/* Neji. Games: lightweight, responsive CSS (no framework) */
:root{
  --bg: #ffffff;
  --fg: #0a1018;
  --muted: #5b6675;
  --brand: #425a5a;
  --accent: #c38698;
  --card: #f7f8fa;
  --border: #e6e9ef;
  --shadow: 0 10px 30px rgba(66,90,90,.05);
}

@media (prefers-color-scheme: dark){
  :root{
    --bg: #0a1018;
    --fg: #e6edf3;
    --muted: #9aa7b4;
    --card: #0f1721;
    --border: #1f2a37;
    --shadow: 0 8px 24px rgba(0,0,0,.35);
  }
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.75 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Helvetica Neue", Arial;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

.container{
  width:min(1100px, calc(100% - 32px));
  margin-inline:auto;
}

.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(140%) blur(6px);
  background: color-mix(in oklab, var(--bg) 80%, transparent);
  border-bottom: 1px solid var(--border);
}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 16px;
  padding: 12px 0;
}

.brand-link{
  display:flex;
  align-items:center;
  text-decoration:none;
}
.logo{
  display:block;
  height: 40px;
  width:auto;
  vertical-align:middle;
}

.site-nav ul{
  list-style:none;
  display:flex;
  gap: clamp(14px, 2.2vw, 28px);
  padding:0;margin:0;
  justify-content:center;
  align-items:center;
}
.site-nav a{
  text-decoration:none;
  color: var(--fg);
  font-weight:600;
  padding: 8px 12px;
  border: 1px solid transparent;
}
.site-nav a:hover{
  border-color: color-mix(in oklab, var(--brand) 40%, var(--border));
  background: color-mix(in oklab, var(--brand) 10%, transparent);
}
.site-nav a.active{
  border-color: var(--brand);
}

.site-main{padding: 28px 0 48px;}

.hero .center{
  display:grid;
  place-items:center;
  min-height: 65svh;
}

.poster{
  max-width:min(750px, 100%);
  padding: clamp(10px, 1.6vw, 16px);
}
.poster figure{margin:0}
.poster img{
  display:block;
  width:100%;
  height:auto;
  aspect-ratio: 5 / 7;
  object-fit: contain;
  background: var(--card);
  box-shadow: var(--shadow);
}
.poster figcaption{
  color: var(--muted);
  font-size: .9rem;
  margin-top: 8px;
  text-align:center;
}
.poster-label{
  text-align:center;
  font-weight:700;
  font-size: clamp(18px, 2.4vw, 22px);
  margin: 0 0 12px 0;
  color: var(--brand);
}

.site-footer{
  border-top: 1px solid var(--border);
  padding: 18px 0;
  color: var(--muted);
  text-align:center;
}

.page-title{font-size: clamp(24px, 3.2vw, 34px); margin: 8px 0 6px 0;}
.muted{color: var(--muted); margin: 0 0 16px 0;}

.post{margin: 12px 0 0;}
.prose{max-width: 78ch; padding: 8px 0;}
.prose p{margin: 0 0 2em 0;}
.prose h3{margin: 1.6em 0 .6em; font-size: 1.1em;}
.prose code{
  background: color-mix(in oklab, var(--card) 85%, var(--bg));
  border: 1px solid var(--border);
  padding: .1em .35em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: .95em;
}
.prose figure{margin: 1em 0 3em;}
.prose img{
  display:block;
  max-width:100%;
  height:auto;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.prose figcaption{color: var(--muted); font-size: .9rem; margin-top: .5em; text-align: center;}

.post-list{margin: 8px 0;}
.post-row{
  background: var(--card);
  border:1px solid var(--border);
  margin: 10px 0;
  box-shadow: var(--shadow);
  overflow: clip;
}
.post-row > summary{
  display:grid;
  grid-template-columns: 9rem 1fr auto;
  align-items:center;
  gap: 12px;
  padding: 12px 14px;
  cursor:pointer;
  list-style:none;
  font-weight:700;
  outline: none;
}
.post-row > summary:focus{ outline: none; }
.post-row > summary:focus-visible{
  outline: 2px solid color-mix(in oklab, var(--brand) 60%, transparent);
  outline-offset: 2px;
}

.post-row > summary::-webkit-details-marker{display:none;}
.post-row > summary .date{
  color: var(--brand);
  font-weight:800;
  font-feature-settings: "tnum";
  white-space: nowrap;
}
.post-row > summary .title{color: var(--fg);}

.post-row[open] > summary::after{content:"−";}

.post-row[open] > summary{ border-bottom: 1px dashed var(--border); }

.post-row .post{ padding: 12px 16px 16px; }
.post-row .post .prose{ max-width: 80ch; }

@media (max-width: 640px){
  .site-header .container{flex-direction: column; align-items: center;}
  .post-row > summary{grid-template-columns: 7.5rem 1fr auto;}
}