/*
Theme Name: Renchin Base
Description: レンチンシリーズ共通のシンプルなベーステーマ。ロゴ（外観 > カスタマイズ）を差し替えるだけで、他のサービスサイトにも使い回せます。
Author: renchin
Version: 1.4.0
Text Domain: renchin-base
*/

:root{
  --green:#3aae36;
  --green-dark:#2c8a29;
  --green-light:#eaf6e9;
  --green-line:#cdead0;
  --ink:#1b201d;
  --ink-secondary:#5c665f;
  --border:#e2e7e3;
  --surface:#ffffff;
  --surface-alt:#f6f8f6;
  --header-h:64px;
}

*{box-sizing:border-box;}
html{background:var(--surface);}
body{
  margin:0;
  background:var(--surface);
  color:var(--ink);
  font-family:"Noto Sans JP","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  -webkit-font-smoothing:antialiased;
  line-height:1.7;
}
a{color:inherit;}
img,video{max-width:100%;height:auto;display:block;}
h1,h2,h3{text-wrap:balance;margin:0;}
.wrap{max-width:1040px;margin-inline:auto;padding-inline:20px;}
.screen-reader-text{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;}

/* ---- ヘッダー（他サイトへそのまま流用可。ロゴだけカスタマイザーで差し替え） ---- */
.site-header{
  position:sticky;
  top:env(safe-area-inset-top,0px);
  z-index:20;
  background:var(--surface);
  border-bottom:1px solid var(--border);
}
.header-inner{
  position:relative;
  max-width:1040px;
  margin-inline:auto;
  min-height:var(--header-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-inline:20px;
  gap:16px;
}
.site-logo{display:flex;align-items:center;}
.site-logo a{display:flex;align-items:center;text-decoration:none;}
.site-logo img{height:22px;width:auto;max-height:22px;}
.site-nav{display:flex;align-items:center;gap:28px;}
.site-nav .links{display:flex;gap:24px;font-size:14px;font-weight:500;list-style:none;margin:0;padding:0;}
.site-nav .links a{text-decoration:none;color:var(--ink-secondary);}
.site-nav .links a:hover{color:var(--ink);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;font-size:14px;
  border-radius:8px;
  padding:10px 18px;
  text-decoration:none;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
}
.btn-primary{background:var(--green);color:#fff;}
.btn-primary:hover{background:var(--green-dark);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--border);}
.btn-ghost:hover{border-color:var(--ink-secondary);}

/* ---- ハンバーガーメニュー（スマホ幅） ---- */
.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:4px;
  width:36px;height:36px;
  border:none;background:transparent;
  cursor:pointer;padding:0;flex-shrink:0;
}
.nav-toggle-bar{width:20px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease, opacity .2s ease;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

@media (max-width:640px){
  .nav-toggle{display:flex;}
  .site-nav{
    position:absolute;
    top:100%;left:0;right:0;
    background:var(--surface);
    border-bottom:1px solid var(--border);
    box-shadow:0 12px 24px -12px rgba(0,0,0,.15);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:4px 20px 20px;
    display:none;
  }
  .site-nav.is-open{display:flex;}
  .site-nav .links{flex-direction:column;gap:0;}
  .site-nav .links a{padding:14px 0;border-bottom:1px solid var(--border);}
  .site-nav .btn-primary{margin-top:14px;width:100%;}
}

/* ---- Hero ---- */
.hero{padding-block:64px 56px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--green-dark);
  background:var(--green-light);
  border:1px solid var(--green-line);
  padding:5px 12px;border-radius:999px;
  margin-bottom:20px;
}
h1.headline{
  font-size:clamp(24px,6.2vw,48px);
  font-weight:900;
  letter-spacing:-0.01em;
  white-space:nowrap;
}
.sub{
  margin-top:18px;
  font-size:17px;
  color:var(--ink-secondary);
  max-width:44ch;
}
.hero-actions{display:flex;gap:12px;margin-top:32px;flex-wrap:wrap;}
.hero-actions .btn{padding:13px 24px;font-size:15px;}
.hero-note{margin-top:14px;font-size:13px;color:var(--ink-secondary);}

/* ---- 帯セクション共通 ---- */
.band{padding-block:64px;border-top:1px solid var(--border);}
.band-alt{background:var(--surface-alt);}
.section-head{max-width:52ch;margin-bottom:40px;}
.section-label{
  font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--green-dark);text-transform:uppercase;
}
.section-title{font-size:clamp(22px,3vw,30px);font-weight:800;margin-top:8px;}
#how .section-title{white-space:nowrap;font-size:clamp(19px,5vw,30px);}
.section-desc{margin-top:10px;color:var(--ink-secondary);font-size:15px;}

/* ---- カード群 ---- */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
@media (max-width:760px){.grid3{grid-template-columns:1fr;}}
.feature{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:14px;
  padding:24px;
}
.feature-icon{
  width:40px;height:40px;border-radius:10px;
  background:var(--green-light);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}
.feature-icon svg{width:20px;height:20px;stroke:var(--green-dark);}
.feature h3{font-size:16px;font-weight:700;}
.feature p{margin:8px 0 0;font-size:14px;color:var(--ink-secondary);}

/* ---- つかいかた：番号つきの実際の手順 ---- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  border:1px solid var(--border);
  border-radius:16px;
  overflow:hidden;
}
@media (max-width:760px){.steps{grid-template-columns:1fr;}}
.step{padding:26px 22px;background:var(--surface);}
.steps .step + .step{border-top:1px solid var(--border);}
@media (min-width:761px){
  .steps .step + .step{border-top:none;border-left:1px solid var(--border);}
}
.step-num{font-size:13px;font-weight:800;color:var(--green-dark);font-variant-numeric:tabular-nums;}
.step h4{font-size:15px;font-weight:700;margin-top:8px;}
.step p{font-size:13.5px;color:var(--ink-secondary);margin:6px 0 0;}

/* ---- 2カード比較（お試し・料金で共用） ---- */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
@media (max-width:760px){.grid2{grid-template-columns:1fr;}}
.trial-card,.price-card{
  border:1px solid var(--border);
  border-radius:16px;
  padding:28px;
  background:var(--surface);
  display:flex;flex-direction:column;
  gap:14px;
}
.trial-card.is-primary,.price-card.is-best{border-color:var(--green);box-shadow:0 0 0 1px var(--green) inset;}
.trial-badge,.price-badge{
  align-self:flex-start;
  font-size:12px;font-weight:700;
  padding:4px 10px;border-radius:999px;
  background:var(--surface-alt);color:var(--ink-secondary);
}
.trial-card.is-primary .trial-badge,.price-card.is-best .price-badge{background:var(--green-light);color:var(--green-dark);}
.trial-card h3{font-size:18px;font-weight:800;}
.trial-card .desc{font-size:14px;color:var(--ink-secondary);}
.trial-card ul{margin:0;padding-left:18px;font-size:13.5px;color:var(--ink-secondary);display:flex;flex-direction:column;gap:6px;}
.trial-card .btn{margin-top:auto;align-self:flex-start;}

/* ---- 料金カード ---- */
.price-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
@media (max-width:640px){.price-grid{grid-template-columns:1fr;}}
.price-name{font-size:15px;font-weight:700;color:var(--ink-secondary);}
.price-main{display:flex;align-items:baseline;gap:8px;}
.price-num{font-size:34px;font-weight:900;font-variant-numeric:tabular-nums;}
.price-unit{font-size:13.5px;color:var(--ink-secondary);}
.price-total{font-size:13px;color:var(--ink-secondary);}
.price-save{font-size:13px;font-weight:700;color:var(--green-dark);}
.pricing-notes{display:flex;gap:24px;flex-wrap:wrap;font-size:13.5px;color:var(--ink-secondary);margin-top:20px;}
.pricing-notes b{color:var(--ink);}

/* ---- ブランドタグライン ---- */
.story{text-align:center;max-width:34ch;margin-inline:auto;}
.story .tagline{
  margin:0;font-size:clamp(24px,4vw,32px);font-weight:900;letter-spacing:-0.01em;
  color:var(--green-dark);
}
.story .tagline-sub{margin:6px 0 0;font-size:14px;font-weight:700;color:var(--ink-secondary);letter-spacing:.02em;}

/* ---- ブログ一覧・記事ページ（リリース情報／障害報告など） ---- */
.blog-list{display:flex;flex-direction:column;gap:0;border:1px solid var(--border);border-radius:16px;overflow:hidden;background:var(--surface);}
.blog-list article{padding:24px;border-top:1px solid var(--border);}
.blog-list article:first-child{border-top:none;border-top-left-radius:16px;border-top-right-radius:16px;}
.blog-list article:last-child{border-bottom-left-radius:16px;border-bottom-right-radius:16px;}
.blog-date{font-size:13px;color:var(--ink-secondary);font-variant-numeric:tabular-nums;}
.blog-list h2{font-size:17px;font-weight:700;margin-top:6px;}
.blog-list h2 a{text-decoration:none;}
.blog-list h2 a:hover{color:var(--green-dark);}
.blog-excerpt{margin-top:8px;font-size:14px;color:var(--ink-secondary);}
.single-article h1{font-size:clamp(24px,3.4vw,32px);font-weight:800;}
.single-meta{margin-top:10px;font-size:13px;color:var(--ink-secondary);}
.single-content{margin-top:28px;font-size:15.5px;}
.single-content p{margin:0 0 1.4em;}
.single-content img{border-radius:12px;}

/* ---- 写真・動画カルーセル（インスタ風。決まった大きさの枠に収め、複数あれば横スワイプ） ---- */
.renchin-carousel{
  display:flex;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
  border-radius:12px;
  background:var(--surface-alt);
  margin:0 0 1.4em;
}
.renchin-carousel::-webkit-scrollbar{display:none;}
.renchin-carousel-slide{
  flex:0 0 100%;
  scroll-snap-align:start;
  aspect-ratio:4/5;
  overflow:hidden;
}
.renchin-carousel-slide img,
.renchin-carousel-slide video{
  width:100%;
  height:100%;
  max-width:100%;
  object-fit:cover;
  display:block;
  border-radius:0;
}

/* ---- フッター（ヘッダー同様、他サイトへそのまま流用可） ---- */
.site-footer{border-top:1px solid var(--border);padding-block:36px 48px;}
.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;}
.footer-logo{opacity:.85;}
.footer-logo img{height:16px;width:auto;max-height:16px;}
.footer-links{display:flex;gap:20px;font-size:13px;color:var(--ink-secondary);list-style:none;margin:0;padding:0;}
.footer-links a{text-decoration:none;}
.footer-links a:hover{color:var(--ink);}
.copyright{font-size:12px;color:var(--ink-secondary);margin-top:20px;}