/* bf12-lessons と同じ色と書体（ほぼ黒の地 × マスタード） */
:root {
  --bg: #0e0e0d;
  --bg-2: #131312;
  --surface: #181817;
  --surface-2: #222220;
  --ink: #f2f1ec;
  --muted: #b4b3ac;
  --muted-2: #8d8c86;
  --line: rgba(242, 241, 236, 0.12);
  --line-strong: rgba(242, 241, 236, 0.24);
  --accent: #f2c230;
  --accent-ink: #1a1402;
  --accent-soft: rgba(242, 194, 48, 0.12);
  --font-display: "Anton", "Archivo", sans-serif;
  --font-body: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --gutter: 20px;
  --max: 1080px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--font-body); font-size: 16px; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.display { font-family: var(--font-display); font-weight: 400; letter-spacing: 0.01em; line-height: 1.02; text-transform: uppercase; }
.eyebrow { font-size: 12px; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); margin: 0 0 12px; }
.muted { color: var(--muted); }

header.top { border-bottom: 1px solid var(--line); }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { font-family: var(--font-display); font-size: 20px; letter-spacing: 0.04em; text-decoration: none; display: inline-flex; align-items: center; }
.brand-crest { width: 40px; height: 40px; margin-right: 12px; display: block; flex: none; }
.brand small { font-family: var(--font-body); font-size: 12px; color: var(--muted); letter-spacing: 0.08em; margin-left: 8px; text-transform: none; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 52px; padding: 0 28px; border-radius: 999px; border: 0;
  background: var(--accent); color: var(--accent-ink); font: 700 16px/1 var(--font-body);
  text-decoration: none; cursor: pointer; transition: transform .15s ease, filter .15s ease;
}
.btn:hover { filter: brightness(1.06); transform: translateY(-1px); }
.btn:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line-strong); }
.btn.small { min-height: 40px; padding: 0 18px; font-size: 14px; }

section { padding: 72px 0; border-bottom: 1px solid var(--line); }
section h2 { font-size: clamp(32px, 6vw, 52px); margin: 0 0 20px; }

/* hero */
.hero { padding: 56px 0 64px; }
.hero h1 { font-size: clamp(44px, 9vw, 96px); margin: 0 0 20px; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .lede { font-size: clamp(17px, 2.2vw, 20px); color: var(--muted); max-width: 640px; margin: 0 0 28px; }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; }
.cta-note { font-size: 14px; color: var(--muted); }
.stats { display: flex; flex-wrap: wrap; gap: 28px; margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line); }
.stats div { min-width: 120px; }
.stats b { display: block; font-family: var(--font-display); font-size: 34px; font-weight: 400; line-height: 1; }
.stats span { font-size: 13px; color: var(--muted); }

/* sample */
.sample-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 36px; align-items: center; }
.sample-copy p { color: var(--muted); }
@media (max-width: 800px) { .sample-grid { grid-template-columns: 1fr; } }

/* player */
.sp-frame { position: relative; aspect-ratio: 16 / 9; background: #000; border-radius: 3px; overflow: hidden; }
.sp-yt, .sp-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.sp-sub { position: absolute; left: 4%; right: 4%; bottom: 13%; text-align: center; pointer-events: none; opacity: 0; transition: opacity .12s; }
.sp-sub.is-on { opacity: 1; }
.sp-sub span {
  display: inline; padding: 0.12em 0.45em; background: rgba(0, 0, 0, 0.78); color: #fff;
  font: 600 clamp(14px, 2.3vw, 22px)/1.45 var(--font-body); box-decoration-break: clone; -webkit-box-decoration-break: clone;
}
.sp-big .sp-sub span { font-size: clamp(17px, 3.1vw, 30px); }
.sp-frame:fullscreen .sp-sub span { font-size: 3.2vh; }
.sp-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.sp-bar button {
  min-height: 36px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--line-strong);
  background: transparent; color: var(--muted); font: 600 13px/1 var(--font-body); cursor: pointer;
}
.sp-bar button:hover { color: var(--ink); border-color: var(--ink); }
.sp-bar .sp-cc[aria-pressed="true"] { color: var(--accent); border-color: var(--accent); }
.sp-bar .sp-audio { color: var(--accent); border-color: var(--accent); }

/* lessons */
.lessons { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 22px; margin-top: 28px; }
.lesson img { aspect-ratio: 16 / 9; object-fit: cover; width: 100%; height: auto; border-radius: 3px; background: var(--surface); }
.lesson h3 { font-family: var(--font-display); font-weight: 400; font-size: 22px; line-height: 1.1; margin: 12px 0 6px; text-transform: uppercase; }
.lesson h3 span { color: var(--accent); margin-right: 8px; }
.lesson p { margin: 0; font-size: 14px; color: var(--muted); }
.lesson .len { font-size: 12px; color: var(--muted-2); margin-top: 6px; }

/* steps / about */
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
@media (max-width: 800px) { .two { grid-template-columns: 1fr; } }
.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; }
.steps li { counter-increment: s; position: relative; padding: 0 0 22px 52px; }
.steps li::before { content: counter(s); position: absolute; left: 0; top: -2px; font-family: var(--font-display); font-size: 30px; color: var(--accent); }
.steps b { display: block; }
.steps span { color: var(--muted); font-size: 15px; }

/* pricing */
.price-card { max-width: 520px; margin: 0 auto; padding: 36px 28px; border: 1px solid var(--accent); border-radius: 6px; background: var(--accent-soft); text-align: center; }
.price-card .amount { font-family: var(--font-display); font-size: 72px; line-height: 1; margin: 8px 0 4px; }
.price-card .amount small { font-family: var(--font-body); font-size: 18px; color: var(--muted); }
.price-card ul { list-style: none; padding: 0; margin: 22px 0 26px; text-align: left; }
.price-card li { padding: 8px 0 8px 28px; border-bottom: 1px solid var(--line); position: relative; }
.price-card li::before { content: "✓"; position: absolute; left: 4px; color: var(--accent); font-weight: 700; }
.price-card .btn { width: 100%; }

/* faq */
details { border-bottom: 1px solid var(--line); padding: 16px 0; }
summary { cursor: pointer; font-weight: 700; font-size: 17px; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; float: right; color: var(--accent); font-size: 22px; line-height: 1; }
details[open] summary::after { content: "–"; }
details p { color: var(--muted); margin: 10px 0 0; }

/* waitlist */
.join { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.join input, .join select {
  min-height: 52px; padding: 0 16px; border-radius: 999px; border: 1px solid var(--line-strong);
  background: var(--surface); color: var(--ink); font: 16px var(--font-body);
}
.join input { flex: 1 1 240px; }
.join-msg { margin-top: 12px; color: var(--accent); min-height: 1.6em; }

footer { padding: 36px 0 60px; color: var(--muted-2); font-size: 13px; }

/* members */
.member-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 28px; padding-top: 28px; padding-bottom: 60px; }
@media (max-width: 900px) { .member-layout { grid-template-columns: 1fr; } }
.now h1 { font-size: clamp(30px, 5vw, 46px); margin: 18px 0 6px; }
.chapters { list-style: none; padding: 0; margin: 18px 0 0; border-top: 1px solid var(--line); }
.chapters button {
  display: flex; gap: 14px; width: 100%; padding: 10px 4px; text-align: left; background: none; border: 0;
  border-bottom: 1px solid var(--line); color: var(--ink); font: 15px/1.4 var(--font-body); cursor: pointer;
}
.chapters button:hover { background: var(--surface); }
.chapters time { color: var(--accent); font-variant-numeric: tabular-nums; min-width: 58px; }
.side h2 { font-size: 22px; margin: 0 0 12px; }
.pick { list-style: none; padding: 0; margin: 0; }
.pick a { display: grid; grid-template-columns: 96px 1fr; gap: 12px; align-items: center; padding: 8px; border-radius: 4px; text-decoration: none; }
.pick a:hover { background: var(--surface); }
.pick a[aria-current="true"] { background: var(--surface-2); outline: 1px solid var(--accent); }
.pick img { aspect-ratio: 16 / 9; object-fit: cover; border-radius: 2px; }
.pick b { font-family: var(--font-display); font-weight: 400; font-size: 17px; line-height: 1.1; text-transform: uppercase; }
.pick b span { color: var(--accent); margin-right: 6px; }
.pick small { display: block; color: var(--muted-2); font-size: 12px; }
.notice { margin: 20px 0 0; padding: 14px 16px; border: 1px solid var(--accent); border-radius: 4px; background: var(--accent-soft); font-size: 15px; }
.notice[hidden] { display: none; }
.btn { white-space: nowrap; }
@media (max-width: 480px) {
  .brand small { display: none; }
  header.top .btn.small { padding: 0 14px; }
}

/* KOTOWARI（2026-10-17） */
.hero .lede b { color: var(--ink); }
.statement { border-left: 3px solid var(--accent); padding: 4px 0 4px 16px; margin: 0 0 28px; max-width: 640px; }
.statement p { margin: 0; color: var(--ink); font-size: 16px; }
.cta-row + .cta-note { margin-top: 12px; }
.price-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 20px; align-items: start; }
.price-grid .price-card { max-width: none; margin: 0; }
.price-grid .price-card:not(.main) { border-color: var(--line-strong); background: transparent; }
@media (max-width: 760px) { .price-grid { grid-template-columns: 1fr; } }
.side .notice .btn { display: inline-flex; }

/* 歴史の話への注釈（字幕とは別に上側） */
.sp-note { position: absolute; left: 4%; right: 4%; top: 5%; pointer-events: none; opacity: 0; transition: opacity .2s; }
.sp-note.is-on { opacity: 1; }
.sp-note span { display: inline-block; max-width: 100%; padding: .35em .7em; background: rgba(242, 194, 48, .92); color: #1a1402;
  font: 600 clamp(12px, 1.8vw, 17px)/1.4 var(--font-body); border-radius: 3px; }
/* シーズン1〜3を並べる値段の欄と、決済リンクがまだ無いときの「Coming soon」（押せない） */
.price-grid.seasons { grid-template-columns: repeat(3, 1fr); }
.price-grid + .price-grid { margin-top: 20px; }
@media (max-width: 760px) { .price-grid.seasons { grid-template-columns: 1fr; } }
.btn.is-soon { opacity: .5; cursor: default; pointer-events: none; }
.btn.is-soon:hover { filter: none; transform: none; }

.sp-blocked { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: center; gap: .6em; padding: 6%; background: #000; color: #fff; text-align: center; font-size: 15px; line-height: 1.5; }
.sp-blocked a { color: inherit; text-decoration: underline; }
.sp-blocked .sp-blocked-btn { display: inline-block; padding: .6em 1.2em; border-radius: 999px; background: var(--accent); color: var(--accent-ink); text-decoration: none; font-weight: 600; }