/*
Theme Name: Chuo Otono
Description: 中央音野 公式サイト用テーマ(旧BiNDupサイトのデザインを再現)
Author: 尾上
Version: 1.0
Text Domain: chuo-otono
*/

:root{
  --c-primary:#2F4756;
  --c-accent:#7A1F2B;
  --c-accent-dark:#5C1520;
  --c-black:#000000;
  --c-white:#ffffff;
  --c-gray-100:#f9f9f9;
  --c-gray-200:#f5f5f5;
  --c-gray-300:#f1f1f1;
  --c-cream:#F8F4EE;
  --font-serif:'Zen Old Mincho', 'YuMincho', '游明朝', serif;
  --max-width:1100px;
  --radius:6px;
  --shadow-sm:0 4px 16px rgba(20,15,10,.06);
  --shadow:0 16px 40px rgba(20,15,10,.12);
  --ease:.28s cubic-bezier(.4,0,.2,1);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-serif);
  color:var(--c-black);
  background:var(--c-white);
  line-height:1.9;
  letter-spacing:.02em;
  font-size:16px;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:500;margin:0;}

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

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 30px;
  font-size:14px;letter-spacing:.1em;
  border-radius:999px;
  border:1px solid currentColor;
  transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease);
  cursor:pointer;
}
.btn::after{content:"›";font-size:16px;transition:transform var(--ease);}
.btn:hover::after{transform:translateX(3px);}
.btn-primary{background:var(--c-accent);border-color:var(--c-accent);color:var(--c-white);box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--c-accent-dark);border-color:var(--c-accent-dark);transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-outline{background:transparent;border-color:var(--c-white);color:var(--c-white);}
.btn-outline:hover{background:var(--c-white);color:var(--c-accent);transform:translateY(-2px);}
.btn-line{background:transparent;border-color:var(--c-primary);color:var(--c-primary);padding:10px 22px;}
.btn-line:hover{background:var(--c-primary);color:var(--c-white);}

/* ---------- Header ---------- */
.site-header{
  background:var(--c-black);
  color:var(--c-white);
  position:sticky;
  top:0;
  z-index:100;
}
.site-header .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top:14px;
  padding-bottom:14px;
  max-width:1300px;
}
.site-logo img{height:40px;width:auto;}
.site-logo a{display:block;}
.main-nav ul{display:flex;gap:28px;align-items:center;flex-wrap:wrap;}
.main-nav a{font-size:14px;letter-spacing:.05em;position:relative;}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:1px;background:var(--c-accent);transform:scaleX(0);transform-origin:right;transition:transform var(--ease);}
.main-nav a:hover{opacity:1;}
.main-nav a:hover::after{transform:scaleX(1);transform-origin:left;}
.nav-toggle{display:none;background:none;border:0;color:var(--c-white);font-size:26px;cursor:pointer;}

.header-cta{display:flex;align-items:center;gap:18px;}
.header-status{display:flex;align-items:center;gap:6px;font-size:12px;color:#ccc;letter-spacing:.05em;}
.header-status .dot{width:7px;height:7px;border-radius:50%;background:#666;flex:0 0 auto;}
.header-status.is-open .dot{background:#4CAF6D;box-shadow:0 0 0 3px rgba(76,175,109,.25);}
.header-status.is-open{color:#bfe8cd;}
.header-tel{font-size:15px;letter-spacing:.03em;white-space:nowrap;}
.header-tel span{display:block;font-size:10px;color:#999;letter-spacing:.1em;}
@media(max-width:1080px){.header-status{display:none;}}

@media(max-width:820px){
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--c-black);}
  .main-nav.is-open{display:block;}
  .main-nav ul{flex-direction:column;gap:0;padding:10px 24px 20px;}
  .main-nav li{padding:10px 0;border-bottom:1px solid rgba(255,255,255,.1);}
  .nav-toggle{display:block;}
  .header-cta{display:none;}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  min-height:70vh;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  color:var(--c-white);
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(0,0,0,.2) 0%, rgba(0,0,0,.75) 100%);
}
.hero-inner{position:relative;z-index:1;padding:40px 20px;}
.hero-inner p{font-size:clamp(22px,4vw,38px);margin:0 0 8px;text-shadow:0 2px 20px rgba(0,0,0,.35);}
.hero-scroll{position:absolute;left:50%;bottom:28px;transform:translateX(-50%);z-index:1;width:22px;height:36px;border:1px solid rgba(255,255,255,.6);border-radius:999px;}
.hero-scroll::before{content:"";position:absolute;top:6px;left:50%;width:3px;height:8px;background:#fff;border-radius:2px;transform:translateX(-50%);animation:heroScroll 1.8s infinite;}
@keyframes heroScroll{0%{opacity:1;transform:translate(-50%,0);}70%{opacity:0;transform:translate(-50%,10px);}100%{opacity:0;}}

/* ---------- Trust strip ---------- */
.trust-strip{background:var(--c-black);border-top:1px solid rgba(255,255,255,.08);}
.trust-strip ul{display:flex;flex-wrap:wrap;justify-content:center;}
.trust-strip li{
  flex:1 1 220px;
  display:flex;align-items:center;gap:12px;justify-content:center;
  padding:22px 20px;color:#eee;font-size:13px;letter-spacing:.04em;text-align:left;
  border-left:1px solid rgba(255,255,255,.08);
}
.trust-strip li:first-child{border-left:0;}
.trust-strip .num{font-family:var(--font-serif);font-size:22px;color:var(--c-accent);flex:0 0 auto;}
@media(max-width:820px){.trust-strip li{flex:1 1 50%;border-left:0;border-top:1px solid rgba(255,255,255,.08);}}

/* ---------- Section ---------- */
.section{padding:88px 0;}
.section--gray{background:var(--c-cream);}
.section-eyebrow{
  display:block;
  text-align:center;
  font-family:var(--font-serif);
  font-size:13px;
  letter-spacing:.3em;
  color:var(--c-accent);
  margin-bottom:10px;
}
.section-title{
  text-align:center;
  font-size:clamp(24px,3.2vw,34px);
  margin-bottom:28px;
  position:relative;
  padding-bottom:22px;
}
.section-title::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:40px;height:2px;background:var(--c-accent);
}
.section-lead{max-width:760px;margin:0 auto 40px;text-align:center;color:#333;}

/* ---------- Cards / Grid ---------- */
.grid{display:grid;gap:32px;}
.grid--3{grid-template-columns:repeat(3,1fr);}
.grid--2{grid-template-columns:repeat(2,1fr);}
@media(max-width:820px){
  .grid--3,.grid--2{grid-template-columns:1fr;}
}
.card{background:var(--c-white);transition:transform var(--ease),box-shadow var(--ease);}
.card-media{aspect-ratio:4/3;overflow:hidden;margin-bottom:16px;border-radius:var(--radius);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card:has(.card-media){box-shadow:var(--shadow-sm);border-radius:var(--radius);padding:16px 16px 24px;}
.card:has(.card-media):hover{transform:translateY(-6px);box-shadow:var(--shadow);}
.card:has(.card-media):hover .card-media img{transform:scale(1.06);}
.card:has(.card-media) h3,.card:has(.card-media) p{padding:0 4px;}
.card h3{font-size:20px;margin-bottom:10px;}
.card p{color:#333;font-size:15px;}
.card .more{display:inline-flex;align-items:center;gap:4px;margin-top:12px;font-size:13px;letter-spacing:.05em;color:var(--c-accent);}
.card .more::after{content:"›";transition:transform var(--ease);}
.card .more:hover::after{transform:translateX(3px);}

/* number badge for plain text feature cards (no image) */
.grid--2:not(:has(.card-media)) .card,
.grid--3:not(:has(.card-media)) .card{
  counter-increment:cardnum;
  border-top:2px solid var(--c-accent);
  padding-top:20px;
  position:relative;
}
.grid--2:not(:has(.card-media)),
.grid--3:not(:has(.card-media)){counter-reset:cardnum;}
.grid--2:not(:has(.card-media)) .card::before,
.grid--3:not(:has(.card-media)) .card::before{
  content:counter(cardnum,decimal-leading-zero);
  display:block;font-family:var(--font-serif);font-size:26px;color:var(--c-accent);opacity:.55;margin-bottom:8px;
}

.product-item{display:flex;gap:24px;padding:24px;border-bottom:0;align-items:flex-start;background:var(--c-white);border-radius:var(--radius);box-shadow:var(--shadow-sm);margin-bottom:24px;transition:box-shadow var(--ease),transform var(--ease);}
.product-item:hover{box-shadow:var(--shadow);transform:translateY(-3px);}
.product-item .card-media{width:180px;flex:0 0 180px;aspect-ratio:1/1;margin-bottom:0;}
.product-item .card-media img{transition:transform .5s ease;}
.product-item:hover .card-media img{transform:scale(1.06);}
.product-item .product-body{flex:1;}
.product-item h4{font-size:18px;margin-bottom:8px;}
.product-item p{color:#333;font-size:14px;margin:0 0 10px;}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:12px;color:#999;}
.tag{font-size:12px;background:var(--c-cream);color:var(--c-primary);padding:4px 12px;border-radius:999px;}
@media(max-width:600px){
  .product-item{flex-direction:column;}
  .product-item .card-media{width:100%;flex:none;}
}

.category-heading{text-align:center;margin:64px 0 32px;}
.category-heading .en{display:block;font-size:13px;letter-spacing:.25em;color:var(--c-accent);margin-bottom:6px;text-transform:uppercase;}
.category-heading h3{font-size:28px;position:relative;display:inline-block;padding-bottom:16px;}
.category-heading h3::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:36px;height:2px;background:var(--c-primary);}

/* ---------- CTA ---------- */
.cta{
  background:linear-gradient(135deg,var(--c-accent) 0%,var(--c-accent-dark) 100%);
  color:var(--c-white);
  text-align:center;
  padding:64px 24px;
}
.cta h2{font-size:24px;margin-bottom:12px;}
.cta p{opacity:.9;}
.cta .tel{font-size:26px;font-weight:600;letter-spacing:.05em;margin:14px 0 2px;}
.cta a.store-link{display:inline-flex;align-items:center;gap:8px;margin-top:22px;padding:14px 32px;border:1px solid var(--c-white);border-radius:999px;transition:background var(--ease),color var(--ease),transform var(--ease);}
.cta a.store-link::after{content:"›";}
.cta a.store-link:hover{background:var(--c-white);color:var(--c-accent);transform:translateY(-2px);}

/* ---------- Table ---------- */
table.info-table{width:100%;border-collapse:collapse;margin:0 auto;max-width:760px;background:var(--c-white);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);}
table.info-table th,table.info-table td{
  text-align:left;
  padding:18px 24px;
  border-bottom:1px solid var(--c-gray-300);
  vertical-align:top;
}
table.info-table tr:last-child th,table.info-table tr:last-child td{border-bottom:0;}
table.info-table tr:nth-child(even){background:var(--c-cream);}
table.info-table th{width:180px;color:var(--c-accent);font-weight:500;}

/* map framing */
.section iframe{border-radius:var(--radius);box-shadow:var(--shadow-sm);}

/* ---------- FAQ ---------- */
.faq-group-title{font-size:20px;color:var(--c-primary);margin:48px 0 18px;padding-bottom:8px;border-bottom:2px solid var(--c-accent);}
.faq-item{border-bottom:1px solid var(--c-gray-300);background:var(--c-white);}
.faq-q{
  display:flex;gap:14px;align-items:baseline;justify-content:space-between;
  padding:20px 4px;cursor:pointer;font-size:16px;transition:color var(--ease);
}
.faq-q::before{content:"Q";color:var(--c-accent);font-family:var(--font-serif);flex:0 0 auto;margin-right:2px;}
.faq-q .faq-icon{margin-left:auto;flex:0 0 auto;width:16px;height:16px;position:relative;}
.faq-q .faq-icon::before,.faq-q .faq-icon::after{content:"";position:absolute;background:var(--c-primary);transition:transform var(--ease);}
.faq-q .faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-q .faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.is-open .faq-q{color:var(--c-accent);}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-q:hover{color:var(--c-accent);}
.faq-a{display:flex;gap:14px;align-items:baseline;padding:0 4px 20px;color:#333;font-size:14px;}
.faq-a::before{content:"A";color:#999;flex:0 0 auto;}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-black);color:var(--c-white);padding:56px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:40px;}
@media(max-width:820px){.footer-grid{grid-template-columns:1fr;gap:28px;}}
.footer-grid h4{font-size:13px;letter-spacing:.15em;color:#aaa;margin-bottom:14px;}
.footer-grid li{margin-bottom:10px;font-size:14px;}
.footer-grid a:hover{color:var(--c-accent);}
.footer-logo img{height:32px;filter:brightness(0) invert(1);margin-bottom:14px;}
.site-footer .copyright{text-align:center;font-size:12px;color:#777;border-top:1px solid #222;padding-top:20px;}

/* ---------- Mobile sticky CTA bar ---------- */
.mobile-cta-bar{display:none;}
@media(max-width:820px){
  .mobile-cta-bar{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:200;
    box-shadow:0 -6px 20px rgba(0,0,0,.15);
    padding-bottom:env(safe-area-inset-bottom,0);
  }
  .mobile-cta-bar a{flex:1;text-align:center;padding:15px 10px;font-size:13px;letter-spacing:.05em;}
  .mobile-cta-bar a:first-child{background:var(--c-black);color:var(--c-white);}
  .mobile-cta-bar a:last-child{background:var(--c-accent);color:var(--c-white);}
  body{padding-bottom:54px;}
}

/* ---------- Misc ---------- */
.page-title-band{background:var(--c-cream);text-align:center;padding:64px 24px;}
.page-title-band .breadcrumb{font-size:12px;color:#888;margin-bottom:10px;}
.page-title-band h1{font-size:clamp(24px,3vw,32px);position:relative;display:inline-block;padding-bottom:20px;}
.page-title-band h1::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:40px;height:2px;background:var(--c-accent);}