/* Hallmark · WAKARU formal release · product workbench · calm technical */
@import url("./tokens.css");
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: clip; background: var(--color-paper); }
body { margin: 0; overflow-x: clip; background: var(--color-paper); color: var(--color-ink); font: var(--text-md)/1.65 var(--font-body); text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased; }
body, button, summary { font-family: var(--font-body); }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button, summary { font: inherit; }
h1, h2, h3 { min-width: 0; color: var(--color-ink-strong); font-family: var(--font-display); line-height: 1.05; overflow-wrap: anywhere; text-wrap: balance; }
.shell { inline-size: min(calc(100% - 3rem), var(--page-width)); margin-inline: auto; }
.skip-link { position: fixed; inset-block-start: var(--space-sm); inset-inline-start: var(--space-sm); z-index: var(--z-tooltip); padding: var(--space-xs) var(--space-sm); border-radius: var(--radius-sm); background: var(--color-ink-strong); color: var(--color-paper); text-decoration: none; transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
:focus-visible { outline: 0.1875rem solid var(--color-focus); outline-offset: var(--space-3xs); }

.site-header { position: sticky; inset-block-start: 0; z-index: var(--z-sticky); border-block-end: var(--rule-thin) solid var(--color-rule); background: color-mix(in oklch, var(--color-paper) 90%, transparent); backdrop-filter: blur(1.25rem); }
.nav { min-block-size: 4.5rem; display: flex; align-items: center; gap: var(--space-md); }
.brand { display: inline-flex; align-items: center; gap: var(--space-xs); color: var(--color-ink-strong); font: 700 var(--text-sm)/1 var(--font-mono); letter-spacing: 0.04em; text-decoration: none; white-space: nowrap; }
.brand img { inline-size: 1.8rem; block-size: 1.8rem; border-radius: 0.45rem; }
.nav-links { display: flex; align-items: center; gap: var(--space-lg); margin-inline-start: auto; }
.nav-links > a:not(.button) { color: var(--color-muted); font-size: var(--text-sm); font-weight: 600; text-decoration: none; white-space: nowrap; }
.nav-links > a:not(.button):hover { color: var(--color-ink-strong); }
.command-pill { display: inline-flex; align-items: center; gap: var(--space-xs); min-block-size: 2.5rem; padding-inline: var(--space-sm); border: var(--rule-thin) solid var(--color-rule); border-radius: var(--radius-pill); background: var(--color-paper-raised); font: var(--text-xs)/1 var(--font-mono); }
.language-switcher { position: relative; }
.language-switcher summary { display: flex; align-items: center; gap: var(--space-2xs); min-block-size: 2.5rem; padding-inline: var(--space-xs); border-radius: var(--radius-sm); color: var(--color-muted); cursor: pointer; font: 600 var(--text-xs)/1 var(--font-mono); list-style: none; }
.language-switcher summary::-webkit-details-marker { display: none; }
.language-switcher summary::after { content: "↓"; }
.language-switcher[open] summary::after { content: "↑"; }
.language-switcher summary:hover { background: var(--color-paper-sunk); color: var(--color-ink-strong); }
.language-menu { position: absolute; inset-block-start: calc(100% + var(--space-xs)); inset-inline-end: 0; z-index: var(--z-dropdown); min-inline-size: 10rem; padding: var(--space-2xs); border: var(--rule-thin) solid var(--color-rule); border-radius: var(--radius-md); background: var(--color-paper-raised); box-shadow: var(--shadow-soft); }
.language-menu a { display: flex; align-items: center; justify-content: space-between; min-block-size: 2.75rem; padding-inline: var(--space-xs); border-radius: var(--radius-sm); color: var(--color-muted); font-size: var(--text-sm); text-decoration: none; }
.language-menu a:hover { background: var(--color-paper-sunk); color: var(--color-ink-strong); }
.language-menu a[aria-current="page"]::after { content: "●"; color: var(--color-accent); font-size: var(--text-2xs); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-xs); min-block-size: 2.75rem; padding-inline: var(--space-md); border: var(--rule-control) solid var(--color-rule-strong); border-radius: var(--radius-pill); font-size: var(--text-sm); font-weight: 700; line-height: 1; text-decoration: none; white-space: nowrap; transition: background-color var(--dur-short) var(--ease-out), border-color var(--dur-short) var(--ease-out), color var(--dur-short) var(--ease-out), transform var(--dur-instant) var(--ease-out); }
.button-primary { border-color: var(--color-accent); background: var(--color-accent); color: var(--color-accent-ink); }
.button-primary:hover { border-color: var(--color-accent-hover); background: var(--color-accent-hover); }
.button-secondary { background: transparent; color: var(--color-ink-strong); }
.button-secondary:hover { border-color: var(--color-ink-strong); background: var(--color-paper-raised); }
.button:active { transform: translateY(var(--rule-thin)); }

.hero { position: relative; padding-block: clamp(4rem, 9vw, 8rem); border-block-end: var(--rule-thin) solid var(--color-rule); }
.hero::before { content: ""; position: absolute; inset: 0; pointer-events: none; background-image: linear-gradient(var(--color-rule) var(--rule-thin), transparent var(--rule-thin)), linear-gradient(90deg, var(--color-rule) var(--rule-thin), transparent var(--rule-thin)); background-size: 4rem 4rem; mask-image: linear-gradient(to bottom, black, transparent 68%); opacity: 0.3; }
.hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 0.82fr) minmax(32rem, 1.18fr); gap: clamp(2.5rem, 6vw, 6.5rem); align-items: center; }
.hero-copy { min-width: 0; }
.hero h1 { max-inline-size: 10ch; font-size: var(--text-display); font-weight: 640; letter-spacing: -0.065em; }
.hero h1 strong { color: var(--color-accent); font-weight: inherit; }
.hero-lede { max-inline-size: 34rem; margin-block-start: var(--space-lg); color: var(--color-muted); font-size: var(--text-lg); line-height: 1.65; }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-xs); margin-block-start: var(--space-lg); }
.hero-note { margin-block-start: var(--space-sm); color: var(--color-soft); font: var(--text-xs)/1.5 var(--font-mono); }
.evidence-map { position: relative; min-block-size: 34rem; padding: 4.75rem var(--space-md) var(--space-md) 11.25rem; border: var(--rule-thin) solid var(--color-dark-rule); border-radius: var(--radius-lg); background: var(--color-dark-paper); color: var(--color-dark-ink); box-shadow: var(--shadow-soft); overflow: hidden; }
.evidence-map::before { content: "WAKARU     資料を見る     Studio"; position: absolute; inset-block-start: 0; inset-inline: 0; display: flex; align-items: center; block-size: 3.5rem; padding-inline: 4.5rem var(--space-md); border-block-end: var(--rule-thin) solid var(--color-dark-rule); color: var(--color-dark-muted); font: var(--text-xs)/1 var(--font-mono); word-spacing: 1rem; }
.evidence-map::after { content: "●  ●  ●"; position: absolute; inset-block-start: 1.2rem; inset-inline-start: var(--space-md); color: var(--color-dark-muted); font-size: 0.55rem; letter-spacing: 0.25rem; }
.source-stack { position: absolute; inset-block: 3.5rem 0; inset-inline-start: 0; inline-size: 10rem; display: flex; flex-direction: column; gap: var(--space-2xs); padding: var(--space-md) var(--space-xs); border-inline-end: var(--rule-thin) solid var(--color-dark-rule); background: var(--color-dark-raised); }
.source-chip { display: block; padding: var(--space-xs); border-radius: var(--radius-sm); color: var(--color-dark-muted); font: var(--text-2xs)/1.4 var(--font-mono); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.source-chip:first-child { background: color-mix(in oklch, var(--color-accent) 20%, var(--color-dark-raised)); color: var(--color-dark-ink); }
.source-chip::before { content: "□"; margin-inline-end: var(--space-xs); color: var(--color-accent); }
.answer-sheet { position: relative; z-index: var(--z-base); min-block-size: 27rem; padding: var(--space-xl); border: var(--rule-thin) solid var(--color-dark-rule); border-radius: var(--radius-md); background: var(--color-dark-raised); }
.answer-sheet::before { content: "LIVE"; position: absolute; inset-block-start: var(--space-sm); inset-inline-end: var(--space-sm); padding: var(--space-3xs) var(--space-xs); border: var(--rule-thin) solid var(--color-accent); border-radius: var(--radius-pill); color: var(--color-accent); font: var(--text-2xs)/1.4 var(--font-mono); }
.answer-label { color: var(--color-accent); font: 700 var(--text-xs)/1 var(--font-mono); }
.answer-sheet h2 { max-inline-size: 17ch; margin-block-start: var(--space-lg); color: var(--color-dark-ink); font-size: clamp(1.75rem, 3vw, 2.7rem); line-height: 1.08; }
.answer-sheet p { max-inline-size: 34rem; margin-block-start: var(--space-lg); color: var(--color-dark-muted); }
.citation-row { display: flex; flex-wrap: wrap; gap: var(--space-xs); margin-block-start: var(--space-xl); }
.citation { padding: var(--space-xs) var(--space-sm); border: var(--rule-thin) solid var(--color-dark-rule); border-radius: var(--radius-sm); background: var(--color-dark-paper); color: var(--color-dark-ink); font: var(--text-2xs)/1.4 var(--font-mono); }

.section { padding-block: var(--space-3xl); }
.section-tight { padding-block: var(--space-3xl); background: var(--color-paper-sunk); }
.section-header { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(18rem, 1.2fr); gap: var(--space-xl); margin-block-end: var(--space-xl); align-items: end; }
.section-header h2 { max-inline-size: 14ch; font-size: var(--text-xl); font-weight: 600; letter-spacing: -0.045em; }
.section-header p { max-inline-size: var(--measure); color: var(--color-muted); font-size: var(--text-lg); }
.workflow { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: var(--rule-thin) solid var(--color-rule); border-radius: var(--radius-lg); background: var(--color-paper-raised); list-style: none; overflow: hidden; }
.workflow li { min-block-size: 20rem; display: flex; flex-direction: column; align-items: flex-start; padding: var(--space-xl); border-inline-end: var(--rule-thin) solid var(--color-rule); }
.workflow li:last-child { border-inline-end: 0; }
.step-number { display: grid; place-items: center; inline-size: 2.5rem; block-size: 2.5rem; border: var(--rule-thin) solid var(--color-rule); border-radius: 50%; color: var(--color-accent); font: var(--text-xs)/1 var(--font-mono); }
.workflow h3 { margin-block-start: auto; font-size: 1.55rem; font-weight: 600; line-height: 1.2; }
.workflow p { margin-block-start: var(--space-sm); color: var(--color-muted); }
.capability-layout { display: grid; grid-template-columns: minmax(17rem, 0.72fr) minmax(0, 1.28fr); gap: clamp(2.5rem, 7vw, 7rem); align-items: start; }
.capability-intro { position: sticky; inset-block-start: 7rem; }
.capability-intro::before { content: "SYSTEM / 01"; display: block; margin-block-end: var(--space-md); color: var(--color-accent); font: var(--text-xs)/1 var(--font-mono); }
.capability-intro h2 { max-inline-size: 13ch; font-size: var(--text-xl); letter-spacing: -0.045em; }
.capability-intro p { max-inline-size: 31rem; margin-block-start: var(--space-md); color: var(--color-muted); }
.capability-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-sm); }
.capability-item { min-block-size: 14rem; padding: var(--space-lg); border: var(--rule-thin) solid var(--color-rule); border-radius: var(--radius-md); background: var(--color-paper-raised); }
.capability-item dt { display: flex; flex-direction: column-reverse; gap: var(--space-sm); color: var(--color-ink-strong); font: 600 var(--text-lg)/1.2 var(--font-display); }
.capability-item dt span { color: var(--color-accent); font: 600 var(--text-2xs)/1 var(--font-mono); letter-spacing: 0.06em; }
.capability-item dd { margin-block-start: var(--space-md); color: var(--color-muted); }
.privacy { background: var(--color-dark-paper); color: var(--color-dark-ink); }
.privacy h2 { color: var(--color-dark-ink); }
.privacy-grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: var(--space-3xl); align-items: start; }
.privacy-copy::before { content: "LOCAL-FIRST"; display: block; margin-block-end: var(--space-md); color: var(--color-accent); font: var(--text-xs)/1 var(--font-mono); }
.privacy-copy h2 { max-inline-size: 12ch; font-size: var(--text-xl); }
.privacy-copy p { max-inline-size: 31rem; margin-block-start: var(--space-md); color: var(--color-dark-muted); }
.privacy-list { list-style: none; border-block-start: var(--rule-thin) solid var(--color-dark-rule); }
.privacy-list li { display: grid; grid-template-columns: 2rem minmax(0, 1fr); gap: var(--space-sm); padding-block: var(--space-md); border-block-end: var(--rule-thin) solid var(--color-dark-rule); color: var(--color-dark-muted); }
.privacy-list li::before { content: "✓"; color: var(--color-accent); font-family: var(--font-mono); font-weight: 700; }
.download-panel { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--space-xl); align-items: center; padding: clamp(2rem, 5vw, 4.5rem); border-radius: var(--radius-lg); background: var(--color-accent); color: var(--color-accent-ink); }
.download-panel h2 { color: var(--color-accent-ink); font-size: var(--text-xl); }
.download-panel p { max-inline-size: 49rem; margin-block-start: var(--space-sm); color: color-mix(in oklch, var(--color-accent-ink) 83%, transparent); }
.download-panel .button-primary { border-color: var(--color-accent-ink); background: var(--color-accent-ink); color: var(--color-accent-hover); }
.download-panel .button-primary:hover { background: transparent; color: var(--color-accent-ink); }
.requirements { display: flex; flex-wrap: wrap; gap: var(--space-xs); margin-block-start: var(--space-md); }
.requirements span { padding: var(--space-2xs) var(--space-xs); border: var(--rule-thin) solid color-mix(in oklch, var(--color-accent-ink) 45%, transparent); border-radius: var(--radius-pill); font: var(--text-xs)/1.4 var(--font-mono); white-space: nowrap; }
.site-footer { padding-block: var(--space-lg); border-block-start: var(--rule-thin) solid var(--color-rule); }
.footer-line { display: flex; align-items: center; gap: var(--space-sm); color: var(--color-muted); font-size: var(--text-xs); }
.footer-line .brand { margin-inline-end: auto; }
.footer-line a:not(.brand) { text-underline-offset: var(--space-3xs); white-space: nowrap; }
.footer-line a:not(.brand):hover { color: var(--color-accent); }

@media (max-width: 68rem) {
  .nav-links > a:not(.button), .command-pill { display: none; }
  .hero-grid, .capability-layout, .privacy-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-copy { max-inline-size: 44rem; }
  .evidence-map { max-inline-size: 48rem; }
  .capability-intro { position: static; }
}
@media (max-width: 48rem) {
  .shell { inline-size: min(calc(100% - 2rem), var(--page-width)); }
  .nav { min-block-size: 4rem; gap: var(--space-xs); }
  .nav .button { min-block-size: 2.4rem; padding-inline: var(--space-sm); font-size: var(--text-xs); }
  .hero { padding-block: var(--space-2xl); }
  .hero h1 { font-size: var(--text-display-mobile); letter-spacing: -0.055em; }
  .hero-lede { font-size: var(--text-md); }
  .evidence-map { min-block-size: 31rem; padding: 4.5rem var(--space-sm) var(--space-sm) 7.75rem; }
  .source-stack { inline-size: 7rem; }
  .answer-sheet { min-block-size: 24rem; padding: var(--space-lg); }
  .answer-sheet h2 { font-size: 1.8rem; }
  .section, .section-tight { padding-block: var(--space-2xl); }
  .section-header { grid-template-columns: minmax(0, 1fr); gap: var(--space-md); }
  .workflow { grid-template-columns: minmax(0, 1fr); }
  .workflow li { min-block-size: 15rem; border-inline-end: 0; border-block-end: var(--rule-thin) solid var(--color-rule); }
  .workflow li:last-child { border-block-end: 0; }
  .capability-list { grid-template-columns: minmax(0, 1fr); }
  .capability-item { min-block-size: 0; }
  .download-panel { grid-template-columns: minmax(0, 1fr); }
  .download-panel .button { inline-size: 100%; }
  .footer-line { flex-wrap: wrap; }
  .footer-line .brand { inline-size: 100%; margin-inline-end: 0; }
}
@media (max-width: 26rem) {
  .brand span { display: none; }
  .language-switcher summary { padding-inline: var(--space-2xs); }
  .hero-actions .button { inline-size: 100%; }
  .evidence-map { min-block-size: 30rem; padding-inline-start: var(--space-sm); }
  .source-stack { display: none; }
  .answer-sheet { padding: var(--space-md); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: var(--dur-instant) !important; animation-duration: var(--dur-instant) !important; }
}
@supports not (backdrop-filter: blur(1rem)) { .site-header { background: var(--color-paper); } }