:root{
  --bg:#f6f7f9;--card:#ffffff;--text:#1d2330;--muted:#5d6577;--line:#dfe3ea;
  --accent:#2f5bd3;--accent-weak:#e8eefc;--ok:#1d7a46;--warn:#b25b00;--ng:#c0392b;
  --sky:#0d1426;--frame:#ffd34d;--subject:#ff7a59;--subject-weak:rgba(255,122,89,.28);
  --radius:12px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#11141a;--card:#1a1f28;--text:#e7eaf0;--muted:#a3abba;--line:#2c3340;
    --accent:#7d9cff;--accent-weak:#232c45;--ok:#5fd08f;--warn:#ffb35c;--ng:#ff7b6b;
    --sky:#070b16;
  }
}
:root[data-theme="dark"]{
  --bg:#11141a;--card:#1a1f28;--text:#e7eaf0;--muted:#a3abba;--line:#2c3340;
  --accent:#7d9cff;--accent-weak:#232c45;--ok:#5fd08f;--warn:#ffb35c;--ng:#ff7b6b;
  --sky:#070b16;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);
  font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic UI",Meiryo,sans-serif;
  line-height:1.75;font-size:16px}
a{color:var(--accent)}
.wrap{max-width:960px;margin:0 auto;padding:0 16px}
header.site{background:var(--card);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:12px;padding-bottom:12px}
.logo{font-weight:700;text-decoration:none;color:var(--text);font-size:1.05rem}
.logo span{color:var(--accent)}
nav.top a{margin-left:14px;font-size:.92rem;text-decoration:none}
main{padding:20px 0 40px}
h1{font-size:1.45rem;line-height:1.45;margin:.4em 0 .3em}
h2{font-size:1.2rem;margin:1.8em 0 .6em;padding-left:10px;border-left:4px solid var(--accent)}
h3{font-size:1.05rem;margin:1.4em 0 .4em}
.lead{color:var(--muted);margin-top:0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin:16px 0}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:760px){.grid{grid-template-columns:1fr}}
fieldset{border:none;margin:0 0 14px;padding:0}
legend{font-weight:700;margin-bottom:6px;font-size:.98rem}
label{display:block;font-size:.88rem;color:var(--muted);margin:8px 0 3px}
input[type=number],select{width:100%;padding:9px 10px;font-size:1rem;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--text)}
input[type=number]:focus,select:focus{outline:2px solid var(--accent);outline-offset:1px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px}
.inline{display:flex;gap:8px;align-items:center}
.inline select{width:auto;flex:0 0 auto}
.seg{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.seg button{flex:1;padding:8px 6px;border:none;background:var(--bg);color:var(--text);font-size:.92rem;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--accent);color:#fff}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
.chips button{border:1px solid var(--line);background:var(--bg);color:var(--text);border-radius:999px;padding:4px 10px;font-size:.85rem;cursor:pointer}
.chips button:hover{border-color:var(--accent)}
.note{font-size:.84rem;color:var(--muted)}
canvas#view{width:100%;height:auto;display:block;border-radius:10px;background:var(--bg)}
.status{font-weight:700;font-size:1.05rem;margin:10px 0 4px}
.status.ok{color:var(--ok)}.status.warn{color:var(--warn)}.status.ng{color:var(--ng)}
table{border-collapse:collapse;width:100%;font-size:.92rem}
th,td{border-bottom:1px solid var(--line);padding:7px 6px;text-align:left;vertical-align:top}
th{color:var(--muted);font-weight:600;white-space:nowrap}
td.num{text-align:right;font-variant-numeric:tabular-nums}
.res td:first-child{color:var(--muted);width:46%}
.res td:last-child{font-weight:600;font-variant-numeric:tabular-nums}
.tablewrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.formula{background:var(--accent-weak);border-radius:8px;padding:10px 12px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.95rem;overflow-x:auto}
.legend{display:flex;gap:14px;flex-wrap:wrap;font-size:.82rem;color:var(--muted);margin-top:6px}
.legend i{display:inline-block;width:12px;height:12px;border-radius:3px;vertical-align:-1px;margin-right:4px}
footer.site{border-top:1px solid var(--line);background:var(--card);padding:18px 0;font-size:.85rem;color:var(--muted)}
footer.site a{margin-right:14px}
.breadcrumb{font-size:.82rem;color:var(--muted)}
.error{color:var(--ng);font-weight:700}
/* ===== ファインダーまわり ===== */
.layout{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:16px;align-items:start}
.layout .card{margin:0 0 16px}
@media (max-width:860px){.layout{grid-template-columns:1fr}}
.top-row{margin-top:-6px}
#finderBox{display:flex;justify-content:center;margin-top:6px}
#finder{display:block;border-radius:8px;touch-action:pan-y;cursor:ew-resize;background:#2a2f3a;max-width:100%}
.hint{margin:6px 0 4px}
.zoom-row{display:flex;align-items:center;gap:10px;margin-top:4px}
.zoom-row input[type=range]{flex:1;accent-color:var(--accent);height:28px}
.round{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--bg);color:var(--text);font-size:1.3rem;line-height:1;cursor:pointer;flex:0 0 auto}
.round:hover{border-color:var(--accent)}
.readout{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;margin-top:6px}
.readout .big{font-size:1.9rem;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:.01em}
.readout .sub{display:block;font-size:.84rem;color:var(--muted)}
.focal-input{width:120px}
.focal-input label{margin-top:0}
.actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.btn{border:1px solid var(--accent);background:var(--accent-weak);color:var(--accent);border-radius:8px;padding:8px 12px;font-size:.92rem;font-weight:600;cursor:pointer}
.btn:hover{background:var(--accent);color:#fff}
.inline input{flex:1;min-width:0}
.toggles{display:flex;flex-wrap:wrap;gap:4px 16px;margin-top:10px}
label.check{display:inline-flex;align-items:center;gap:6px;color:var(--text);margin:0;font-size:.88rem;cursor:pointer}
.bokeh-line{margin:0 0 6px;font-weight:600}
.card-title{font-size:1.05rem;margin:0 0 8px;padding-left:8px}
.card-title + .tablewrap{margin-bottom:14px}
.small-title{font-size:.9rem;color:var(--muted);margin:14px 0 6px}
.share{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:12px 0 4px}