:root {
  --bg: #0e1117;
  --card: #141926;
  --card-border: #262d3d;
  --text: #e2e7f0;
  --muted: #8b94a7;
  --accent: #4cc2ff;
  --ok: #63d68a;
  --warn: #ffb347;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.9;
}

/* ---- 背景ループ動画（読み込めなくてもサイトは成立する） ---- */
.bg-video {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background: var(--bg) url("jdtimes-bg-poster.jpg") center / cover no-repeat;
}
.bg-video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.45) saturate(0.85);
}
.bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14, 17, 23, 0.62) 0%, rgba(14, 17, 23, 0.85) 50%, rgba(14, 17, 23, 0.96) 100%);
}
@media (prefers-reduced-motion: reduce) {
  .bg-video video { display: none; }
}
/* スマホはposter静止画優先（軽量・可読性優先） */
@media (max-width: 700px) {
  .bg-video video { display: none; }
}

.wrap { max-width: 760px; margin: 0 auto; padding: 24px 20px 60px; }

header.site {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  padding: 8px 0 16px;
  border-bottom: 1px solid var(--card-border);
  margin-bottom: 24px;
}
header.site .brand { font-size: 22px; font-weight: 700; letter-spacing: 0.5px; }
header.site .brand a { color: var(--text); text-decoration: none; }
header.site .brand span { color: var(--accent); }
header.site nav { margin-left: auto; display: flex; gap: 14px; }
header.site nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
header.site nav a:hover { color: var(--accent); }

.hero { padding: 28px 0 8px; }
.hero h1 { font-size: 26px; line-height: 1.5; }
.hero p { color: var(--muted); margin-top: 8px; }

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 20px 22px;
  margin: 18px 0;
}
.card h2 { font-size: 17px; color: var(--accent); margin-bottom: 10px; }
.card .status { display: inline-block; font-size: 12px; font-weight: 700; border-radius: 4px; padding: 1px 8px; margin-left: 8px; vertical-align: middle; }
.status.prep { background: var(--warn); color: #321; }
.status.info { background: var(--accent); color: #06121a; }

ul.article-list { list-style: none; }
ul.article-list li { padding: 12px 0; border-bottom: 1px dashed var(--card-border); }
ul.article-list li:last-child { border-bottom: none; }
ul.article-list a { color: var(--text); text-decoration: none; font-weight: 600; }
ul.article-list a:hover { color: var(--accent); }
ul.article-list .date { color: var(--muted); font-size: 13px; margin-right: 10px; font-weight: 400; }
ul.article-list .cat { color: var(--muted); font-size: 12px; display: block; margin-top: 2px; }

/* ---- 記事本文（可読性最優先・不透明カード） ---- */
article.post { background: var(--card); border: 1px solid var(--card-border); border-radius: 12px; padding: 28px 26px; }
article.post h1 { font-size: 24px; line-height: 1.6; margin-bottom: 6px; }
article.post .meta { color: var(--muted); font-size: 13px; margin-bottom: 22px; padding-bottom: 14px; border-bottom: 1px solid var(--card-border); }
article.post h2 { font-size: 19px; margin: 28px 0 10px; padding-left: 10px; border-left: 3px solid var(--accent); }
article.post h3 { font-size: 16px; margin: 22px 0 8px; color: var(--accent); }
article.post p { margin: 12px 0; }
article.post ul, article.post ol { margin: 12px 0 12px 24px; }
article.post li { margin: 4px 0; }
article.post blockquote { border-left: 3px solid var(--card-border); color: var(--muted); padding: 4px 0 4px 14px; margin: 12px 0; }
article.post code { background: rgba(255, 255, 255, 0.08); border-radius: 4px; padding: 1px 6px; font-size: 14px; }
article.post pre { background: #0a0d13; border: 1px solid var(--card-border); border-radius: 8px; padding: 14px; overflow-x: auto; margin: 14px 0; }
article.post pre code { background: none; padding: 0; }
article.post a { color: var(--accent); }

article.post .lead { color: var(--muted); font-size: 15px; margin: 0 0 18px; padding-bottom: 14px; border-bottom: 1px dashed var(--card-border); }
.aeo-box { background: rgba(76, 194, 255, 0.06); border: 1px solid rgba(76, 194, 255, 0.25); border-radius: 8px; padding: 14px 18px; margin: 18px 0; }
.aeo-box h2 { border-left: none !important; padding-left: 0 !important; margin: 0 0 8px !important; font-size: 15px !important; color: var(--accent); }
.aeo-box ul { margin: 0 0 0 20px !important; }
.aeo-box.summary { background: rgba(99, 214, 138, 0.06); border-color: rgba(99, 214, 138, 0.3); }
.aeo-box.summary h2 { color: var(--ok); }
.sources { margin-top: 22px; padding-top: 14px; border-top: 1px solid var(--card-border); }
.sources h2 { border-left: none !important; padding-left: 0 !important; font-size: 14px !important; color: var(--muted); }
.sources ul { margin-left: 20px; font-size: 13px; word-break: break-all; }

.updates-table { width: 100%; border-collapse: collapse; }
.updates-table th, .updates-table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--card-border); font-size: 14px; }
.updates-table th { color: var(--muted); font-weight: 600; }
.updates-table a { color: var(--accent); }

footer.site {
  margin-top: 40px;
  padding-top: 16px;
  border-top: 1px solid var(--card-border);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}
footer.site a { color: var(--muted); }

@media (max-width: 700px) {
  body { font-size: 15.5px; }
  .wrap { padding: 16px 14px 48px; }
  article.post { padding: 20px 16px; }
  header.site nav { margin-left: 0; }
}