/* Responsive site header using the official NIK short logo. */
.site-header {
  align-items: end;
  border-bottom: 2px solid #111;
  display: grid;
  gap: 1.5rem;
  grid-template-columns: auto minmax(0, 1fr) auto;
  margin: 0 10% 3.5rem;
  padding: 1.25rem 0 1.5rem;
}

.site-brand {
  display: block;
  line-height: 0;
}

.site-logo {
  display: block;
  height: auto;
  width: 123px;
}

.site-title-block {
  min-width: 0;
}

.institution-name {
  font-size: 1rem;
  margin: 0 0 0.45rem;
}

#site-title {
  font-size: clamp(2.6rem, 5vw, 4rem);
  line-height: 0.95;
  margin: 0;
}

.language-switch {
  align-items: center;
  display: flex;
  font-size: 1.25rem;
  font-weight: 700;
  gap: 0.35rem;
}

.language-option {
  background: transparent;
  border: 0;
  color: #111;
  cursor: pointer;
  font: inherit;
  padding: 0.3rem 0.45rem;
}

.language-option:hover,
.language-option:focus-visible,
.language-option.is-active {
  background: #ffc20c;
}

.language-option:focus-visible {
  outline: 3px solid #111;
  outline-offset: 2px;
}

/* Homepage split between editorially current and past conferences. */
.conference-section {
  clear: both;
  margin-bottom: 3.5rem;
}

.conference-section-title {
  border-bottom: 2px solid #111;
  font-size: 2.4em;
  margin: 0 0 1.2rem;
  padding-bottom: 0.45rem;
}

.conference-grid {
  display: grid;
  gap: 1.4rem;
}

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

.conference-grid-current.is-single {
  grid-template-columns: minmax(0, 1fr);
}

.conference-grid-past {
  column-gap: 1.4rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding-top: 1.8rem;
  row-gap: 2.6rem;
}

.conference-archive-item {
  display: flex;
  min-width: 0;
  position: relative;
}

.conference-archive-item .conference-card {
  height: 100%;
  width: 100%;
}

.conference-card {
  color: inherit;
  display: block;
  min-width: 0;
  text-decoration: none;
}

.conference-post {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  height: 100%;
  max-height: none;
  min-height: 0;
  overflow: visible;
  transition: box-shadow 120ms ease, transform 120ms ease;
}

.conference-post-current {
  background: #ffc20c;
  border-top-color: #ffc20c;
  min-height: 275px;
}

.conference-post-past {
  background: #fff;
  border-top-color: #b8b8b8;
  min-height: 220px;
}

.conference-post:hover,
.conference-card:focus .conference-post {
  box-shadow: 0 0 0 3px #111;
  transform: translateY(-2px);
}

.conference-post-current:hover,
.conference-card:focus .conference-post-current {
  background: #ffc20c;
}

.conference-post-past:hover,
.conference-card:focus .conference-post-past {
  background: #fff;
}

.conference-post:hover > .post-title,
.conference-post:hover > .post-date,
.conference-post:hover > .post-perex {
  display: block;
}

.conference-post .post-perex {
  color: #111;
  display: block;
  line-height: 1.5;
  padding: 0;
}

.conference-post .post-date {
  font-weight: 700;
  margin-bottom: 1rem;
}

.conference-card-title {
  color: #111;
  font-size: 2em;
  margin: 0 0 0.8rem;
}

.conference-card-past .conference-card-title {
  font-size: 1.7em;
}

.conference-status {
  font-size: 0.9em;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 1.2rem;
  text-transform: uppercase;
}

.conference-action {
  display: block;
  font-size: 1.05em;
  font-weight: 700;
  margin-top: auto;
  padding-top: 1.25rem;
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.conference-year-marker {
  color: #111;
  font-size: 1.2em;
  font-weight: 700;
  left: 0;
  line-height: 1;
  margin: 0;
  position: absolute;
  top: -1.65rem;
}

.conference-empty {
  background: #fff;
  border-left: 8px solid #ffc20c;
  box-sizing: border-box;
  font-size: 1.15em;
  margin: 0;
  padding: 1.25rem;
}

@media (max-width: 1100px) {
  .conference-grid-past {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .site-header {
    align-items: center;
    grid-template-columns: auto minmax(0, 1fr);
    margin-bottom: 2.5rem;
    padding-top: 0.75rem;
    row-gap: 1.25rem;
  }

  .site-logo {
    width: 100px;
  }

  .site-title-block {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .language-switch {
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
  }

  #site-title {
    font-size: clamp(2.5rem, 13vw, 3.6rem);
  }

  .conference-grid-current,
  .conference-grid-past {
    grid-template-columns: minmax(0, 1fr);
  }

  .conference-section-title {
    font-size: 2em;
  }

  .conference-post-current,
  .conference-post-past {
    min-height: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .conference-post {
    transition: none;
  }
}