@charset "UTF-8";
.pub-section {
  padding: 28px 24px 0;
}
.pub-section:last-of-type {
  padding-bottom: 28px;
}

.pub-section__header {
  margin-bottom: 16px;
}

.pub-full-list {
  list-style: none;
  border-top: 0.5px solid #e0dfd9;
}

.pub-full-item {
  display: flex;
  gap: 16px;
  justify-content: space-between;
  align-items: flex-start;
  padding: 14px 0;
  border-bottom: 0.5px solid #e0dfd9;
}

.pub-full-item__main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.pub-full-item__title {
  font-size: 1rem;
  color: #1a1a18;
  line-height: 1.55;
}
.pub-full-item__title a {
  color: #1b3a6b;
}
.pub-full-item__title a:hover {
  text-decoration: underline;
}

.pub-full-item__preprint-badge {
  display: inline-block;
  font-size: 0.75rem;
  padding: 1px 6px;
  background: #e4f0e8;
  color: #2d6b40;
  border-radius: 20px;
  margin-left: 6px;
  vertical-align: middle;
  font-weight: 500;
}

.pub-full-item__authors {
  font-size: 0.9375rem;
  color: #888780;
}

.pub-full-item__meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: baseline;
  font-size: 0.875rem;
}

.pub-full-item__venue {
  color: #444441;
  font-style: italic;
}

.pub-full-item__series {
  color: #888780;
}

.pub-full-item__volume {
  color: #888780;
}

.pub-full-item__year {
  color: #ffffff;
  background: #888780;
  padding: 1px 7px;
  border-radius: 20px;
  font-style: normal;
  font-size: 0.8125rem;
}

.pub-full-item__links {
  display: flex;
  flex-direction: column;
  gap: 5px;
  flex-shrink: 0;
  padding-top: 2px;
}

.pub-full-item__link {
  font-size: 0.875rem;
  padding: 3px 10px;
  border-radius: 20px;
  border: 0.5px solid #e0dfd9;
  color: #444441;
  white-space: nowrap;
  text-align: center;
}
.pub-full-item__link:hover {
  border-color: #1b3a6b;
  color: #1b3a6b;
}
.pub-full-item__link--preprint {
  background: #e8edf7;
  border-color: #e8edf7;
  color: #1b3a6b;
  font-weight: 500;
}
.pub-full-item__link--preprint:hover {
  background: rgb(83.5610373182%, 87.1347248577%, 94.2820999367%);
}

.pub-footer-note {
  padding: 20px 24px 28px;
  border-top: 0.5px solid #e0dfd9;
  font-size: 0.875rem;
  color: #888780;
  line-height: 1.8;
}
.pub-footer-note a {
  color: #1b3a6b;
}
.pub-footer-note a:hover {
  text-decoration: underline;
}

.software-list, .patent-list {
  list-style: none;
  border-top: 0.5px solid #e0dfd9;
}

.software-item {
  padding: 14px 0;
  border-bottom: 0.5px solid #e0dfd9;
}

.software-item__head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.software-item__name {
  font-size: 1.125rem;
  font-weight: 500;
  color: #1b3a6b;
}

.software-item__role {
  font-size: 0.8125rem;
  padding: 1px 8px;
  border-radius: 20px;
  background: #e4f0e8;
  color: #2d6b40;
}

.software-item__desc {
  font-size: 1rem;
  color: #888780;
  line-height: 1.75;
  margin-bottom: 8px;
}

.software-item__link {
  font-size: 0.875rem;
  color: #1b3a6b;
}
.software-item__link:hover {
  text-decoration: underline;
}

.patent-item {
  display: flex;
  gap: 16px;
  justify-content: space-between;
  align-items: flex-start;
  padding: 14px 0;
  border-bottom: 0.5px solid #e0dfd9;
}

.patent-item__title {
  font-size: 1rem;
  color: #1a1a18;
  line-height: 1.5;
  margin-bottom: 3px;
}
.patent-item__title a {
  color: #1b3a6b;
}
.patent-item__title a:hover {
  text-decoration: underline;
}

.patent-item__inventors {
  font-size: 0.875rem;
  color: #888780;
  line-height: 1.6;
}

.patent-item__number {
  font-size: 0.8125rem;
  color: #444441;
  background: #f0efeb;
  padding: 2px 9px;
  border-radius: 20px;
  white-space: nowrap;
  flex-shrink: 0;
}

.subsection-title {
  font-size: 1.25rem;
  font-weight: 500;
  color: #1a1a18;
  margin: 20px 0 12px;
}

.course-group {
  margin-bottom: 16px;
}

.course-group__label {
  font-size: 0.875rem;
  color: #888780;
  margin-bottom: 8px;
}

.course-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.course-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 1rem;
  color: #444441;
  background: #f8f8f6;
  border: 0.5px solid #e0dfd9;
  border-radius: 20px;
  padding: 5px 13px;
}

.course-chip--linked {
  color: #1b3a6b;
}
.course-chip--linked:hover {
  border-color: #1b3a6b;
  background: #e8edf7;
}

.course-chip__arrow {
  font-size: 0.8125rem;
  color: #888780;
}

.note-box {
  font-size: 1rem;
  color: #444441;
  line-height: 1.7;
  background: #f8f8f6;
  border: 0.5px solid #e0dfd9;
  border-radius: 8px;
  padding: 12px 14px;
}
.note-box strong {
  color: #1b3a6b;
  font-weight: 500;
}

.lab-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 8px;
}

.lab-info-card {
  border: 0.5px solid #e0dfd9;
  border-radius: 8px;
  padding: 14px 16px;
}

.lab-info-card__label {
  font-size: 0.875rem;
  color: #888780;
  margin-bottom: 4px;
}

.lab-info-card__value {
  font-size: 1.125rem;
  color: #1a1a18;
  font-weight: 500;
}

.topic-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.topic-list__item {
  font-size: 1rem;
  color: #444441;
  line-height: 1.6;
  padding: 8px 12px;
  background: #f8f8f6;
  border-radius: 8px;
  border-left: 2px solid #1b3a6b;
}

.contact-note {
  font-size: 1rem;
  color: #444441;
  line-height: 1.8;
  margin: 18px 0 12px;
}

.contact-button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 1rem;
  color: white;
  background: #1b3a6b;
  padding: 8px 18px;
  border-radius: 20px;
}
.contact-button:hover {
  background: #2a5298;
}

.thesis-list {
  list-style: none;
  border-top: 0.5px solid #e0dfd9;
}

.thesis-item {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 0.5px solid #e0dfd9;
}

.thesis-item__year {
  font-size: 0.9375rem;
  color: #888780;
  min-width: 42px;
  flex-shrink: 0;
}

.thesis-item__body {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
}

.thesis-item__title {
  font-size: 1rem;
  color: #1a1a18;
  line-height: 1.5;
}

.thesis-item__degree {
  font-size: 0.8125rem;
  padding: 1px 7px;
  border-radius: 20px;
  background: #f0efeb;
  color: #444441;
  flex-shrink: 0;
}

.thesis-item__pdf {
  font-size: 0.875rem;
  color: #1b3a6b;
  padding: 3px 10px;
  border: 0.5px solid #e0dfd9;
  border-radius: 20px;
  white-space: nowrap;
  flex-shrink: 0;
}
.thesis-item__pdf:hover {
  border-color: #1b3a6b;
}

.phd-intro {
  font-size: 1rem;
  color: #1a1a18;
  line-height: 1.9;
  margin-bottom: 4px;
}

.profile {
  background: #1b3a6b;
  padding: 32px 28px;
  display: flex;
  gap: 22px;
  align-items: flex-start;
}

.profile__photo {
  width: 92px;
  height: 92px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 0.5px solid rgba(255, 255, 255, 0.2);
  overflow: hidden;
}
.profile__photo span {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.4);
  text-align: center;
  line-height: 1.4;
}
.profile__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile__info {
  flex: 1;
  padding-top: 2px;
}

.profile__name {
  font-size: 1.75rem;
  font-weight: 500;
  color: white;
  margin-bottom: 2px;
}

.profile__name-en {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 12px;
}

.profile__title {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.7;
}

.profile__degree {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 4px;
}

.about-lead {
  font-size: 1rem;
  color: #1a1a18;
  line-height: 1.9;
}

.timeline {
  list-style: none;
}

.timeline__item {
  display: flex;
  gap: 16px;
  padding: 9px 0;
  border-bottom: 0.5px solid #e0dfd9;
}
.timeline__item:last-child {
  border-bottom: none;
}

.timeline__year {
  font-size: 0.875rem;
  color: #888780;
  white-space: nowrap;
  min-width: 100px;
  flex-shrink: 0;
}

.timeline__role {
  font-size: 1rem;
  color: #1a1a18;
  line-height: 1.5;
}

.timeline-note {
  font-size: 0.875rem;
  color: #888780;
  margin-top: 10px;
}
.timeline-note a {
  color: #1b3a6b;
}
.timeline-note a:hover {
  text-decoration: underline;
}

.society-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.society-chip {
  font-size: 0.9375rem;
  color: #1a1a18;
  background: #f8f8f6;
  border: 0.5px solid #e0dfd9;
  border-radius: 20px;
  padding: 4px 12px;
}

.ext-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.ext-link {
  font-size: 1rem;
  color: #1b3a6b;
  border: 0.5px solid #e0dfd9;
  border-radius: 20px;
  padding: 5px 14px;
}
.ext-link:hover {
  border-color: #1b3a6b;
  background: #e8edf7;
}

.contact-box {
  background: #f8f8f6;
  border: 0.5px solid #e0dfd9;
  border-radius: 8px;
  padding: 16px 18px;
}

.contact-box__label {
  font-size: 0.875rem;
  color: #888780;
  margin-bottom: 4px;
}

.contact-box__email {
  font-size: 1rem;
  color: #1b3a6b;
  font-weight: 500;
}
.contact-box__email:hover {
  text-decoration: underline;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Meiryo", sans-serif;
  color: #1a1a18;
  background: #ffffff;
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ─── Topbar ─── */
.topbar {
  background: #1b3a6b;
  padding: 7px 24px;
  display: flex;
  justify-content: space-between;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.04em;
}

/* ─── Nav ─── */
.site-nav {
  background: #ffffff;
  border-bottom: 2px solid #1b3a6b;
  padding: 0 24px;
  display: flex;
  align-items: stretch;
}

.nav-brand {
  display: flex;
  align-items: center;
  padding: 13px 0;
  margin-right: 16px;
}

.nav-brand__ja {
  font-size: 1rem;
  font-weight: 500;
  color: #1b3a6b;
  line-height: 1.3;
}

.nav-brand__en {
  font-size: 0.8125rem;
  color: #888780;
}

.nav-links {
  display: flex;
  align-items: stretch;
  margin-left: auto;
}

.nav-links a {
  display: flex;
  align-items: center;
  padding: 0 12px;
  font-size: 0.9375rem;
  color: #888780;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  white-space: nowrap;
}
.nav-links a:hover {
  color: #1b3a6b;
  border-bottom-color: #1b3a6b;
}
.nav-links a.active {
  color: white;
  background: #1b3a6b;
  font-weight: 500;
  border-bottom-color: #1b3a6b;
  border-radius: 4px 4px 0 0;
}
.nav-links a.active:hover {
  color: white;
}
.nav-links a.en-btn {
  color: #888780;
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  margin-left: 4px;
  padding-left: 12px;
  border-left: 0.5px solid #e0dfd9;
}
.nav-links a.en-btn:hover {
  color: #1b3a6b;
  border-bottom-color: transparent;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: stretch;
  gap: 5px;
  width: 30px;
  height: 30px;
  margin-left: auto;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle__bar {
  display: block;
  height: 2px;
  background: #1b3a6b;
  border-radius: 1px;
}

@media (max-width: 640px) {
  .site-nav {
    position: relative;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-links {
    display: none;
    flex-direction: column;
    align-items: stretch;
    margin-left: 0;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #ffffff;
    border-bottom: 2px solid #1b3a6b;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.08);
    z-index: 30;
  }
  .nav-links.is-open {
    display: flex;
  }
  .nav-links a {
    padding: 13px 20px;
    border-bottom: 1px solid #f0efeb;
    margin-bottom: 0;
  }
  .nav-links a.active {
    border-radius: 0;
    border-bottom-color: #f0efeb;
  }
  .nav-links a.en-btn {
    border-left: none;
    border-top: 1px solid #e0dfd9;
    margin-left: 0;
    padding-left: 20px;
  }
}
/* ─── Hero ─── */
.hero {
  background: #1b3a6b;
  padding: 44px 32px 40px;
}

.hero__label {
  font-size: 0.8125rem;
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: 14px;
}

.hero__copy {
  font-size: 2rem;
  font-weight: 500;
  color: white;
  line-height: 1.5;
  margin-bottom: 18px;
}

.hero__body {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.68);
  line-height: 1.9;
  max-width: 500px;
  padding-top: 18px;
  border-top: 0.5px solid rgba(255, 255, 255, 0.1);
}

/* ─── Audience ─── */
.audience {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid #e0dfd9;
}

.audience__card {
  padding: 18px 20px;
  border-right: 1px solid #e0dfd9;
  background: #ffffff;
}
.audience__card:last-child {
  border-right: none;
}
.audience__card:hover {
  background: #f8f8f6;
}

.audience__top {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.audience__icon {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.audience__icon--student {
  background: #e8edf7;
  color: #1b3a6b;
}
.audience__icon--company {
  background: #f0ebe1;
  color: #7a5c1e;
}
.audience__icon--researcher {
  background: #e4f0e8;
  color: #2d6b40;
}

.audience__who {
  font-size: 1.125rem;
  font-weight: 500;
  color: #1a1a18;
}

.audience__desc {
  font-size: 1rem;
  color: #888780;
  line-height: 1.65;
  margin-bottom: 10px;
}

.audience__links {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.audience__link {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 1rem;
  color: #888780;
  padding: 5px 8px;
  border-radius: 8px;
  border: 1px solid #e0dfd9;
}
.audience__link:hover {
  color: #1b3a6b;
  border-color: #1b3a6b;
}

.audience__link-simple {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 1rem;
  color: #1b3a6b;
  margin-top: 8px;
}
.audience__link-simple a {
  color: #1b3a6b;
}

@media (max-width: 640px) {
  .audience {
    grid-template-columns: 1fr;
  }
  .audience__card {
    border-right: none;
    border-bottom: 1px solid #e0dfd9;
  }
  .audience__card:nth-child(1) {
    order: 3;
    border-bottom: none;
  }
  .audience__card:nth-child(2) {
    order: 2;
  }
  .audience__card:nth-child(3) {
    order: 1;
  }
}
/* ─── Sections ─── */
.section {
  padding: 26px 24px;
}

.section__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 16px;
}

.section__title {
  font-size: 1.375rem;
  font-weight: 500;
  color: #1a1a18;
}

.section__more {
  font-size: 0.875rem;
  color: #1b3a6b;
}

.divider {
  height: 1px;
  background: #e0dfd9;
}

/* ─── Research ─── */
.research-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.research-card {
  border: 1px solid #e0dfd9;
  border-radius: 12px;
  padding: 16px;
  background: #ffffff;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.research-card__tag {
  display: inline-block;
  font-size: 0.8125rem;
  padding: 2px 9px;
  border-radius: 20px;
  align-self: flex-start;
}
.research-card__tag--sw {
  background: #e4f0e8;
  color: #2d6b40;
}
.research-card__tag--th {
  background: #e8edf7;
  color: #1b3a6b;
}
.research-card__tag--ma {
  background: #f0ebe1;
  color: #7a5c1e;
}
.research-card__tag--other {
  background: #eeeeec;
  color: #666663;
}

.research-card__title {
  font-size: 1.125rem;
  font-weight: 500;
  color: #1a1a18;
  line-height: 1.4;
}

.research-card__desc {
  font-size: 1rem;
  color: #888780;
  line-height: 1.8;
  flex: 1;
}

.research-card__refs {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  padding-top: 10px;
  border-top: 1px solid #e0dfd9;
  margin-top: auto;
}

.research-card__ref {
  font-size: 0.875rem;
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid #e0dfd9;
  color: #1b3a6b;
}
.research-card__ref:hover {
  background: #f8f8f6;
}

@media (max-width: 640px) {
  .research-grid {
    grid-template-columns: 1fr;
  }
}
/* ─── Publications (home preview) ─── */
.pub-list {
  list-style: none;
}

.pub-item {
  display: flex;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid #e0dfd9;
  align-items: flex-start;
}
.pub-item:last-child {
  border-bottom: none;
}

.pub-item__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 6px;
}
.pub-item__dot--sw {
  background: #2d6b40;
}
.pub-item__dot--th {
  background: #1b3a6b;
}
.pub-item__dot--ma {
  background: #7a5c1e;
}
.pub-item__dot--other {
  background: #666663;
}

.pub-item__main {
  flex: 1;
  min-width: 0;
}

.pub-item__title {
  font-size: 1rem;
  color: #1a1a18;
  line-height: 1.5;
  margin-bottom: 3px;
}
.pub-item__title a {
  color: #1b3a6b;
}
.pub-item__title a:hover {
  text-decoration: underline;
}

.pub-item__meta {
  font-size: 0.875rem;
  color: #888780;
}

.pub-item__venue {
  display: inline-block;
  font-size: 0.8125rem;
  padding: 1px 7px;
  background: #f0efeb;
  border-radius: 20px;
  color: #888780;
  margin-left: 5px;
}

/* ─── Footer ─── */
.site-footer {
  background: #1b3a6b;
  padding: 22px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.footer__info {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.9;
}
.footer__info strong {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  display: block;
  margin-bottom: 2px;
}

.footer__links {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.footer__link {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.45);
  display: flex;
  align-items: center;
  gap: 3px;
}
.footer__link:hover {
  color: rgba(255, 255, 255, 0.8);
}
.footer__link--en {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 4px 12px;
  border-radius: 20px;
}

/* ─── Page hero (sub pages) ─── */
.page-hero {
  background: #1b3a6b;
  padding: 36px 32px 32px;
}

.page-hero__title {
  font-size: 1.75rem;
  font-weight: 500;
  color: white;
  margin-bottom: 10px;
}

.page-hero__desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.8;
  max-width: 480px;
  margin-bottom: 18px;
}

.page-hero__links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.page-hero__db-link {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  border: 0.5px solid rgba(255, 255, 255, 0.25);
  padding: 4px 12px;
  border-radius: 20px;
}
.page-hero__db-link:hover {
  color: white;
  border-color: rgba(255, 255, 255, 0.6);
}

/*# sourceMappingURL=main.css.map */