:root {
  color-scheme: light dark;

  --bg: #ffffff;
  --fg: #1a1a1a;
  --muted: #6b6b6b;
  --rule: #e5e5e5;
  --link: #0645ad;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1a1a;
    --fg: #e8e6e3;
    --muted: #9a9a9a;
    --rule: #333333;
    --link: #7aa8ff;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  max-width: 45rem;
  margin: 0 auto;
  padding: 4rem 1.5rem 3rem;
}

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

a:hover {
  text-decoration: none;
}

hr {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 2.5rem 0;
}

/* Header */

header {
  text-align: center;
}

.home-link {
  color: inherit;
  text-decoration: none;
}

/* Block-level, so the portrait is not sitting on a text baseline: as an
   inline-block it picked up the line box's descender space beneath it. */
header > .home-link {
  display: block;
  width: fit-content;
  margin: 0 auto;
}

.home-link:hover {
  opacity: 0.75;
}

.avatar {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  display: block;
  margin: 0 auto;
}

h1 {
  font-size: 2rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  margin: 1.25rem 0 0.4rem;
}

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

.summary {
  max-width: 34rem;
  margin: 1.1rem auto 0.9rem;
  font-size: 1rem;
  font-style: italic;
  line-height: 1.6;
  text-wrap: pretty;
}

.location {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.links a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}

.links a:hover {
  color: var(--fg);
}

/* The icon is decorative: the link text already names the destination. */
.links a::before {
  content: "";
  width: 18px;
  height: 18px;
  flex: none;
  background: currentColor;
  -webkit-mask: var(--icon) center / contain no-repeat;
  mask: var(--icon) center / contain no-repeat;
}

.links .email {
  --icon: url("assets/icons/email.svg");
}

.links .github {
  --icon: url("assets/icons/github.svg");
}

.links .linkedin {
  --icon: url("assets/icons/linkedin.svg");
}

.links .scholar {
  --icon: url("assets/icons/scholar.svg");
}

/* Timeline */

.entry {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.entry:last-child {
  margin-bottom: 0;
}

/* Keeps the text color, so the masked Sony wordmark below does not pick up
   the link color from its wrapping anchor. */
.logo-link {
  display: block;
  margin-top: 0.4rem;
  color: var(--fg);
  text-decoration: none;
}

.logo-link:hover {
  opacity: 0.65;
}

.logo {
  display: block;
  width: 100%;
  height: 3rem;
  object-fit: contain;
}

/* Tinted rather than loaded as an image, so the monochrome Sony wordmark
   follows the text color instead of needing a light and a dark copy. */
.logo.sony {
  background: currentColor;
  -webkit-mask: url("assets/logos/sony.svg") center / contain no-repeat;
  mask: url("assets/logos/sony.svg") center / contain no-repeat;
}

.entry h2 {
  font-size: 1.05rem;
  font-weight: 650;
  margin: 0.15rem 0 0;
  line-height: 1.4;
}

.entry h2 a {
  color: inherit;
  text-decoration-color: var(--rule);
}

.entry h2 a:hover {
  color: var(--link);
}

.meta {
  margin: 0.15rem 0 0.6rem;
  color: var(--muted);
  font-size: 0.875rem;
  font-variant-numeric: tabular-nums;
}

.entry p:last-child {
  margin: 0;
}

/* Description links are quiet enough to read past, but clear on hover. */
.entry p a {
  color: var(--muted);
  text-decoration-color: var(--rule);
}

.entry p a:hover {
  color: var(--link);
  text-decoration-color: currentColor;
}

/* Footer */

footer {
  color: var(--muted);
  font-size: 0.875rem;
}

footer p {
  margin: 0;
}

/* Narrow screens */

@media (max-width: 30rem) {
  body {
    font-size: 16px;
  }

  main {
    padding: 2.5rem 1.25rem 2rem;
  }

  h1 {
    font-size: 1.75rem;
  }

  .avatar {
    width: 160px;
    height: 160px;
  }

  .entry {
    grid-template-columns: 3.25rem minmax(0, 1fr);
    gap: 1rem;
  }

  .logo {
    height: 2.25rem;
  }
}