:root {
  --bg: #fafaf7;
  --fg: #1a1a1a;
  --muted: #666;
  --line: #e3e3df;
  --accent: #b03030;
  --card: #fff;
}
* { box-sizing: border-box; }
html { color-scheme: light; }
body {
  margin: 0;
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, system-ui, sans-serif;
  background: var(--bg);
  color: var(--fg);
}
main {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}
.intro h1 { margin: 0 0 .25rem; font-size: 2rem; letter-spacing: -0.02em; }
.intro p  { margin: 0 0 1.5rem; color: var(--muted); }
.crumb a { color: var(--muted); text-decoration: none; }
.crumb a:hover { text-decoration: underline; }

form.submit { margin: 0 0 2rem; }
form.submit label { display: block; font-size: .85rem; color: var(--muted); margin-bottom: .35rem; }
form.submit .row { display: flex; gap: .5rem; }
form.submit input {
  flex: 1; min-width: 0; padding: .65rem .8rem; font: inherit;
  border: 1px solid var(--line); border-radius: 6px; background: #fff;
}
form.submit input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
button {
  font: inherit; padding: .65rem 1.1rem; border-radius: 6px; border: 0;
  background: var(--accent); color: #fff; cursor: pointer;
}
button.ghost { background: transparent; color: var(--fg); border: 1px solid var(--line); }
button:hover { filter: brightness(0.95); }
form.confirm { display: inline-block; margin: 0 .25rem 0 0; }

section#feed { display: grid; gap: 1rem; }
a.card {
  display: block; padding: 1rem 1.1rem; background: var(--card);
  border: 1px solid var(--line); border-radius: 8px;
  text-decoration: none; color: inherit; transition: border-color .15s;
}
a.card:hover { border-color: #c8c8c2; }
a.card h3 { margin: 0 0 .25rem; font-size: 1.05rem; line-height: 1.35; }
.meta { margin: 0 0 .4rem; font-size: .8rem; color: var(--muted); }
.excerpt { margin: 0; color: #333; font-size: .92rem; }

.preview { background: #fff; padding: 1.25rem; border: 1px solid var(--line); border-radius: 8px; margin-bottom: 1rem; }
.preview h2 { margin: 0 0 .35rem; font-size: 1.3rem; }
.preview .src { margin: 0 0 1rem; font-size: .85rem; color: var(--muted); }
.preview .src a { color: var(--muted); }
.preview .excerpt { white-space: pre-wrap; color: #333; max-height: 24em; overflow: auto; }

.reflection { background: #fff; padding: 1.5rem; border: 1px solid var(--line); border-radius: 8px; }
.reflection h2, .reflection h3, .reflection h4 { margin: 1.2em 0 .4em; }
.reflection p { margin: 0 0 .9em; }
.reflection ul { margin: 0 0 1em 1.2em; padding: 0; }
.reflection code { background: #f1efe9; padding: .1em .3em; border-radius: 3px; font-size: .9em; }

.err   { color: var(--accent); }
.empty { color: var(--muted); font-style: italic; }
.end   { text-align: center; color: var(--muted); font-size: .85rem; margin: 2rem 0 0; }

footer { text-align: center; padding: 2rem 1rem; color: var(--muted); font-size: .85rem; }
footer a { color: var(--muted); }