/* ===== shared theme: homepage + blog ===== */
:root {
  --bg: #0e1116;
  --panel: #151a21;
  --line: #222a35;
  --fg: #d7dde6;
  --muted: #8a94a3;
  --accent: #4aa3ff;
  --maxw: 680px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-weight: 300;
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  display: flex;
  justify-content: center;
  padding: 48px 20px 80px;
}
.wrap {
  width: 100%;
  max-width: var(--maxw);
}
a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s;
}
a:hover {
  border-color: var(--accent);
}

/* header */
.top {
  margin-bottom: 8px;
}
h1 {
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 2px;
  letter-spacing: -0.3px;
}
.role {
  color: var(--muted);
  font-size: 13.5px;
  margin: 0;
}
.role .accent {
  color: var(--accent);
}

/* nav */
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 13.5px;
  margin: 18px 0 30px;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
nav a {
  color: var(--fg);
}
nav a::before {
  content: "→ ";
  color: var(--accent);
}

/* sections */
section {
  margin-bottom: 30px;
}
h2 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  font-weight: 500;
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
h2::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}
p {
  margin: 0 0 10px;
}
.muted {
  color: var(--muted);
}

/* experience entries */
.entry {
  margin-bottom: 14px;
}
.entry .head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.entry .what {
  font-weight: 500;
  color: var(--fg);
}
.entry .when {
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
}
.entry .sub {
  color: var(--muted);
  font-size: 13.5px;
}

/* publications */
ul.pubs {
  list-style: none;
  margin: 0;
  padding: 0;
}
ul.pubs li {
  padding-left: 18px;
  position: relative;
  margin-bottom: 10px;
}
ul.pubs li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--accent);
}
ul.pubs .venue {
  color: var(--muted);
  font-size: 13px;
}

/* skills */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.tag {
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  padding: 3px 9px;
  border-radius: 6px;
  font-size: 12.5px;
}

footer {
  color: var(--muted);
  font-size: 12.5px;
  margin-top: 40px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

/* ===== blog listing ===== */
.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.post-list li {
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.post-list a.title {
  font-size: 16px;
  font-weight: 500;
  color: var(--fg);
}
.post-list .meta {
  color: var(--muted);
  font-size: 12.5px;
  margin-top: 4px;
}
.post-list .excerpt {
  color: var(--muted);
  font-size: 13.5px;
  margin-top: 6px;
}

/* ===== post body ===== */
.post h1 {
  font-size: 22px;
  margin-bottom: 6px;
}
.post .meta {
  color: var(--muted);
  font-size: 12.5px;
  margin-bottom: 26px;
}
.post h3 {
  font-size: 14px;
  color: var(--fg);
  font-weight: 500;
  margin: 26px 0 8px;
  letter-spacing: 0.2px;
}
.post h3 .n {
  color: var(--accent);
  margin-right: 8px;
}
.post p {
  margin: 0 0 12px;
}
.post figure {
  margin: 22px 0;
  text-align: center;
}
.post figure img {
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.post figcaption {
  color: var(--muted);
  font-size: 12px;
  margin-top: 8px;
}
.post .katex {
  font-size: 1.02em;
}
.post .katex-display {
  margin: 14px 0;
  overflow-x: auto;
  overflow-y: hidden;
}
.post table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin: 14px 0;
}
.post th,
.post td {
  text-align: left;
  padding: 7px 10px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.post th {
  color: var(--accent);
  font-weight: 500;
}
.post td:first-child {
  color: var(--fg);
  white-space: nowrap;
}
.post td {
  color: var(--muted);
}
.callout {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 12px 16px;
  margin: 18px 0;
}

@media (max-width: 520px) {
  nav {
    gap: 12px;
  }
  .entry .head {
    gap: 4px;
  }
}