/* ============================================================
   FUKUOKA SUMO GUIDE — "Sumi & Shu" design system
   Ink black · vermilion · dohyō sand · washi cream
   ============================================================ */
:root{
  --ink:#221d18;
  --ink-soft:#4a4139;
  --washi:#f7f2e6;
  --washi-deep:#efe6d2;
  --sand:#d9c69a;
  --sand-deep:#b89b62;
  --shu:#c2371f;            /* vermilion */
  --shu-dark:#9c2a16;
  --indigo:#28425f;
  --gold:#a8853c;
  --line:rgba(34,29,24,.14);
  --radius:14px;
  --shadow:0 10px 30px rgba(34,29,24,.12);
  --font-display:"Shippori Mincho B1","Noto Serif JP","Noto Serif SC","Noto Serif KR",serif;
  --font-body:"Zen Kaku Gothic New","Noto Sans JP","Noto Sans SC","Noto Sans KR",system-ui,-apple-system,"Segoe UI",sans-serif;
  --maxw:1180px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--washi);
  line-height:1.75;
  font-size:1.0rem;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
:lang(ko){word-break:keep-all}
a{color:var(--shu-dark);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--shu)}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.28;color:var(--ink);font-weight:700}
h1{font-size:clamp(1.9rem,4.6vw,3.1rem);letter-spacing:-.01em}
h2{font-size:clamp(1.45rem,3vw,2.05rem);margin:2.6rem 0 1rem}
h3{font-size:clamp(1.15rem,2.2vw,1.4rem);margin:1.8rem 0 .7rem}
p{margin:0 0 1.05rem}
ul,ol{margin:0 0 1.2rem 1.35rem}
li{margin-bottom:.45rem}
.container{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ---------- texture band (tawara rope motif) ---------- */
.rope-divider{
  height:10px;
  background-image:repeating-linear-gradient(90deg,var(--sand-deep) 0 26px,transparent 26px 38px);
  border-radius:99px;
  opacity:.5;margin:2.4rem 0;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,242,230,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:var(--maxw);margin:0 auto;padding:.55rem 22px;
  display:flex;align-items:center;gap:1rem;
}
.brand{display:flex;align-items:center;gap:.65rem;text-decoration:none;color:var(--ink);flex-shrink:0}
.brand svg{width:44px;height:44px}
.brand-name{font-family:var(--font-display);font-weight:800;font-size:1.06rem;line-height:1.15}
.brand-name small{display:block;font-family:var(--font-body);font-weight:500;font-size:.62rem;letter-spacing:.22em;text-transform:uppercase;color:var(--shu-dark)}
.main-nav{margin-left:auto}
.main-nav ul{display:flex;gap:.15rem;list-style:none;margin:0;align-items:center;flex-wrap:wrap}
.main-nav a{
  display:block;padding:.45rem .62rem;font-size:.88rem;font-weight:600;
  color:var(--ink-soft);text-decoration:none;border-radius:8px;white-space:nowrap;
}
.main-nav a:hover,.main-nav a[aria-current="page"]{color:var(--shu-dark);background:var(--washi-deep)}
.lang-switch{position:relative;flex-shrink:0}
.lang-switch summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:.35rem;
  padding:.42rem .7rem;border:1px solid var(--line);border-radius:99px;
  font-size:.82rem;font-weight:700;background:var(--washi);
}
.lang-switch summary::-webkit-details-marker{display:none}
.lang-switch[open] summary{background:var(--washi-deep)}
.lang-menu{
  position:absolute;right:0;top:calc(100% + 8px);
  background:#fffdf6;border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow);min-width:150px;padding:.4rem;z-index:70;
}
.lang-menu a{display:block;padding:.45rem .7rem;border-radius:8px;text-decoration:none;font-size:.88rem;font-weight:600;color:var(--ink)}
.lang-menu a:hover{background:var(--washi-deep)}
.lang-menu a.active{color:var(--shu-dark)}
.cta-header{
  flex-shrink:0;background:var(--shu);color:#fff!important;text-decoration:none;
  padding:.55rem 1.05rem;border-radius:99px;font-weight:800;font-size:.86rem;
  box-shadow:0 4px 14px rgba(194,55,31,.35);transition:transform .15s ease,background .15s ease;
  white-space:nowrap;
}
.cta-header:hover{background:var(--shu-dark);transform:translateY(-1px)}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:10px;padding:.45rem .6rem;cursor:pointer;font-size:1.05rem;color:var(--ink)}

/* ---------- hero ---------- */
.hero{position:relative;color:#fdf9ee;overflow:hidden;background:var(--ink)}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5}
.hero-inner{
  position:relative;max-width:var(--maxw);margin:0 auto;
  padding:clamp(3rem,7vw,5.5rem) 22px clamp(2.4rem,5vw,4rem);
}
.hero-kicker{
  display:inline-flex;align-items:center;gap:.5rem;
  font-size:.78rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
  color:var(--sand);margin-bottom:1rem;
}
.hero-kicker::before{content:"";width:34px;height:2px;background:var(--shu)}
.hero h1{color:#fdf9ee;max-width:17em;text-wrap:balance}
.hero-sub{max-width:44em;margin:1.1rem 0 1.6rem;font-size:1.06rem;color:#efe6d2}
.hero-ctas{display:flex;gap:.8rem;flex-wrap:wrap;align-items:center;margin-bottom:1.6rem}
.btn-primary,.btn-secondary{
  display:inline-block;text-decoration:none;font-weight:800;border-radius:99px;
  padding:.85rem 1.7rem;font-size:1rem;transition:transform .15s ease;
}
.btn-primary{background:var(--shu);color:#fff;box-shadow:0 6px 20px rgba(194,55,31,.45)}
.btn-primary:hover{background:var(--shu-dark);color:#fff;transform:translateY(-2px)}
.btn-secondary{background:transparent;color:#fdf9ee;border:2px solid rgba(253,249,238,.55)}
.btn-secondary:hover{border-color:#fdf9ee;color:#fff}
.hero-facts{display:flex;gap:1.6rem;flex-wrap:wrap;font-size:.88rem;color:var(--sand)}
.hero-facts b{display:block;font-size:1.05rem;color:#fdf9ee;font-family:var(--font-display)}
.hero-widget{
  position:relative;background:#fffdf6;border-radius:var(--radius);
  box-shadow:var(--shadow);padding:1.1rem;margin-top:1.9rem;color:var(--ink);
}
.hero-widget-title{font-weight:800;font-size:.95rem;margin-bottom:.5rem;display:flex;align-items:center;gap:.5rem}
.hero-widget-title::before{content:"";width:10px;height:10px;border-radius:50%;background:var(--shu)}
/* disclaimer chip in hero */
.hero-disclaimer{
  position:relative;display:inline-block;margin-top:1.2rem;font-size:.68rem;color:rgba(253,249,238,.65);
  border-bottom:1px dotted rgba(253,249,238,.5);cursor:help;
}
.hero-disclaimer .tip{
  visibility:hidden;opacity:0;transition:opacity .2s;position:absolute;bottom:130%;left:0;
  background:#fffdf6;color:var(--ink);padding:.7rem .9rem;border-radius:10px;
  width:min(310px,78vw);font-size:.74rem;line-height:1.5;box-shadow:var(--shadow);z-index:50;
}
.hero-disclaimer:hover .tip,.hero-disclaimer:focus .tip{visibility:visible;opacity:1}

/* ---------- sections ---------- */
.section{padding:clamp(2rem,4.5vw,3.6rem) 0}
.section-alt{background:var(--washi-deep)}
.section-ink{background:var(--ink);color:#efe6d2}
.section-ink h2,.section-ink h3{color:#fdf9ee}
.kicker{
  font-size:.76rem;font-weight:800;letter-spacing:.2em;text-transform:uppercase;
  color:var(--shu-dark);display:flex;align-items:center;gap:.55rem;margin-bottom:.4rem;
}
.kicker::before{content:"";width:26px;height:2px;background:var(--shu)}
.section-ink .kicker{color:var(--sand)}
.lead{font-size:1.1rem;color:var(--ink-soft);max-width:52em}
.section-ink .lead{color:#d9c69a}

/* cards grid */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));gap:1.1rem;margin:1.6rem 0}
.card{
  background:#fffdf6;border:1px solid var(--line);border-radius:var(--radius);
  padding:1.35rem 1.3rem;position:relative;overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card::after{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--shu),var(--sand-deep))}
.card h3{margin:.4rem 0 .5rem;font-size:1.12rem}
.card p{font-size:.92rem;color:var(--ink-soft);margin-bottom:.9rem}
.card .card-link{margin-top:auto;font-weight:800;font-size:.88rem;text-decoration:none}
.card .card-link::after{content:" →"}
.card-num{font-family:var(--font-display);font-size:.8rem;color:var(--sand-deep);letter-spacing:.12em}

/* quick summary table */
.info-table{width:100%;border-collapse:collapse;margin:1.2rem 0 1.6rem;background:#fffdf6;border-radius:var(--radius);overflow:hidden;box-shadow:0 2px 10px rgba(34,29,24,.07);font-size:.95rem}
.info-table th,.info-table td{padding:.8rem 1rem;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.info-table th{background:var(--ink);color:var(--sand);font-family:var(--font-display);font-weight:700;font-size:.86rem;letter-spacing:.05em}
.info-table tr:last-child td{border-bottom:none}
.info-table td:first-child{font-weight:700;white-space:nowrap}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:1.2rem 0 1.6rem}
.table-scroll .info-table{margin:0;min-width:560px}

/* comparison table highlight */
.best-pick{background:rgba(194,55,31,.07)}
.badge{display:inline-block;background:var(--shu);color:#fff;font-size:.66rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;padding:.18rem .55rem;border-radius:99px;margin-left:.4rem;vertical-align:middle}
.badge-gold{background:var(--gold)}

/* figure */
.photo-figure{margin:1.8rem 0;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.photo-figure img{width:100%;height:auto;object-fit:cover}
.photo-figure figcaption{background:var(--ink);color:var(--sand);font-size:.8rem;padding:.6rem 1rem}

/* tip / warning callouts */
.callout{border-radius:var(--radius);padding:1.1rem 1.25rem 1.1rem 1.1rem;margin:1.4rem 0;font-size:.95rem;display:flex;gap:.8rem;background:#fffdf6;border:1px solid var(--line)}
.callout::before{font-size:1.2rem;line-height:1.4}
.callout-tip{border-left:5px solid var(--gold)}
.callout-tip::before{content:"💡"}
.callout-alert{border-left:5px solid var(--shu)}
.callout-alert::before{content:"⚠️"}
.callout p:last-child{margin-bottom:0}

/* inline CTA band */
.cta-band{
  background:linear-gradient(120deg,var(--shu-dark),var(--shu) 55%,#d55a2e);
  color:#fff;border-radius:var(--radius);padding:1.7rem 1.6rem;margin:2.2rem 0;
  display:flex;align-items:center;gap:1.4rem;flex-wrap:wrap;justify-content:space-between;
  box-shadow:0 10px 30px rgba(156,42,22,.35);
}
.cta-band h3{color:#fff;margin:0 0 .3rem;font-size:1.25rem}
.cta-band p{margin:0;font-size:.92rem;opacity:.92;max-width:34em}
.cta-band .btn-light{
  flex-shrink:0;background:#fffdf6;color:var(--shu-dark);text-decoration:none;font-weight:800;
  padding:.8rem 1.6rem;border-radius:99px;font-size:.98rem;transition:transform .15s;
}
.cta-band .btn-light:hover{transform:translateY(-2px)}

/* widget frame */
.widget-block{background:#fffdf6;border:1px solid var(--line);border-radius:var(--radius);padding:1.2rem;margin:1.6rem 0;box-shadow:0 2px 12px rgba(34,29,24,.06)}
/* loading state while the partner iframe boots (or is blocked) */
[data-gyg-widget]{min-height:110px}
[data-gyg-widget]:not(:has(iframe))::before{
  content:"";display:block;width:26px;height:26px;margin:1.6rem auto .7rem;
  border:3px solid var(--sand);border-top-color:var(--shu);border-radius:50%;
  animation:gyg-spin .9s linear infinite;
}
@keyframes gyg-spin{to{transform:rotate(360deg)}}
[data-gyg-widget]:not(:has(iframe)) span{display:block;text-align:center;font-size:.8rem;color:var(--ink-soft)}
.widget-block .widget-label{font-family:var(--font-display);font-weight:700;font-size:1.02rem;margin-bottom:.7rem;display:flex;gap:.5rem;align-items:center}
.widget-block .widget-label::before{content:"";width:10px;height:10px;border-radius:50%;background:var(--shu)}

/* FAQ */
.faq-item{background:#fffdf6;border:1px solid var(--line);border-radius:12px;margin-bottom:.75rem;overflow:hidden}
.faq-item summary{
  cursor:pointer;list-style:none;padding:1rem 3rem 1rem 1.2rem;font-weight:700;font-size:1rem;
  position:relative;font-family:var(--font-display);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:1.1rem;top:50%;transform:translateY(-50%);font-size:1.4rem;color:var(--shu);font-family:var(--font-body)}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-a{padding:0 1.2rem 1.1rem;color:var(--ink-soft);font-size:.94rem}
.faq-item .faq-a p:last-child{margin-bottom:0}

/* breadcrumbs */
.breadcrumbs{font-size:.8rem;margin:1.1rem 0 0;color:var(--ink-soft)}
.breadcrumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:.3rem;margin:0;padding:0}
.breadcrumbs li+li::before{content:"›";margin-right:.3rem;color:var(--sand-deep)}
.breadcrumbs a{color:var(--ink-soft);text-decoration:none}
.breadcrumbs a:hover{color:var(--shu-dark)}

/* article layout */
.article{max-width:820px}
.article-wide{max-width:960px}

/* footer */
.site-footer{background:var(--ink);color:#cfc3ae;margin-top:3.5rem;font-size:.9rem}
.footer-top{max-width:var(--maxw);margin:0 auto;padding:2.8rem 22px 1.8rem;display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2rem}
.site-footer h4{color:#fdf9ee;font-size:.95rem;margin-bottom:.8rem}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:.45rem}
.site-footer a{color:#cfc3ae;text-decoration:none}
.site-footer a:hover{color:var(--sand)}
.footer-brand svg{width:48px;height:48px;margin-bottom:.6rem}
.footer-disclaimer{
  max-width:var(--maxw);margin:0 auto;padding:1.2rem 22px;
  border-top:1px solid rgba(217,198,154,.2);font-size:.76rem;line-height:1.6;color:#a2977f;
}
.footer-legal{max-width:var(--maxw);margin:0 auto;padding:.9rem 22px 1.6rem;font-size:.74rem;color:#847a64;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}

/* ---------- responsive ---------- */
@media (max-width:1020px){
  .main-nav{display:none;position:absolute;top:100%;left:0;right:0;background:#fffdf6;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;align-items:stretch;padding:.8rem 1rem;gap:.1rem}
  .main-nav a{padding:.7rem .8rem;font-size:.98rem}
  .nav-toggle{display:block}
  .cta-header{margin-left:auto}
  .nav-toggle{margin-left:0}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .brand-name small{display:none}
  .brand-name{font-size:.92rem}
}
@media (max-width:640px){
  body{font-size:.97rem}
  .header-inner{padding:.5rem 14px;gap:.5rem}
  .brand-name{display:none}
  .brand svg{width:38px;height:38px}
  .cta-header{padding:.5rem .8rem;font-size:.78rem}
  .nav-toggle{padding:.4rem .5rem;font-size:.95rem}
  .lang-switch summary{padding:.38rem .55rem;font-size:.78rem}
  .container{padding:0 16px}
  .hero-inner{padding:2.4rem 16px 2rem}
  .hero-facts{gap:1rem}
  .cta-band{padding:1.4rem 1.2rem}
  .footer-top{grid-template-columns:1fr;gap:1.4rem}
  .info-table th,.info-table td{padding:.6rem .7rem;font-size:.88rem}
}