/* 学習塾 ふみづくえ（架空）の見本。夜の勉強机に、電気スタンドの明かり。色は 夜の紺・紙・赤ペン の3つ（教科の色は 3D と時間割の札だけ）、書体は丸ゴシック1つ。 */
@font-face{font-family:"ZM";src:url(fonts/zm.woff2?v=1) format("woff2");font-weight:500;font-display:optional}
:root{
  --yoru:#11151f; --yoru-2:#181d2a; --kami:#f2eee4; --kami-2:rgba(242,238,228,.72); --kami-3:rgba(242,238,228,.2); --aka:#e2553f; --aka-ji:#ff8f78;
  --maru:"ZM","Zen Maru Gothic","Hiragino Maru Gothic ProN","BIZ UDPGothic","Yu Gothic",sans-serif;
  --pad:clamp(16px,4.2vw,64px);
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--maru);font-weight:500;font-synthesis:none;color:var(--kami);line-height:1.8;font-size:15px;background:var(--yoru);overflow-x:clip;
  word-break:keep-all;overflow-wrap:anywhere;letter-spacing:.04em;-webkit-font-smoothing:antialiased}
a{color:inherit}
h1,h2{font-weight:500;margin:0;text-wrap:balance}
h1{font-size:clamp(1.65rem,3.1vw,2.7rem);line-height:1.55;letter-spacing:.06em}
h2{font-size:clamp(1.25rem,2vw,1.75rem);line-height:1.55;letter-spacing:.06em}
p{margin:.5em 0 0}
button{font:inherit;color:inherit;letter-spacing:inherit}
q{quotes:"「" "」"}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.su{font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* 頭（固定・地を持たない） */
.kashira{position:fixed;left:0;right:0;top:0;z-index:30;height:64px;display:flex;align-items:center;gap:12px;padding:0 var(--pad);color:var(--kami)}
.yago{display:flex;align-items:center;gap:11px;text-decoration:none;margin-right:auto;min-width:0}
.yago svg{width:28px;height:28px;flex:none;color:var(--kami)}
.yago b{font-weight:500;font-size:1rem;letter-spacing:.12em;white-space:nowrap}
.yago small{display:block;font-size:.62rem;color:var(--kami-2);letter-spacing:.12em;line-height:1.3;white-space:nowrap}
.michi{display:flex;gap:clamp(10px,2.4vw,34px)}
.michi a{text-decoration:none;font-size:.8rem;letter-spacing:.12em;white-space:nowrap;padding:.4em 0;color:var(--kami-2);border-bottom:2px solid transparent;transition:color .3s,border-color .3s}
.michi a:hover{color:var(--kami)}
.michi a[aria-current]{color:var(--kami);border-bottom-color:var(--aka)}
@media (max-width:560px){.yago small{font-size:.56rem;letter-spacing:.06em}.yago b{font-size:.86rem;letter-spacing:.06em}.michi{gap:11px}.michi a{font-size:.72rem;letter-spacing:.04em}.yago svg{width:22px;height:22px}.yago{gap:8px}}

/* 断り書き（上と下） */
.mihon-bar{position:relative;z-index:3;background:rgba(17,21,31,.6);font-size:.7rem;line-height:1.6;letter-spacing:.04em;color:var(--kami-2);padding:.4em var(--pad);margin:64px 0 0;text-align:center}
.mihon-bar b{font-weight:500;color:var(--kami)}

/* 3D の舞台と、止めた絵・字を読ませる陰 */
#butai{position:fixed;inset:0;width:100%;height:100%;z-index:0;opacity:0;transition:opacity 1.2s ease;display:block;touch-action:pan-y}
.gl-on #butai{opacity:1}
.e{position:fixed;inset:0;z-index:0;pointer-events:none;transition:opacity 1.2s ease}
.e img{width:100%;height:100%;object-fit:cover;display:block}
.gl-on .e{opacity:0}
.kage{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,rgba(17,21,31,.86) 0,rgba(17,21,31,.45) 70px,rgba(17,21,31,0) 150px),linear-gradient(90deg,rgba(17,21,31,.84) 0,rgba(17,21,31,.55) 30%,rgba(17,21,31,0) 54%),
  linear-gradient(0deg,rgba(17,21,31,.6) 0,rgba(17,21,31,0) 140px)}
@media (max-width:759px){.kage{background:linear-gradient(180deg,rgba(17,21,31,.94) 0,rgba(17,21,31,.8) 40%,rgba(17,21,31,0) 60%),linear-gradient(0deg,rgba(17,21,31,.7) 0,rgba(17,21,31,0) 110px)}}

/* 節（読み進める量で場面が進む）。字は枠に入れず、陰の上にじかに置く */
main{position:relative;z-index:2;pointer-events:none}
.ba{min-height:var(--h,100svh);padding:0 var(--pad)}
.kotoba{position:sticky;top:clamp(110px,22vh,210px);pointer-events:auto;max-width:27em;padding-top:2px}
.kotoba.hero{top:clamp(120px,24vh,250px);max-width:min(34em,50vw)}
.fv{pointer-events:none}.fv .btn{pointer-events:auto}
.kotoba h2{position:relative;padding-top:20px}
.kotoba h2::before{content:"";position:absolute;left:0;top:0;width:26px;height:3px;border-radius:2px;background:var(--aka)}
.kotoba > p{color:var(--kami-2)}
.lead{font-size:.95rem;margin-top:1em!important;color:var(--kami)!important}
.kazu{margin-top:1.1em!important;padding-left:14px;border-left:3px solid var(--aka)}
.kazu b{display:block;font-weight:500;color:var(--kami);font-size:.92rem;line-height:1.6}
.kazu small{display:block;font-size:.72rem;color:rgba(242,238,228,.58);margin-top:.2em;line-height:1.6}
.fv .btn{margin-top:1.6em}
.hint{font-size:.76rem;color:var(--aka-ji)!important;margin-top:1.1em!important;letter-spacing:.06em}
.fuda{font-size:.76rem;letter-spacing:.24em;color:var(--aka-ji)!important;margin:0 0 1.2em}
.mi{font-size:.76rem;letter-spacing:.04em;color:rgba(242,238,228,.56)!important}
.toki{font-size:clamp(2.8rem,6.4vw,5rem);line-height:1.1;margin:.3em 0 .1em!important;color:var(--kami)!important;letter-spacing:.02em}
.nedan{margin-top:1.1em!important;font-size:.92rem;color:var(--kami)!important;letter-spacing:.06em}
.nedan .su{font-size:1.9em;margin:0 .08em}
@media (max-width:759px){
  body{font-size:14px}
  .mihon-bar{font-size:12px;letter-spacing:.02em}
  .mi{font-size:12px}
  .kotoba,.kotoba.hero{top:92px;max-width:none}
  .kotoba{text-shadow:0 1px 6px rgba(17,21,31,.95),0 0 14px rgba(17,21,31,.7)}
  .kotoba .btn,.kotoba .erabu button,.kotoba .jikan button{text-shadow:none}
  .kotoba h2{padding-top:15px}
  .toki{font-size:3rem}
  .lead{font-size:.9rem}
  .kazu small{font-size:11.5px}
}

/* 並び（グラフの数字・事例・0円）・声・流れ・理由 */
.narabi,.koe,.nagare,.riyuu{list-style:none;margin:1.2em 0 0;padding:0}
.narabi li{display:grid;grid-template-columns:1fr auto;gap:0 1.2em;align-items:baseline;padding:.7em 0;border-top:1px solid var(--kami-3);font-size:.86rem}
.narabi li:last-child{border-bottom:1px solid var(--kami-3)}
.narabi li span:nth-child(2){grid-column:1;color:var(--kami-2);font-size:.78rem}
.narabi li b{grid-column:2;grid-row:1/span 2;font-weight:500;font-size:1.45rem;align-self:center;color:var(--kami)}
.narabi.graph li{grid-template-columns:1fr auto;padding:.45em 0}
.narabi.graph li b::after{content:"点";font-size:.5em;margin-left:.2em}
.narabi.graph li:last-child b{color:var(--aka-ji)}
.narabi.zero li b::after{content:"円";font-size:.5em;margin-left:.2em}
.koe li{padding:.75em 0;border-top:1px solid var(--kami-3)}
.koe li:last-child{border-bottom:1px solid var(--kami-3)}
.koe q{display:block;font-size:.95rem;letter-spacing:.05em}
.koe span{display:block;font-size:.72rem;color:var(--kami-2);margin-top:.2em}
.nayami li{padding:.5em 0}.nayami q{font-size:.9rem}
.nagare,.riyuu{counter-reset:n}
.nagare li,.riyuu li{counter-increment:n;display:grid;grid-template-columns:2em 1fr;gap:0 .6em;padding:.5em 0;border-top:1px solid var(--kami-3);font-size:.86rem}
.nagare li:last-child,.riyuu li:last-child{border-bottom:1px solid var(--kami-3)}
.nagare li::before,.riyuu li::before{content:counter(n);grid-row:1/span 2;font-size:1.2rem;color:var(--aka-ji)}
.nagare b,.riyuu b{font-weight:500}
.nagare li > span,.riyuu li > span{color:var(--kami-2);font-size:.76rem}
.riyuu b{font-size:1.02rem}
.tsuki.nagare li::before{content:none}.tsuki.nagare li{grid-template-columns:3em 1fr}.tsuki.nagare li b{grid-row:1/span 2;color:var(--aka-ji)}
.jugyou li{transition:background .3s}.jugyou li.ima{background:rgba(226,85,63,.14)}
blockquote.kotoba-in{margin:1em 0 0;padding:0 0 0 14px;border-left:3px solid var(--aka);font-size:.95rem}
@media (max-width:759px){.nagare li,.riyuu li{padding:.32em 0}.koe li{padding:.5em 0}.narabi li{padding:.5em 0}.nayami li{padding:.32em 0}}

/* 押すもの */
.erabu{display:flex;flex-wrap:wrap;margin-top:1.1em;gap:6px}
.erabu button{border:1px solid rgba(242,238,228,.36);background:rgba(17,21,31,.4);padding:0 1.05em;cursor:pointer;min-height:42px;font-size:.84rem;letter-spacing:.08em;border-radius:21px;transition:background .3s,color .3s}
.erabu button:hover{background:rgba(242,238,228,.1)}
.erabu button[aria-pressed=true]{background:var(--kami);color:var(--yoru);border-color:var(--kami)}
.jikan{display:grid;grid-template-columns:3.4em repeat(var(--n),minmax(0,44px));gap:4px;margin-top:12px;align-items:center}
.jikan span{font-size:.72rem;color:var(--kami-2);text-align:center}
.jikan .ji{text-align:left;font-variant-numeric:tabular-nums}
.jikan button{height:40px;border:1px dashed rgba(242,238,228,.32);background:rgba(17,21,31,.45);border-radius:8px;cursor:pointer;font-size:.9rem;color:var(--kami-2);padding:0;transition:background .25s,transform .2s}
.jikan button:hover{background:rgba(242,238,228,.1)}
.jikan button.on{background:var(--c);border:1px solid var(--c);color:#fff}
.jikan button:active{transform:scale(.94)}
.goukei{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-top:.8em!important;color:var(--kami)!important}
.goukei b{font-weight:500;font-size:clamp(2.1rem,4.2vw,3.1rem);line-height:1.1;min-width:6.4ch;font-variant-numeric:tabular-nums}
.goukei span{font-size:.8rem;color:var(--kami-2);letter-spacing:.06em}
.chiisai{border:0;background:none;text-decoration:underline;text-underline-offset:3px;cursor:pointer;font-size:.76rem;padding:.4em 0;min-height:40px;color:var(--kami-2)}
.cards-te{display:flex;align-items:center;gap:16px;margin-top:1em}
.cards-te .btn{margin-top:0;min-width:8em}
.cards-te .su{font-size:1.1rem;color:var(--kami-2)}
.hyo{width:100%;border-collapse:collapse;font-size:.8rem;margin-top:.4em}
.hyo td{padding:.4em 0;border-bottom:1px solid var(--kami-3)}
.hyo td:last-child{text-align:right;padding-left:1em}
details{margin-top:.9em;border-top:1px solid var(--kami-3)}
details:last-of-type{border-bottom:1px solid var(--kami-3)}
summary{cursor:pointer;font-size:.88rem;min-height:44px;display:flex;align-items:center;letter-spacing:.06em;list-style:none}
summary::-webkit-details-marker{display:none}
summary::after{content:"";width:8px;height:8px;border-right:2px solid var(--aka);border-bottom:2px solid var(--aka);transform:rotate(45deg);margin:0 4px 4px auto;flex:none;transition:transform .3s}
details[open] summary::after{transform:rotate(225deg);margin-bottom:-2px}
details p{font-size:.84rem;color:var(--kami-2);margin:0 0 .8em}
.kotoba details + details{margin-top:0;border-top:0}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:.5em 1.7em;border:1px solid var(--aka);text-decoration:none;cursor:pointer;background:var(--aka);color:#fff;margin-top:1.4em;font-size:.9rem;letter-spacing:.08em;border-radius:26px;transition:background .3s,color .3s}
.btn:hover{background:#c9442f}
.btn.usui{background:transparent;color:var(--kami);border-color:rgba(242,238,228,.5);min-height:46px;font-size:.84rem}
.btn.usui:hover{background:rgba(242,238,228,.1)}

/* 下の入口（いつも見える） */
.iri{position:fixed;left:0;right:0;bottom:0;z-index:30;display:grid;grid-template-columns:1fr 1fr 1.25fr;background:rgba(17,21,31,.95);border-top:1px solid var(--kami-3);
  padding:0 0 env(safe-area-inset-bottom)}
.iri a,.iri button{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:56px;border:0;background:none;text-decoration:none;
  font-size:.8rem;letter-spacing:.06em;line-height:1.35;color:var(--kami);cursor:pointer;padding:4px}
.iri a + a{border-left:1px solid var(--kami-3)}
.iri small{font-size:.62rem;color:var(--kami-2);letter-spacing:.04em}
.iri .shu{background:var(--aka);color:#fff}
.iri .shu small{color:rgba(255,255,255,.82)}
@media (min-width:900px){
  .iri{left:auto;right:var(--pad);bottom:28px;width:auto;display:flex;align-items:stretch;gap:0;border:1px solid var(--kami-3);background:rgba(17,21,31,.75);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-radius:28px;overflow:hidden}
  .iri a,.iri button{flex-direction:row;gap:.7em;padding:0 1.3em;min-height:50px}
  .iri .shu{padding:0 1.7em}
}

@media (max-width:899px){.iri-ugoku .iri{transition:transform .35s ease}.iri-mada .iri{transform:translateY(100%)}}

/* 足元 */
.ashimoto{position:relative;z-index:2;background:var(--yoru);padding:56px var(--pad) 120px;font-size:.78rem;color:var(--kami-2);border-top:1px solid var(--kami-3)}
.ashimoto .in{max-width:1180px;margin:0}
.ashimoto b{font-weight:500;color:var(--kami);letter-spacing:.1em}
.ashimoto nav{display:flex;gap:22px;margin:1.2em 0;flex-wrap:wrap}
.ashimoto nav a{text-decoration:none;letter-spacing:.1em}
.ashimoto .mihon-bar{margin:1.2em 0 0;text-align:left;padding:.8em 1em;border:1px solid var(--kami-3)}

/* 申し込みの窓（紙） */
dialog.mado{border:0;padding:0;max-width:min(520px,calc(100vw - 24px));width:100%;background:var(--kami);color:var(--yoru);border-radius:14px}
dialog.mado::backdrop{background:rgba(8,10,16,.72)}
.mado form{padding:30px clamp(18px,5vw,36px) 28px;max-height:calc(100dvh - 60px);overflow-y:auto;position:relative}
.mado h2{font-size:1.2rem;letter-spacing:.08em}
.mado .mi{color:rgba(17,21,31,.62)!important}
.mado label{display:block;font-size:.82rem;margin:1.1em 0 .2em;letter-spacing:.06em}
.mado label small{color:rgba(17,21,31,.6)}
.mado input{width:100%;font:inherit;padding:.5em .1em;border:0;border-bottom:1px solid rgba(17,21,31,.4);background:transparent;min-height:44px;color:var(--yoru)}
.mado input:focus{outline:none;border-bottom-color:var(--aka)}
.mado .btn{width:100%}
.mado .tojiru{position:absolute;right:6px;top:6px;width:44px;height:44px;border:0;background:transparent;font-size:1.5rem;cursor:pointer;color:var(--yoru)}
.mado .kotae{background:rgba(17,21,31,.06);border-left:3px solid var(--aka);padding:.7em 1em;margin-top:1em;font-size:.84rem}
.shirase{position:fixed;left:50%;bottom:96px;transform:translateX(-50%);background:var(--kami);color:var(--yoru);padding:.75em 1.3em;border-radius:22px;
  z-index:40;font-size:.84rem;letter-spacing:.04em;max-width:calc(100vw - 32px);opacity:0;pointer-events:none;transition:opacity .4s}
.shirase.mieru{opacity:1}
:focus-visible{outline:2px solid var(--aka-ji);outline-offset:3px}