/*
  HibiPluStudio — Minimal × Editorial × Warm
  色・寸法は docs/DESIGN.md に準拠。文字に使う色は背景 #F7F5EF に対して 4.5:1 以上を確保している。
*/
:root {
  --bg: #F7F5EF;
  --ink: #3B3329;           /* ブランドの濃茶（11.4:1） */
  --accent: #ED7853;        /* ブランドのオレンジ。装飾専用（背景とのコントラスト 2.6:1 のため文字には使わない） */
  --accent-text: #A34A22;   /* リンク・強調文字用のアクセント（5.4:1） */
  --line: #D9D5CB;
  --sub: #788A79;           /* 装飾専用（3.4:1） */
  --muted: #665C52;         /* 補足テキスト（6.0:1） */
  --panel: #EFECE4;         /* 画像が無いときの下地 */
  --badge-mobile: #3B3329;  /* スマホアプリのバッジ（白文字で 12.4:1） */
  --badge-web: #4E6650;     /* Webアプリのバッジ（白文字で 6.3:1） */

  --font-serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-sans: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", "Meiryo", system-ui, sans-serif;

  --content-max: 1160px;
  --gutter: clamp(16px, 5vw, 48px);
  --section-space: clamp(64px, 10vw, 128px);
  --radius: 6px;

  color-scheme: light;
}

/* ---------- 基本 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-padding-top: 24px; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.85;
  overflow-wrap: anywhere;
  line-break: strict;
}
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3 { font-family: var(--font-serif); font-weight: 600; line-height: 1.5; letter-spacing: .02em; }
p, ul, ol, dl { margin: 0; }

a { color: var(--accent-text); text-underline-offset: .2em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent-text); outline-offset: 3px; border-radius: 2px; }

.skip-link {
  position: absolute; left: 16px; top: -100px; z-index: 10;
  background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: var(--radius);
}
.skip-link:focus { top: 12px; }

.wrap { max-width: var(--content-max); margin-inline: auto; padding-inline: var(--gutter); }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* 文中で改行させたくない語句のかたまり */
.nb { display: inline-block; }

/* ---------- リンク・ボタン ---------- */
.text-link {
  display: inline-flex; align-items: center; gap: .4em; min-height: 44px;
  color: var(--ink); text-decoration: none; font-weight: 500;
  background: linear-gradient(currentColor, currentColor) left calc(50% + .85em) / 0 1px no-repeat;
  transition: background-size .25s ease;
}
.text-link:hover { background-size: 100% 1px; }
.text-link .arrow { transition: transform .25s ease; }
.text-link:hover .arrow { transform: translateX(3px); }
.text-link.back:hover .arrow { transform: translateX(-3px); }

.button {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  min-height: 48px; padding: 10px 24px;
  border-radius: var(--radius); border: 1px solid var(--ink);
  background: var(--ink); color: var(--bg);
  font-weight: 700; font-size: 15px; text-decoration: none;
  transition: background-color .2s ease, color .2s ease;
}
.button:hover { background: transparent; color: var(--ink); }
.button.secondary { background: transparent; color: var(--ink); }
.button.secondary:hover { background: var(--ink); color: var(--bg); }

/* ---------- ヘッダー ---------- */
.site-header { border-bottom: 1px solid var(--line); }
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 0 24px; padding-block: 12px;
}
.logo {
  display: inline-flex; align-items: center; gap: 0 14px;
  min-height: 44px; color: var(--ink); text-decoration: none;
}
.logo img { height: 34px; width: auto; }
@media (min-width: 720px) { .logo img { height: 42px; } }
.logo span { color: var(--muted); font-size: 12px; letter-spacing: .08em; padding-top: .3em; }
/* 狭い画面では、ロゴ横の読みがメニューと重ならないよう省く */
@media (max-width: 959px) { .logo span { display: none; } }

.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0 28px; }
.site-nav a {
  display: inline-flex; align-items: center; min-height: 44px;
  color: var(--ink); text-decoration: none; font-size: 14px; font-weight: 500;
  background: linear-gradient(var(--accent), var(--accent)) left calc(50% + .9em) / 0 1px no-repeat;
  transition: background-size .25s ease;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { background-size: 100% 1px; }

.menu-button {
  display: none; align-items: center; gap: 10px; min-height: 44px; padding: 0 4px;
  background: none; border: 0; color: var(--ink);
  font: inherit; font-size: 14px; font-weight: 500; cursor: pointer;
}
.menu-button .bars { position: relative; width: 18px; height: 10px; }
.menu-button .bars::before, .menu-button .bars::after {
  content: ""; position: absolute; left: 0; right: 0; height: 1.5px; background: currentColor;
  transition: transform .2s ease, top .2s ease;
}
.menu-button .bars::before { top: 0; }
.menu-button .bars::after { top: 8.5px; }
.menu-button[aria-expanded="true"] .bars::before { top: 4.25px; transform: rotate(45deg); }
.menu-button[aria-expanded="true"] .bars::after { top: 4.25px; transform: rotate(-45deg); }

@media (max-width: 719px) {
  .site-nav ul { gap: 0 20px; }
  /* site.js が動いたときだけ折りたたむ（JSが無い環境ではナビを常に表示） */
  .site-header.is-collapsible .menu-button:not([hidden]) { display: inline-flex; }
  .site-header.is-collapsible .site-nav { display: none; width: 100%; }
  .site-header.is-collapsible.is-open .site-nav { display: block; }
  .site-header.is-collapsible .site-nav ul { flex-direction: column; padding-bottom: 8px; }
  .site-header.is-collapsible .site-nav li + li { border-top: 1px solid var(--line); }
  .site-header.is-collapsible .site-nav a { width: 100%; min-height: 52px; font-size: 15px; background: none; }
  .site-header.is-collapsible .site-nav a[aria-current="page"] { color: var(--accent-text); }
}

/* ---------- セクション共通 ---------- */
.section { padding-block: var(--section-space); border-top: 1px solid var(--line); }
.section-head { margin-bottom: clamp(32px, 5vw, 56px); }
.section-title { font-size: clamp(24px, 3vw, 34px); margin: 0; }

/* ---------- ファーストビュー ---------- */
/*
  写真はブランド素材（左側が無地の壁）。PCでは全幅に敷いて壁の部分にコピーを重ね、
  スマホでは文字が植物・机にかからないよう、コピーの下に写真を置く。装飾なので alt は空。
*/
.hero { padding-block: clamp(48px, 10vw, 96px) clamp(64px, 10vw, 96px); }
.hero h1 {
  margin: 0;
  font-size: clamp(32px, 4.2vw, 54px);
  line-height: 1.5; letter-spacing: .04em;
}
.hero p {
  margin-top: clamp(24px, 3vw, 36px);
  color: var(--muted); font-size: clamp(15px, 1.6vw, 18px); line-height: 1.95;
}
.hero-photo {
  margin: 40px var(--gutter) 0; aspect-ratio: 4 / 3;
  border-radius: var(--radius); overflow: hidden; background: var(--panel);
}
.hero-photo img { width: 100%; height: 100%; object-fit: cover; object-position: 88% 70%; }

@media (min-width: 860px) {
  .hero {
    position: relative; display: flex; align-items: center;
    min-height: clamp(520px, 50vw, 720px); padding-block: 64px;
  }
  .hero > .wrap { position: relative; z-index: 1; width: 100%; }
  .hero-text { max-width: min(640px, 52%); }
  /* 壁の木漏れ日の影の上でも 4.5:1 以上を保つため、写真に重ねる文字は濃茶にする */
  .hero p { color: var(--ink); }
  .hero-photo { position: absolute; inset: 0; margin: 0; aspect-ratio: auto; border-radius: 0; }
  .hero-photo img { object-position: right center; }
}

/* ---------- 作品一覧 ---------- */
/* スマホアプリ／Webアプリのグループ */
.works-group + .works-group { margin-top: clamp(64px, 8vw, 96px); }
.works-group-head { margin-bottom: 32px; }
/* 文章中の <wbr>（生成スクリプトの phrased）の位置だけで折り返し、単語の途中で改行しない。
   1つの区切りが枠より長いときだけ、はみ出さないよう途中で折り返す */
.works-group-lead, .works-note, .spec-note { word-break: keep-all; overflow-wrap: anywhere; }
.works-group-title { margin: 0; font-size: clamp(19px, 2vw, 22px); display: flex; align-items: center; gap: 12px; }
.works-group-title::before { content: ""; width: 24px; height: 2px; background: var(--accent); }
.works-group-lead { margin: 10px 0 0; color: var(--muted); font-size: 15px; }
.works-note {
  margin-top: 16px; padding: 14px 18px; border-radius: var(--radius);
  /* 幅は下のカード一覧（.works）と同じ全幅にそろえる */
  background: var(--panel); font-size: 14px; line-height: 1.8;
}
.works-note p { margin: 0; }
.works-note-line { display: block; }
.works-note-title { font-weight: 700; color: var(--ink); margin-bottom: 4px !important; }

.works { list-style: none; margin: 0; padding: 0; display: grid; gap: 56px 40px; grid-template-columns: 1fr; }
/* 3列にしたいときは .works に style="--works-cols: 3" を付ける */
@media (min-width: 760px) {
  .works { grid-template-columns: repeat(var(--works-cols, 2), minmax(0, 1fr)); }
}

.work-card { position: relative; display: flex; flex-direction: column; gap: 20px; }
.work-visual { position: relative; aspect-ratio: 3 / 2; border-radius: var(--radius); overflow: hidden; background: var(--panel); }
/* 対応プラットフォームのバッジ（画像の左上） */
.platform-badges { position: absolute; top: 12px; left: 12px; margin: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.platform-badge {
  padding: 3px 10px; border-radius: 999px; color: #fff;
  font-size: 12px; font-weight: 700; line-height: 1.6; letter-spacing: .04em;
}
.platform-badge.is-mobile { background: var(--badge-mobile); }
.platform-badge.is-web { background: var(--badge-web); }
.work-visual img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.work-card:hover .work-visual img { transform: scale(1.015); }
.work-visual.is-icon, .work-visual.is-empty { display: grid; place-items: center; }
.work-visual.is-icon img { width: clamp(88px, 22%, 128px); height: auto; aspect-ratio: 1; border-radius: 22%; }
.work-card:hover .work-visual.is-icon img { transform: none; }
.work-visual.is-empty > span { font-family: var(--font-serif); font-size: 22px; color: var(--muted); padding: 16px; text-align: center; }

.work-body { display: flex; flex-direction: column; gap: 10px; }
.work-title { margin: 0; font-size: clamp(20px, 2.1vw, 25px); }
.work-title a { color: var(--ink); text-decoration: none; }
/* カード全体をクリック可能にする（リンクはタイトルの1つだけ） */
.work-title a::after { content: ""; position: absolute; inset: 0; border-radius: var(--radius); }
.work-title a:focus-visible { outline: none; }
.work-title a:focus-visible::after { outline: 2px solid var(--accent-text); outline-offset: 6px; }
.work-card:hover .work-title a { text-decoration: underline; text-decoration-thickness: 1px; }
.work-summary { font-size: 15px; }
@media (min-width: 760px) { .work-summary { font-size: 16px; } }

.work-meta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 4px 16px;
  color: var(--muted); font-size: 13px; line-height: 1.6;
}
.status { display: inline-flex; align-items: center; gap: 6px; color: var(--ink); font-weight: 500; }
.status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--muted); }
.status.is-released::before { background: var(--accent); }
.status.is-coming-soon::before { background: var(--sub); }
.status.is-in-development::before { background: transparent; box-shadow: inset 0 0 0 1.5px var(--muted); }

/* ---------- スタジオについて ---------- */
.about { display: grid; gap: 32px 64px; grid-template-columns: 1fr; }
@media (min-width: 900px) { .about { grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); } }
.about-text { display: flex; flex-direction: column; gap: 1.2em; max-width: 38em; }
.about-text p { font-size: 15px; }
@media (min-width: 760px) { .about-text p { font-size: 16px; } }

.facts { margin-top: clamp(40px, 6vw, 64px); border-top: 1px solid var(--line); }
.facts > div {
  display: grid; grid-template-columns: 9em minmax(0, 1fr); gap: 4px 24px;
  padding-block: 18px; border-bottom: 1px solid var(--line);
}
.facts dt { color: var(--muted); font-size: 14px; font-weight: 500; }
.facts dd { margin: 0; font-size: 15px; }
.facts ul { margin: 0; padding-left: 1.2em; }
@media (max-width: 559px) { .facts > div { grid-template-columns: 1fr; } }

/* ---------- 作品詳細 ---------- */
.breadcrumb { padding-top: 16px; }
.work-hero {
  display: grid; gap: 40px 64px; align-items: start; grid-template-columns: 1fr;
  padding-block: clamp(24px, 5vw, 64px) var(--section-space);
}
@media (min-width: 860px) { .work-hero { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); } }
.work-hero h1 { margin: 0; font-size: clamp(30px, 4.6vw, 52px); letter-spacing: .03em; }
.work-hero .work-meta { margin-top: 16px; font-size: 14px; }
.work-hero .description { margin-top: 28px; display: flex; flex-direction: column; gap: 1em; max-width: 36em; }
.work-hero .description p { font-size: 15px; }
@media (min-width: 760px) { .work-hero .description p { font-size: 16px; } }
.work-hero .description .lead { font-size: clamp(16px, 1.7vw, 19px); line-height: 1.9; }

.work-actions { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 12px; }
.availability-note { margin-top: 32px; padding: 4px 0 4px 18px; border-left: 2px solid var(--sub); color: var(--muted); font-size: 14px; }

.main-visual { justify-self: center; width: min(100%, 300px); }
@media (min-width: 860px) { .main-visual { width: min(100%, 380px); } }
.main-visual img { width: 100%; border-radius: var(--radius); background: var(--panel); }
/* 横長のメイン画像は、説明文の下に横幅いっぱいで表示する */
.work-hero.has-wide-visual { grid-template-columns: 1fr; }
.main-visual.is-wide { width: 100%; justify-self: stretch; margin: 0; }
/* 縦長の画像：同じ画像をぼかして敷いた帯の中央に置く */
.main-visual.is-tall {
  position: relative; overflow: hidden; border-radius: var(--radius); background: var(--panel);
  display: grid; place-items: center; padding: clamp(24px, 4vw, 48px) 16px;
}
.main-visual.is-tall .backdrop {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  filter: blur(36px) saturate(1.1); transform: scale(1.2); border-radius: 0;
}
.main-visual.is-tall img:not(.backdrop) {
  position: relative; width: auto; max-width: 100%; height: clamp(360px, 46vw, 560px);
  object-fit: contain; box-shadow: 0 12px 40px rgb(0 0 0 / .3);
}
/* PC では、作品名を左、リードとボタンを右に並べて、右側が空かないようにする */
@media (min-width: 860px) {
  .work-hero.has-wide-visual > div:first-child { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); column-gap: 64px; }
  .has-wide-visual > div:first-child > h1 { grid-area: 1 / 1; }
  .has-wide-visual > div:first-child > .work-meta { grid-area: 2 / 1; align-self: start; }
  .has-wide-visual > div:first-child > .description { grid-area: 1 / 2 / 3; margin-top: 0; padding-top: .4em; }
  .has-wide-visual > div:first-child > .work-actions,
  .has-wide-visual > div:first-child > .availability-note { grid-area: 3 / 2; margin-top: 24px; }
}
.main-visual.is-icon, .main-visual.is-empty {
  width: 100%; aspect-ratio: 4 / 3; display: grid; place-items: center;
  background: var(--panel); border-radius: var(--radius);
}
.main-visual.is-icon img { width: 40%; max-width: 160px; aspect-ratio: 1; border-radius: 22%; background: none; }
.main-visual.is-empty span { font-family: var(--font-serif); font-size: 26px; color: var(--muted); padding: 16px; text-align: center; }

.detail-section { padding-block: clamp(48px, 7vw, 88px); border-top: 1px solid var(--line); }
.detail-section h2 { margin: 0 0 28px; font-size: clamp(22px, 2.6vw, 30px); }

/* 「〇〇について」：PC では見出しを左、本文を右に並べる */
.detail-about { display: grid; gap: 0 64px; grid-template-columns: 1fr; }
@media (min-width: 860px) { .detail-about { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); } }
.detail-text { display: flex; flex-direction: column; gap: 1.2em; max-width: 38em; }
.detail-text p { margin: 0; font-size: 15px; }
@media (min-width: 760px) { .detail-text p { font-size: 16px; } }

.features {
  list-style: none; margin: 0; padding: 0; counter-reset: feature;
  display: grid; gap: 0 48px; grid-template-columns: 1fr;
}
@media (min-width: 760px) { .features { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); } }
.features li {
  counter-increment: feature; padding-block: 18px; border-top: 1px solid var(--line);
  display: grid; grid-template-columns: 2.4em 1fr; font-size: 15px;
}
@media (min-width: 760px) { .features li { font-size: 16px; } }
.features li::before {
  content: counter(feature, decimal-leading-zero);
  font-family: var(--font-serif); color: var(--accent-text); font-size: 14px; padding-top: .15em;
}

.screenshots {
  list-style: none; margin: 0; padding: 0 0 8px;
  display: grid; grid-auto-flow: column; grid-auto-columns: minmax(180px, 240px); gap: 16px;
  overflow-x: auto; scroll-snap-type: x proximity; overscroll-behavior-x: contain;
}
.screenshots li { scroll-snap-align: start; }
.screenshots img { width: 100%; border-radius: var(--radius); background: var(--panel); }

.spec-list { border-top: 1px solid var(--line); }
.spec-list > div {
  display: grid; grid-template-columns: 9em minmax(0, 1fr); gap: 4px 24px;
  padding-block: 16px; border-bottom: 1px solid var(--line);
}
.spec-list dt { color: var(--muted); font-size: 14px; font-weight: 500; }
.spec-list dd { margin: 0; font-size: 15px; }
.spec-list ul { list-style: none; margin: 0; padding: 0; }
.spec-note { display: block; margin-top: 4px; color: var(--muted); font-size: 13px; }
@media (max-width: 559px) { .spec-list > div { grid-template-columns: 1fr; } }

.link-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0 32px; }

/* ---------- 規約・お問い合わせページ ---------- */
.page { padding-block: clamp(48px, 7vw, 88px) clamp(64px, 9vw, 112px); max-width: calc(760px + var(--gutter) * 2); }
.page .brand { color: var(--accent-text); font-weight: 700; font-size: 14px; letter-spacing: .06em; margin: 0 0 8px; }
.page h1 { font-size: clamp(26px, 3.4vw, 34px); margin: 0 0 8px; }
.page .date { color: var(--muted); font-size: 14px; margin: 0 0 32px; }
.page h2 {
  font-size: clamp(21px, 2.4vw, 25px);
  margin: 56px 0 12px; padding-top: 32px; border-top: 1px solid var(--line);
}
.page h3 { font-family: var(--font-sans); font-weight: 700; font-size: 17px; margin: 36px 0 10px; letter-spacing: 0; }
.page p { margin: 0 0 14px; }
.page ul { margin: 0 0 14px; padding-left: 1.3em; }
.page li { margin-bottom: 6px; }
.toc { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 32px; }
.toc a {
  display: inline-flex; align-items: center; min-height: 44px;
  font-size: 14px; text-decoration: none; color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 6px 16px;
}
.toc a:hover { border-color: var(--ink); }
.note { color: var(--muted); font-size: 14px; }

table.terms { width: 100%; border-collapse: collapse; margin: 8px 0 28px; font-size: 15px; }
table.terms tr { border-top: 1px solid var(--line); }
table.terms tr:last-child { border-bottom: 1px solid var(--line); }
table.terms th, table.terms td { text-align: left; vertical-align: top; padding: 14px 10px; }
table.terms th { width: 30%; color: var(--muted); font-size: 14px; font-weight: 500; }
@media (max-width: 559px) {
  table.terms tr { display: block; padding: 12px 0; }
  table.terms th, table.terms td { display: block; width: auto; padding: 2px 0; }
}

.mail-btn {
  display: inline-flex; align-items: center; min-height: 48px;
  background: var(--ink); color: var(--bg); border: 1px solid var(--ink);
  text-decoration: none; font-weight: 700; border-radius: var(--radius);
  padding: 10px 24px; margin: 4px 0 24px;
  transition: background-color .2s ease, color .2s ease;
}
.mail-btn:hover { background: transparent; color: var(--ink); }

/* ---------- フッター ---------- */
.site-footer { border-top: 1px solid var(--line); padding-block: clamp(48px, 7vw, 80px) 40px; font-size: 14px; }
.footer-grid { display: grid; gap: 32px 48px; grid-template-columns: 1fr; }
@media (min-width: 760px) { .footer-grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); } }
.footer-brand img { height: 36px; width: auto; }
.footer-brand p { color: var(--muted); font-size: 13px; margin-top: 8px; letter-spacing: .08em; }
.footer-nav { display: grid; gap: 24px 40px; grid-template-columns: 1fr; }
@media (min-width: 560px) { .footer-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.footer-heading { font-family: var(--font-sans); font-size: 13px; font-weight: 500; color: var(--muted); margin: 0 0 4px; letter-spacing: .04em; }
.footer-nav ul { list-style: none; margin: 0; padding: 0; }
.footer-nav a { display: inline-flex; align-items: center; min-height: 40px; color: var(--ink); text-decoration: none; }
.footer-nav a:hover { text-decoration: underline; }
.copyright { margin-top: 48px; color: var(--muted); font-size: 12px; }

/* ---------- 動きを減らす設定 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
  .work-card:hover .work-visual img { transform: none; }
}