:root {
  --ink: #132238; --ink-soft: #243b55; --mint: #d9f1e8; --mint-deep: #7cc9ac;
  --lime: #dfff70; --coral: #ff8b76; --paper: #f8faf6; --white: #fff; --line: rgba(19, 34, 56, .2);
  --font-sans: "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  --font-serif: "Yu Mincho", "Hiragino Mincho ProN", serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--font-sans); font-size: 16px; line-height: 1.85; }
button, input, textarea { font: inherit; }
.skip-link { position: fixed; left: -9999px; top: 1rem; z-index: 20; background: var(--white); color: var(--ink); padding: .7rem 1rem; }
.skip-link:focus { left: 1rem; }
.site-header { min-height: 78px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 1rem; padding: .75rem clamp(1.2rem, 5vw, 5rem); background: var(--white); border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: .75rem; color: inherit; text-decoration: none; width: fit-content; line-height: 1; }
.brand-mark { width: 42px; height: 42px; display: grid; place-items: center; flex: 0 0 auto; color: var(--ink); background: var(--lime); border: 2px solid var(--ink); border-radius: 10px 10px 18px 10px; font-weight: 900; box-shadow: 3px 3px 0 var(--ink); transform: rotate(-4deg); }
.brand b, .brand small { display: block; letter-spacing: .11em; }
.brand b { font-size: .9rem; }
.brand small { font-size: .59rem; margin-top: .5rem; color: #617083; }
.header-note { margin: 0; font-size: .68rem; letter-spacing: .12em; font-weight: 700; }
.header-link { justify-self: end; display: inline-flex; gap: 1rem; align-items: center; color: var(--white); background: var(--ink); min-height: 44px; padding: .5rem .65rem .5rem 1rem; text-decoration: none; font-size: .82rem; font-weight: 800; }
.header-link span { width: 28px; height: 28px; display: grid; place-items: center; color: var(--ink); background: var(--lime); border-radius: 50%; }
.hero { min-height: 680px; display: grid; grid-template-columns: minmax(0, 48%) minmax(0, 52%); overflow: hidden; }
.hero-copy { display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding: clamp(4rem, 8vw, 7.5rem) clamp(1.4rem, 6vw, 6rem); color: var(--white); background: var(--ink); }
.eyebrow { margin: 0 0 1rem; color: var(--coral); font-size: .7rem; font-weight: 900; letter-spacing: .22em; }
.hero h1 { margin: 0; font-family: var(--font-serif); font-size: clamp(3rem, 5.3vw, 6.2rem); font-weight: 700; line-height: 1.22; letter-spacing: -.07em; }
.hero h1 em { color: var(--lime); font-style: normal; }
.hero-lead { max-width: 34rem; margin: 2rem 0; color: #dce5ed; font-size: 1.02rem; }
.primary-button { min-width: min(100%, 310px); min-height: 62px; display: inline-flex; align-items: center; justify-content: space-between; gap: 2rem; padding: .8rem 1rem .8rem 1.35rem; color: var(--ink); background: var(--lime); border: 2px solid var(--lime); text-decoration: none; font-weight: 900; box-shadow: 7px 7px 0 rgba(0, 0, 0, .28); transition: transform .2s ease, box-shadow .2s ease; }
.primary-button:hover { transform: translate(-2px, -2px); box-shadow: 10px 10px 0 rgba(0, 0, 0, .28); }
.primary-button span { font-size: 1.4rem; }
.hero-art { position: relative; min-height: 680px; overflow: hidden; background: linear-gradient(150deg, #e7f5ef 0 48%, #b8ded0 48%); }
.hero-art::before { content: ""; position: absolute; width: 360px; height: 360px; left: 8%; top: 10%; border: 2px dashed rgba(19, 34, 56, .16); border-radius: 50%; }
.sun { position: absolute; top: 10%; right: 9%; width: 96px; height: 96px; border-radius: 50%; background: var(--coral); box-shadow: 0 0 0 20px rgba(255, 139, 118, .12); }
.window { position: absolute; left: 14%; top: 17%; width: 48%; height: 42%; display: grid; grid-template-columns: 1fr 1fr; border: 13px solid var(--white); box-shadow: 0 14px 40px rgba(19, 34, 56, .16); }
.window i { display: block; background: linear-gradient(160deg, #9fd7e3, #eaf8f4); border: 3px solid var(--white); }
.plant { position: absolute; right: 10%; bottom: 23%; width: 160px; height: 230px; }
.plant span { position: absolute; left: 45px; bottom: 0; width: 94px; height: 85px; background: var(--coral); border-radius: 12px 12px 35px 35px; border: 3px solid var(--ink); }
.plant i { position: absolute; left: 70px; bottom: 65px; width: 55px; height: 115px; background: var(--mint-deep); border: 3px solid var(--ink); border-radius: 100% 0 100% 0; transform-origin: bottom; }
.plant i:nth-child(1) { transform: rotate(-46deg); }
.plant i:nth-child(2) { height: 140px; transform: rotate(-10deg); }
.plant i:nth-child(3) { transform: rotate(38deg); }
.table { position: absolute; left: 0; right: 0; bottom: 0; height: 28%; background: #efcfa0; border-top: 5px solid var(--ink); }
.notebook { position: absolute; left: 16%; bottom: 12%; width: 230px; height: 155px; background: var(--white); border: 3px solid var(--ink); box-shadow: 13px 13px 0 var(--lime); transform: rotate(-5deg); }
.notebook::before { content: ""; position: absolute; left: 28px; top: 0; bottom: 0; border-left: 3px solid var(--coral); }
.notebook i { position: relative; display: block; width: 145px; height: 3px; margin: 29px 0 0 56px; background: #9fb0bc; }
.mug { position: absolute; right: 27%; bottom: 15%; width: 92px; height: 105px; background: var(--ink-soft); border: 3px solid var(--ink); border-radius: 4px 4px 28px 28px; }
.mug::after { content: ""; position: absolute; right: -36px; top: 18px; width: 43px; height: 49px; border: 12px solid var(--ink-soft); border-left: 0; border-radius: 0 30px 30px 0; }
.art-caption { position: absolute; z-index: 2; right: 1.5rem; top: 43%; margin: 0; padding: .9rem 1.1rem; background: var(--white); border-left: 5px solid var(--coral); font-size: .72rem; line-height: 1.65; transform: rotate(2deg); }
.art-caption b { letter-spacing: .12em; }
.facts { display: grid; grid-template-columns: repeat(4, 1fr); color: var(--white); background: var(--ink-soft); }
.facts div { padding: 1.45rem clamp(1rem, 3vw, 2.6rem); border-right: 1px solid rgba(255, 255, 255, .25); }
.facts div:last-child { border-right: 0; }
.facts small, .facts strong { display: block; }
.facts small { color: var(--lime); font-size: .62rem; font-weight: 900; letter-spacing: .2em; }
.facts strong { margin-top: .35rem; font-size: .9rem; }
.section-pad { padding: clamp(5.5rem, 10vw, 9rem) clamp(1.4rem, 6vw, 7rem); }
.purpose { display: grid; grid-template-columns: .8fr 1.5fr; gap: clamp(3rem, 8vw, 9rem); background: var(--paper); }
.section-intro h2, .survey-copy h2 { margin: 0; font-family: var(--font-serif); font-size: clamp(2.6rem, 4.3vw, 5.1rem); line-height: 1.32; letter-spacing: -.06em; }
.purpose-lead { max-width: 46rem; margin: 0 0 3rem; font-size: 1.1rem; }
.purpose-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); background: var(--white); }
.purpose-grid article { min-height: 260px; padding: 1.6rem; border-right: 1px solid var(--line); }
.purpose-grid article:last-child { border-right: 0; }
.purpose-grid span { display: block; color: var(--coral); font-size: 2rem; font-weight: 900; }
.purpose-grid h3 { margin: 2.8rem 0 .7rem; font-size: 1.05rem; }
.purpose-grid p { margin: 0; color: #536275; font-size: .86rem; }
.safety { background: var(--mint); }
.safety-heading { display: flex; justify-content: space-between; align-items: end; gap: 2rem; margin-bottom: 3.5rem; }
.safety-heading .eyebrow { flex: 0 0 auto; }
.safety-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.safety-grid article { min-height: 255px; padding: 1.7rem; background: var(--white); border-top: 5px solid var(--ink); box-shadow: 0 8px 0 rgba(19, 34, 56, .08); }
.safety-grid article:nth-child(2) { border-color: var(--coral); }
.safety-grid article:nth-child(3) { border-color: #e5b42d; }
.safety-grid article:nth-child(4) { border-color: var(--mint-deep); }
.safety-grid article > span { font-size: 1.8rem; font-weight: 900; }
.safety-grid h3 { margin: 2.3rem 0 .5rem; font-size: 1rem; }
.safety-grid p { margin: 0; color: #536275; font-size: .84rem; }
.survey { display: grid; grid-template-columns: .75fr 1.25fr; gap: clamp(3rem, 8vw, 8rem); color: var(--white); background: var(--ink); }
.survey-copy { position: sticky; top: 2rem; align-self: start; }
.survey-copy .eyebrow { color: var(--lime); }
.survey-copy > p:not(.eyebrow) { max-width: 29rem; color: #c9d4df; }
.survey-copy ol { list-style: none; margin: 3rem 0 0; padding: 0; border-top: 1px solid rgba(255, 255, 255, .25); }
.survey-copy li { display: flex; align-items: center; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid rgba(255, 255, 255, .25); font-size: .85rem; }
.survey-copy li span { width: 28px; height: 28px; display: grid; place-items: center; color: var(--ink); background: var(--lime); border-radius: 50%; font-size: .72rem; font-weight: 900; }
.survey-card { color: var(--ink); background: var(--white); padding: clamp(1.5rem, 4vw, 3.2rem); box-shadow: 12px 12px 0 var(--coral); }
.form-heading { display: flex; justify-content: space-between; gap: 1rem; align-items: center; padding-bottom: 1.1rem; border-bottom: 2px solid var(--ink); }
.form-heading p, .form-heading span { margin: 0; font-size: .7rem; font-weight: 900; letter-spacing: .14em; }
.form-heading span { color: #687688; }
fieldset { margin: 2.2rem 0 0; padding: 0; border: 0; }
legend, .textarea-label { display: block; width: 100%; margin-bottom: 1rem; font-weight: 900; }
legend > span, .textarea-label > span { color: var(--coral); margin-right: .6rem; }
.textarea-label small { color: #687688; font-weight: 500; }
.choice-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .65rem; }
.choice-grid input, .choice-list input { position: absolute; opacity: 0; }
.choice-grid label > span, .choice-list label > span { display: block; cursor: pointer; border: 1px solid var(--line); transition: background .2s ease, border-color .2s ease, transform .2s ease; }
.choice-grid label > span { min-height: 96px; padding: 1rem; }
.choice-grid b, .choice-grid small, .choice-list b, .choice-list small { display: block; }
.choice-grid small, .choice-list small { color: #687688; font-size: .76rem; }
.choice-grid input:checked + span, .choice-list input:checked + span { color: var(--ink); background: var(--lime); border-color: var(--ink); box-shadow: 4px 4px 0 var(--ink); transform: translate(-2px, -2px); }
.choice-grid input:checked + span small, .choice-list input:checked + span small { color: var(--ink); }
.choice-grid input:focus-visible + span, .choice-list input:focus-visible + span, textarea:focus-visible, button:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid var(--coral); outline-offset: 3px; }
.choice-list { display: grid; gap: .65rem; }
.choice-list label > span { padding: .9rem 1rem; }
textarea { width: 100%; resize: vertical; min-height: 105px; padding: .85rem 1rem; border: 1px solid var(--line); color: var(--ink); background: #fbfcfa; }
.counter { margin: .3rem 0 0; text-align: right; color: #687688; font-size: .72rem; }
.local-note { display: flex; gap: .8rem; align-items: flex-start; margin-top: 1.6rem; padding: 1rem; background: var(--mint); }
.local-note > span { color: #25825d; }
.local-note p { margin: 0; font-size: .78rem; line-height: 1.6; }
.form-error { min-height: 1.6rem; margin: .6rem 0 0; color: #a42f22; font-size: .78rem; font-weight: 700; }
.submit-button { width: 100%; min-height: 62px; display: flex; justify-content: space-between; align-items: center; padding: .8rem 1.2rem; border: 0; color: var(--white); background: var(--ink); cursor: pointer; font-weight: 900; box-shadow: 6px 6px 0 var(--coral); }
.submit-button:hover { background: var(--ink-soft); }
.result { min-height: 650px; text-align: center; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.result[hidden] { display: none; }
.result-kicker { color: var(--coral); font-size: .7rem; font-weight: 900; letter-spacing: .2em; }
.result-check { width: 88px; height: 88px; display: grid; place-items: center; margin: 1.5rem auto; color: var(--ink); background: var(--lime); border: 3px solid var(--ink); border-radius: 50%; box-shadow: 7px 7px 0 var(--ink); font-size: 2.6rem; font-weight: 900; }
.result h3 { margin: .5rem 0; font-family: var(--font-serif); font-size: clamp(2.3rem, 4vw, 3.5rem); }
.result > p:not(.result-kicker, .result-privacy) { max-width: 35rem; }
.result-tip { width: 100%; margin: 1.7rem 0 1rem; padding: 1.3rem; text-align: left; background: var(--mint); border-left: 6px solid var(--mint-deep); }
.result-tip small, .result-tip strong { display: block; }
.result-tip small { color: #4a6b5f; font-size: .7rem; font-weight: 900; letter-spacing: .12em; }
.result-tip strong { margin-top: .45rem; }
.result-privacy { color: #687688; font-size: .76rem; }
.reset-button { border: 0; border-bottom: 1px solid currentColor; color: var(--ink); background: transparent; cursor: pointer; font-weight: 800; }
.faq { display: grid; grid-template-columns: .65fr 1.35fr; gap: clamp(3rem, 8vw, 8rem); background: var(--paper); }
.faq-list { border-top: 1px solid var(--ink); }
details { border-bottom: 1px solid var(--ink); }
summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; gap: 1rem; padding: 1.35rem 0; font-weight: 800; }
summary::-webkit-details-marker { display: none; }
summary span { font-size: 1.4rem; transition: transform .2s ease; }
details[open] summary span { transform: rotate(45deg); }
details p { margin: 0; padding: 0 3rem 1.5rem 0; color: #536275; }
.site-footer { min-height: 170px; display: grid; grid-template-columns: 1fr auto 1fr; gap: 1rem; align-items: center; padding: 2rem clamp(1.4rem, 6vw, 7rem); color: var(--white); background: #0b1627; }
.footer-brand { color: var(--white); }
.site-footer p { margin: 0; font-size: .7rem; letter-spacing: .1em; }
.site-footer p:last-child { justify-self: end; }
@media (max-width: 1000px) {
  .hero { grid-template-columns: 1fr; } .hero-copy { min-height: 620px; } .hero-art { min-height: 560px; }
  .purpose, .survey, .faq { grid-template-columns: 1fr; } .survey-copy { position: static; } .safety-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 700px) {
  body { font-size: 15px; } .site-header { grid-template-columns: 1fr auto; } .header-note { display: none; }
  .hero-copy { min-height: 570px; } .hero-art { min-height: 470px; } .window { left: 8%; width: 58%; }
  .plant { right: 0; transform: scale(.8); transform-origin: bottom right; } .notebook { left: 8%; width: 205px; }
  .mug { right: 15%; transform: scale(.82); } .art-caption { top: 57%; } .facts { grid-template-columns: 1fr 1fr; }
  .facts div { border-bottom: 1px solid rgba(255, 255, 255, .25); } .facts div:nth-child(2) { border-right: 0; }
  .purpose-grid { grid-template-columns: 1fr; } .purpose-grid article { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .purpose-grid article:last-child { border-bottom: 0; } .purpose-grid h3 { margin-top: 1rem; } .safety-heading { display: block; }
  .safety-grid { grid-template-columns: 1fr; } .safety-grid article { min-height: auto; } .safety-grid h3 { margin-top: 1.3rem; }
  .choice-grid { grid-template-columns: 1fr; } .form-heading { align-items: flex-start; flex-direction: column; }
  .site-footer { grid-template-columns: 1fr; text-align: left; } .site-footer p:last-child { justify-self: start; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; } }