/* news.css - enhanced styles for news pages (article + index) */
:root{
  --bg: #f5f7fb;
  --card: #ffffff;
  --muted: #6b7280;
  --primary: #2563eb;
  --accent: #0ea5e9;
  --radius: 14px;
  --shadow: 0 10px 40px rgba(0,0,0,.08);
  --max-width: 960px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, "Roboto Mono", "Noto Sans JP", monospace;
  --ui-font: "Inter", "Noto Sans JP", system-ui, -apple-system, "Segoe UI", Roboto, "Hiragino Kaku Gothic Pro", "Yu Gothic", sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--ui-font);
  background:var(--bg);
  color:#111827;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.6;
  padding:24px 12px;
}
.container{
  max-width:var(--max-width);
  margin:48px auto;
  background:var(--card);
  padding:36px;
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
}
/* Header / meta row */
.meta-row{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}
.meta-left{display:flex;flex-direction:column}
.tags{display:flex;gap:8px;flex-wrap:wrap}
.tag{background:#eef2ff;color:var(--primary);padding:4px 8px;border-radius:999px;font-size:0.85rem}
.back-link{display:inline-flex;align-items:center;gap:8px;color:var(--muted);text-decoration:none}
.back-link:hover{color:var(--primary)}
.title{margin:0 0 8px;font-size:2rem}
.submeta{color:var(--muted);font-size:0.95rem}
/* Article */
#article{font-size:16px;color:#111827}
#article h1,#article h2,#article h3,#article h4{color:#0f172a;margin:1.2rem 0 0.6rem;line-height:1.25;font-weight:700}
#article h1{font-size:2rem;border-bottom:3px solid var(--primary);padding-bottom:12px}
#article p{margin:0 0 1rem;color:#374151}
#article a{color:var(--primary);text-decoration:none}
#article a:hover{text-decoration:underline}
#article img{max-width:100%;height:auto;display:block;margin:16px 0;border-radius:8px;box-shadow:0 6px 18px rgba(2,6,23,0.06)}
#article blockquote{margin:1rem 0;padding:0.8rem 1rem;border-left:4px solid rgba(37,99,235,0.12);background:linear-gradient(180deg, rgba(37,99,235,0.03), rgba(37,99,235,0.01));color:var(--muted);border-radius:8px}
#article code{font-family:var(--mono);background:#0f172a0a;padding:0.15rem 0.35rem;border-radius:6px;font-size:0.95em;color:#111827}
#article pre{background:#0b1220;color:#e6eef8;padding:1rem;border-radius:12px;overflow:auto;margin:1rem 0;font-family:var(--mono);font-size:0.9rem;line-height:1.5}
#article table{width:100%;border-collapse:collapse;margin:1rem 0}
#article th,#article td{padding:0.6rem 0.75rem;border:1px solid #e6e9ef;text-align:left;vertical-align:top}
#article th{background:#f3f4f6;font-weight:600}
#article hr{border:0;height:1px;background:linear-gradient(90deg,transparent,#e6ecff,transparent);margin:1.25rem 0;opacity:0.9}
#article small,#article .meta{color:var(--muted);font-size:0.875rem}
#article .btn{display:inline-block;background:var(--primary);color:#fff;padding:0.5rem 0.9rem;border-radius:8px;text-decoration:none;margin:0.5rem 0}
#article .btn:hover{filter:brightness(.95)}
/* TOC */
.toc{border-left:1px solid #eef2ff;padding-left:16px;margin-left:18px}
.toc a{display:block;color:var(--muted);text-decoration:none;padding:4px 0}
.toc a:hover{color:var(--primary)}
/* Share / actions */
.actions{display:flex;gap:8px;align-items:center}
.action-btn{background:#f3f4f6;border:1px solid #e6e9ef;padding:6px 10px;border-radius:8px;font-size:0.95rem;color:#0f172a;cursor:pointer}
.action-btn:hover{background:#eef2ff}
/* List page */
.list-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
.card{background:#fff;border-radius:12px;padding:16px;box-shadow:0 6px 18px rgba(2,6,23,0.04);border:1px solid #f3f4f6}
.card h3{margin:0 0 8px;font-size:1.125rem}
.card p{margin:0 0 12px;color:#374151}
.excerpt{color:#6b7280;font-size:0.95rem}
.search-row{display:flex;gap:12px;margin-bottom:16px}
.search-input{flex:1;padding:8px 12px;border-radius:8px;border:1px solid #e6e9ef}
/* Responsive */
@media (max-width:640px){
  .container{padding:20px;margin:20px 12px;border-radius:12px}
  .title{font-size:1.5rem}
}