/* adamwhansen.com — one stylesheet, no framework, self-hosted type (Newsreader, OFL). */

@font-face {
  font-family: "Newsreader";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("../fonts/newsreader-latin.woff2") format("woff2");
}
@font-face {
  font-family: "Newsreader";
  font-style: italic;
  font-weight: 400 700;
  font-display: swap;
  src: url("../fonts/newsreader-italic-latin.woff2") format("woff2");
}

/* Palette: oxblood and ochre on warm limestone. Chart colors validated for color-vision
   deficiency and contrast in both modes. */
:root {
  --paper: #f6f1e8;
  --paper-2: #ede5d7;
  --ink: #1f1a17;
  --ink-2: #4a423b;
  --ink-3: #675e55;
  --rule: #e0d7c8;
  --rule-strong: #cabda8;
  --accent: #8e2c38;
  --accent-ink: #7a2430;
  --ochre: #b07a22;
  --sea: #1f6aa5;

  /* The dark band ("What I think") */
  --band-bg: #221a19;
  --band-ink: #f3ece2;
  --band-ink-2: #c9bfb2;
  --band-rule: #3b302d;
  --band-accent: #e89aa2;
  --band-ochre: #d9a54a;

  --serif: "Newsreader", Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --measure: 41rem;
  --gutter: clamp(1.25rem, 5vw, 2rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #15110f;
    --paper-2: #1e1916;
    --ink: #efe8dd;
    --ink-2: #cfc6b9;
    --ink-3: #a89f93;
    --rule: #2f2823;
    --rule-strong: #4a4038;
    --accent: #d2606e;
    --accent-ink: #e2808c;
    --ochre: #b48a1e;
    --sea: #4a8fd4;

    --band-bg: #2a1f1d;
    --band-ink: #f3ece2;
    --band-ink-2: #c9bfb2;
    --band-rule: #43363a;
    --band-accent: #e89aa2;
    --band-ochre: #d9a54a;
  }
  body { -webkit-font-smoothing: antialiased; }
}

/* Traditional Chinese pages (/zh-tw/): Newsreader still sets Latin letters and numbers; Chinese
   falls through to the reader's own system fonts, so no Chinese web font is downloaded. */
html[lang="zh-Hant-TW"] {
  --serif: "Newsreader", "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  --serif-display: "Newsreader", "Songti TC", "Noto Serif TC", "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", serif;
  --sans: system-ui, -apple-system, "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}
html[lang="zh-Hant-TW"] body { line-height: 1.75; }
html[lang="zh-Hant-TW"] .lede { line-height: 1.7; }
html[lang="zh-Hant-TW"] :is(h1, h2, h3, .take-claim, .site-header .home) {
  font-family: var(--serif-display);
  letter-spacing: 0.01em;
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  overflow-x: clip;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(1.0625rem, 0.98rem + 0.4vw, 1.25rem);
  line-height: 1.58;
  font-kerning: normal;
  text-rendering: optimizeLegibility;
}

::selection { background: color-mix(in srgb, var(--accent) 22%, transparent); }

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

a {
  color: inherit;
  text-decoration-line: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}
a:hover { color: var(--accent-ink); text-decoration-thickness: 2px; }
a:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

strong { font-weight: 650; }

.wrap {
  max-width: calc(var(--measure) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip {
  position: absolute;
  left: var(--gutter);
  top: -3rem;
  padding: 0.5rem 0.75rem;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 0.875rem;
  z-index: 10;
}
.skip:focus { top: 0.75rem; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- Header and footer ---------- */

.site-header {
  padding-block: 1.25rem 0;
  font-family: var(--sans);
  font-size: 0.9375rem;
}
.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
}
.site-header .home {
  font-family: var(--serif);
  font-size: 1.125rem;
  font-weight: 600;
  text-decoration: none;
}
.site-header ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-header nav a {
  color: var(--ink-2);
  text-decoration: none;
}
.site-header nav a:hover,
.site-header nav a[aria-current="page"] {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--accent);
}
/* Link to the other language version: after the menu, set apart by a thin rule on wide screens;
   beside the name on phones, so the menu below it doesn't wrap. */
.site-header nav { margin-left: auto; }
.site-header .lang-switch {
  padding-left: 1.25rem;
  border-left: 1px solid var(--rule-strong);
  color: var(--ink-2);
  text-decoration: none;
}
.site-header .lang-switch:hover {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--accent);
}
@media (max-width: 45.99rem) {
  .site-header .lang-switch { order: 2; margin-left: auto; padding-left: 0; border-left: 0; }
  .site-header nav { order: 3; flex-basis: 100%; margin-left: 0; }
}

.site-footer {
  margin-top: 1rem;
  padding-bottom: 3rem;
  font-family: var(--sans);
  font-size: 0.8125rem;
  color: var(--ink-3);
}
.site-footer .wrap > * { max-width: var(--measure); }
.site-footer .footer-links {
  padding-top: 2rem;
  border-top: 1px solid var(--rule);
}
.site-footer p { margin: 0.75rem 0 0; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer-links a { color: var(--ink-2); }

/* ---------- Type ---------- */

h1, h2, h3 {
  font-family: var(--serif);
  color: var(--ink);
  text-wrap: balance;
}
h1 {
  margin: 0;
  font-size: clamp(2.6rem, 1.6rem + 4.2vw, 4.25rem);
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: -0.02em;
}
h2 {
  margin: 0 0 1.4rem;
  font-size: clamp(1.6rem, 1.3rem + 1.1vw, 2.05rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.012em;
}
/* A short oxblood rule above each section heading */
h2::before {
  content: "";
  display: block;
  width: 2.25rem;
  height: 3px;
  margin-bottom: 1rem;
  background: var(--accent);
}
h2.visually-hidden::before { display: none; }
h3 {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.3;
}

p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }

.meta {
  font-family: var(--sans);
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--ink-3);
}

/* Citation links: small, labeled pointers to an external source. */
.cites { white-space: normal; }
.cite {
  display: inline-block;
  margin: 0 0 0 0.3em;
  padding: 0.05em 0.4em 0.1em;
  border: 1px solid var(--rule-strong);
  border-radius: 3px;
  font-family: var(--sans);
  font-size: 0.6875rem;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--ink-2);
  text-decoration: none;
  vertical-align: 0.12em;
  white-space: nowrap;
}
.cite:hover {
  border-color: var(--accent);
  color: var(--accent-ink);
}

/* ---------- Page sections ---------- */

.section {
  padding-block: 3.25rem;
  border-top: 1px solid var(--rule);
}
.section:first-child { border-top: 0; }

.page-head { padding-block: clamp(2.25rem, 6vw, 3.75rem) 0.5rem; }
.page-head h1 { font-size: clamp(2.2rem, 1.7rem + 2.2vw, 3rem); }
.page-head p { margin-top: 1rem; color: var(--ink-2); }

/* Hero */
.hero { padding-block: clamp(2.25rem, 7vw, 4.5rem) 3rem; }
/* Portrait set into the intro, magazine-style: small on phones, larger on wide screens. */
.hero-photo {
  display: block;
  float: right;
  width: 6.25rem;
  margin: 0.3rem 0 0.75rem 1.1rem;
}
.hero-photo img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
  background: var(--paper-2);
}
.hero .role {
  margin: 0.85rem 0 1.9rem;
  font-family: var(--sans);
  font-size: 0.8125rem;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-2);
}
.lede {
  font-size: 1.2em;
  line-height: 1.5;
}
.lede p { margin-bottom: 0.9rem; }

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.4rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--sans);
  font-size: 0.9375rem;
}

/* "Record": short facts, each with its source */
.record {
  clear: both;
  margin: 2.5rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--ink);
}
.record li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--rule);
  font-size: 1rem;
  line-height: 1.45;
}
.record li:last-child { border-bottom: 0; padding-bottom: 0; }

/* Arc: the progression of work */
.arc {
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}
.arc > li {
  position: relative;
  padding: 0 0 2.25rem 1.6rem;
  border-left: 1px solid var(--rule-strong);
}
.arc > li:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}
.arc > li::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 0.32em;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  background: var(--paper);
}
.arc > li:last-child::before { background: var(--accent); }
.arc .meta { margin: 0 0 0.2rem; }
.arc h3 { margin-bottom: 0.35rem; }
.arc p { margin-bottom: 0.4rem; }

/* Plain bulleted lists inside prose */
.prose ul {
  margin: 0 0 1rem;
  padding-left: 1.1rem;
}
.prose li { margin-bottom: 0.45rem; }
.prose li::marker { color: var(--accent); }

/* ---------- "What I think": a full-width dark band ---------- */

.band {
  margin-inline: calc(50% - 50vw);
  padding: 4rem calc(50vw - 50%);
  border-top: 0;
  background: var(--band-bg);
  color: var(--band-ink);
}
.band h2 { color: var(--band-ink); }
.band h2::before { background: var(--band-ochre); }
.band a { text-decoration-color: var(--band-accent); }
.band a:hover { color: var(--band-ink); }
.band .cite { border-color: var(--band-rule); color: var(--band-ink-2); }
.band .cite:hover { border-color: var(--band-ochre); color: var(--band-ink); }

.takes {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: take;
}
.takes > li {
  position: relative;
  padding: 1.75rem 0 1.75rem 3rem;
  border-top: 1px solid var(--band-rule);
  counter-increment: take;
}
.takes > li:last-child { padding-bottom: 0.25rem; }
.takes > li::before {
  content: counter(take, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2.05rem;
  font-family: var(--sans);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--band-ochre);
}
.take-claim {
  margin: 0 0 0.65rem;
  font-size: clamp(1.35rem, 1.1rem + 1vw, 1.8rem);
  font-weight: 500;
  line-height: 1.22;
  letter-spacing: -0.01em;
  text-wrap: balance;
  color: var(--band-ink);
}
.take-body {
  margin-bottom: 0.6rem;
  color: var(--band-ink-2);
}

/* Levels within a take (e.g. data agency): a left-to-right progression, stacked on phones. */
.tiers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin: 1.1rem 0 1rem;
  padding: 0;
  list-style: none;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--band-ink-2);
}
.tiers > li {
  position: relative;
  padding-top: 0.85rem;
}
.tiers > li::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  border-radius: 2px;
  background: var(--band-ochre);
  opacity: 0.35;
}
.tiers > li:nth-child(2)::before { opacity: 0.65; }
.tiers > li:nth-child(3)::before { opacity: 1; }
.tier-name {
  display: block;
  margin-bottom: 0.2rem;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--band-ink);
}

/* ---------- Figures ---------- */

.fig {
  margin: 1.25rem 0 0.5rem;
  padding: 1rem 1.1rem 0.85rem;
  border-radius: 4px;
  background: var(--paper-2);
}
.fig-scroll { overflow-x: auto; }
.fig svg {
  display: block;
  width: 100%;
  min-width: 30rem;
  height: auto;
  font-family: var(--sans);
}
.fig-axis { font-size: 11px; fill: var(--ink-3); }
.fig-label { font-size: 11.5px; font-weight: 600; fill: var(--ink-2); }
.fig-track { fill: var(--rule-strong); }
.fig-stem { stroke: var(--ink-3); stroke-width: 1; }
.fig-dot { stroke: var(--paper-2); stroke-width: 2; }
.fig-hit { fill: transparent; }
.fig-grid { stroke: var(--rule-strong); stroke-width: 1; opacity: 0.6; }
.fig-baseline { stroke: var(--rule-strong); stroke-width: 1; }
.fig-bar { fill: var(--accent); }
.fig-bar.is-partial { opacity: 0.45; }
.fig-mark:hover .fig-bar { fill: var(--accent-ink); }
.fig-mark:hover .fig-dot { stroke: var(--ink); }
.t-missense { fill: var(--accent); }
.t-inframe { fill: var(--ochre); }
.t-frameshift { fill: var(--sea); }

.fig-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.1rem;
  margin: 0 0 0.35rem;
  padding: 0;
  list-style: none;
  font-family: var(--sans);
  font-size: 0.8125rem;
  color: var(--ink-2);
}
.swatch {
  display: inline-block;
  width: 0.65rem;
  height: 0.65rem;
  margin-right: 0.4rem;
  border-radius: 50%;
  vertical-align: -0.02em;
}
.swatch.t-missense { background: var(--accent); }
.swatch.t-inframe { background: var(--ochre); }
.swatch.t-frameshift { background: var(--sea); }

.fig figcaption {
  margin-top: 0.6rem;
  font-family: var(--sans);
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--ink-2);
}
.fig-data { margin-top: 0.5rem; font-family: var(--sans); font-size: 0.8125rem; }
.fig-data summary { cursor: pointer; color: var(--ink-3); }
.fig-data table { margin-top: 0.5rem; border-collapse: collapse; }
.fig-data th, .fig-data td {
  padding: 0.25rem 1rem 0.25rem 0;
  border-bottom: 1px solid var(--rule);
  text-align: left;
  font-variant-numeric: tabular-nums;
}
.fig-data th { font-weight: 600; color: var(--ink-2); }

/* ---------- Lists and photos ---------- */

/* Reference-style lists: publications, coverage, recognition */
.refs {
  margin: 0;
  padding: 0;
  list-style: none;
}
.refs > li {
  padding-block: 1rem;
  border-top: 1px solid var(--rule);
}
.refs > li:last-child { padding-bottom: 0; }
.refs .title { display: block; font-size: 1.05rem; line-height: 1.4; }
a.title { text-decoration-color: var(--rule-strong); }
a.title:hover { text-decoration-color: var(--accent); }
.refs .meta { display: block; margin-top: 0.25rem; }
.refs .note {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.95rem;
  color: var(--ink-2);
}

/* Event photos in the Speaking section */
.photos {
  display: grid;
  gap: 1.25rem;
  margin: 1.75rem 0 0.25rem;
}
.photos figure { margin: 0; }
.photos img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 3px;
  background: var(--paper-2);
}
.photos figcaption { margin-top: 0.45rem; }

/* Personal photos under "Outside work" */
.snapshots {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
  margin-top: 1.75rem;
}
.snapshots img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 3px;
  background: var(--paper-2);
}

.more {
  margin-top: 1.25rem;
  font-family: var(--sans);
  font-size: 0.9375rem;
}

.subhead {
  margin: 2.25rem 0 0.75rem;
  font-family: var(--sans);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ---------- Wider screens ---------- */

@media (min-width: 46rem) {
  .record li {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1.5rem;
  }
  .record .cites { flex: none; text-align: right; }
  .photos { grid-template-columns: 1fr 1fr; }
  .hero-photo { width: 13rem; margin: 0.35rem 0 1rem 2rem; }
  .snapshots { gap: 0.9rem; }
}

@media (max-width: 30rem) {
  .lede { font-size: 1.08em; }
  .takes > li { padding-left: 2.25rem; }
}

/* Phones: figures shrink to fit; labels get bigger in SVG units and minor ticks drop out. */
@media (max-width: 40rem) {
  .fig { padding-inline: 0.75rem; }
  .fig svg { min-width: 0; }
  .fig-axis { font-size: 20px; }
  .fig-label { font-size: 16px; }
  .fig-dot { r: 8px; }
  .tick-minor, .fig-axis-title { display: none; }
  .tiers { grid-template-columns: 1fr; gap: 1rem; }
}

/* ---------- Print ---------- */

@media print {
  :root {
    --paper: #fff; --paper-2: #fff; --ink: #000; --ink-2: #222; --ink-3: #444;
    --rule: #ccc; --rule-strong: #999;
    --band-bg: #fff; --band-ink: #000; --band-ink-2: #222; --band-rule: #ccc;
  }
  body { font-size: 11pt; }
  .site-header nav, .skip, .site-footer .footer-links, .fig-data { display: none; }
  .section { padding-block: 1.25rem; break-inside: avoid-page; }
  .band { margin-inline: 0; padding-inline: 0; }
  a { text-decoration: none; }
}