@charset "UTF-8";
/**
 * おとの木こども音楽教室 ／ assets/css/style.css
 * やわらかいクリームと若葉。見出しは Kiwi Maru。
 * レッスンの流れは鍵盤の形で見せる（.kb）。
 */

:root {
  --cream: #FFFDF7;
  --cream-2: #FBF3E2;
  --ink: #453A2E;
  --ink-2: #6E6153;
  --wakaba: #6FA85A;
  --wakaba-d: #4F8340;
  --himawari: #F2B33D;
  --sora: #7FB2D8;
  --momo: #EE8A80;
  --line: #E8DFCD;

  --f-disp: "Kiwi Maru", "Hiragino Mincho ProN", serif;
  --f-body: "Zen Kaku Gothic New", "Hiragino Sans", "Noto Sans JP", sans-serif;
  --f-num: "Zen Maru Gothic", "Hiragino Maru Gothic ProN", sans-serif;

  --gut: clamp(20px, 5vw, 44px);
  --r: 18px;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 2;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol, dl, dd { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p, figure { margin: 0; }
table { border-collapse: collapse; }
:focus-visible { outline: 3px solid var(--himawari); outline-offset: 3px; }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 0; top: 0; z-index: 300; background: var(--ink); color: #fff; padding: 10px 18px; }

.wrap { width: min(1060px, 100% - var(--gut) * 2); margin-inline: auto; }
.wrap-narrow { width: min(720px, 100% - var(--gut) * 2); }

/* ---------- ヘッダー ---------- */

.head { position: sticky; top: 0; z-index: 100; background: rgba(255, 253, 247, .94); backdrop-filter: blur(6px); border-bottom: 1px solid var(--line); }
.head-in {
  width: min(1060px, 100% - var(--gut) * 2); margin-inline: auto;
  height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-leaf { width: 38px; height: 38px; flex: 0 0 38px; }
.brand b { display: block; font-family: var(--f-disp); font-weight: 500; font-size: 19px; line-height: 1.25; }
.brand em { display: block; font-style: normal; font-size: 10.5px; color: var(--ink-2); letter-spacing: .06em; }

.nav { display: flex; align-items: center; gap: 20px; font-size: 13.5px; }
.nav a:hover { color: var(--wakaba-d); }
.nav .nav-cta {
  background: var(--himawari); color: #4A3407; border-radius: 999px;
  padding: 9px 20px; font-family: var(--f-num); font-weight: 700; font-size: 13px;
  transition: transform .18s, background-color .18s;
}
.nav .nav-cta:hover { background: #FFC65C; color: #4A3407; transform: translateY(-2px); }

.nav-toggle { display: none; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); border-radius: 2px; margin: 5px 0; }
.nav-toggle em { position: absolute; left: -9999px; }

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .nav {
    position: fixed; top: 70px; right: 0; bottom: 0; left: 0;
    background: var(--cream); flex-direction: column; justify-content: center; gap: 6px;
    font-family: var(--f-disp); font-size: 19px;
    opacity: 0; transform: translateY(-10px); pointer-events: none;
    transition: opacity .22s, transform .22s;
  }
  .nav a { padding: 12px 0; }
  .nav.open { opacity: 1; transform: none; pointer-events: auto; }
}

/* ---------- ヒーロー ---------- */

.hero {
  position: relative;
  background:
    radial-gradient(circle at 12% 18%, rgba(242, 179, 61, .22), transparent 42%),
    radial-gradient(circle at 88% 12%, rgba(127, 178, 216, .22), transparent 44%),
    radial-gradient(circle at 72% 82%, rgba(111, 168, 90, .20), transparent 46%),
    var(--cream-2);
  padding: clamp(58px, 10vw, 108px) 0 clamp(70px, 10vw, 120px);
  text-align: center;
}
.hero-in { width: min(760px, 100% - var(--gut) * 2); margin-inline: auto; position: relative; z-index: 1; }
.hero-eyebrow {
  display: inline-block; background: #fff; border: 1px solid var(--line);
  border-radius: 999px; padding: 5px 18px; font-size: 12.5px; color: var(--ink-2);
}
.hero-title {
  margin-top: 24px;
  font-family: var(--f-disp); font-weight: 500;
  font-size: clamp(32px, 7.4vw, 62px); line-height: 1.45; letter-spacing: .01em;
}
.hero-lead { margin-top: 24px; font-size: 15px; line-height: 2.2; color: var(--ink-2); }
.hero-note { margin-top: 12px; font-size: 12.5px; color: var(--ink-2); }
.hero-wave { position: absolute; left: 0; right: 0; bottom: -1px; width: 100%; height: clamp(40px, 6vw, 78px); display: block; }

.btn {
  display: inline-block; border-radius: 999px;
  padding: 15px 38px; font-family: var(--f-num); font-weight: 700; font-size: 15.5px;
  transition: transform .18s, background-color .18s, box-shadow .18s;
}
.btn-main { margin-top: 30px; background: var(--wakaba); color: #fff; box-shadow: 0 6px 0 var(--wakaba-d); }
.btn-main:hover { background: var(--wakaba-d); transform: translateY(3px); box-shadow: 0 3px 0 var(--wakaba-d); }

/* ---------- セクション ---------- */

.section { padding: clamp(56px, 9vw, 100px) 0; }
.sec-head { margin-bottom: 34px; }
.sec-head-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.sec-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--f-num); font-weight: 700; font-size: 12.5px; color: var(--wakaba-d);
}
.sec-eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--himawari); }
.sec-title { margin-top: 10px; font-family: var(--f-disp); font-weight: 500; font-size: clamp(23px, 4.2vw, 33px); line-height: 1.5; }
.sec-sub { margin-top: 12px; font-size: 13.5px; color: var(--ink-2); max-width: 46em; }
.text-link { font-family: var(--f-num); font-weight: 700; font-size: 13.5px; color: var(--wakaba-d); }
.text-link:hover { text-decoration: underline; }
.empty { color: var(--ink-2); padding: 26px 0; }

/* ---------- コース ---------- */

.course-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(258px, 1fr)); gap: 22px; }
.course {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 28px 26px 26px; position: relative; overflow: hidden;
}
.course::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 6px; }
.course-a::before { background: var(--himawari); }
.course-b::before { background: var(--wakaba); }
.course-c::before { background: var(--sora); }
.course-age { font-family: var(--f-num); font-weight: 700; font-size: 12.5px; color: var(--ink-2); }
.course-name { font-family: var(--f-disp); font-weight: 500; font-size: 26px; margin-top: 4px; }
.course-lead { margin-top: 10px; font-size: 14px; font-weight: 500; }
.course-body { margin-top: 12px; font-size: 13px; line-height: 1.95; color: var(--ink-2); }
.course-meta { margin-top: 20px; border-top: 1px dashed var(--line); padding-top: 14px; display: grid; gap: 4px; }
.course-meta > div { display: flex; gap: 14px; font-size: 13.5px; }
.course-meta dt { flex: 0 0 42px; color: var(--ink-2); font-size: 12px; }
.course-meta dd { margin: 0; }
.course-meta b { font-family: var(--f-num); font-size: 20px; }

/* ---------- 鍵盤タイムライン（署名要素） ---------- */

.flow { background: var(--cream-2); }
.kb-scroll { overflow-x: auto; padding-bottom: 6px; -webkit-overflow-scrolling: touch; }
.kb {
  display: flex; gap: 4px; min-width: 720px;
  background: var(--ink); padding: 8px 8px 0; border-radius: 12px 12px 6px 6px;
}
.kb-key {
  position: relative; background: #fff;
  border-radius: 4px 4px 12px 12px;
  padding: 76px 14px 22px;
  min-width: 0;
  box-shadow: 0 4px 0 #D8CDB6;
}
.kb-key.has-black::after {
  content: ""; position: absolute; top: 0; right: -14px; z-index: 2;
  width: 22px; height: 58%;
  background: linear-gradient(180deg, #3A3129, #241E18);
  border-radius: 0 0 5px 5px;
}
.kb-key:last-child::after { display: none; }
.kb-min { display: block; font-family: var(--f-num); font-weight: 700; font-size: 24px; color: var(--wakaba-d); line-height: 1; }
.kb-min em { font-style: normal; font-size: 12px; margin-left: 2px; }
.kb-t { display: block; margin-top: 8px; font-family: var(--f-disp); font-size: 15px; line-height: 1.5; }
.kb-d { display: block; margin-top: 5px; font-size: 11.5px; color: var(--ink-2); line-height: 1.7; }
.kb-note { margin-top: 20px; font-size: 12.5px; color: var(--ink-2); }

/* ---------- カード ---------- */

.card-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(272px, 1fr)); gap: 22px; }
.card-list-full { margin: 26px 0 44px; grid-template-columns: repeat(auto-fill, minmax(238px, 1fr)); }
.card a {
  display: block; height: 100%; background: #fff;
  border: 1px solid var(--line); border-radius: var(--r); overflow: hidden;
  transition: transform .18s, box-shadow .18s;
}
.card a:hover { transform: translateY(-4px); box-shadow: 0 12px 24px rgba(69, 58, 46, .10); }
.card-img { display: block; aspect-ratio: 3 / 2; overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: cover; }
.card-body { display: block; padding: 20px 22px 24px; }
.card-meta { display: flex; align-items: center; gap: 10px; font-size: 11.5px; color: var(--ink-2); }
.card-meta b { font-weight: 400; background: var(--cream-2); border-radius: 999px; padding: 2px 11px; font-size: 11px; }
.card-title { display: block; margin-top: 9px; font-family: var(--f-disp); font-size: 17px; line-height: 1.65; }
.card-ex { display: block; margin-top: 8px; font-size: 12.5px; color: var(--ink-2); line-height: 1.9; }

/* ---------- FAQ ---------- */

.faq-in { max-width: 760px; }
.qa { background: #fff; border: 1px solid var(--line); border-radius: 14px; margin-bottom: 12px; }
.qa summary {
  list-style: none; cursor: pointer; padding: 18px 52px 18px 22px;
  font-family: var(--f-disp); font-size: 15.5px; line-height: 1.7; position: relative;
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after {
  content: ""; position: absolute; right: 22px; top: 50%;
  width: 11px; height: 11px; margin-top: -7px;
  border-right: 2px solid var(--wakaba); border-bottom: 2px solid var(--wakaba);
  transform: rotate(45deg); transition: transform .2s;
}
.qa[open] summary::after { transform: rotate(-135deg); margin-top: -3px; }
.qa p { padding: 0 22px 22px; font-size: 13.5px; color: var(--ink-2); line-height: 2.05; }

/* ---------- アクセス ---------- */

.access-in { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .85fr); gap: clamp(28px, 5vw, 56px); align-items: start; }
.info-table { width: 100%; margin-top: 22px; }
.info-table th, .info-table td { text-align: left; padding: 12px 0; border-bottom: 1px dashed var(--line); font-size: 14px; vertical-align: top; }
.info-table th { width: 104px; font-weight: 500; color: var(--ink-2); font-size: 12.5px; }
.access-note { margin-top: 18px; font-size: 13px; color: var(--ink-2); }

.access-card { background: var(--wakaba); color: #fff; border-radius: var(--r); padding: 26px 24px; }
.access-card-t { font-family: var(--f-num); font-weight: 700; font-size: 15px; }
.access-card ul { margin-top: 14px; }
.access-card li { display: flex; gap: 14px; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.28); font-size: 14.5px; }
.access-card span {
  width: 26px; height: 26px; flex: 0 0 26px; border-radius: 50%;
  background: #fff; color: var(--wakaba-d); display: grid; place-items: center;
  font-family: var(--f-num); font-weight: 700; font-size: 13px;
}
.access-card-f { margin-top: 14px; font-size: 11.5px; color: rgba(255,255,255,.8); }

@media (max-width: 800px) { .access-in { grid-template-columns: 1fr; } }

/* ---------- 下層 ---------- */

.page-head { background: var(--cream-2); padding: clamp(36px, 6vw, 64px) 0; }
.page-title { margin-top: 10px; font-family: var(--f-disp); font-weight: 500; font-size: clamp(25px, 5vw, 38px); line-height: 1.45; }
.page-lead { margin-top: 14px; font-size: 14px; color: var(--ink-2); max-width: 44em; }

.tabs { display: flex; flex-wrap: wrap; gap: 8px; padding-top: 30px; }
.tabs a { font-size: 13px; padding: 7px 18px; border-radius: 999px; border: 1px solid var(--line); background: #fff; color: var(--ink-2); }
.tabs a:hover { border-color: var(--wakaba); color: var(--wakaba-d); }
.tabs a.on { background: var(--wakaba); border-color: var(--wakaba); color: #fff; }

.entry { padding: clamp(30px, 5vw, 54px) 0 clamp(56px, 9vw, 92px); }
.crumb { font-size: 12px; color: var(--ink-2); }
.entry-head { margin-top: 22px; }
.entry-meta { display: flex; align-items: center; gap: 12px; font-size: 12.5px; color: var(--ink-2); }
.entry-meta b { font-weight: 400; background: var(--cream-2); border-radius: 999px; padding: 3px 12px; font-size: 11.5px; }
.entry-title { margin-top: 12px; font-family: var(--f-disp); font-weight: 500; font-size: clamp(23px, 4.4vw, 33px); line-height: 1.55; }
.entry-main { margin: 30px 0; border-radius: var(--r); overflow: hidden; }
.entry-body { margin-top: 28px; font-size: 15.5px; line-height: 2.2; }
.entry-body a { color: var(--wakaba-d); border-bottom: 1px solid currentColor; }
.entry-subs { margin-top: 32px; display: grid; gap: 18px; }
.entry-subs figure { border-radius: var(--r); overflow: hidden; }
.entry-links { margin-top: 32px; display: grid; gap: 10px; }
.entry-links a {
  display: block; background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 14px 20px; font-size: 14px;
}
.entry-links a:hover { border-color: var(--wakaba); color: var(--wakaba-d); }

.pager { margin-top: 44px; padding-top: 24px; border-top: 1px dashed var(--line); display: flex; justify-content: space-between; gap: 18px; }
.pager a { max-width: 46%; }
.pager span { display: block; font-size: 11px; color: var(--ink-2); }
.pager b { display: block; margin-top: 4px; font-family: var(--f-disp); font-weight: 500; font-size: 13.5px; line-height: 1.65; }
.pager-next { text-align: right; }
.back-row { margin: 36px 0 0; }
.notfound { padding: 70px 0; }

/* ---------- フッター ---------- */

.foot { background: var(--cream-2); padding-top: 0; margin-top: clamp(40px, 6vw, 70px); }
.foot-keys { display: flex; gap: 2px; height: 26px; }
.foot-keys span { flex: 1; background: #fff; border-radius: 0 0 4px 4px; }
.foot-keys span:nth-child(3n+2) { background: var(--ink); flex: .6; }

.foot-in {
  width: min(1060px, 100% - var(--gut) * 2); margin-inline: auto;
  padding-top: clamp(36px, 6vw, 56px);
  display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, .8fr) auto;
  gap: clamp(26px, 5vw, 52px); align-items: start;
}
.foot-name { font-family: var(--f-disp); font-size: 19px; }
.foot-sub { margin-top: 6px; font-size: 13px; color: var(--ink-2); }
.foot-sub a:hover { color: var(--wakaba-d); }
.foot-nav li { border-bottom: 1px dashed var(--line); }
.foot-nav a { display: block; padding: 9px 0; font-size: 13.5px; }
.foot-nav a:hover { color: var(--wakaba-d); }
.foot-sns { display: flex; gap: 10px; }
.foot-sns a {
  width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center;
  background: #fff; border: 1px solid var(--line); color: var(--ink-2);
}
.foot-sns a:hover { border-color: var(--wakaba); color: var(--wakaba-d); }

.copy {
  width: min(1060px, 100% - var(--gut) * 2); margin: clamp(34px, 5vw, 54px) auto 0;
  padding: 16px 0; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; font-size: 11.5px; color: var(--ink-2);
}
.copy a:hover { color: var(--wakaba-d); }

@media (max-width: 860px) { .foot-in { grid-template-columns: 1fr; } }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* ---------- MOBILE_THUMB_STYLE（config.php） ---------- */

/* 'small'：スマホで写真を左、文字を右に並べる */
@media (max-width: 560px) {
  .card-list.thumb-small a { display: grid; grid-template-columns: 116px minmax(0, 1fr); }
  .card-list.thumb-small .card-img { aspect-ratio: 1 / 1; height: 100%; }
  .card-list.thumb-small .card-body { padding: 14px 16px 16px; }
  .card-list.thumb-small .card-ex { display: none; }
}

/* 画像が無い記事のプレースホルダ（assets/img/no-image.svg） */
.card-img .no-img { object-fit: contain; background: var(--cream-2); padding: 12%; }

/* ---------- お問い合わせ（ヘッダーの「お問い合わせ」から #contact へ） ---------- */

.contact { background: var(--cream-2); padding: clamp(52px, 8vw, 88px) 0; text-align: center; scroll-margin-top: 86px; }
.contact-title { margin-top: 12px; font-family: var(--f-disp); font-weight: 500; font-size: clamp(21px, 3.8vw, 29px); }
.contact-lead { margin-top: 14px; font-size: 13.5px; color: var(--ink-2); max-width: 32em; margin-inline: auto; }
.contact-btn { margin-top: 24px; }