/* 吉田国際特許事務所 — 共通スタイル（外部フォント・外部スクリプトなし） */

:root {
  color-scheme: light;
  --ink: #1d2433;
  --ink-soft: #4a5263;
  --navy: #1b2a4a;
  --navy-deep: #131e36;
  --gold: #a08552;
  --line: #dcdfe5;
  --paper: #ffffff;
  --paper-tint: #f5f6f8;
  --serif: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", "Noto Serif JP", serif;
  --sans: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP", "Meiryo", sans-serif;
  --en-serif: "Georgia", "Times New Roman", serif;
  --max: 1040px;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: 0.02em;
  font-feature-settings: "palt";
}

body.en {
  font-family: "Helvetica Neue", Arial, sans-serif;
  letter-spacing: 0;
  line-height: 1.75;
  font-feature-settings: normal;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--navy); text-underline-offset: 3px; }
a:hover { color: var(--gold); }

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 16px;
  top: 16px;
  background: var(--paper);
  padding: 8px 12px;
  z-index: 10;
}

/* ---------- header ---------- */

.site-header {
  border-top: 4px solid var(--navy);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 84px;
}

.brand {
  text-decoration: none;
  color: var(--navy);
  display: block;
  line-height: 1.3;
}
.brand:hover { color: var(--navy); }

.brand-ja {
  display: block;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.12em;
}

.brand-en {
  display: block;
  font-family: var(--en-serif);
  font-size: 10.5px;
  letter-spacing: 0.22em;
  color: var(--gold);
  margin-top: 4px;
}

body.en .brand-en-main {
  display: block;
  font-family: var(--en-serif);
  font-size: 20px;
  letter-spacing: 0.04em;
}

.nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 28px;
}

.nav a {
  text-decoration: none;
  color: var(--ink);
  font-size: 14.5px;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}
.nav a:hover { color: var(--navy); border-bottom-color: var(--gold); }
.nav a[aria-current="page"] { color: var(--navy); border-bottom-color: var(--navy); }

.nav .lang a {
  font-family: var(--en-serif);
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

/* ---------- page heading ---------- */

.hero {
  background: var(--navy);
  color: #fff;
  padding: 88px 0 80px;
}

.hero-kicker {
  font-family: var(--en-serif);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: #cbb68c;
  margin: 0 0 18px;
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(26px, 4.2vw, 38px);
  line-height: 1.6;
  letter-spacing: 0.1em;
  margin: 0;
}

body.en .hero h1 {
  font-family: var(--en-serif);
  letter-spacing: 0.01em;
}

.hero p.lede {
  margin: 28px 0 0;
  max-width: 40em;
  color: #dfe3ec;
  font-size: 15.5px;
}

.page-head {
  background: var(--paper-tint);
  border-bottom: 1px solid var(--line);
  padding: 52px 0 44px;
}

.page-head .en-label {
  font-family: var(--en-serif);
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--gold);
  margin: 0 0 8px;
  text-transform: uppercase;
}

.page-head h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(24px, 3.4vw, 30px);
  letter-spacing: 0.14em;
  color: var(--navy);
  margin: 0;
}

/* ---------- sections ---------- */

main { display: block; }

.section { padding: 72px 0; }
.section + .section { border-top: 1px solid var(--line); }
.section.tint { background: var(--paper-tint); border-top: 0; }

.section-title {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 23px;
  letter-spacing: 0.12em;
  color: var(--navy);
  margin: 0 0 36px;
  padding-left: 18px;
  border-left: 3px solid var(--gold);
  line-height: 1.5;
}
.section-title small {
  display: block;
  font-family: var(--en-serif);
  font-size: 11.5px;
  letter-spacing: 0.24em;
  color: var(--ink-soft);
  font-weight: 400;
  margin-top: 2px;
}
body.en .section-title {
  font-family: var(--en-serif);
  letter-spacing: 0.02em;
}

h3 {
  font-family: var(--serif);
  font-weight: 600;
  color: var(--navy);
  font-size: 18.5px;
  letter-spacing: 0.08em;
  margin: 0 0 12px;
}
body.en h3 { font-family: var(--en-serif); letter-spacing: 0.01em; }

p { margin: 0 0 1em; }

/* ---------- home: service grid ---------- */

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.card {
  background: var(--paper);
  padding: 30px 28px 28px;
  text-decoration: none;
  color: var(--ink);
  display: block;
}
a.card:hover { background: var(--paper-tint); color: var(--ink); }
a.card:hover h3 { color: var(--gold); }
.card h3 { font-size: 17px; margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--ink-soft); margin: 0; line-height: 1.8; }

.more {
  display: inline-block;
  margin-top: 28px;
  font-size: 14.5px;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

/* ---------- definition table (概要・連絡先) ---------- */

.facts {
  width: 100%;
  border-collapse: collapse;
  border-top: 1px solid var(--line);
}
.facts th,
.facts td {
  text-align: left;
  vertical-align: top;
  padding: 16px 8px;
  border-bottom: 1px solid var(--line);
  font-weight: 400;
}
.facts th {
  width: 9em;
  color: var(--navy);
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.facts a[href^="tel:"],
.site-footer a[href^="tel:"] { color: inherit; text-decoration: none; }
body.en .facts th { font-family: var(--en-serif); letter-spacing: 0; width: 10em; }

/* ---------- profile ---------- */

.person {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 44px;
  align-items: start;
}
.person + .person {
  margin-top: 64px;
  padding-top: 64px;
  border-top: 1px solid var(--line);
}

.person figure { margin: 0; }
.person img {
  width: 200px;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center top;
  background: var(--paper-tint);
}

.person .role {
  font-size: 13.5px;
  color: var(--gold);
  letter-spacing: 0.12em;
  margin: 0 0 4px;
}
.person .name {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 26px;
  letter-spacing: 0.2em;
  color: var(--navy);
  margin: 0 0 4px;
  line-height: 1.5;
}
body.en .person .name { font-family: var(--en-serif); letter-spacing: 0.02em; }
.person .name-en {
  font-family: var(--en-serif);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  margin: 0 0 24px;
}

.history {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.history li {
  display: grid;
  grid-template-columns: 11.5em 1fr;
  gap: 16px;
  padding: 10px 4px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.7;
}
.history .y {
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
body.en .history li { grid-template-columns: 8em 1fr; }

/* ---------- services ---------- */

.svc {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px 56px;
  align-items: start;
}
.svc + .svc {
  margin-top: 0;
}
.svc-block { scroll-margin-top: 24px; }
.svc-block > p { color: var(--ink-soft); font-size: 15px; }

.tags {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tags li {
  font-size: 13.5px;
  border: 1px solid var(--line);
  padding: 3px 12px;
  background: var(--paper);
  line-height: 1.7;
}

.sub {
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
  margin: 18px 0 0;
  letter-spacing: 0.1em;
}

.countries {
  font-size: 14.5px;
  color: var(--ink-soft);
  margin-top: 12px;
}

.toc {
  list-style: none;
  margin: 0 0 8px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
}
.toc a {
  display: inline-block;
  font-size: 14px;
  text-decoration: none;
  border: 1px solid var(--line);
  padding: 6px 16px;
  color: var(--navy);
  background: var(--paper);
}
.toc a:hover { border-color: var(--navy); color: var(--navy); }

/* ---------- access ---------- */

.access {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
}

.route {
  list-style: none;
  margin: 0;
  padding: 0;
}
.route li {
  padding: 12px 0 12px 22px;
  border-bottom: 1px solid var(--line);
  position: relative;
  font-size: 15px;
}
.route li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 1.25em;
  width: 8px;
  height: 8px;
  background: var(--gold);
}
.route li:first-child { border-top: 1px solid var(--line); }

.btn {
  display: inline-block;
  margin-top: 24px;
  padding: 12px 26px;
  background: var(--navy);
  color: #fff;
  text-decoration: none;
  font-size: 14.5px;
  letter-spacing: 0.06em;
}
.btn:hover { background: var(--navy-deep); color: #fff; }
.btn .ext { font-size: 12px; opacity: 0.8; margin-left: 6px; }

.map { margin: 0; }
.map > a { display: block; border: 1px solid var(--line); }
.map > a:hover { border-color: var(--navy); }
.map img { width: 100%; height: auto; }
.map figcaption {
  margin-top: 6px;
  font-size: 11.5px;
  color: var(--ink-soft);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.maps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 40px;
}
.maps h3 { font-size: 16px; }

.note { font-size: 13.5px; color: var(--ink-soft); }
.after-table { margin-top: 16px; }

.email-img {
  display: block;
  width: 184px;
  height: auto;
  margin-top: 4px;
}

/* ---------- privacy ---------- */

.prose { max-width: 46em; }
.prose h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 17.5px;
  color: var(--navy);
  margin: 40px 0 10px;
  letter-spacing: 0.06em;
}
.prose p { font-size: 15px; }
.prose .sign { margin-top: 40px; text-align: right; line-height: 1.8; }

/* ---------- footer ---------- */

.site-footer {
  background: var(--navy-deep);
  color: #c9cfdb;
  font-size: 13.5px;
  padding: 56px 0 28px;
  margin-top: 0;
}
.site-footer a { color: #e6e9ef; }
.site-footer a:hover { color: #cbb68c; }

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.footer-name {
  font-family: var(--serif);
  font-size: 18px;
  letter-spacing: 0.12em;
  color: #fff;
  margin: 0 0 12px;
}
body.en .footer-name { font-family: var(--en-serif); letter-spacing: 0.02em; }
.site-footer address { font-style: normal; line-height: 1.9; }

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}
.footer-links a { text-decoration: none; }

.copyright {
  margin: 44px 0 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-family: var(--en-serif);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #8f98ab;
}

/* ---------- responsive ---------- */

@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr 1fr; }
  .svc { grid-template-columns: 1fr; }
  .access { grid-template-columns: 1fr; gap: 40px; }
  .maps { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  .site-header .wrap {
    flex-direction: column;
    align-items: flex-start;
    padding-top: 16px;
    padding-bottom: 8px;
    gap: 10px;
  }
  .brand-ja { font-size: 20px; }
  .nav ul { gap: 0 20px; }
  .nav a { font-size: 14px; }
  .hero { padding: 56px 0 52px; }
  body.en .hero h1 br { display: none; }
  .section { padding: 52px 0; }
  .grid { grid-template-columns: 1fr; }
  .person { grid-template-columns: 1fr; gap: 20px; }
  .person img { width: 160px; }
  .history li { grid-template-columns: 1fr; gap: 0; }
  body.en .history li { grid-template-columns: 1fr; }
  .facts th, .facts td { display: block; width: auto; padding: 4px 0; border: 0; }
  .facts th { padding-top: 14px; }
  .facts td { padding-bottom: 14px; border-bottom: 1px solid var(--line); }
}

@media print {
  .site-header .nav, .skip { display: none; }
  .hero, .site-footer { background: none; color: var(--ink); }
}