:root{
  --paper:#F9F8F6; --ink:#18191C; --ink-soft:#3C4043;
  --signal:#D63B2F; --signal-deep:#A82B22; --soft:#F4EBE8;
  --muted:#8A8D90; --line:#E6E3DD;
  --serif:'Shippori Mincho',serif;
  --sans:'Noto Sans JP',sans-serif;
  --mono:'Space Mono',ui-monospace,monospace;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{-webkit-text-size-adjust:100%;}
body{
  background:var(--paper); color:var(--ink);
  font-family:var(--sans); font-weight:400; line-height:1.8;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}

/* ── top bar ───────────────────────────── */
.topbar{
  display:flex; align-items:center; justify-content:space-between;
  max-width:1080px; margin:0 auto; padding:20px 24px 18px;
}
.topbar .brand{display:flex;align-items:center;gap:9px;}
.topbar .brand img{height:28px;width:auto;}
.topbar .nav-contact{
  font-family:var(--mono); font-size:12px; letter-spacing:.04em;
  color:var(--ink-soft); border-bottom:1px solid var(--line); padding-bottom:2px;
  transition:border-color .2s,color .2s;
}
.topbar .nav-contact:hover{color:var(--signal);border-color:var(--signal);}

/* ── masthead ──────────────────────────── */
.masthead{max-width:1080px;margin:0 auto;padding:40px 24px 0;text-align:center;}
.kicker{
  font-family:var(--mono); font-size:12px; font-weight:700;
  letter-spacing:.34em; color:var(--signal); text-transform:uppercase;
  display:flex; align-items:center; justify-content:center; gap:14px;
}
.kicker::before,.kicker::after{content:"";flex:0 0 48px;height:1px;background:var(--signal);opacity:.5;}
.masthead h1{
  font-family:var(--serif); font-weight:800;
  font-size:clamp(34px,6.4vw,68px); line-height:1.24; letter-spacing:.01em;
  margin:22px auto 0; max-width:15ch;
}
.byline{
  font-family:var(--mono); font-size:11px; letter-spacing:.12em;
  color:var(--muted); margin-top:22px; text-transform:uppercase;
}
.dateline{
  display:flex; flex-wrap:wrap; align-items:baseline; justify-content:center; gap:8px 18px;
  margin-top:30px; padding-top:18px; border-top:1px solid var(--line);
  font-family:var(--mono); font-size:13px; color:var(--ink-soft);
}
.dateline .date{font-weight:700;letter-spacing:.06em;color:var(--ink);}
.dateline .ratio{color:var(--muted);letter-spacing:.02em;}
.dateline .ratio b{color:var(--signal);font-weight:700;}

/* ── entries ───────────────────────────── */
.feed{max-width:720px;margin:0 auto;padding:8px 24px 0;}
.masthead .intro{
  font-size:15.5px; color:var(--ink-soft); line-height:2;
  margin:20px auto 0; max-width:44em; text-wrap:balance;
}
.masthead .intro b{color:var(--ink);font-weight:700;}

.entry{padding:40px 0;border-bottom:1px solid var(--line);}
.entry-meta{
  display:flex; align-items:center; gap:14px; flex-wrap:wrap;
  font-family:var(--mono); font-size:12px; margin-bottom:16px;
}
.tag{
  color:var(--signal); font-weight:700; letter-spacing:.16em;
  text-transform:uppercase;
}
.tag::before{content:"● ";font-size:9px;vertical-align:2px;}
.src-handle{
  color:var(--muted); letter-spacing:.02em;
  border-left:1px solid var(--line); padding-left:14px;
}
.entry h2{
  font-family:var(--serif); font-weight:700;
  font-size:clamp(22px,3.4vw,28px); line-height:1.55; letter-spacing:.01em;
  margin:0 0 16px;
}
.entry p.body{
  font-size:15.5px; line-height:2.05; color:var(--ink-soft); margin:0;
}
.entry figure{margin:22px 0 0;}
.entry figure img{width:100%;border:1px solid var(--line);border-radius:2px;}
.entry figcaption{
  font-family:var(--mono); font-size:11px; color:var(--muted);
  letter-spacing:.02em; margin-top:8px;
}
.memo{
  position:relative; margin:22px 0 18px; padding:18px 20px 18px 22px;
  background:var(--soft); border-radius:2px;
}
.memo::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--signal);}
.memo .memo-label{
  font-family:var(--mono); font-size:11px; font-weight:700;
  letter-spacing:.2em; text-transform:uppercase; color:var(--signal-deep);
  display:block; margin-bottom:7px;
}
.memo p{font-size:14.5px;line-height:1.95;color:var(--ink-soft);margin:0;}
.source-link{
  display:inline-flex; align-items:center; gap:7px;
  font-family:var(--mono); font-size:12px; color:var(--muted);
  letter-spacing:.02em; transition:color .2s;
}
.source-link:hover{color:var(--signal);}
.source-link .arr{transition:transform .2s;}
.source-link:hover .arr{transform:translate(2px,-2px);}

/* ── day nav (prev / index / next) ─────── */
.day-nav{
  max-width:720px; margin:0 auto; padding:34px 24px 0;
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  font-family:var(--mono); font-size:12px; letter-spacing:.04em;
}
.day-nav a{color:var(--ink-soft);transition:color .2s;}
.day-nav a:hover{color:var(--signal);}
.day-nav .index{color:var(--muted);}

/* ── archive list (hub only) ───────────── */
.archive{max-width:720px;margin:0 auto;padding:54px 24px 0;}
.archive-title{
  font-family:var(--mono); font-size:12px; font-weight:700; letter-spacing:.2em;
  text-transform:uppercase; color:var(--signal); margin-bottom:6px;
  display:flex; align-items:center; gap:12px;
}
.archive-title::after{content:"";flex:1;height:1px;background:var(--line);opacity:.7;}
.archive ul{list-style:none;}
.archive li{border-bottom:1px solid var(--line);}
.archive li a{display:block;padding:16px 2px;transition:color .2s;}
.archive li a:hover{color:var(--signal);}
.archive .d{
  font-family:var(--mono); font-size:12px; font-weight:700; color:var(--ink);
  letter-spacing:.04em; display:inline-block; margin-bottom:4px;
}
.archive .h{display:block;font-size:14px;color:var(--ink-soft);line-height:1.7;}

/* ── CTA ───────────────────────────────── */
.cta{
  max-width:720px; margin:0 auto; padding:46px 24px 10px; text-align:center;
}
.cta p{font-size:15px;color:var(--ink-soft);margin-bottom:22px;line-height:1.9;}
.cta a{
  display:inline-block; font-family:var(--mono); font-weight:700; font-size:13px;
  letter-spacing:.08em; color:var(--paper); background:var(--ink);
  padding:15px 30px; border-radius:2px; transition:background .2s,transform .2s;
}
.cta a:hover{background:var(--signal);transform:translateY(-2px);}

/* ── footer ────────────────────────────── */
.foot{
  max-width:1080px; margin:60px auto 0; padding:26px 24px 40px;
  border-top:1px solid var(--line);
  display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between;
  gap:14px;
}
.foot .f-left{font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.06em;}
.foot .f-left a{color:var(--ink-soft);}
.foot .f-left a:hover{color:var(--signal);}
.foot .f-copy{font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:.04em;}

/* ── motion ────────────────────────────── */
@keyframes rise{from{opacity:0;transform:translateY(14px);}to{opacity:1;transform:none;}}
.rise{animation:rise .7s cubic-bezier(.2,.7,.2,1) both;}
.d1{animation-delay:.06s;} .d2{animation-delay:.12s;} .d3{animation-delay:.18s;}
.entry:nth-child(1){animation:rise .7s cubic-bezier(.2,.7,.2,1) both;animation-delay:.05s;}
.entry:nth-child(2){animation:rise .7s cubic-bezier(.2,.7,.2,1) both;animation-delay:.13s;}
.entry:nth-child(3){animation:rise .7s cubic-bezier(.2,.7,.2,1) both;animation-delay:.21s;}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;}}

@media (max-width:600px){
  .entry h2{font-size:21px;}
  .masthead .intro{font-size:14.5px;}
  .dateline .ratio{flex-basis:100%;}
}