/* おとのは ピアノ教室（架空のサンプル）共通CSS
   色：あたたかいクリーム・木の茶・紺
   改行の土台（keep-all など）は各HTMLの <style> にも入れてある */

:root{
  --cream:#fbf6ea;
  --cream-2:#f4ead6;
  --paper:#fffdf8;
  --line:#e4d6b8;
  --wood:#8a5a36;
  --wood-d:#6b4126;
  --wood-l:#d8bd98;
  --navy:#1d2b4a;
  --navy-2:#2b3f6b;
  --navy-d:#141f38;
  --ink:#2b2d3a;
  --muted:#58565e;
  --gold:#e0b25c;
  --gutter:clamp(16px,5vw,40px);
  --font-head:"Zen Maru Gothic","Hiragino Maru Gothic ProN","Hiragino Sans","Yu Gothic",Meiryo,sans-serif;
  --font-body:"Noto Sans JP","Hiragino Sans","Yu Gothic UI","Yu Gothic",Meiryo,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{
  margin:0;
  background:var(--cream);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.9;
}
h1,h2,h3,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%}
a{color:inherit}
a:focus-visible,button:focus-visible{outline:3px solid var(--navy-2);outline-offset:3px;border-radius:6px}
.on-dark a:focus-visible,.cta-band a:focus-visible,.site-footer a:focus-visible{outline-color:#fff}

.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
.skip{position:absolute;left:8px;top:-80px;z-index:50;background:var(--navy);color:#fff;padding:10px 16px;border-radius:8px;text-decoration:none}
.skip:focus{top:8px}

.wrap{width:min(100% - 2 * var(--gutter),1080px);margin-inline:auto}

/* ---------- ヘッダー ---------- */
.site-header{background:var(--cream);border-bottom:1px solid var(--line)}
.sample-band{background:var(--navy-d);color:#f6edd9;font-size:12px;line-height:1.7;text-align:center;padding:8px var(--gutter);text-wrap:balance}
.head-inner{
  width:min(100% - 2 * var(--gutter),1080px);
  margin-inline:auto;
  padding-block:10px 8px;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  grid-template-areas:"brand cta" "note note" "nav nav";
  gap:2px 12px;
  align-items:center;
}
.brand{grid-area:brand;display:flex;align-items:center;gap:10px;min-height:44px;text-decoration:none;color:var(--navy)}
.brand svg{width:40px;height:40px;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.3}
.brand-main{font-family:var(--font-head);font-weight:700;font-size:20px;letter-spacing:.06em}
.brand-sub{font-size:11px;font-weight:500;letter-spacing:.14em;color:var(--wood-d)}
.head-cta{display:contents}
.head-cta .btn{grid-area:cta}
.head-cta .cta-note{grid-area:note;text-align:right}
.head-nav{grid-area:nav;margin-top:6px}
.head-nav ul{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px}
.head-nav a{
  display:flex;align-items:center;justify-content:center;
  min-height:44px;padding:0 2px;border-radius:12px;
  font-size:13px;font-weight:700;text-align:center;text-decoration:none;color:var(--navy);
}
.head-nav a:hover{background:var(--cream-2)}
.head-nav a[aria-current="page"]{background:var(--navy);color:#fff}

@media(min-width:420px){.head-nav a{font-size:14px}}
@media(min-width:960px){
  .head-inner{
    grid-template-columns:auto 1fr auto;
    grid-template-areas:"brand nav cta";
    gap:0 24px;
    padding-block:14px;
  }
  .head-cta{display:flex;flex-direction:column;align-items:flex-end;gap:2px;grid-area:cta}
  .head-cta .btn,.head-cta .cta-note{grid-area:auto}
  .head-nav{margin-top:0;justify-self:center}
  .head-nav ul{display:flex;gap:6px}
  .head-nav a{padding:0 20px;font-size:15px}
}

/* ---------- ボタン・注記 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:999px;border:2px solid transparent;
  font-family:var(--font-body);font-size:16px;font-weight:700;line-height:1.3;
  text-decoration:none;white-space:nowrap;
  transition:background-color .2s,color .2s,border-color .2s;
}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:var(--navy-2)}
.btn-ghost{border-color:var(--wood);color:var(--wood-d);background:transparent}
.btn-ghost:hover{background:var(--cream-2)}
.btn-light{background:#fff;color:var(--navy)}
.btn-light:hover{background:var(--cream-2)}
.btn-sm{min-height:44px;padding:0 18px;font-size:14px}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}
.cta-note{font-size:11px;line-height:1.6;color:var(--muted)}
.cta-band .cta-note,.on-dark .cta-note{color:#e6dcc4}

/* ---------- 共通の部品 ---------- */
.section{padding-block:clamp(52px,8vw,96px)}
.section--paper{background:var(--paper)}
.section--sand{background:var(--cream-2)}
.sec-head{margin-bottom:clamp(24px,4vw,44px)}
.eyebrow{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-head);font-weight:700;font-size:12px;line-height:1.4;
  letter-spacing:.18em;text-transform:uppercase;color:var(--wood-d);
}
.eyebrow::before{
  content:"";flex:none;width:34px;height:13px;
  background:repeating-linear-gradient(to bottom,var(--wood) 0 1px,transparent 1px 3px);
}
h1,h2,h3{font-family:var(--font-head);font-weight:700;color:var(--navy)}
h2{font-size:clamp(24px,3.4vw,34px);line-height:1.5;margin-top:10px}
h3{font-size:18px;line-height:1.6}
.lead{margin-top:14px;max-width:40em;color:var(--muted)}
.small{font-size:13px;color:var(--muted)}

/* 写真（image-notes.js が各 img を包んで注記を足す） */
.shot img{
  display:block;width:100%;height:auto;aspect-ratio:4/5;object-fit:cover;
  border-radius:18px;background:var(--cream-2);color:var(--muted);font-size:12px;
}
.shot--square img{aspect-ratio:1/1}
.shot--wide img{aspect-ratio:3/2}
.shot figcaption{margin-top:14px}
.shot h3{margin-bottom:6px}
.shot figcaption p{color:var(--muted);font-size:15px}
.section--paper .shot img{background:var(--cream-2)}

/* ---------- トップ：最初の画面 ---------- */
.hero{position:relative;overflow:hidden;padding-block:clamp(28px,5vw,64px) clamp(76px,9vw,112px)}
.hero::before{
  content:"";position:absolute;left:0;right:0;bottom:18px;height:49px;pointer-events:none;
  background:repeating-linear-gradient(to bottom,rgba(138,90,54,.22) 0 1px,transparent 1px 12px);
}
.hero-grid{position:relative;display:grid;gap:28px;align-items:center}
.hero-visual{position:relative;isolation:isolate;order:-1}
.hero-visual::before{
  content:"";position:absolute;z-index:-1;inset:16px -12px -12px 16px;
  border-radius:20px;background:var(--navy);
}
.hero-photo{
  display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:cover;
  border-radius:18px;background:var(--cream-2);color:var(--muted);font-size:12px;
}
.hero-name{
  display:inline-block;padding:4px 14px;border-radius:999px;background:var(--cream-2);
  font-family:var(--font-head);font-weight:700;font-size:14px;letter-spacing:.08em;color:var(--wood-d);
}
.hero h1{font-size:clamp(28px,5.4vw,46px);line-height:1.5;margin:14px 0 16px}
.lede{font-size:clamp(15px,1.7vw,17px);margin-bottom:24px;max-width:34em}
.hero .cta-note{margin-top:10px}
.facts{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.facts li{
  padding:4px 14px;border:1px solid var(--line);border-radius:999px;
  background:var(--paper);color:var(--wood-d);font-size:13px;font-weight:500;line-height:1.7;
}
@media(min-width:900px){
  .hero-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:56px}
  .hero-visual{order:0}
  .hero-visual::before{inset:22px -18px -18px 22px}
}

/* ---------- 教室の特徴 ---------- */
.feature-grid{display:grid;gap:18px}
.feature{
  position:relative;background:var(--cream);border:1px solid var(--line);border-radius:20px;
  padding:28px 24px 26px;
}
.feature-icon{
  width:56px;height:56px;border-radius:50%;background:var(--cream-2);color:var(--navy);
  display:grid;place-items:center;margin-bottom:14px;
}
.feature-icon svg{width:30px;height:30px}
.feature-num{
  position:absolute;top:22px;right:24px;
  font-family:var(--font-head);font-weight:700;font-size:28px;line-height:1;color:var(--wood-l);
}
.feature h3{margin-bottom:8px}
.feature p:last-child{color:var(--muted);font-size:15px}
@media(min-width:760px){.feature-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}}

/* ---------- 先生の紹介 ---------- */
.teacher{display:grid;gap:28px;align-items:start}
.teacher-id{
  max-width:440px;position:relative;overflow:hidden;background:var(--navy);color:#f6edd9;
  border-radius:22px;padding:30px 28px 64px;
}
.teacher-id::after{
  content:"";position:absolute;left:28px;right:28px;bottom:26px;height:25px;
  background:repeating-linear-gradient(to bottom,rgba(246,237,217,.45) 0 1px,transparent 1px 6px);
}
.teacher-role{font-size:13px;letter-spacing:.16em;color:var(--gold)}
.teacher-name{font-family:var(--font-head);font-weight:700;font-size:30px;line-height:1.4;color:#fff;margin-top:6px}
.teacher-kana{font-size:13px;color:#d9cfb7}
.badge{
  display:inline-block;margin-top:16px;padding:2px 14px;border-radius:999px;
  background:var(--cream);color:var(--navy);font-size:13px;font-weight:700;
}
.teacher-text{display:grid;gap:16px}
.teacher-text p{max-width:36em}
@media(min-width:860px){.teacher{grid-template-columns:minmax(0,320px) minmax(0,1fr);gap:56px}}

/* ---------- レッスンの様子 ---------- */
.lesson-grid{display:grid;gap:32px}
.lesson-grid .shot img{aspect-ratio:4/3}
@media(min-width:700px){.lesson-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}.lesson-grid .shot img{aspect-ratio:1/1}}

/* ---------- 入口カード ---------- */
.gate-grid{display:grid;gap:18px}
.gate{
  position:relative;display:flex;flex-direction:column;gap:10px;
  background:var(--paper);border:1px solid var(--line);border-radius:22px;padding:28px;
  transition:border-color .2s,transform .2s;
}
.gate:hover{border-color:var(--wood);transform:translateY(-2px)}
.gate p{color:var(--muted);font-size:15px}
.gate-link{
  position:static;display:inline-flex;align-items:center;gap:8px;min-height:44px;
  margin-top:auto;font-weight:700;color:var(--navy);text-decoration:none;
}
.gate-link::before{content:"";position:absolute;inset:0;border-radius:22px}
.gate-link span{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--navy);color:#fff;font-size:14px}
@media(min-width:760px){.gate-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}}
@media(prefers-reduced-motion:reduce){.gate,.btn{transition:none}.gate:hover{transform:none}}

/* ---------- サブページの題 ---------- */
.page-head{position:relative;overflow:hidden;background:var(--cream-2);padding-block:clamp(32px,6vw,72px)}
.page-head-grid{display:grid;gap:28px;align-items:center}
.page-head h1{font-size:clamp(28px,5vw,42px);line-height:1.5;margin:12px 0 14px}
.page-head .lead{margin-top:0;color:var(--ink)}
.page-head .shot img{aspect-ratio:4/3}
.page-head .btn-row{margin-top:22px}
@media(min-width:860px){
  .page-head-grid--photo{grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:56px}
  .page-head .shot img{aspect-ratio:1/1}
}

/* ---------- 料金の表 ---------- */
.table-card{border:1px solid var(--line);border-radius:20px;overflow:hidden;background:var(--paper)}
.price-table{width:100%;border-collapse:collapse}
.price-table th,.price-table td{padding:16px 12px;text-align:left;vertical-align:middle;border-bottom:1px solid var(--line)}
.price-table tbody tr:last-child th,.price-table tbody tr:last-child td{border-bottom:0}
.price-table thead th{background:var(--navy);color:#fff;font-size:12px;font-weight:700;line-height:1.5;border-bottom:0}
.price-table thead small{display:block;font-weight:400;font-size:11px;color:#e6dcc4}
.price-table tbody th{font-family:var(--font-head);font-size:16px;line-height:1.5;color:var(--navy)}
.price-table tbody th small{display:block;margin-top:2px;font-family:var(--font-body);font-weight:400;font-size:12px;color:var(--muted)}
.price-table td{font-size:14px;white-space:nowrap}
.price-table .price{font-family:var(--font-head);font-weight:700;font-size:19px;color:var(--navy);text-align:right}
.price-table thead th:last-child{text-align:right}
.price-table th:nth-child(2),.price-table td:nth-child(2){width:24%}
.price-table th:nth-child(3),.price-table td:nth-child(3){width:34%}
@media(min-width:640px){
  .price-table th,.price-table td{padding:20px 28px}
  .price-table thead th{font-size:14px}
  .price-table thead small{font-size:12px}
  .price-table tbody th{font-size:18px}
  .price-table td{font-size:16px}
  .price-table .price{font-size:24px}
}
.table-note{margin-top:14px}

/* ---------- 入会金・教材費 ---------- */
.fee-grid{display:grid;gap:18px}
.fee{background:var(--cream);border:1px solid var(--line);border-radius:20px;padding:26px 24px}
.fee h3{font-size:16px;color:var(--wood-d)}
.fee-price{font-family:var(--font-head);font-weight:700;font-size:30px;line-height:1.4;color:var(--navy);margin:4px 0 8px}
.fee-price small{font-size:14px;font-weight:500;color:var(--muted);margin-left:4px}
.fee p:last-child{color:var(--muted);font-size:15px}
@media(min-width:640px){.fee-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}}

/* ---------- 流れ（番号つき） ---------- */
.steps{counter-reset:step;display:grid}
.step{position:relative;counter-increment:step;padding:0 0 28px 62px}
.step:last-child{padding-bottom:0}
.step::before{
  content:counter(step);position:absolute;left:0;top:0;
  width:44px;height:44px;border-radius:50%;background:var(--navy);color:#fff;
  display:grid;place-items:center;font-family:var(--font-head);font-weight:700;font-size:18px;
}
.step::after{content:"";position:absolute;left:21px;top:50px;bottom:6px;width:2px;background:var(--wood-l)}
.step:last-child::after{display:none}
.step h3{font-size:17px;margin-bottom:4px;padding-top:7px}
.step p{color:var(--muted);font-size:15px}
@media(min-width:900px){
  .steps{grid-template-columns:repeat(var(--cols,5),minmax(0,1fr));gap:22px}
  .step{padding:62px 0 0}
  .step::after{left:54px;right:-16px;top:21px;bottom:auto;width:auto;height:2px}
  .step h3{padding-top:0}
}
.steps--4{--cols:4}
.after-steps{margin-top:36px;display:flex;flex-direction:column;align-items:flex-start;gap:10px}

/* ---------- 決まり・持ち物 ---------- */
.rules{display:grid;gap:12px;max-width:44em}
.rules li{position:relative;padding:2px 0 2px 34px}
.rules li::before{
  content:"";position:absolute;left:2px;top:.65em;width:16px;height:16px;border-radius:50%;
  background:var(--wood-l);box-shadow:inset 0 0 0 5px var(--wood);
}
.item-grid{display:grid;gap:14px}
.item{display:flex;gap:14px;align-items:flex-start;background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:18px 20px}
.item::before{
  content:"";flex:none;width:24px;height:24px;margin-top:3px;border-radius:50%;
  background:var(--navy) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 12.5l3.2 3.2L17 9' fill='none' stroke='%23fff' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/100% no-repeat;
}
.item h3{font-size:16px;margin-bottom:2px}
.item p{color:var(--muted);font-size:14px;line-height:1.7}
@media(min-width:640px){.item-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* ---------- よくある質問 ---------- */
.faq-layout{display:grid;gap:32px;align-items:start}
.faq{display:grid;gap:14px}
.qa{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:20px 22px}
.qa h3{position:relative;font-size:17px;padding-left:40px;margin-bottom:10px}
.qa p{position:relative;padding-left:40px;color:var(--ink);font-size:15px}
.qa h3::before,.qa p::before{
  position:absolute;left:0;top:3px;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;font-family:var(--font-head);font-weight:700;font-size:14px;line-height:1;
}
.qa h3::before{content:"Q";background:var(--navy);color:#fff}
.qa p::before{content:"A";background:var(--wood-l);color:var(--wood-d);top:4px}
@media(min-width:960px){
  .faq-layout{grid-template-columns:minmax(0,1fr) 340px;gap:48px}
  .faq-layout .shot{position:sticky;top:24px}
}

/* ---------- 場所 ---------- */
.access{display:grid;gap:24px;align-items:start}
.info{background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:6px 24px}
.info > div{padding:14px 0;border-bottom:1px solid var(--line)}
.info > div:last-child{border-bottom:0}
.info dt{font-weight:700;font-size:13px;line-height:1.6;color:var(--wood-d)}
@media(min-width:520px){.info > div{display:grid;grid-template-columns:6em minmax(0,1fr);gap:12px}.info dt{font-size:16px;line-height:1.9}}
.map-box{
  aspect-ratio:4/3;display:grid;place-items:center;text-align:center;padding:16px;
  background:#dcdcdc;border:2px dashed #8f8f8f;border-radius:20px;color:#3d3d3d;font-weight:700;
}
@media(min-width:860px){.access{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px}}

/* ---------- 下の帯 ---------- */
.cta-band{background:var(--navy);color:#f6edd9;padding-block:clamp(44px,7vw,72px);text-align:center}
.cta-band h2{color:#fff;margin-top:0}
.cta-band p{margin:12px auto 24px;max-width:34em}

/* ---------- フッター ---------- */
.site-footer{background:var(--navy-d);color:#efe6d2;padding:44px 0 32px}
.footer-grid{display:grid;gap:26px}
.footer-name{font-family:var(--font-head);font-weight:700;font-size:20px;color:#fff;letter-spacing:.06em}
.footer-addr{margin-top:6px;font-size:14px;line-height:1.8}
.footer-nav ul{display:flex;flex-wrap:wrap;gap:0 22px}
.footer-nav a{display:inline-flex;align-items:center;min-height:44px;color:#efe6d2;text-underline-offset:4px}
.footer-nav a[aria-current="page"]{color:#fff;font-weight:700}
.footer-note{font-size:12px;line-height:1.8;color:#cfc6b0}
.copy{margin-top:6px;font-size:12px;color:#cfc6b0}
@media(min-width:860px){.footer-grid{grid-template-columns:1.1fr 1fr;align-items:start;gap:40px}.footer-bottom{grid-column:1/-1}}