/* davepaola.com — Editorial direction (theme/editorial-v1)
   Direction A from DPC-1 with lightest C-elements folded in.
   Lineage: Sivers + Gwern + Robin Sloan + Maggie Appleton (light).
   Font: native Charter on macOS, Iowan Old Style on iOS, Georgia as
   universal fallback. Zero webfont download.
*/

:root {
  --color-text: #161616;
  --color-text-soft: #444;
  --color-muted: #7a7a7a;
  --color-rule: #e6e0d8;
  --color-rule-soft: #f0eae0;
  --color-accent: #a8472f;        /* burnt-brick / Pittsburgh warehouse */
  --color-accent-hover: #7a3220;
  --color-bg: #fbfaf6;            /* warm off-white, not stark */
  --color-code-bg: #f1ece1;
  --width-content: 760px;
  --width-header: 1100px;

  --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-serif: "Charter", "Iowan Old Style", "Source Serif Pro", Georgia, "Palatino Linotype", serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-serif);
  font-size: 19px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: rgba(168, 71, 47, 0.35);
  transition: color 100ms ease, text-decoration-color 100ms ease;
}
a:hover {
  color: var(--color-accent-hover);
  text-decoration-color: var(--color-accent-hover);
}

/* --- Header: full-width, asymmetric --- */

header {
  border-bottom: 1px solid var(--color-rule);
  background: var(--color-bg);
}

header nav {
  max-width: var(--width-header);
  margin: 0 auto;
  padding: 1.4rem 2rem;
  display: flex;
  align-items: baseline;
  gap: 1rem;
}

header .site-title {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--color-text);
  text-decoration: none;
  margin-right: auto;
}
header .site-title:hover {
  color: var(--color-accent);
}

header ul {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.25rem 1.4rem;
  font-family: var(--font-system);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

header ul a {
  color: var(--color-text-soft);
  text-decoration: none;
}
header ul a:hover {
  color: var(--color-accent);
}

/* --- Main content well --- */

main {
  max-width: var(--width-content);
  margin: 3rem auto 5rem;
  padding: 0 2rem;
}

/* --- Headings: serif throughout (editorial feel) --- */

main h1,
main h2,
main h3,
main h4 {
  font-family: var(--font-serif);
  color: var(--color-text);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-top: 2.5rem;
  margin-bottom: 0.6rem;
}
main h1 {
  font-size: 2.1rem;
  font-weight: 700;
  margin-top: 0.5rem;
  line-height: 1.15;
}
main h2 {
  font-size: 1.5rem;
  font-weight: 700;
}
main h3 {
  font-size: 1.2rem;
  font-weight: 700;
}
main h4 {
  font-size: 1.05rem;
  font-weight: 700;
}

main p {
  margin: 0.9rem 0;
  color: var(--color-text);
}

/* --- Byline & meta: small, sans, gray --- */

.byline,
.meta {
  font-family: var(--font-system);
  font-size: 13px;
  color: var(--color-muted);
  margin-top: 0.25rem;
  letter-spacing: 0.02em;
}

.meta a {
  color: var(--color-muted);
  text-decoration: underline;
  text-decoration-color: var(--color-rule);
}
.meta a:hover {
  color: var(--color-accent);
  text-decoration-color: var(--color-accent);
}

/* The "← Writing" / "← Portfolio" backlinks atop detail pages */
article > .meta:first-child {
  margin-bottom: 1.5rem;
  font-size: 13px;
}

/* --- Listings (entry-list) --- */

.entry-list {
  list-style: none;
  padding: 0;
  margin: 2rem 0;
}

.entry-list li {
  margin-bottom: 1.75rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-rule-soft);
}
.entry-list li:last-child {
  border-bottom: none;
}

.entry-list .entry-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  display: block;
  margin-bottom: 0.3rem;
  color: var(--color-accent);
  text-decoration: none;
}
.entry-list .entry-title:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

/* --- Footer --- */

footer {
  max-width: var(--width-header);
  margin: 3rem auto 2rem;
  padding: 1.5rem 2rem;
  border-top: 1px solid var(--color-rule);
  font-family: var(--font-system);
  font-size: 13px;
  color: var(--color-muted);
}

footer a {
  color: var(--color-muted);
  text-decoration: underline;
  text-decoration-color: var(--color-rule);
}
footer a:hover {
  color: var(--color-accent);
  text-decoration-color: var(--color-accent);
}

/* --- Article body elements --- */

img {
  max-width: 100%;
  height: auto;
}

ul,
ol {
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.4rem;
}

blockquote {
  border-left: 3px solid var(--color-accent);
  margin: 1.25rem 0 1.25rem 0;
  padding: 0.1rem 0 0.1rem 1.1rem;
  color: var(--color-text-soft);
  font-style: italic;
}

code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--color-code-bg);
  padding: 0.1em 0.35em;
  border-radius: 3px;
}

pre code {
  display: block;
  padding: 1rem;
  overflow-x: auto;
  background: var(--color-code-bg);
  border-radius: 4px;
  font-size: 0.85em;
  line-height: 1.5;
}

hr {
  border: none;
  border-top: 1px solid var(--color-rule);
  margin: 2.5rem 0;
}

/* Tables (used in some essays + the home page tables) */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.95em;
}
th, td {
  text-align: left;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--color-rule);
}
th {
  font-family: var(--font-system);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted);
  font-weight: 600;
}

/* --- Marginalia gutter (light C-element from DPC-3) --- */

.article-with-gutter {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 1.75rem;
  align-items: start;
}

.gutter {
  font-family: var(--font-system);
  font-size: 12px;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  line-height: 1.4;
  text-align: right;
  padding-top: 1rem;
  font-feature-settings: "tnum";
}

.entry-list.with-gutter {
  margin-top: 2rem;
}

.entry-list.with-gutter li {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 1.75rem;
  align-items: start;
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--color-rule-soft);
}
.entry-list.with-gutter li:last-child {
  border-bottom: none;
}

.entry-list.with-gutter .entry-date {
  font-family: var(--font-system);
  font-size: 12px;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-align: right;
  padding-top: 0.4rem;
  font-feature-settings: "tnum";
  line-height: 1.4;
}

.entry-list.with-gutter .entry-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  display: block;
  color: var(--color-accent);
  text-decoration: none;
  margin: 0;
  line-height: 1.25;
}
.entry-list.with-gutter .entry-title:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

.entry-list.with-gutter .entry-summary {
  margin-top: 0.3rem;
  font-size: 0.95em;
  color: var(--color-text-soft);
  line-height: 1.45;
}

.entry-list.with-gutter .entry-meta {
  margin-top: 0.3rem;
  font-family: var(--font-system);
  font-size: 12px;
  color: var(--color-muted);
  letter-spacing: 0.02em;
}

@media (max-width: 700px) {
  .article-with-gutter,
  .entry-list.with-gutter li {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }
  .gutter,
  .entry-list.with-gutter .entry-date {
    text-align: left;
    padding-top: 0;
  }
}

/* --- Responsive --- */

@media (max-width: 600px) {
  body { font-size: 17px; }
  main { padding: 0 1.25rem; margin: 2rem auto 4rem; }
  header nav { padding: 1.1rem 1.25rem; }
  footer { padding: 1.25rem 1.25rem; }
  main h1 { font-size: 1.7rem; }
  header .site-title { font-size: 19px; }
  header ul { font-size: 11px; gap: 0.25rem 1rem; }
}