@font-face {
  font-family: "Apercu";
  src: url("/fonts/apercu-regular.otf") format("opentype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Apercu";
  src: url("/fonts/apercu-bold.otf") format("opentype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root{
  --bg:#FFFFFF;
  --ink:#0D0D0D;
  --muted:#8A8A8A;
  --border:#EDEDED;
}
*{box-sizing:border-box;margin:0;padding:0;}
body{background:var(--bg);color:var(--ink);font-family:"Apercu",ui-sans-serif,system-ui,sans-serif;font-weight:400;line-height:1.6;}
h1,h2,h3{font-family:"Apercu",ui-sans-serif,system-ui,sans-serif;font-weight:700;}
a{color:inherit;}

.wrap{max-width:1000px;margin:0 auto;padding:0 28px;}

nav{position:sticky;top:0;background:rgba(255,255,255,0.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);z-index:10;}
nav .wrap{display:flex;align-items:center;justify-content:space-between;padding:20px 28px;}
nav .brand{display:block;line-height:0;}
nav .links{display:flex;gap:28px;font-size:14px;color:var(--muted);}
nav .links a{text-decoration:none;color:inherit;}
nav .links a:hover{color:var(--ink);}

.logo-mark{height:64px;width:auto;display:block;}
.logo-mark .spin-group{
  transform-origin:130.7px 127.6px;
  transform:rotate(0deg);
  transition:transform .5s cubic-bezier(.34,1.56,.64,1);
}
.logo-mark .p1{fill:#FD7318;}
.logo-mark .p2{fill:#473BF0;}
.logo-mark .p3{fill:#0FBF8F;}
.logo-mark .p4{fill:#E23E9C;}

@media (prefers-reduced-motion: reduce){
  .logo-mark .spin-group{
    transition:none;
  }
}

main{padding:60px 0 90px;}
main .label{color:var(--muted);font-size:13px;letter-spacing:0.02em;font-weight:700;margin-bottom:28px;}

.post-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:28px;margin-bottom:48px;}
.post-card{display:block;text-decoration:none;color:inherit;border:1px solid var(--border);border-radius:16px;overflow:hidden;transition:transform .15s ease, box-shadow .15s ease;}
.post-card:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(0,0,0,0.08);}
.post-card .cover{width:100%;aspect-ratio:16/9;object-fit:cover;display:block;background:#f4f4f4;}
.post-card .cover.placeholder{display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:13px;}
.post-card .body{padding:18px 20px 22px;}
.post-card .date{color:var(--muted);font-size:12.5px;margin-bottom:8px;}
.post-card h2{font-size:19px;line-height:1.3;margin-bottom:8px;}
.post-card p{color:#444;font-size:14px;line-height:1.5;}

.pagination{display:flex;justify-content:center;align-items:center;gap:18px;font-size:14px;}
.pagination a{text-decoration:none;font-weight:700;color:var(--ink);border:1px solid var(--border);border-radius:999px;padding:8px 18px;}
.pagination a:hover{border-color:var(--ink);}
.pagination .disabled{color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:8px 18px;opacity:.4;}
.pagination .page-num{color:var(--muted);}

.post h1.post-title{font-size:clamp(28px,5vw,44px);letter-spacing:-0.01em;margin-bottom:12px;line-height:1.15;}
.post .date{color:var(--muted);font-size:13.5px;margin-bottom:28px;}
.post .cover-hero{width:100%;max-height:460px;object-fit:cover;border-radius:16px;margin-bottom:36px;display:block;}
.post .content{max-width:680px;font-size:18px;color:#222;}
.post .content p{margin-bottom:20px;}
.post .content img{max-width:100%;height:auto;border-radius:12px;margin:28px 0;display:block;}
.post .content h2{font-size:26px;margin:36px 0 16px;}
.post .content h3{font-size:21px;margin:28px 0 12px;}
.post .content a{color:var(--ink);text-decoration:underline;}
.post .content ul, .post .content ol{margin:0 0 20px 22px;}
.post .content blockquote{border-left:3px solid var(--border);padding-left:18px;color:var(--muted);margin:24px 0;font-style:italic;}

.back-link{display:inline-block;margin-bottom:32px;font-size:14px;color:var(--muted);text-decoration:none;}
.back-link:hover{color:var(--ink);}

footer{padding:40px 0 60px;text-align:center;color:var(--muted);font-size:13px;border-top:1px solid var(--border);margin-top:40px;}