/* ============================================================
   📄 css/lp-base.css
   新規LP（大家塾 / 民泊開業サポート）共通スタイル。
   ──────────────────────────────────────────────
   黒・濃紺・グレー基調をベースに、各LPの :root で
   アクセント色を上書きする想定。

   各LPの <style> 内 :root で必ず以下を指定してください：
     --accent       : メインアクセント色（CTA / 強調）
     --accent-dark  : 暗色アクセント（ホバー）
     --accent-soft  : 淡色アクセント（背景）
     --hero-image   : ヒーロー背景画像のURL
   ============================================================ */

:root {
  /* デフォルトアクセント（大家塾の色） */
  --accent:       #E85D1A;
  --accent-dark:  #B8430F;
  --accent-soft:  rgba(232,93,26,0.10);
  --gold:         #C9A961;
  --gold-soft:    rgba(201,169,97,0.12);

  /* 黒・濃紺基調 */
  --ink:          #0E0E10;   /* ほぼ黒：本文・濃ヘッダー */
  --ink-2:        #18181B;   /* 一段濃いカード背景 */
  --ink-3:        #27272A;   /* ボーダー / 線 */
  --navy:         #0F1C3F;   /* 濃紺：HERO等の重ね */
  --gray-1:       #3F3F46;   /* グレー濃 */
  --gray-2:       #71717A;   /* グレー中 */
  --gray-3:       #A1A1AA;   /* グレー薄 */
  --paper:        #F4F2EE;   /* オフホワイト：背景の抜け */
  --paper-2:      #FAF8F4;   /* さらに明るい紙 */
  --white:        #FFFFFF;

  /* フォント */
  --font-ja:      'Noto Sans JP', sans-serif;
  --font-serif:   'Noto Serif JP', serif;
  --font-en:      'Montserrat', sans-serif;

  --radius:       12px;
  --radius-lg:    18px;
  --container:    1180px;
  --transition:   0.3s cubic-bezier(.2,.7,.2,1);
}

/* === Reset =================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-ja);
  color: var(--ink);
  background: var(--white);
  line-height: 1.85;
  letter-spacing: 0.02em;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: opacity .25s ease, color .25s ease; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* === Container =============================================== */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 900px; margin: 0 auto; padding: 0 24px; }
.container-wide { max-width: 1400px; margin: 0 auto; padding: 0 24px; }

/* === Section =============================================== */
.section { padding: 120px 0; position: relative; }
.section.dark { background: var(--ink); color: var(--white); }
.section.darknavy { background: var(--navy); color: var(--white); }
.section.paper { background: var(--paper); }
.section.paper-2 { background: var(--paper-2); }
@media (max-width: 768px) { .section { padding: 80px 0; } }

.section-eyebrow {
  font-family: var(--font-en);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.32em;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}
.section-eyebrow::before {
  content: '';
  display: inline-block;
  width: 36px;
  height: 1px;
  background: var(--accent);
}
.section.dark .section-eyebrow,
.section.darknavy .section-eyebrow { color: var(--gold); }
.section.dark .section-eyebrow::before,
.section.darknavy .section-eyebrow::before { background: var(--gold); }

.section-title {
  font-size: clamp(1.9rem, 3.6vw, 2.8rem);
  font-weight: 900;
  line-height: 1.4;
  letter-spacing: 0.03em;
  margin-bottom: 22px;
}
.section-title em { font-style: normal; color: var(--accent); }
.section.dark .section-title em,
.section.darknavy .section-title em { color: var(--gold); }

.section-sub {
  color: var(--gray-2);
  font-size: 1rem;
  line-height: 1.95;
  max-width: 720px;
  margin-bottom: 60px;
}
.section.dark .section-sub,
.section.darknavy .section-sub { color: var(--gray-3); }

/* === Buttons =============================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 36px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.05em;
  transition: transform .3s ease, box-shadow .3s ease, background .3s ease, color .3s ease;
  box-shadow: 0 8px 24px rgba(0,0,0,0.10);
  white-space: nowrap;
}
.btn-line {
  background: #06C755;
  color: #fff;
}
.btn-line:hover { background: #05A649; transform: translateY(-2px); box-shadow: 0 14px 30px rgba(6,199,85,0.32); }

.btn-accent {
  background: var(--accent);
  color: #fff;
}
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 14px 30px rgba(0,0,0,0.18); }

.btn-outline {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--ink-3);
}
.btn-outline:hover { background: var(--ink); color: #fff; }

.btn-ghost-light {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.3);
}
.btn-ghost-light:hover { background: #fff; color: var(--ink); border-color: #fff; }

.btn-lg { padding: 22px 44px; font-size: 1.08rem; }
.btn-sm { padding: 12px 24px; font-size: 0.9rem; }

/* === HERO 共通 ============================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  color: #fff;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: var(--hero-image);
  background-size: cover;
  background-position: center;
  z-index: 0;
  filter: saturate(85%);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(14,14,16,0.55) 0%, rgba(14,14,16,0.80) 100%),
    linear-gradient(120deg, rgba(15,28,63,0.65) 0%, rgba(0,0,0,0) 50%);
  z-index: 1;
}
.hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: 140px 24px 100px;
  width: 100%;
}
.hero-eyebrow {
  font-family: var(--font-en);
  font-size: 0.78rem;
  letter-spacing: 0.32em;
  color: var(--gold);
  margin-bottom: 24px;
  display: inline-flex;
  align-items: center;
  gap: 14px;
}
.hero-eyebrow::before {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--gold);
}
.hero-title {
  font-size: clamp(2.2rem, 5.2vw, 4.2rem);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 28px;
  letter-spacing: 0.02em;
  text-shadow: 0 4px 28px rgba(0,0,0,0.4);
}
.hero-title em {
  font-style: normal;
  color: var(--accent);
  font-feature-settings: "palt";
}
.hero-sub {
  font-size: clamp(1rem, 1.6vw, 1.18rem);
  line-height: 2;
  max-width: 640px;
  margin-bottom: 44px;
  opacity: 0.95;
}
.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* === Card grid =============================================== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.card-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 900px) { .card-grid-3 { grid-template-columns: 1fr; } }

.card {
  background: #fff;
  border: 1px solid rgba(0,0,0,0.06);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 1px 2px rgba(0,0,0,0.04), 0 12px 32px rgba(0,0,0,0.04);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 3px 6px rgba(0,0,0,0.05), 0 28px 52px rgba(0,0,0,0.10);
}
.card.on-dark {
  background: var(--ink-2);
  border-color: var(--ink-3);
  color: #fff;
}
.card.on-dark:hover { border-color: var(--gold); }

/* === FAQ =============================================== */
.faq-item {
  border-bottom: 1px solid rgba(0,0,0,0.10);
  padding: 22px 0;
}
.faq-q {
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  color: var(--ink);
}
.faq-q::before {
  content: 'Q.';
  font-family: var(--font-en);
  color: var(--accent);
  font-weight: 900;
  margin-right: 12px;
}
.faq-a {
  color: var(--gray-1);
  font-size: 0.95rem;
  line-height: 2;
  padding-top: 14px;
  padding-left: 32px;
  display: none;
}
.faq-item.open .faq-a { display: block; }
.faq-item.open .faq-q .faq-toggle { transform: rotate(45deg); }
.faq-toggle {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-weight: 900;
  transition: transform .3s ease;
}

/* === Price card =============================================== */
.price-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  border: 1px solid rgba(0,0,0,0.08);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}
.price-card.featured {
  background: var(--ink);
  color: #fff;
  border-color: var(--gold);
  transform: scale(1.03);
  z-index: 1;
  box-shadow: 0 30px 60px rgba(0,0,0,0.25);
}
.price-card .badge {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--gold);
  color: var(--ink);
  font-family: var(--font-en);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.2em;
  padding: 6px 18px;
  border-radius: 999px;
}
.price-card-name {
  font-family: var(--font-en);
  font-size: 0.95rem;
  letter-spacing: 0.2em;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
}
.price-card.featured .price-card-name { color: var(--gold); }
.price-card-title {
  font-size: 1.4rem;
  font-weight: 900;
  margin-bottom: 14px;
}
.price-card-price {
  font-size: 2.4rem;
  font-weight: 900;
  font-family: var(--font-en);
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}
.price-card-price small {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--gray-2);
  margin-left: 4px;
}
.price-card.featured .price-card-price small { color: var(--gray-3); }
.price-card-tax {
  font-size: 0.75rem;
  color: var(--gray-2);
  margin-bottom: 24px;
}
.price-card-list {
  flex: 1;
  margin-bottom: 28px;
}
.price-card-list li {
  padding: 12px 0;
  border-bottom: 1px dashed rgba(0,0,0,0.08);
  font-size: 0.92rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.7;
}
.price-card.featured .price-card-list li { border-bottom-color: rgba(255,255,255,0.10); }
.price-card-list li i { color: var(--accent); flex-shrink: 0; margin-top: 5px; }
.price-card.featured .price-card-list li i { color: var(--gold); }

/* === Step / Flow =============================================== */
.flow {
  display: grid;
  gap: 12px;
}
.flow-step {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  border: 1px solid rgba(0,0,0,0.06);
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  align-items: center;
  position: relative;
}
.flow-step + .flow-step::before {
  content: '↓';
  position: absolute;
  top: -22px;
  left: 40px;
  color: var(--accent);
  font-weight: 900;
  font-size: 1.4rem;
}
.flow-step-num {
  font-family: var(--font-en);
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
}
.flow-step-content h4 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.flow-step-content p {
  color: var(--gray-2);
  font-size: 0.94rem;
  line-height: 1.85;
}
@media (max-width: 768px) {
  .flow-step { grid-template-columns: 1fr; gap: 8px; padding: 24px; }
  .flow-step-num { font-size: 2rem; }
  .flow-step + .flow-step::before { left: 50%; transform: translateX(-50%); }
  /* SP：ヒーロー高さをリフォームLPと統一（55vh・コンパクト表示） */
  .hero { min-height: 55vh; padding: 20px 0; }
  /* SP：ヒーロー内側の余白を大幅縮小してリフォームLPと同じ見た目に */
  .hero-inner { padding: 30px 20px 30px !important; }
  /* SP：見出しサイズ・行間を圧縮 */
  .hero-title { font-size: clamp(1.6rem, 6vw, 2.2rem) !important; line-height: 1.35 !important; margin-bottom: 16px !important; }
  .hero-eyebrow { margin-bottom: 12px !important; font-size: 0.7rem !important; }
  .hero-sub { font-size: 0.9rem !important; line-height: 1.85 !important; margin-bottom: 24px !important; }
  .hero-meta { margin-top: 24px !important; padding-top: 20px !important; gap: 20px !important; }
  /* SP：HEROのボタン群を横幅いっぱいに */
  .hero-btns .btn { flex: 1 1 100%; justify-content: center; }

  /* SP：ボタン内テキストの改行を許可＋横幅にフィット（はみ出し防止） */
  .btn {
    white-space: normal !important;
    max-width: 100%;
    box-sizing: border-box;
    text-align: center;
    line-height: 1.4;
  }
  .btn-lg {
    padding: 18px 24px;      /* 左右パディングを縮小 */
    font-size: 1rem;         /* 大きすぎるフォントを標準サイズへ */
  }
}
@media (max-width: 480px) {
  .btn-lg {
    padding: 16px 18px;
    font-size: 0.95rem;
    letter-spacing: 0.03em;  /* 文字間を詰めて幅を稼ぐ */
  }
}

/* === Stats =============================================== */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  margin-top: 40px;
}
.stat {
  text-align: center;
  padding: 28px 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius-lg);
}
.stat-num {
  font-family: var(--font-en);
  font-size: 2.6rem;
  font-weight: 900;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: var(--gray-3);
}

/* === Final CTA =============================================== */
.final-cta {
  background: var(--ink);
  color: #fff;
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.final-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(232,93,26,0.18) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(15,28,63,0.5) 0%, transparent 60%);
  pointer-events: none;
}
.final-cta-inner { position: relative; z-index: 1; }
.final-cta h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  font-weight: 900;
  margin-bottom: 20px;
  line-height: 1.5;
}
.final-cta h2 em {
  font-style: normal;
  color: var(--accent);
}
.final-cta p {
  color: var(--gray-3);
  max-width: 600px;
  margin: 0 auto 36px;
  font-size: 1rem;
  line-height: 2;
}
.final-cta-btns {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

/* === Footer =============================================== */
.site-footer {
  background: #FFFFFF;
  color: #333333;
  padding: 64px 0 32px;
  font-size: 0.88rem;
  border-top: 1px solid #E5E5E5;
}
.site-footer a { color: #333333; }
.site-footer a:hover { color: var(--accent); }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-brand-logo {
  font-family: var(--font-en);
  font-weight: 900;
  font-size: 1.6rem;
  color: #333333;
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}
.footer-brand-desc {
  line-height: 1.95;
  color: #555555;
}
.footer-col-title {
  color: #333333;
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  font-family: var(--font-en);
  margin-bottom: 16px;
}
.footer-list li { padding: 6px 0; }
.footer-bottom {
  border-top: 1px solid #E5E5E5;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: #777777;
}

/* === Notice / 仮文言バッジ ===================================== */
.tentative {
  display: inline-block;
  background: rgba(232,93,26,0.10);
  color: var(--accent);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
  margin-left: 8px;
  vertical-align: middle;
}

/* === Fade-in on scroll ===================================== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .8s ease, transform .8s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}