/* ───────────────────────────────────────────────────────────────────────────
   Tokens follow Fishman's site: 17px root, system sans, white ground,
   near-black text, one warm accent, a 0.5/1/1.5/2/3/4rem spacing scale.
   The anchor markers sit in the left gutter where his numbered counters go.
   --color-primary is the one value that reads as "his". Change it here.
   ─────────────────────────────────────────────────────────────────────────── */

:root {
  /* Sage green taken from the portrait background (#d0d9ce, hue 110), darkened to 5.5:1 contrast on white. */
  --color-primary:        #55704f;
  --color-primary-dark:   #3e573a;
  --color-text:           #1a1a1a;
  --color-text-light:     #4a4a4a;
  --color-text-lighter:   #6a6a6a;
  --color-text-lightest:  #999999;
  --color-bg:             #ffffff;
  --color-bg-light:       #fafafa;
  --color-border:         #e5e5e5;
  --color-border-light:   #f0f0f0;

  /* Open fonts close to the application typography: Crimson Pro for Minion Pro (text),
     Cabin for Gill Sans (headings, navigation). Loaded from Google Fonts in base.html. */
  --font-body: "Crimson Pro", "Minion Pro", Georgia, serif;
  --font-heading: "Cabin", "Gill Sans", "Gill Sans MT", Calibri, sans-serif;
  --font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, monospace;

  --spacing-xs:  0.5rem;
  --spacing-sm:  1rem;
  --spacing-md:  1.5rem;
  --spacing-lg:  2rem;
  --spacing-xl:  3rem;
  --spacing-2xl: 4rem;

  --content-width: 50rem;  /* about 900px, as njw.fish (56rem at 16px) */
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --frame: min(calc(100% - 2 * var(--gutter)), var(--content-width));
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-primary:       #a9bfa3;
    --color-primary-dark:  #c3d4be;
    --color-text:          #e5e5e5;
    --color-text-light:    #b8b8b8;
    --color-text-lighter:  #8a8a8a;
    --color-text-lightest: #666666;
    --color-bg:            #1a1a1a;
    --color-bg-light:      #252525;
    --color-border:        #3a3a3a;
    --color-border-light:  #2f2f2f;
  }
}

[data-theme="dark"] {
  --color-primary:       #a9bfa3;
  --color-primary-dark:  #c3d4be;
  --color-text:          #e5e5e5;
  --color-text-light:    #b8b8b8;
  --color-text-lighter:  #8a8a8a;
  --color-text-lightest: #666666;
  --color-bg:            #1a1a1a;
  --color-bg-light:      #252525;
  --color-border:        #3a3a3a;
  --color-border-light:  #2f2f2f;
}

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

html {
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  letter-spacing: -0.011em;
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

h1 { font-size: 2.25rem; font-weight: 700; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.375rem; }

p { margin-bottom: var(--spacing-md); }

a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 2px;
}
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip { position: absolute; left: -9999px; }
.skip:focus {
  left: var(--gutter); top: 1rem;
  background: var(--color-bg); padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
}

/* ── masthead ─────────────────────────────────────────────────────────────── */

.masthead {
  width: var(--frame);
  margin: 0 auto;
  padding: var(--spacing-md) 0 0.9rem;
  display: flex; flex-wrap: wrap; gap: var(--spacing-xs) var(--spacing-lg);
  align-items: baseline; justify-content: space-between;
  border-bottom: 1px solid var(--color-border);
}

.wordmark {
  font-family: var(--font-heading);
  font-size: 1.3rem;  /* about 23px, as njw.fish */ font-weight: 700;
  letter-spacing: -0.02em; color: var(--color-text);
}
.wordmark:hover { color: var(--color-text); text-decoration: none; }

.masthead nav { display: flex; align-items: baseline; gap: var(--spacing-md); }

.masthead nav a {
  font-family: var(--font-heading);
  font-size: 0.875rem; font-weight: 400; letter-spacing: 0.02em;
  color: var(--color-text-lighter);
}
.masthead nav a:hover { color: var(--color-text); text-decoration: none; }
.masthead nav a[aria-current="page"] { color: var(--color-text); font-weight: 500; }

#theme {
  background: none; border: 0; padding: 0; cursor: pointer;
  font-size: 1rem; line-height: 1; color: var(--color-text-lighter);
}
#theme:hover { color: var(--color-primary); }

/* ── page frame ───────────────────────────────────────────────────────────── */

main {
  width: var(--frame);
  margin: 0 auto;
  padding: var(--spacing-xl) 0 var(--spacing-2xl);
}

.page-head h1 { margin-bottom: var(--spacing-md); text-wrap: balance; }

/* Profile text left, portrait right; the right column is kept even before a portrait exists. */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 13rem;
  gap: var(--spacing-2xl);
  align-items: start;
}
.hero .portrait { align-self: center; }
.hero .section-head { border-bottom: none; padding-bottom: 0; }

.eyebrow {
  font-family: var(--font-heading);
  font-size: 0.8125rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--color-text-lighter);
  margin-bottom: var(--spacing-md);
}

.hero .prose { margin-top: var(--spacing-sm); }
.hero .prose p { font-size: 1rem; line-height: 1.6; color: var(--color-text); margin-bottom: var(--spacing-sm); }
.hero .prose p:last-child { margin-bottom: 0; }

.page-head { margin-bottom: var(--spacing-xl); }
.page-head .lede { font-size: 1.0625rem; color: var(--color-text-light); margin-bottom: 0; }

/* ── portrait ─────────────────────────────────────────────────────────────── */

.portrait {
  display: block;
  width: 100%;
  height: auto;
  margin: 0;
  border-radius: 4px;
  background: var(--color-bg-light);
}

/* ── section headings ─────────────────────────────────────────────────────── */

.selected {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

.section-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: var(--spacing-sm);
  margin: 0;
  padding-bottom: var(--spacing-xs);
  border-bottom: 1px solid var(--color-border-light);
}

.section-head h2, .group > h2 {
  font-size: 1.0625rem; font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin: 0;
}

.more { font-size: 0.8125rem; font-weight: 400; color: var(--color-text-lighter); }
.more:hover { color: var(--color-text); }

.group { margin-bottom: var(--spacing-2xl); }
.group > h2 {
  margin: var(--spacing-lg) 0 var(--spacing-md);
  padding-bottom: var(--spacing-xs);
  border-bottom: 1px solid var(--color-border-light);
}
.group-blurb {
  font-size: 0.9375rem; color: var(--color-text-lighter);
  margin-bottom: var(--spacing-md); max-width: 62ch;
}

/* ── anchor markers (unused on lists; kept for possible inline use) ─────── */

.marker { display: none; }

/* ── work items ───────────────────────────────────────────────────────────── */

.papers, .talks, .notes { list-style: none; padding: 0; margin: 0; }

.paper, .talk, .note-item {
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-border-light);
}
.papers > li:first-child, .talks > li:first-child, .notes > li:first-child { padding-top: 0.35rem; }
.paper h3, .talk h3, .note-item h3 {
  font-family: var(--font-body); font-size: 1.15rem;
  font-size: 0.9375rem; font-weight: 500;
  line-height: 1.5; letter-spacing: -0.011em;
  margin-bottom: 0.15rem;
  text-wrap: pretty;
}
.paper h3 a, .note-item h3 a { color: var(--color-text); font-weight: 500; }
.paper h3 a:hover, .note-item h3 a:hover {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 1.5px; text-underline-offset: 2px;
}

.byline { font-size: 0.875rem; color: var(--color-text-light); margin-bottom: 0.15rem; }
.blurb  { font-size: 0.875rem; color: var(--color-text-light); margin-bottom: 0.15rem; }
.note   { font-size: 0.875rem; color: var(--color-text-lighter); margin: 0.3rem 0 0; }

.meta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem;
  font-size: 0.8125rem; color: var(--color-text-lighter);
  margin-bottom: 0;
}
.meta > * + *::before { content: "·"; margin-right: 0.5rem; color: var(--color-text-lightest); }

.meta .status {
  font-size: 0.8125rem; font-weight: 500;
  color: var(--color-primary);
  background: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  border-radius: 3px;
  padding: 0.1em 0.5em;
}
.meta .status::before { display: none; }

.resources {
  display: flex; flex-wrap: wrap; gap: var(--spacing-xs);
  margin: 0.35rem 0 0;
}
.resources a {
  font-size: 0.75rem; font-weight: 500;
  color: var(--color-text-light);
  padding: 0.2em 0.5em; margin-left: -0.5em;
  border-radius: 3px;
}
.resources a:hover {
  color: var(--color-primary);
  background: var(--color-bg-light);
  text-decoration: none;
}

.empty { color: var(--color-text-lighter); font-style: italic; }

/* ── prose ────────────────────────────────────────────────────────────────── */

.prose { font-size: 1.0625rem; line-height: 1.75; }
.prose > :last-child { margin-bottom: 0; }
.prose h2 { font-size: 1.75rem; margin: var(--spacing-xl) 0 var(--spacing-md); }
.prose h3 { font-size: 1.375rem; margin: var(--spacing-lg) 0 var(--spacing-sm); }
.prose ul, .prose ol { margin: 0 0 var(--spacing-md) var(--spacing-lg); }
.prose li { margin-bottom: var(--spacing-xs); }
.prose blockquote {
  margin: var(--spacing-lg) 0; padding-left: var(--spacing-md);
  border-left: 3px solid var(--color-border); color: var(--color-text-light);
}
.prose code {
  font-family: var(--font-mono); font-size: 0.9em;
  background: var(--color-bg-light);
  border: 1px solid var(--color-border-light); border-radius: 4px;
  padding: 0.2em 0.5em; color: var(--color-primary);
}
.prose pre {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border-light); border-radius: 8px;
  padding: var(--spacing-md); margin-bottom: var(--spacing-lg);
  overflow-x: auto; font-size: 0.9375rem; line-height: 1.6;
}
.prose pre code { background: none; border: 0; padding: 0; color: var(--color-text); }
.prose table { width: 100%; border-collapse: collapse; margin: var(--spacing-lg) 0; font-size: 0.9375rem; }
.prose th, .prose td { text-align: left; padding: 0.5rem 0.75rem; border-bottom: 1px solid var(--color-border-light); }
.prose th { font-weight: 600; }
.prose img { max-width: 100%; height: auto; border-radius: 4px; }
.prose .footnote { font-size: 0.9375rem; color: var(--color-text-lighter); border-top: 1px solid var(--color-border-light); margin-top: var(--spacing-2xl); padding-top: var(--spacing-md); }

.single .back { margin-top: var(--spacing-2xl); font-size: 0.9375rem; }

/* ── footer ───────────────────────────────────────────────────────────────── */

footer {
  width: var(--frame);
  margin: 0 auto;
  padding: var(--spacing-sm) 0 var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

.contact {
  display: flex; flex-wrap: wrap; gap: var(--spacing-md);
  list-style: none; margin-bottom: 0;
  font-size: 0.8125rem;
}
.contact a { color: var(--color-text-light); font-weight: 400; }
.contact a:hover { color: var(--color-text); text-decoration: underline; text-underline-offset: 3px; }

.colophon { font-size: 0.8125rem; color: var(--color-text-lightest); margin: var(--spacing-xs) 0 0; }

/* ── narrow ───────────────────────────────────────────────────────────────── */

@media (max-width: 48rem) {
  html { font-size: 16px; }
  h1 { font-size: 1.875rem; }
  .hero { grid-template-columns: 1fr; gap: var(--spacing-lg); }
  .hero .portrait { order: -1; max-width: 160px; }
  .portrait-slot { display: none; }
  main { padding-top: var(--spacing-xl); }
}

/* ── publication row: title left, year at the end of the line (as on njw.fish) ── */
.paper-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 2rem;
}
.paper-head h3 { margin: 0; }
.paper-head .year {
  flex: 0 0 auto;
  font-size: 0.85rem; color: var(--color-text-lightest);
  font-variant-numeric: tabular-nums;
}