/* Layout: 余白の多い2列。カードの枠や影は使わず、画像の面と細い罫線だけで区切る */
:root{
  --bg:#ecedea;          /* 霧がかった牧草地のグレー */
  --surface:#f6f6f4;     /* 個体情報などの面 */
  --sheet:#fbfbfa;       /* 画像の下地 */
  --ink:#212422;
  --ink-soft:#6d736f;
  --line:#d3d6d1;
  --accent:#4c5d53;      /* 深いモスグリーン（唯一のアクセント） */
  --accent-soft:#dfe4de;
  --fractal:rgba(76,93,83,.16);  /* 背景のフラクタルの線 */
  --ok:#4f6b57; --ok-bg:#e1e8e1;
  --warn:#9a5146; --warn-bg:#f0e1dd;
  --f-display:"Zen Kaku Gothic New","Hiragino Sans","Noto Sans JP",sans-serif;
  --f-body:"Zen Kaku Gothic New","Hiragino Sans","Noto Sans JP",sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  --r:6px;
  --ease:cubic-bezier(.22,.8,.24,1);
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#1a1c1b;--surface:#222523;--sheet:#eceeea;--ink:#e5e7e3;--ink-soft:#979e99;--line:#333734;--accent:#a6b8aa;--accent-soft:#2c332e;--fractal:rgba(166,184,170,.13);
  --ok:#9fbea6;--ok-bg:#28332b;--warn:#e0a499;--warn-bg:#3d2a26;color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#1a1c1b;--surface:#222523;--sheet:#eceeea;--ink:#e5e7e3;--ink-soft:#979e99;--line:#333734;--accent:#a6b8aa;--accent-soft:#2c332e;--fractal:rgba(166,184,170,.13);
  --ok:#9fbea6;--ok-bg:#28332b;--warn:#e0a499;--warn-bg:#3d2a26;color-scheme:dark}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:14px;line-height:1.7;letter-spacing:.02em;
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));overflow-x:hidden;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:30;background:var(--bg)}
button{font:inherit;color:inherit}
:focus-visible{outline:1.5px solid var(--accent);outline-offset:3px;border-radius:4px}

.wrap{max-width:1120px;margin:0 auto}
main,footer{position:relative;z-index:1}

/* ---------- 背景のフラクタル ---------- */
#fractal{position:fixed;inset:0;width:100%;height:100%;z-index:0;pointer-events:none}

/* ---------- 読み込み画面 ---------- */
.loader{position:fixed;inset:0;z-index:60;display:grid;place-items:center;align-content:center;gap:20px;background:var(--bg);
  transition:opacity .7s var(--ease),visibility 0s .7s;animation:autohide 0s 5s forwards}
.loader.done{opacity:0;visibility:hidden}
@keyframes autohide{to{opacity:0;visibility:hidden}} /* スクリプトが動かなくても5秒で消える */
.loader svg{width:min(200px,52vw);height:auto;overflow:visible}
.loader .body{fill:none;stroke:var(--ink);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.loader .ground{stroke:var(--line);stroke-width:1;stroke-linecap:round}
.loader .grass{stroke:var(--ink-soft);stroke-width:1;stroke-linecap:round}
.loader b{font-family:var(--f-display);font-weight:500;font-size:12px;letter-spacing:.3em;color:var(--ink-soft)}

/* ---------- ヘッダー ---------- */
header{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;margin-left:calc(-1*max(16px,env(safe-area-inset-left,0px)));margin-right:calc(-1*max(16px,env(safe-area-inset-right,0px)));padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:16px;height:60px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);flex:0 0 auto}
.logo svg{width:38px;height:24px;flex:none;overflow:visible}
.logo path{fill:none;stroke:var(--ink);stroke-width:4.2;stroke-linecap:round;stroke-linejoin:round}
.logo b{font-family:var(--f-display);font-weight:500;font-size:15px;letter-spacing:.14em;white-space:nowrap}

.search{margin-left:auto;display:flex;justify-content:flex-end;min-width:0;flex:1 1 auto}
.search .field{display:flex;align-items:center;height:38px;width:38px;border-bottom:1px solid transparent;overflow:hidden;transition:width .5s var(--ease),border-color .3s}
.search.open .field{width:min(300px,100%);border-color:var(--ink)}
.search button.icon{flex:0 0 38px;height:38px;border:0;background:none;display:grid;place-items:center;cursor:pointer;color:var(--ink);border-radius:50%;transition:background .2s}
.search:not(.open) button.icon:hover{background:var(--accent-soft)}
.search button.icon svg{width:18px;height:18px}
.search input{flex:1;min-width:0;border:0;background:none;outline:none;font-family:var(--f-mono);font-size:14px;color:var(--ink);letter-spacing:.06em;padding:0 4px;opacity:0;transition:opacity .25s .15s}
.search.open input{opacity:1}
.search input::-webkit-search-cancel-button{-webkit-appearance:none;appearance:none}
.search .clear{flex:0 0 28px;height:28px;border:0;border-radius:50%;background:none;cursor:pointer;display:grid;place-items:center;color:var(--ink-soft);opacity:0;pointer-events:none;transition:opacity .2s,color .2s}
.search .clear:hover{color:var(--ink)}
.search.has-q .clear{opacity:1;pointer-events:auto}
.search .clear svg{width:11px;height:11px}

/* ---------- 見出し ---------- */
.intro{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:8px 24px;padding-block:56px 32px}
.intro h1{margin:0;font-family:var(--f-display);font-weight:400;font-size:clamp(22px,3.4vw,30px);line-height:1.4;letter-spacing:.08em;text-wrap:balance}
.count{display:flex;align-items:baseline;gap:6px;font-size:12px;color:var(--ink-soft);white-space:nowrap;letter-spacing:.1em}
.count b{font-family:var(--f-mono);font-weight:400;font-size:20px;color:var(--ink);font-variant-numeric:tabular-nums;letter-spacing:0}

/* ---------- ギャラリー ---------- */
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:56px 40px;align-items:start;padding-bottom:88px}
@media (max-width:720px){.grid{grid-template-columns:minmax(0,1fr);gap:40px}.intro{padding-block:36px 24px}}

.card{min-width:0;animation:fade .8s var(--ease) both;animation-delay:calc(var(--i)*60ms)}
@keyframes fade{from{opacity:0}}
.card.out{display:none}
.card.flash .pic.split .cow{animation:hopon .6s cubic-bezier(.34,1.56,.64,1)}

.pic{display:block;width:100%;max-width:100%;border:1px solid var(--line);padding:0;background:var(--sheet);border-radius:var(--r);overflow:hidden;cursor:zoom-in;position:relative;aspect-ratio:1672/941;transition:border-color .3s}
.pic:hover{border-color:color-mix(in srgb,var(--ink) 30%,var(--line))}
.pic img{position:absolute;inset:0;display:block;width:100%;height:100%;object-fit:cover}
.pic .cow{transform-origin:50% 88%}
.pic.split .cow{animation:trot .7s cubic-bezier(.34,1.3,.64,1) both}
.pic.split:hover .cow{animation:hopon .6s cubic-bezier(.34,1.56,.64,1)}
/* 起動時：その場でちょこんと跳ねて止まる */
@keyframes trot{
  0%{transform:none}
  45%{transform:translateY(-4.5%) rotate(-1.5deg) scale(1.01,1.02)}
  75%{transform:scale(1.03,.96)}
  100%{transform:none}}
@keyframes hopon{40%{transform:translateY(-3.5%) rotate(-1.2deg)}70%{transform:scale(1.02,.97)}}
.pic .tag{position:absolute;left:12px;bottom:12px;font-size:11px;font-weight:500;letter-spacing:.08em;padding:2px 9px;border-radius:3px;background:var(--ok-bg);color:var(--ok)}
.pic .tag.warn{background:var(--warn-bg);color:var(--warn)}

.meta{display:flex;align-items:center;gap:12px;padding:14px 0 0}
.id{white-space:nowrap;font-family:var(--f-mono);font-weight:400;font-size:16px;letter-spacing:.08em;font-variant-numeric:tabular-nums;margin:0;line-height:1.2}
.id mark{background:var(--accent-soft);color:var(--accent);border-radius:2px;padding:0 1px}
.ear{font-family:var(--f-mono);font-size:11px;color:var(--ink-soft);letter-spacing:.08em;white-space:nowrap}
.ear::before{content:"";display:inline-block;width:1px;height:10px;background:var(--line);margin-right:12px;vertical-align:-1px}

.toggle{margin-left:auto;display:flex;align-items:center;gap:8px;border:0;background:none;cursor:pointer;font-size:12px;letter-spacing:.1em;color:var(--ink-soft);padding:6px 4px;white-space:nowrap;transition:color .2s}
@media (max-width:420px){.meta{gap:10px}.id{font-size:15px;letter-spacing:.04em}.ear::before{margin-right:10px}}
.toggle:hover,.toggle[aria-expanded="true"]{color:var(--ink)}
.toggle .tri{width:0;height:0;border-left:6px solid currentColor;border-top:4px solid transparent;border-bottom:4px solid transparent;transition:transform .4s var(--ease);transform-origin:35% 50%}
.toggle[aria-expanded="true"] .tri{transform:rotate(90deg)}

.dl{flex:0 0 34px;width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:none;cursor:pointer;display:grid;place-items:center;padding:0;color:var(--ink);
  transition:transform .3s cubic-bezier(.34,1.56,.64,1),background .2s,border-color .2s,color .2s}
.dl:hover{background:var(--ink);border-color:var(--ink);color:var(--bg)}
.dl:active{transform:scale(.9)}
.dl svg{width:18px;height:18px;overflow:visible;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.dl .ring{stroke:var(--accent);stroke-width:1.6;stroke-dasharray:66;stroke-dashoffset:66;transform:rotate(-90deg);transform-origin:12px 12px;opacity:0}
.dl .check{stroke-dasharray:14;stroke-dashoffset:14}
.dl:hover .arrow{animation:nudge .8s ease-in-out infinite}
@keyframes nudge{50%{transform:translateY(2px)}}
.dl[data-state="busy"]{background:none;border-color:var(--line);color:var(--ink)}
.dl[data-state="busy"] .arrow{animation:drop .7s cubic-bezier(.6,0,.4,1) infinite}
.dl[data-state="busy"] .ring{opacity:1;animation:spin 1s linear infinite;stroke-dashoffset:44}
.dl[data-state="busy"] .tray{animation:squash .7s cubic-bezier(.6,0,.4,1) infinite}
@keyframes drop{0%{transform:translateY(-3px);opacity:0}30%{opacity:1}75%{transform:translateY(3px);opacity:1}100%{transform:translateY(5px);opacity:0}}
@keyframes squash{70%{transform:scaleX(1)}80%{transform:scaleX(1.25)}}
@keyframes spin{to{transform:rotate(270deg)}}
.dl[data-state="done"]{background:var(--ok-bg);border-color:var(--ok-bg);color:var(--ok);animation:pop .45s cubic-bezier(.34,1.56,.64,1)}
.dl[data-state="done"] .arrow,.dl[data-state="done"] .tray{opacity:0;transform:scale(.4);transition:.2s}
.dl[data-state="done"] .check{animation:tick .45s .1s cubic-bezier(.65,0,.35,1) forwards}
@keyframes tick{to{stroke-dashoffset:0}}
@keyframes pop{40%{transform:scale(1.15)}}
.dl[data-state="no"]{animation:shake .4s}
@keyframes shake{25%{transform:translateX(-3px)}75%{transform:translateX(3px)}}

/* ---------- 個体情報 ---------- */
.more{display:grid;grid-template-rows:0fr;transition:grid-template-rows .5s var(--ease)}
.more.open{grid-template-rows:1fr}
.more>div{overflow:hidden;min-height:0}
.info{margin-top:14px;padding:20px 20px 22px;background:var(--surface);border-radius:var(--r);opacity:0;transition:opacity .35s}
.more.open .info{opacity:1;transition-delay:.12s}

.facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px 20px;margin:0 0 22px}
@media (max-width:420px){.facts{grid-template-columns:repeat(2,minmax(0,1fr))}.info{padding:16px}}
.fact{min-width:0;border-top:1px solid var(--line);padding-top:8px}
.fact.wide{grid-column:1/-1}
.fact dt{font-size:11px;color:var(--ink-soft);letter-spacing:.1em}
.fact dd{margin:2px 0 0;font-weight:500;font-size:14px;overflow-wrap:anywhere}
.fact dd .big{font-weight:700;font-size:17px;font-family:var(--f-mono);font-variant-numeric:tabular-nums}
.fact dd .u{font-size:11px;color:var(--ink-soft);margin-left:2px;font-weight:400}
.chip{display:inline-block;font-family:var(--f-mono);font-size:12px;font-weight:400;padding:0 7px;border-radius:3px;background:var(--accent-soft);color:var(--accent);margin-right:3px}

.sub{display:flex;align-items:baseline;justify-content:space-between;gap:8px;margin:0 0 6px}
.sub h3{margin:0;font-size:11px;letter-spacing:.14em;color:var(--ink-soft);font-weight:500}
.sub span{font-size:12px;color:var(--ink-soft);font-variant-numeric:tabular-nums}
.spark{width:100%;height:auto;display:block;overflow:visible}
.spark .area{fill:var(--accent);opacity:.08}
.spark .ln{fill:none;stroke:var(--accent);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:var(--len);stroke-dashoffset:var(--len)}
.more.open .spark .ln{animation:draw 1.1s .2s cubic-bezier(.65,0,.35,1) forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.spark .dot{fill:var(--surface);stroke:var(--accent);stroke-width:1.4}
.spark .end{fill:var(--accent)}
.spark text{font-family:var(--f-mono);font-size:9px;fill:var(--ink-soft)}
.spark text.v{fill:var(--ink);font-size:11px;font-weight:500}
.spark .grid-l{stroke:var(--line);stroke-width:1}

.shots{list-style:none;margin:6px 0 0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 20px;font-size:13px}
.shots li{display:flex;justify-content:space-between;align-items:center;gap:8px;border-bottom:1px solid var(--line);padding:6px 0;min-width:0}
.shots li.wide{grid-column:1/-1}
.shots li span:last-child{font-family:var(--f-mono);font-size:12px;white-space:nowrap;font-variant-numeric:tabular-nums}
.shots li.none span:last-child{color:var(--ink-soft)}
.res{font-style:normal;font-family:var(--f-body)!important;font-weight:500;font-size:11px!important;padding:1px 7px;border-radius:3px;margin-left:6px;background:var(--ok-bg);color:var(--ok)}
.res.warn{background:var(--warn-bg);color:var(--warn)}
@media (max-width:420px){.shots{gap:0 14px;font-size:12px}.res{margin-left:4px;padding:1px 5px}}

.tx{list-style:none;margin:6px 0 0;padding:0;font-size:13px}
.tx li{display:grid;grid-template-columns:7.5em minmax(0,1fr);gap:4px 14px;border-bottom:1px solid var(--line);padding:7px 0;align-items:baseline}
.tx .when{font-family:var(--f-mono);font-size:12px;white-space:nowrap;font-variant-numeric:tabular-nums;color:var(--ink-soft)}
.tx .rx{display:flex;flex-wrap:wrap;gap:2px 14px;min-width:0}
.tx .rx i{font-style:normal;font-family:var(--f-mono);font-size:11px;color:var(--ink-soft);margin-left:2px}

/* ---------- 空の状態 ---------- */
.empty{display:none;text-align:center;padding:48px 0 96px;color:var(--ink-soft)}
.empty.show{display:block;animation:fade .5s var(--ease)}
.empty svg{width:64px;height:64px;color:var(--ink-soft)}
.empty p{margin:14px 0 0;font-size:13px}
.empty b{font-family:var(--f-mono);font-weight:400;color:var(--ink)}

footer{max-width:1120px;margin:0 auto;padding-block:20px 40px;font-size:11px;letter-spacing:.08em;color:var(--ink-soft);display:flex;flex-wrap:wrap;gap:6px 16px;justify-content:space-between;border-top:1px solid var(--line)}
footer time{font-family:var(--f-mono);font-variant-numeric:tabular-nums}

/* ---------- ライトボックス ---------- */
.lb{position:fixed;inset:0;z-index:40;display:grid;place-items:center;padding:max(16px,env(safe-area-inset-top,0px)) max(16px,env(safe-area-inset-right,0px)) max(16px,env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px));
  background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);opacity:0;pointer-events:none;transition:opacity .3s}
.lb.open{opacity:1;pointer-events:auto}
.lb figure{margin:0;width:min(1100px,100%);transform:translateY(10px);transition:transform .45s var(--ease)}
.lb.open figure{transform:none}
.lb .stack{position:relative;border-radius:var(--r);overflow:hidden;background:var(--sheet);border:1px solid var(--line);aspect-ratio:1672/941;max-width:100%}
.lb .stack img{position:absolute;inset:0;width:100%;height:100%;display:block}
.lb figcaption{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 0 0}
.lb .close{border:1px solid var(--line);background:none;width:34px;height:34px;border-radius:50%;cursor:pointer;display:grid;place-items:center;color:var(--ink);transition:background .2s,color .2s,border-color .2s}
.lb .close:hover{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.lb .close svg{width:11px;height:11px}

@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.spark .ln{stroke-dashoffset:0}}

body{margin:0}
[hidden]{display:none!important}
.dl{text-decoration:none}
.lb figure{max-height:100%;overflow:auto}
.load-error{text-align:center;padding:32px 0}
.load-error button{border:1px solid var(--line);border-radius:4px;background:var(--surface);color:var(--ink);padding:8px 20px;cursor:pointer}
.loading .card{animation-play-state:paused}
.loading .pic.split .cow{animation:none}
@media(max-width:360px){
  .meta{flex-wrap:wrap;gap:8px}
  .meta .id{flex:1}
  .meta .toggle{margin-left:auto}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.loader{display:none}}