/* ============ tokens (planetarium: deliberate single dark theme) ============ */
:root{
  --sky-zenith:#050814;
  --sky-horizon:#0d1731;
  --ink:#e8ecf7;
  --ink-dim:#9aa5c4;
  --gold:#f0c86e;
  --line:#7fd4e8;
  --panel:rgba(11,16,34,.9);
  --panel-edge:rgba(127,212,232,.22);
  --serif:"Hiragino Mincho ProN","Yu Mincho","BIZ UDMincho","Noto Serif JP","MS PMincho",serif;
  --sans:"Hiragino Kaku Gothic ProN","Yu Gothic","Noto Sans JP","Meiryo",sans-serif;
  --top:calc(12px + env(safe-area-inset-top));
}
html,body{height:100%;margin:0;background:#050814;}
#app{position:fixed;inset:0;overflow:hidden;font-family:var(--sans);color:var(--ink);
     -webkit-user-select:none;user-select:none;background:#050814;}
#sky{position:absolute;inset:0;touch-action:none;cursor:grab;display:block;}
#sky.drag{cursor:grabbing;}
#sky:focus-visible{outline:2px solid var(--gold);outline-offset:-2px;}

/* ひらがなモードの切りかえ: .ad = おとな用、.kd = こども用 */
body:not(.kids) .kd,body.kids .ad{display:none !important;}

/* ---- header plate ---- */
#plate{position:absolute;top:var(--top);left:14px;right:60px;pointer-events:none;z-index:5;
       text-shadow:0 1px 8px rgba(0,0,0,.8);}
#plate h1{font-family:var(--serif);font-weight:600;font-size:20px;letter-spacing:.14em;
          color:var(--gold);margin:0;}
#plate .sub{font-size:11.5px;color:var(--ink-dim);margin-top:3px;letter-spacing:.05em;
            font-variant-numeric:tabular-nums;line-height:1.55;}
#plate .sub b{color:var(--ink);font-weight:600;}

#helpBtn{position:absolute;top:var(--top);right:14px;z-index:6;width:36px;height:36px;border-radius:50%;
         border:1px solid var(--panel-edge);background:var(--panel);color:var(--ink-dim);
         font-size:16px;font-family:var(--serif);cursor:pointer;}
#helpBtn:focus-visible{outline:2px solid var(--gold);}

/* ---- quiz bar ---- */
#quizBar{position:absolute;top:calc(var(--top) + 76px);left:50%;transform:translateX(-50%);z-index:6;display:none;
         align-items:center;gap:10px;background:var(--panel);border:1px solid var(--gold);border-radius:999px;
         padding:7px 8px 7px 16px;font-size:14px;white-space:nowrap;max-width:calc(100vw - 20px);
         box-shadow:0 4px 24px rgba(0,0,0,.5);}
#quizBar.show{display:flex;}
#quizBar .qt{overflow:hidden;text-overflow:ellipsis;}
#quizBar b{color:var(--gold);font-family:var(--serif);font-size:15px;}
#quizBar .qn{color:var(--ink-dim);font-size:12px;margin-right:8px;font-variant-numeric:tabular-nums;}
#qHint{flex:0 0 auto;border:1px solid var(--panel-edge);background:transparent;color:var(--ink);
       border-radius:999px;padding:6px 12px;font-size:12px;cursor:pointer;font-family:var(--sans);}

/* ---- dock ---- */
#dock{position:absolute;left:0;right:0;bottom:0;z-index:6;display:flex;gap:8px;
      padding:10px 12px calc(10px + env(safe-area-inset-bottom));overflow-x:auto;
      -webkit-overflow-scrolling:touch;scrollbar-width:none;
      background:linear-gradient(to top, rgba(4,6,15,.92), rgba(4,6,15,0));
      -webkit-mask-image:linear-gradient(to right,#000 calc(100% - 36px),transparent);
      mask-image:linear-gradient(to right,#000 calc(100% - 36px),transparent);}
#dock.end{-webkit-mask-image:none;mask-image:none;}
#dock::-webkit-scrollbar{display:none;}
.pill{flex:0 0 auto;border:1px solid var(--panel-edge);background:var(--panel);color:var(--ink);
      border-radius:999px;padding:10px 15px;font-size:13px;font-family:var(--sans);cursor:pointer;
      letter-spacing:.03em;line-height:1;transition:border-color .15s, color .15s;}
.pill[aria-pressed="true"],.pill.on{border-color:var(--gold);color:var(--gold);}
.pill:focus-visible{outline:2px solid var(--gold);outline-offset:2px;}

/* ---- panels (時間・場所) ---- */
.panel{position:absolute;left:50%;transform:translateX(-50%);bottom:calc(64px + env(safe-area-inset-bottom));z-index:6;display:none;
       width:min(480px, calc(100vw - 24px));background:var(--panel);
       border:1px solid var(--panel-edge);border-radius:16px;padding:14px 16px;
       box-shadow:0 8px 32px rgba(0,0,0,.55);box-sizing:border-box;}
.panel.open{display:block;}
#tpNow{font-family:var(--serif);font-size:17px;color:var(--gold);text-align:center;
       letter-spacing:.06em;font-variant-numeric:tabular-nums;}
#tpSlider{width:100%;margin:12px 0 4px;accent-color:var(--gold);}
#tpHint{font-size:10.5px;color:var(--ink-dim);text-align:center;margin-bottom:10px;}
.tpRow{display:flex;gap:6px;justify-content:center;flex-wrap:wrap;}
.tpRow + .tpRow{margin-top:8px;}
.tbtn{border:1px solid var(--panel-edge);background:transparent;color:var(--ink);font-family:var(--sans);
      border-radius:8px;padding:8px 10px;font-size:12px;cursor:pointer;}
.tbtn.gold,.tbtn[aria-pressed="true"]{border-color:var(--gold);color:var(--gold);}
.tbtn:focus-visible{outline:2px solid var(--gold);}
#locPanel h2{font-family:var(--serif);font-size:14px;color:var(--gold);margin:0 0 10px;font-weight:600;
             letter-spacing:.1em;text-align:center;}
#locList{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:6px;}
#locList .tbtn{padding:10px 6px;}
#locHere{width:100%;margin-top:8px;}
#locNote{font-size:10.5px;color:var(--ink-dim);text-align:center;margin-top:8px;line-height:1.6;}

/* ---- info sheet ---- */
#sheet{position:absolute;left:50%;transform:translate(-50%,105%);bottom:0;z-index:7;
       width:min(560px,100vw);max-height:62vh;overflow-y:auto;box-sizing:border-box;
       background:var(--panel);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
       border:1px solid var(--panel-edge);border-bottom:none;border-radius:20px 20px 0 0;
       padding:18px 22px calc(20px + env(safe-area-inset-bottom));visibility:hidden;
       transition:transform .28s cubic-bezier(.3,1,.4,1),visibility 0s .28s;box-shadow:0 -8px 40px rgba(0,0,0,.6);
       -webkit-user-select:text;user-select:text;}
#sheet.open{transform:translate(-50%,0);visibility:visible;transition:transform .28s cubic-bezier(.3,1,.4,1);}
@media (prefers-reduced-motion:reduce){#sheet,#sheet.open{transition:none;}}
#sheetClose{position:absolute;top:10px;right:12px;width:32px;height:32px;border-radius:50%;
            border:none;background:rgba(255,255,255,.08);color:var(--ink-dim);font-size:15px;cursor:pointer;}
.sh-kana{font-size:11px;color:var(--ink-dim);letter-spacing:.35em;}
.sh-name{font-family:var(--serif);font-size:26px;color:var(--gold);letter-spacing:.1em;
         margin:2px 0 2px;font-weight:600;text-wrap:balance;}
.sh-en{font-family:var(--serif);font-style:italic;font-size:12px;color:var(--ink-dim);}
.sh-chips{display:flex;gap:6px;margin:10px 0 4px;flex-wrap:wrap;}
.chip{font-size:10.5px;padding:3px 10px;border-radius:999px;border:1px solid var(--panel-edge);
      color:var(--ink-dim);letter-spacing:.06em;}
.chip.season{border-color:rgba(240,200,110,.5);color:var(--gold);}
.chip.up{border-color:rgba(140,230,170,.5);color:#9fe6b8;}
.chip.warn{border-color:rgba(255,140,120,.6);color:#ffb3a3;}
.sh-story{font-size:14px;line-height:2;margin-top:10px;font-family:var(--serif);}
.sh-story.kids{font-size:16px;line-height:2.15;font-family:var(--sans);}
.sh-fun{margin-top:12px;padding:11px 13px;border-left:2px solid var(--gold);
        background:rgba(240,200,110,.06);font-size:12.5px;line-height:1.9;color:#e6d9b8;border-radius:0 8px 8px 0;}
.sh-fun b{color:var(--gold);font-family:var(--serif);letter-spacing:.1em;}
.sh-stars{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px;}
.star-chip{display:flex;align-items:center;gap:7px;border:1px solid var(--panel-edge);
           border-radius:10px;padding:7px 11px;font-size:11.5px;color:var(--ink);}
.star-chip .dot{width:9px;height:9px;border-radius:50%;box-shadow:0 0 6px currentColor;}
.star-chip small{color:var(--ink-dim);font-variant-numeric:tabular-nums;}
.sh-link{display:inline-block;margin-top:14px;font-size:12.5px;color:var(--line);text-decoration:none;
         border-bottom:1px solid rgba(127,212,232,.4);padding-bottom:1px;}
.sh-moon{display:flex;align-items:center;gap:14px;margin-top:10px;}
.sh-moon svg{flex:0 0 auto;}
.tempbar{margin-top:14px;}
.tempbar .bar{position:relative;height:10px;border-radius:5px;
  background:linear-gradient(90deg,#8fb0ff,#dfe6ff,#fff6e0,#ffc98a,#ff8a5c);}
.tempbar .mk{position:absolute;top:-4px;width:4px;height:18px;background:#fff;border-radius:2px;
             box-shadow:0 0 6px #fff;transform:translateX(-50%);}
.tempbar .lbl{display:flex;justify-content:space-between;font-size:10px;color:var(--ink-dim);margin-top:5px;}

/* ---- help overlay ---- */
#help{position:absolute;inset:0;z-index:9;background:rgba(3,5,12,.8);display:none;
      align-items:center;justify-content:center;padding:20px;overflow-y:auto;}
#help.open{display:flex;}
#helpCard{max-width:400px;background:var(--panel);border:1px solid var(--panel-edge);margin:auto;
          border-radius:20px;padding:26px 24px 20px;text-align:center;box-shadow:0 12px 48px rgba(0,0,0,.7);}
#helpCard h2{font-family:var(--serif);color:var(--gold);letter-spacing:.2em;font-size:20px;
             margin:0 0 4px;font-weight:600;}
#helpCard .tag{font-size:10.5px;color:var(--ink-dim);letter-spacing:.3em;}
#helpCard ul{list-style:none;padding:0;margin:18px 0;text-align:left;display:grid;gap:11px;}
#helpCard li{font-size:13px;line-height:1.7;display:flex;gap:12px;align-items:baseline;}
#helpCard li .k{flex:0 0 78px;color:var(--gold);font-family:var(--serif);font-size:12.5px;
                letter-spacing:.06em;text-align:right;}
#helpStart{margin-top:4px;border:1px solid var(--gold);background:rgba(240,200,110,.12);
           color:var(--gold);border-radius:999px;padding:11px 34px;font-size:14px;
           font-family:var(--serif);letter-spacing:.25em;cursor:pointer;}
#helpLinks{margin-top:18px;font-size:11.5px;line-height:2;color:var(--ink-dim);}
#helpLinks a{color:var(--ink-dim);text-decoration:none;border-bottom:1px solid rgba(154,165,196,.35);margin:0 5px;}

/* ---- toast ---- */
#toast{position:absolute;top:calc(var(--top) + 76px);left:50%;transform:translateX(-50%);z-index:8;
       background:var(--panel);border:1px solid var(--panel-edge);border-radius:12px;
       padding:10px 18px;font-size:12.5px;opacity:0;transition:opacity .3s;pointer-events:none;
       width:max-content;max-width:min(88vw,520px);box-sizing:border-box;text-align:center;line-height:1.6;
       box-shadow:0 4px 20px rgba(0,0,0,.5);}
#toast.show{opacity:1;}
body.quizzing #toast{top:calc(var(--top) + 128px);}

/* ---- 赤いライト（夜目を守る） ---- */
#redFilter{position:fixed;inset:0;z-index:50;background:#ff1a00;mix-blend-mode:multiply;
           pointer-events:none;display:none;}
body.red #redFilter{display:block;}

@media (max-width:420px){
  #plate h1{font-size:17px;}
  .sh-name{font-size:22px;}
}