/* ==========================================================
   Artful Inc. — corporate site
   Palette:
     paper    #FBFBF9
     ink      #17171A
     gray     #6A6A6F (5.19:1 on paper — WCAG AA)
     hairline #E4E4E1
     accent   #1D45D8 (signal blue — labels & hover only, 7.0:1)
   Type:
     IBM Plex Sans JP (400/500) — display & body
     IBM Plex Mono (400/500)    — labels, captions, data
   ========================================================== */

:root {
  --paper: #FBFBF9;
  --ink: #17171A;
  --gray: #6A6A6F;
  --hairline: #E4E4E1;
  --accent: #1D45D8;
  --sans: "IBM Plex Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --mono: "IBM Plex Mono", "Menlo", monospace;
  --gutter: clamp(24px, 5vw, 64px);
  --max: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.9;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }

::selection { background: var(--accent); color: #fff; }

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -48px;
  left: var(--gutter);
  z-index: 200;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  padding: 10px 18px;
  transition: top 0.2s ease;
}

.skip-link:focus { top: 0; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(251, 251, 249, 0.88);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.4s ease;
}

.site-header.is-scrolled { border-bottom-color: var(--hairline); }

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-family: "Poppins", var(--sans);
  font-size: 19px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: lowercase;
}

.site-nav { display: flex; gap: clamp(16px, 3vw, 36px); }

.site-nav a {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--gray);
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.25s ease, border-color 0.25s ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

/* 写真ヒーローの上では、スクロールするまで透明ヘッダー+白文字 */
.site-header.over-hero:not(.is-scrolled) {
  background: transparent;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

.site-header.over-hero:not(.is-scrolled) .logo { color: #fff; }

.site-header.over-hero:not(.is-scrolled) .site-nav a { color: rgba(255, 255, 255, 0.72); }

.site-header.over-hero:not(.is-scrolled) .site-nav a:hover,
.site-header.over-hero:not(.is-scrolled) .site-nav a[aria-current="page"] {
  color: #fff;
  border-bottom-color: #A7BCFF;
}

/* ---------- sections ----------
   Rule: every section after the hero opens with a hairline (border-top)
   for a consistent vertical rhythm. The hero alone is borderless. */

section { padding: clamp(80px, 12vw, 150px) 0 0; }

section.sec { border-top: 1px solid var(--hairline); margin-top: clamp(80px, 12vw, 150px); }

/* ヒーロー直後のセクションは余白なしで罫線が動画に接する */
.hero + section.sec { margin-top: 0; }

.sec-label {
  display: flex;
  align-items: baseline;
  gap: 18px;
  font-family: "Poppins", var(--sans);
  font-size: clamp(27px, 3vw, 37px);
  font-weight: 500;
  letter-spacing: 0.03em;
  color: #222;
  margin-bottom: clamp(36px, 5vw, 64px);
}

.sec-label .jp {
  letter-spacing: 0.2em;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 400;
  color: var(--gray);
}

/* ---------- hero (full-bleed photo) ---------- */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  padding: 140px 0 clamp(64px, 12vh, 140px);
  background: #050507;
}

/* 背景動画(クロスフェード切り替え) */
.hero-videos {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero-videos video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1.2s ease;
}

.hero-videos video.is-active { opacity: 1; }

/* 動きを抑えたい設定では動画を出さず静止画(hero.webp)のまま */
@media (prefers-reduced-motion: reduce) {
  .hero-videos { display: none; }
}

/* 文字の可読性を確保するスクリム(下部を暗く) */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    to top,
    rgba(10, 10, 14, 0.78) 0%,
    rgba(10, 10, 14, 0.28) 55%,
    rgba(10, 10, 14, 0.22) 100%
  );
}


.hero-inner { position: relative; z-index: 2; width: 100%; }

.hero-statement {
  font-size: clamp(27px, 4.6vw, 54px);
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 0.05em;
  color: #fff;
}

.hero-statement .kagi { color: #A7BCFF; }

/* eyebrow / lead は採用ページのヒーロー(紙色背景)で使用 */
.hero-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--gray);
  margin-bottom: 32px;
}

.hero-lead {
  max-width: 34em;
  margin-top: 32px;
  color: var(--gray);
  font-size: 14px;
}

.hero-lead strong { color: var(--ink); font-weight: 500; }

.hero-credit {
  position: absolute;
  z-index: 2;
  right: var(--gutter);
  bottom: 20px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.22em;
  color: rgba(255, 255, 255, 0.55);
}

@media (prefers-reduced-motion: no-preference) {
  .js .hero-inner {
    opacity: 0;
    transform: translateY(14px);
    animation: hero-in 1.1s ease 0.15s forwards;
  }
  @keyframes hero-in {
    to { opacity: 1; transform: none; }
  }
}

/* ---------- works ---------- */

.works-intro {
  font-size: clamp(18px, 2.4vw, 26px);
  font-weight: 400;
  line-height: 2;
  letter-spacing: 0.06em;
  max-width: 32em;
  margin-bottom: clamp(56px, 8vw, 100px);
}

/* ---------- works grid ---------- */

.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(40px, 5vw, 64px) 24px;
}

/* 3列時、最終行に1件だけ残る場合は中央に寄せて孤立感をなくす
   (実画像投入時に件数を9または12に揃えるのが理想 — README参照) */
.works-grid .work:last-child:nth-child(3n + 1) { grid-column: 2; }

.work-media {
  overflow: hidden;
  background: #EDEDEA;
}

.work-media img {
  aspect-ratio: 1 / 1;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.work:hover .work-media img { transform: scale(1.03); }

.work-caption { padding-top: 14px; }

.work-caption .cat {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.24em;
  color: var(--accent);
  margin-bottom: 4px;
}

.work-caption .title {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.04em;
}

.work-caption .desc {
  font-size: 12px;
  color: var(--gray);
  line-height: 1.7;
  margin-top: 4px;
}

.work-caption .title { transition: color 0.25s ease; }

.work:hover .work-caption .title,
.work:focus-visible .work-caption .title { color: var(--accent); }

/* スクリーンショット等は切り抜かず、余白つきで収める(背景色は --fit-bg で画像に合わせる) */
.work-media img.is-fit {
  object-fit: contain;
  padding: 9%;
  background: var(--fit-bg, #F3F2F2);
}

/* ---------- work detail page ---------- */

.work-detail-img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #EDEDEA;
}

/* 実写写真・動画は枠いっぱいに切り抜き */
.work-detail-img.is-photo { object-fit: cover; }

/* スクリーンショットは余白つき */
.work-detail-img.is-fit {
  object-fit: contain;
  padding: clamp(20px, 5%, 56px);
  background: var(--fit-bg, #F3F2F2);
}

.work-visuals { display: grid; gap: 24px; }

.work-visuals.cols-2 { grid-template-columns: repeat(2, 1fr); }

/* 縦長スクリーンショット用 */
.work-detail-img.is-tall { aspect-ratio: 4 / 5; }

@media (max-width: 600px) {
  .work-visuals.cols-2 { grid-template-columns: 1fr; }
}

.feature-list { border-top: 1px solid var(--hairline); }

.feature-list li {
  list-style: none;
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--hairline);
  font-size: 14px;
}

.feature-list li::before {
  content: "";
  width: 16px;
  height: 1px;
  background: var(--accent);
  align-self: center;
  flex-shrink: 0;
}

.work-pager {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 24px;
  margin-top: clamp(80px, 12vw, 150px);
  border-top: 1px solid var(--hairline);
}

.work-pager .prev::after { content: none; }

.work-pager .prev::before { content: "←"; font-size: 13px; }

/* case (課題→解決→成果) — 実績詳細ページで使用 */

.case {
  display: grid;
  grid-template-columns: minmax(180px, 320px) 1fr;
  gap: 24px;
  padding: clamp(24px, 3.5vw, 36px) 0;
  border-top: 1px solid var(--hairline);
}

.case:last-child { border-bottom: 1px solid var(--hairline); }

.case h3 { font-size: 15px; font-weight: 500; letter-spacing: 0.05em; line-height: 1.6; }

.case h3 .en {
  display: block;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.22em;
  color: var(--gray);
  margin-top: 6px;
}

.case dl { display: grid; gap: 10px; max-width: 44em; }

.case dt {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.24em;
  color: var(--accent);
}

.case dd { font-size: 13px; color: var(--gray); line-height: 1.8; }

/* アテ数値の注記 — 差し替え後は .note ごと削除する */
.note { font-size: 11px; color: var(--gray); opacity: 0.75; }

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

.service-list { border-top: 1px solid var(--hairline); }

.service {
  display: grid;
  grid-template-columns: minmax(180px, 320px) 1fr;
  gap: 24px;
  padding: clamp(28px, 4vw, 44px) 0;
  border-bottom: 1px solid var(--hairline);
}

.service h3 {
  font-size: 17px;
  font-weight: 500;
  letter-spacing: 0.05em;
  line-height: 1.6;
}

.service h3 .en {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.22em;
  color: var(--gray);
  margin-top: 6px;
}

.service p {
  color: var(--gray);
  font-size: 14px;
  max-width: 38em;
}

.services-note {
  margin-top: clamp(28px, 4vw, 44px);
  font-size: 14px;
  color: var(--gray);
  max-width: 40em;
}

.services-note strong { color: var(--ink); font-weight: 500; }

/* ---------- about / philosophy ---------- */

.philosophy-statement {
  font-size: clamp(20px, 3vw, 32px);
  font-weight: 400;
  line-height: 1.9;
  letter-spacing: 0.06em;
  max-width: 24em;
}

.philosophy-note {
  margin-top: 32px;
  color: var(--gray);
  font-size: 14px;
  max-width: 36em;
}

/* about — オフィス写真を背景にした全幅バンド */

.about-photo {
  position: relative;
  border-top: none;
  padding-bottom: clamp(80px, 12vw, 150px);
  background: url("../assets/img/office.jpg") center / cover no-repeat #17171A;
}

.about-photo::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(12, 11, 10, 0.74);
}

.about-photo > .wrap { position: relative; }

.about-photo .sec-label { color: #fff; }
.about-photo .sec-label .jp { color: rgba(255, 255, 255, 0.65); }
.about-photo .philosophy-statement { color: #fff; }
.about-photo .philosophy-note { color: rgba(255, 255, 255, 0.75); }

.about-photo .profile-table th { color: rgba(255, 255, 255, 0.6); }
.about-photo .profile-table td { color: #fff; }

.about-photo .profile-table th,
.about-photo .profile-table td,
.about-photo .profile-table tr:first-child th,
.about-photo .profile-table tr:first-child td {
  border-color: rgba(255, 255, 255, 0.24);
}

.about-photo .bio-link {
  color: #A7BCFF;
  border-bottom-color: #A7BCFF;
}

/* company profile table */

.profile-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: clamp(40px, 6vw, 72px);
}

.profile-table th,
.profile-table td {
  text-align: left;
  vertical-align: top;
  padding: 18px 0;
  border-bottom: 1px solid var(--hairline);
  font-weight: 400;
}

.profile-table tr:first-child th,
.profile-table tr:first-child td { border-top: 1px solid var(--hairline); }

.profile-table th {
  width: 200px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--gray);
  padding-top: 24px;
}

.profile-table td { font-size: 14px; }

.bio-link {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 1px;
  transition: opacity 0.25s ease;
}

.bio-link:hover { opacity: 0.65; }

/* biography page */

.page-hero-en {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.26em;
  color: var(--gray);
  margin-top: 16px;
}

.bio-list li { padding: 12px 0; }

.bio-list .year {
  display: inline-block;
  min-width: 88px;
}

/* CEO */

.ceo {
  display: grid;
  grid-template-columns: minmax(260px, 480px) 1fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}

.ceo-name {
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.ceo-name .en {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.22em;
  color: var(--gray);
  margin-left: 14px;
}

.ceo-role {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-bottom: 20px;
}

.ceo-bio { color: var(--gray); font-size: 13px; max-width: 40em; }

.ceo-awards { margin-top: 24px; }

.ceo-awards li {
  list-style: none;
  font-size: 12px;
  color: var(--gray);
  padding: 8px 0;
  border-bottom: 1px solid var(--hairline);
  line-height: 1.7;
}

.ceo-awards .year {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--ink);
  margin-right: 14px;
}

/* ---------- recruit banner (index) ---------- */

/* ABOUTの写真背景に上の罫線が直接接するように余白を詰める */
section.sec.recruit-banner { margin-top: 0; }

.recruit-banner .inner { max-width: 40em; }

.recruit-banner h2 {
  font-size: clamp(22px, 3.4vw, 36px);
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: 0.06em;
}

.recruit-banner .inner p { margin-top: 24px; color: var(--gray); font-size: 14px; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 36px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 6px;
  transition: color 0.25s ease, border-color 0.25s ease, gap 0.25s ease;
  background: none;
  cursor: pointer;
}

.link-arrow::after { content: "→"; font-size: 13px; }

.link-arrow:hover { color: var(--accent); border-color: var(--accent); gap: 18px; }

/* ---------- contact ---------- */

/* CONTACTコンテンツの全幅バンド背景 */
.contact-band {
  background: #F3F2F2;
  padding-bottom: clamp(80px, 12vw, 150px);
}

.contact-band > .wrap { position: relative; }

.contact-lead { font-size: 14px; color: var(--gray); max-width: 36em; }

.contact-lead strong { color: var(--ink); font-weight: 500; }

/* engagement models */

.engage-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: clamp(36px, 5vw, 56px);
}

.engage-table caption {
  text-align: left;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--gray);
  padding-bottom: 20px;
}

.engage-table th,
.engage-table td {
  text-align: left;
  vertical-align: top;
  padding: 16px 24px 16px 0;
  border-bottom: 1px solid var(--hairline);
  font-weight: 400;
  font-size: 13px;
}

.engage-table thead th {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.24em;
  color: var(--gray);
  border-bottom: 1px solid var(--ink);
  padding-bottom: 10px;
}

.engage-table tbody th { font-weight: 500; width: 220px; }

.engage-table td { color: var(--gray); }

.engage-table .mono { font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em; }

/* contact form */

.contact-form {
  margin-top: clamp(48px, 7vw, 80px);
  max-width: 640px;
}

/* contact.html ではフォームがセクション先頭に来るため余白を持たせない */
.page-hero + .sec .contact-form { margin-top: 0; }

.contact-form .field { margin-bottom: 32px; }

.contact-form label,
.contact-form legend {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--gray);
  margin-bottom: 10px;
}

.contact-form label .req,
.contact-form legend .req { color: var(--accent); margin-left: 8px; }

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form select,
.contact-form textarea {
  width: 100%;
  background: #FFFFFF;
  border: none;
  border-bottom: 1px solid var(--hairline);
  padding: 12px 14px;
  font-family: var(--sans);
  font-size: 15px;
  color: var(--ink);
  border-radius: 0;
  transition: border-color 0.25s ease, background-color 0.25s ease;
}

.contact-form select { appearance: none; cursor: pointer; }

.contact-form textarea { min-height: 140px; resize: vertical; }

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-bottom-color: var(--accent);
}

.contact-form fieldset { border: none; }

.contact-form .radio-row { display: flex; flex-wrap: wrap; gap: 24px; }

.contact-form .radio-row label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sans);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--ink);
  margin: 0;
  cursor: pointer;
}

.contact-form input[type="radio"] { accent-color: var(--accent); }

.form-note { font-size: 12px; color: var(--gray); margin-top: 24px; }

.form-note a { border-bottom: 1px solid var(--hairline); }

.form-note a:hover { color: var(--accent); border-color: var(--accent); }

/* honeypot — スパム対策の隠しフィールド */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---------- recruit page ---------- */

.page-hero { padding-top: clamp(140px, 20vh, 200px); }

.page-hero h1 {
  font-size: clamp(26px, 4.2vw, 48px);
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: 0.05em;
}

.page-hero .hero-lead { margin-top: 28px; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.card {
  background: var(--paper);
  padding: clamp(24px, 3vw, 40px);
}

.card .tag {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.24em;
  color: var(--accent);
  margin-bottom: 16px;
}

.card h3 {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.05em;
  line-height: 1.6;
  margin-bottom: 12px;
}

.card p { font-size: 13px; color: var(--gray); }

/* members */

.members-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(24px, 4vw, 48px);
}

.member .role {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin: 16px 0 6px;
}

.member .voice { font-size: 13px; color: var(--gray); line-height: 1.8; }

/* jobs */

.job {
  border-top: 1px solid var(--hairline);
  padding: clamp(32px, 5vw, 52px) 0;
}

.job:last-of-type { border-bottom: 1px solid var(--hairline); }

.job h3 { font-size: 19px; font-weight: 500; letter-spacing: 0.06em; }

.job h3 .en {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.22em;
  color: var(--gray);
  margin-left: 16px;
}

.job dl {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 12px 24px;
  margin-top: 24px;
}

.job dt {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--gray);
  padding-top: 3px;
}

.job dd { font-size: 14px; }

.job dd .note { font-size: 12px; color: var(--gray); }

/* selection flow — 実際の手順なので番号付きで示す */

.flow { counter-reset: step; display: grid; gap: 0; border-top: 1px solid var(--hairline); }

.flow li {
  list-style: none;
  counter-increment: step;
  display: grid;
  grid-template-columns: 64px 220px 1fr;
  gap: 16px;
  align-items: baseline;
  padding: 20px 0;
  border-bottom: 1px solid var(--hairline);
}

.flow li::before {
  content: "0" counter(step);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--accent);
}

.flow .step-name { font-size: 15px; font-weight: 500; letter-spacing: 0.05em; }

.flow .step-desc { font-size: 13px; color: var(--gray); }

/* evaluation / persona lists */

.line-list { border-top: 1px solid var(--hairline); }

.line-item {
  display: grid;
  grid-template-columns: minmax(160px, 280px) 1fr;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--hairline);
}

.line-item h3 { font-size: 15px; font-weight: 500; letter-spacing: 0.05em; }

.line-item h3 .en {
  display: block;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.22em;
  color: var(--gray);
  margin-top: 4px;
}

.line-item p { font-size: 13px; color: var(--gray); max-width: 38em; }

/* stack tags */

.stack-tags { display: flex; flex-wrap: wrap; gap: 10px; }

.stack-tags span {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gray);
  border: 1px solid var(--hairline);
  padding: 6px 14px;
  border-radius: 100px;
}

/* apply */

.apply { text-align: center; }

.apply h2 {
  font-size: clamp(22px, 3.4vw, 36px);
  font-weight: 400;
  letter-spacing: 0.1em;
}

.apply p { margin-top: 20px; color: var(--gray); font-size: 14px; }

.apply-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px 48px;
}

.apply .link-arrow { margin-top: 40px; }

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

.site-footer {
  border-top: 1px solid var(--hairline);
  padding: clamp(48px, 7vw, 80px) 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: end;
}

.footer-company { font-size: 13px; color: var(--gray); line-height: 2.1; }

.footer-company .name {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.24em;
  color: var(--ink);
  margin-bottom: 10px;
}

.copyright {
  margin-top: 56px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--gray);
}

/* ---------- reveal on scroll ----------
   .js ゲート: JSが動かない環境では最初から表示 */

@media (prefers-reduced-motion: no-preference) {
  .js .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.9s ease, transform 0.9s ease;
  }
  .js .reveal.is-visible { opacity: 1; transform: none; }
}

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

@media (max-width: 900px) {
  .works-grid { grid-template-columns: repeat(2, 1fr); }
  .works-grid .work:last-child:nth-child(3n + 1) { grid-column: auto; }
  .card-grid { grid-template-columns: 1fr; }
  .members-grid { grid-template-columns: 1fr; max-width: 320px; }
  .service, .line-item, .case { grid-template-columns: 1fr; gap: 8px; }
  .ceo { grid-template-columns: 1fr; }
  .ceo-photo { max-width: 280px; }
  .job dl { grid-template-columns: 120px 1fr; }
  .flow li { grid-template-columns: 48px 1fr; }
  .flow .step-desc { grid-column: 2; }
}

@media (max-width: 600px) {
  /* ロゴ+5項目は1行に収まらないため2段組みにする */
  .site-header .wrap {
    height: auto;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding-top: 16px;
    padding-bottom: 14px;
  }
  .site-nav { width: 100%; justify-content: space-between; gap: 8px; }
  .site-nav a { font-size: 10px; letter-spacing: 0.1em; }
  .hero { padding-top: 120px; }
  .works-grid { grid-template-columns: 1fr; }
  .profile-table th { width: 120px; }
  .footer-grid { grid-template-columns: 1fr; align-items: start; }
  .engage-table thead { display: none; }
  .engage-table tbody th, .engage-table tbody td { display: block; width: 100%; padding: 6px 0; border: none; }
  .engage-table tbody tr { display: block; border-bottom: 1px solid var(--hairline); padding: 14px 0; }
}