/* ============================================
   武道空手少年クラブ護身教室
   共通スタイル / style.css
   ============================================ */

:root{
  --paper:#faf7f1;
  --paper-2:#f2ede3;
  --ink:#1f2330;
  --ink-2:#4a5163;
  --ink-3:#7b8296;
  --indigo:#26386b;
  --indigo-d:#1a2749;
  --accent:#c4432c;
  --accent-dark:#9c331f;
  --gold:#a98442;
  --line:#ddd6c8;
  --maxw:1080px;
  --pad:clamp(20px,5vw,36px);
  --radius:3px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:"Hiragino Mincho ProN","Yu Mincho","Noto Serif JP","MS PMincho",serif;
  font-size:16.5px;
  line-height:2;
  letter-spacing:.03em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}
.sans{font-family:"Hiragino Kaku Gothic ProN","Yu Gothic","Noto Sans JP",system-ui,sans-serif}

/* ---------- header ---------- */
.hdr{
  position:sticky;top:0;z-index:100;
  background:rgba(250,247,241,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.hdr-in{
  display:flex;align-items:center;gap:20px;
  min-height:64px;max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad);
}
.brand{display:flex;flex-direction:column;line-height:1.35;flex-shrink:0}
.brand b{font-size:17px;font-weight:700;letter-spacing:.08em;color:var(--indigo)}
.brand small{font-size:10.5px;color:var(--ink-3);letter-spacing:.18em;font-family:"Hiragino Kaku Gothic ProN",sans-serif}
.gnav{display:flex;gap:26px;margin-left:auto;font-size:14.5px;font-weight:700}
.gnav a{padding:6px 0;border-bottom:2px solid transparent;transition:.18s}
.gnav a:hover,.gnav a[aria-current="page"]{border-bottom-color:var(--accent);color:var(--accent)}
.hdr-cta{
  background:var(--accent);color:#fff;font-size:13.5px;font-weight:700;
  padding:11px 20px;border-radius:var(--radius);flex-shrink:0;transition:.18s;
  font-family:"Hiragino Kaku Gothic ProN",sans-serif;letter-spacing:.06em;
}
.hdr-cta:hover{background:var(--accent-dark)}
@media(max-width:820px){
  .gnav{display:none}
  .hdr-cta{margin-left:auto}
}

/* モバイル下部固定ナビ */
.mnav{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:120;
  background:rgba(255,255,255,.97);border-top:1px solid var(--line);
  box-shadow:0 -3px 14px rgba(31,35,48,.07);
}
.mnav ul{display:flex;list-style:none}
.mnav li{flex:1}
.mnav a{
  display:block;text-align:center;padding:11px 4px 13px;
  font-size:11.5px;font-weight:700;color:var(--ink-2);
  font-family:"Hiragino Kaku Gothic ProN",sans-serif;letter-spacing:.04em;
}
.mnav a[aria-current="page"]{color:var(--accent)}
.mnav .m-cta{background:var(--accent);color:#fff}
@media(max-width:820px){
  .mnav{display:block}
  body{padding-bottom:56px}
}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--indigo-d)}
.hero-img{
  position:absolute;inset:0;
  background-size:cover;background-position:center 38%;
  opacity:.42;filter:saturate(.85);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(26,39,73,.55),rgba(26,39,73,.82));
}
.hero-in{position:relative;z-index:2;padding-block:clamp(56px,10vw,104px);color:#fff}
.hero .kicker{
  display:inline-block;font-family:"Hiragino Kaku Gothic ProN",sans-serif;
  font-size:12px;letter-spacing:.24em;font-weight:700;
  background:var(--accent);padding:6px 14px;margin-bottom:22px;border-radius:2px;
}
.hero h1{
  font-size:clamp(24px,4.6vw,46px);
  font-weight:700;line-height:1.55;letter-spacing:.05em;
  text-shadow:0 2px 18px rgba(0,0,0,.35);
}
.hero h1 span{color:#ffd9a8}
.hero p{margin-top:20px;font-size:clamp(15px,1.9vw,17.5px);max-width:38em;color:#e8e4dc}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}

/* ---------- buttons ---------- */
.btn{
  display:inline-block;font-family:"Hiragino Kaku Gothic ProN",sans-serif;
  font-weight:700;font-size:15px;letter-spacing:.06em;
  padding:15px 30px;border-radius:var(--radius);transition:.18s;text-align:center;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 3px 14px rgba(196,67,44,.3)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px)}
.btn-line{background:#06c755;color:#fff}
.btn-line:hover{background:#05a648;transform:translateY(-2px)}
.btn-ghost{border:1px solid rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-outline{border:1px solid var(--indigo);color:var(--indigo)}
.btn-outline:hover{background:var(--indigo);color:#fff}

/* ---------- sections ---------- */
section{padding-block:clamp(52px,8vw,88px)}
.tint{background:var(--paper-2)}
.sec-head{margin-bottom:clamp(28px,4.5vw,46px)}
.sec-head .label{
  display:block;font-family:"Hiragino Kaku Gothic ProN",sans-serif;
  font-size:11.5px;letter-spacing:.3em;color:var(--accent);font-weight:700;margin-bottom:12px;
}
.sec-head :is(h1,h2){
  font-size:clamp(22px,3.4vw,34px);font-weight:700;line-height:1.6;letter-spacing:.05em;
  position:relative;padding-bottom:16px;
}
.sec-head :is(h1,h2)::after{content:"";position:absolute;left:0;bottom:0;width:46px;height:2px;background:var(--indigo)}
.sec-head p{margin-top:18px;color:var(--ink-2);max-width:48em;font-size:16px}
.center{text-align:center}
.center :is(h1,h2)::after{left:50%;transform:translateX(-50%)}

/* ---------- 本文ブロック ---------- */
.prose p{margin-bottom:1.5em;color:var(--ink-2)}
.prose p:last-child{margin-bottom:0}
.prose strong{color:var(--ink);font-weight:700}

/* ---------- 4本柱 ---------- */
.pillars{display:grid;grid-template-columns:repeat(auto-fit,minmax(228px,1fr));gap:18px}
.pillar{
  background:#fff;border:1px solid var(--line);border-top:3px solid var(--indigo);
  padding:30px 26px;transition:.2s;
}
.pillar:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(31,35,48,.08)}
.pillar .no{
  font-family:"Hiragino Kaku Gothic ProN",sans-serif;font-size:11px;
  letter-spacing:.2em;color:var(--gold);font-weight:700;display:block;margin-bottom:10px;
}
.pillar h3{font-size:19px;font-weight:700;margin-bottom:12px;letter-spacing:.04em}
.pillar p{font-size:14.5px;color:var(--ink-2);line-height:1.95}

/* ---------- 訴求バー ---------- */
.facts{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));
  gap:1px;background:var(--line);border:1px solid var(--line);
}
.fact{background:#fff;padding:26px 18px;text-align:center}
.fact b{
  display:block;font-family:"Hiragino Kaku Gothic ProN",sans-serif;
  font-size:clamp(24px,3.6vw,34px);font-weight:800;color:var(--accent);
  line-height:1.2;letter-spacing:.02em;white-space:nowrap;
}
.fact span{display:block;margin-top:8px;font-size:13px;color:var(--ink-3);letter-spacing:.06em}

/* ---------- 写真 ---------- */
.photos{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px}
.photos img{aspect-ratio:4/3;object-fit:cover;border:1px solid var(--line)}

/* 本文の横に写真を1枚（理念セクション） */
.concept-grid{
  display:grid;grid-template-columns:1fr .8fr;
  gap:clamp(24px,4vw,44px);align-items:start;
}
.concept-grid .prose{max-width:44em}
.concept-grid img{width:100%;aspect-ratio:4/3;object-fit:cover;border:1px solid var(--line)}
@media(max-width:820px){.concept-grid{grid-template-columns:1fr}}

/* 節の締めに横長の写真を1枚 */
.photo-wide{
  width:100%;aspect-ratio:2.2/1;object-fit:cover;object-position:center 32%;
  border:1px solid var(--line);margin-top:clamp(26px,4vw,36px);
}
@media(max-width:640px){.photo-wide{aspect-ratio:16/10}}

/* ---------- 引用 ---------- */
.quote{
  background:var(--indigo-d);color:#fff;padding:clamp(34px,6vw,56px);
  text-align:center;position:relative;
}
.quote p{font-size:clamp(17px,2.6vw,25px);line-height:1.95;letter-spacing:.06em}
.quote p span{color:#ffd9a8}
.quote cite{
  display:block;margin-top:22px;font-style:normal;font-size:13px;
  color:rgba(255,255,255,.7);letter-spacing:.14em;
  font-family:"Hiragino Kaku Gothic ProN",sans-serif;
}

/* ---------- 手順 ---------- */
.flow{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;counter-reset:f}
.flow-item{
  background:#fff;border:1px solid var(--line);padding:28px 24px;counter-increment:f;position:relative;
}
.flow-item::before{
  content:"STEP " counter(f);
  font-family:"Hiragino Kaku Gothic ProN",sans-serif;font-size:10.5px;font-weight:700;
  letter-spacing:.2em;color:var(--accent);display:block;margin-bottom:12px;
}
.flow-item h3{font-size:17px;font-weight:700;margin-bottom:10px;letter-spacing:.03em}
.flow-item p{font-size:14.5px;color:var(--ink-2);line-height:1.9}

/* ---------- 料金・箇条 ---------- */
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:18px}
.info-card{background:#fff;border:1px solid var(--line);padding:30px 26px}
.info-card h3{
  font-size:16px;font-weight:700;color:var(--indigo);margin-bottom:16px;
  padding-bottom:12px;border-bottom:1px solid var(--line);letter-spacing:.05em;
}
.info-card .big{
  font-family:"Hiragino Kaku Gothic ProN",sans-serif;
  font-size:clamp(26px,3.6vw,34px);font-weight:800;color:var(--accent);line-height:1.25;
}
.info-card .big small{font-size:15px;font-weight:700;color:var(--ink-2);margin-left:4px}
.info-card p{font-size:14.5px;color:var(--ink-2);margin-top:12px;line-height:1.9}

.tick{list-style:none}
.tick li{position:relative;padding:9px 0 9px 26px;font-size:15px;color:var(--ink-2);border-bottom:1px dotted var(--line)}
.tick li:last-child{border-bottom:0}
.tick li::before{
  content:"";position:absolute;left:2px;top:19px;width:9px;height:9px;
  border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);
  transform:rotate(-45deg);
}

/* ---------- 帯（昇級） ---------- */
.belts{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:20px}
.belt{
  font-family:"Hiragino Kaku Gothic ProN",sans-serif;font-size:13px;font-weight:700;
  padding:8px 16px;border-radius:2px;border:1px solid var(--line);background:#fff;
}
.belt-arrow{color:var(--ink-3);font-size:13px}
.b-white{background:#fff;color:var(--ink)}
.b-purple{background:#5b3a7e;color:#fff;border-color:#5b3a7e}
.b-blue{background:#2b5ea8;color:#fff;border-color:#2b5ea8}
.b-yellow{background:#e0b32c;color:#3a2f08;border-color:#e0b32c}
.b-green{background:#2f7d4f;color:#fff;border-color:#2f7d4f}
.b-brown{background:#6b452a;color:#fff;border-color:#6b452a}
.b-black{background:#1f2330;color:#fff;border-color:#1f2330}

/* ---------- 稽古スケジュール ---------- */
.day-block{margin-bottom:26px;border:1px solid var(--line);background:#fff}
.day-head{
  display:flex;align-items:center;gap:14px;
  background:var(--indigo);color:#fff;padding:13px 22px;
}
.day-head b{font-size:18px;font-weight:700;letter-spacing:.1em}
.day-head span{
  font-family:"Hiragino Kaku Gothic ProN",sans-serif;font-size:12px;
  color:rgba(255,255,255,.75);margin-left:auto;letter-spacing:.08em;
}
.day-list{list-style:none}
.day-list li{
  display:flex;gap:18px;align-items:baseline;flex-wrap:wrap;
  padding:14px 22px;border-bottom:1px dotted var(--line);
}
.day-list li:last-child{border-bottom:0}
.day-list .t{
  font-family:"Hiragino Kaku Gothic ProN",sans-serif;font-weight:700;
  font-size:15px;color:var(--accent);flex-shrink:0;min-width:6.5em;letter-spacing:.02em;
}
.day-list .p{font-size:15.5px;color:var(--ink)}
.day-list .tag{
  font-family:"Hiragino Kaku Gothic ProN",sans-serif;font-size:11px;font-weight:700;
  color:var(--gold);border:1px solid var(--gold);padding:2px 8px;border-radius:2px;margin-left:2px;
}

/* ---------- 注記 ---------- */
.notes{list-style:none;margin-top:22px;font-size:14px;color:var(--ink-3)}
.notes li{position:relative;padding-left:1.4em;margin-bottom:8px;line-height:1.9}
.notes li::before{content:"※";position:absolute;left:0}

/* ---------- 最終CTA ---------- */
.cta{background:var(--accent);color:#fff;text-align:center}
.cta h2{font-size:clamp(23px,3.8vw,38px);font-weight:700;line-height:1.6;letter-spacing:.06em;margin-bottom:18px}
.cta p{font-size:16px;max-width:36em;margin:0 auto 30px;color:rgba(255,255,255,.94)}
.cta .btn-primary{background:#fff;color:var(--accent);box-shadow:0 3px 14px rgba(0,0,0,.18)}
.cta .btn-primary:hover{background:#fff5f2}
.cta-note{margin-top:24px;font-size:13.5px;color:rgba(255,255,255,.85)}

/* ---------- footer ---------- */
footer{background:var(--indigo-d);color:rgba(255,255,255,.72);padding-block:52px 34px;font-size:14px}
.f-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:30px;margin-bottom:34px}
.f-grid h4{
  font-family:"Hiragino Kaku Gothic ProN",sans-serif;font-size:11.5px;letter-spacing:.2em;
  color:#ffd9a8;font-weight:700;margin-bottom:14px;
}
.f-grid a,.f-grid p{display:block;padding:5px 0;color:rgba(255,255,255,.72);font-size:14px;line-height:1.8}
.f-grid a:hover{color:#fff}
.f-btm{
  border-top:1px solid rgba(255,255,255,.15);padding-top:22px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.5);
}

/* ---------- 要差替えマーカー ---------- */
.todo{
  background:#fff3cd;color:#7a5c00;border:1px dashed #c9a227;
  padding:2px 8px;border-radius:2px;font-size:.86em;font-weight:700;
  font-family:"Hiragino Kaku Gothic ProN",sans-serif;
}