/* =====================================================================
   魚浦収蔵庫 民具3Dデータベース — スタイル
   方針: 標本室の信頼感 × 図鑑のわかりやすさ × 3Dビューアの操作感 × 収蔵庫の温度
   素材(木・土・石・鉄)の色を基調に、装飾より余白と文字で組む。
   ===================================================================== */

:root {
  --paper: #f6f1e6;        /* 生成りの紙 */
  --paper-2: #efe7d5;      /* 少し濃い紙 */
  --card: #fbf8f0;
  --ink: #2e2a24;          /* 墨 */
  --ink-soft: #6b6355;
  --line: #ddd2bc;
  --kaki: #a3491f;         /* 柿渋 — 主アクセント */
  --kaki-deep: #83391a;
  --ai: #31597f;           /* 藍 — リンク・事実 */
  --moss: #5c6f4a;         /* 苔 — 使える度OK */
  --amber: #9c6b1e;        /* 見立て */
  --gray: #8b8375;         /* 未確認 */
  --radius: 12px;
  --shadow: 0 1px 2px rgba(70, 58, 40, .08), 0 4px 14px rgba(70, 58, 40, .07);
  --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;
}

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

body {
  margin: 0;
  background: var(--paper);
  /* 紙の質感(ごく薄いノイズ) */
  background-image: radial-gradient(rgba(120, 100, 70, .045) 1px, transparent 1.4px);
  background-size: 26px 26px;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.85;
  -webkit-text-size-adjust: 100%;
}

h1, h2, h3, .serif { font-family: var(--serif); font-weight: 600; letter-spacing: .02em; }
h1 { font-size: 1.7rem; line-height: 1.5; margin: 0 0 .5em; }
h2 { font-size: 1.35rem; margin: 2.2em 0 .7em; }
h3 { font-size: 1.1rem; margin: 1.6em 0 .5em; }
p { margin: .5em 0 1em; }
a { color: var(--ai); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--kaki); }
img, svg { max-width: 100%; height: auto; }
button { font-family: inherit; }

.wrap { max-width: 1060px; margin: 0 auto; padding: 0 20px; }
.center { text-align: center; }
.muted { color: var(--ink-soft); }
.small { font-size: .85rem; }

/* ---------- サンプル(仮)データの帯 ---------- */
.data-banner {
  background: #f3e3c8;
  border-bottom: 1px solid var(--line);
  color: #6d5322;
  font-size: .8rem;
  padding: 6px 20px;
  text-align: center;
}

/* ---------- ヘッダー ---------- */
header.site {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.site-inner {
  max-width: 1060px; margin: 0 auto; padding: 14px 20px 10px;
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 22px;
}
.brand { display: flex; align-items: baseline; gap: 12px; text-decoration: none; color: var(--ink); }
.brand:hover { color: var(--kaki); }
.brand .mark {
  font-family: var(--serif); font-size: 1.25rem; font-weight: 700; letter-spacing: .04em;
}
.brand .tagline { font-size: .78rem; color: var(--ink-soft); }
nav.global { margin-left: auto; display: flex; flex-wrap: wrap; gap: 2px 4px; }
nav.global a {
  text-decoration: none; color: var(--ink); font-size: .92rem;
  padding: 6px 12px; border-radius: 8px;
}
nav.global a:hover { background: var(--paper-2); color: var(--kaki); }
nav.global a[aria-current="page"] { background: var(--ink); color: var(--paper); }

/* ---------- フッター ---------- */
footer.site {
  margin-top: 90px; border-top: 1px solid var(--line);
  background: var(--paper-2);
  font-size: .85rem; color: var(--ink-soft);
}
footer.site .wrap { padding: 28px 20px 40px; }
footer.site nav { display: flex; flex-wrap: wrap; gap: 4px 18px; margin-bottom: 12px; }
footer.site a { color: var(--ink-soft); }

/* ---------- バッジ・チップ ---------- */
.badge {
  display: inline-block; font-size: .74rem; line-height: 1;
  padding: 5px 9px; border-radius: 999px; vertical-align: middle;
  border: 1.5px solid transparent; white-space: nowrap;
}
.badge.fact { background: var(--ai); color: #fff; }
.badge.guess { background: #fff; color: var(--amber); border-color: var(--amber); }
.badge.unknown { background: none; color: var(--gray); border: 1.5px dashed var(--gray); }
.badge.st-ok { background: var(--moss); color: #fff; }
.badge.st-mid { background: #fff; color: var(--moss); border-color: var(--moss); }
.badge.st-view { background: #fff; color: var(--gray); border-color: var(--gray); }
.badge.d3 { background: var(--kaki); color: #fff; }
.badge.kari { background: none; color: var(--gray); border: 1px solid var(--line); }

.chip {
  display: inline-block; font-size: .8rem; line-height: 1.2;
  background: var(--paper-2); border: 1px solid var(--line); border-radius: 999px;
  padding: 4px 12px; color: #574f41; text-decoration: none;
}
a.chip:hover, .chip.on { background: var(--kaki); border-color: var(--kaki); color: #fff; }
button.chip { cursor: pointer; }

.conf { font-size: .74rem; border-radius: 4px; padding: 2px 6px; background: var(--paper-2); color: var(--ink-soft); white-space: nowrap; }
.conf.hi { background: #e3ead8; color: #44582e; }
.conf.mid { background: #f0e3c6; color: #7a5c1c; }
.conf.lo { background: #eee3dd; color: #8a5540; }

/* ---------- カード ---------- */
.grid {
  display: grid; gap: 18px;
  grid-template-columns: repeat(auto-fill, minmax(215px, 1fr));
  padding: 0; margin: 1.2em 0; list-style: none;
}
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .15s ease, box-shadow .15s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 3px 6px rgba(70,58,40,.1), 0 10px 24px rgba(70,58,40,.12); }
.card a.body { text-decoration: none; color: inherit; display: flex; flex-direction: column; flex: 1; }
.card .thumb {
  background: linear-gradient(180deg, #f1ead9, #e9dfc8);
  display: flex; align-items: center; justify-content: center;
  aspect-ratio: 4 / 3; padding: 14px; position: relative;
}
.card .thumb img { max-height: 100%; width: auto; }
.photo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.photo-grid figure { margin: 0; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.photo-grid img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.photo-grid figcaption { font-size: .84rem; color: var(--ink-soft); padding: 8px 12px; }
.card .thumb.photo { padding: 0; overflow: hidden; }
.card .thumb.photo img { width: 100%; height: 100%; max-height: none; object-fit: cover; }
.card .thumb .badge.d3 { position: absolute; top: 10px; right: 10px; }
.card .txt { padding: 12px 16px 16px; display: flex; flex-direction: column; gap: 6px; flex: 1; }
.card .name { font-family: var(--serif); font-size: 1.06rem; font-weight: 600; }
.card .kana { font-size: .74rem; color: var(--ink-soft); margin-left: .4em; font-family: var(--sans); font-weight: 400; }
.card .hook { font-size: .84rem; color: var(--ink-soft); line-height: 1.6; flex: 1; }
.card .meta { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 4px; }

/* ---------- ホーム ---------- */
.hero {
  display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: center;
  padding: 44px 0 30px;
}
.hero .copy h1 { font-size: 2.05rem; line-height: 1.6; }
.hero .copy .lead { color: var(--ink-soft); }
.hero .cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.btn {
  display: inline-block; text-decoration: none; border-radius: 10px; cursor: pointer;
  padding: 11px 22px; font-size: .95rem; border: 1.5px solid var(--ink); color: var(--ink); background: none;
}
.btn.primary { background: var(--kaki); border-color: var(--kaki); color: #fff; }
.btn.primary:hover { background: var(--kaki-deep); border-color: var(--kaki-deep); color: #fff; }
.btn:hover { background: var(--ink); color: var(--paper); }

.hero-viewer {
  position: relative;
  background: linear-gradient(180deg, #f2ebdb, #e7dcc3);
  border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow);
  min-height: 340px; overflow: hidden;
}
.hero-viewer model-viewer { width: 100%; height: 380px; }
.viewer-note {
  position: absolute; left: 12px; bottom: 10px; font-size: .72rem; color: var(--ink-soft);
  background: rgba(251, 248, 240, .85); border-radius: 6px; padding: 3px 8px; pointer-events: none;
}

.section-head { display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; margin-top: 2.6em; }
.section-head h2 { margin: 0; }
.section-head .more { margin-left: auto; font-size: .88rem; }

/* 入口タイル */
.doors { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 1.2em 0; }
.door {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 20px 18px; text-decoration: none; color: inherit; box-shadow: var(--shadow);
}
.door:hover { border-color: var(--kaki); }
.door .t { font-family: var(--serif); font-size: 1.08rem; font-weight: 600; color: var(--kaki-deep); }
.door p { font-size: .86rem; color: var(--ink-soft); margin: .4em 0 0; }

/* 価値タグの棚 */
.value-shelf { display: flex; flex-wrap: wrap; gap: 8px; margin: 1em 0 0; }

/* ---------- 一株の稲から(チェーン) ---------- */
.chain { margin: 1.4em 0; padding: 0; list-style: none; }
.chain li {
  position: relative; padding: 12px 16px 12px 52px; margin: 0 0 8px;
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
}
.chain li::before {
  content: attr(data-step);
  position: absolute; left: 14px; top: 14px;
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--ink); color: var(--paper);
  font-size: .8rem; display: flex; align-items: center; justify-content: center;
  font-family: var(--serif);
}
.chain li.missing { border-style: dashed; background: none; }
.chain li.missing::before { background: none; border: 1.5px dashed var(--gray); color: var(--gray); }
.chain .t { font-weight: 600; font-size: .95rem; }
.chain .items { display: inline-flex; flex-wrap: wrap; gap: 6px; margin-left: 10px; vertical-align: middle; }
.chain .missing-note { font-size: .82rem; color: var(--kaki-deep); }

/* ---------- 一覧(さがす) ---------- */
.filters {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px; margin: 1em 0 1.4em; box-shadow: var(--shadow);
}
.filters .row { display: flex; flex-wrap: wrap; gap: 8px 10px; align-items: center; margin: 6px 0; }
.filters .row .lbl { font-size: .8rem; color: var(--ink-soft); min-width: 6.5em; }
.filters input[type="search"], .filters select {
  font: inherit; font-size: .92rem; color: var(--ink);
  background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 7px 10px;
}
.filters input[type="search"] { flex: 1; min-width: 180px; }
.filters .count { margin-left: auto; font-size: .85rem; color: var(--ink-soft); }
.filters .reset { font-size: .82rem; }

/* ---------- 詳細ページ ---------- */
.crumbs { font-size: .78rem; color: var(--ink-soft); margin: 18px 0 4px; }
.crumbs a { color: var(--ink-soft); }
.crumbs .ref { margin-left: 10px; letter-spacing: .06em; background: var(--paper-2); border-radius: 4px; padding: 2px 7px; }

.item-head { margin: 4px 0 14px; }
.item-head h1 { margin-bottom: .15em; }
.item-head .kana { color: var(--ink-soft); font-size: .9rem; }
.item-head .badges { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 10px; }

.item-cols { display: grid; grid-template-columns: 11fr 9fr; gap: 30px; align-items: start; }

.viewer-block {
  background: linear-gradient(180deg, #f2ebdb, #e7dcc3);
  border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow);
  overflow: hidden; position: relative;
}
.viewer-block model-viewer { width: 100%; height: 430px; background: transparent; }
.viewer-fallback { padding: 34px 24px; text-align: center; }
.viewer-fallback img { max-height: 300px; }
.viewer-fallback .note { font-size: .82rem; color: var(--ink-soft); margin-top: 10px; }
.viewer-tools {
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
  padding: 10px 14px; border-top: 1px solid var(--line); background: rgba(251,248,240,.7);
}
.viewer-tools button {
  font-size: .8rem; cursor: pointer; border: 1px solid var(--line); background: #fff;
  border-radius: 8px; padding: 6px 12px; color: var(--ink);
}
.viewer-tools button:hover { border-color: var(--kaki); color: var(--kaki); }
.viewer-tools .disc { font-size: .72rem; color: var(--ink-soft); margin-left: auto; }

/* model-viewer ホットスポット */
.hs {
  --dot: 24px;
  background: none; border: none; padding: 0; cursor: pointer;
  position: relative;
}
.hs .dot {
  display: flex; align-items: center; justify-content: center;
  width: var(--dot); height: var(--dot); border-radius: 50%;
  background: var(--kaki); color: #fff; font-size: .74rem; font-weight: 700;
  border: 2px solid #fff; box-shadow: 0 1px 5px rgba(0,0,0,.3);
  transition: transform .12s ease;
}
.hs:hover .dot { transform: scale(1.18); }
.hs .tip {
  display: none; position: absolute; left: 50%; bottom: calc(var(--dot) + 8px);
  transform: translateX(-50%);
  width: max-content; max-width: 240px;
  background: rgba(46, 42, 36, .95); color: #f6f1e6;
  font-size: .78rem; line-height: 1.6; text-align: left;
  border-radius: 8px; padding: 8px 12px; z-index: 3;
}
.hs .tip b { display: block; color: #f0c9a6; }
.hs.open .tip { display: block; }
.hs-hidden .hs { display: none; }

.part-list { margin: 8px 0 0; padding: 0; list-style: none; font-size: .86rem; }
.part-list li { display: inline; }
.part-list button {
  background: none; border: none; cursor: pointer; font-size: .84rem;
  color: var(--ai); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px;
  padding: 2px 4px;
}
.part-list button:hover { color: var(--kaki); }

/* サイズ感 */
.scale-box { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.scale-box svg { display: block; margin: 0 auto; }
.scale-box .cap { font-size: .78rem; color: var(--ink-soft); text-align: center; margin-top: 6px; }

/* データ表 */
table.spec { width: 100%; border-collapse: collapse; font-size: .88rem; margin: .6em 0 1em; }
table.spec th, table.spec td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.spec th { color: var(--ink-soft); font-weight: 600; white-space: nowrap; width: 7.5em; }

/* ---------- 事実と見立ての三段 ---------- */
.evidence { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 1em 0; }
.ev-col { border-radius: var(--radius); padding: 16px 16px 12px; border: 1px solid var(--line); background: var(--card); }
.ev-col.fact { border-top: 4px solid var(--ai); }
.ev-col.guess { border-top: 4px solid var(--amber); }
.ev-col.unknown { border-top: 4px dashed var(--gray); background: none; }
.ev-col h3 { margin: 0 0 10px; font-size: .95rem; display: flex; align-items: center; gap: 8px; }
.ev-col ul { margin: 0; padding: 0 0 0 1.15em; font-size: .86rem; }
.ev-col li { margin-bottom: 9px; }
.ev-col .basis { display: block; font-size: .76rem; color: var(--ink-soft); }
.todo-line { font-size: .84rem; color: var(--ink-soft); background: var(--paper-2); border-radius: 8px; padding: 10px 14px; }

/* 使い方ステップ */
ol.steps { counter-reset: st; list-style: none; margin: .8em 0; padding: 0; }
ol.steps li {
  counter-increment: st; position: relative;
  padding: 8px 12px 8px 48px; margin-bottom: 6px;
  background: var(--card); border: 1px solid var(--line); border-radius: 9px; font-size: .9rem;
}
ol.steps li::before {
  content: counter(st);
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  width: 24px; height: 24px; border-radius: 50%; background: var(--kaki); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: .78rem; font-family: var(--serif);
}
ul.safety { margin: .6em 0; padding: 0; list-style: none; font-size: .88rem; }
ul.safety li { padding: 6px 10px 6px 30px; position: relative; }
ul.safety li::before { content: "!"; position: absolute; left: 6px; top: 6px; width: 17px; height: 17px; font-size: .72rem; font-weight: 700; border-radius: 50%; background: #b3543a; color: #fff; display: flex; align-items: center; justify-content: center; }

/* 活用アイデアカード */
.idea-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 1em 0; }
.idea {
  background: var(--card); border: 1px solid var(--line); border-left: 4px solid var(--kaki);
  border-radius: 10px; padding: 14px 16px;
}
.idea .t { font-weight: 600; font-size: .95rem; }
.idea p { font-size: .85rem; color: var(--ink-soft); margin: .4em 0 .5em; }
.idea .scenes { display: flex; gap: 6px; flex-wrap: wrap; }

/* 呼びかけ・CTA */
.callout {
  background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 22px; margin: 1.6em 0;
}
.callout .t { font-family: var(--serif); font-weight: 600; font-size: 1.05rem; margin-bottom: .3em; }
.callout p { font-size: .9rem; margin: .3em 0; }

/* 記録情報 */
details.record { border: 1px solid var(--line); border-radius: 10px; background: var(--card); padding: 0 16px; margin: 1em 0; }
details.record summary { cursor: pointer; padding: 12px 0; font-size: .9rem; color: var(--ink-soft); }
details.record[open] summary { border-bottom: 1px solid var(--line); }
.record-body { padding: 12px 0 14px; font-size: .86rem; }
.record-body ul { margin: .3em 0; padding-left: 1.2em; }

/* 前後ナビ */
.item-nav { display: flex; justify-content: space-between; gap: 12px; margin: 2em 0 0; font-size: .88rem; }
.item-nav a { text-decoration: none; }

/* ---------- 活用アイデアページ ---------- */
.scene-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin: 1em 0 1.4em; }
.plan {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 22px 24px; margin: 1.2em 0;
}
.plan h3 { margin-top: 0; }
.plan .target { font-size: .82rem; color: var(--ink-soft); }
.plan ol { font-size: .9rem; padding-left: 1.3em; }
.plan .uses { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; }
.plan .note { font-size: .8rem; color: #8a5540; background: #f4e9e2; border-radius: 8px; padding: 8px 12px; }

/* ---------- about / meta ---------- */
.prose { max-width: 720px; }
.prose h2 { border-bottom: 1px solid var(--line); padding-bottom: .3em; }
.legend { display: grid; gap: 10px; margin: 1em 0; }
.legend .row { display: flex; gap: 12px; align-items: baseline; font-size: .88rem; }
.legend .row .badge { flex-shrink: 0; }
blockquote.voice {
  margin: 1.4em 0; padding: 4px 22px; border-left: 4px solid var(--kaki);
  background: var(--card); border-radius: 0 10px 10px 0; font-family: var(--serif);
}
.src-list { font-size: .86rem; }
.src-list li { margin-bottom: .5em; }
.hier { list-style: none; padding: 0; font-size: .9rem; }
.hier li { padding: 8px 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--card); margin-bottom: 6px; }
.hier li:nth-child(2) { margin-left: 24px; }
.hier li:nth-child(3) { margin-left: 48px; }
.hier li:nth-child(4) { margin-left: 72px; }

/* ---------- レスポンシブ ---------- */
@media (max-width: 900px) {
  nav.global { margin-left: 0; }
  nav.global a { font-size: .84rem; padding: 5px 9px; }
  .hero { grid-template-columns: 1fr; padding-top: 26px; }
  .item-cols { grid-template-columns: 1fr; }
  .doors { grid-template-columns: 1fr; }
  .evidence { grid-template-columns: 1fr; }
  .idea-cards { grid-template-columns: 1fr; }
  .viewer-block model-viewer { height: 330px; }
  .hero-viewer model-viewer { height: 300px; }
  h1 { font-size: 1.45rem; }
  .hero .copy h1 { font-size: 1.6rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .card, .card:hover { transition: none; transform: none; }
}