:root {
  --bg: #fbfbf9;
  --ink: #1c1c1c;
  --muted: #6b6b66;
  --link: #0e5a57;
  --rule: #dcdcd6;
  --img1: #c9d3d2;
  --codebg: #f1f1ed;
}

:root[data-theme="dark"] {
  --bg: #161616;
  --ink: #e8e8e4;
  --muted: #9a9a94;
  --link: #6fc3bd;
  --rule: #333;
  --img1: #2c3636;
  --codebg: #1f1f1f;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Roboto, system-ui, sans-serif;
  font-size: 1.05rem;
  line-height: 1.6;
}

main, footer {
  max-width: 40rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

main { padding-top: 4rem; }

h1 { font-size: 2.6rem; line-height: 1.1; margin: 0; font-weight: 700; }

h2 {
  font-size: 1.3rem;
  font-weight: 500;
  margin: 2.5rem 0 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
}

.handle {
  margin: 0.25rem 0 2rem;
  font-family: "Roboto Mono", ui-monospace, monospace;
  color: var(--muted);
}

a { color: var(--link); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--link); outline-offset: 2px; }

/* cards (projects and posts) */
.cards { list-style: none; padding: 0; margin: 0; }

.card {
  display: flex;
  gap: 1.25rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--rule);
  margin: 0;
}
.card:first-child { padding-top: 0; }

.thumb {
  flex: none;
  width: 9rem;
  height: 6rem;
  border-radius: 4px;
  background: var(--img1);
  object-fit: cover;
}
.thumb.sq { width: 5.5rem; height: 5.5rem; }

.body { min-width: 0; }
.date { color: var(--muted); font-size: 0.9rem; margin: 0; }
.author { color: var(--muted); font-size: 0.9rem; margin: 0; }
.title { font-size: 1.2rem; line-height: 1.3; margin: 0.1rem 0 0.3rem; font-weight: 500; overflow-wrap: anywhere; }
.desc { margin: 0; color: var(--muted); font-size: 0.95rem; }
.tag {
  margin: 0.3rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
  font-family: "Roboto Mono", ui-monospace, monospace;
}

/* post page */
.back { margin: 0 0 2rem; }
article h1 { font-size: 2rem; line-height: 1.2; overflow-wrap: anywhere; }
article .date { margin: 0.75rem 0 0; }
article .author { margin: 0.1rem 0 0; }
article .tag { margin: 0.1rem 0 0; }
article .lead { color: var(--muted); font-size: 1.15rem; margin: 1.5rem 0 0; }
article h3 { font-size: 1.2rem; font-weight: 500; margin: 2rem 0 0.25rem; }
article p { margin: 1rem 0 0; }
.banner { display: block; width: 100%; height: auto; border-radius: 4px; margin-top: 1.5rem; }
article img { display: block; max-width: 100%; height: auto; border-radius: 4px; margin: 1.5rem auto 0; }

pre { overflow-x: auto; padding: 1rem; background: var(--codebg); border: 1px solid var(--rule); border-radius: 4px; margin: 1rem 0 0; }
code { font-family: "Roboto Mono", ui-monospace, monospace; font-size: 0.88rem; }
:not(pre) > code {
  background: var(--codebg);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 0.12em 0.4em;
}

/* tables */
table { border-collapse: collapse; width: 100%; margin: 1.25rem 0 0; font-size: 0.95rem; }
th, td { border: 1px solid var(--rule); padding: 0.5rem 0.75rem; text-align: left; }
th { font-weight: 500; background: var(--codebg); }

/* footer */
footer {
  padding-top: 3rem;
  padding-bottom: 3rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 1.1rem;
}
.icon { display: inline-flex; color: var(--muted); }
.icon:hover { color: var(--link); }

#theme-toggle {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: var(--link);
  text-decoration: underline;
  cursor: pointer;
  margin-left: auto;
}

@media (max-width: 520px) {
  main { padding-top: 2.5rem; }
  h1 { font-size: 2.1rem; }
  article h1 { font-size: 1.7rem; }
  .thumb { width: 5.5rem; height: 5.5rem; }
  .card { gap: 0.9rem; }
}