:root {
  --paper: #f3f0e8;
  --paper-deep: #e7e1d4;
  --ink: #171713;
  --muted: #666259;
  --signal: #d4482f;
  --rule: #b8b0a1;
  --display: "Newsreader", Georgia, serif;
  --body: "IBM Plex Sans", sans-serif;
  --mono: "IBM Plex Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(rgba(23, 23, 19, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 23, 19, 0.035) 1px, transparent 1px),
    #d6d0c4;
  background-size: 32px 32px;
  font-family: var(--body);
  font-size: 1rem;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration-color: var(--signal);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--signal);
}

a:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 4px;
}

p,
h1,
h2,
h3,
figure {
  margin: 0;
}

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

.skip-link {
  position: fixed;
  z-index: 10;
  top: 1rem;
  left: 1rem;
  padding: 0.65rem 1rem;
  color: var(--paper);
  background: var(--signal);
  font-family: var(--mono);
  font-size: 0.75rem;
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: translateY(0);
}

.page-shell {
  width: min(100% - 2rem, 1240px);
  margin: 1rem auto;
  overflow: hidden;
  background: var(--paper);
  box-shadow: 0 2rem 5rem rgba(20, 18, 14, 0.2);
}

.masthead {
  position: relative;
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr) minmax(16rem, 0.42fr);
  grid-template-areas:
    "index copy portrait"
    "contact contact contact";
  min-height: 35rem;
  color: var(--paper);
  background: var(--ink);
}

.masthead::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 3.4rem;
  width: 8rem;
  height: 0.45rem;
  background: var(--signal);
}

.masthead__index {
  grid-area: index;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 0 5.5rem;
  border-right: 1px solid rgba(243, 240, 232, 0.22);
  color: #a8a298;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
}

.masthead__copy {
  grid-area: copy;
  align-self: center;
  padding: 4.5rem clamp(2rem, 5vw, 5rem);
}

.eyebrow,
.section-number,
.proof-card__meta,
.role__signal {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 2rem;
  color: #c9c3b7;
}

.eyebrow::before {
  content: "";
  width: 2.5rem;
  height: 0.18rem;
  background: var(--signal);
}

h1 {
  font-family: var(--display);
  font-size: clamp(4.8rem, 9vw, 8.5rem);
  font-weight: 500;
  letter-spacing: -0.065em;
  line-height: 0.75;
}

.lede {
  max-width: 47rem;
  margin-top: 3.4rem;
  color: #d9d4ca;
  font-family: var(--display);
  font-size: clamp(1.18rem, 1.6vw, 1.5rem);
  line-height: 1.46;
}

.portrait {
  grid-area: portrait;
  align-self: center;
  margin: 3rem 3rem 3rem 0;
}

.portrait img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  filter: grayscale(100%) contrast(1.08);
  border: 1px solid rgba(243, 240, 232, 0.35);
}

.portrait figcaption {
  margin-top: 0.7rem;
  color: #9f9a90;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.contact-strip {
  grid-area: contact;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-self: end;
  border-top: 1px solid rgba(243, 240, 232, 0.22);
  font-style: normal;
}

.contact-strip a {
  min-width: 0;
  padding: 1.1rem 1.4rem;
  overflow: hidden;
  border-right: 1px solid rgba(243, 240, 232, 0.22);
  color: #c9c3b7;
  font-family: var(--mono);
  font-size: clamp(0.62rem, 1vw, 0.75rem);
  text-decoration: none;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.contact-strip a:hover {
  color: var(--paper);
  background: var(--signal);
}

.section-block {
  padding: clamp(3.5rem, 7vw, 7rem) clamp(1.5rem, 6vw, 5rem);
}

.section-heading h2,
.profile h2 {
  font-family: var(--display);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 0.96;
}

.section-heading h2 {
  margin-top: 1.2rem;
  font-size: clamp(3.2rem, 6vw, 5.8rem);
}

.section-number {
  color: var(--signal);
}

.proof {
  display: grid;
  grid-template-columns: minmax(15rem, 0.8fr) minmax(0, 1.7fr);
  gap: clamp(2rem, 5vw, 6rem);
  border-bottom: 1px solid var(--rule);
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.proof-card {
  position: relative;
  min-height: 17rem;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: var(--paper);
}

.proof-card--feature {
  grid-column: 1 / -1;
  min-height: 19rem;
  padding-right: 20%;
  background: var(--paper-deep);
}

.proof-card--feature::after {
  content: "O(1)";
  position: absolute;
  right: 2rem;
  bottom: 0;
  color: rgba(212, 72, 47, 0.16);
  font-family: var(--display);
  font-size: clamp(5rem, 10vw, 8rem);
  font-weight: 600;
  line-height: 0.7;
}

.proof-card__meta {
  color: var(--muted);
}

.proof-card h3 {
  max-width: 28rem;
  margin: 1.2rem 0 1.8rem;
  font-family: var(--display);
  font-size: clamp(1.8rem, 3vw, 2.55rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.02;
}

.proof-card p:last-child {
  max-width: 39rem;
  color: #3e3c36;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 2.15fr) minmax(18rem, 0.85fr);
}

.experience {
  min-width: 0;
  padding-right: clamp(2rem, 6vw, 6rem);
}

.section-heading--inline {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 3.5rem;
}

.section-heading--inline h2 {
  margin: 0;
  font-size: clamp(3rem, 5vw, 5rem);
}

.timeline {
  border-top: 1px solid var(--ink);
}

.role {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  padding: 2.4rem 0;
  border-bottom: 1px solid var(--rule);
  break-inside: avoid;
}

.role__when {
  padding-top: 0.25rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  line-height: 1.45;
  text-transform: uppercase;
}

.role__body {
  position: relative;
}

.role h3 {
  font-family: var(--display);
  font-size: clamp(1.85rem, 3vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1;
}

.role__company {
  margin: 0.4rem 0 1.2rem;
  color: var(--signal);
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
}

.role__body > p:last-child,
.role li {
  max-width: 48rem;
  color: #444139;
}

.role ul {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.role li {
  position: relative;
  padding-left: 1.3rem;
}

.role li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--signal);
}

.role__signal {
  position: absolute;
  top: 0.45rem;
  right: 0;
  color: var(--signal);
}

.role--current {
  border-top: 0.45rem solid var(--signal);
  background: var(--paper-deep);
  margin: -1px -2rem 0;
  padding-right: 2rem;
  padding-left: 2rem;
}

.role--community {
  border-left: 0.25rem solid var(--signal);
  padding-left: 1.25rem;
}

.profile {
  padding: clamp(3.5rem, 7vw, 7rem) clamp(1.5rem, 3.4vw, 3.2rem);
  color: var(--paper);
  background: #262620;
}

.profile section {
  padding-bottom: 3.2rem;
  margin-bottom: 3.2rem;
  border-bottom: 1px solid rgba(243, 240, 232, 0.2);
  break-inside: avoid;
}

.profile section:last-child {
  margin-bottom: 0;
  border-bottom: 0;
}

.profile h2 {
  margin: 1rem 0 2rem;
  font-size: clamp(2rem, 3vw, 2.8rem);
}

.profile p {
  color: #d2cdc3;
}

.profile small {
  color: #989389;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.profile .languages h2 {
  margin-bottom: 1.25rem;
  font-size: clamp(1.65rem, 2.3vw, 2.15rem);
}

.language-list {
  margin: 0;
}

.language-list > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: baseline;
  padding: 0.8rem 0;
  border-top: 1px solid rgba(243, 240, 232, 0.2);
}

.language-list dt {
  font-family: var(--display);
  font-size: 1.15rem;
}

.language-list dd {
  margin: 0;
  color: #989389;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.skill-group {
  padding: 1.25rem 0;
  border-top: 1px solid rgba(243, 240, 232, 0.2);
}

.skill-group h3 {
  margin: 0 0 0.5rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.skill-group p {
  font-family: var(--display);
  font-size: 1.15rem;
  line-height: 1.42;
}

.plain-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.list-heading {
  margin: 2rem 0 0.5rem;
  color: #989389;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.plain-list li {
  padding: 1rem 0;
  border-top: 1px solid rgba(243, 240, 232, 0.2);
  font-family: var(--display);
  font-size: 1.15rem;
  line-height: 1.25;
}

.plain-list span {
  display: inline-block;
  width: 3.4rem;
  color: var(--signal);
  font-family: var(--mono);
  font-size: 0.65rem;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.3rem clamp(1.5rem, 6vw, 5rem);
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.print-clause {
  display: none;
}

@keyframes dossier-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: no-preference) {
  .masthead__copy,
  .portrait,
  .contact-strip {
    opacity: 0;
    animation: dossier-in 650ms cubic-bezier(0.2, 0.7, 0.2, 1) forwards;
  }

  .portrait {
    animation-delay: 120ms;
  }

  .contact-strip {
    animation-delay: 240ms;
  }
}

@media (max-width: 900px) {
  .masthead {
    grid-template-columns: 3.5rem minmax(0, 1fr) 12rem;
  }

  .masthead__copy {
    padding-right: 2rem;
    padding-left: 2rem;
  }

  .portrait {
    margin-right: 1.5rem;
  }

  .proof {
    grid-template-columns: 1fr;
  }

  .section-heading h2 br {
    display: none;
  }

  .content-grid {
    grid-template-columns: 1fr;
  }

  .profile {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0 3rem;
  }
}

@media (max-width: 680px) {
  body {
    background: var(--paper);
  }

  .page-shell {
    width: 100%;
    margin: 0;
    box-shadow: none;
  }

  .masthead {
    grid-template-columns: 2.5rem 1fr 6.5rem;
    grid-template-areas:
      "index copy copy"
      "index copy portrait"
      "contact contact contact";
  }

  .masthead__index {
    padding-top: 1.25rem;
    padding-bottom: 4rem;
  }

  .masthead__copy {
    padding: 3rem 1.25rem 2rem;
  }

  h1 {
    font-size: clamp(4rem, 19vw, 6.2rem);
  }

  .lede {
    margin-top: 2.5rem;
    font-size: 1.12rem;
  }

  .portrait {
    align-self: end;
    margin: 0 1.25rem 1.5rem 0;
  }

  .portrait figcaption {
    display: none;
  }

  .contact-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-strip a:nth-child(2n) {
    border-right: 0;
  }

  .section-block {
    padding: 3.5rem 1.25rem;
  }

  .proof-grid {
    grid-template-columns: 1fr;
  }

  .proof-card--feature {
    grid-column: auto;
    padding-right: 1.5rem;
  }

  .proof-card--feature::after {
    font-size: 5.5rem;
  }

  .section-heading--inline {
    display: block;
  }

  .section-heading--inline h2 {
    margin-top: 0.8rem;
  }

  .role {
    grid-template-columns: 4.4rem minmax(0, 1fr);
    gap: 1rem;
  }

  .role--current {
    margin-right: -1.25rem;
    margin-left: -1.25rem;
    padding-right: 1.25rem;
    padding-left: 1.25rem;
  }

  .role__signal {
    position: static;
    margin-bottom: 0.5rem;
  }

  .profile {
    grid-template-columns: 1fr;
    padding: 3.5rem 1.25rem;
  }

  footer {
    display: block;
  }
}

@page {
  size: A4;
  margin: 12mm 11mm 13mm;
}

@media print {
  :root {
    --paper: #fff;
    --paper-deep: #f2f0eb;
  }

  html {
    font-size: 8.25pt;
  }

  body {
    background: #fff;
  }

  a {
    text-decoration: none;
  }

  .skip-link,
  .masthead__index,
  .masthead::after {
    display: none;
  }

  .masthead__copy,
  .portrait,
  .contact-strip {
    opacity: 1;
    animation: none;
    transform: none;
  }

  .outside {
    display: none;
  }

  .page-shell {
    width: 100%;
    margin: 0;
    overflow: visible;
    box-shadow: none;
  }

  .masthead {
    grid-template-columns: minmax(0, 1fr) 27mm;
    grid-template-areas:
      "copy portrait"
      "contact contact";
    min-height: 0;
    color: var(--ink);
    background: #fff;
    border-bottom: 1.5pt solid var(--ink);
  }

  .masthead__copy {
    padding: 0 6mm 5mm 0;
  }

  .eyebrow {
    margin-bottom: 3mm;
    color: var(--signal);
  }

  h1 {
    font-size: 38pt;
    line-height: 0.8;
  }

  .lede {
    margin-top: 4mm;
    color: var(--ink);
    font-size: 11pt;
    line-height: 1.25;
  }

  .portrait {
    align-self: start;
    margin: 0;
  }

  .portrait figcaption {
    display: none;
  }

  .contact-strip {
    grid-template-columns: repeat(4, 1fr);
    border-top: 0.5pt solid var(--rule);
  }

  .contact-strip a {
    padding: 2mm;
    border-right: 0.5pt solid var(--rule);
    color: var(--ink);
    font-size: 6pt;
  }

  .section-block {
    padding: 7mm 0;
  }

  .proof {
    grid-template-columns: 0.65fr 1.7fr;
    gap: 7mm;
  }

  .section-heading h2 {
    margin-top: 2mm;
    font-size: 25pt;
  }

  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .proof-card {
    min-height: 0;
    padding: 4mm;
  }

  .proof-card--feature {
    padding-right: 20%;
  }

  .proof-card--feature::after {
    font-size: 46pt;
  }

  .proof-card h3 {
    margin: 2mm 0 3mm;
    font-size: 17pt;
  }

  .content-grid {
    grid-template-columns: minmax(0, 2.25fr) minmax(42mm, 0.75fr);
  }

  .experience {
    padding-right: 7mm;
  }

  .section-heading--inline {
    margin-bottom: 5mm;
  }

  .section-heading--inline h2 {
    font-size: 25pt;
  }

  .role {
    grid-template-columns: 16mm minmax(0, 1fr);
    gap: 4mm;
    padding: 4mm 0;
  }

  .role--current {
    margin-right: -3mm;
    margin-left: -3mm;
    padding-right: 3mm;
    padding-left: 3mm;
  }

  .role h3 {
    font-size: 15pt;
  }

  .role__company {
    margin: 1mm 0 2mm;
  }

  .role ul {
    gap: 1mm;
  }

  .profile {
    display: block;
    padding: 7mm 4mm;
    color: var(--ink);
    background: #ece9e2;
  }

  .profile section {
    padding-bottom: 5mm;
    margin-bottom: 5mm;
    border-bottom: 0.5pt solid var(--rule);
  }

  .profile h2 {
    margin: 2mm 0 4mm;
    font-size: 16pt;
  }

  .profile .languages h2 {
    margin: 2mm 0 2.5mm;
    font-size: 14pt;
  }

  .profile p,
  .profile small {
    color: var(--ink);
  }

  .skill-group,
  .plain-list li,
  .language-list > div {
    padding: 2mm 0;
    border-top: 0.5pt solid var(--rule);
  }

  .language-list dd {
    color: var(--ink);
  }

  .skill-group p,
  .plain-list li {
    font-size: 9pt;
  }

  footer {
    display: block;
    padding: 3mm 0 0;
  }

  footer > p:first-child {
    display: none;
  }

  .print-clause {
    display: block;
  }
}