:root {
  --color-navy: #183247;
  --color-blue: #245f82;
  --color-light-blue: #eef5f8;
  --color-white: #ffffff;
  --color-gray: #d9e1e6;
  --color-gray-dark: #5d6a73;
  --color-text: #25333c;
  --max-width: 980px;
  --radius: 6px;
  --shadow: none;
  --focus: 3px solid #4a9bc2;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--color-text);
  background: var(--color-white);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.75;
}
img { display: block; max-width: 100%; }
a { color: var(--color-blue); text-underline-offset: .2em; }
a:hover { color: var(--color-navy); }
a:focus-visible, button:focus-visible { outline: var(--focus); outline-offset: 3px; }
h1, h2, h3 { margin: 0 0 .7em; color: var(--color-navy); line-height: 1.35; font-weight: 650; }
h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.4rem, 3vw, 1.85rem); }
h3 { font-size: 1.08rem; }
p { margin: 0 0 1.1rem; }
small { color: var(--color-gray-dark); }
.container { width: min(calc(100% - 40px), var(--max-width)); margin-inline: auto; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; padding: .6rem .9rem; background: white; border: 1px solid var(--color-gray); }
.skip-link:focus { top: 1rem; }

.site-header { position: relative; z-index: 50; background: white; border-bottom: 1px solid var(--color-gray); }
.header-inner { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: inline-flex; flex: 0 0 auto; text-decoration: none; }
.header-logo { width: 50px; height: 50px; object-fit: contain; }
.site-nav ul { display: flex; align-items: center; gap: .15rem; margin: 0; padding: 0; list-style: none; }
.site-nav a { display: block; padding: .5rem .55rem; color: var(--color-text); font-size: .85rem; text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--color-blue); text-decoration: underline; }
.nav-toggle { display: none; width: 42px; height: 42px; padding: 9px; color: var(--color-navy); background: white; border: 1px solid var(--color-gray); border-radius: 3px; cursor: pointer; }
.nav-toggle span { display: block; height: 2px; margin: 5px 0; background: currentColor; }

.hero { background: #f7f9fa; border-bottom: 1px solid var(--color-gray); }
.hero-inner { display: grid; grid-template-columns: 1fr 180px; align-items: center; gap: 3rem; padding-block: clamp(56px, 8vw, 88px); }
.hero h1 { max-width: 680px; }
.hero-lead { max-width: 720px; color: var(--color-gray-dark); font-size: 1rem; }
.hero-ja { max-width: 720px; }
.hero-logo-wrap { display: grid; place-items: center; }
.hero-logo { width: 180px; height: 180px; object-fit: contain; }
.eyebrow, .card-tag, .domain-mark, .meaning-letter { display: none; }
.actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.5rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: .55rem 1rem; color: white; background: var(--color-blue); border: 1px solid var(--color-blue); border-radius: 3px; font-weight: 600; text-decoration: none; }
.button:hover { color: white; background: var(--color-navy); }
.button-secondary, .button-light { color: var(--color-blue); background: white; border-color: var(--color-blue); }
.button-secondary:hover, .button-light:hover { color: white; background: var(--color-blue); }

.section { padding-block: clamp(48px, 7vw, 72px); }
.section + .section { border-top: 1px solid var(--color-gray); }
.section-tint, .section-dark { color: var(--color-text); background: #f7f9fa; }
.section-dark h2, .section-dark h3 { color: var(--color-navy); }
.section-heading { max-width: 720px; margin-bottom: 2rem; }
.section-heading p, .section-dark .section-heading p { color: var(--color-gray-dark); font-size: 1rem; }
.grid { display: grid; column-gap: 2rem; row-gap: 0; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card { padding: 1.4rem 0; background: transparent; border: 0; border-top: 1px solid var(--color-gray); border-radius: 0; box-shadow: none; }
.card p:last-child { margin-bottom: 0; }
.domain-card { min-height: 0; }
.link-card { transition: none; }
.link-card:hover { transform: none; box-shadow: none; }
.link-card a { font-weight: 600; }
.note { padding: 1rem 1.2rem; background: var(--color-light-blue); border-left: 3px solid var(--color-blue); }
.note p:last-child { margin-bottom: 0; }
.feature-list { display: grid; gap: .4rem; padding-left: 1.25rem; }
.feature-list li { padding-left: .1rem; }
.feature-list li::before { display: none; }

.page-hero { background: #f7f9fa; border-bottom: 1px solid var(--color-gray); }
.page-hero .container { padding-block: clamp(48px, 7vw, 72px); }
.page-hero h1 { max-width: 760px; color: var(--color-navy); font-size: clamp(2rem, 5vw, 2.8rem); }
.page-hero p { max-width: 720px; color: var(--color-gray-dark); font-size: 1rem; }
.profile { display: grid; grid-template-columns: 220px 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.profile-image { width: 100%; border: 1px solid var(--color-gray); border-radius: var(--radius); box-shadow: none; }
.profile-meta { color: var(--color-gray-dark); font-weight: 600; }
.portfolio-card { border-top: 1px solid var(--color-gray); }
.cta { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding: 1.5rem 0; color: var(--color-text); background: transparent; border-top: 1px solid var(--color-gray); border-radius: 0; }
.cta h2 { color: var(--color-navy); }
.cta p { margin-bottom: 0; color: var(--color-gray-dark); }
.contact-panel { max-width: 760px; padding: 0; background: transparent; border: 0; border-radius: 0; box-shadow: none; }
.contact-email { display: inline-block; margin-block: .3rem 1.4rem; font-size: clamp(1.05rem, 3vw, 1.35rem); font-weight: 650; overflow-wrap: anywhere; }
.logo-showcase { overflow: hidden; }
.meaning-logo-frame { max-width: 760px; margin: 2rem auto 0; padding: 0; text-align: center; background: white; border: 0; border-radius: 0; box-shadow: none; }
.meaning-logo { width: 100%; height: auto; margin-inline: auto; object-fit: contain; }
.meaning-logo-frame figcaption { margin-top: .8rem; color: var(--color-gray-dark); font-size: .85rem; }
.name-statement { max-width: 760px; text-align: left; }
.name-statement .actions { justify-content: flex-start; }

.site-footer { padding-block: 36px 22px; color: var(--color-gray-dark); background: white; border-top: 1px solid var(--color-gray); }
.footer-main { display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: start; }
.footer-brand { display: flex; align-items: center; gap: .8rem; }
.footer-logo { width: 44px; height: 44px; object-fit: contain; }
.footer-name { margin: 0; color: var(--color-navy); font-weight: 650; }
.footer-tagline { margin: 0; font-size: .82rem; }
.footer-links { display: flex; gap: 1.2rem; }
.copyright { margin-top: 1.5rem; padding-top: .8rem; border-top: 1px solid var(--color-gray); font-size: .8rem; }

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .site-nav { position: absolute; top: 70px; left: 0; right: 0; display: none; padding: .7rem 20px 1rem; background: white; border-bottom: 1px solid var(--color-gray); }
  .site-nav.is-open { display: block; }
  .site-nav ul { display: grid; grid-template-columns: repeat(2, 1fr); }
  .site-nav a { padding: .65rem; }
}

@media (max-width: 620px) {
  .container { width: min(calc(100% - 28px), var(--max-width)); }
  .hero-inner { grid-template-columns: 1fr; gap: 2rem; }
  .hero-logo-wrap { grid-row: 1; justify-content: start; }
  .hero-logo { width: 110px; height: 110px; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .profile { grid-template-columns: 1fr; }
  .profile-image { width: min(180px, 60vw); }
  .cta { align-items: flex-start; flex-direction: column; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-links { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}