 255, 255, .99);
  }

  .primary-menu {
    gap: 7px;
  }

  .primary-menu a,
  .home .primary-menu a,
  body:not(.home) .primary-menu a,
  .site-header.is-scrolled .primary-menu a {
    padding: 10px 24px;
    color: var(--color-navy-deep);
    font-size: 17px;
  }

  .primary-menu .menu-contact a,
  .home .primary-menu .menu-contact a,
  body:not(.home) .primary-menu .menu-contact a {
    margin-top: 6px;
    padding-inline: 22px;
  }

  .mobile-policy-link {
    display: list-item;
  }

  .mobile-policy-link a {
    color: var(--color-text) !important;
    font-size: 13px !important;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767px) {
  :root {
    --container-padding: 16px;
    --section-space: clamp(76px, 20vw, 96px);
  }

  html {
    scroll-padding-top: 74px;
  }

  .brand-container,
  .brand-shell-container {
    width: min(calc(100% - 32px), var(--container-width));
  }

  .site-header,
  .site-header.is-scrolled,
  body:not(.home) .site-header,
  .home .site-header {
    height: 68px;
  }

  .brand-logo,
  .home .brand-logo,
  body:not(.home) .brand-logo,
  .site-header.is-scrolled .brand-logo {
    width: 190px;
  }

  .contact-inner,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .contact-inner {
    gap: 34px;
  }

  .contact-band h2 {
    font-size: clamp(31px, 9vw, 38px);
  }

  .contact-band p {
    font-size: 15px;
  }

  .contact-actions,
  .contact-actions .button {
    width: 100%;
  }

  .contact-phone {
    font-size: 22px;
  }

  .site-footer {
    padding-top: 42px;
  }

  .footer-grid {
    gap: 28px;
    padding-bottom: 28px;
  }

  .footer-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}