*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg:    #f5f4ef;
  --fg:    #111111;
  --muted: #888880;
  --rule:  #dddbd3;
  --green: #1B4332;   /* Porsche British Green */
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:    #0e0d0a;
    --fg:    #e8e6df;
    --muted: #666660;
    --rule:  #2a2925;
    --green: #52a874;
  }
}

html {
  font-size: 18px;
}

body {
  background-color: var(--bg);
  color: var(--fg);
  font-family: 'Lora', Georgia, serif;
  line-height: 1.7;
  padding: 0 1.5rem;
}

/* ── Layout ── */

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 5.5rem 0 4rem;
}

footer {
  max-width: 640px;
  margin: 0 auto;
  padding-bottom: 3rem;
  color: var(--muted);
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

/* ── Header ── */

h1 {
  font-family: 'Fira Sans', sans-serif;
  font-size: 3.4rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--green);
  margin-bottom: 0.3em;
}

.tagline {
  color: var(--muted);
  font-family: 'Fira Sans', sans-serif;
  font-weight: 400;
  font-size: 0.95rem;
  padding-bottom: 2.5rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--rule);
}

/* ── Body copy ── */

p {
  font-size: 1.05rem;
  margin-bottom: 1.75rem;
}

/* ── Nav ── */

nav {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--rule);
  display: flex;
  gap: 1.75rem;
  flex-wrap: wrap;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  transition: color 0.15s;
}

nav a svg {
  width: 20px;
  height: 20px;
}

nav a:hover {
  color: var(--green);
}

/* ── Post ── */

h2.post-title {
  font-family: 'Fira Sans', sans-serif;
  font-size: 1.8rem;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 0.4em;
}

.post-meta {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--rule);
}

article h2,
article h3,
article h4 {
  font-family: 'Fira Sans', sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

article p {
  margin-bottom: 1.4rem;
}

article a {
  color: var(--green);
}

article ul,
article ol {
  padding-left: 1.4em;
  margin-bottom: 1.4rem;
}

article li {
  margin-bottom: 0.4rem;
  font-size: 1.05rem;
}

article pre,
article code {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.85rem;
  background: var(--rule);
  border-radius: 2px;
}

article code {
  padding: 0.1em 0.3em;
}

article pre {
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin-bottom: 1.4rem;
}

article pre code {
  background: none;
  padding: 0;
}

article blockquote {
  border-left: 2px solid var(--green);
  padding-left: 1.25rem;
  color: var(--muted);
  margin: 0 0 1.4rem;
  font-style: italic;
}

article img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 1.5rem 0;
}

/* ── Archive ── */

.home-link {
  color: inherit;
  text-decoration: none;
}

.home-link:hover {
  color: var(--green);
}

.post-list {
  list-style: none;
  margin-bottom: 3rem;
}

.post-list li {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--rule);
}

.post-date {
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  flex-shrink: 0;
  width: 2.5rem;
}

.post-list a {
  color: var(--fg);
  text-decoration: none;
  font-size: 1rem;
}

.post-list a:hover {
  color: var(--green);
}

/* ── Archive header ── */

.archive-header h1 {
  font-size: 2rem;
}

/* ── Mobile ── */

@media (max-width: 480px) {
  html {
    font-size: 17px;
  }

  h1 {
    font-size: 2.6rem;
  }

  main {
    padding-top: 3.5rem;
  }
}