/*
  One stylesheet for the whole site.
  Look: an engineering notebook. Warm paper, ink text, layout-fluid blue for
  links and marks, monospace for labels, and "title blocks" (the bordered
  spec grids) borrowed from drawing sheets.
*/

:root {
  --paper: #fbfaf7;
  --surface: #ffffff;
  --ink: #1c2028;
  --muted: #5e6570;
  --line: #e4e0d8;
  --line-strong: #cdc7bb;
  --accent: #1f4ba8;
  --accent-ink: #163a85;
  --accent-soft: #e4eaf7;
  --code: #f1f0eb;
  --grid: rgba(31, 75, 168, 0.07);

  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --wrap: 52rem;     /* page width: header, cards, figures */
  --measure: 40rem;  /* reading width for running text */
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0 auto;
  max-width: var(--wrap);
  min-height: 100vh;
  padding: 0 1.25rem;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

a:focus-visible,
button:focus-visible,
video:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

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

h1,
h2,
h3 {
  margin: 1.8rem 0 0.75rem;
  line-height: 1.2;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.4rem;
}

h3 {
  font-size: 1.08rem;
}

p,
ul,
ol,
pre,
blockquote,
table,
dl {
  margin-top: 0;
  margin-bottom: 1rem;
}

ul,
ol {
  padding-left: 1.3rem;
}

li + li {
  margin-top: 0.3rem;
}

/* Small uppercase monospace label, used for dates, section numbers and spec keys. */
.eyebrow,
.post-meta,
.card-meta {
  margin: 0 0 0.6rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------- Header ---------- */

.site-header {
  margin-bottom: 2.75rem;
  border-bottom: 1px solid var(--line);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem 1.5rem;
  padding: 1.25rem 0 1.1rem;
}

.site-title {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  font-size: 1.12rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.site-title::before {
  content: "";
  width: 0.7rem;
  height: 0.7rem;
  background: var(--accent);
  border-radius: 1px;
}

.site-title:hover {
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.4rem;
  font-size: 0.95rem;
}

.nav-links a {
  color: var(--muted);
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--ink);
}

.nav-links a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.45em;
}

.nav-links .nav-cv {
  color: var(--accent);
  font-weight: 600;
}

main {
  min-height: 58vh;
}

/* ---------- Home: hero ---------- */

.hero {
  padding-bottom: 1rem;
}

.hero h1 {
  max-width: 17ch;
  margin: 0 0 1rem;
  font-size: clamp(2.1rem, 6vw, 3.1rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
}

.lede {
  max-width: 37rem;
  font-size: 1.1rem;
  line-height: 1.55;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  margin: 1.6rem 0 2.25rem;
  padding: 0;
  list-style: none;
}

.actions li + li {
  margin-top: 0;
}

.button {
  display: inline-block;
  padding: 0.55rem 1.05rem;
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
}

.button:hover,
.button:focus {
  background: var(--accent-ink);
  text-decoration: none;
}

.button.ghost {
  background: var(--surface);
  color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--line-strong);
}

.button.ghost:hover,
.button.ghost:focus {
  box-shadow: inset 0 0 0 1px var(--accent);
}

.contact-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.7rem;
  margin: 1.1rem 0 2.25rem;
  font-size: 0.95rem;
}

.contact-line span {
  color: var(--line-strong);
}

/* Title block: the bordered spec grid, like the corner of a drawing sheet. */
.title-block {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0;
  border: 1px solid var(--line-strong);
  background: var(--surface);
}

.title-block > div {
  padding: 0.8rem 0.9rem 0.85rem;
  border-left: 1px solid var(--line);
}

.title-block > div:first-child {
  border-left: 0;
}

.title-block dt {
  margin-bottom: 0.3rem;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.title-block dd {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.45;
}

.credits {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.6rem;
  margin: 1.1rem 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.9rem;
}

.credits li + li {
  margin-top: 0;
}

.credits li::before {
  content: "";
  display: inline-block;
  width: 0.4rem;
  height: 0.4rem;
  margin-right: 0.55rem;
  background: var(--accent);
  vertical-align: 0.12em;
}

/* ---------- Sections and project cards ---------- */

.section {
  margin: 3.25rem 0 1rem;
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.25rem 1rem;
  margin-bottom: 1.1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--ink);
}

.section-head h2 {
  margin: 0;
}

.section-head a {
  font-size: 0.92rem;
}

.section-note {
  margin: -0.4rem 0 1.1rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
}

.card-media {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border-bottom: 1px solid var(--line);
  background: #eef0f3;
}

.card-media img,
.card-media video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.zoom {
  transform: scale(1.8);
  transform-origin: 50% 50%;
}

.card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1rem 1.1rem 1.15rem;
}

.card-meta {
  margin: 0;
}

.card h3 {
  margin: 0;
  font-size: 1.15rem;
}

.card h3 a {
  color: var(--ink);
}

.card p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.5;
}

.card .card-meta {
  font-size: 0.75rem;
  line-height: 1.4;
}

.facts {
  display: flex;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.6;
}

.facts li {
  margin: 0;
  white-space: nowrap;
}

.facts li:not(:last-child)::after {
  content: "\00b7";
  margin: 0 0.5rem 0 0.45rem;
  color: var(--muted);
}

/* Discipline tags: solid = main focus of the project, outline = supporting. */
.disciplines {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: auto 0 0;
  padding: 0.35rem 0 0;
  list-style: none;
}

.disciplines li {
  margin: 0;
  padding: 0.12rem 0.45rem;
  border: 1px solid var(--accent);
  border-radius: 3px;
  color: var(--accent-ink);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.disciplines li.core {
  background: var(--accent-soft);
}

.disciplines li:not(.core) {
  border-color: var(--line-strong);
  border-style: dashed;
  color: var(--muted);
}

/* Photo slot: graph paper with a shot list, shown until a real photo goes in. */
.placeholder {
  display: grid;
  place-content: center;
  gap: 0.35rem;
  height: 100%;
  min-height: 12rem;
  padding: 1rem 1.5rem;
  background-color: #f6f7f9;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 16px 16px;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.45;
  text-align: center;
}

.placeholder strong {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------- Post lists ---------- */

.post-list,
.taxonomy-list {
  padding-left: 0;
  list-style: none;
}

.post-list li {
  margin: 0;
  border-bottom: 1px solid var(--line);
}

.post-list article {
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr);
  gap: 0.75rem;
  align-items: baseline;
  padding: 0.7rem 0;
}

.post-list time {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
}

.post-list a {
  font-weight: 550;
}

.post-summary {
  margin: 0.15rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* ---------- Articles ---------- */

.post-header {
  margin-bottom: 2rem;
}

.post-header h1 {
  max-width: 22ch;
  margin: 0 0 0.6rem;
  font-size: clamp(1.85rem, 4.6vw, 2.5rem);
  line-height: 1.12;
  letter-spacing: -0.025em;
}

.post-meta {
  margin: 0;
}

.post-meta a {
  text-transform: none;
  letter-spacing: 0;
  font-family: var(--sans);
  font-size: 0.85rem;
}

.post-content > p,
.post-content > ul,
.post-content > ol,
.post-content > h2,
.post-content > h3,
.post-content > blockquote,
.post-content > dl {
  max-width: var(--measure);
}

.post-content p {
  margin-bottom: 0.9rem;
}

.post-content h2 {
  margin-top: 2.4rem;
}

.post-content figure {
  margin: 2rem 0;
}

.post-content figure img,
.post-content figure video {
  display: block;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
}

.caption {
  max-width: var(--measure);
  margin-top: 0.5rem;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

.post-content blockquote {
  margin-left: 0;
  padding-left: 1rem;
  border-left: 3px solid var(--accent);
  color: var(--muted);
}

.post-content pre {
  overflow-x: auto;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--code);
}

.post-content code {
  font-family: var(--mono);
  font-size: 0.88em;
}

.post-content :not(pre) > code {
  padding: 0.08rem 0.3rem;
  border-radius: 3px;
  background: var(--code);
}

.post-tags {
  margin: 2.2rem 0 1.2rem;
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.post-tags span {
  margin-right: 0.35rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.post-tags a {
  display: inline-block;
  margin: 0.2rem 0.35rem 0.2rem 0;
  padding: 0.1rem 0.45rem;
  border-radius: 3px;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-size: 0.88rem;
}

.post-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.95rem;
}

.comments {
  margin: 2.2rem 0 0;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
}

.comments h2 {
  margin-top: 0;
  color: var(--muted);
  font-size: 1rem;
}

.no-comments {
  color: var(--muted);
  font-size: 0.92rem;
}

.taxonomy-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin: 0;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--line);
}

.taxonomy-list .count {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.85rem;
}

/* ---------- Projects page ---------- */

.page-intro {
  max-width: var(--measure);
  font-size: 1.05rem;
}

.toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.4rem;
  margin: 1.2rem 0 0;
  padding: 0.8rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  list-style: none;
  font-size: 0.92rem;
}

.toc li + li {
  margin-top: 0;
}

.toc span {
  margin-right: 0.4rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.75rem;
}

.project {
  margin-top: 3.5rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--ink);
  scroll-margin-top: 1rem;
}

.project h2 {
  margin: 0 0 0.6rem;
  font-size: clamp(1.5rem, 3.6vw, 1.9rem);
  letter-spacing: -0.02em;
}

.project > p {
  max-width: var(--measure);
}

.project-media {
  margin: 1.4rem 0;
}

.project-media > img,
.project-media > .clip,
.project-media > .placeholder {
  display: block;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 4px;
}

.project-media > img {
  background: #fff;
}

.project-media > .placeholder {
  display: grid;
  aspect-ratio: 16 / 7;
}

.clip {
  aspect-ratio: 16 / 8;
  background: #56627f;
}

.clip video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.clip .zoom {
  transform: scale(1.45);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1rem 0 0;
}

.gallery figure {
  margin: 0;
}

.gallery img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  padding: 0.4rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
}

.gallery.photos img {
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center;
  padding: 0;
}

.gallery a {
  display: block;
}

.spec {
  margin: 1.4rem 0;
}

.project h3 {
  margin: 1.6rem 0 0.6rem;
  font-size: 1rem;
}

.project ul {
  max-width: var(--measure);
}

.related {
  max-width: var(--measure);
  padding: 0.75rem 0.9rem;
  border-left: 3px solid var(--accent);
  background: var(--surface);
  font-size: 0.95rem;
}

.related strong {
  display: block;
  margin-bottom: 0.15rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------- About page ---------- */

.entries {
  max-width: var(--measure);
  padding: 0;
  list-style: none;
}

.entries li {
  display: grid;
  grid-template-columns: 8.5rem minmax(0, 1fr);
  gap: 0.75rem;
  margin: 0;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
}

.entries .when {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.9;
  font-variant-numeric: tabular-nums;
}

.entries .where {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
}

.pubs {
  max-width: var(--measure);
  padding-left: 1.3rem;
}

.pubs li {
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
}

.pubs .venue {
  color: var(--muted);
}

.award {
  display: inline-block;
  margin-left: 0.2rem;
  padding: 0 0.4rem;
  border-radius: 3px;
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-size: 0.82rem;
  font-weight: 600;
}

/* ---------- Footer ---------- */

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.25rem 1.5rem;
  margin-top: 4rem;
  padding: 1.1rem 0 1.6rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}

.site-footer p {
  margin: 0;
}

/* ---------- Small screens ---------- */

@media (max-width: 720px) {
  body {
    padding: 0 1rem;
    font-size: 16px;
  }

  .site-header {
    margin-bottom: 2rem;
  }

  .title-block {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .title-block > div:nth-child(3) {
    border-left: 0;
  }

  .title-block > div:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .cards,
  .gallery {
    grid-template-columns: minmax(0, 1fr);
  }

  .post-list article,
  .entries li {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.1rem;
  }

  .post-nav {
    flex-direction: column;
    gap: 0.5rem;
  }
}

@media (max-width: 420px) {
  .title-block {
    grid-template-columns: minmax(0, 1fr);
  }

  .title-block > div {
    border-left: 0;
  }

  .title-block > div + div {
    border-top: 1px solid var(--line);
  }
}

/* ---------- Home: hero photo, wrist specs, more projects, publications ---------- */

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

.hero-grid figure {
  margin: 0.4rem 0 0;
}

.hero-grid figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 4px;
}

.hero-grid figcaption {
  margin-top: 0.45rem;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.4;
}

.hero .lede + .lede {
  margin-top: -0.2rem;
  font-size: 1rem;
}

.spec-head {
  margin: 2rem 0 0.5rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Six-cell title block: three across, two rows. */
.title-block.six {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.title-block.six > div:nth-child(n + 4) {
  border-top: 1px solid var(--line);
}

.title-block.six > div:nth-child(4) {
  border-left: 0;
}

.title-block dd strong {
  display: block;
  font-family: var(--mono);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
}

/* Smaller project cards, three across. */
.cards.small {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.cards.small .card-body {
  gap: 0.4rem;
  padding: 0.8rem 0.9rem 0.95rem;
}

.cards.small h3 {
  font-size: 1rem;
}

.cards.small p {
  font-size: 0.88rem;
}

.cards.small .card-media.figure img {
  object-fit: contain;
  padding: 0.35rem;
  background: #fff;
}

.subhead {
  margin: 2.4rem 0 0.9rem;
  font-size: 1.05rem;
}

.also {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 1.5rem;
  padding: 0;
  list-style: none;
}

.also li {
  margin: 0;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.93rem;
  line-height: 1.5;
}

.also strong {
  display: block;
  font-size: 0.97rem;
}

.pubs-home {
  padding-left: 0;
  list-style: none;
}

.pubs-home li {
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr);
  gap: 0.75rem;
  margin: 0;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
  line-height: 1.5;
}

.pubs-home .venue {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  line-height: 1.9;
  text-transform: uppercase;
}

.pubs-home .authors {
  display: block;
  color: var(--muted);
  font-size: 0.88rem;
}

@media (max-width: 860px) {
  .cards.small {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .hero-grid,
  .also,
  .cards.small {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-grid figure {
    order: -1;
    max-width: 22rem;
  }

  .title-block.six {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .title-block.six > div {
    border-top: 1px solid var(--line);
    border-left: 1px solid var(--line);
  }

  .title-block.six > div:nth-child(odd) {
    border-left: 0;
  }

  .title-block.six > div:nth-child(-n + 2) {
    border-top: 0;
  }

  .pubs-home li {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.1rem;
  }
}