:root {
  --bg: #fdfdfc;
  --fg: #1a1a1a;
  --muted: #6b6b6b;
  --accent: #0b5fff;
  --rule: #e5e5e0;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181c;
    --fg: #e8e6e3;
    --muted: #9a988f;
    --accent: #7aa2ff;
    --rule: #2c2f36;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0 auto;
  padding: 1.5rem 1.25rem 4rem;
  max-width: 42rem;
  background: var(--bg);
  color: var(--fg);
  font: 1.05rem/1.65 Charter, Georgia, 'Times New Roman', serif;
}
header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--rule);
  font-family: ui-sans-serif, system-ui, sans-serif;
}
.brand { font-weight: 700; font-size: 1.2rem; text-decoration: none; color: var(--fg); }
nav { display: flex; gap: 1rem; }
nav a { color: var(--muted); text-decoration: none; }
nav a:hover { color: var(--fg); }
a { color: var(--accent); }
h1, h2, h3 { line-height: 1.25; font-family: ui-sans-serif, system-ui, sans-serif; }
h1 { font-size: 1.7rem; margin: 0 0 0.25rem; }
.meta, time { color: var(--muted); font-size: 0.9rem; font-family: ui-sans-serif, system-ui, sans-serif; }
.posts { list-style: none; padding: 0; }
.posts li { margin-bottom: 1.75rem; padding-bottom: 1rem; border-bottom: 1px solid var(--rule);}
.posts time { display: block; }
.posts a { font-size: 1.15rem; font-weight: 600; text-decoration: none; }
.posts p { margin: 0.25rem 0 0; color: var(--muted); }
article img { max-width: 100%; }
pre {
  padding: 0.9rem;
  overflow-x: auto;
  background: rgba(125, 125, 125, 0.09);
  border-radius: 6px;
  font-size: 0.85rem;
}
code { font-family: ui-monospace, 'SF Mono', Menlo, monospace; }
blockquote { margin: 0; padding-left: 1rem; border-left: 3px solid var(--rule); color: var(--muted); }
footer {
  margin-top: 4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.85rem;
  font-family: ui-sans-serif, system-ui, sans-serif;
}
footer a { color: var(--muted); }
/* subscribe widget */
.sub { font-family: ui-sans-serif, system-ui, sans-serif; font-size: 0.9rem; }
.sub [hidden] { display: none !important; }
.sub-inline { border-top: 1px ; }
.sub-lead { margin: 0 0 0.5rem; color: var(--muted); }
.sub-form { display: flex; gap: 0.5rem; align-items: center; }
.sub-form input[type='email'] {
  flex: 1;
  max-width: 18rem;
  padding: 0.45rem 0.6rem;
  font: inherit;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 6px;
}
.sub-form button, .sub-cta {
  padding: 0.45rem 1rem;
  font: inherit;
  color: var(--bg);
  background: var(--fg);
  border: none;
  border-radius: 6px;
  cursor: pointer;
  white-space: nowrap;
}
.sub-form button:disabled { opacity: 0.5; cursor: default; }
.sub-hp { position: absolute; left: -9999px; }
.sub-status { margin: 0; color: var(--muted); cursor: pointer; }
.sub-status:hover { color: var(--fg); }
.sub-error { margin: 0.3rem 0 0; color: #c23b3b; }
.sub-card {
  margin: 2.5rem 0;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--rule);
  border-radius: 10px;
  background: rgba(125, 125, 125, 0.06);
}
.sub-title { margin: 0 0 0.2rem; font-weight: 700; font-size: 1.05rem; color: var(--fg); }
.sub-nav { display: flex; align-items: center; }
.sub-nav .sub-cta { padding: 0.3rem 0.8rem; font-size: 0.85rem; }
.sub-nav .sub-form input[type='email'] { width: 11rem; flex: none; padding: 0.3rem 0.5rem; font-size: 0.85rem; }
.sub-nav .sub-form button { padding: 0.3rem 0.8rem; font-size: 0.85rem; }
.sub-nav .sub-status, .sub-nav .sub-error { font-size: 0.85rem; margin: 0 0 0 0.5rem; }

/* support lead form */
.signup { margin-top: 2rem; display: grid; gap: 0.75rem; font-family: ui-sans-serif, system-ui, sans-serif; }
.signup label { display: grid; gap: 0.3rem; font-size: 0.9rem; color: var(--muted); }
.signup input[type='email'], .signup textarea {
  padding: 0.55rem 0.7rem;
  font: inherit;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 6px;
}
.signup button {
  justify-self: start;
  padding: 0.55rem 1.2rem;
  font: inherit;
  color: var(--bg);
  background: var(--fg);
  border: none;
  border-radius: 6px;
  cursor: pointer;
}
.signup button:disabled { opacity: 0.5; cursor: default; }
.form-status { min-height: 1.2em; margin: 0; font-size: 0.9rem; color: var(--muted); }