@charset "utf-8";
/* せたがや教室ノート — DESIGN.md に対応。色は :root、余白は8の倍数だけ */

:root{
  --cream:#FCFBF4; --card:#FFFFFF;
  --nv:#22265F; --nv2:#171359; --gy:#71748A; --ln:#E8E6D9;
  --or:#DE4A07;  /* 「公開されていません」専用 */
  --hi:#FFEA00;  /* アクセント。1画面に1か所まで */
  /* 駅の色。各ページで上書きする */
  --deep:#3F7A5E; --pale:#E9F2EB; --blob:#E1EDE5;
  --blob2:#FBF3D4;
  --w:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--cream); color:var(--nv);
  font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic Medium","Noto Sans JP","Meiryo",sans-serif;
  font-size:15px; line-height:1.8; -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
/* 紙のざらつき（4-5a） */
body::after{
  content:""; position:fixed; inset:0; pointer-events:none; z-index:99; opacity:.28;
  mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)' opacity='.3'/%3E%3C/svg%3E");
}
img,svg{display:block;max-width:100%}
a{color:var(--nv)}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul{padding:0;list-style:none}

.wrap{max-width:var(--w);margin:0 auto;padding:0 40px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ===== ヘッダー ===== */
.hd{position:relative;z-index:5;height:72px;display:flex;align-items:center;
    justify-content:space-between;max-width:var(--w);margin:0 auto;padding:0 40px}
.hd .logo svg{height:46px;width:auto}
.nav{display:flex;gap:32px;align-items:center;font-size:15px;white-space:nowrap}
.nav a{display:inline-flex;align-items:center;gap:8px;text-decoration:none}
.nav a:hover{color:var(--nv2)}
.nav .ico{width:18px;height:18px;color:var(--deep);flex:none}
.burger{display:none;background:none;border:0;padding:8px;cursor:pointer;color:var(--nv)}

/* ===== 背景のベタ塗り（4-6） ===== */
.blobs{position:absolute;inset:0;overflow:hidden;z-index:0;pointer-events:none}
.blobs svg{position:absolute}

/* ===== ページ見出し帯 ===== */
.band{position:relative;background:var(--pale);padding:32px 0 0;margin-bottom:64px;z-index:2}
.band .grain{position:absolute;inset:0;opacity:.5;mix-blend-mode:multiply;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='m'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.02' numOctaves='5'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23m)' opacity='.18'/%3E%3C/svg%3E")}
.band .inner{position:relative;z-index:2;max-width:var(--w);margin:0 auto;padding:0 40px 72px}
.band .wave{position:absolute;left:0;bottom:-1px;width:100%;z-index:3}
.band .pic{position:absolute;right:40px;bottom:96px;z-index:2}

.crumb{font-size:11.5px;color:var(--deep);opacity:.85;margin-bottom:14px;white-space:nowrap;
       overflow:hidden;text-overflow:ellipsis}
.crumb a{color:inherit;text-decoration:none}
.crumb a:hover{text-decoration:underline}
.latin{font-size:11px;letter-spacing:.2em;font-weight:700;color:var(--deep);opacity:.8}

/* 教室ページ：教室名が主役、駅名は右に添える（1-1） */
.ttl{display:flex;align-items:baseline;gap:20px;flex-wrap:wrap}
.ttl h1{font-size:56px;font-weight:700;line-height:1.05;letter-spacing:.01em}
.ttl .st{display:flex;flex-direction:column;line-height:1.2}
.ttl .st b{font-size:24px;font-weight:700;color:var(--deep)}

/* 一覧ページ：駅名が主役 */
.ttl-list h1{font-size:56px;font-weight:700;line-height:1.05;color:var(--deep)}
.ttl-list .cnt{font-size:16px;font-weight:700;margin-left:14px}

.tags{display:flex;gap:7px;flex-wrap:wrap;margin-top:16px}
.tags span{font-size:11.5px;font-weight:600;background:rgba(255,255,255,.88);
           border-radius:999px;padding:5px 13px;white-space:nowrap}

/* ===== 本文 ===== */
main{position:relative;z-index:1}
.lead{font-size:15px;line-height:1.9;max-width:40em}
section.blk{margin-bottom:96px;position:relative;z-index:1}
h2.sec{font-size:20px;font-weight:700;margin-bottom:6px}
p.sub{font-size:12.5px;color:var(--gy);margin-bottom:24px}

/* ===== この教室のかたち（5-6） ===== */
.six{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.six>div{background:var(--card);border-radius:20px;padding:22px 24px;display:flex;
  flex-direction:column;gap:10px;
  box-shadow:0 1px 2px rgba(34,38,95,.04),0 10px 26px -16px rgba(34,38,95,.16)}
.six>div:first-child{background:var(--pale)}
.six>div:first-child .v{font-size:19px}
.six .k{font-size:11.5px;font-weight:700;letter-spacing:.06em;color:var(--deep)}
.six .v{font-size:16px;font-weight:700;line-height:1.55}
.six .v.na2{font-size:13.5px;font-weight:400;color:var(--gy)}
.six .note{font-size:13.5px;line-height:1.7;color:#3A3E66;font-weight:400}

/* ===== 料金 ===== */
.fee{background:var(--card);border-radius:20px;padding:28px 32px;display:flex;gap:40px;
  box-shadow:0 1px 2px rgba(34,38,95,.04),0 10px 26px -16px rgba(34,38,95,.16)}
.fee .big{flex:none;min-width:170px}
.fee .big em{font-size:11.5px;font-style:normal;color:var(--gy);font-weight:700;display:block}
.fee .big b{display:block;font-size:34px;line-height:1.25;letter-spacing:.01em}
.fee .big .na{font-size:16px}
.fee .txt{font-size:13.5px;line-height:1.8;border-left:1px solid var(--ln);padding-left:40px;flex:1}
.fee dl{display:grid;grid-template-columns:auto 1fr;gap:10px 20px;margin-top:16px;
        padding-top:16px;border-top:1px solid var(--ln)}
.fee dt{font-size:12.5px;color:var(--gy)}
.fee dd{font-size:13.5px;margin:0}

/* ===== 定義リスト（講師・体制／教室のようす／アクセス） ===== */
.cols{display:grid;grid-template-columns:1fr 1fr;gap:56px}
.dl{width:100%}
.dl .row{display:grid;grid-template-columns:150px 1fr;gap:24px;padding:16px 0;
         border-bottom:1px solid var(--ln)}
.dl .row:first-child{border-top:1px solid var(--ln)}
.dl dt{font-size:12.5px;color:var(--gy)}
.dl dd{margin:0;font-size:15px;line-height:1.75}

/* ===== 体験で聞くこと（5-5） ===== */
.ask{background:var(--pale);border-radius:26px;padding:40px}
.ask h2{font-size:22px;font-weight:700;margin-bottom:24px}
.ask ol{counter-reset:a;list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:14px}
.ask li{counter-increment:a;display:flex;gap:14px;align-items:flex-start;font-size:15px;line-height:1.7}
.ask li::before{content:counter(a);flex:none;width:26px;height:26px;border-radius:50%;
  background:var(--deep);color:#fff;font-size:13px;font-weight:700;
  display:grid;place-items:center;margin-top:2px}

/* ===== 出どころ ===== */
.src{font-size:12.5px;color:var(--gy);line-height:1.9}

/* ===== カード（5-1） ===== */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid.g4{grid-template-columns:repeat(4,1fr);gap:20px}
.grid.g4 .card .top .jp{font-size:28px}
.card{background:var(--card);border-radius:20px;overflow:hidden;display:flex;flex-direction:column;
  text-decoration:none;color:inherit;
  content-visibility:auto;contain-intrinsic-size:380px;
  box-shadow:0 1px 2px rgba(34,38,95,.04),0 10px 26px -16px rgba(34,38,95,.16);
  transition:box-shadow .2s}
.card:hover{box-shadow:0 2px 4px rgba(34,38,95,.06),0 18px 34px -18px rgba(34,38,95,.3)}
.card .top{position:relative;background:var(--c-pale);padding:18px 20px 0;height:148px}
.card .top .latin{font-size:10px;letter-spacing:.16em;color:var(--c-deep);opacity:.75;white-space:nowrap}
.card .top .jp{font-size:34px;font-weight:700;line-height:1.1;color:var(--c-deep);margin-top:2px}
.card .top .pic{position:absolute;right:16px;bottom:30px}
.card .top .wave{position:absolute;left:0;bottom:-1px;width:100%}
/* 同じ駅ばかりが並ぶ画面では駅名を出さない（5-1） */
.card.same .top{height:64px;padding:0}
.card.same .top .latin,.card.same .top .jp{display:none}
.card.same .top .pic{bottom:6px;right:18px}
.card .bd{padding:14px 20px 20px;flex:1;display:flex;flex-direction:column}
.card .nm{font-size:17px;font-weight:700;line-height:1.45}
.card .tags{margin-top:9px;margin-bottom:13px}
.card .tags span{background:#F2F1E7;font-size:10.5px;padding:3px 9px;font-weight:600;color:var(--gy)}
.card .meta{margin-top:auto;border-top:1px solid var(--ln);padding-top:12px;font-size:12.5px;
            color:var(--gy);display:flex;gap:7px;align-items:flex-start}
.card .meta .walk{width:14px;height:16px;flex:none;margin-top:2px;color:var(--gy)}
.card .money{margin-top:9px;display:flex;align-items:baseline;gap:8px}
.card .money em{font-size:10.5px;font-style:normal;color:var(--gy);font-weight:700}
.card .money b{font-size:28px;font-weight:700;line-height:1.1}

.na{color:var(--or);font-weight:700;font-size:12.5px}
.na2{color:var(--gy);font-size:12.5px}

/* ===== 絞り込み（5-7） ===== */
.filters{margin-bottom:40px}
.frow{display:grid;grid-template-columns:96px 1fr;gap:16px;align-items:start;margin-bottom:12px}
.frow>span{font-size:12.5px;color:var(--gy);padding-top:9px}
.chips{display:flex;gap:10px;flex-wrap:wrap}
.chip{font-size:14px;background:var(--card);border:1px solid var(--ln);color:var(--nv);
  border-radius:999px;padding:9px 20px;cursor:pointer;white-space:nowrap;
  font-family:inherit;transition:background .15s,color .15s,border-color .15s}
.chip:hover{border-color:var(--deep)}
.chip[aria-pressed="true"]{background:var(--deep);border-color:var(--deep);color:#fff}
.fclear{background:none;border:0;font:inherit;font-size:13px;color:var(--nv);
  text-decoration:underline;cursor:pointer;padding:9px 0;white-space:nowrap}
.fbtn{display:none}
.empty{display:none;background:var(--card);border-radius:20px;padding:40px;text-align:center}
.empty p{font-size:15px;margin-bottom:20px}
.is-empty .empty{display:block}
.is-empty .grid{display:none}
.card[hidden]{display:none}

/* ===== トップ ===== */
.hero{background:var(--card);border-radius:26px;display:grid;grid-template-columns:1fr 420px;
      overflow:hidden;min-height:400px;margin-bottom:96px;position:relative}
.hero .L{padding:56px 0 56px 56px;display:flex;flex-direction:column;justify-content:center}
.hero .L .logo{width:250px;margin-bottom:8px}
.hero h1{font-size:36px;font-weight:900;line-height:1.4;letter-spacing:.01em}
.hero .mk{background:linear-gradient(transparent 62%,var(--hi) 62%,var(--hi) 94%,transparent 94%);padding:0 2px}
.hero p{margin-top:24px;font-size:15px;line-height:1.85;max-width:34em;color:#3A3E66}
.hero .R{position:relative;overflow:hidden}
.hero .R svg{position:absolute;right:-60px;top:-40px}

.stations{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stations a,.stations span{display:block;border-radius:20px;padding:20px 22px 22px;text-decoration:none;
  color:inherit;transition:transform .2s}
.stations a:hover{transform:translateY(-2px)}
.stations .lt{font-size:10px;letter-spacing:.16em;font-weight:700;opacity:.7}
.stations .rw{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-top:26px}
.stations .jp{font-size:30px;font-weight:700;white-space:nowrap;letter-spacing:-.01em}
.stations .n{font-size:13px;font-weight:700;white-space:nowrap;flex:none}

.cats{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.cats a{background:var(--card);border-radius:20px;padding:28px 32px;text-decoration:none;color:inherit;
  box-shadow:0 1px 2px rgba(34,38,95,.04),0 10px 26px -16px rgba(34,38,95,.16);transition:box-shadow .2s}
.cats a:hover{box-shadow:0 2px 4px rgba(34,38,95,.06),0 18px 34px -18px rgba(34,38,95,.3)}
.cats .h{display:flex;align-items:center;gap:12px}
.cats .h .ico{width:24px;height:24px;color:var(--deep)}
.cats .h b{font-size:21px;font-weight:700}
.cats .h em{font-size:13px;font-style:normal;font-weight:700}
.cats p{margin-top:12px;font-size:14px;color:#3A3E66;line-height:1.8}

/* このサイトの決まり（紺ベタ。地の色より暗い面はここ1か所だけ） */
.rules{background:var(--nv);color:#fff;position:relative;padding:0 0 72px;margin:96px 0 0}
.rules .wave-t{position:absolute;left:0;top:-1px;width:100%;transform:rotate(180deg)}
.rules .wave-b{position:absolute;left:0;bottom:-1px;width:100%}
.rules .inner{position:relative;z-index:2;max-width:var(--w);margin:0 auto;padding:72px 40px 0}
.rules h2{font-size:22px;font-weight:700;margin-bottom:40px}
.rules .three{display:grid;grid-template-columns:repeat(3,1fr);gap:44px}
.rules .ico{display:block;margin-bottom:18px}
.rules .ico svg{width:48px;height:48px;display:block}
.rules h3{font-size:19px;font-weight:700;margin-bottom:10px}
.rules p{font-size:14px;line-height:1.85;color:#D7D9E8}

/* ===== フッター ===== */
.ft{border-top:1px solid var(--ln);margin-top:96px;position:relative;z-index:2}
.ft .inner{max-width:var(--w);margin:0 auto;padding:32px 40px;display:flex;
           justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.ft .nm{font-size:14px;font-weight:700}
.ft ul{display:flex;gap:32px;font-size:13px}
.ft a{color:var(--gy);text-decoration:none}
.ft a:hover{color:var(--nv)}

/* ===== 読み物ページ ===== */
.doc{background:var(--card);border-radius:26px;padding:56px;max-width:44em}
.doc h2{font-size:20px;font-weight:700;margin:40px 0 16px}
.doc h2:first-child{margin-top:0}
.doc p{margin-bottom:20px;line-height:1.95}
.doc p:last-child{margin-bottom:0}

/* ===== スマホ（8章） ===== */
@media (max-width:767px){
  :root{--w:100%}
  .wrap{padding:0 16px}
  .hd{height:56px;padding:0 16px}
  .hd .logo{display:flex;align-items:center;height:56px}
  .hd .logo svg{height:38px}
  .burger{padding:10px;min-width:44px;min-height:44px}
  .nav{position:fixed;inset:0;background:var(--cream);z-index:50;flex-direction:column;
       justify-content:center;gap:0;font-size:18px;display:none}
  .nav.open{display:flex}
  .nav a{height:56px;padding:0 24px;justify-content:center}
  .burger{display:block;position:relative;z-index:60}

  .band{padding-top:20px;margin-bottom:48px}
  .band .inner{padding:0 16px 64px}
  .band .pic{right:16px;bottom:78px;transform:scale(.62);transform-origin:bottom right}
  .ttl{gap:0;flex-direction:column;align-items:flex-start}
  .ttl h1{font-size:32px;order:2}
  .ttl .st{order:1;flex-direction:row;align-items:baseline;gap:8px;margin-bottom:4px}
  .ttl .st b{font-size:18px}
  .ttl-list h1{font-size:36px}
  .tags span{font-size:11px;padding:4px 11px}

  section.blk{margin-bottom:64px}
  .six,.grid,.grid.g4,.stations,.cats,.cols,.rules .three{grid-template-columns:1fr;gap:16px}
  .cols{gap:40px}
  .fee{flex-direction:column;gap:20px;padding:24px 20px}
  .fee .txt{border-left:0;border-top:1px solid var(--ln);padding-left:0;padding-top:20px}
  .dl .row{grid-template-columns:1fr;gap:4px;padding:14px 0}
  .ask{padding:24px;border-radius:20px}
  .ask h2{font-size:19px}

  .hero{grid-template-columns:1fr;min-height:0;margin-bottom:64px}
  .hero .L{padding:32px 20px}
  .hero .L .logo{width:200px}
  .hero h1{font-size:28px}
  .hero .R{height:150px}
  .hero .R svg{right:-80px;top:-60px}

  .rules{margin-top:64px;padding-bottom:56px}
  .rules .inner{padding:56px 16px 0}
  .rules .three{gap:32px}

  .ft .inner{flex-direction:column;align-items:flex-start;padding:24px 16px 96px}
  .ft ul{flex-direction:column;gap:14px}

  .doc{padding:28px 20px;border-radius:20px}

  /* 絞り込みはシートで開く（5-7） */
  .frow{display:block;margin-bottom:18px}
  .frow>span{display:block;padding:0 0 8px}
  .fbtn{display:flex;width:100%;align-items:center;justify-content:center;gap:10px;
    background:var(--card);border:1px solid var(--ln);border-radius:999px;
    padding:14px;font:inherit;font-size:15px;color:var(--nv);cursor:pointer;margin-bottom:24px}
  .filters{position:fixed;inset:auto 0 0 0;z-index:60;background:var(--cream);
    border-radius:22px 22px 0 0;padding:20px 16px 0;max-height:80vh;overflow:auto;
    transform:translateY(102%);transition:transform .25s;box-shadow:0 -10px 40px rgba(34,38,95,.25)}
  .filters.open{transform:none}
  .fhead{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
  .fhead b{font-size:17px}
  .fclose{background:none;border:0;padding:11px;min-width:44px;min-height:44px;cursor:pointer;color:var(--nv)}
  .chip{padding:12px 20px;min-height:44px}
  .frow .fclear{display:none} /* シート下端の「すべて解除」と重複するため */
  .fbar{position:sticky;bottom:0;background:var(--cream);padding:16px 0;display:flex;gap:12px}
  .fbar .fclear{flex:1;border:1px solid var(--ln);border-radius:999px;text-decoration:none;
                text-align:center;padding:14px;background:var(--card)}
  .fbar .fdone{flex:1.4;background:var(--deep);color:#fff;border:0;border-radius:999px;
               padding:14px;font:inherit;font-weight:700;cursor:pointer}
  .fmask{position:fixed;inset:0;background:rgba(34,38,95,.45);z-index:55;display:none}
  .fmask.open{display:block}

  /* 下部固定バー（教室ページ） */
  .fixbar{position:fixed;left:0;right:0;bottom:0;z-index:40;display:flex;gap:12px;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    background:rgba(252,251,244,.96);border-top:1px solid var(--ln);backdrop-filter:blur(6px)}
  .fixbar a{flex:1;text-align:center;padding:14px;border-radius:999px;font-size:14px;
            font-weight:700;text-decoration:none}
  .fixbar .back{background:var(--card);border:1px solid var(--ln);color:var(--nv)}
  .fixbar .go{background:var(--deep);color:#fff}
  body.has-fixbar{padding-bottom:88px}
  /* 背景のベタ塗りは①③を外す */
  .blobs .b1,.blobs .b3{display:none}
}
@media (min-width:768px){ .fixbar,.fmask,.fhead,.fbar{display:none} }

@media (prefers-reduced-motion:reduce){ *{transition:none!important;animation:none!important} }
@media print{ body::after,.blobs,.band .grain{display:none} }