@media only screen and (max-width: 25rem) {
  :root {
    font-size: calc(100vw / 25);
  }
}

:root {
  --srem: 0rem;
  --mrem: 0rem;
  --lrem: 0rem;
}

@media only screen and (min-width: 25rem) {
  :root {
    --srem: calc((100vw - 25rem) / (37.5 - 25));
    --mrem: calc((100vw - 25rem) / (48 - 25));
    --lrem: calc((100vw - 25rem) / (64 - 25));
  }
}
@media only screen and (min-width: 37.5rem) {
  :root {
    --srem: 1rem;
  }
}
@media only screen and (min-width: 48rem) {
  :root {
    --mrem: 1rem;
  }
}
@media only screen and (min-width: 64rem) {
  :root {
    --lrem: 1rem;
  }
}

.horizontal-container {
  margin: auto;
  max-width: 48rem;
  font-size: 1rem;
  background: #fff;
  padding: calc(1rem + var(--srem));
  padding-bottom: 4rem;
  border: 1px solid #ddd;
  border-left: 0.5em solid #5a8;
}

body {
  background: #eee;
}

* {
  font-family: Georgia, 'Bitstream Charter', Geneva, Verdana, Arial, Helvetica, sans-serif;
  font-weight: normal;
  text-decoration: none;
  color: #111;
}

h1 {
  font-size: 1.8em;
  color: #575;
}
h2 {
  font-size: 1.5em;
  color: #575;
}
h3 {
  font-size: 1em;
  color: #575;
}
a,
a:visited {
  border-bottom: 1px dotted;
  border-bottom-width: 1px;
  color: #22a;
}
a:hover,
a:active {
  border-bottom: 1px;
  border-bottom-width: 1px;
}
a::selection {
  color: #f00;
}

li {
  list-style-type: circle;
  padding: 0.1rem;
  margin-left: 0rem;
}

ul {
  padding-left: calc(1.2rem + 0.8 * var(--srem));
}

img.photo {
  width: calc(6rem + 4 * var(--mrem));
  max-width: 100%;
  display: block;
  margin: 0;
  padding: 0;
}

.profile-box {
  float: right;
  clear: right;
  text-align: right;
  background: #fff;
  padding: 0.4rem;
  margin: 0 0 0.75rem 1rem;
  border-radius: 0.25rem;
}

.note {
  color: #555;
  font-size: 0.95em;
}

#links {
  text-align: right;
  margin: 0.25rem 0 0;
  padding: 0;
}

#links .links-inline {
  margin: 0;
}

.favorites-toggle-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.favorites-toggle {
  margin-top: 0.5rem;
}

.favorites-toggle label {
  cursor: pointer;
  user-select: none;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.95em;
  color: #555;
  border: 1px solid #ddd;
  border-radius: 0.25rem;
  padding: 0.15rem 0.35rem;
}

.favorites-toggle label::before {
  content: '☐';
  color: #555;
}

#favorites-toggle:checked ~ header .favorites-toggle label::before {
  content: '☑';
  color: #5a8;
}

#favorites-toggle:checked ~ header .favorites-toggle label {
  background: #fff8d6;
  border-color: #e8a400;
  color: #111;
}

#favorites-toggle:checked ~ section li.favorite {
  background: #fff8d6;
  border: 1px solid #e8a400;
  overflow: hidden;
  overflow-wrap: anywhere;
  padding: 0.25rem 0.5rem;
  margin: 1px 0;
  border-radius: 0.25rem;
}

.talks {
  padding-left: 0;
  margin-top: 0.5rem;
}

.talks li {
  list-style: none;
  margin-left: 0;
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 0.75rem;
}

.talk-date {
  white-space: nowrap;
  color: #555;
}

footer {
  margin-top: 2rem;
}