@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&family=Quicksand:wght@500;700&display=swap");

:root {
  --site-heading-font: "Quicksand", "Noto Sans JP", sans-serif;
  --site-body-font: "Noto Sans JP", sans-serif;
  --hero-bg: linear-gradient(135deg, rgba(13, 148, 136, 0.12), rgba(245, 158, 11, 0.14));
  --hero-border: rgba(13, 148, 136, 0.18);
  --hero-link-bg: rgba(255, 255, 255, 0.72);
  --hero-link-border: rgba(13, 148, 136, 0.28);
  --hero-link-color: var(--md-primary-fg-color);
  --hero-shadow: 0 16px 40px rgba(15, 23, 42, 0.16);
  --figure-shadow: 0 16px 36px rgba(15, 23, 42, 0.14);
}

[data-md-color-scheme="slate"] {
  --hero-bg: linear-gradient(135deg, rgba(13, 148, 136, 0.18), rgba(245, 158, 11, 0.12));
  --hero-border: rgba(94, 234, 212, 0.22);
  --hero-link-bg: rgba(15, 23, 42, 0.55);
  --hero-link-border: rgba(94, 234, 212, 0.28);
  --hero-link-color: rgba(226, 232, 240, 0.96);
  --hero-shadow: 0 20px 48px rgba(2, 6, 23, 0.34);
  --figure-shadow: 0 18px 40px rgba(2, 6, 23, 0.32);
}

body,
input,
button,
textarea {
  font-family: var(--site-body-font);
}

.md-header__title,
.md-nav__title,
.md-tabs__link,
.hero-title {
  font-family: var(--site-heading-font);
}

.hero {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(0, 180px) minmax(0, 1fr);
  align-items: center;
  padding: 1.5rem;
  margin: 0 0 2rem;
  background: var(--hero-bg);
  border: 1px solid var(--hero-border);
  border-radius: 20px;
}

.hero-copy {
  height: 270px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  box-sizing: border-box;
}

.md-header__inner {
  min-height: 3rem;
}

.md-tabs {
  border-top: 0;
}

.md-tabs__list {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.md-tabs__item {
  height: auto;
}

.md-tabs__link {
  margin-top: 0;
  padding: 0.7rem 0.9rem;
}

@media (min-width: 76.25em) {
  .md-header {
    position: sticky;
    top: 0;
  }

  .md-header__inner {
    min-height: 3.4rem;
  }

  .md-header__topic[data-md-component="header-topic"] {
    display: none;
  }

  .md-header__topic {
    display: block;
  }

  .md-header__title--active .md-header__topic:first-child {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(0);
    z-index: 0;
  }

  .md-header__title--active .md-header__topic + .md-header__topic {
    opacity: 0;
    pointer-events: none;
    transform: translateX(1.25rem);
    z-index: -1;
  }

  .md-header__title {
    margin-right: 0;
    min-width: max-content;
    overflow: visible;
  }

  .md-header__ellipsis {
    overflow: visible;
  }

  .md-tabs {
    position: absolute;
    top: 0;
    left: clamp(15rem, 34vw, 24rem);
    right: 8.5rem;
    height: 100%;
    background: transparent;
    box-shadow: none;
    pointer-events: none;
  }

  .md-tabs .md-grid {
    display: flex;
    align-items: center;
    max-width: none;
    height: 100%;
    margin: 0;
    padding: 0;
  }

  .md-tabs__list {
    height: 100%;
    gap: 0.1rem;
    justify-content: flex-start;
    pointer-events: auto;
  }

  .md-tabs__link {
    padding: 0.85rem 0.75rem;
  }

  .md-sidebar--primary {
    display: none;
  }

  .md-content {
    margin-left: 0;
  }
}

.hero img {
  width: 180px;
  height: 180px;
  object-fit: cover;
  border-radius: 24px;
  box-shadow: var(--hero-shadow);
}

.hero h1,
.hero-title {
  margin: 0;
}

.hero-title {
  font-size: clamp(2.3rem, 5vw, 4rem);
  line-height: 1.02;
}

.hero-subtitle {
  margin: 0.45rem 0 0;
  font-size: 1.15rem;
  font-weight: 700;
}

.hero-affiliation {
  margin: 0.25rem 0 0;
  color: var(--md-default-fg-color--light);
  font-size: 1rem;
  line-height: 1.45;
  max-width: 38rem;
}

.hero-social {
  display: flex;
  gap: 0.8rem;
  margin-top: 0.9rem;
}

.hero-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  border: 1px solid var(--hero-link-border);
  background: var(--hero-link-bg);
  color: var(--hero-link-color);
}

.hero-social svg {
  width: 1.25rem;
  height: 1.25rem;
  fill: currentColor;
}

.hero p {
  margin: 0.5rem 0;
}

.profile-section {
  position: relative;
  margin: 2.4rem 0 1rem;
  padding: 0.45rem 0 0.45rem 1rem;
  border-left: 4px solid var(--md-primary-fg-color);
  font-size: 1.55rem;
  line-height: 1.2;
}

.profile-section::after {
  content: "";
  position: absolute;
  left: -4px;
  bottom: -0.08rem;
  width: min(180px, 36%);
  height: 4px;
  background: linear-gradient(90deg, var(--md-primary-fg-color), transparent);
  border-radius: 999px;
  box-shadow: 0 5px 14px color-mix(in srgb, var(--md-primary-fg-color) 30%, transparent);
}

.profile-section + p,
.profile-section + ul,
.profile-section + .timeline {
  margin-top: 0.7rem;
}

[data-md-color-scheme="slate"] .profile-section {
  border-left-color: rgba(94, 234, 212, 0.85);
}

[data-md-color-scheme="slate"] .profile-section::after {
  background: linear-gradient(90deg, rgba(94, 234, 212, 0.9), transparent);
}

.timeline {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.08rem;
}

.timeline li {
  padding: 0;
  margin: 0;
}

.timeline strong {
  display: block;
  margin-bottom: 0.08rem;
  line-height: 1.28;
}

.timeline span {
  display: block;
  color: var(--md-default-fg-color--light);
  line-height: 1.28;
  font-size: 0.94rem;
}

.timeline span + span {
  margin-top: 0;
  font-size: 0.88rem;
}

.research-image {
  text-align: center;
  margin: 1.5rem 0;
}

.research-image img {
  max-width: min(100%, 560px);
  border-radius: 18px;
  box-shadow: var(--figure-shadow);
}

.research-image figcaption {
  margin-top: 0.6rem;
  color: var(--md-default-fg-color--light);
}

@media (max-width: 760px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .profile-section {
    padding-left: 0.85rem;
    font-size: 1.35rem;
  }

  .hero-title {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .hero img {
    margin: 0 auto;
  }

  .hero-copy {
    height: auto;
    align-items: center;
  }

  .hero-affiliation {
    max-width: 32rem;
  }

  .hero-social {
    justify-content: center;
  }

}