/* noren shared styles
   Radius system: buttons = pill (999px) / panels & images = 14px / small chips = 8px
   Theme: auto (prefers-color-scheme). One accent: 藍 (indigo).
   Brand device (logo D): a 藍 rod over 墨 shapes, mirroring the wordmark. */
:root{
  --bg:#f3f4f1;
  --surface:#fcfcfa;
  --tint:#e8eaf3;
  --ink:#1c2140;
  --ink-2:#4a4f66;
  --line:#d9dbe2;
  --accent:#2f3a8f;
  --accent-ink:#fcfcfa;
  --accent-hover:#232c73;
  --focus:#2f3a8f;
  --shadow:0 24px 48px -28px rgba(28,33,64,.35);

  --r-panel:14px; --r-chip:8px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#121429;
    --surface:#1a1d36;
    --tint:#20244a;
    --ink:#eceef7;
    --ink-2:#a9adc6;
    --line:#2d3155;
    --accent:#a7b0f5;
    --accent-ink:#121429;
    --accent-hover:#c3c9fa;
    --focus:#a7b0f5;
    --shadow:0 24px 48px -28px rgba(0,0,0,.6);
    color-scheme:dark;
  }
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{-webkit-text-size-adjust:100%;scroll-padding-top:84px;}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth;}}
body{
  background:var(--bg);color:var(--ink);
  font-family:'Zen Kaku Gothic New',system-ui,sans-serif;font-weight:400;
  font-size:16px;line-height:1.9;-webkit-font-smoothing:antialiased;
  overflow-x:clip;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;}
.ico{width:1.15em;height:1.15em;flex-shrink:0;fill:currentColor;}
.wrap{width:100%;max-width:1160px;margin:0 auto;padding:0 24px;}
.ph{display:inline-block;} /* keeps Japanese phrases together */
h1,h2,h3{font-weight:700;line-height:1.45;letter-spacing:.02em;word-break:auto-phrase;text-wrap:balance;}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:4px;}
.skip{position:absolute;left:12px;top:-60px;z-index:100;background:var(--accent);color:var(--accent-ink);padding:10px 16px;border-radius:999px;text-decoration:none;font-weight:700;}
.skip:focus{top:12px;}

/* header */
.site-head{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:68px;}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none;}
.wordmark{display:block;height:26px;width:auto;}
.wm-rod{fill:var(--accent);}
.wm-txt{fill:var(--ink);}
.brand-sub{display:block;font-size:.72rem;font-weight:500;color:var(--ink-2);letter-spacing:.06em;padding-left:14px;border-left:1px solid var(--line);line-height:1.4;}
.nav{display:flex;align-items:center;gap:28px;}
.nav a{font-size:.88rem;font-weight:700;color:var(--ink-2);text-decoration:none;padding:6px 0;}
.nav a:hover{color:var(--ink);}
.nav a.btn-primary{color:var(--accent-ink);padding:8px 18px;}
.nav a.btn-primary:hover{color:var(--accent-ink);}
@media (max-width:860px){.nav a.nav-link{display:none;}}
@media (max-width:440px){.brand-sub{display:none;}.wordmark{height:22px;}}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:48px;padding:12px 26px;border-radius:999px;font-weight:700;font-size:.95rem;text-decoration:none;white-space:nowrap;border:1.5px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .15s ease;touch-action:manipulation;}
.btn:active{transform:translateY(1px) scale(.99);}
.btn-primary{background:var(--accent);color:var(--accent-ink);}
.btn-primary:hover{background:var(--accent-hover);}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--ink);color:var(--bg);}
.btn-sm{min-height:44px;padding:8px 18px;font-size:.85rem;}

/* noren brand mark: rod + 4 cloths */
.noren{display:flex;flex-direction:column;align-items:stretch;}
.noren-rod{height:6px;border-radius:3px;background:var(--accent);}
.noren-cloths{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;padding:0 6%;}
.noren-cloths span{display:block;border-radius:0 0 10px 10px;transform-origin:top center;}
.noren-cloths span{background:var(--ink);}

/* footer */
.site-foot{border-top:1px solid var(--line);padding:32px 0 40px;font-size:.8rem;color:var(--ink-2);}
.site-foot .wrap{display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;align-items:center;}
.site-foot a{color:var(--ink-2);}
.site-foot a:hover{color:var(--ink);}