/* 夜のみなとみらいそのものが画面。文字は左上の題と、上の切り替え・下の操作帯だけに絞り、光を邪魔しない */
:root{--ice:rgba(10,20,44,.66);--edge:rgba(140,190,255,.28);--fg:#e8f1ff;--dim:#9db4d8;--accent:#5fa8ff;
  --f-disp:'Shippori Mincho B1','Hiragino Mincho ProN','Yu Mincho',serif;
  --f-body:'Zen Kaku Gothic New','Hiragino Sans','Hiragino Kaku Gothic ProN','Yu Gothic UI','Meiryo',system-ui,sans-serif;
  --sb:env(safe-area-inset-bottom,0px);--st:env(safe-area-inset-top,0px);--sl:max(10px,env(safe-area-inset-left,0px));--sr:max(10px,env(safe-area-inset-right,0px))}
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:#03060c;color:var(--fg);font-family:var(--f-body);line-height:1.35;overflow:hidden;-webkit-tap-highlight-color:transparent;-webkit-text-size-adjust:100%}
canvas#c{position:fixed;inset:0;width:100%;height:100%;display:block;touch-action:none;outline:none;-webkit-user-select:none;user-select:none}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.hidden{display:none!important}
.glass{background:var(--ice);border:1px solid var(--edge);border-radius:12px;backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);box-shadow:0 8px 30px rgba(0,0,0,.45),inset 0 1px 0 rgba(255,255,255,.08)}
.small{font-size:11.5px;color:var(--dim)}

/* 読み込み */
.center{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);width:min(520px,calc(100vw - 24px));padding:16px 20px 12px;z-index:30}
.title{font-size:14px;color:var(--dim);letter-spacing:.06em;line-height:1.25}
.title b{display:block;font-family:var(--f-disp);font-weight:600;font-size:30px;color:#fff;margin-top:2px;letter-spacing:.04em;text-shadow:0 0 18px rgba(95,168,255,.55)}
.lead{font-size:14px;color:#d7e4fb;margin:8px 0 8px}
.bar{height:5px;border-radius:3px;background:rgba(255,255,255,.1);overflow:hidden;margin:6px 0 6px}
.bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,#2a6cff,#8fd0ff);transition:width .25s}

/* はじめの案内: 夜景の上に置いた青いガラス板 */
#start{position:fixed;inset:0;z-index:25;display:flex;align-items:center;justify-content:center;padding:calc(var(--st) + 12px) var(--sr) calc(var(--sb) + 12px) var(--sl);background:radial-gradient(ellipse at center,rgba(0,0,0,.1),rgba(0,0,0,.55));transition:opacity .45s}
#start.out{opacity:0;pointer-events:none}
.scard{position:relative;width:min(760px,100%);max-height:100%;overflow-x:hidden;overflow-y:auto;-webkit-overflow-scrolling:touch;color:#f2f8ff;border-radius:20px;padding:16px 22px 14px;
  background:linear-gradient(135deg,rgba(14,34,72,.64),rgba(6,14,32,.52) 45%,rgba(20,52,110,.5));border:1px solid rgba(170,210,255,.42);
  -webkit-backdrop-filter:blur(22px) saturate(150%);backdrop-filter:blur(22px) saturate(150%);
  box-shadow:0 30px 80px rgba(0,0,0,.55),inset 0 1px 0 rgba(215,235,255,.55),inset 0 0 40px rgba(80,150,255,.14);text-shadow:0 1px 2px rgba(0,0,0,.6)}
.scard::before{content:"";position:absolute;inset:-40% -10% auto -10%;height:60%;pointer-events:none;background:linear-gradient(170deg,rgba(220,238,255,.16),rgba(220,238,255,0) 60%);transform:rotate(-4deg)}
.shead{display:flex;align-items:center;gap:10px}
.stag{font-size:11px;letter-spacing:.3em;color:#9fd2ff;font-weight:700;min-width:0}
.sbadge,.unofficial{font-size:11px;font-weight:700;white-space:nowrap;flex:none;padding:1px 8px;border-radius:4px;background:linear-gradient(rgba(255,170,198,.95),rgba(246,120,160,.92));border:1px solid rgba(255,214,226,.9);color:#fff;letter-spacing:.06em;text-shadow:0 1px 1px rgba(150,30,70,.45);box-shadow:0 0 14px rgba(255,140,180,.4)}
#startTitle{font-family:var(--f-disp);font-weight:600;font-size:clamp(25px,6.6vw,46px);overflow-wrap:anywhere;line-height:1.12;margin:4px 0 2px;letter-spacing:.05em;text-wrap:balance;text-shadow:0 1px 2px rgba(0,0,0,.6),0 0 24px rgba(95,168,255,.5)}
#startTitle small{display:block;font-family:var(--f-body);font-size:clamp(13px,1.8vw,15px);font-weight:500;letter-spacing:.12em;color:#bcd9ff;margin-bottom:2px}
.slead{margin:0;font-size:clamp(14px,2.2vw,17px);color:#e2efff}
.sfacts{display:flex;flex-wrap:wrap;gap:4px 14px;margin:8px 0 12px;font-size:13px;color:#b9d6ff;font-variant-numeric:tabular-nums}
.schoice{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.sbtn{font:inherit;text-align:left;cursor:pointer;border-radius:12px;padding:12px 14px;color:#f2f8ff;display:flex;flex-direction:column;gap:3px;
  background:rgba(210,232,255,.1);border:1px solid rgba(180,215,255,.36);box-shadow:inset 0 1px 0 rgba(220,238,255,.35);text-shadow:inherit;transition:transform .15s,box-shadow .15s}
.sbtn b{font-family:var(--f-disp);font-weight:600;font-size:20px;letter-spacing:.06em}
.sbtn small{font-size:12.5px;color:#cfe3ff}
.sbtn.primary{color:#06224a;text-shadow:0 1px 0 rgba(255,255,255,.45);background:linear-gradient(rgba(225,242,255,.97),rgba(130,195,255,.92));border-color:rgba(235,246,255,.9);
  box-shadow:0 0 32px rgba(90,170,255,.55),0 4px 0 rgba(30,80,160,.45),0 10px 24px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.95)}
.sbtn.primary small{color:#173e72}
.sbtn:hover{transform:translateY(-2px)}
.sbtn:focus-visible{outline:3px solid #9fd2ff;outline-offset:2px}
.sops{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}
.sops section{padding:8px 10px;border-radius:12px;background:rgba(210,232,255,.07);border:1px solid rgba(180,215,255,.18)}
.sops h3{margin:0 0 4px;font-size:13px;font-weight:500;color:#a9d4ff;letter-spacing:.06em}
.orow{display:flex;align-items:center;gap:8px;margin:3px 0;font-size:13.5px}
.orow kbd{display:inline-block;flex:none;min-width:7.4em;text-align:center;padding:2px 8px;border-radius:6px;font:inherit;font-size:12px;font-weight:500;color:#06224a;text-shadow:none;
  background:linear-gradient(rgba(245,250,255,.95),rgba(200,226,255,.84));border:1px solid rgba(235,246,255,.9);box-shadow:0 3px 8px rgba(0,0,0,.3)}
.sfoot{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:2px 14px;margin:10px 0 0;padding-top:8px;border-top:1px solid rgba(180,215,255,.2)}
.sfoot p{margin:0;font-size:12.5px;line-height:1.45;color:#e2efff;text-wrap:pretty}
.sfoot b{color:#fff;font-weight:500}
.sorg{white-space:nowrap}
.sorg a,#sources a{color:#9fd2ff;text-decoration:underline;text-underline-offset:3px}
.snote{margin:4px 0 0;font-size:11px;line-height:1.5;color:#b9d6ff;opacity:.92}

/* 画面の部品 */
#hud{position:fixed;inset:0;pointer-events:none;z-index:10}
#hud .glass,#hud button,#hud a,#hud input{pointer-events:auto}
#topbar{position:fixed;left:var(--sl);right:var(--sr);top:calc(var(--st) + 10px);display:flex;justify-content:space-between;gap:8px;align-items:flex-start}
#brand h1{font-family:var(--f-disp);font-weight:600;font-size:clamp(18px,2.6vw,26px);letter-spacing:.05em;line-height:1.15;margin:0;color:#fff;text-shadow:0 0 16px rgba(95,168,255,.45),0 1px 3px rgba(0,0,0,.8)}
#brand .unofficial{display:inline-block;vertical-align:5px;margin-left:8px;font-family:var(--f-body)}
#brand .sub{font-size:11.5px;color:var(--dim);margin-top:2px;letter-spacing:.05em;text-shadow:0 1px 3px rgba(0,0,0,.9)}
.pill{padding:3px;border-radius:999px;display:flex;align-items:center;gap:2px;font-size:13px;flex:none}
.btns button{font:inherit;font-size:13px;line-height:1;color:var(--fg);background:transparent;border:0;padding:8px 11px;border-radius:999px;cursor:pointer;white-space:nowrap}
.btns button:hover{background:rgba(255,255,255,.1)}
.btns button.tab.on{background:rgba(95,168,255,.35);color:#fff}
.sep{width:1px;height:16px;background:rgba(255,255,255,.18);margin:0 2px}
/* 時代のボタン (edc_eras。Tagajo の時期ボタンと同じ考え: 小さな丸い札、押したのが濃い) と、長い字・短い字の出し分け */
.tools{display:flex;gap:6px;align-items:flex-start;justify-content:flex-end;flex-wrap:wrap}
.eras button{font-size:12.5px;padding:7px 10px;color:var(--dim)}
.eras button.on{background:rgba(255,206,120,.34);color:#fff;font-weight:600}
.s{display:none}
#srcNotes{max-width:none;line-height:1.4;white-space:nowrap}
#srcNotes #eraNote{display:none}   /* 時代ごとの断りは左上の副題と「推定の一覧」の窓に (edc_ground) */
#sources{white-space:nowrap;max-width:calc(100vw - 20px);overflow:hidden}
#srcNotes button{font:inherit;color:var(--fg);background:rgba(255,255,255,.1);border:1px solid var(--edge);border-radius:6px;padding:1px 8px;cursor:pointer}
#srcNotes button:disabled{opacity:.5;cursor:default}
#btnRetry{font:inherit;font-size:13px;color:var(--fg);background:rgba(255,255,255,.1);border:1px solid var(--edge);border-radius:8px;padding:6px 14px;margin-top:8px;cursor:pointer}
#btnRetry:disabled{opacity:.5;cursor:default}
/* 推定の一覧の窓 (edc_fix3) */
#estNotes{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);width:min(620px,calc(100vw - 20px));max-height:min(74vh,640px);overflow:auto;padding:12px 16px 14px;z-index:30;font-size:12.5px;line-height:1.6}
#estNotes .estHead{display:flex;justify-content:space-between;align-items:center;position:sticky;top:-12px;padding:4px 0 6px;background:inherit}
#estNotes .estHead b{font-size:15px;color:#fff}
#estClose{font:inherit;font-size:18px;line-height:1;color:var(--fg);background:rgba(255,255,255,.1);border:1px solid var(--edge);border-radius:8px;padding:4px 10px;cursor:pointer}
#estNotes h3{font-size:13px;margin:10px 0 2px;color:#ffe2a8}
#estNotes ul{margin:0;padding-left:1.2em}
#estNotes li{margin:2px 0}
#estNotes p{margin:4px 0;color:var(--dim)}
#walkbar{position:fixed;left:50%;bottom:calc(var(--sb) + 30px);transform:translateX(-50%);width:min(720px,calc(100vw - 20px));padding:6px 12px 5px}
#walkbar .row{display:flex;align-items:center;gap:10px}
#walkbar button{font:inherit;font-size:14px;color:var(--fg);background:rgba(255,255,255,.08);border:1px solid var(--edge);border-radius:8px;padding:6px 10px;cursor:pointer;min-width:42px}
#prog{flex:1;accent-color:#5fa8ff;height:20px;margin:0}
.names{justify-content:space-between;font-size:10.5px;color:var(--dim);margin-top:2px;padding:0 50px}
.names span{white-space:nowrap}
.names span.on{color:#ffe2a8;font-weight:700}   /* edc_walk: いまの地点 */
#walkbar button:disabled,#btnWalk:disabled{opacity:.45;cursor:default}
#spot{position:fixed;left:50%;bottom:calc(var(--sb) + 92px);transform:translateX(-50%);width:min(680px,calc(100vw - 20px));padding:8px 14px;font-size:13px;display:flex;gap:10px;align-items:baseline}
#spot b{color:#bfe0ff;white-space:nowrap;font-size:14px}
#spot span{color:#dbe7fb}
#airgo{position:fixed;left:50%;bottom:calc(var(--sb) + 50px);transform:translateX(-50%);display:flex;align-items:center;gap:2px;padding:3px 4px;border-radius:999px;max-width:calc(100vw - 16px);overflow-x:auto;scrollbar-width:none}
#airgo::-webkit-scrollbar{display:none}
#airgo .lbl{font-size:11px;color:var(--dim);padding:0 6px 0 8px;white-space:nowrap}
#airgo button{font:inherit;font-size:13px;line-height:1;color:var(--fg);background:transparent;border:0;padding:8px 11px;border-radius:999px;cursor:pointer;white-space:nowrap}
#airgo button:hover{background:rgba(255,255,255,.1)}
#airgo button.hot{color:#ffd1e0}
/* 案内ツアー (edc_tour) */
#airgo button.tourbtn{color:#fff;background:rgba(214,74,110,.55);font-weight:700;margin-right:2px}
#airgo button.tourbtn:hover{background:rgba(214,74,110,.75)}
#tourPanel{position:fixed;right:12px;bottom:calc(var(--sb) + 96px);width:min(380px,calc(100vw - 20px));padding:9px 12px 10px;font-size:13px;line-height:1.6;z-index:12}
#tourPanel .tHead{display:flex;justify-content:space-between;align-items:baseline;gap:8px}
#tourPanel .tHead b{color:#ffe2a8;font-size:14px}
#tourPanel .tHead span{color:var(--dim);font-size:11px;white-space:nowrap}
#tourPanel p{margin:4px 0 8px;color:#e8eefb}
#tourPanel .tBtns{display:flex;gap:4px}
#tourPanel .tBtns button{flex:1;font:inherit;font-size:12px;color:var(--fg);background:rgba(255,255,255,.08);border:1px solid var(--edge);border-radius:8px;padding:6px 4px;cursor:pointer}
#tourPanel .tBtns button:hover{background:rgba(255,255,255,.18)}
body.touring #spot,body.touring #airinfo{display:none}
#airinfo{position:fixed;left:50%;bottom:calc(var(--sb) + 27px);transform:translateX(-50%);white-space:nowrap;max-width:calc(100vw - 20px);overflow:hidden;text-overflow:ellipsis;text-shadow:0 1px 3px rgba(0,0,0,.9)}
#sources{position:fixed;right:var(--sr);bottom:calc(var(--sb) + 6px);display:flex;gap:14px;font-size:10.5px;text-shadow:0 1px 3px rgba(0,0,0,.9)}
#sources b{color:var(--fg);font-weight:500}
.noscript{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);margin:0;padding:12px 16px;background:var(--ice);border:1px solid var(--edge);border-radius:8px;font-size:14px}

@media (pointer:coarse){.sops .op-mouse{display:none}.sops{grid-template-columns:1fr}}
@media (max-width:640px){
  .schoice{grid-template-columns:1fr}.sops{grid-template-columns:1fr}.scard{padding:12px 14px}.sbtn b{font-size:18px}.stag{font-size:10px;letter-spacing:.14em}
  .title b{font-size:24px}.lead{font-size:13.5px}
  #topbar{flex-direction:column;align-items:stretch;gap:6px}
  #brand .sub{display:none}
  .btns{align-self:flex-end}
  .tools{align-self:flex-end}
  .l{display:none}.s{display:inline}
  .eras button{padding:7px 8px;font-size:12px}
  #srcNotes{font-size:0;max-width:none}   /* スマホ: 長い断り書きの字は隠し、「推定の一覧」のボタンと失敗の知らせ・やり直しだけ出す (edc_fix3) */
  #srcNotes button,#srcNotes b{font-size:11px}
  #walkbar .names{display:none}
  #walkbar{bottom:calc(var(--sb) + 54px);padding:5px 6px}   /* edc_walk: 出典の 2 行に重ならないように (行き先の帯と同じ高さ) */
#walkbar .row{gap:4px}#walkbar button{white-space:nowrap;padding:6px 6px;min-width:0;font-size:13px}   /* edc_fix5: 速さ (×1/×2/×0.5) も携帯で出す */
  #spot{bottom:calc(var(--sb) + 104px);font-size:12px;flex-direction:column;gap:2px}
  #airgo{bottom:calc(var(--sb) + 54px)}
  #tourPanel{right:50%;transform:translateX(50%);bottom:calc(var(--sb) + 110px);font-size:12px;line-height:1.5}   /* edc_fix4: 110px の後に 90px で上書きしていたのを一つに */
  #airinfo{font-size:10.5px;bottom:calc(var(--sb) + 26px)}
  #sources{left:var(--sl);right:var(--sr);justify-content:center;font-size:9.5px;gap:10px;bottom:calc(var(--sb) + 4px)}
  #sources{white-space:normal;flex-wrap:wrap;row-gap:1px;overflow:visible}   /* スマホ: 2 行に折り返し、行き先の帯をその上へ (edc_ground) */
  #airinfo{display:none !important}
  #sources span:last-child{display:none}
}
/* 背の低い画面 (スマホを横にしたとき): 案内を詰めて、二つの始め方と操作がひと目で入るように */
@media (max-height:520px){
  #start{padding-top:calc(var(--st) + 6px);padding-bottom:calc(var(--sb) + 6px)}
  .scard{padding:10px 16px 8px}
  #startTitle{font-size:26px;margin:2px 0 0}#startTitle small{font-size:12px}
  .slead{font-size:13px}.sfacts{margin:4px 0 6px;font-size:12px}.snote{display:none}
  .sbtn{padding:8px 12px}.sbtn b{font-size:17px}.sbtn small{font-size:11.5px}
  .sops{margin-top:6px}.orow{margin:1px 0;font-size:12.5px}
  .sfoot{margin-top:6px;padding-top:5px}.sfoot p{font-size:11.5px}
  #airgo{bottom:calc(var(--sb) + 44px)}#airinfo{display:none}
}
@media (prefers-reduced-motion:reduce){.sbtn,#start{transition:none}}

/* 古いブラウザ (Internet Explorer など) への案内 (2026-11-05)。
   @supports を知らないブラウザでだけ表に出る。新しいブラウザでは下の @supports で消える */
.oldbrowser{position:fixed;top:0;right:0;bottom:0;left:0;z-index:2147483647;overflow:auto;box-sizing:border-box;padding:56px 20px;background:#ffffff;color:#111111;font-family:"Yu Gothic","Meiryo",sans-serif;font-size:18px;line-height:1.8;text-align:center}
.oldbrowser .ob-box{max-width:640px;margin:0 auto}
.oldbrowser p{margin:0 0 12px}
.oldbrowser .ob-t{font-size:26px;font-weight:bold;margin:0 0 20px}
.oldbrowser .ob-u{display:inline-block;margin-top:8px;padding:8px 14px;border:1px solid #9aa3b5;background:#f1f3f7;font-family:Consolas,"MS Gothic",monospace;font-size:20px}
@supports (display:grid){.oldbrowser{display:none !important}}