@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg: #0b0d10;
  --panel: #111419;
  --panel2: #151920;
  --text: #e7e9ec;
  --muted: #8d949e;
  --line: #272c34;
  --accent: #d7ff4f;
  --accent2: #a8d42d;
  --max: 1080px;
}
[data-theme="light"] {
  --bg: #f5f6f7;
  --panel: #fff;
  --panel2: #eef0f2;
  --text: #17191d;
  --muted: #626a74;
  --line: #dfe3e7;
  --accent: #587800;
  --accent2: #466300;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
  line-height: 1.75;
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
.sidebar {
  position: fixed; left: 0; top: 0; bottom: 0; width: 270px;
  padding: 42px 30px 28px; border-right: 1px solid var(--line);
  background: var(--bg); display: flex; flex-direction: column; z-index: 20;
}
.brand img { width: 72px; height: 72px; border-radius: 14px; margin-bottom: 22px; }
.brand > a { display: block; font: 600 21px "IBM Plex Mono", monospace; }
.brand p { color: var(--muted); font-size: 13px; line-height: 1.5; margin: 8px 0 0; }
nav { margin-top: 52px; display: grid; gap: 5px; }
nav a {
  padding: 9px 10px; color: var(--muted); border-radius: 7px;
  font: 500 14px "IBM Plex Mono", monospace;
}
nav a:hover { background: var(--panel); color: var(--text); }
nav span { margin-left: 8px; }
.sidebar-bottom { margin-top: auto; display: flex; gap: 12px; flex-wrap: wrap; color: var(--muted); font: 12px "IBM Plex Mono", monospace; }
.sidebar-bottom button { border: 0; background: none; color: var(--muted); cursor: pointer; font: inherit; }
.content { margin-left: 270px; max-width: calc(var(--max) + 80px); padding: 65px 60px 20px; min-height: 100vh; }
.hero { max-width: 780px; padding: 55px 0 70px; }
.hero-kicker, .eyebrow { color: var(--accent); font: 600 12px "IBM Plex Mono", monospace; letter-spacing: .08em; }
.hero h1 { font-size: clamp(44px, 7vw, 76px); line-height: 1.02; letter-spacing: -.055em; margin: 18px 0 25px; }
.hero h1 span { color: var(--muted); }
.hero p { max-width: 650px; color: var(--muted); font-size: 18px; }
.hero-links { display: flex; gap: 10px; margin-top: 30px; }
.button { background: var(--accent); color: #10120b; padding: 10px 16px; border-radius: 6px; font: 600 13px "IBM Plex Mono", monospace; }
.button.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.section { margin: 30px 0 70px; }
.section-heading { display:flex; align-items:center; justify-content:space-between; border-bottom:1px solid var(--line); margin-bottom: 8px; }
.section-heading h2 { font-size: 18px; margin: 0 0 12px; }
.section-heading a { color: var(--muted); font: 12px "IBM Plex Mono", monospace; }
.post-card { padding: 25px 0; border-bottom: 1px solid var(--line); }
.post-card h3 { font-size: 23px; line-height: 1.3; margin: 6px 0; }
.post-card p { color: var(--muted); margin: 4px 0 10px; }
.post-meta { color: var(--muted); font: 11px "IBM Plex Mono", monospace; text-transform: uppercase; letter-spacing: .04em; }
.tags, .post-tags { display:flex; flex-wrap:wrap; gap: 8px; }
.tags span, .post-tags span {
  color: var(--muted); font: 11px "IBM Plex Mono", monospace;
  border:1px solid var(--line); padding: 3px 7px; border-radius: 4px;
}
.topic-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:10px; }
.topic-grid a, .research-card { border:1px solid var(--line); background:var(--panel); padding:20px; border-radius:7px; font: 500 13px "IBM Plex Mono", monospace; }
.topic-grid a:hover, .research-card:hover { border-color: var(--accent); }
.page-header { padding: 40px 0 35px; border-bottom:1px solid var(--line); margin-bottom: 40px; }
.page-header h1, .post-header h1 { font-size: clamp(38px, 6vw, 60px); line-height:1.05; letter-spacing:-.045em; margin: 10px 0; }
.page-header p, .lead { color:var(--muted); font-size:17px; max-width:720px; }
.prose, .post-body { max-width: 800px; }
.prose h2, .post-body h2 { margin-top: 45px; line-height:1.2; }
.prose h3, .post-body h3 { margin-top: 32px; }
.prose a, .post-body a { color:var(--accent); }
pre {
  background:#080a0d; border:1px solid var(--line); border-radius:7px;
  padding:18px; overflow:auto; font:13px/1.6 "IBM Plex Mono", monospace;
}
code { font-family:"IBM Plex Mono", monospace; font-size:.9em; }
:not(pre) > code { background:var(--panel2); padding:2px 5px; border-radius:4px; }
blockquote { border-left:3px solid var(--accent); margin:25px 0; padding:2px 20px; color:var(--muted); }
.note { border:1px solid var(--line); background:var(--panel); padding:14px 17px; border-radius:7px; color:var(--muted); font-size:13px; }
.post-header { padding: 30px 0 35px; border-bottom:1px solid var(--line); margin-bottom:40px; }
.post-body img { max-width:100%; border-radius:7px; }
.post-tags { margin-top:45px; padding-top:20px; border-top:1px solid var(--line); }
.archive-list { display:grid; }
.archive-list a { display:grid; grid-template-columns:130px 1fr; gap:20px; padding:15px 0; border-bottom:1px solid var(--line); }
.archive-list span { color:var(--muted); font:12px "IBM Plex Mono",monospace; }
.tag-cloud { display:flex; flex-wrap:wrap; gap:8px; margin-bottom:50px; }
.tag-cloud a { border:1px solid var(--line); padding:8px 11px; border-radius:5px; font:12px "IBM Plex Mono",monospace; }
.research-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:12px; }
.research-card { display:block; }
.research-card span { color:var(--accent); font-size:11px; }
.research-card h3 { font:600 18px Inter,sans-serif; margin:7px 0; }
.research-card p { color:var(--muted); font:13px Inter,sans-serif; }
footer { border-top:1px solid var(--line); margin-top:100px; padding:25px 0; display:flex; justify-content:space-between; color:var(--muted); font:11px "IBM Plex Mono",monospace; }
.mobile-menu { display:none; }
@media (max-width: 800px) {
  .sidebar { transform:translateX(-100%); transition:.2s; box-shadow:20px 0 60px #0006; }
  .sidebar.open { transform:translateX(0); }
  .mobile-menu { display:block; position:fixed; top:15px; right:15px; z-index:30; border:1px solid var(--line); background:var(--panel); color:var(--text); border-radius:6px; padding:8px 10px; }
  .content { margin-left:0; padding:55px 22px 10px; }
  .hero { padding-top:35px; }
  .topic-grid, .research-grid { grid-template-columns:1fr; }
  .archive-list a { grid-template-columns:95px 1fr; }
}


.category-list { display:grid; gap:8px; max-width:760px; }
.category-list a {
  display:grid; grid-template-columns:50px 1fr; align-items:center;
  padding:16px 18px; border:1px solid var(--line); background:var(--panel);
  border-radius:7px; transition:.15s;
}
.category-list a:hover { border-color:var(--accent); transform:translateX(3px); }
.category-list span { color:var(--accent); font:12px "IBM Plex Mono",monospace; }
.category-list strong { font:600 15px Inter,sans-serif; }