/* AIR合宿 LP ― 静かで上質（雪の白・グレー）に、古民家の木と火の温かさを差し色で */
:root {
  --snow: #f7f6f2;
  --paper: #efece5;
  --ink: #23272c;
  --ink-soft: #4a5058;
  --mist: #8b9098;
  --line: #dcd7cc;
  --wood: #7a5434;
  --ember: #b8682f;
  --ember-dark: #9a5423;
  --night: #1d2126;
  --line-green: #06c755;
  --serif: "Shippori Mincho B1", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --sans: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", system-ui, sans-serif;
  --wrap: 1080px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--snow);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: .02em;
}
img { max-width: 100%; display: block; }
a { color: var(--ember-dark); }
strong { font-weight: 700; }
.sp { display: none; }
/* 日本語は文節の切れ目で改行し、最後の行に1〜2文字だけ残らないようにする（対応していないブラウザでは今までどおり） */
h1, h2, h3, p, li, dd, td, figcaption { word-break: auto-phrase; text-wrap: pretty; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.wrap--narrow { max-width: 760px; }

/* 見出し */
.eyebrow {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: .25em;
  color: var(--ember);
  text-align: center;
  text-transform: uppercase;
}
.h2 {
  margin: 0 0 32px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.6;
  text-align: center;
}
.h2--left { text-align: left; font-size: clamp(22px, 2.6vw, 30px); }
.h3 { margin: 0 0 12px; font-family: var(--serif); font-size: 22px; line-height: 1.6; }
.lead { font-size: 18px; text-align: center; margin: 0 auto 24px; max-width: 760px; }
.center { text-align: center; }
.small { font-size: 13px; color: var(--mist); }

/* ボタン */
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.cta--center { justify-content: center; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 56px; padding: 0 32px;
  border: 0; border-radius: 999px;
  font-family: var(--sans); font-size: 17px; font-weight: 700;
  text-decoration: none; cursor: pointer;
  transition: background .2s, transform .2s;
}
.btn--main { background: var(--ember); color: #fff; box-shadow: 0 6px 20px rgba(184,104,47,.3); }
.btn--main:hover { background: var(--ember-dark); transform: translateY(-1px); }
.btn--line { background: #fff; color: var(--ink); border: 1px solid var(--line); }
.btn--line::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--line-green); margin-right: 10px; }
.btn--block { width: 100%; }
.btn[disabled] { opacity: .6; cursor: wait; }

/* 1. ファーストビュー */
.hero { position: relative; min-height: 100svh; display: flex; align-items: center; color: #fff; overflow: hidden; }
.hero__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 65% center; }
.hero__shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(20,24,30,.78) 0%, rgba(20,24,30,.45) 45%, rgba(20,24,30,0) 75%); }
.hero__inner { position: relative; width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 80px 24px; }
.hero__badge { display: inline-block; margin: 0 0 20px; padding: 2px 14px; border: 1px solid rgba(255,255,255,.7); border-radius: 999px; font-size: 13px; letter-spacing: .15em; }
.hero__title { margin: 0 0 20px; font-family: var(--serif); font-weight: 700; font-size: clamp(30px, 5vw, 56px); line-height: 1.5; text-shadow: 0 2px 16px rgba(0,0,0,.35); }
.hero__name { margin: 0 0 28px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 16px; }
.logo { font-family: var(--serif); font-size: 28px; letter-spacing: .12em; }
.hero__sub { font-size: 15px; opacity: .9; }
.hero__facts { margin: 0; display: grid; gap: 8px; max-width: 560px; }
.hero__facts div { display: grid; grid-template-columns: 4.5em 1fr; gap: 12px; padding: 8px 0; border-top: 1px solid rgba(255,255,255,.25); }
.hero__facts dt { font-size: 13px; opacity: .8; padding-top: 2px; }
.hero__facts dd { margin: 0; font-size: 15px; line-height: 1.7; }
.hero__note { margin: 12px 0 0; font-size: 13px; opacity: .85; }
.hero__lead { margin: 0 0 24px; font-size: clamp(15px, 1.7vw, 18px); line-height: 1.9; text-shadow: 0 1px 10px rgba(0,0,0,.4); }
.hero__caption { position: absolute; right: 16px; bottom: 10px; margin: 0; font-size: 11px; color: rgba(255,255,255,.75); }

/* 2. こんなお悩み */
.pains { list-style: none; margin: 0 auto; padding: 0; max-width: 920px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px 24px; }
.pains li {
  position: relative; padding: 20px 24px 20px 56px;
  background: #fff; border: 1px solid var(--line); border-radius: 6px;
  font-size: 16px; line-height: 1.8;
}
.pains li::before {
  content: "“"; position: absolute; left: 18px; top: 8px;
  font-family: var(--serif); font-size: 44px; line-height: 1; color: var(--ember);
}
.pains__bridge { margin: 48px 0 0; text-align: center; font-family: var(--serif); font-size: clamp(19px, 2.4vw, 24px); line-height: 1.8; }
.pains__bridge strong { color: var(--ember-dark); border-bottom: 2px solid rgba(184,104,47,.35); }
.btn--sub { background: rgba(255,255,255,.12); color: #fff; border: 1px solid rgba(255,255,255,.7); }
.btn--sub:hover { background: rgba(255,255,255,.22); }
.btn--small { min-height: 48px; padding: 0 22px; font-size: 15px; background: var(--ink); color: #fff; }
.btn--small:hover { background: #000; }
.h2__sub { display: block; margin-top: 4px; font-size: .6em; color: var(--ember-dark); }
.radios--stack { flex-direction: column; gap: 10px; }
.briefing-closed { margin: 32px 0 0; padding: 24px; background: #fff; border: 1px solid var(--line); border-radius: 6px; text-align: center; line-height: 1.9; }
.radios label.is-past { color: var(--mist); text-decoration: line-through; }

/* DMの番号の入力欄（ヒーロー右上の小さな入口） */
.codebox { position: absolute; top: 16px; right: 16px; z-index: 2; color: #fff; font-size: 13px; }
.codebox summary { cursor: pointer; list-style: none; padding: 6px 14px; border: 1px solid rgba(255,255,255,.6); border-radius: 999px; background: rgba(20,24,30,.35); backdrop-filter: blur(4px); }
.codebox summary::-webkit-details-marker { display: none; }
.codebox[open] summary { border-color: #fff; }
.codebox__form { position: absolute; right: 0; top: calc(100% + 8px); width: 280px; padding: 16px; background: #fff; color: var(--ink); border-radius: 6px; box-shadow: 0 10px 30px rgba(0,0,0,.25); }
.codebox__form label { display: block; margin-bottom: 8px; font-size: 13px; color: var(--ink-soft); }
.codebox__row { display: flex; gap: 8px; }
.codebox__row input { flex: 1; min-width: 0; text-transform: uppercase; letter-spacing: .15em; }
.codebox__row .btn { width: auto; }
.codebox__msg { margin: 8px 0 0; font-size: 12px; color: var(--ember-dark); line-height: 1.6; }
.field__hint { margin: 6px 0 0; font-size: 12px; color: var(--mist); line-height: 1.7; }
.fineprint { margin: 32px 0 0; padding-left: 1.2em; font-size: 12px; color: var(--mist); line-height: 1.8; }

/* セクション */
.sec { padding: 104px 0; }
.sec--paper { background: var(--paper); }
.sec--dark { background: var(--night); color: #e9e6df; }
.sec--dark .eyebrow { color: #d89a62; }
.sec--image { position: relative; color: var(--ink); overflow: hidden; }
.sec__bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.sec__overlay { position: relative; max-width: 760px; padding-top: 24px; padding-bottom: 24px; background: rgba(247,246,242,.86); backdrop-filter: blur(2px); border-radius: 4px; padding-left: 40px; padding-right: 40px; }
.sec__overlay p { margin: 0 0 16px; }

/* 2. チェックリスト */
.checks { list-style: none; margin: 0 auto 40px; padding: 0; max-width: 720px; }
.checks li { position: relative; padding: 16px 0 16px 40px; border-bottom: 1px solid var(--line); font-size: 17px; }
.checks li::before { content: ""; position: absolute; left: 6px; top: 24px; width: 16px; height: 9px; border-left: 2px solid var(--ember); border-bottom: 2px solid var(--ember); transform: rotate(-45deg); }

/* カード */
.cards { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: 6px; padding: 32px 28px; }
.card h3 { margin: 8px 0 12px; font-family: var(--serif); font-size: 19px; line-height: 1.6; }
.card p { margin: 0; font-size: 15px; color: var(--ink-soft); }
.card__no { font-family: var(--serif); color: var(--ember); font-size: 14px; letter-spacing: .1em; }
.cards--dark .card { background: #262b31; border-color: #363c44; }
.cards--dark .card p { color: #c5c1b8; }

/* 左右の並び */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; margin-bottom: 64px; }
.split:last-child { margin-bottom: 0; }
.split--rev .split__img { order: 2; }
.split__img { margin: 0; }
.split__img img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; border-radius: 6px; }
/* 画像04はノートPCのロゴに崩れた文字があるので、右側を切る */
.split__img--square img { aspect-ratio: 1 / 1; object-position: left center; }
figcaption { margin-top: 6px; font-size: 12px; color: var(--mist); }
.split__body p { margin: 0 0 16px; }
.note-strong { font-weight: 700; color: var(--wood); }
.message { font-size: 16px; }
.sign { margin-top: 28px !important; font-size: 14px; color: var(--ink-soft); }
.sign span { font-family: var(--serif); font-size: 22px; color: var(--ink); letter-spacing: .15em; }

/* 6. 2日間の流れ */
.days { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; margin-bottom: 16px; }
.day { background: #fff; border: 1px solid var(--line); border-radius: 6px; padding: 32px; }
.day__title { margin: 0 0 20px; font-family: var(--serif); font-size: 20px; }
.day__title span { display: block; font-size: 13px; letter-spacing: .2em; color: var(--ember); }
.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { display: grid; grid-template-columns: 4em 1fr; gap: 12px; padding: 10px 0; border-top: 1px dashed var(--line); font-size: 15px; line-height: 1.7; }
.timeline time { font-family: var(--serif); color: var(--wood); font-weight: 700; }

/* 8. 開催概要 */
.outline { display: grid; grid-template-columns: 3fr 2fr; gap: 40px; align-items: start; margin-bottom: 16px; }
.outline__imgs { display: grid; gap: 20px; }
.outline__imgs figure { margin: 0; }
.outline__imgs img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; border-radius: 6px; }
.table { width: 100%; border-collapse: collapse; font-size: 15px; }
.table th, .table td { padding: 14px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; line-height: 1.8; }
.table th { width: 9em; font-weight: 500; color: var(--ink-soft); white-space: nowrap; }
.table--small { font-size: 13px; }
.table--small th { width: 12em; white-space: normal; }

/* 10. よくある質問 */
.faq { border-bottom: 1px solid var(--line); }
.faq summary { position: relative; padding: 20px 40px 20px 0; cursor: pointer; font-weight: 500; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 8px; top: 16px; font-size: 22px; color: var(--ember); }
.faq[open] summary::after { content: "−"; }
.faq p { margin: 0 0 20px; color: var(--ink-soft); font-size: 15px; }

/* 11. 申込みフォーム */
.form { margin-top: 32px; background: #fff; border: 1px solid var(--line); border-radius: 6px; padding: 40px; }
.field { margin: 0 0 20px; border: 0; padding: 0; min-width: 0; }
.field label, .field legend { display: block; margin-bottom: 6px; font-size: 14px; font-weight: 500; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.req { margin-left: 8px; padding: 0 6px; border-radius: 3px; background: var(--ember); color: #fff; font-size: 11px; vertical-align: 2px; }
input, textarea {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--line); border-radius: 4px;
  background: var(--snow); color: var(--ink);
  font: inherit; font-size: 16px; line-height: 1.6;
}
input:focus, textarea:focus { outline: 2px solid rgba(184,104,47,.35); border-color: var(--ember); background: #fff; }
.radios { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.radios label { display: flex; align-items: center; gap: 8px; font-weight: 400; font-size: 15px; margin: 0; }
.radios input, .consent input { width: auto; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.confirm { margin: 28px 0 20px; padding: 20px 24px; background: var(--paper); border-radius: 4px; }
.confirm h3 { margin: 0 0 8px; font-size: 15px; }
.confirm ul { margin: 0; padding-left: 1.2em; font-size: 13px; line-height: 1.8; color: var(--ink-soft); }
.consent { display: flex; gap: 10px; align-items: flex-start; margin: 0 0 20px; font-size: 14px; }
.consent input { margin-top: 6px; }
.form__msg { margin: 16px 0 0; min-height: 1.5em; font-size: 15px; text-align: center; }
.form__msg.is-error { color: #b3261e; }
.form__msg.is-ok { color: var(--wood); font-weight: 700; }
.form.is-done .field, .form.is-done .field-row, .form.is-done .confirm, .form.is-done .consent, .form.is-done button { display: none; }

/* 12. フッター */
.footer { padding: 72px 0 48px; background: var(--paper); border-top: 1px solid var(--line); }
.footer .h3 { font-size: 17px; }
.footer__links { margin: 24px 0 8px; font-size: 13px; }
.footer__copy { margin: 0; font-size: 12px; color: var(--mist); }

/* スマホ */
@media (max-width: 820px) {
  .sp { display: inline; }
  .pc { display: none; }
  .sec { padding: 72px 0; }
  .wrap { padding: 0 16px; }
  .hero { align-items: flex-end; }
  .hero__img { object-position: 72% center; }
  .hero__shade { background: linear-gradient(180deg, rgba(20,24,30,.15) 0%, rgba(20,24,30,.55) 40%, rgba(20,24,30,.85) 100%); }
  .hero__inner { padding: 120px 16px 48px; }
  .btn { width: 100%; }
  .cards, .days, .split, .outline, .field-row, .pains { grid-template-columns: 1fr; }
  .pains li br { display: none; }
  .codebox { top: 12px; right: 12px; }
  .hero__lead br { display: none; }
  .split { gap: 24px; margin-bottom: 48px; }
  .split--rev .split__img { order: 0; }
  .sec__overlay { padding-left: 20px; padding-right: 20px; }
  .lead { font-size: 16px; text-align: left; }
  .lead br, .center br { display: none; }
  .form { padding: 24px 16px; }
  .table th { width: 6.5em; white-space: normal; }
  .table--small th { width: 7.5em; }
  .day { padding: 24px 20px; }
}

/* 自動化の実例 */
.examples { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 24px; }
.example { background: #fff; border: 1px solid var(--line); border-radius: 6px; padding: 24px; }
.example__tag { margin: 0 0 4px; font-size: 12px; color: var(--ember); letter-spacing: .05em; }
.example h3 { margin: 0 0 16px; font-family: var(--serif); font-size: 19px; }
.example dl { margin: 0; display: grid; gap: 10px; }
.example dl div { display: grid; grid-template-columns: 3.5em 1fr; gap: 8px; align-items: start; }
.example dt { padding: 2px 0; border-radius: 3px; font-size: 12px; font-weight: 700; text-align: center; }
.example dd { margin: 0; font-size: 14px; line-height: 1.75; }
.example__before dt { background: var(--paper); color: var(--ink-soft); }
.example__before dd { color: var(--ink-soft); }
.example__after dt { background: var(--ember); color: #fff; }
.example__after dd { font-weight: 500; }
@media (max-width: 820px) {
  .examples { grid-template-columns: 1fr; }
}

/* 配信停止ページ */
.stop { min-height: 100svh; }
.stop__code { text-align: center; margin-bottom: 24px; }
.stop__label { margin: 0; font-size: 13px; color: var(--ink-soft); }
.stop__value { margin: 4px 0 8px; font-family: var(--serif); font-size: 32px; letter-spacing: .2em; }
.stop__alt { margin-top: 28px; }

/* 見積書づくりの見本動画 */
.demo { margin: 0 auto 40px; max-width: 960px; }
.demo__video { display: block; width: 100%; aspect-ratio: 16 / 9; border-radius: 8px; background: #e9e6df; box-shadow: 0 18px 40px rgba(35, 39, 44, .14); }
.demo__caption { margin-top: 12px; font-size: 14px; color: var(--ink-soft); line-height: 1.8; }

/* オンライン合宿・スクールとの違い（「なぜ合宿なのか」の続きとして、上の余白をなくす） */
.sec--compare { padding-top: 0; }
.compare { width: 100%; margin: 0 0 12px; border-collapse: separate; border-spacing: 0; table-layout: fixed; background: #fff; border: 1px solid var(--line); border-radius: 6px; font-size: 15px; }
.compare th, .compare td { padding: 16px 18px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; line-height: 1.8; }
.compare tbody tr:last-child th, .compare tbody tr:last-child td { border-bottom: 0; }
.compare thead th { font-family: var(--serif); font-size: 17px; font-weight: 700; background: var(--paper); }
.compare thead th:first-child { width: 9em; border-top-left-radius: 6px; }
.compare thead th:last-child { border-top-right-radius: 6px; }
.compare__axis { font-family: var(--sans); font-size: 13px; font-weight: 500; color: var(--ink-soft); }
.compare tbody th { font-size: 14px; font-weight: 500; color: var(--ink-soft); }
.compare td { color: var(--ink-soft); }
.compare .is-air { background: #fbf4ec; color: var(--ink); font-weight: 500; border-left: 2px solid var(--ember); border-right: 2px solid var(--ember); }
.compare thead .is-air { background: var(--ember); color: #fff; border-color: var(--ember); }
.compare thead .is-air span { display: block; font-family: var(--sans); font-size: 12px; font-weight: 500; letter-spacing: .1em; opacity: .9; }
.compare tbody tr:last-child .is-air { border-bottom: 2px solid var(--ember); }
@media (max-width: 820px) {
  /* スマホは「比べるところ」ごとに、3つを縦に並べる */
  .compare, .compare tbody, .compare tr, .compare th, .compare td { display: block; width: auto; }
  .compare { background: none; border: 0; }
  .compare thead { display: none; }
  .compare tbody tr { margin-bottom: 16px; background: #fff; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
  .compare tbody tr:last-child th, .compare tbody tr:last-child td { border-bottom: 1px solid var(--line); }
  .compare tbody th { padding: 10px 16px; background: var(--paper); font-family: var(--serif); font-size: 16px; font-weight: 700; color: var(--ink); }
  .compare td { padding: 12px 16px; font-size: 15px; line-height: 1.75; }
  .compare td:last-child { border-bottom: 0 !important; }
  .compare td::before { content: attr(data-label); display: block; margin-bottom: 2px; font-size: 12px; font-weight: 700; color: var(--mist); }
  .compare .is-air { border: 0; border-left: 3px solid var(--ember); border-bottom: 1px solid var(--line); }
  .compare tbody tr:last-child .is-air { border-bottom: 1px solid var(--line); }
  .compare .is-air::before { color: var(--ember-dark); }
}