@font-face {
  font-family: "Sukedachi Sans";
  src: url("fonts/sans-regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Sukedachi Sans";
  src: url("fonts/sans-bold.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}

:root {
  color-scheme: light;
  --paper: #ffffff;
  --tint: #f3f7f4;
  --card: #ffffff;
  --ink: #1d2420;
  --ink-soft: #3f4943;
  --muted: #66706a;
  --line: #dce3de;
  --green: #1e7a4c;
  --green-dark: #165c39;
  --body: "Sukedachi Sans", "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI", Meiryo, sans-serif;
  --heading: var(--body);
  --gutter: clamp(20px, 5vw, 48px);
}

* { box-sizing: border-box; }
html { scroll-padding-top: 88px; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1rem;
  line-height: 1.95;
  letter-spacing: .02em;
  overflow-wrap: break-word;
  font-feature-settings: "palt" 0;
}
h1, h2, h3, p, ol, ul, dl, dd { margin: 0; }
ol, ul { padding: 0; list-style: none; }
h1, h2 { font-family: var(--heading); font-weight: 700; letter-spacing: .04em; }
h1, h2, h3, summary, .case-tag { word-break: auto-phrase; }
p, li, dd { text-wrap: pretty; }
h3 { font-size: 1.0625rem; font-weight: 700; line-height: 1.7; }
a { color: var(--green-dark); text-underline-offset: .28em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
button { font: inherit; cursor: pointer; }
img { max-width: 100%; }
:focus-visible { outline: 2px solid var(--green); outline-offset: 4px; }
[hidden] { display: none !important; }

.wrap { width: 100%; max-width: calc(1080px + var(--gutter) * 2); margin-inline: auto; padding-inline: var(--gutter); }
.skip-link { position: absolute; top: -100px; left: 20px; padding: 8px 16px; background: var(--card); z-index: 30; }
.skip-link:focus { top: 8px; }

/* header */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px 32px; min-height: 72px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.brand img { display: block; width: 20px; height: 50px; }
.brand-name { display: flex; flex-direction: column; font-family: var(--heading); font-weight: 700; font-size: 1.375rem; line-height: 1.1; letter-spacing: .14em; }
.brand-kana { font-family: var(--body); font-weight: 400; font-size: .6875rem; letter-spacing: .3em; color: var(--muted); margin-top: 4px; }
.site-header nav { display: flex; align-items: center; flex-wrap: wrap; gap: 6px 28px; font-size: .875rem; }
.site-header nav a { color: var(--ink-soft); text-decoration: none; padding-block: 4px; }
.site-header nav a:hover { color: var(--green-dark); }
.site-header nav .nav-contact { color: var(--card); background: var(--green); padding: 6px 16px; border-radius: 2px; }
.site-header nav .nav-contact:hover { background: var(--green-dark); color: var(--card); }

/* hero */
.hero { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 56px; align-items: center; padding-block: 88px 96px; }
.hero-label { display: inline-block; font-size: .8125rem; color: var(--ink-soft); border-bottom: 1px solid var(--green); padding-bottom: 2px; margin-bottom: 28px; letter-spacing: .08em; }
h1 { font-size: clamp(2.25rem, 4.6vw, 3.5rem); line-height: 1.45; letter-spacing: .04em; margin-bottom: 32px; }
.hero-lead { max-width: 34em; color: var(--ink-soft); }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; margin-top: 36px; }

.button {
  display: inline-flex; align-items: center; justify-content: center; gap: .6em;
  min-height: 52px; padding: 10px 30px;
  background: var(--green); color: var(--card);
  font-size: .9375rem; font-weight: 700; letter-spacing: .1em; text-decoration: none;
  border-radius: 2px;
  transition: background-color .15s;
}
.button::after { content: "→"; font-weight: 400; }
.button:hover { background: var(--green-dark); }
.text-link { font-size: .9375rem; color: var(--ink); }

/* dictionary entry */
.dictionary {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 36px 32px 28px;
}
.dict-head { display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 6px; margin-bottom: 16px; }
.dict-word { font-family: var(--heading); font-weight: 700; font-size: 1.5rem; letter-spacing: .04em; }
.dict-kanji { font-family: var(--heading); font-size: 1.125rem; color: var(--ink-soft); }
.dict-senses { counter-reset: sense; font-size: .9375rem; line-height: 1.9; color: var(--ink-soft); }
.dict-senses li { counter-increment: sense; position: relative; padding-left: 1.9em; }
.dict-senses li + li { margin-top: 10px; }
.dict-senses li::before {
  content: counter(sense); position: absolute; left: 0; top: .32em;
  width: 1.3em; height: 1.3em; border: 1px solid var(--ink-soft); border-radius: 50%;
  font-size: .75rem; line-height: 1.2em; text-align: center;
}
.dict-note { margin-top: 20px; padding-top: 14px; border-top: 1px dashed var(--line); font-size: .8125rem; color: var(--muted); }

/* sections */
.section { padding-block: 88px; border-top: 1px solid var(--line); }
.section-tint { background: var(--tint); }
.section h2 { font-size: clamp(1.625rem, 2.8vw, 2.125rem); line-height: 1.5; margin-bottom: 18px; }
.section-lead { max-width: 40em; color: var(--ink-soft); margin-bottom: 40px; }

/* cases */
.cases { border-top: 1px solid var(--line); }
.case { display: grid; grid-template-columns: 11em minmax(0, 1fr) minmax(0, 1fr); gap: 8px 40px; padding-block: 28px; border-bottom: 1px solid var(--line); }
.case-tag { font-family: var(--heading); font-weight: 700; font-size: 1.1875rem; letter-spacing: .04em; line-height: 1.6; }
.case-label { display: block; font-size: .75rem; font-weight: 700; letter-spacing: .12em; margin-bottom: 4px; }
.case-before .case-label { color: var(--muted); }
.case-before p { color: var(--ink-soft); font-size: .9375rem; }
.case-after .case-label { color: var(--green-dark); }
.case-after p { font-size: .9375rem; }
.cases-more { margin-top: 28px; font-size: .875rem; color: var(--muted); }

/* steps */
.steps { display: grid; gap: 0; max-width: 820px; margin-bottom: 48px; }
.steps li { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 20px; padding-block: 24px; border-bottom: 1px solid var(--line); }
.steps li:first-child { border-top: 1px solid var(--line); }
.step-num {
  display: grid; place-items: center; width: 52px; height: 52px;
  border: 1px solid var(--green);
  font-family: var(--heading); font-weight: 700; font-size: 1.5rem; line-height: 1;
  color: var(--green); margin-top: 6px;
}
.steps h3 { margin-bottom: 6px; }
.steps p { color: var(--ink-soft); font-size: .9375rem; }

.pricing { max-width: 820px; background: var(--card); border: 1px solid var(--line); padding: 28px 32px; }
.pricing h3 { font-family: var(--heading); font-size: 1.25rem; font-weight: 700; letter-spacing: .04em; margin-bottom: 12px; }
.pricing p { font-size: .9375rem; color: var(--ink-soft); }
.pricing p + p { margin-top: 12px; }

/* about */
.about-body { max-width: 40em; }
.about-body p + p { margin-top: 16px; }
.business-info { margin-top: 40px; max-width: 720px; font-size: .9375rem; border-top: 2px solid var(--ink); }
.business-info > div { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 20px; padding-block: 14px; border-bottom: 1px solid var(--line); }
.business-info dt { color: var(--muted); font-size: .875rem; }

/* faq */
.faq-list { max-width: 820px; border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary {
  list-style: none; cursor: pointer; position: relative;
  padding: 20px 48px 20px 2.4em; font-weight: 700;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::before { content: "問"; position: absolute; left: 0; top: 20px; font-family: var(--heading); color: var(--green); font-weight: 700; }
.faq-list summary::after {
  content: ""; position: absolute; right: 12px; top: 50%;
  width: 9px; height: 9px; margin-top: -7px;
  border-right: 1.5px solid var(--ink-soft); border-bottom: 1.5px solid var(--ink-soft);
  transform: rotate(45deg); transition: transform .2s;
}
.faq-list details[open] summary::after { transform: rotate(-135deg); margin-top: -2px; }
.faq-list summary:hover { color: var(--green-dark); }
.faq-list details p { position: relative; padding: 0 48px 22px 2.4em; color: var(--ink-soft); font-size: .9375rem; }
.faq-list details p::before { content: "答"; position: absolute; left: 0; top: 0; font-family: var(--heading); color: var(--muted); font-weight: 700; }

/* contact */
.contact { background: var(--green-dark); color: #e6f0ea; padding-block: 88px; }
.contact-inner { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 56px; align-items: start; }
.contact h2 { color: #fff; font-size: clamp(1.75rem, 3vw, 2.25rem); line-height: 1.5; margin-bottom: 20px; }
.contact-text p + p { margin-top: 14px; }
.contact-caution { font-size: .875rem; color: #bcd3c5; }
.contact-options { border: 1px solid rgba(255, 255, 255, .25); padding: 32px; }
.contact .button { width: 100%; }
.button-light { background: #fff; color: var(--green-dark); }
.button-light:hover { background: var(--tint); }
.contact-email-row { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 14px; margin-top: 22px; }
.contact-email { color: #fff; font-size: 1.125rem; letter-spacing: .03em; overflow-wrap: anywhere; }
.copy-button { background: transparent; border: 1px solid rgba(255, 255, 255, .5); color: #e6f0ea; font-size: .75rem; padding: 2px 12px; border-radius: 2px; }
.copy-button:hover { border-color: #fff; color: #fff; }
.copy-status { color: #cfe0d6; font-size: .8125rem; }
.copy-status:not(:empty) { margin-top: 8px; }
.contact-small { color: #bcd3c5; font-size: .8125rem; line-height: 1.85; margin-top: 18px; }
.contact a:not(.button):not(.contact-email) { color: #fff; }
.contact :focus-visible { outline-color: #fff; }

/* footer */
.site-footer { border-top: 1px solid var(--line); color: var(--muted); font-size: .8125rem; }
.footer-inner { display: flex; align-items: center; flex-wrap: wrap; gap: 12px 32px; padding-block: 24px 32px; }
.footer-brand { display: inline-flex; align-items: center; gap: 8px; color: var(--ink); font-family: var(--heading); font-weight: 700; letter-spacing: .14em; font-size: .9375rem; }
.footer-brand img { width: 12px; height: 30px; }
.site-footer a { color: var(--ink-soft); }
.site-footer small { margin-left: auto; font-size: .75rem; }

/* sub pages */
.legal { max-width: calc(800px + var(--gutter) * 2); padding-block: 56px 88px; }
.legal h1 { font-size: clamp(1.75rem, 3.4vw, 2.25rem); margin-block: 20px 28px; }
.legal h2 { font-size: 1.375rem; margin-block: 40px 12px; padding-left: 14px; border-left: 3px solid var(--green); line-height: 1.5; }
.legal p + p { margin-top: 14px; }
.legal .back-link { font-size: .875rem; }
.legal .revision { margin-top: 48px; color: var(--muted); font-size: .8125rem; }
.not-found { min-height: 60vh; }
.not-found .error-code { font-family: var(--heading); font-weight: 700; color: var(--green); font-size: 3rem; line-height: 1; letter-spacing: .1em; }
.not-found .button { margin-top: 32px; }

@media (max-width: 900px) {
  .hero { grid-template-columns: minmax(0, 1fr); gap: 48px; padding-block: 56px 64px; }
  .dictionary { max-width: 520px; }
  .case { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .case-tag { grid-column: 1 / -1; }
  .contact-inner { grid-template-columns: minmax(0, 1fr); gap: 32px; }
}
@media (max-width: 720px) {
  html { scroll-padding-top: 120px; }
  .header-inner { min-height: 0; padding-block: 12px; }
  .brand img { width: 16px; height: 40px; }
  .brand-name { font-size: 1.1875rem; }
  .site-header nav { gap: 4px 16px; font-size: .8125rem; width: 100%; }
  .site-header nav .nav-contact { margin-left: auto; padding: 4px 12px; }
  h1 { font-size: clamp(1.875rem, 8.4vw, 2.5rem); letter-spacing: .03em; }
  .dictionary { padding: 28px 22px 22px; }
  .section { padding-block: 60px; }
  .section-lead { margin-bottom: 28px; }
  .case { grid-template-columns: minmax(0, 1fr); gap: 14px; padding-block: 24px; }
  .steps li { grid-template-columns: 40px minmax(0, 1fr); gap: 14px; }
  .step-num { width: 36px; height: 36px; font-size: 1.125rem; }
  .pricing { padding: 22px 20px; }
  .business-info > div { grid-template-columns: 84px minmax(0, 1fr); gap: 14px; }
  .faq-list summary { padding-right: 36px; }
  .faq-list details p { padding-right: 0; }
  .contact { padding-block: 60px; }
  .contact-options { padding: 22px 20px; }
  .contact-email { font-size: 1rem; }
  .site-footer small { width: 100%; margin-left: 0; }
}
@media print {
  body { background: #fff; }
  .site-header { position: static; }
  .site-header nav, .copy-button, .skip-link, .hero-actions { display: none; }
  .contact { background: #fff; color: var(--ink); }
  .contact h2, .contact-email { color: var(--ink); }
  .section { padding-block: 24px; }
  details { break-inside: avoid; }
}