:root{
  --paper:#f8f7f5; --page:#eceae5; --ink:#1a1a19; --ink-2:#55554f; --ink-3:#6b6b66;
  --line:#d9d6d0; --line-2:#c9c6bf; --accent:#1f6feb; --accent-ink:#0a58ca;
  --mono:ui-monospace,'SF Mono',Menlo,Consolas,monospace;
  --sans:'Helvetica Neue',Helvetica,'Hiragino Sans','Noto Sans JP',Arial,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--page);color:var(--ink);font-family:var(--sans);
     -webkit-font-smoothing:antialiased;line-height:1.6}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-ink)}
.wrap{max-width:1280px;margin:0 auto;background:var(--paper);border-left:1px solid var(--line);
      border-right:1px solid var(--line);min-height:100vh}
.mono{font-family:var(--mono)}

/* header ------------------------------------------------------------ */
.hd{display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px clamp(20px,5vw,64px);border-bottom:1px solid var(--ink)}
/* The brand sits opposite a very large hero headline, so it needs enough weight
   to hold its side. The square echoes the header on the detail pages. */
.hd .brand{font-family:var(--mono);font-size:17px;font-weight:700;letter-spacing:.09em;
           display:inline-flex;align-items:center;gap:10px}
.hd .brand::before{content:'';width:11px;height:11px;background:var(--accent);flex:none}
.hd nav{display:flex;align-items:center;gap:clamp(14px,2.4vw,26px);font-family:var(--mono);
        font-size:12.5px;letter-spacing:.06em;color:var(--ink-2)}
.gh{display:inline-flex;align-items:center;gap:6px}
.gh svg{width:15px;height:15px;flex:none}
.btn.solid svg{width:15px;height:15px;margin-right:7px;vertical-align:-2px}
.lang{display:inline-flex;border:1px solid var(--line-2);border-radius:4px;overflow:hidden}
.lang a{padding:3px 9px;font-size:11.5px;color:var(--ink-2);letter-spacing:.08em}
.lang a[aria-current]{background:var(--ink);color:#fff}

/* hero (top) --------------------------------------------------------- */
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,300px);gap:clamp(24px,5vw,56px);
      align-items:start;padding:clamp(40px,7vw,88px) clamp(20px,5vw,64px);border-bottom:1px solid var(--line)}
.hero h1{margin:0;font-size:clamp(44px,8.2vw,104px);line-height:1.06;letter-spacing:-.03em;font-weight:700}
.hero h1 .b{color:var(--accent)}
.hero p{margin:0;font-size:13.5px;line-height:1.9;color:var(--ink-2)}

/* band --------------------------------------------------------------- */
.band{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line)}
.band > div{padding:clamp(18px,2.6vw,28px) clamp(16px,2.4vw,28px);border-right:1px solid var(--line)}
.band > div:last-child{border-right:0}
.band h2{margin:0 0 6px;font-size:clamp(17px,2vw,21px);letter-spacing:-.01em}
.band p{margin:0;font-size:12.5px;line-height:1.7;color:var(--ink-3)}

/* list (top) --------------------------------------------------------- */
.row{display:grid;grid-template-columns:64px minmax(0,260px) minmax(0,1fr) minmax(0,190px);
     gap:clamp(12px,2vw,26px);align-items:start;padding:clamp(22px,3vw,34px) clamp(20px,5vw,64px);
     border-bottom:1px solid var(--line);color:inherit;transition:background .15s ease}
.row:hover{background:var(--ink);color:#fff}
.row:hover .num,.row:hover .stack,.row:hover .desc{color:rgba(255,255,255,.72)}
.num{font-family:var(--mono);font-size:12px;color:var(--accent)}
.row h2{margin:0;font-size:clamp(20px,2.6vw,27px);font-weight:400;letter-spacing:-.01em}
.desc{margin:0;font-size:13px;line-height:1.8;color:var(--ink-2)}
.stack{font-family:var(--mono);font-size:11.5px;color:var(--ink-3);text-align:right}

/* detail ------------------------------------------------------------- */
.back{display:inline-block;padding:clamp(24px,4vw,40px) clamp(20px,5vw,64px) 0;
      font-size:12.5px;color:var(--ink-3)}
.head{padding:14px clamp(20px,5vw,64px) clamp(28px,4vw,44px)}
.tags{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.kind{font-size:11.5px;padding:3px 9px;border:1px solid var(--accent);border-radius:3px;
      color:var(--accent);background:rgba(31,111,235,.06)}
.head h1{margin:0 0 14px;font-size:clamp(30px,5vw,46px);font-weight:400;letter-spacing:-.02em}
.head .lead{margin:0 0 22px;max-width:56ch;font-size:14px;line-height:1.9;color:var(--ink-2)}
.cta{display:flex;gap:10px;flex-wrap:wrap}
.btn{display:inline-block;padding:10px 16px;font-size:13px;border:1px solid var(--ink);border-radius:3px}
.btn.solid{background:var(--ink);color:#fff}
.btn.ghost{background:transparent;color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff}

.shot{margin:0 clamp(20px,5vw,64px) clamp(28px,4vw,44px);border:1px solid var(--line);
      background:var(--paper);overflow:hidden}
/* Screenshots come from each repo's README and have no common aspect ratio,
   so show them whole rather than cropping to a fixed frame. */
.shot img{display:block;width:100%;height:auto}
.shot.empty{background:repeating-linear-gradient(135deg,#f2f0ec 0 10px,#f8f7f5 10px 20px);
            aspect-ratio:16/9;display:flex;align-items:flex-end}
.shot figcaption{font-family:var(--mono);font-size:11px;color:#a6a29a;padding:10px 14px;
                 border-top:1px solid var(--line)}
.shot.empty figcaption{border-top:0}

.sec{display:grid;grid-template-columns:minmax(120px,180px) minmax(0,1fr);gap:clamp(16px,3vw,40px);
     padding:clamp(24px,3.6vw,40px) clamp(20px,5vw,64px);border-top:1px solid var(--line)}
.sec > h2{margin:0;font-size:13px;font-weight:400;color:var(--ink-3)}
.feat{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:0 clamp(20px,3vw,36px)}
.feat > div{padding:16px 0;border-top:1px solid var(--line)}
.feat h3{margin:0 0 5px;font-size:14px;font-weight:700}
.feat p{margin:0;font-size:12.5px;line-height:1.75;color:var(--ink-2)}
.note{margin:0 0 16px;font-size:13px;line-height:1.85;color:var(--ink-2);max-width:62ch}
pre{margin:0;background:#1a1a19;color:#e8e6e1;border-radius:4px;padding:18px 20px;
    font-family:var(--mono);font-size:12.5px;line-height:1.9;overflow-x:auto}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.chip{font-family:var(--mono);font-size:11.5px;padding:5px 11px;border:1px solid var(--line-2);border-radius:3px;color:var(--ink-2)}
.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:18px}
.metrics dt{font-size:11.5px;color:var(--ink-3);margin-bottom:3px}
.metrics dd{margin:0;font-size:clamp(19px,2.4vw,24px);letter-spacing:-.01em}
.notes{width:100%;border-collapse:collapse}
.notes th{width:120px;text-align:left;font-family:var(--mono);font-size:11.5px;font-weight:400;
          color:var(--ink-3);padding:12px 12px 12px 0;border-bottom:1px solid var(--line);vertical-align:top}
.notes td{font-size:13px;line-height:1.8;color:var(--ink-2);padding:12px 0;border-bottom:1px solid var(--line)}
.others{display:flex;flex-wrap:wrap;gap:10px}
.others a{padding:8px 14px;font-size:13px;border:1px solid var(--line-2);border-radius:3px;color:var(--ink)}
.others a:hover{background:var(--ink);color:#fff;border-color:var(--ink)}

/* footer ------------------------------------------------------------- */
.ft{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
    padding:clamp(24px,3vw,34px) clamp(20px,5vw,64px);border-top:1px solid var(--line);
    font-size:12px;color:var(--ink-3)}
.ft .r{display:flex;gap:clamp(14px,2vw,24px)}

@media (max-width:900px){
  .hero{grid-template-columns:1fr}
  .band{grid-template-columns:repeat(2,1fr)}
  .band > div:nth-child(2n){border-right:0}
  .band > div:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .row{grid-template-columns:44px 1fr;gap:6px 14px}
  .row .desc{grid-column:2}
  .stack{grid-column:2;text-align:left}
  .sec{grid-template-columns:1fr;gap:12px}
}
@media (max-width:560px){
  .band{grid-template-columns:1fr}
  .band > div{border-right:0;border-bottom:1px solid var(--line)}
  .notes th{width:90px}
}