:root{
  --bg:#f4f1ea; --surface:#fbfaf6; --ink:#1a2233; --muted:#576074; --line:#d9d3c4;
  --indigo:#1f2f5a; --indigo-ink:#fff; --teal:#12766f; --amber:#b9770e; --lacquer:#9b2c2c;
  --ok:#17695f; --warn:#8a5a00; --bad:#9b2c2c; --tile0:#e7e2d5; --tile1:#cfe3df; --tile2:#9fcbc4; --tile3:#5fa7a0; --tile4:#12766f;
  --radius:12px; --shadow:0 1px 2px rgba(20,28,50,.08),0 6px 20px rgba(20,28,50,.06);
  --jp:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic","Noto Sans JP","Meiryo",sans-serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,var(--jp);
  --serif:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP",Georgia,serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#121723; --surface:#1a2133; --ink:#e9ecf4; --muted:#a3adc4; --line:#2c3652; --indigo:#8fa6e8; --indigo-ink:#0f1626;
  --teal:#4ec1b6; --amber:#e3a94a; --lacquer:#e88; --ok:#5fd0c3; --warn:#e3a94a; --bad:#f19b9b;
  --tile0:#222b42; --tile1:#21404a; --tile2:#26666a; --tile3:#2f8e8a; --tile4:#4ec1b6; --shadow:0 1px 2px rgba(0,0,0,.4);}}
:root[data-theme="dark"]{--bg:#121723; --surface:#1a2133; --ink:#e9ecf4; --muted:#a3adc4; --line:#2c3652; --indigo:#8fa6e8; --indigo-ink:#0f1626;
  --teal:#4ec1b6; --amber:#e3a94a; --lacquer:#e88; --ok:#5fd0c3; --warn:#e3a94a; --bad:#f19b9b;
  --tile0:#222b42; --tile1:#21404a; --tile2:#26666a; --tile3:#2f8e8a; --tile4:#4ec1b6;}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--sans)}
a{color:var(--indigo);text-underline-offset:3px}
a:hover{color:var(--teal)}
:focus-visible{outline:3px solid var(--amber);outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-999px;top:0;background:var(--indigo);color:var(--indigo-ink);padding:.6rem 1rem;z-index:99}
.skip:focus{left:8px;top:8px}
.wrap{max-width:1120px;margin:0 auto;padding:0 16px}
header.site{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
header.site .wrap{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding-top:10px;padding-bottom:10px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:700;letter-spacing:.01em}
.brand .mark{width:34px;height:34px;border-radius:8px;background:var(--indigo);color:var(--indigo-ink);display:grid;place-items:center;font-family:var(--jp);font-size:20px;font-weight:700}
.brand small{display:block;font-weight:400;color:var(--muted);font-size:.72rem;line-height:1.1}
nav.main{margin-left:auto;display:flex;gap:4px;align-items:center;flex-wrap:wrap}
nav.main a,nav.main summary{padding:8px 12px;border-radius:8px;text-decoration:none;color:var(--ink);cursor:pointer;list-style:none;font-size:.95rem}
nav.main a:hover,nav.main summary:hover,nav.main a[aria-current="page"]{background:color-mix(in srgb,var(--indigo) 12%,transparent)}
nav.main summary::-webkit-details-marker{display:none}
nav.main details{position:relative}
nav.main details[open]>.menu{display:grid}
.menu{display:none;position:absolute;right:0;top:calc(100% + 6px);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:10px;min-width:min(560px,92vw);grid-template-columns:repeat(2,1fr);gap:2px 14px;z-index:30}
.menu h3{grid-column:1/-1;margin:6px 8px 2px;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.menu a{display:flex;justify-content:space-between;gap:8px}
.menu a span.n{color:var(--muted);font-variant-numeric:tabular-nums}
@media (max-width:640px){.menu{grid-template-columns:1fr;right:-8px}}
.hero{padding:44px 0 26px;background:
  linear-gradient(180deg,color-mix(in srgb,var(--indigo) 9%,transparent),transparent 70%)}
.hero h1{font-family:var(--serif);font-size:clamp(1.9rem,5vw,3.1rem);line-height:1.15;margin:.2em 0 .25em;max-width:18ch;letter-spacing:-.01em}
.hero .jp{font-family:var(--jp);color:var(--teal);font-weight:600;letter-spacing:.14em;font-size:.95rem}
.hero p.lede{font-size:1.15rem;max-width:56ch;color:var(--muted);margin:0 0 20px}
.searchbox{display:grid;grid-template-columns:1.4fr 1fr 1fr auto;gap:10px;background:var(--surface);padding:12px;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);max-width:920px}
.searchbox label{display:block;font-size:.72rem;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin-bottom:2px}
input,select,textarea{width:100%;font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:10px 12px;min-height:44px}
button,.btn{font:inherit;min-height:44px;border-radius:8px;border:0;padding:0 18px;background:var(--indigo);color:var(--indigo-ink);font-weight:600;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:6px}
.btn.secondary{background:transparent;color:var(--indigo);border:1px solid var(--indigo)}
.btn:hover{filter:brightness(1.08);color:var(--indigo-ink)}.btn.secondary:hover{color:var(--teal);border-color:var(--teal)}
@media (max-width:760px){.searchbox{grid-template-columns:1fr}}
.stats{display:flex;gap:28px;flex-wrap:wrap;margin:22px 0 0}
.stats div{min-width:110px}.stats b{display:block;font-size:1.9rem;font-family:var(--serif);line-height:1}.stats span{color:var(--muted);font-size:.85rem}
section.block{padding:34px 0}
h2{font-family:var(--serif);font-size:1.6rem;margin:0 0 .3em;line-height:1.2}
h2 .jp,h1 .jp{font-family:var(--jp);font-size:.6em;color:var(--teal);margin-left:.4em;font-weight:600;letter-spacing:.08em}
.sub{color:var(--muted);margin:0 0 18px;max-width:64ch}
.arts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.art-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px;text-decoration:none;color:var(--ink);position:relative;overflow:hidden;transition:transform .12s,border-color .12s}
.art-card:hover{transform:translateY(-2px);border-color:var(--teal);color:var(--ink)}
.art-card .kanji{font-family:var(--jp);font-size:2rem;line-height:1.1;color:var(--indigo);font-weight:700;display:block;margin-bottom:6px}
.art-card .name{font-weight:650}.art-card .cnt{position:absolute;right:14px;top:14px;font-variant-numeric:tabular-nums;color:var(--muted);font-size:.9rem}
.art-card p{margin:.4em 0 0;color:var(--muted);font-size:.88rem;line-height:1.4}
/* tile map */
.tilemap-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);overflow-x:auto}
.tilemap{display:grid;grid-template-columns:repeat(8,minmax(76px,1fr));grid-auto-rows:64px;gap:6px;min-width:620px;position:relative}
.tile{display:flex;flex-direction:column;justify-content:center;align-items:center;border-radius:10px;text-decoration:none;color:var(--ink);background:var(--tile0);text-align:center;font-size:.76rem;line-height:1.15;padding:4px;border:1px solid transparent;transition:transform .1s}
.tile b{font-size:1.15rem;font-variant-numeric:tabular-nums;font-family:var(--serif)}
a.tile:hover{transform:scale(1.05);border-color:var(--ink);color:var(--ink)}
.tile.l1{background:var(--tile1)}.tile.l2{background:var(--tile2)}.tile.l3{background:var(--tile3);color:#fff}.tile.l4{background:var(--tile4);color:#fff}
.tile.l3 b,.tile.l4 b{color:#fff}
.tile.zero{opacity:.55;border:1px dashed var(--line);background:transparent}
.tile.zero b{font-size:.9rem}
.legend{display:flex;gap:6px;align-items:center;font-size:.8rem;color:var(--muted);margin-top:10px;flex-wrap:wrap}
.legend i{width:18px;height:12px;border-radius:3px;display:inline-block}
.islands{display:flex;gap:6px;margin-top:12px;flex-wrap:wrap;align-items:stretch}.islands .tile{width:104px;height:64px}
.islands .label{align-self:center;font-size:.8rem;color:var(--muted);margin-right:6px}
.north-arrow{position:absolute;right:6px;top:2px;font-size:.7rem;color:var(--muted)}
/* listing cards */
.results-bar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:10px 0}
.filters{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px;background:var(--surface);border:1px solid var(--line);padding:14px;border-radius:var(--radius)}
.filters label{font-size:.72rem;text-transform:uppercase;letter-spacing:.07em;color:var(--muted)}
.cards{display:grid;gap:10px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;display:grid;gap:4px}
.card h3{margin:0;font-size:1.05rem;line-height:1.3}.card h3 a{text-decoration:none;color:var(--ink)}.card h3 a:hover{color:var(--teal);text-decoration:underline}
.card .ja{font-family:var(--jp);color:var(--muted);font-size:.9rem}
.card .meta{display:flex;flex-wrap:wrap;gap:6px 14px;font-size:.88rem;color:var(--muted)}
.card .meta a{color:var(--indigo)}
.badge{display:inline-flex;align-items:center;gap:5px;font-size:.74rem;font-weight:600;padding:2px 9px;border-radius:99px;border:1px solid currentColor;white-space:nowrap}
.badge.A{color:var(--ok)}.badge.B{color:var(--warn)}.badge.C{color:var(--muted)}.badge.D{color:var(--bad)}
.badge.A::before{content:"✓"}.badge.B::before{content:"~"}.badge.C::before{content:"◷"}.badge.D::before{content:"?"}
.chip{font-size:.74rem;padding:2px 9px;border-radius:99px;background:color-mix(in srgb,var(--indigo) 12%,transparent);color:var(--ink)}
.pill-row{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
h2.region{margin-top:28px;font-size:1.2rem;border-bottom:1px solid var(--line);padding-bottom:6px}
.muni-head{font-size:1rem;margin:16px 0 6px;color:var(--teal)}
.switcher{display:flex;gap:10px;align-items:center;flex-wrap:wrap;background:var(--surface);border:1px solid var(--line);padding:10px 14px;border-radius:var(--radius);margin:14px 0}
.switcher select{max-width:340px}
.pagehead{padding:30px 0 10px}
.pagehead h1{font-family:var(--serif);font-size:clamp(1.8rem,4.5vw,2.8rem);margin:.1em 0;line-height:1.15}
.pagehead .kanji{font-family:var(--jp);font-size:clamp(2.6rem,9vw,5rem);color:var(--indigo);font-weight:700;line-height:1;letter-spacing:.04em;display:block}
.crumbs{font-size:.85rem;color:var(--muted)}.crumbs a{color:var(--muted)}
.callout{border-left:4px solid var(--amber);background:color-mix(in srgb,var(--amber) 11%,var(--surface));padding:12px 16px;border-radius:0 var(--radius) var(--radius) 0;margin:16px 0}
.callout.info{border-color:var(--teal);background:color-mix(in srgb,var(--teal) 9%,var(--surface))}
.two{display:grid;grid-template-columns:1fr 1fr;gap:22px}@media (max-width:760px){.two{grid-template-columns:1fr}}
dl.facts{display:grid;grid-template-columns:150px 1fr;gap:8px 16px;margin:0}
dl.facts dt{color:var(--muted);font-size:.88rem}dl.facts dd{margin:0;overflow-wrap:anywhere}
@media (max-width:560px){dl.facts{grid-template-columns:1fr}dl.facts dt{margin-top:6px}}
.prose{max-width:72ch}.prose h2{margin-top:1.6em}.prose h3{margin-top:1.4em}
table.data{border-collapse:collapse;width:100%;font-size:.92rem}table.data th,table.data td{border-bottom:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
table.data th{font-size:.75rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.bar{height:8px;border-radius:4px;background:var(--tile4);min-width:2px}
footer.site{margin-top:50px;background:var(--surface);border-top:1px solid var(--line);padding:30px 0;color:var(--muted);font-size:.9rem}
footer.site .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:22px}@media (max-width:700px){footer.site .cols{grid-template-columns:1fr}}
footer.site a{color:var(--muted)}footer.site h4{color:var(--ink);margin:.2em 0 .5em;font-size:.9rem}footer.site ul{list-style:none;padding:0;margin:0}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.empty{padding:26px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:var(--radius)}
.steps{counter-reset:s;list-style:none;padding:0;display:grid;gap:12px}
.steps li{counter-increment:s;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px 14px 56px;position:relative}
.steps li::before{content:counter(s);position:absolute;left:14px;top:12px;width:30px;height:30px;border-radius:50%;background:var(--indigo);color:var(--indigo-ink);display:grid;place-items:center;font-weight:700}
.phrase{display:grid;grid-template-columns:1.2fr 1fr;gap:4px 16px;padding:8px 0;border-bottom:1px solid var(--line)}.phrase .j{font-family:var(--jp);font-size:1.05rem}.phrase .r{color:var(--muted);font-size:.85rem;grid-column:1}.phrase .e{grid-row:1/3;grid-column:2}
@media print{header.site,footer.site,.filters,.switcher,.btn{display:none}body{background:#fff;color:#000}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

.filters label{text-transform:none;letter-spacing:0;font-size:.88rem;color:var(--ink)}.filters label[for]{text-transform:uppercase;letter-spacing:.07em;font-size:.72rem;color:var(--muted)}

.filters .btn,.switcher .btn{white-space:nowrap}.filters>div:last-child{flex-wrap:wrap}