/* =========================================================
   Kernelsmith — Editorial (japanese-lp grammar)
   抑制(editorial/clean) / ニュートラル90%+アクセント1色(ブリック)
   罫線主導・余白広め・左寄せ非対称・大番号・欧文ラベル
   ========================================================= */

:root {
  /* Base — ニュートラル(業種で変えない) */
  --color-ink: #1a1a1a;
  --color-ink-light: #55514c;
  --color-ink-muted: #8a857d;
  --color-paper: #fdfcf9;
  --color-paper-off: #f4f1ea;     /* オフホワイト(温かい) */
  --color-line: #e4e0d7;          /* hairline */
  --color-line-strong: #cbc5b8;

  /* Accent — 低彩度ブリック1色 */
  --color-accent: #a8492f;
  --color-error: #c0392b;

  /* Fonts */
  --font-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --font-serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-en: "Inter", "Helvetica Neue", var(--font-sans);

  /* Type scale */
  --fs-body: clamp(15px, 0.6vw + 12px, 18px);
  --fs-sm:   clamp(13px, 0.4vw + 11px, 15px);
  --fs-lead: clamp(16px, 0.8vw + 13px, 22px);
  --fs-h4:   clamp(18px, 1vw  + 14px, 22px);
  --fs-h3:   clamp(21px, 1.6vw + 15px, 28px);
  --fs-h2:   clamp(27px, 3.5vw + 12px, 44px);
  --fs-h1:   clamp(33px, 6vw  + 10px, 72px);
  --fs-stat: clamp(40px, 7vw  +  6px, 96px);
  --line-height: 1.9;

  /* Spacing / shape */
  --section-py: clamp(80px, 12vw, 150px);
  --container: 1120px;
  --container-text: 720px;
  --radius: 3px;
  --transition: 0.4s cubic-bezier(0.2, 0.6, 0.2, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-paper);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--line-height);
  letter-spacing: 0.04em;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 700; }
a { color: inherit; text-decoration: none; transition: color var(--transition), opacity var(--transition); }
img { display: block; max-width: 100%; }
code {
  font-family: var(--font-en), monospace;
  font-size: 0.88em;
  background: var(--color-paper-off);
  border: 1px solid var(--color-line);
  border-radius: 3px;
  padding: 0.1em 0.4em;
}
::selection { background: color-mix(in srgb, var(--color-accent) 16%, transparent); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.shell { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-text { max-width: var(--container-text); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: color-mix(in srgb, var(--color-paper) 88%, transparent);
  border-bottom: 1px solid var(--color-line);
  backdrop-filter: blur(10px);
}
.site-header__inner {
  max-width: var(--container); margin: 0 auto;
  padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  min-height: 72px;
}
.site-logo { display: inline-flex; align-items: center; }
.site-logo img { height: 26px; width: auto; display: block; }
.site-menu-button {
  display: none;
  border: 1px solid var(--color-line-strong); background: transparent;
  border-radius: var(--radius); padding: 9px 16px;
  font-family: var(--font-en); font-size: 0.78rem; letter-spacing: 0.12em;
  cursor: pointer; color: var(--color-ink);
}
.site-nav ul, .site-footer ul, .breadcrumbs ol,
.meta-list, .chip-list, .link-list, .news-list { list-style: none; margin: 0; padding: 0; }
.site-nav ul { display: flex; gap: 4px; }
.site-nav a {
  display: inline-flex; align-items: center; position: relative;
  min-height: 36px; padding: 0 14px;
  color: var(--color-ink-light); font-size: 0.92rem; font-weight: 500;
}
.site-nav a:hover { color: var(--color-ink); }
.site-nav a.is-active { color: var(--color-accent); }
.site-nav a.is-active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 0;
  height: 2px; background: var(--color-accent);
}

/* ---------- Shared: section header / labels ---------- */
.section { padding: var(--section-py) 0; }
.section--tight-top { padding-top: clamp(24px, 4vw, 48px); }
.section--ruled + .section--ruled { border-top: 1px solid var(--color-line); }
.section-off { background: var(--color-paper-off); }

.section-label {
  font-family: var(--font-en);
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.22em;
  color: var(--color-ink-muted); text-transform: uppercase;
  margin: 0 0 16px;
}
.section-header { max-width: var(--container-text); margin-bottom: clamp(40px, 6vw, 72px); }
.section-header--split {
  max-width: none; display: flex; align-items: flex-end; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.section-header--split > div { max-width: var(--container-text); }
.section-title { font-size: var(--fs-h2); font-weight: 700; line-height: 1.35; margin: 0; letter-spacing: 0.02em; }
.section-desc { font-size: var(--fs-body); line-height: 1.9; color: var(--color-ink-light); margin: 16px 0 0; }

/* render_section() の見出し(内側ページ) */
.section-head { max-width: var(--container-text); margin-bottom: clamp(36px, 5vw, 56px); }
.section-head--split { max-width: none; display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.section-head--split > div { max-width: var(--container-text); }
.section-head h2 { font-size: var(--fs-h2); font-weight: 700; line-height: 1.35; margin: 0; letter-spacing: 0.02em; }
.section-head p { font-size: var(--fs-body); line-height: 1.9; color: var(--color-ink-light); margin: 16px 0 0; }

/* ---------- CTA buttons ---------- */
.cta-button, .button {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 17px 38px;
  background: var(--color-accent); color: #fff;
  font-family: var(--font-sans); font-size: var(--fs-body); font-weight: 700;
  letter-spacing: 0.04em;
  border: 1px solid var(--color-accent); border-radius: var(--radius);
  cursor: pointer;
}
.cta-button:hover, .button:hover { opacity: 0.88; }

.cta-text {
  font-weight: 700; color: var(--color-ink);
  border-bottom: 1px solid var(--color-ink); padding-bottom: 3px;
}
.cta-text::after { content: " \2192"; }
.cta-text:hover { color: var(--color-accent); border-color: var(--color-accent); }

.cta-outline, .button-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 16px 32px;
  border: 1px solid var(--color-ink); border-radius: var(--radius);
  background: transparent; color: var(--color-ink);
  font-family: var(--font-sans); font-size: var(--fs-body); font-weight: 600;
  cursor: pointer;
}
.cta-outline:hover, .button-secondary:hover { background: var(--color-ink); color: #fff; }
.button-row { display: flex; flex-wrap: wrap; gap: 16px; }

/* ---------- Home hero (copy-led) ---------- */
section.hero { padding: clamp(72px, 12vw, 150px) 0 var(--section-py); }
.hero__inner { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.hero__label {
  font-family: var(--font-en); font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.24em; color: var(--color-ink-muted); margin: 0 0 26px;
}
.hero__title {
  font-size: var(--fs-h1); font-weight: 700; line-height: 1.22;
  letter-spacing: 0.02em; margin: 0; max-width: 18em;
}
.hero__lead {
  font-size: var(--fs-lead); line-height: 1.95; color: var(--color-ink-light);
  margin: 32px 0 0; max-width: 40em;
}
.hero__actions { display: flex; align-items: center; gap: 32px; flex-wrap: wrap; margin-top: 44px; }
.hero__facts {
  display: flex; flex-wrap: wrap; gap: 0;
  margin: clamp(56px, 8vw, 88px) 0 0; padding: 0;
  border-top: 1px solid var(--color-line);
}
.hero__facts > div {
  flex: 1; min-width: 150px;
  padding: 28px 32px 28px 0;
  border-right: 1px solid var(--color-line);
}
.hero__facts > div:last-child { border-right: 0; }
.hero__facts dt {
  font-size: var(--fs-sm); color: var(--color-ink-muted); letter-spacing: 0.06em;
  margin-bottom: 10px;
}
.hero__facts dd {
  margin: 0; font-family: var(--font-en); font-size: var(--fs-stat);
  font-weight: 700; line-height: 1; color: var(--color-ink);
  font-feature-settings: "tnum";
}
.hero__facts dd span { font-size: 0.32em; color: var(--color-ink-muted); margin-left: 4px; letter-spacing: 0; }
.hero__facts dd.hero__facts-text { font-family: var(--font-serif); font-size: clamp(1.6rem, 3vw, 2.4rem); }
.hero__facts dd.hero__facts-text span { font-size: 0.6em; }

/* ---------- Home hero: 全面背景画像版 (media overlay) ---------- */
section.hero--media {
  position: relative; isolation: isolate; color: #fff; overflow: hidden;
  background: #0c1424 url("../img/hero.jpg") center 30%/cover no-repeat;
  padding: clamp(132px, 22vh, 240px) 0 clamp(72px, 12vh, 132px);
}
.hero--media::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(90deg, rgba(8,12,22,0.86) 0%, rgba(8,12,22,0.58) 46%, rgba(8,12,22,0.22) 100%),
    linear-gradient(0deg, rgba(8,12,22,0.55) 0%, rgba(8,12,22,0) 40%);
}
.hero--media .hero__label { color: rgba(255,255,255,0.72); }
.hero--media .hero__title { color: #fff; }
.hero--media .hero__lead { color: rgba(255,255,255,0.86); }
.hero--media .cta-text { color: #fff; border-bottom-color: rgba(255,255,255,0.7); }
.hero--media .cta-text:hover { color: #fff; opacity: 0.82; border-color: #fff; }
.hero--media .hero__facts { border-top-color: rgba(255,255,255,0.25); }
.hero--media .hero__facts > div { border-right-color: rgba(255,255,255,0.18); }
.hero--media .hero__facts dt { color: rgba(255,255,255,0.62); }
.hero--media .hero__facts dd { color: #fff; }
.hero--media .hero__facts dd span { color: rgba(255,255,255,0.6); }

/* ---------- Concept (watermark / 強調) ---------- */
.concept { padding: clamp(96px, 14vw, 170px) 0; }
.concept__inner { position: relative; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.concept__title {
  position: relative; font-size: var(--fs-h1); font-weight: 700;
  line-height: 1.4; letter-spacing: 0.02em; margin: 0; z-index: 1;
}
.concept__title::before {
  content: attr(data-en);
  position: absolute; left: -0.04em; top: -0.62em; z-index: -1;
  font-family: var(--font-en); font-weight: 800;
  font-size: clamp(80px, 17vw, 220px); line-height: 1; letter-spacing: 0.02em;
  color: color-mix(in srgb, var(--color-ink) 6%, transparent);
  pointer-events: none; white-space: nowrap;
}
.concept__body {
  margin-top: 40px; max-width: 44em;
  border-left: 2px solid var(--color-line-strong); padding-left: clamp(20px, 3vw, 32px);
  display: grid; gap: 1.5em;
}
.concept__body p { margin: 0; font-size: var(--fs-lead); line-height: 1.95; color: var(--color-ink-light); }
.concept__cta { margin-top: 12px; }
.concept__cta .cta-text { font-size: var(--fs-body); }

/* ---------- Services (大番号の誌面行) ---------- */
.feature-rows { margin-top: 8px; }
.feature {
  display: grid; grid-template-columns: 88px 1fr auto; gap: 32px; align-items: center;
  padding: 40px 0; border-top: 1px solid var(--color-line);
  color: var(--color-ink);
}
.feature:last-child { border-bottom: 1px solid var(--color-line); }
.feature-no {
  font-family: var(--font-en); font-size: var(--fs-h2); font-weight: 700;
  line-height: 1; color: var(--color-ink-muted);
}
.feature-body h3 { font-size: var(--fs-h3); font-weight: 700; margin: 0 0 10px; }
.feature-body p { font-size: var(--fs-body); line-height: 1.9; color: var(--color-ink-light); margin: 0; max-width: 52ch; }
.feature-arrow {
  font-family: var(--font-en); font-size: 1.4rem; color: var(--color-ink-muted);
  transition: transform var(--transition), color var(--transition);
}
.feature:hover .feature-no { color: var(--color-accent); }
.feature:hover .feature-arrow { color: var(--color-accent); transform: translateX(6px); }

/* ---------- Works grid (hairline) ---------- */
.work-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--color-line); border: 1px solid var(--color-line);
}
.work { background: var(--color-paper); display: flex; flex-direction: column; color: var(--color-ink); transition: background var(--transition); }
.work:hover { background: var(--color-paper-off); }
.work__thumb { display: block; aspect-ratio: 740 / 440; overflow: hidden; background: var(--color-paper-off); }
.work__thumb img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform var(--transition); }
.work:hover .work__thumb img { transform: scale(1.03); }
.work__body { padding: 28px 28px 32px; }
.work__cat {
  display: inline-block; font-family: var(--font-en); font-size: 0.72rem;
  letter-spacing: 0.1em; color: var(--color-accent); margin-bottom: 16px; font-weight: 600;
}
.work__title { font-size: var(--fs-h4); font-weight: 700; line-height: 1.5; margin: 0 0 12px; }
.work__desc { font-size: var(--fs-sm); line-height: 1.85; color: var(--color-ink-light); margin: 0; }

/* ---------- News list (罫線) ---------- */
.news-list { border-top: 1px solid var(--color-line); }
.news-row { border-bottom: 1px solid var(--color-line); }
.news-row a {
  display: grid; grid-template-columns: 140px 1fr; gap: 24px; align-items: baseline;
  padding: 24px 4px; color: var(--color-ink);
}
.news-row__date { font-family: var(--font-en); font-size: var(--fs-sm); color: var(--color-ink-muted); letter-spacing: 0.04em; }
.news-row__title { font-size: var(--fs-body); font-weight: 500; line-height: 1.7; }
.news-row a:hover .news-row__title { color: var(--color-accent); }

/* ---------- Blog (compact) ---------- */
.blog-note { max-width: 56em; font-size: var(--fs-body); line-height: 1.9; color: var(--color-ink-light); margin: 0 0 28px; }
.blog-links { display: flex; flex-wrap: wrap; gap: 14px; }
.blog-links .cta-outline { padding: 12px 24px; font-size: var(--fs-sm); }

/* ---------- Editorial cards (render_card_grid・件数が不揃いなので個別罫線) ---------- */
.cards { display: grid; gap: 16px; }
.cards.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cards.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cards.cols-4 { grid-template-columns: repeat(4, 1fr); }
.ed-card {
  display: flex; flex-direction: column; background: var(--color-paper);
  border: 1px solid var(--color-line); border-radius: var(--radius);
  padding: 36px 32px; color: var(--color-ink);
  transition: background var(--transition), border-color var(--transition);
}
.ed-card:hover { background: var(--color-paper-off); border-color: var(--color-line-strong); }
.ed-card--media { overflow: hidden; }
.ed-card__thumb { display: block; margin: -36px -32px 24px; aspect-ratio: 740 / 440; overflow: hidden; background: var(--color-paper-off); }
.ed-card__thumb img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform var(--transition); }
.ed-card--media:hover .ed-card__thumb img { transform: scale(1.03); }
.ed-card__cat {
  font-family: var(--font-en); font-size: 0.72rem; letter-spacing: 0.1em;
  color: var(--color-accent); font-weight: 600; margin-bottom: 16px;
}
.ed-card__title { font-size: var(--fs-h4); font-weight: 700; line-height: 1.5; margin: 0 0 12px; }
.ed-card__desc { font-size: var(--fs-sm); line-height: 1.85; color: var(--color-ink-light); margin: 0; }
.ed-card__more {
  margin-top: auto; padding-top: 24px;
  font-size: var(--fs-sm); font-weight: 700; color: var(--color-ink);
  display: inline-flex; align-items: center; gap: 6px;
}
.ed-card__more i { font-style: normal; font-family: var(--font-en); transition: transform var(--transition); }
.ed-card:hover .ed-card__more { color: var(--color-accent); }
.ed-card:hover .ed-card__more i { transform: translateX(5px); }

/* ---------- Inner page hero (render_hero) ---------- */
.page-hero { padding: clamp(64px, 9vw, 110px) 0 clamp(32px, 5vw, 56px); }
.page-hero__inner { max-width: var(--container); }
.page-hero__title { font-size: clamp(28px, 4vw + 12px, 54px); font-weight: 700; line-height: 1.3; letter-spacing: 0.02em; margin: 0; max-width: 20em; }
.page-hero__lead { font-size: var(--fs-lead); line-height: 1.9; color: var(--color-ink-light); margin: 24px 0 0; max-width: 42em; }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs { margin: 28px auto 0; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 8px; font-family: var(--font-en); font-size: 0.78rem; letter-spacing: 0.02em; }
.breadcrumbs li:not(:last-child)::after { content: "/"; margin-left: 8px; color: var(--color-ink-muted); }
.breadcrumbs a { color: var(--color-ink-muted); }
.breadcrumbs a:hover { color: var(--color-accent); }
.breadcrumbs span { color: var(--color-ink-light); }

/* ---------- Panels / article ---------- */
.panel, .note, .contact-panel {
  padding: clamp(28px, 4vw, 44px);
  border: 1px solid var(--color-line); border-radius: var(--radius);
  background: var(--color-paper);
}
.note { background: var(--color-paper-off); }
.note p { margin: 0 0 16px; }
.note p:last-child { margin-bottom: 0; }
.note .button-row { margin-top: 24px; }
.split-layout { display: grid; grid-template-columns: minmax(0, 2fr) minmax(300px, 1fr); gap: clamp(32px, 5vw, 64px); align-items: start; }
.work-hero { margin: 0 0 clamp(32px, 5vw, 56px); }
.work-hero img { width: 100%; border-radius: var(--radius); border: 1px solid var(--color-line); }
aside.panel h2 { font-family: var(--font-serif); font-size: var(--fs-h4); margin: 0 0 14px; }
aside.panel h2:not(:first-child) { margin-top: 28px; }
aside.panel p { font-size: var(--fs-sm); line-height: 1.85; color: var(--color-ink-light); margin: 0; }

.article-body { font-size: var(--fs-body); line-height: 2; max-width: var(--container-text); }
.article-body h1 { font-size: var(--fs-h2); margin: 0 0 28px; line-height: 1.4; }
.article-body h2 { font-size: var(--fs-h3); margin: 56px 0 20px; padding-bottom: 14px; border-bottom: 1px solid var(--color-line); line-height: 1.45; }
.article-body h3 { font-size: var(--fs-h4); margin: 36px 0 16px; }
.article-body p { margin: 0 0 1.5em; color: var(--color-ink-light); }
.article-body ul, .article-body ol { margin: 1.2em 0; padding-left: 1.4em; }
.article-body li { margin-bottom: 0.6em; color: var(--color-ink-light); }
.article-body a { color: var(--color-accent); font-weight: 500; text-decoration: underline; text-underline-offset: 0.2em; text-decoration-color: var(--color-line-strong); }
.article-body a:hover { text-decoration-color: var(--color-accent); }
.article-body img { border-radius: var(--radius); margin: 32px 0; }
.article-body strong { font-weight: 700; color: var(--color-ink); }

/* 会社概要などの2カラム表(live-content) を誌面風スペック表に */
.article-body .s_table { margin: 8px 0; }
.article-body .fix-2col-tbl { width: 100%; border-collapse: collapse; }
.article-body .fix-2col-tbl__tr { border-top: 1px solid var(--color-line); }
.article-body .fix-2col-tbl__tr:last-child { border-bottom: 1px solid var(--color-line); }
.article-body .fix-2col-tbl__th {
  text-align: left; vertical-align: top; width: 168px;
  padding: 18px 24px 18px 0; font-size: var(--fs-sm); font-weight: 600;
  color: var(--color-ink-muted); white-space: nowrap;
}
.article-body .fix-2col-tbl__td { vertical-align: top; padding: 18px 0; font-size: var(--fs-body); color: var(--color-ink-light); }
.article-body .fix-2col-tbl__td a { font-weight: 500; }
@media (max-width: 600px) {
  .article-body .fix-2col-tbl, .article-body .fix-2col-tbl tbody,
  .article-body .fix-2col-tbl__tr, .article-body .fix-2col-tbl__th, .article-body .fix-2col-tbl__td { display: block; width: auto; }
  .article-body .fix-2col-tbl__th { padding: 16px 0 4px; white-space: normal; }
  .article-body .fix-2col-tbl__td { padding: 0 0 16px; }
}

/* サービス詳細のカスタム hero(濃色面) */
.article-body--service { padding: 0; border: 0; background: transparent; max-width: none; }
.article-body--service .hero {
  border-radius: var(--radius); background: var(--color-ink); color: #fff;
  padding: clamp(40px, 6vw, 72px) clamp(28px, 4vw, 56px); margin-bottom: 48px;
}
.article-body--service .hero h1 { color: #fff; font-size: var(--fs-h2); margin: 0; }
.article-body--service .hero-sub { color: rgba(255,255,255,0.82); font-size: var(--fs-lead); margin-top: 20px; }

/* ---------- Lists ---------- */
.link-list { border-top: 1px solid var(--color-line); }
.link-list li { padding: 14px 0; border-bottom: 1px solid var(--color-line); font-size: var(--fs-sm); }
.link-list a { color: var(--color-accent); font-weight: 600; }
.link-list a:hover { opacity: 0.75; }
.meta-list { margin-bottom: 28px; }
.meta-list li { display: flex; justify-content: space-between; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--color-line); font-size: var(--fs-sm); }
.meta-list strong { color: var(--color-ink-muted); font-weight: 600; }
.meta-list span { color: var(--color-ink); text-align: right; word-break: break-all; }

/* ---------- Timeline (news index) ---------- */
.timeline { border-top: 1px solid var(--color-line); }
.timeline-item { padding: 32px 0; border-bottom: 1px solid var(--color-line); }
.timeline-item h3 { font-family: var(--font-serif); font-size: var(--fs-h4); margin: 14px 0 8px; }
.timeline-item h3 a:hover { color: var(--color-accent); }
.timeline-item p { margin: 0; color: var(--color-ink-light); font-size: var(--fs-sm); }

/* ---------- Pill / label ---------- */
.pill {
  display: inline-block; font-family: var(--font-en); font-size: 0.72rem;
  letter-spacing: 0.08em; padding: 4px 12px; margin-bottom: 20px;
  border: 1px solid var(--color-line-strong); border-radius: var(--radius); color: var(--color-ink-light);
}
.pill.pill-warm { border-color: var(--color-accent); color: var(--color-accent); }

/* ---------- Filters (chips) ---------- */
.archive-filter { margin-bottom: clamp(36px, 5vw, 56px); }
.chip-list { display: flex; flex-wrap: wrap; gap: 8px; }
.chip-list a {
  display: inline-flex; align-items: center; min-height: 40px; padding: 0 20px;
  border: 1px solid var(--color-line-strong); border-radius: var(--radius);
  font-size: var(--fs-sm); color: var(--color-ink-light);
}
.chip-list a:hover { border-color: var(--color-ink); color: var(--color-ink); }
.chip-list a.is-active { background: var(--color-ink); color: #fff; border-color: var(--color-ink); }

/* ---------- Contact form ---------- */
.contact-panel h2 { font-family: var(--font-serif); font-size: var(--fs-h3); margin: 0 0 14px; }
.contact-form { display: grid; gap: 22px; margin-top: 28px; }
.field { display: grid; gap: 8px; }
label { font-weight: 600; font-size: var(--fs-sm); }
input, textarea {
  width: 100%; padding: 14px 16px;
  border: 1px solid var(--color-line-strong); border-radius: var(--radius);
  background: var(--color-paper); font-family: inherit; font-size: var(--fs-body); color: var(--color-ink);
  transition: border-color var(--transition), box-shadow var(--transition);
}
input:focus, textarea:focus {
  outline: none; border-color: var(--color-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent) 12%, transparent);
}
textarea { min-height: 180px; resize: vertical; }
.help-text { font-size: var(--fs-sm); color: var(--color-ink-muted); margin: 0; }
.contact-panel h2:not(:first-of-type) { margin-top: 32px; }
aside.panel p a { color: var(--color-accent); font-weight: 500; }

/* フォーム: 必須・エラー・ローディング・ハニーポット */
.required { color: var(--color-accent); margin-left: 4px; }
.form-note { font-size: var(--fs-sm); color: var(--color-ink-muted); margin: 16px 0 0; }
.field--hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
input.is-error, textarea.is-error { border-color: var(--color-error); }
input.is-error:focus, textarea.is-error:focus { box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-error) 14%, transparent); }
.error-message { font-size: var(--fs-sm); color: var(--color-error); margin: 0; }
.form-error-global { margin-top: 18px; padding: 12px 16px; border: 1px solid color-mix(in srgb, var(--color-error) 40%, var(--color-line)); border-radius: var(--radius); background: color-mix(in srgb, var(--color-error) 7%, transparent); }
.contact-form.is-loading { opacity: 0.7; pointer-events: none; }
.contact-form .button { width: 100%; justify-content: center; }

/* ---------- Final CTA (濃色面・強調) ---------- */
.final-cta { background: var(--color-ink); color: #fff; padding: var(--section-py) 0; text-align: center; }
.final-cta__inner { max-width: var(--container); }
.final-cta__label { font-family: var(--font-en); font-size: 0.75rem; letter-spacing: 0.22em; color: rgba(255,255,255,0.55); margin: 0 0 22px; }
.final-cta__title { font-size: var(--fs-h2); font-weight: 700; line-height: 1.5; margin: 0 0 20px; color: #fff; letter-spacing: 0.02em; }
.final-cta__title b { color: color-mix(in srgb, var(--color-accent) 72%, #fff); }
.final-cta__lead { font-size: var(--fs-body); line-height: 1.9; color: rgba(255,255,255,0.72); margin: 0 auto 40px; max-width: 40em; }
.final-cta__actions { display: inline-flex; align-items: center; gap: 32px; flex-wrap: wrap; justify-content: center; }
.cta-text-on-dark { color: #fff; border-bottom-color: rgba(255,255,255,0.6); }
.cta-text-on-dark:hover { color: #fff; opacity: 0.8; border-color: #fff; }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-ink); color: #fff; padding: clamp(56px, 8vw, 80px) 0 28px; }
.site-footer__inner { max-width: var(--container); margin: 0 auto; padding: 0 24px; display: flex; flex-direction: column; gap: 14px; }
.site-footer__title { margin: 0; line-height: 0; }
.site-footer__logo { height: 28px; width: auto; display: block; filter: invert(1) brightness(2); }
.site-footer .muted { color: rgba(255,255,255,0.6); margin: 0; font-size: var(--fs-sm); }
.site-footer ul { display: flex; flex-wrap: wrap; gap: 24px; margin-top: 16px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.12); }
.site-footer a { color: rgba(255,255,255,0.65); font-size: var(--fs-sm); }
.site-footer a:hover { color: #fff; }
.site-footer__copy { margin: 20px 0 0; color: rgba(255,255,255,0.4); font-family: var(--font-en); font-size: 0.72rem; letter-spacing: 0.04em; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  :root { --section-py: clamp(72px, 10vw, 120px); }
  .work-grid, .cards.cols-3, .cards.cols-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  :root { --section-py: clamp(64px, 12vw, 96px); }
  .site-header__inner { flex-wrap: wrap; min-height: 64px; }
  .site-logo img { height: 21px; }
  .site-menu-button { display: inline-flex; }
  .site-nav { display: none; width: 100%; padding-bottom: 12px; }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav a { min-height: 48px; padding: 0; width: 100%; border-bottom: 1px solid var(--color-line); }
  .site-nav a.is-active::after { display: none; }
  .split-layout { grid-template-columns: 1fr; }
  .section-header--split, .section-head--split { flex-direction: column; align-items: flex-start; }
  .feature { grid-template-columns: 56px 1fr; gap: 8px 20px; }
  .feature-arrow { display: none; }
  .feature-body { grid-column: 2; }
  .work-grid, .cards.cols-2, .cards.cols-3, .cards.cols-4 { grid-template-columns: 1fr; }
  .hero__facts > div { flex-basis: 50%; border-right: 0; padding-right: 16px; }
  .news-row a { grid-template-columns: 1fr; gap: 6px; }
}
@media (max-width: 480px) {
  :root { --section-py: 56px; }
  .cta-button, .button { width: 100%; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}