/* 無限翻訳 公開サイト。配色・タイポグラフィは papyrus.coremedica.jp に合わせる */
:root {
  color-scheme: dark;
  --ink: #060606;
  --ink-soft: #0d0d0f;
  --ink-raised: #15151a;
  --graphite: #2a2a30;
  --smoke: #6b6b73;
  --mist: #a7a7af;
  --paper-dim: #ece9dc;
  --paper: #fffdf3;
  --font-sans: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --content: 1152px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  font-synthesis: none;
}
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--paper); outline-offset: 4px; border-radius: 999px; }
h1, h2, h3, p, dl, dd, ol, ul, figure { margin: 0; }
.wrap { width: min(var(--content), calc(100% - 48px)); margin-inline: auto; }
.grain { background-image: radial-gradient(#fffdf30a 1px, #0000 1px); background-size: 4px 4px; }
.eyebrow { font-size: 13px; font-weight: 500; letter-spacing: .3em; text-transform: uppercase; color: var(--smoke); }
.skip { position: absolute; left: 16px; top: -80px; padding: 12px 16px; background: var(--ink-raised); border-radius: 12px; z-index: 60; }
.skip:focus { top: 16px; }

/* Header */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  background: color-mix(in srgb, var(--ink) 72%, transparent);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom: 1px solid color-mix(in srgb, var(--graphite) 60%, transparent);
}
.header-inner { height: 64px; display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 600; letter-spacing: -.01em; white-space: nowrap; }
.brand img { width: 28px; height: 28px; border-radius: 7px; }
.site-nav { display: flex; gap: 28px; margin-inline: auto; }
.site-nav a { font-size: 14px; color: var(--mist); transition: color .2s; }
.site-nav a:hover, .site-nav a[aria-current] { color: var(--paper); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.lang { font-size: 13px; color: var(--mist); border: 1px solid color-mix(in srgb, var(--graphite) 80%, transparent); border-radius: 999px; padding: 6px 12px; }
.lang:hover { color: var(--paper); }
.pill { display: inline-flex; align-items: center; gap: 8px; border-radius: 999px; padding: 9px 20px; font-size: 14px; font-weight: 500; white-space: nowrap; transition: opacity .2s, background .2s; }
.pill-light { background: var(--paper); color: var(--ink); }
.pill-light:hover { opacity: .88; }
.pill-ghost { border: 1px solid var(--graphite); color: var(--paper-dim); }
.pill-ghost:hover { background: var(--ink-raised); }
.pill-soon { background: var(--ink-raised); color: var(--mist); border: 1px solid var(--graphite); cursor: default; }

/* Hero */
.hero { position: relative; isolation: isolate; min-height: 100svh; display: flex; align-items: center; overflow: hidden; padding: 120px 0 80px; }
.beam {
  position: absolute; z-index: -1; inset: -40% -30% auto auto; width: 70vw; height: 160%;
  background: linear-gradient(90deg, transparent 0%, #fffdf30d 30%, #fffdf333 50%, #fffdf30d 70%, transparent 100%);
  transform: rotate(38deg); transform-origin: top right; filter: blur(2px);
}
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 64px; align-items: center; }
.hero h1 {
  margin-top: 24px; font-size: clamp(44px, 7vw, 88px); font-weight: 600; line-height: 1.04; letter-spacing: -.045em;
  background: linear-gradient(120deg, #8d8b83 0%, #8d8b83 38%, var(--paper) 50%, #8d8b83 62%, #8d8b83 100%);
  background-size: 300% 100%; background-position: 100% 0;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: sheen 3.6s cubic-bezier(.45, 0, .2, 1) .4s 1 both;
}
:lang(ja) .hero h1 { letter-spacing: -.02em; line-height: 1.12; }
@keyframes sheen { from { background-position: 100% 0; } to { background-position: 0 0; } }
.hero-lead { margin-top: 28px; max-width: 34em; font-size: 18px; line-height: 1.75; color: var(--paper-dim); }
.hero-cta { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 12px; }
.hero-note { margin-top: 20px; font-size: 13px; color: var(--smoke); }

/* Sheet mock */
.mock {
  border-radius: 36px; padding: 22px; background: linear-gradient(180deg, var(--ink-raised), var(--ink-soft));
  border: 1px solid var(--graphite); box-shadow: 0 40px 120px #000c, inset 0 1px 0 #ffffff0d;
}
.mock-bar { display: flex; align-items: center; justify-content: space-between; color: var(--mist); }
.mock-bar svg { width: 20px; height: 20px; }
.chips { display: flex; align-items: center; gap: 8px; font: 600 13px ui-monospace, SFMono-Regular, Menlo, monospace; }
.chip { background: #ffffff12; border-radius: 999px; padding: 4px 12px; color: var(--paper-dim); }
.mock-text { margin-top: 22px; font-size: 17px; line-height: 1.7; color: var(--paper-dim); }
.mock-text .w { opacity: 0; animation: wordIn .5s ease-out forwards; }
@keyframes wordIn { to { opacity: 1; } }
.mock-skeleton { margin-top: 12px; display: grid; gap: 17px; padding-bottom: 6px; }
.mock-skeleton i { display: block; height: 12px; border-radius: 6px; background: linear-gradient(90deg, #fffdf31a 0%, #fffdf324 50%, #fffdf31a 100%); background-size: 200% 100%; animation: shimmer 1.4s linear infinite; }
.mock-skeleton i:nth-child(2) { width: 92%; } .mock-skeleton i:nth-child(3) { width: 60%; }
@keyframes shimmer { from { background-position: 100% 0; } to { background-position: -100% 0; } }

/* Sections */
.section { padding: 176px 0; }
.section h2 { margin-top: 20px; font-size: clamp(32px, 4.4vw, 52px); font-weight: 600; line-height: 1.15; letter-spacing: -.035em; max-width: 18em; text-wrap: balance; }
:lang(ja) .section h2 { letter-spacing: -.01em; }
.section-lead { margin-top: 24px; max-width: 38em; font-size: 18px; line-height: 1.8; color: var(--mist); }
.features { margin-top: 72px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 56px 48px; }
.feature svg { width: 28px; height: 28px; color: var(--paper); stroke: currentColor; fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.feature h3 { margin-top: 20px; font-size: 20px; font-weight: 600; letter-spacing: -.01em; }
.feature p { margin-top: 10px; font-size: 15px; line-height: 1.75; color: var(--mist); }

.steps { margin-top: 64px; display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; list-style: none; padding: 0; counter-reset: step; }
.steps li { counter-increment: step; border: 1px solid var(--graphite); border-radius: 20px; padding: 20px; background: var(--ink-soft); }
.steps li::before { content: counter(step); display: block; font: 600 12px ui-monospace, Menlo, monospace; color: var(--smoke); }
.steps strong { display: block; margin-top: 18px; font-size: 17px; font-weight: 600; }
.steps span { display: block; margin-top: 4px; font-size: 13px; color: var(--mist); }
.then { margin-top: 32px; font-size: 16px; color: var(--mist); }
.then b { color: var(--paper); font-weight: 600; }

.specs { margin-top: 72px; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--graphite); }
.specs div { padding: 28px 24px 0 0; }
.specs dd { font-size: 30px; font-weight: 600; letter-spacing: -.03em; }
.specs dt { margin-top: 6px; font-size: 12px; letter-spacing: .08em; color: var(--smoke); }
.credit { margin-top: 48px; font-size: 13px; color: var(--smoke); }

.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: end; }
.mail { display: inline-block; margin-top: 20px; font-size: clamp(24px, 3vw, 36px); font-weight: 600; letter-spacing: -.02em; word-break: break-all; }
.mail:hover { text-decoration: underline; text-underline-offset: 6px; text-decoration-thickness: 1px; }
.contact .muted { margin-top: 20px; }
.muted { font-size: 14px; line-height: 1.7; color: var(--smoke); }
.links { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap; }

/* Document pages (support / privacy) */
.doc { padding: 152px 0 128px; }
.doc .wrap { max-width: 760px; }
.doc h1 { margin-top: 20px; font-size: clamp(36px, 5vw, 56px); font-weight: 600; letter-spacing: -.035em; line-height: 1.15; }
.doc .status { margin-top: 16px; font-size: 14px; color: var(--smoke); }
.doc h2 { margin-top: 56px; font-size: 22px; font-weight: 600; letter-spacing: -.01em; }
.doc h3 { margin-top: 32px; font-size: 17px; font-weight: 600; }
.doc p, .doc li { margin-top: 12px; font-size: 16px; line-height: 1.85; color: var(--mist); }
.doc ul { padding-left: 1.2em; }
.doc a { color: var(--paper); text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1px; }
.doc strong { color: var(--paper-dim); font-weight: 600; }

/* Footer */
.site-footer { border-top: 1px solid var(--graphite); background: var(--ink); color: var(--mist); }
.footer-grid { display: grid; grid-template-columns: 2fr repeat(3, 1fr); gap: 48px; padding: 64px 0 48px; }
.site-footer .brand { color: var(--paper); }
.site-footer p { margin-top: 16px; font-size: 14px; line-height: 1.7; color: var(--smoke); }
.site-footer h3 { font-size: 12px; font-weight: 500; letter-spacing: .2em; text-transform: uppercase; color: var(--smoke); }
.site-footer nav { display: grid; gap: 10px; margin-top: 16px; }
.site-footer nav a { font-size: 14px; color: var(--mist); }
.site-footer nav a:hover { color: var(--paper); }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; padding: 24px 0 40px; border-top: 1px solid var(--graphite); font-size: 12px; color: var(--smoke); }

@media (max-width: 900px) {
  .site-nav { display: none; }
  .hero-grid, .contact { grid-template-columns: 1fr; }
  .mock { max-width: 440px; }
  .features { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .specs { grid-template-columns: 1fr 1fr; row-gap: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 112px 0; }
}
@media (max-width: 560px) {
  .header-actions .pill { display: none; }
  .features, .steps { grid-template-columns: 1fr; }
  .hero { padding-top: 104px; }
  .footer-bottom { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero h1 { animation: none; background-position: 0 0; }
  .mock-text .w { animation: none; opacity: 1; }
  .mock-skeleton i { animation: none; }
}