/* ==========================================================================
   安心脳LAB ランディングページ
   ========================================================================== */

:root{
  --bg-base:      #FAF6EE;
  --bg-alt:       #F1E7D4;
  --bg-white:     #FFFFFF;

  --text-main:    #372F26;
  --text-sub:     #766B5C;
  --text-faint:   #9C9080;

  --green-deep:   #2E4438;
  --green-deep-2: #24352B;
  --matcha:       #7C8B5C;
  --matcha-light: #A9B98A;
  --earth:        #A9825B;
  --earth-light:  #D9C7AE;

  --line:         #E3D6BE;
  --line-soft:    rgba(55,47,38,0.1);

  --shadow-soft:  0 20px 45px rgba(55,47,38,0.08);
  --shadow-card:  0 12px 30px rgba(55,47,38,0.07);

  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;

  --font-serif: 'Shippori Mincho', 'Noto Serif JP', serif;
  --font-sans: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;

  --container-w: 1080px;
  --container-narrow-w: 760px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  background: var(--bg-base);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img{ display:block; max-width:100%; }
a{ color: inherit; text-decoration: none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3,h4{ margin:0; font-family: var(--font-serif); font-weight: 600; }
p{ margin:0; }
button{ font-family: inherit; }

.container{
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow{ max-width: var(--container-narrow-w); }

.sp-only{ display:inline; }
@media (min-width:768px){ .sp-only{ display:none; } }

/* ---------- 汎用 ---------- */
.eyebrow{
  font-family: var(--font-serif);
  letter-spacing: 0.22em;
  font-size: 12.5px;
  color: var(--matcha);
  margin-bottom: 14px;
  text-transform: uppercase;
}
.eyebrow-light{ color: var(--earth-light); }

.section{ padding: 88px 0; position: relative; }
.section-beige{ background: var(--bg-alt); }
.section-green{
  background: linear-gradient(160deg, var(--green-deep) 0%, var(--green-deep-2) 100%);
  color: #F3ECDF;
}
.section-title{
  font-size: 26px;
  line-height: 1.6;
  margin-bottom: 34px;
  color: var(--text-main);
}
.section-title-light{ color: #FBF6EA; }
.section-note{
  color: var(--text-sub);
  font-size: 14.5px;
  margin-top: -18px;
  margin-bottom: 34px;
}

.badge{
  display:inline-block;
  padding: 7px 18px;
  border-radius: 999px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  font-weight: 500;
}
.badge-accent{
  background: rgba(169,130,91,0.16);
  color: var(--earth);
  border: 1px solid rgba(169,130,91,0.35);
}

.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  font-weight: 600;
  text-align: center;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
  white-space: nowrap;
}
.btn-primary{
  background: var(--green-deep);
  color: #FBF6EA;
  box-shadow: var(--shadow-soft);
}
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 24px 40px rgba(46,68,56,0.28); }
.btn-large{ padding: 17px 40px; font-size: 15.5px; width: 100%; max-width: 360px; }
.btn-small{ padding: 10px 22px; font-size: 13px; }

.prose p{ margin-bottom: 26px; color: var(--text-main); }
.prose p:last-child{ margin-bottom: 0; }
.prose-light p{ color: #EFE7D7; }

.pull-quote{
  font-family: var(--font-serif);
  font-size: 19px;
  line-height: 2.05;
  text-align: center;
  color: var(--green-deep);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 36px 8px;
  margin: 40px 0;
}
.pull-quote-single{
  font-family: var(--font-serif);
  font-size: 19px;
  line-height: 1.9;
  text-align: center;
  color: var(--green-deep);
  margin-top: 40px;
}

/* ---------- ヘッダー ---------- */
.site-header{
  position: fixed;
  top:0; left:0; right:0;
  z-index: 100;
  background: rgba(250,246,238,0.88);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line-soft);
  transition: background .3s ease;
}
.header-inner{
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 14px 20px;
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 16px;
}
.brand{
  display:flex; align-items:center; gap:8px;
  color: var(--green-deep);
}
.brand-mark{ display:flex; color: var(--matcha); }
.brand-text{
  font-family: var(--font-serif);
  font-size: 18px;
  letter-spacing: 0.03em;
  font-weight: 600;
}
.brand-text-sub{ font-size: 13px; color: var(--matcha); margin-left: 2px; }
.header-cta{ flex-shrink: 0; }

/* ---------- ヒーロー ---------- */
.hero{
  position: relative;
  min-height: 100svh;
  display:flex;
  align-items:flex-end;
  padding-top: 100px;
  color: #FBF6EA;
  overflow: hidden;
}
.hero-bg{ position:absolute; inset:0; z-index:0; }
.hero-bg img{ width:100%; height:100%; object-fit: cover; object-position: 78% 45%; }
.hero-overlay{
  position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(30,26,20,0.35) 0%, rgba(28,24,18,0.55) 55%, rgba(24,20,15,0.82) 100%);
}
.hero-content{
  position: relative;
  z-index: 1;
  padding-bottom: 64px;
  padding-top: 40px;
}
.hero-title{
  font-size: 44px;
  letter-spacing: 0.04em;
  line-height:1.2;
}
.hero-title-lab{ font-size: 24px; margin-left: 4px; color: var(--earth-light); }
.hero-subtitle{
  font-family: var(--font-serif);
  font-size: 14px;
  color: var(--earth-light);
  margin-top: 10px;
  letter-spacing: 0.05em;
}
.hero-catch{
  font-family: var(--font-serif);
  font-size: 21px;
  line-height: 1.7;
  margin-top: 26px;
}
.hero-lead{
  font-size: 14.5px;
  line-height: 1.9;
  color: #E7DFCF;
  margin-top: 18px;
}
.hero-offer{
  margin-top: 32px;
  padding-top: 26px;
  border-top: 1px solid rgba(251,246,234,0.28);
}
.hero-price{ margin-top: 14px; display:flex; align-items:baseline; gap:10px; flex-wrap:wrap; }
.price-before{ font-size: 15px; color: #C9BFAC; text-decoration: line-through; }
.price-arrow{ color: var(--earth-light); }
.price-after{ font-family: var(--font-serif); font-size: 28px; color: #FBF6EA; font-weight:600; }
.price-yen{ font-size: 14px; margin-left: 3px; font-family: var(--font-sans); font-weight:400; }
.hero-features{ margin-top: 16px; display:flex; flex-wrap:wrap; gap: 10px 18px; }
.hero-features li{
  font-size: 12.5px;
  color: #F3ECDF;
  padding-left: 16px;
  position:relative;
}
.hero-features li::before{
  content:"";
  position:absolute; left:0; top:8px;
  width:6px; height:6px; border-radius:50%;
  background: var(--matcha-light);
}
.hero-content .btn{ margin-top: 32px; }
.hero-scroll{
  position:absolute; bottom: 22px; left:50%; transform: translateX(-50%);
  z-index:1;
}
.hero-scroll span{
  display:block; width:1px; height: 40px;
  background: linear-gradient(180deg, rgba(251,246,234,0.9), rgba(251,246,234,0));
  animation: scrollLine 1.8s ease-in-out infinite;
}
@keyframes scrollLine{
  0%{ transform: scaleY(0.4); transform-origin: top; opacity: .4;}
  50%{ transform: scaleY(1); transform-origin: top; opacity: 1;}
  100%{ transform: scaleY(0.4); transform-origin: bottom; opacity: .4;}
}

/* ---------- こんな方へ：チェックリスト ---------- */
.check-grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.check-item{
  background: var(--bg-white);
  border-radius: var(--radius-md);
  padding: 18px 20px 18px 46px;
  font-size: 14.5px;
  position: relative;
  box-shadow: var(--shadow-card);
}
.check-item::before{
  content:"";
  position:absolute; left:18px; top:50%; transform: translateY(-50%);
  width: 18px; height:18px;
  border-radius:50%;
  background: var(--matcha);
  opacity: .18;
}
.check-item::after{
  content:"";
  position:absolute; left:22.5px; top:calc(50% - 3px); transform: translateY(-50%) rotate(-45deg);
  width: 9px; height: 5px;
  border-left: 2px solid var(--matcha);
  border-bottom: 2px solid var(--matcha);
}

/* ---------- 差し込み写真 ---------- */
.breather-image{
  margin: 64px 0;
  width: 100%;
  height: 320px;
  overflow: hidden;
}
.breather-image img{ width:100%; height:100%; object-fit: cover; }

/* ---------- 要素図 ---------- */
.element-diagram{
  display:flex;
  flex-wrap: wrap;
  align-items:center;
  justify-content:center;
  gap: 10px 8px;
  margin: 34px 0;
  padding: 30px 18px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
}
.element-chip{
  font-family: var(--font-serif);
  font-size: 14px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--green-deep);
  background: var(--bg-base);
}
.element-x{ color: var(--earth); font-size: 13px; }

/* ---------- 定期ケアの例え ---------- */
.analogy-row{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 36px;
}
.analogy-item{
  background: var(--bg-alt);
  border-radius: var(--radius-md);
  padding: 22px 10px;
  text-align:center;
}
.analogy-icon{ display:inline-flex; color: var(--matcha); margin-bottom: 10px; }
.analogy-item p{ font-size: 12.5px; color: var(--text-sub); line-height: 1.6; }

.contrast-box{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 34px 0;
}
.contrast-no, .contrast-yes{
  border-radius: var(--radius-md);
  padding: 24px 12px;
  text-align:center;
}
.contrast-no{ background: var(--bg-alt); color: var(--text-faint); }
.contrast-yes{ background: var(--green-deep); color: #FBF6EA; }
.contrast-mark{ display:block; font-size: 22px; margin-bottom: 10px; font-family: var(--font-serif); }
.contrast-no .contrast-mark{ color: var(--text-faint); }
.contrast-yes .contrast-mark{ color: var(--matcha-light); }
.contrast-no p, .contrast-yes p{ font-size: 13px; line-height: 1.7; }

/* ---------- できることカード ---------- */
.content-grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.content-card{
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 30px 26px;
  box-shadow: var(--shadow-card);
}
.content-card-head{
  display:flex; align-items:center; gap: 14px;
  margin-bottom: 14px;
}
.content-num{
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--earth-light);
}
.tag{
  font-size: 11px;
  padding: 5px 12px;
  border-radius: 999px;
  letter-spacing: 0.03em;
}
.tag-monthly{ background: rgba(124,139,92,0.15); color: var(--matcha); }
.tag-plus{ background: rgba(169,130,91,0.15); color: var(--earth); }
.content-card h3{ font-size: 18px; margin-bottom: 12px; color: var(--text-main); }
.content-card p{ font-size: 14px; color: var(--text-sub); margin-bottom: 10px; }
.content-note{ font-size: 12.5px !important; color: var(--text-faint) !important; border-top: 1px dashed var(--line); padding-top: 12px; margin-top: 4px; }

/* ---------- バリュー / コールアウト ---------- */
.value-list{ display:grid; gap: 14px; margin-bottom: 40px; }
.value-list li{
  font-size: 15px;
  padding-left: 28px;
  position: relative;
  color: #F3ECDF;
}
.value-list li::before{
  content:"";
  position:absolute; left:0; top: 10px;
  width: 14px; height: 1px;
  background: var(--matcha-light);
}
.callout{
  background: rgba(251,246,234,0.06);
  border: 1px solid rgba(251,246,234,0.18);
  border-radius: var(--radius-lg);
  padding: 34px 26px;
}
.callout-title{
  font-family: var(--font-serif);
  font-size: 19px;
  text-align:center;
  color: #FBF6EA;
  margin-bottom: 22px;
}
.callout-list{ display:grid; gap: 10px; margin-bottom: 24px; }
.callout-list li{
  font-size: 13.5px;
  color: #D9CFBB;
  padding-left: 20px;
  position:relative;
}
.callout-list li::before{
  content:"—"; position:absolute; left:0; color: var(--matcha-light);
}
.callout-text{ font-size: 14px; color: #EFE7D7; text-align:center; line-height:1.95; }

/* ---------- 続けることで得られること ---------- */
.benefit-list{ display:grid; gap: 12px; margin-bottom: 8px; }
.benefit-list li{
  background: var(--bg-white);
  border-radius: var(--radius-sm);
  padding: 15px 18px 15px 42px;
  font-size: 14px;
  position: relative;
  box-shadow: var(--shadow-card);
}
.benefit-list li::before{
  content:"";
  position:absolute; left:16px; top:50%; transform: translateY(-50%) rotate(-45deg);
  width: 8px; height: 4px;
  border-left: 2px solid var(--matcha);
  border-bottom: 2px solid var(--matcha);
}

/* ---------- 料金カード ---------- */
.price-card{
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 40px 26px;
  text-align:center;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--line);
}
.price-card-price{ margin-top: 22px; }
.price-card-main{ margin: 6px 0 30px; }
.price-num{ font-family: var(--font-serif); font-size: 42px; color: var(--green-deep); }
.price-unit{ font-size: 14px; color: var(--text-sub); margin-left: 4px; }
.price-card-block{ text-align:left; margin-bottom: 26px; padding-top: 22px; border-top: 1px solid var(--line); }
.price-card-heading{
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--earth);
  margin-bottom: 14px;
}
.price-included li, .price-others li{
  font-size: 13.5px;
  color: var(--text-main);
  padding-left: 20px;
  position: relative;
  margin-bottom: 10px;
  line-height: 1.6;
}
.price-included li:last-child, .price-others li:last-child{ margin-bottom:0; }
.price-included li::before, .price-others li::before{
  content:"";
  position:absolute; left:0; top: 8px;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--matcha);
}
.price-cta{ margin: 6px auto 0; }
.price-legal-link{ font-size: 12px; color: var(--text-faint); margin-top: 18px; }
.price-legal-link a{ color: var(--earth); text-decoration: underline; text-underline-offset: 2px; }

/* ---------- 主宰者紹介 ---------- */
.instructor-grid{ display:grid; grid-template-columns: 1fr; gap: 26px; }
.instructor-card{
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 34px 26px;
  text-align:center;
  box-shadow: var(--shadow-card);
}
.instructor-avatar{
  width: 76px; height:76px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: linear-gradient(160deg, var(--matcha-light), var(--matcha));
  color: #FBF6EA;
  display:flex; align-items:center; justify-content:center;
  font-family: var(--font-serif);
  font-size: 15px;
  letter-spacing: 0.05em;
}
.instructor-lens{ font-size: 12px; color: var(--earth); margin-bottom: 8px; }
.instructor-card h3{ font-size: 19px; margin-bottom: 8px; }
.instructor-nickname{ font-size: 13px; color: var(--text-sub); font-family: var(--font-sans); margin-left: 4px; }
.instructor-role{ font-size: 12.5px; color: var(--text-sub); margin-bottom: 16px; }
.instructor-bio{ font-size: 13.5px; color: var(--text-main); text-align:left; line-height: 1.85; }
.edit-note{ display:block; margin-top: 10px; font-size: 11.5px; color: var(--text-faint); }

/* ---------- FAQ ---------- */
.faq-list{ display:grid; gap: 12px; }
.faq-item{
  background: var(--bg-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.faq-question{
  width:100%;
  text-align:left;
  background:none;
  border:none;
  padding: 20px 46px 20px 22px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-main);
  position:relative;
  cursor:pointer;
  line-height:1.6;
}
.faq-question::before, .faq-question::after{
  content:"";
  position:absolute; right: 22px; top:50%;
  background: var(--matcha);
  transition: transform .3s ease;
}
.faq-question::before{ width:12px; height:2px; transform: translateY(-50%); }
.faq-question::after{ width:2px; height:12px; transform: translateY(-50%); }
.faq-question[aria-expanded="true"]::after{ transform: translateY(-50%) rotate(90deg); opacity:0; }
.faq-answer{
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
  padding: 0 22px;
}
.faq-answer p{ font-size: 13.5px; color: var(--text-sub); padding-bottom: 20px; line-height:1.85; }
.faq-item.open .faq-answer{ max-height: 300px; }

/* ---------- 最後のメッセージ ---------- */
.closing{ position:relative; padding: 100px 0; color: #FBF6EA; overflow:hidden; }
.closing-bg{ position:absolute; inset:0; z-index:0; }
.closing-bg img{ width:100%; height:100%; object-fit:cover; }
.closing-overlay{ position:absolute; inset:0; background: linear-gradient(175deg, rgba(35,30,22,0.42) 0%, rgba(30,26,19,0.6) 55%, rgba(26,22,16,0.78) 100%); }
.closing-content{ position:relative; z-index:1; text-align:center; }
.closing-message{
  font-family: var(--font-serif);
  font-size: 21px;
  line-height: 1.85;
  margin-bottom: 38px;
}
.closing-content .prose{ margin-bottom: 30px; }
.closing-invite{
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.9;
  color: var(--earth-light);
  margin-bottom: 34px;
}
.closing-content .btn{ margin: 0 auto; }

/* ---------- フッター ---------- */
.site-footer{ background: var(--green-deep-2); color: #C9BFAC; padding: 48px 0 100px; text-align:center; }
.footer-brand{ font-family: var(--font-serif); font-size: 14px; color: #EFE7D7; margin-bottom: 18px; }
.footer-links{ display:flex; flex-wrap:wrap; justify-content:center; gap: 10px 22px; margin-bottom: 22px; }
.footer-links a{ font-size: 12.5px; color: #C9BFAC; border-bottom: 1px solid transparent; }
.footer-links a:hover{ border-color: #C9BFAC; }
.footer-copyright{ font-size: 11.5px; color: #8C8272; }

/* ---------- モバイル固定CTA ---------- */
.sticky-cta{
  position: fixed;
  left:0; right:0; bottom:0;
  z-index: 90;
  background: rgba(250,246,238,0.96);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--line);
  padding: 12px 18px;
  transform: translateY(100%);
  transition: transform .35s ease;
  box-shadow: 0 -8px 24px rgba(55,47,38,0.08);
}
.sticky-cta.visible{ transform: translateY(0); }
.sticky-cta-inner{ display:flex; align-items:center; justify-content:space-between; gap: 14px; max-width: var(--container-w); margin:0 auto; }
.sticky-cta-price{ font-size: 12.5px; color: var(--text-sub); }
.sticky-cta-strike{ text-decoration: line-through; color: var(--text-faint); }
.sticky-cta .btn-small{ flex-shrink:0; }

/* ---------- スクロールリビール ---------- */
.reveal{ opacity:0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in-view{ opacity:1; transform: translateY(0); }

/* ==========================================================================
   タブレット以上
   ========================================================================== */
@media (min-width: 768px){
  .section{ padding: 128px 0; }
  .section-title{ font-size: 32px; }
  .header-inner{ padding: 18px 32px; }

  .hero{ align-items:center; padding-top: 80px; }
  .hero-content{ max-width: 640px; padding-bottom: 0; }
  .hero-title{ font-size: 60px; }
  .hero-title-lab{ font-size: 30px; }
  .hero-catch{ font-size: 27px; }
  .hero-lead{ font-size: 15.5px; }

  .check-grid{ grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .content-grid{ grid-template-columns: repeat(2, 1fr); }
  .instructor-grid{ grid-template-columns: repeat(2, 1fr); }
  .breather-image{ height: 440px; }

  .price-card{ padding: 56px 64px; }
  .price-card-block{ display:grid; grid-template-columns: 1fr 1fr; gap: 30px; }

  .btn-large{ width:auto; }
  .sticky-cta{ display:none; }
}

@media (min-width: 1024px){
  .container{ padding: 0 40px; }
  .hero-title{ font-size: 68px; }
  .element-diagram{ gap: 16px 14px; padding: 40px 30px; }
  .element-chip{ font-size: 15px; padding: 12px 22px; }
}