:root {
  --color-black: #090909;
  --color-charcoal: #1b1b1b;
  --color-white: #ffffff;
  --color-cream: #f4eddb;
  --color-purple: #8428f5;
  --color-yellow: #ebe000;
  --color-text: #0d0d0d;
  --container: 1280px;
  --header-height: 44px;
  --section-space: clamp(4rem, 8vw, 6.5rem);
  --heading-font: Arial, Helvetica, sans-serif;
  --body-font: Arial, Helvetica, sans-serif;
  --mono-font: "Courier New", Courier, monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1rem);
}

body {
  margin: 0;
  color: var(--color-text);
  background: var(--color-white);
  font-family: var(--body-font);
  font-size: 16px;
  line-height: 1.35;
}

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

a {
  color: inherit;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1,
h2,
h3,
h4 {
  font-family: var(--heading-font);
}

.container {
  width: min(calc(100% - 2rem), var(--container));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.65rem 0.9rem;
  background: var(--color-white);
  color: var(--color-black);
  transform: translateY(-200%);
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 3px solid var(--color-purple);
  outline-offset: 3px;
}

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  min-height: var(--header-height);
  color: var(--color-white);
  background: var(--color-black);
  border-bottom: 3px solid var(--color-purple);
}

.site-header__inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-name {
  font-size: 0.72rem;
  font-weight: 800;
  text-decoration: none;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.35rem;
}

.site-nav a {
  font-size: 0.66rem;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-yellow);
}

.hero {
  padding: 3.25rem 0 2.2rem;
  background: var(--color-white);
}

.hero__inner {
  min-height: 460px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(270px, 0.88fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 4.5rem);
}

.hero__content {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding-block: 0.2rem 1.35rem;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
}

.brand-lockup__logo {
  width: 54px;
  height: 54px;
  object-fit: contain;
}

.brand-lockup__name {
  font-family: var(--mono-font);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  white-space: nowrap;
}

.hero h1 {
  margin-bottom: 1.2rem;
  font-size: clamp(4.1rem, 8vw, 5.7rem);
  line-height: 0.82;
  letter-spacing: -0.055em;
}

.hero__role {
  margin-bottom: 0;
  font-size: clamp(1.05rem, 2.3vw, 1.35rem);
  line-height: 1.15;
  letter-spacing: 0.27em;
  text-transform: uppercase;
}

.hero__media {
  display: grid;
  place-items: center;
}

.hero__media img {
  aspect-ratio: 1;
  border-radius: 50%;
  object-fit: cover;
  height:auto;
}

.about-section,
.credentials-section {
  background: var(--color-cream);
}

.about-section {
  padding: var(--section-space) 0;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(3rem, 8vw, 5rem);
}

.about-section h2,
.credentials-section > .container > h2 {
  margin-bottom: 2rem;
  font-size: clamp(2.6rem, 6vw, 3.2rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.about-copy > p {
  max-width: 35rem;
  margin-bottom: 3.15rem;
  font-size: 1.25rem;
  line-height: 1.15;
}

.contact-list {
  display: grid;
  gap: 0.55rem;
  font-size: 0.72rem;
  font-style: normal;
}

.contact-list a,
.contact-list > span {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
}

.contact-list a:hover {
  text-decoration: underline;
}

.contact-list svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: 0 0 auto;
}

.expertise h2 {
  margin-bottom: 1.65rem;
  font-size: clamp(2.6rem, 6vw, 3.2rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.expertise-grid li {
  min-height: 42px;
  display: grid;
  place-items: center;
  padding: 0.75rem 0.8rem;
  background: var(--color-white);
  font-size: 0.74rem;
  font-weight: 700;
  text-align: center;
}

.expertise-grid li:nth-child(2),
.expertise-grid li:nth-child(3),
.expertise-grid li:nth-child(6),
.expertise-grid li:nth-child(7) {
  color: var(--color-white);
  background: var(--color-black);
}

.focus-section {
  padding: var(--section-space) 0 calc(var(--section-space) + 1rem);
  color: var(--color-white);
  background: var(--color-black);
}

.focus-section h2 {
  margin-bottom: 2.65rem;
  color: var(--color-purple);
  font-size: clamp(2.5rem, 6vw, 3.25rem);
  line-height: 1;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.timeline {
  position: relative;
  display: grid;
  gap: 1.4rem;
  padding-left: 3.4rem;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 1.35rem;
  width: 2px;
  background: var(--color-yellow);
}

.timeline-card {
  position: relative;
  min-height: 96px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 1rem;
  padding: 1.55rem 1.4rem 1.35rem;
  background: var(--color-charcoal);
}

.timeline-card__dot {
  position: absolute;
  top: 1.4rem;
  left: -31px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--color-yellow);
  transform: translateX(-50%);
}

.timeline-card h3 {
  margin-bottom: 0.35rem;
  color: var(--color-purple);
  font-size: clamp(1.15rem, 3vw, 1.55rem);
  line-height: 1;
}

.timeline-card__role {
  margin-bottom: 0.3rem;
  font-family: var(--mono-font);
  font-size: 0.72rem;
}

.timeline-card__dates {
  margin-bottom: 0;
  color: #b6b6b6;
  font-family: var(--mono-font);
  font-size: 0.63rem;
}

.timeline-card__chevron {
  color: var(--color-yellow);
  font-size: 1.2rem;
  line-height: 1;
}

.credentials-section {
  padding: var(--section-space) 0;
}

.credentials-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.35rem;
}

.credentials-column-title {
  margin-bottom: 1rem;
  font-size: 0.95rem;
  text-transform: uppercase;
}

.credential-stack {
  display: grid;
  gap: 1.15rem;
}

.credential-card {
  min-height: 142px;
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 0.9rem;
  padding: 1.4rem 1.5rem;
  background: var(--color-yellow);
}

.credential-card__icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.credential-card h4 {
  margin-bottom: 0.25rem;
  font-size: 0.98rem;
  line-height: 1.1;
}

.credential-card p {
  margin-bottom: 0.35rem;
  font-size: 0.68rem;
  line-height: 1.18;
}

.credential-card__institution,
.credential-card__year {
  font-family: var(--mono-font);
}

.credential-card__year {
  color: #535353;
}


/* Footer / social links */
.site-footer {
  color: var(--color-white);
  background: var(--color-black);
}

.social-section {
  padding: clamp(4.5rem, 8vw, 7.5rem) 0;
}

.social-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.25rem, 2.5vw, 2.25rem);
}

.social-card {
  min-height: clamp(220px, 23vw, 360px);
  display: flex;
  align-items: flex-end;
  padding: clamp(1.75rem, 3vw, 3rem);
  color: var(--color-white);
  background: var(--color-charcoal);
  border: 1px solid;
  text-decoration: none;
  transition: background-color 160ms ease, transform 160ms ease;
}

.social-card--linkedin {
  border-color: #2858ba;
}

.social-card--instagram {
  justify-content: flex-end;
  border-color: var(--color-purple);
  text-align: right;
}

.social-card span {
  font-family: var(--heading-font);
  font-size: clamp(1.55rem, 2.4vw, 2.25rem);
  font-weight: 800;
  line-height: 1.05;
}

.social-card:hover,
.social-card:focus-visible {
  background: #222;
  transform: translateY(-2px);
}

.site-footer__bottom {
  border-top: 1px solid #202020;
}

.site-footer__inner {
  min-height: 190px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
  padding-block: 2.5rem;
  text-align: center;
}

.site-footer__logo {
  width: 56px;
  height: 56px;
  object-fit: contain;
}

.site-footer__copyright {
  margin: 0;
  color: #f5efd9;
  font-family: var(--mono-font);
  font-size: clamp(0.74rem, 1.25vw, 1rem);
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
.social-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: #181818;
}

.social-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;

  background-size: cover;
  background-position: center;

  opacity: 0.25;
  filter: grayscale(50%);
  transform: scale(1.02);
}

.social-card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;

  background: rgba(0, 0, 0, 0.25);
}

.social-card--linkedin::before {
  background-image: url("../images/linkedin-bg.webp");
}

.social-card--instagram::before {
  background-image: url("../images/instagram-bg.webp");
}


@media (max-width: 760px) {
.hero__title-block {text-align:center;}
  :root {
    --section-space: 4rem;
  }
.brand-lockup {justify-content:center;}
  .hero {
    padding-top: 2.2rem;
  }

  .hero__inner {
    min-height: 0;
    grid-template-columns: 1fr;
  }

  .hero__content {
    gap: 3rem;
    padding-bottom: 0;
  }

  .hero__media {
    grid-row: 2;
    justify-content: center;
  }

  .hero__media img {
    width: 100%;
    height:auto;
  }

  .hero__content {
    grid-row: 1;
  }

  .hero h1 {
    font-size: clamp(4rem, 18vw, 6rem);
  }

  .about-grid,
  .credentials-grid {
    grid-template-columns: 1fr;
  }

  .about-grid {
    gap: 3.25rem;
  }

  .about-copy > p {
    margin-bottom: 2.2rem;
  }

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

  .social-card {
    min-height: 210px;
  }

  .social-card--instagram {
    justify-content: flex-start;
    text-align: left;
  }

}

@media (max-width: 500px) {

  .container {
    width: min(calc(100% - 1.5rem), var(--container));
  }

  .site-header__inner {
    min-height: 48px;
  }

  .site-name {
    font-size: 0.68rem;
  }

  .site-nav {
    gap: 0.85rem;
  }

  .site-nav a {
    font-size: 0.62rem;
  }

  .brand-lockup__logo {
    width: 42px;
    height: 42px;
  }

  .brand-lockup__name {
    font-size: 0.78rem;
    letter-spacing: 0.22em;
  }

  .hero__role {
    font-size: 1rem;
    letter-spacing: 0.2em;
  }

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

  .expertise-grid li:nth-child(odd) {
    color: var(--color-text);
    background: var(--color-white);
  }

  .expertise-grid li:nth-child(even) {
    color: var(--color-white);
    background: var(--color-black);
  }

  .timeline {
    padding-left: 2rem;
  }

  .timeline::before {
    left: 0.45rem;
  }

  .timeline-card {
    padding-inline: 1rem;
  }

  .timeline-card__dot {
    left: -24px;
  }

  .credential-card {
    padding: 1.2rem;
  }

  .social-card {
    min-height: 170px;
    padding: 1.5rem;
  }

  .site-footer__inner {
    min-height: 160px;
  }

}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}