/* ItsuCara.jp / approved C direction. Logo geometry lives in the canonical SVG. */
:root {
  color-scheme: light;
  --paper: #f4f1ea;
  --ink: #20211e;
  --muted: #68685f;
  --line: #cecac0;
  --sans: "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Yu Gothic", Arial, sans-serif;
  --serif: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", serif;
  --gutter: clamp(1.5rem, 4.3vw, 4.5rem);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 2rem; -webkit-text-size-adjust: 100%; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); font-size: 1rem; line-height: 1.9; -webkit-font-smoothing: antialiased; }
::selection { color: var(--paper); background: var(--ink); }
a { color: inherit; text-underline-offset: .3em; text-decoration-thickness: 1px; }
a:hover { text-decoration-color: var(--muted); }
:focus-visible { outline: 2px solid currentColor; outline-offset: 6px; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-weight: 400; }
svg { display: block; }
.wrap { width: 100%; max-width: 1536px; padding-inline: var(--gutter); margin-inline: auto; }
.micro { font-size: .8125rem; font-weight: 500; letter-spacing: .14em; line-height: 1.7; }
.skip-link { position: absolute; top: 1rem; left: 1rem; z-index: 10; padding: .75rem 1.25rem; background: var(--ink); color: var(--paper); transform: translateY(-200%); }
.skip-link:focus { transform: none; }
.site-header { display: flex; align-items: center; gap: 2rem; min-height: 104px; }
.brand { flex-shrink: 0; width: 250px; margin-left: -18px; }
.site-nav { display: flex; align-items: center; gap: clamp(1.5rem, 3vw, 3rem); margin-left: auto; }
.site-nav a { display: inline-flex; align-items: center; min-height: 44px; text-decoration: none; font-size: .875rem; white-space: nowrap; }
.site-nav a:hover { text-decoration: underline; }
.header-contact { display: inline-flex; align-items: center; min-height: 44px; font-size: .875rem; text-decoration: underline; white-space: nowrap; }
.mobile-menu { display: none; }
/* The complete approved 01 SVG includes the C spacing and its tagline. */
.brand-hero { display: grid; justify-items: center; padding-block: clamp(2rem, 4vw, 4rem) 2rem; }
.brand-hero h1 { width: min(100%, 600px); margin: 0; line-height: 1; }
.company-hero-logo { width: 100%; height: auto; }
.process h2 { margin-top: 2.5rem; }
.process-steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2rem; list-style: none; padding: 0; margin: 2.5rem 0 0; }
.process-steps li { min-width: 0; }
.process-number { color: var(--muted); font-size: .875rem; }
.process-steps h3 { font-size: 1.125rem; margin: .5rem 0; }
.process-steps p { color: var(--muted); font-size: 1rem; }
@media (max-width: 1020px) { .process-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 760px) {
  .process-steps { grid-template-columns: 1fr; gap: 1.5rem; }
  .process-steps li { display: grid; grid-template-columns: 2rem minmax(0, 1fr); gap: 1rem; align-items: baseline; }
  .process-steps h3 { margin-top: 0; }
}
.brand-hero-next { display: inline-flex; align-items: center; min-height: 48px; padding-block: .5rem; font-size: .875rem; text-decoration: underline; }
.hero { padding-top: 1.5rem; padding-bottom: 2rem; }
.hero-eyebrow { display: flex; justify-content: space-between; gap: 2rem; color: var(--muted); }
.hero-layout { display: grid; grid-template-columns: 1.15fr 1fr; align-items: center; gap: clamp(3rem, 7vw, 7.5rem); padding-block: clamp(4rem, 6.5vw, 7rem) clamp(3rem, 5.8vw, 6rem); }
.hero-copy { min-width: 0; }
.hero h1 { font-family: var(--serif); font-size: clamp(4.5rem, 7.2vw, 7rem); line-height: 1.5; letter-spacing: -.06em; margin-bottom: 2.25rem; }
.hero rt { font-family: var(--sans); font-size: .9375rem; font-weight: 400; letter-spacing: .4em; }
.hero-tagline { font-family: var(--serif); font-size: clamp(1.5rem, 2.3vw, 2.125rem); line-height: 1.9; letter-spacing: .035em; margin-bottom: 2.75rem; }
.hero-description { color: var(--muted); font-size: clamp(1rem, 1.4vw, 1.1875rem); line-height: 2.25; }
.hero-description strong { font-weight: 500; }
.hero-art { min-width: 0; padding-top: 2rem; }
.hero-logo { width: 100%; height: auto; }
.hero-art .hero-logo { margin-block: 3rem; }
.art-caption { display: flex; justify-content: space-between; flex-wrap: wrap; gap: .5rem 1rem; margin-top: 3.75rem; padding-top: 1.25rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .75rem; letter-spacing: .07em; }
.hero-bottom { display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.text-link { display: inline-flex; align-items: center; min-height: 56px; padding-block: .625rem; text-decoration: underline; font-size: 1rem; }
.scroll-note { color: var(--muted); }
.scroll-note span { padding-left: .75rem; }
.section { padding-block: clamp(4.5rem, 9vw, 9rem); }
.section-label { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; padding-top: 1.25rem; border-top: 1px solid; color: var(--muted); }
.section-label span:last-child { letter-spacing: .04em; font-weight: 400; }
.section-intro { display: grid; grid-template-columns: 1.15fr 1fr; gap: clamp(3rem, 7vw, 7.5rem); padding-top: 4rem; }
.section h2 { font-family: var(--serif); font-size: clamp(2rem, 3.5vw, 3.375rem); line-height: 1.65; letter-spacing: .02em; }
.prose { color: var(--muted); line-height: 2.15; max-width: 34em; }
.prose p + p { margin-top: 1.5rem; }
.foundation { margin-top: 3rem; background: var(--ink); color: var(--paper); }
.foundation .section-label { color: #b8b9ad; border-color: #585951; }
.foundation .prose { color: #c1c1b6; }
/* Keep the word on the surrounding text baseline; the mark is not a flex baseline. */
.itsu-inline-brand { display: inline; color: inherit; white-space: nowrap; }
.foundation .itsu-inline-brand { color: var(--paper); }
.itsu-link-label { min-width: 0; }
.itsu-inline-brand svg { width: 1.5em; height: auto; aspect-ratio: 360 / 65; display: inline-block; vertical-align: .14em; margin-right: .35em; }
.itsu-inline-brand > span { font-family: var(--sans); font-size: .875em; font-weight: 400; letter-spacing: .05em; line-height: 1; }
.principles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2.5rem; margin-top: 5rem; }
.principles article { padding-top: 1.5rem; border-top: 1px solid #585951; }
.principle-label { color: #b8b9ad; margin-bottom: 1.5rem; font-size: .75rem; letter-spacing: .1em; }
.principles h3 { font-family: var(--serif); font-size: 1.25rem; line-height: 1.7; margin-bottom: 1rem; }
.principles article > p:last-child { color: #c1c1b6; font-size: 1rem; line-height: 2; }
.foundation-signature { display: flex; align-items: center; flex-wrap: wrap; gap: 2rem 3rem; border-top: 1px solid #585951; margin-top: 4rem; padding-top: 2rem; }
/* Same display scale as the company hero: preserve the approved SVG proportions. */
.foundation-signature img { width: min(100%, 600px); height: auto; margin-left: 0; flex-shrink: 0; }
.foundation-signature > p { font-family: var(--serif); font-size: 1.5rem; line-height: 1.9; }
.foundation-signature .text-link { margin-left: auto; color: #d4d3c9; }
.product-list { margin-top: 4.5rem; }
.product-row { display: grid; grid-template-columns: 2rem 1fr 1.5fr .65fr; align-items: center; gap: 2rem; border-top: 1px solid var(--line); padding-block: 2.5rem; }
.product-row:last-child { border-bottom: 1px solid var(--line); }
.product-number { color: var(--muted); }
.product-name h3 { font-family: Georgia, "Times New Roman", serif; font-size: clamp(2rem, 3vw, 2.625rem); line-height: 1.3; letter-spacing: -.03em; }
.product-name p { color: var(--muted); margin-top: .625rem; font-size: .875rem; }
.product-description { color: var(--muted); font-size: 1rem; line-height: 2; max-width: 32em; }
.product-category { text-align: right; font-size: .75rem; letter-spacing: .06em; color: var(--muted); }
.other-apps { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding-top: 2.5rem; color: var(--muted); }
.other-apps p { font-size: .875rem; }
.other-apps .text-link { min-width: 180px; font-size: .875rem; }
.mobile-break { display: none; }
.app-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2.5rem 4.5rem; margin-top: 3rem; align-items: start; }
.app-card { min-width: 0; padding-top: 2rem; border-top: 1px solid var(--line); display: flex; flex-direction: column; align-items: stretch; }
.app-heading { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; }
.app-heading img { width: 52px; height: 52px; flex-shrink: 0; }
.app-heading h3 { font-size: 1.5rem; line-height: 1.4; letter-spacing: .015em; overflow-wrap: anywhere; }
.app-summary { color: var(--muted); font-size: 1rem; line-height: 1.8; }
.app-primary-link, .journal-more .text-link { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; max-width: 100%; padding: .75rem 1.5rem; border: 0; border-radius: 999px; color: var(--ink); background: #e2ded4; font-size: 1rem; line-height: 1.5; text-decoration: none; }
.app-primary-link { min-width: 160px; margin-top: .5rem; align-self: flex-start; }
.app-primary-link:hover, .journal-more .text-link:hover { color: var(--paper); background: var(--ink); text-decoration: none; }
.app-primary-link:focus-visible, .journal-more .text-link:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }
.app-badge { color: var(--muted); font-size: .8125rem; }
.app-details { margin-top: .25rem; }
.app-details summary { color: var(--muted); cursor: pointer; font-size: .875rem; padding-block: .5rem; min-height: 44px; }
.app-detail-body { padding-top: .75rem; }
.app-detail-body .app-status { margin-bottom: .75rem; }
.app-detail-body .app-actions { margin-top: 0; }
.app-heading h3 a { text-decoration: none; }
.app-heading h3 a:hover { text-decoration: underline; }
.app-heading h3 a span { font-size: 1rem; margin-left: .5rem; color: var(--muted); }
.app-description { font-size: 1rem; color: var(--muted); line-height: 2; }
.app-platforms { display: flex; flex-wrap: wrap; gap: .35rem 1rem; padding: 0; margin: 1.25rem 0 .75rem; list-style: none; color: var(--muted); font-size: .875rem; }
.app-status { font-size: .875rem; margin-bottom: 1.5rem; line-height: 1.8; }
.app-actions { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; margin-top: auto; }
.app-actions a { min-height: 44px; display: inline-flex; align-items: center; text-decoration: underline; font-size: .875rem; }
.app-social { display: flex; flex-wrap: wrap; gap: 0 1.25rem; margin-top: .75rem; }
.app-social a { display: inline-flex; align-items: center; gap: .5rem; min-height: 44px; font-size: .8125rem; color: var(--muted); }
.journal { padding-top: 1rem; }
.journal-posts { list-style: none; padding: 0; margin: 4rem 0; }
.journal-posts li { display: grid; grid-template-columns: 10rem 1fr; gap: 2rem; align-items: baseline; border-top: 1px solid var(--line); padding-block: 1.5rem; }
.journal-posts li:last-child { border-bottom: 1px solid var(--line); }
.journal-posts time { font-size: .875rem; color: var(--muted); }
.journal-posts a { display: flex; justify-content: space-between; gap: 1rem; font-size: 1rem; text-decoration: none; }
.journal-posts a:hover { text-decoration: underline; }
.journal-posts a span { flex-shrink: 0; }
.journal-groups { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 4.5rem; align-items: start; }
.journal-group { border-top: 1px solid var(--line); min-width: 0; }
.journal-group summary { padding-block: 1.25rem; cursor: pointer; font-size: 1.125rem; }
.journal-group summary span { float: right; color: var(--muted); font-size: .75rem; letter-spacing: .1em; padding-top: .375rem; }
.journal-group ul { list-style: none; margin: 0; padding: 0 0 1.5rem; }
.journal-group li a { min-height: 44px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; font-size: .875rem; overflow-wrap: anywhere; }
.official-links { display: flex; flex-wrap: wrap; gap: .75rem 2rem; border-top: 1px solid var(--line); padding-top: 1.5rem; margin-top: 2rem; }
.official-links a { min-height: 44px; display: inline-flex; align-items: center; gap: 1rem; font-size: .875rem; }
.company { padding-top: 1rem; }
.company-reading { margin-top: 2rem; font-size: .875rem; letter-spacing: .08em; color: var(--muted); }
.company-about-link { margin-top: 1.5rem; color: var(--ink); }
.company-profile { max-width: 840px; margin: 4rem 0 0 auto; }
.company-profile > div { display: grid; grid-template-columns: 9rem 1fr; gap: 2rem; padding-block: 1.5rem; border-bottom: 1px solid var(--line); }
.company-profile > div:first-child { border-top: 1px solid var(--line); }
.company-profile dt { color: var(--muted); font-size: .875rem; }
.company-profile dd { margin: 0; font-size: 1rem; }
.profile-secondary { display: block; color: var(--muted); font-size: .875rem; margin-top: .25rem; }
.contact { background: #eae7df; }
.contact-layout { display: grid; grid-template-columns: 1.15fr 1fr; align-items: center; gap: clamp(3rem, 7vw, 7.5rem); padding-top: 4rem; }
.contact .prose { margin-top: 2rem; }
.contact-action { padding-top: 2rem; }
.contact-action .text-link { width: 100%; padding-bottom: 1.25rem; font-family: var(--serif); font-size: clamp(1.5rem, 2.4vw, 2rem); }
.contact-action p { color: var(--muted); font-size: .8125rem; margin-top: 1rem; }
.contact-compact { padding-top: 2rem; gap: 2rem 4rem; }
.contact-compact .prose { margin-top: 1rem; font-size: 1rem; }
.contact-compact .contact-action { padding-top: 0; }
.contact-compact .text-link { font-family: var(--sans); font-size: 1.125rem; padding-bottom: .75rem; }
.site-footer { display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; padding-block: 2rem; color: var(--muted); }
.site-footer small { font-size: .75rem; letter-spacing: .1em; }
.site-footer a { font-size: .875rem; min-height: 44px; display: inline-flex; align-items: center; }
.back-top { gap: 1.5rem; text-decoration: none; }
@media (min-width: 1600px) { .hero-layout { padding-block: 7rem; } }
@media (max-width: 900px) {
  .site-header { min-height: 88px; gap: 1.25rem; }
  .brand { width: 220px; margin-left: -16px; }
  .site-nav { gap: 1.25rem; }
  .header-contact { gap: .5rem; }
  .hero-eyebrow span:last-child { display: none; }
  .hero-layout { gap: 2rem; }
  .hero h1 { font-size: 4.5rem; }
  .hero-description br { display: none; }
  .hero-description { max-width: 24em; }
  .art-caption { margin-top: 2rem; }
  .principles { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2.5rem; }
  .product-row { grid-template-columns: 1.5rem 1fr 1.5fr; gap: 1.5rem; }
  .product-category { display: none; }
}
@media (max-width: 1020px) {
  .site-header { position: relative; flex-wrap: nowrap; min-height: 80px; padding-block: 1rem; gap: 1rem; }
  .site-header > .site-nav, .site-header > .header-contact { display: none; }
  .mobile-menu { display: block; margin-left: auto; }
  .mobile-menu summary { display: flex; align-items: center; justify-content: flex-end; gap: .75rem; min-height: 44px; padding-left: .5rem; font-size: .875rem; white-space: nowrap; list-style: none; cursor: pointer; }
  .mobile-menu summary::-webkit-details-marker { display: none; }
  .menu-symbol::before { content: "+"; font-size: 1.25rem; font-weight: 300; line-height: 1; }
  .mobile-menu[open] .menu-symbol::before { content: "−"; }
  .mobile-menu-links { position: absolute; z-index: 5; top: 100%; left: var(--gutter); right: var(--gutter); padding: .5rem 1.25rem; background: var(--paper); border: 1px solid var(--line); }
  .mobile-menu-links a { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 56px; padding-block: .75rem; border-bottom: 1px solid var(--line); font-size: 1rem; text-decoration: none; }
  .mobile-menu-links a:last-child { border-bottom: 0; }
  .hero-eyebrow { display: none; }
}
@media (max-width: 640px) {
  .brand { width: 200px; margin-left: -14px; }
  .site-header .brand { width: clamp(156px, 46vw, 200px); margin-left: -11px; }
  .hero { padding-top: .75rem; padding-bottom: 1.5rem; }
  .hero-layout { grid-template-columns: 1fr; padding-block: 2rem 2.5rem; gap: 3.5rem; }
  .hero h1 { font-size: clamp(4.25rem, 17vw, 5.5rem); margin-bottom: 1.5rem; }
  .hero-tagline { font-size: 1.625rem; margin-bottom: 1.75rem; }
  .hero-description { font-size: 1rem; }
  .hero-art { width: 100%; max-width: 420px; padding-top: 0; margin-inline: auto; }
  .hero-art .hero-logo { margin-block: 0; }
  .art-caption { margin-top: 1.5rem; }
  .hero-bottom { display: block; }
  .text-link { width: 100%; }
  .scroll-note { display: none; }
  .section-label { font-size: .75rem; letter-spacing: .1em; }
  .section-intro { grid-template-columns: 1fr; padding-top: 2.5rem; gap: 2rem; }
  .foundation { margin-top: 2rem; }
  .principles { grid-template-columns: 1fr; gap: 2rem; margin-top: 3rem; }
  .principle-label { margin-bottom: .75rem; }
  .foundation-signature { gap: 1.5rem; margin-top: 3rem; }
  .foundation-signature > p { font-size: 1.125rem; }
  .foundation-signature .text-link { margin-left: 0; }
  .product-list { margin-top: 3rem; }
  .product-row { grid-template-columns: 1.25rem 1fr; gap: 1rem; padding-block: 2rem; align-items: baseline; }
  .product-description { grid-column: 2; }
  .other-apps { flex-direction: column; align-items: stretch; gap: .75rem; }
  .mobile-break { display: inline; }
  .app-grid { grid-template-columns: 1fr; gap: 1.5rem; margin-top: 2rem; }
  .app-card { padding-top: 1.5rem; }
  .app-heading img { width: 44px; height: 44px; }
  .journal-posts { margin-block: 3rem; }
  .journal-posts li { grid-template-columns: 1fr; gap: .5rem; }
  .journal-groups { grid-template-columns: 1fr; }
  .company-profile { margin-top: 3rem; }
  .company-profile > div { grid-template-columns: 1fr; gap: .5rem; }
  .contact-layout { grid-template-columns: 1fr; padding-top: 2.5rem; gap: 2rem; }
  .contact-action { padding-top: 0; }
  .site-footer { align-items: flex-start; flex-wrap: wrap; }
  .site-footer .brand { width: 200px; }
  .site-footer small { flex-basis: 100%; order: 3; }
  .site-footer .back-top { font-size: .8125rem; margin-left: auto; gap: .5rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}
/* Quiet common footer: use space, not a grid of rules. */
body .site-header.wrap, body .site-footer.wrap { max-width: 1440px; }
.site-footer { display: block; padding-block: 3rem 2rem; }
.footer-main { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem 3rem; }
.footer-identity .brand { display: block; }
.footer-identity p { margin-top: 1rem; font-size: .875rem; }
.footer-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .25rem 1.5rem; }
.footer-nav a { display: flex; align-items: center; min-height: 44px; font-size: .875rem; text-decoration: none; }
.footer-nav a:hover { text-decoration: underline; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem 2rem; margin-top: 2.5rem; }
.footer-bottom nav { display: flex; flex-wrap: wrap; gap: .25rem 1.5rem; }
.footer-bottom a { display: inline-flex; align-items: center; min-height: 44px; font-size: .875rem; }
.site-footer .footer-bottom small { flex-basis: auto; order: 0; font-size: .875rem; }
.site-footer .footer-bottom .back-top { margin-left: 0; }
.sitemap-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem 2rem; padding-top: 2rem; }
.sitemap-links a { display: flex; align-items: center; min-height: 48px; }
@media (max-width: 760px) {
  .footer-main { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .footer-bottom nav { gap: .25rem 1rem; }
  .sitemap-links { grid-template-columns: 1fr; }
}