:root {
  --ink: #17322b;
  --green: #075c49;
  --green-dark: #06483b;
  --mint: #dcebe5;
  --cream: #f6f2e8;
  --paper: #fffdf8;
  --orange: #d96f3d;
  --line: rgba(7,92,73,.18);
  --shadow: 0 18px 60px rgba(23,50,43,.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--cream); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.6; }
button, input, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 999; padding: .75rem 1rem; color: white; background: var(--ink); border-radius: .4rem; }
.skip-link:focus { top: 1rem; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.gemba-watermark { position: fixed; z-index: -1; inset: 50% auto auto 50%; transform: translate(-50%,-50%); font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(18rem, 48vw, 46rem); line-height: .8; color: rgba(7,92,73,.035); writing-mode: vertical-rl; pointer-events: none; user-select: none; }

.site-header { position: sticky; z-index: 20; top: 0; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 2rem; min-height: 76px; padding: 0 clamp(1.2rem, 4vw, 4.5rem); background: rgba(246,242,232,.92); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.brand { display: inline-flex; align-items: center; gap: .65rem; font-weight: 800; font-size: 1.1rem; text-decoration: none; letter-spacing: -.02em; }
.brand-mark { display: grid; place-items: center; width: 2.3rem; height: 2.3rem; color: white; background: var(--green); border-radius: 50%; font-family: "Yu Mincho", serif; font-size: 1.15rem; }
#site-nav { display: flex; justify-content: center; gap: clamp(.8rem, 2vw, 2rem); }
#site-nav a, footer nav a { text-decoration: none; font-size: .9rem; font-weight: 650; }
#site-nav a:hover, #site-nav a:focus-visible, footer nav a:hover { color: var(--green); }
.nav-toggle { display: none; border: 0; background: transparent; color: var(--ink); font-weight: 750; }

.button { display: inline-flex; justify-content: center; align-items: center; min-height: 48px; padding: .8rem 1.2rem; color: white; background: var(--green); border: 1px solid var(--green); border-radius: .45rem; font-weight: 750; text-decoration: none; cursor: pointer; transition: transform .2s, background .2s, box-shadow .2s; }
.button:hover { background: var(--green-dark); box-shadow: 0 8px 24px rgba(7,92,73,.2); transform: translateY(-1px); }
.button:focus-visible, .text-link:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid rgba(217,111,61,.45); outline-offset: 3px; }
.button-small { min-height: 40px; padding: .55rem .9rem; font-size: .86rem; }
.button-light { color: var(--green-dark); background: white; border-color: white; }
.button-light:hover { color: white; background: transparent; }
.text-link { display: inline-flex; align-items: center; gap: .4rem; padding: .4rem 0; color: var(--green); background: none; border: 0; font-weight: 800; text-decoration: none; cursor: pointer; }
.text-link.light { color: white; }

.hero { display: grid; grid-template-columns: minmax(0,1.25fr) minmax(300px,.75fr); gap: clamp(3rem, 7vw, 8rem); align-items: center; width: min(1240px, calc(100% - 2.4rem)); min-height: calc(100vh - 76px); margin: auto; padding: clamp(4rem, 9vw, 8rem) 0; }
.hero-copy h1 { max-width: 830px; margin: .6rem 0 1.3rem; font-family: Georgia, "Times New Roman", serif; font-size: clamp(3rem, 6vw, 6.25rem); line-height: .96; letter-spacing: -.055em; font-weight: 500; }
.eyebrow { margin: 0 0 .65rem; color: var(--orange); font-size: .77rem; font-weight: 850; letter-spacing: .15em; text-transform: uppercase; }
.hero-lede { max-width: 700px; margin: 0; font-size: clamp(1.08rem, 1.8vw, 1.35rem); color: #38564e; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1.2rem; margin-top: 2rem; }
.trust-list { display: flex; flex-wrap: wrap; gap: .8rem 1.4rem; margin: 2.2rem 0 0; padding: 0; list-style: none; color: #536d66; font-size: .88rem; }
.trust-list li::before { content: "•"; margin-right: .55rem; color: var(--orange); }
.hero-card { position: relative; padding: clamp(1.6rem, 3vw, 2.4rem); color: white; background: var(--green); border-radius: 1rem; box-shadow: var(--shadow); overflow: hidden; }
.hero-card::after { content: ""; position: absolute; width: 14rem; height: 14rem; right: -6rem; top: -6rem; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; }
.kanji { display: block; font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(5rem, 9vw, 8rem); line-height: 1; letter-spacing: -.12em; text-align: center; }
.hero-card > p { max-width: 330px; margin: 1.3rem auto 2rem; text-align: center; color: #e3f0eb; }
.hero-card ol { margin: 0; padding: 0; list-style: none; }
.hero-card li { display: flex; align-items: center; gap: 1rem; padding: .8rem 0; border-top: 1px solid rgba(255,255,255,.17); font-weight: 750; }
.hero-card li span { color: #9ed0bf; font-size: .75rem; letter-spacing: .1em; }

.section { width: min(1180px, calc(100% - 2.4rem)); margin: 0 auto; padding: clamp(5rem, 10vw, 9rem) 0; }
.section-heading { max-width: 710px; margin-bottom: 3rem; }
.section h2 { margin: .5rem 0 1rem; font-family: Georgia, "Times New Roman", serif; font-size: clamp(2.35rem, 4.6vw, 4.4rem); line-height: 1.02; letter-spacing: -.04em; font-weight: 500; }
.section-heading > p:last-child { color: #536d66; font-size: 1.1rem; }
.method { border-top: 1px solid var(--line); }
.method-grid { display: grid; grid-template-columns: repeat(5,1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.method-grid article { min-height: 240px; padding: 1.6rem; border-right: 1px solid var(--line); }
.method-grid article:last-child { border: 0; }
.method-grid span { color: var(--orange); font-size: .74rem; font-weight: 850; }
.method-grid h3 { margin: 3.5rem 0 .5rem; font-size: 1.15rem; }
.method-grid p { margin: 0; color: #536d66; font-size: .92rem; }

.solutions { width: 100%; padding-left: max(1.2rem, calc((100% - 1180px)/2)); padding-right: max(1.2rem, calc((100% - 1180px)/2)); background: var(--paper); }
.cards { display: grid; grid-template-columns: repeat(2,1fr); gap: 1rem; }
.solution-card { min-height: 250px; padding: clamp(1.6rem, 3vw, 2.5rem); background: var(--cream); border: 1px solid var(--line); border-radius: .7rem; }
.solution-card.featured { color: white; background: var(--green); }
.solution-card h3 { margin: .2rem 0 .9rem; font-size: clamp(1.4rem, 2.5vw, 2rem); }
.solution-card p { max-width: 560px; color: #536d66; }
.solution-card.featured p { color: #dcebe5; }
.solution-card.featured .text-link { color: white; }
.card-label { font-size: .72rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }

.assessment { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(3rem, 8vw, 8rem); align-items: start; }
.assessment-copy > p:not(.eyebrow), .assessment-copy li { color: #536d66; }
.calculator { display: grid; gap: 1rem; padding: clamp(1.5rem, 4vw, 3rem); background: var(--paper); border: 1px solid var(--line); border-radius: .8rem; box-shadow: var(--shadow); }
.calculator label { display: grid; gap: .35rem; font-size: .86rem; font-weight: 750; }
.calculator input[type="number"] { width: 100%; padding: .8rem; border: 1px solid #b8c9c3; border-radius: .35rem; background: white; }
.calculator input[type="range"] { width: 100%; accent-color: var(--green); }
.calculator output { color: var(--green); font-size: 1.2rem; }
.estimate { padding: 1.2rem; text-align: center; background: var(--mint); border-radius: .45rem; }
.estimate p { margin: 0; font-size: .78rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.estimate strong { display: block; margin: .2rem 0; font-family: Georgia, serif; font-size: 2rem; color: var(--green-dark); }
.estimate small { color: #536d66; }

.meaning { display: grid; grid-template-columns: minmax(230px,.6fr) 1.4fr; gap: clamp(2rem, 8vw, 8rem); align-items: center; width: 100%; padding-left: max(1.2rem, calc((100% - 1180px)/2)); padding-right: max(1.2rem, calc((100% - 1180px)/2)); background: var(--green); color: white; }
.meaning-symbol { font-family: "Yu Mincho", "Hiragino Mincho ProN", serif; font-size: clamp(7rem, 18vw, 15rem); line-height: .8; text-align: center; letter-spacing: -.16em; }
.meaning p:not(.eyebrow) { max-width: 720px; color: #dcebe5; font-size: 1.05rem; }
.meaning .eyebrow { color: #f1a17d; }
.about { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 8vw, 8rem); border-bottom: 1px solid var(--line); }
.about p { color: #536d66; font-size: 1.08rem; }
.discovery { width: min(1180px, calc(100% - 2.4rem)); margin-top: 6rem; margin-bottom: 6rem; padding: clamp(3rem, 7vw, 6rem); color: white; background: var(--green-dark); border-radius: 1rem; }
.discovery > p:not(.eyebrow) { max-width: 720px; color: #dcebe5; }
.privacy { padding-top: 0; }
.privacy details { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.privacy summary { padding: 1.2rem 0; font-weight: 800; cursor: pointer; }
.privacy details div { max-width: 800px; padding-bottom: 1.5rem; color: #536d66; }

footer { display: grid; grid-template-columns: 1fr auto; gap: .8rem 2rem; align-items: center; padding: 3rem max(1.2rem, calc((100% - 1180px)/2)); background: var(--paper); border-top: 1px solid var(--line); }
.footer-brand { width: max-content; }
footer > p { margin: 0; color: #627a73; }
footer nav { display: flex; gap: 1.5rem; grid-row: 1 / span 2; grid-column: 2; }
.copyright { font-size: .8rem; }

.chat { width: min(480px, calc(100vw - 1.2rem)); height: min(720px, calc(100vh - 1.2rem)); max-height: none; margin: auto 1rem 1rem auto; padding: 0; color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: .9rem; box-shadow: 0 24px 80px rgba(10,30,24,.28); overflow: hidden; }
.chat::backdrop { background: rgba(9,29,24,.28); backdrop-filter: blur(2px); }
.chat[open] { display: grid; grid-template-rows: auto auto 1fr auto auto; }
.chat-header { display: flex; justify-content: space-between; align-items: center; padding: 1rem 1.1rem; color: white; background: var(--green); }
.chat-header > div { position: relative; padding-left: 1rem; }
.status-dot { position: absolute; left: 0; top: .45rem; width: .55rem; height: .55rem; background: #79d6ab; border-radius: 50%; box-shadow: 0 0 0 3px rgba(121,214,171,.15); }
.chat-header p { margin: 0; font-size: .68rem; text-transform: uppercase; letter-spacing: .12em; color: #b9d8cd; }
.chat-header h2 { margin: 0; font: 750 1.05rem/1.3 Inter, sans-serif; letter-spacing: 0; }
.icon-button { width: 2.4rem; height: 2.4rem; color: white; background: transparent; border: 1px solid rgba(255,255,255,.25); border-radius: 50%; font-size: 1.5rem; cursor: pointer; }
.ai-notice { display: grid; padding: .7rem 1rem; background: var(--mint); font-size: .72rem; line-height: 1.35; }
.ai-notice span { color: #536d66; }
.messages { padding: 1rem; overflow-y: auto; overscroll-behavior: contain; }
.message { display: grid; grid-template-columns: 1.8rem 1fr; gap: .55rem; align-items: start; margin-bottom: .9rem; }
.message > span { display: grid; place-items: center; width: 1.8rem; height: 1.8rem; color: white; background: var(--green); border-radius: 50%; font-size: .62rem; font-weight: 850; }
.message p { margin: 0; padding: .75rem .85rem; background: #edf4f1; border-radius: .2rem .7rem .7rem .7rem; font-size: .91rem; white-space: pre-wrap; }
.message.user { grid-template-columns: 1fr; justify-items: end; }
.message.user > span { display: none; }
.message.user p { max-width: 85%; color: white; background: var(--green); border-radius: .7rem .2rem .7rem .7rem; }
.message.thinking p { color: #627a73; font-style: italic; }
.chat-form { display: grid; grid-template-columns: 1fr auto; gap: .55rem; padding: .8rem; border-top: 1px solid var(--line); }
.chat-form textarea { width: 100%; min-height: 48px; max-height: 120px; padding: .7rem; resize: vertical; border: 1px solid #b8c9c3; border-radius: .45rem; }
.send-button { align-self: end; min-height: 48px; padding: .6rem .9rem; color: white; background: var(--green); border: 0; border-radius: .45rem; font-weight: 800; cursor: pointer; }
.send-button:disabled { opacity: .55; cursor: wait; }
.chat-footnote { margin: 0; padding: 0 .9rem .7rem; color: #6d817b; font-size: .68rem; text-align: center; }

@media (max-width: 960px) {
  .site-header { grid-template-columns: auto auto 1fr; gap: .8rem; }
  .nav-toggle { display: block; grid-column: 2; }
  #site-nav { display: none; position: absolute; top: 76px; left: 0; right: 0; flex-direction: column; gap: 0; padding: .7rem 1.2rem 1rem; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  #site-nav.open { display: flex; }
  #site-nav a { padding: .65rem 0; }
  .header-cta { justify-self: end; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-card { max-width: 600px; }
  .method-grid { grid-template-columns: repeat(2,1fr); }
  .method-grid article { border-bottom: 1px solid var(--line); }
  .assessment { gap: 3rem; }
}

@media (max-width: 700px) {
  .site-header { min-height: 66px; }
  #site-nav { top: 66px; }
  .header-cta { display: none; }
  .site-header { grid-template-columns: 1fr auto; }
  .nav-toggle { grid-column: 2; }
  .hero { min-height: auto; padding: 4rem 0 5rem; }
  .hero-copy h1 { font-size: clamp(2.7rem, 14vw, 4.2rem); }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .text-link { justify-content: center; }
  .trust-list { display: grid; }
  .method-grid, .cards, .assessment, .meaning, .about { grid-template-columns: 1fr; }
  .method-grid article { min-height: 170px; border-right: 0; }
  .method-grid h3 { margin-top: 1.8rem; }
  .meaning-symbol { margin-bottom: 1rem; }
  .discovery { margin-top: 2rem; margin-bottom: 2rem; border-radius: .7rem; }
  footer { grid-template-columns: 1fr; }
  footer nav { grid-row: auto; grid-column: auto; flex-wrap: wrap; }
  .chat { width: calc(100vw - .5rem); height: calc(100vh - .5rem); margin: .25rem; border-radius: .65rem; }
}

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