/* HATOLAND — ゲーム紹介ページ（about.html）
   配色・書体はゲーム本体（css/main.css）に合わせる。本体のCSSは読み込まない（独立） */
:root{
  --sky:#aee3ff; --sky-deep:#7ec8ff; --cream:#fff9ec; --navy:#2c3a55;
  --orange:#ff9b3d; --orange-deep:#f27d1a; --pink:#ff8fae; --green:#7fd08a;
  --ink-dim:rgba(44,58,85,.78);
  --shadow:0 6px 0 rgba(44,58,85,.18);
  --wrap:46rem;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;color:var(--navy);
  font-family:'M PLUS Rounded 1c','Hiragino Maru Gothic ProN',system-ui,sans-serif;
  background:linear-gradient(180deg,#aee3ff 0%,#dff3ff 55%,#fff4de 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
b{font-weight:800}
.pc{display:none}
@media (min-width:700px){.pc{display:inline}}

/* ---- 背景：ゲーム本体（?bg=1） ---- */
#stage{position:fixed;inset:0;z-index:0;pointer-events:none}
#bg{position:absolute;inset:0;width:100%;height:100%;border:0;display:block;
  opacity:0;transition:opacity 1.1s ease}
#bg.on{opacity:1}
/* ヒーローでは素通し。本文に入ったら（body.calm）クリーム色のベールで背景を静かにする。
   背景は動きつづけるが、文字の後ろで忙しくならない程度に沈める */
/* --night は js/about.js がスクロール量から 0(昼)〜1(夜) で入れる。夜はクリームでなく紺のベールにして濁らせない */
#veil{position:absolute;inset:0;background:rgba(255,249,236,.6);opacity:0;transition:opacity .9s ease}
body.calm #veil{opacity:calc(1 - var(--night,0))}
#veil2{position:absolute;inset:0;background:rgba(16,22,40,.42);opacity:0;transition:opacity .9s ease}
body.calm #veil2{opacity:var(--night,0)}
body.calm #bg.on{opacity:.9}

/* ---- 読み込みの演出（ゲーム本体の #loader と同じ意匠） ---- */
#pageLoad{position:fixed;inset:0;z-index:40;display:flex;flex-direction:column;align-items:center;
  justify-content:center;gap:14px;background:linear-gradient(#aee3ff,#fdf3d8);
  transition:opacity .5s ease}
#pageLoad.done{opacity:0;pointer-events:none}
#pageLoad .l-bird{width:112px;height:auto;animation:bob 1.05s ease-in-out infinite}
#pageLoad .l-text{font-weight:800;font-size:16px;color:var(--navy);letter-spacing:.06em}
#pageLoad .l-dots{display:flex;gap:9px}
#pageLoad .l-dots span{width:11px;height:11px;border-radius:50%;background:var(--orange);
  border:2px solid var(--navy);animation:ldot .9s ease-in-out infinite}
#pageLoad .l-dots span:nth-child(2){animation-delay:.15s}
#pageLoad .l-dots span:nth-child(3){animation-delay:.3s}
@keyframes bob{0%,100%{transform:translateY(0) rotate(-4deg)}50%{transform:translateY(-12px) rotate(4deg)}}
@keyframes ldot{0%,100%{transform:translateY(0)}40%{transform:translateY(-10px)}}
@media (prefers-reduced-motion:reduce){#pageLoad .l-bird,#pageLoad .l-dots span{animation:none}}

.skip{position:absolute;left:-999px;top:8px;z-index:50;background:var(--navy);color:#fff;
  padding:8px 14px;border-radius:999px;font-weight:800}
.skip:focus{left:8px}

/* ---- 上部バー ---- */
#top{position:fixed;top:0;left:0;right:0;z-index:20;display:flex;align-items:center;
  justify-content:space-between;padding:calc(10px + env(safe-area-inset-top)) 14px 10px;
  pointer-events:none}
#top>*{pointer-events:auto}
.brand{display:flex;align-items:center;gap:8px;text-decoration:none;
  background:rgba(255,249,236,.9);border:3px solid var(--navy);border-radius:999px;
  padding:5px 14px 5px 8px;box-shadow:0 4px 0 rgba(44,58,85,.18);
  font-family:'Fredoka','M PLUS Rounded 1c',sans-serif;font-weight:600;font-size:16px;letter-spacing:.03em}
.brand-bird{width:28px;height:auto}
.play{text-decoration:none;background:var(--orange);color:#fff;border:3px solid var(--navy);
  border-radius:999px;padding:8px 20px;font-weight:800;font-size:15px;
  box-shadow:0 4px 0 rgba(44,58,85,.25);text-shadow:0 2px 0 rgba(0,0,0,.12);
  transition:transform .08s}
.play:active{transform:translateY(3px);box-shadow:0 1px 0 rgba(44,58,85,.25)}
.tools{display:flex;align-items:center;gap:8px}
/* 背景のオン/オフ。オフのときは単色背景（html.no-bg） */
.bgtog{font-family:inherit;font-weight:800;font-size:13px;color:var(--navy);cursor:pointer;
  background:rgba(255,249,236,.9);border:3px solid var(--navy);border-radius:999px;padding:8px 14px;
  box-shadow:0 4px 0 rgba(44,58,85,.18);transition:transform .08s}
.bgtog:active{transform:translateY(3px);box-shadow:0 1px 0 rgba(44,58,85,.18)}
.bgtog span{color:#2a9d5c}
.bgtog[aria-pressed="false"] span{color:#c8431f}
html.no-bg body{background:#dff1fb}
html.no-bg #stage,html.no-bg .live{display:none}
/* スマホ幅: 上部バーを小さくし、ヒーローの上の余白を広げて詰まらないようにする */
@media (max-width:700px){
  #top{padding:calc(8px + env(safe-area-inset-top)) 10px 8px}
  .brand{font-size:14px;padding:4px 12px 4px 7px;border-width:2.5px}
  .brand-bird{width:24px}
  .play{font-size:14px;padding:7px 16px;border-width:2.5px}
  .bgtog{font-size:12px;padding:7px 11px;border-width:2.5px}
  .tools{gap:6px}
  /* .hero / .scrollcue / .live のスマホ用調整は、基本定義より後ろ（ヒーロー節の末尾）に置く */
}

/* ---- 章ナビ（PCのみ。右端の点） ---- */
#chapters{display:none}
@media (min-width:1080px){
  #chapters{display:flex;flex-direction:column;gap:10px;position:fixed;right:18px;top:50%;
    transform:translateY(-50%);z-index:20}
  #chapters a{position:relative;width:14px;height:14px;border-radius:50%;background:#fff;
    border:2.5px solid var(--navy);opacity:.55;transition:opacity .2s,transform .2s}
  #chapters a span{position:absolute;right:22px;top:50%;transform:translateY(-50%);
    white-space:nowrap;font-size:12px;font-weight:800;background:var(--cream);
    border:2px solid var(--navy);border-radius:999px;padding:3px 10px;opacity:0;
    pointer-events:none;transition:opacity .15s}
  #chapters a:hover span,#chapters a:focus-visible span{opacity:1}
  #chapters a.on{opacity:1;background:var(--orange);transform:scale(1.25)}
}

/* ---- 共通 ---- */
main{position:relative;z-index:2}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 clamp(16px,4.5vw,28px)}
section{padding:10vh 0}
section:last-of-type{padding-bottom:16vh}
.card{background:var(--cream);border:3px solid var(--navy);border-radius:26px;
  box-shadow:var(--shadow);padding:clamp(22px,5vw,38px);
  opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.9,.3,1)}
.card.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.card{opacity:1;transform:none;transition:none}}
.card.center{text-align:center}
.lead{margin:0 0 6px;font-family:'Fredoka','M PLUS Rounded 1c',sans-serif;font-weight:600;
  font-size:13px;letter-spacing:.22em;color:var(--orange-deep)}
.mode .lead{color:var(--c,var(--orange-deep))}
.mode.night .lead{color:#1b8fb8}
h2{margin:0 0 16px;font-size:clamp(26px,6vw,34px);font-weight:800;line-height:1.2;letter-spacing:.02em}
h2::after{content:"";display:block;width:72px;height:6px;margin-top:10px;border-radius:99px;
  background:linear-gradient(90deg,var(--c,var(--orange)),var(--pink))}
.center h2::after{margin-left:auto;margin-right:auto}
h3{margin:22px 0 8px;font-size:17px;font-weight:800;color:var(--orange-deep)}
h3::before{content:"◆ ";font-size:12px}
p{margin:0 0 12px;font-size:15px;line-height:1.95;color:var(--ink-dim);font-weight:500}
p:last-child{margin-bottom:0}
.mode-lead{font-size:16px;color:var(--navy);font-weight:700}
.feat{list-style:none;margin:0 0 12px;padding:0}
.feat li{position:relative;padding-left:1.35em;margin-bottom:8px;font-size:14.5px;line-height:1.85;
  color:var(--ink-dim);font-weight:500}
.feat li::before{content:"";position:absolute;left:.15em;top:calc(.925em - 6.5px);width:9px;height:9px;border-radius:50%;
  background:var(--c,var(--orange));border:2px solid var(--navy)}
.cta{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;align-items:center;margin-top:20px}
.btn{display:inline-block;text-decoration:none;background:#fff;border:3px solid var(--navy);
  border-radius:999px;padding:12px 30px;font-size:17px;font-weight:800;box-shadow:var(--shadow);
  transition:transform .08s}
.btn:active{transform:translateY(4px);box-shadow:0 2px 0 rgba(44,58,85,.18)}
.btn.primary{background:var(--orange);color:#fff;text-shadow:0 2px 0 rgba(0,0,0,.12)}
.btn.big{padding:15px 40px;font-size:20px}
.btn.ghost{background:rgba(255,249,236,.85)}

/* ---- ヒーロー ---- */
.hero{min-height:100svh;display:flex;flex-direction:column;justify-content:center;align-items:center;
  text-align:center;padding:calc(64px + env(safe-area-inset-top)) 0 12vh;position:relative}
.eyebrow{display:inline-block;margin:0 0 14px;background:var(--navy);color:#fff;border-radius:999px;
  padding:6px 16px;font-size:13px;font-weight:800;letter-spacing:.08em}
.logo{margin:0;line-height:.95;
  font-family:'Fredoka','M PLUS Rounded 1c',sans-serif;font-weight:600;letter-spacing:.01em}
/* 縁取り: Fredokaは600のみ。paint-orderで線を字の下に敷く（本体と同じ扱い） */
.logo .l0{display:block;font-size:clamp(22px,6vw,36px);letter-spacing:.16em;padding-left:.16em;
  color:var(--orange);-webkit-text-stroke:4px var(--navy);paint-order:stroke fill;
  text-shadow:0 3px 0 var(--navy);margin-bottom:-2px}
.logo .l1{display:block;font-size:clamp(48px,13vw,104px);line-height:.9;color:#fff;
  -webkit-text-stroke:7px var(--navy);paint-order:stroke fill;
  text-shadow:0 7px 0 var(--navy),0 11px 0 rgba(44,58,85,.25)}
.tagline{margin:26px 0 8px;font-size:clamp(15px,4.4vw,24px);white-space:nowrap;font-weight:800;color:var(--navy);
  background:rgba(255,249,236,.88);display:inline-block;padding:6px 18px;border-radius:14px}
.hero .sub{max-width:36rem;margin:0 auto;font-size:14.5px;line-height:1.9;color:var(--navy);font-weight:700;
  background:rgba(255,249,236,.82);padding:10px 16px;border-radius:14px}
.live{display:inline-flex;align-items:center;gap:8px;margin:22px 0 0;font-size:12.5px;font-weight:800;
  text-align:left;line-height:1.5;
  color:var(--navy);background:rgba(255,255,255,.8);border:2px solid var(--navy);border-radius:999px;
  padding:6px 14px;opacity:0;transition:opacity .6s}
.live.on{opacity:1}
.live .dot{flex:0 0 9px;width:9px;height:9px;border-radius:50%;background:#e8452c;box-shadow:0 0 0 3px rgba(232,69,44,.25);
  animation:blink 1.4s ease-in-out infinite}
@keyframes blink{50%{opacity:.35}}
.scrollcue{position:absolute;bottom:calc(20px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:6px;
  font-family:'Fredoka',sans-serif;font-size:11px;letter-spacing:.2em;color:var(--navy);opacity:.7}
.scrollcue i{width:2px;height:28px;background:var(--navy);border-radius:2px;animation:cue 1.6s ease-in-out infinite}
@keyframes cue{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}
  51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
/* スマホ幅: 固定ヘッダーの下にロゴが潜らないよう上余白を広げる。
   基本定義と同じ詳細度なので、必ず上の .hero / .scrollcue / .live より後ろに置くこと（前に置くと上書きされて効かない） */
@media (max-width:700px){
  .hero{padding:calc(104px + env(safe-area-inset-top)) 0 7vh;justify-content:flex-start}
  /* 中身が画面の高さを超えると、下に絶対配置した SCROLL が重なるので、スマホでは流れの中に置く */
  .scrollcue{position:static;transform:none;margin-top:38px}
  .live{font-size:12px;padding:7px 14px;max-width:min(92vw,26rem)}
}
@media (prefers-reduced-motion:reduce){.scrollcue i,.live .dot{animation:none}}

/* ---- どんなゲーム：モード一覧・概要表 ---- */
.modes{list-style:none;margin:14px 0 18px;padding:0;display:grid;gap:10px}
@media (min-width:600px){.modes{grid-template-columns:1fr 1fr}}
.modes a{display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;column-gap:10px;
  align-items:center;text-decoration:none;background:#fff;border:2.5px solid var(--navy);
  border-radius:16px;padding:10px 14px;box-shadow:0 4px 0 rgba(44,58,85,.14);
  transition:transform .12s}
.modes a:hover{transform:translateY(-2px)}
.modes i{grid-row:1/3;width:14px;height:14px;border-radius:50%;background:var(--c);border:2.5px solid var(--navy)}
.modes b{font-size:16px}
.modes span{font-size:12px;color:var(--ink-dim);font-weight:700}
.spec dl{margin:0;display:grid;gap:6px}
.spec dl>div{display:grid;grid-template-columns:7em 1fr;gap:8px;padding:8px 0;
  border-top:2px dashed rgba(44,58,85,.22);font-size:14px}
.spec dt{font-weight:800}
.spec dd{margin:0;font-weight:600;color:var(--ink-dim)}

/* ---- モード節：本文と画面イメージ ---- */
.cols{display:grid;gap:16px;align-items:start}
@media (min-width:760px){.cols{grid-template-columns:1.25fr 1fr}}
.shot{margin:0}
.shot img{display:block;width:100%;height:auto;border:3px solid var(--navy);border-radius:16px;
  box-shadow:0 5px 0 rgba(44,58,85,.18);background:#cde9f8}
.shot figcaption{margin-top:6px;font-size:12px;font-weight:700;color:var(--ink-dim);text-align:center}

table{width:100%;border-collapse:collapse;margin:16px 0 4px;font-size:14px}
caption{text-align:left;font-weight:800;padding:0 0 6px;color:var(--orange-deep)}
th,td{padding:8px 8px;border-top:2px dashed rgba(44,58,85,.22);text-align:left;vertical-align:top;
  line-height:1.6}
th{font-size:12.5px;color:var(--ink-dim)}
td:first-child{white-space:nowrap;font-weight:800}
.tur td i{display:inline-block;width:11px;height:11px;border-radius:50%;background:var(--c);
  border:2px solid var(--navy);margin-right:6px;vertical-align:-1px}
kbd{display:inline-block;min-width:1.6em;padding:1px 6px;margin:0 2px;border:2px solid var(--navy);
  border-bottom-width:4px;border-radius:7px;background:#fff;font-family:'Fredoka','M PLUS Rounded 1c',sans-serif;
  font-size:12.5px;font-weight:600;text-align:center}
.order{margin-top:14px;padding:12px 14px;border:2.5px dashed var(--orange);border-radius:16px;
  background:rgba(255,255,255,.72);font-size:14px}

/* ---- 操作デモ ---- */
.demo{margin:16px 0 8px;padding:14px;border:2.5px dashed var(--orange);border-radius:18px;
  background:rgba(255,255,255,.75)}
.demo-t{margin:0 0 10px;font-size:13px;font-weight:800;color:var(--orange-deep)}
#demoCv{display:block;width:100%;height:auto;border:3px solid var(--navy);border-radius:14px;
  background:linear-gradient(#aee3ff,#eaf7ff);touch-action:none}
.demo-row{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:center;margin-top:12px}
.dbtn{width:96px;height:96px;border-radius:50%;background:var(--orange);border:4px solid var(--navy);
  box-shadow:0 6px 0 rgba(44,58,85,.3);display:flex;flex-direction:column;align-items:center;
  justify-content:center;color:#fff;font-weight:800;font-size:16px;text-shadow:0 2px 0 rgba(0,0,0,.15);
  cursor:pointer;user-select:none;-webkit-user-select:none;touch-action:none;transition:transform .06s}
.dbtn .sub{font-size:11px;opacity:.9}
.dbtn.on{transform:translateY(5px) scale(.97);box-shadow:0 1px 0 rgba(44,58,85,.3);background:var(--orange-deep)}
.dbtn:focus-visible{outline:3px solid var(--sky-deep);outline-offset:3px}
.dhint{margin:0;font-size:13.5px;font-weight:700;color:var(--navy)}
.dnote{margin:10px 0 0;font-size:11.5px;color:var(--ink-dim);font-weight:600}

/* ---- FAQ ---- */
.faq{margin:0}
.faq dt{font-weight:800;font-size:15.5px;padding:12px 0 4px;border-top:2px dashed rgba(44,58,85,.22)}
.faq dt::before{content:"Q. ";color:var(--orange-deep)}
.faq dd{margin:0 0 10px;font-size:14.5px;line-height:1.85;color:var(--ink-dim);font-weight:500}

/* ---- フッター ---- */
/* ページ末尾は夜なので白文字 */
footer{position:relative;z-index:2;text-align:center;font-size:12px;font-weight:600;color:#fff;
  text-shadow:0 1px 3px rgba(0,0,0,.45);padding:0 16px calc(24px + env(safe-area-inset-bottom));opacity:.95}
footer a{color:inherit}