@charset "UTF-8";

:root {
  color-scheme: light;
  --ink: #24364a;
  --navy: #082c58;
  --blue: #126397;
  --pale: #f0f6fb;
  --line: #cedde9;
  --content-width: 1100px;
}

*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: #fff;
  color: var(--ink);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  font-size: 1rem;
  line-height: 1.9;
  overflow-wrap: anywhere;
}
main { flex: 1; }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--blue); text-underline-offset: .25em; }
a:hover { color: var(--navy); }
:focus-visible { outline: 3px solid #986200; outline-offset: 5px; }
h1, h2, h3 { color: var(--navy); line-height: 1.5; }
h1, h2, h3, p, figure, dl { margin-top: 0; }
h2 { margin-bottom: 1.5rem; font-size: clamp(1.35rem, 2.5vw, 1.8rem); }
h3 { font-size: 1.25rem; }
p { margin-bottom: 1.5rem; }
p:last-child { margin-bottom: 0; }
.container { width: min(var(--content-width), calc(100% - 48px)); margin-inline: auto; }
.skip-link {
  position: absolute;
  left: 16px;
  top: 0;
  transform: translateY(-150%);
  z-index: 10;
  background: #fff;
  padding: .75rem 1rem;
}
.skip-link:focus { transform: translateY(8px); }
.site-header { background: #fff; border-bottom: 1px solid var(--line); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  padding-block: 1.25rem;
}
.site-logo { display: block; width: 300px; max-width: 100%; flex-shrink: 0; }
.site-logo img { width: 100%; }
.site-nav ul, .footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: .25rem .5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav a {
  display: block;
  padding: .65rem .8rem;
  border-bottom: 3px solid transparent;
  color: var(--navy);
  font-weight: 700;
  text-decoration: none;
}
.site-nav a:hover { background: var(--pale); border-bottom-color: var(--line); }
.site-nav a[aria-current="page"] { border-bottom-color: var(--blue); background: var(--pale); }
.hero, .page-heading {
  background: radial-gradient(ellipse at 80% 20%, #fff 0%, #ffffff00 60%),
    linear-gradient(120deg, #eaf4fb 0%, #d7eafb 65%, #b5d7ee 100%);
  border-bottom: 1px solid var(--line);
}
.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(4rem, 9vw, 8rem);
  background:
    linear-gradient(90deg, #eff8fce6 10%, #eff8fc99 45%, #ffffff00 75%),
    radial-gradient(ellipse 48% 18% at 85% 90%, #fff 0%, #ffffffcc 35%, #ffffff00 100%),
    radial-gradient(ellipse 35% 14% at 60% 76%, #ffffffed 0%, #ffffff00 100%),
    radial-gradient(ellipse 34% 13% at 95% 18%, #ffffffd9 0%, #ffffff00 100%),
    linear-gradient(120deg, #e8f5fc 20%, #b5dcef 65%, #70b0d9 100%);
}
.hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  width: 440px;
  height: 440px;
  left: 82%;
  top: 36%;
  transform: translate(-50%, -50%) rotate(-16deg);
  pointer-events: none;
  background:
    radial-gradient(circle at center, #fff 0%, #ffffffed 1%, #ffffff80 5%, #ffffff00 24%),
    linear-gradient(0deg, #ffffff00 49.5%, #ffffffe6 50%, #ffffff00 50.5%),
    linear-gradient(90deg, #ffffff00 49.7%, #ffffffd9 50%, #ffffff00 50.3%);
  mask-image: radial-gradient(ellipse, #000 5%, #0009 40%, transparent 70%);
  animation: hero-light-breathe 10s ease-in-out infinite;
}
@keyframes hero-light-breathe {
  0%, 100% { opacity: .55; }
  50% { opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .hero::before { animation: none; opacity: 1; }
}
.hero h1 { margin-bottom: 0; font-size: clamp(1.7rem, 4vw, 3rem); line-height: 1.7; letter-spacing: .04em; }
.hero-phrase { display: inline-block; }
.page-heading {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: 3rem;
  background:
    linear-gradient(90deg, #f1f8fced 15%, #eff8fc99 50%, #ffffff00 85%),
    radial-gradient(ellipse 40% 24% at 85% 90%, #ffffffed 0%, #ffffff00 100%),
    radial-gradient(ellipse 32% 18% at 95% 15%, #ffffffcc 0%, #ffffff00 100%),
    linear-gradient(120deg, #edf7fc 15%, #cee6f5 65%, #abd2e9 100%);
}
.page-heading::before {
  content: "";
  position: absolute;
  z-index: -1;
  pointer-events: none;
  left: 85%;
  top: 40%;
  width: 220px;
  height: 220px;
  transform: translate(-50%, -50%) rotate(-16deg);
  opacity: .9;
  background:
    radial-gradient(circle, #fff 0%, #ffffffed 2%, #ffffff80 5%, #ffffff00 24%),
    linear-gradient(0deg, #ffffff00 49.5%, #fff 50%, #ffffff00 50.5%),
    linear-gradient(90deg, #ffffff00 49.7%, #fff 50%, #ffffff00 50.3%);
  mask-image: radial-gradient(ellipse, #000 5%, #0009 40%, transparent 70%);
}
.page-heading h1 { margin: 0; font-size: clamp(1.8rem, 3.5vw, 2.5rem); }
.company-intro, .page-guides, .greeting, .company-profile, .access,
.business-section, .company-philosophy, .work-principles, .recruitment-status {
  padding-block: clamp(2.5rem, 5vw, 4.5rem);
}
.company-intro p { max-width: 52rem; }
.page-guides, .company-profile, .work-principles { background: var(--pale); }
.guide-grid, .philosophy-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; }
.guide-card { padding: 2rem; border: 1px solid var(--line); border-top: 3px solid var(--blue); background: #fff; }
.guide-card h3 { margin-bottom: .75rem; }
.guide-card h3 a { display: inline-block; padding-block: .25rem; }
.greeting-inner { display: grid; grid-template-columns: minmax(0, 1fr) 200px; gap: 3rem; align-items: start; }
.representative { margin: 0; }
.representative img { width: 200px; }
.representative figcaption { margin-top: .75rem; font-size: .9375rem; }
.company-details { margin-bottom: 0; border-top: 1px solid var(--line); }
.company-details > div { display: grid; grid-template-columns: 11rem minmax(0, 1fr); border-bottom: 1px solid var(--line); }
.company-details dt, .company-details dd { margin: 0; padding: 1.25rem; }
.company-details dt { color: var(--navy); font-weight: 700; }
.company-details dd { background: #fff; }
.access-map { margin-block: 1.5rem; }
.access-map iframe { display: block; width: 100%; height: 400px; border: 1px solid var(--line); }
.business-section + .business-section { border-top: 1px solid var(--line); }
.service-phrase { display: inline-block; }
.process-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; padding: 0; margin: 2rem 0 0; list-style-position: inside; }
.process-list li { position: relative; padding: 1.25rem; background: var(--pale); color: var(--navy); font-weight: 700; }
.process-list li:not(:last-child)::after { content: "→"; position: absolute; right: -1.6rem; top: 50%; transform: translateY(-50%); }
.philosophy-grid { margin-block: 2rem; }
.philosophy-card { padding: 2rem; border: 1px solid var(--line); background: linear-gradient(135deg, #fff, var(--pale)); }
.philosophy-card dt { font-size: 1.8rem; font-weight: 700; color: var(--navy); margin-bottom: .75rem; letter-spacing: .12em; }
.philosophy-card dd { margin: 0; }
.recruitment-status { min-height: 16rem; }
.site-footer { background: var(--navy); color: #fff; padding-block: 2.5rem; }
.footer-company { font-size: 1.125rem; font-weight: 700; margin-bottom: .5rem; }
.site-footer address { font-style: normal; }
.footer-nav { margin-block: 1.5rem; }
.footer-nav a { display: inline-block; color: #fff; padding: .5rem .8rem .5rem 0; }
.footer-nav a:hover, .footer-nav a[aria-current="page"] { text-decoration-thickness: 3px; }
.copyright { margin: 0; border-top: 1px solid #54708d; padding-top: 1.25rem; }
.copyright small { font-size: .875rem; }

@media (max-width: 900px) {
  .header-inner { flex-direction: column; align-items: flex-start; }
  .site-nav { width: 100%; }
}
@media (max-width: 600px) {
  .container { width: calc(100% - 32px); }
  .site-logo { width: 270px; }
  .site-nav ul { gap: .25rem; }
  .site-nav a { padding: .6rem .65rem; font-size: .9375rem; }
  .hero { padding-block: 3.5rem; }
  .hero::before { left: 86%; top: 17%; width: 280px; height: 280px; }
  .hero h1 { letter-spacing: 0; }
  .page-heading { padding-block: 2rem; }
  .page-heading::before { left: 88%; top: 22%; width: 150px; height: 150px; }
  .guide-grid, .philosophy-grid, .greeting-inner, .process-list { grid-template-columns: minmax(0, 1fr); }
  .guide-card, .philosophy-card { padding: 1.5rem; }
  .greeting-inner { gap: 1.5rem; }
  .company-details > div { grid-template-columns: minmax(0, 1fr); }
  .company-details dt { padding: 1rem 1rem .5rem; }
  .company-details dd { padding: 1rem; }
  .access-map iframe { height: 300px; }
  .process-list li:not(:last-child)::after { content: "↓"; top: auto; bottom: -1.9rem; right: 50%; transform: translateX(50%); }
}