/* ===== otokuchan shared styles ===== */
:root{
  --bg:        oklch(98.6% 0.012 60);
  --surface:   #ffffff;
  --ink:       oklch(24% 0.02 40);
  --ink-soft:  oklch(48% 0.02 45);
  --ink-faint: oklch(66% 0.015 50);
  --line:      oklch(91% 0.012 55);
  --primary:   oklch(63% 0.205 28);
  --primary-d: oklch(55% 0.2 28);
  --accent:    oklch(83% 0.16 88);
  --accent-ink:oklch(40% 0.09 70);
  --insta-a:   #f58529;
  --insta-b:   #dd2a7b;
  --insta-c:   #8134af;
  --radius:    18px;
  --shadow:    0 1px 2px rgba(60,30,10,.04), 0 8px 24px -12px rgba(120,50,20,.18);
  --shadow-h:  0 2px 6px rgba(60,30,10,.06), 0 18px 40px -16px rgba(120,50,20,.3);
  --maxw:      1180px;
  --font:      "Noto Sans JP", system-ui, sans-serif;
  --display:   "M PLUS Rounded 1c", "Noto Sans JP", sans-serif;
  --hh:        64px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;height:auto}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.86);backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:var(--maxw);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 18px;
}
.brand{display:flex;align-items:center;gap:11px;min-width:0}
.brand-mark{
  flex:none;width:42px;height:42px;border-radius:13px;
  background:linear-gradient(150deg,var(--primary),oklch(70% 0.19 45));
  display:grid;place-items:center;font-family:var(--display);font-weight:800;color:#fff;font-size:23px;
  box-shadow:0 6px 14px -6px var(--primary);
}
.brand-text{min-width:0}
.brand-name{font-family:var(--display);font-weight:800;font-size:20px;letter-spacing:.01em;line-height:1.1;color:var(--ink)}
.brand-name b{color:var(--primary)}
.brand-sub{font-size:11.5px;color:var(--ink-faint);font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.insta-btn{
  flex:none;display:inline-flex;align-items:center;gap:8px;padding:9px 15px;border-radius:999px;
  background:linear-gradient(95deg,var(--insta-a),var(--insta-b) 55%,var(--insta-c));
  color:#fff;font-weight:700;font-size:13.5px;box-shadow:0 8px 18px -8px var(--insta-b);
  transition:transform .15s ease, box-shadow .15s ease;
}
.insta-btn:hover{transform:translateY(-1px);box-shadow:0 12px 24px -8px var(--insta-b)}
.insta-btn svg{width:17px;height:17px;flex:none}
.insta-btn .insta-label{white-space:nowrap}

/* ===== Category quick-nav ===== */
.catnav{
  position:sticky;top:var(--hh,64px);z-index:40;
  background:rgba(255,255,255,.92);backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
}
.catnav-inner{position:relative;max-width:var(--maxw);margin:0 auto;display:flex;align-items:center}
.catnav-track{
  flex:1;min-width:0;display:flex;gap:8px;padding:9px 14px;
  overflow-x:auto;scroll-behavior:smooth;scrollbar-width:none;-webkit-overflow-scrolling:touch;
}
.catnav-track::-webkit-scrollbar{display:none}
.catnav-arrow{
  flex:none;z-index:2;
  width:34px;height:34px;margin:0 6px;border-radius:50%;
  display:grid;place-items:center;cursor:pointer;
  background:var(--surface);border:1px solid var(--line);color:var(--ink-soft);
  box-shadow:0 3px 10px -3px rgba(60,30,10,.25);
  transition:background .15s ease,color .15s ease,border-color .15s ease,opacity .15s ease;
}
.catnav-arrow svg{width:17px;height:17px}
.catnav-arrow:hover{background:var(--primary);border-color:var(--primary);color:#fff}
.catnav-arrow[hidden]{display:none}
@media(max-width:640px){
  .catnav-arrow{width:30px;height:30px;margin:0 3px}
  .catnav-arrow svg{width:15px;height:15px}
  .catnav-track{padding:9px 8px}
}
.chip{
  flex:none;display:inline-flex;align-items:center;gap:7px;padding:8px 13px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);
  font-family:var(--font);font-weight:700;font-size:13px;color:var(--ink-soft);
  white-space:nowrap;cursor:pointer;scroll-margin:18px;
  transition:background .15s ease,color .15s ease,border-color .15s ease,box-shadow .15s ease;
}
.chip .chip-ic{width:16px;height:16px;flex:none;display:grid;place-items:center}
.chip .chip-ic svg{width:16px;height:16px}
.chip:hover{border-color:oklch(82% 0.07 50);color:var(--ink)}
.chip[aria-current="true"]{
  background:var(--primary);border-color:var(--primary);color:#fff;
  box-shadow:0 6px 14px -6px var(--primary-d);
}
.chip[aria-current="true"]:hover{color:#fff}

/* ===== Hero ===== */
.hero{max-width:var(--maxw);margin:0 auto;padding:28px 18px 6px}
.hero-row{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap}
.hero h1{font-family:var(--display);font-weight:800;font-size:clamp(24px,5vw,36px);line-height:1.15;letter-spacing:.01em;white-space:nowrap}
.hero h1 .hl{color:var(--primary);background:linear-gradient(transparent 62%, var(--accent) 62%);padding:0 .1em}
.hero-date{
  display:inline-flex;align-items:center;gap:9px;font-weight:700;color:var(--ink-soft);font-size:14.5px;
  background:var(--surface);border:1px solid var(--line);padding:8px 14px;border-radius:999px;box-shadow:var(--shadow);
}
.hero-date .dot{width:8px;height:8px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 4px oklch(63% 0.205 28 / .16)}
.hero-note{margin-top:13px;font-size:13.5px;color:var(--ink-faint);display:flex;align-items:center;gap:7px;flex-wrap:wrap}
.hero-note .tag{background:oklch(83% 0.16 88 / .35);color:var(--accent-ink);font-weight:700;border-radius:7px;padding:2px 8px;font-size:12px}

/* ===== Main / category section ===== */
main{max-width:var(--maxw);margin:0 auto;padding:8px 18px 40px}
.cat{margin-top:30px;scroll-margin-top:calc(var(--hh,64px) + 62px)}
.cat-head{display:flex;align-items:center;gap:13px;margin-bottom:15px}
.cat-ic{
  flex:none;width:50px;height:50px;border-radius:15px;display:grid;place-items:center;
  background:var(--cat-bg,oklch(94% 0.03 60));color:var(--cat-ink,var(--ink-soft));box-shadow:var(--shadow);
}
.cat-ic svg{width:26px;height:26px}
.cat-head .meta{min-width:0;flex:1}
.cat-name{font-family:var(--display);font-weight:800;font-size:clamp(18px,3.4vw,23px);line-height:1.2;letter-spacing:.01em}
.cat-sub{font-size:12.5px;color:var(--ink-faint);font-weight:600;margin-top:1px}
.cat-more-top{
  flex:none;align-self:center;display:inline-flex;align-items:center;gap:5px;
  font-size:12.5px;font-weight:700;color:var(--primary);
  background:var(--surface);border:1px solid var(--line);padding:7px 13px;border-radius:999px;
  transition:background .15s ease,border-color .15s ease;
}
.cat-more-top:hover{background:oklch(98% 0.02 60);border-color:oklch(82% 0.09 45)}
.cat-more-top svg{width:13px;height:13px}

/* ===== Product grid ===== */
.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
@media(min-width:560px){.grid{gap:16px;grid-template-columns:repeat(auto-fill,minmax(170px,1fr))}}

.card{
  position:relative;display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-h);border-color:oklch(85% 0.05 50)}
.card:active{transform:translateY(-1px)}
.thumb{position:relative;aspect-ratio:1/1;background:#fff;border-bottom:1px solid var(--line)}
.thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;padding:8%;background:#fff;opacity:0;transition:opacity .35s ease}
.thumb img.loaded{opacity:1}
.ph{position:absolute;inset:0;background:repeating-linear-gradient(135deg, oklch(95% 0.012 60) 0 11px, oklch(97.5% 0.008 60) 11px 22px);display:grid;place-items:center}
.ph span{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:11px;color:var(--ink-faint);letter-spacing:.02em;background:rgba(255,255,255,.8);padding:4px 9px;border-radius:6px}
.badge{
  position:absolute;top:9px;left:9px;z-index:2;display:flex;flex-direction:column;align-items:center;line-height:1;
  background:var(--primary);color:#fff;font-family:var(--display);font-weight:800;padding:7px 8px 6px;border-radius:11px;
  box-shadow:0 6px 14px -6px var(--primary-d);
}
.badge .off{font-size:9px;font-weight:700;letter-spacing:.06em;opacity:.92}
.badge .pct{font-size:17px;margin-top:1px}
.card-body{padding:11px 12px 13px;display:flex;flex-direction:column;flex:1}
.p-name{font-size:13px;font-weight:500;color:var(--ink);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.9em}
.rate{display:flex;align-items:center;gap:5px;margin-top:7px;white-space:nowrap;font-size:12px}
.stars{position:relative;display:inline-block;font-family:Arial,sans-serif;font-size:13px;line-height:1}
.stars::before{content:"\2605\2605\2605\2605\2605";color:#e3e3e0;letter-spacing:1.5px}
.stars-on{position:absolute;top:0;left:0;overflow:hidden;white-space:nowrap}
.stars-on::before{content:"\2605\2605\2605\2605\2605";color:#FFA41C;letter-spacing:1.5px}
.rate-num{font-weight:700;color:var(--ink-soft);font-size:11.5px}
.rate-cnt{color:#007185;font-size:11.5px}
.p-price{margin-top:auto;padding-top:9px;display:flex;align-items:baseline;gap:7px;flex-wrap:wrap}
.p-now{font-family:var(--display);font-weight:800;color:var(--primary);font-size:18px}
.p-now .yen{font-size:12px;font-weight:700;margin-right:1px}
.p-was{font-size:12px;color:var(--ink-faint);text-decoration:line-through}
.p-cta{
  margin-top:10px;display:flex;align-items:center;justify-content:center;gap:6px;
  background:oklch(96% 0.02 70);color:var(--accent-ink);border:1px solid oklch(88% 0.05 75);
  font-weight:700;font-size:12.5px;border-radius:10px;padding:8px;transition:background .15s ease;
}
.card:hover .p-cta{background:var(--accent);color:var(--accent-ink)}
.p-cta svg{width:13px;height:13px}

/* ===== Load more (button = category page; link = home) ===== */
.loadmore,.morelink{
  display:flex;align-items:center;justify-content:center;gap:9px;width:100%;margin-top:16px;padding:14px 18px;
  background:var(--surface);border:1.5px solid var(--line);border-radius:14px;
  font-family:var(--display);font-weight:800;font-size:15px;color:var(--primary);cursor:pointer;box-shadow:var(--shadow);
  transition:background .15s ease,border-color .15s ease,transform .12s ease;
}
.loadmore:hover,.morelink:hover{background:oklch(98% 0.02 60);border-color:oklch(82% 0.09 45);transform:translateY(-1px)}
.loadmore:active,.morelink:active{transform:translateY(0)}
.loadmore .lm-rest,.morelink .lm-rest{font-family:var(--font);font-weight:700;font-size:12px;color:var(--ink-faint);background:oklch(96% 0.012 60);border-radius:999px;padding:3px 10px}
.loadmore .lm-rest b,.morelink .lm-rest b{color:var(--ink-soft)}
.morelink svg{width:15px;height:15px}

/* ===== Back to top ===== */
.totop{
  position:fixed;right:16px;bottom:16px;z-index:45;width:46px;height:46px;border-radius:50%;
  background:var(--primary);color:#fff;border:none;cursor:pointer;display:grid;place-items:center;
  box-shadow:0 10px 24px -8px var(--primary-d);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.totop svg{width:21px;height:21px}
.totop.show{opacity:1;visibility:visible;transform:none}
.totop:hover{background:var(--primary-d)}

/* ===== Empty ===== */
.empty{text-align:center;padding:60px 20px;color:var(--ink-soft)}
.empty-ic{font-size:46px;line-height:1;margin-bottom:12px}
.empty p{font-family:var(--display);font-weight:800;font-size:18px}
.empty .empty-sub{font-family:var(--font);font-weight:500;font-size:13.5px;color:var(--ink-faint);margin-top:4px}

/* ===== Category page header ===== */
.cat-hero{max-width:var(--maxw);margin:0 auto;padding:22px 18px 6px}
.crumb{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--ink-soft);margin-bottom:14px}
.crumb svg{width:15px;height:15px}
.crumb a:hover{color:var(--primary)}
.cat-hero-row{display:flex;align-items:center;gap:15px}
.cat-hero-ic{flex:none;width:60px;height:60px;border-radius:18px;display:grid;place-items:center;background:var(--cat-bg,oklch(94% 0.03 60));color:var(--cat-ink,var(--ink-soft));box-shadow:var(--shadow)}
.cat-hero-ic svg{width:32px;height:32px}
.cat-hero h1{font-family:var(--display);font-weight:800;font-size:clamp(22px,4.4vw,30px);line-height:1.15}
.cat-hero .ch-sub{font-size:13px;color:var(--ink-faint);font-weight:600;margin-top:2px}

/* ===== Footer ===== */
footer{max-width:var(--maxw);margin:0 auto;padding:30px 18px 44px;color:var(--ink-faint);font-size:11.5px;line-height:1.7}
footer .f-brand{font-family:var(--display);font-weight:800;color:var(--ink-soft);font-size:14px;margin-bottom:6px}
footer a{color:var(--ink-soft);text-decoration:underline;text-underline-offset:2px}

/* ===== Footer Instagram CTA ===== */
.foot-cta{max-width:var(--maxw);margin:18px auto 0;padding:0 18px}
.foot-cta-inner{background:linear-gradient(120deg,oklch(97% 0.02 60),oklch(95% 0.03 75));border:1px solid var(--line);border-radius:24px;padding:30px 24px;text-align:center}
.foot-cta h2{font-family:var(--display);font-weight:800;font-size:clamp(20px,4vw,26px)}
.foot-cta p{color:var(--ink-soft);font-size:14px;margin-top:6px}
.foot-cta .insta-btn{margin-top:18px;font-size:15px;padding:12px 22px}
.foot-cta .insta-btn svg{width:19px;height:19px}