:root {
  --bg: #3b3b3b;
  --paper: rgba(58, 58, 58, 0.94);
  --ink: #f5f5f5;
  --soft-ink: #dddddd;
  --line: rgba(255, 255, 255, 0.18);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
  --radius: 28px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.08), transparent 26%),
    radial-gradient(circle at 85% 15%, rgba(255, 255, 255, 0.05), transparent 18%),
    linear-gradient(180deg, #4a4a4a 0%, var(--bg) 100%);
  font-family: "Yu Mincho", "Hiragino Mincho ProN", "BIZ UDPMincho", serif;
  line-height: 1.8;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.32;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(circle at center, black 62%, transparent 100%);
}

.page-shell {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
  padding: 22px 0 72px;
}

.topbar,
.hero,
.card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  margin-bottom: 18px;
}

.topbar::after,
.hero::after,
.card::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: calc(var(--radius) - 10px);
  pointer-events: none;
}

.topbar__name {
  margin: 0;
  font-size: 0.95rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.topbar__identity {
  display: flex;
  align-items: center;
  gap: 16px;
}

.topbar__photo {
  width: 108px;
  height: 108px;
  object-fit: cover;
  object-position: center;
  border-radius: 22px;
  border: 1px solid var(--line);
}

.topbar__right {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
  align-items: flex-end;
}

.topbar__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: flex-end;
}

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

.topbar__links a {
  display: inline-grid;
  place-items: center;
  color: var(--ink);
  text-decoration: none;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.topbar__icon {
  width: 16px;
  height: 16px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.topbar__nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.92rem;
}

.hero {
  padding: 28px 24px;
}

.hero__eyebrow {
  margin: 0 0 14px;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.hero__title-wrap {
  display: grid;
  gap: 6px;
}

.hero__kanji {
  margin: 0;
  font-size: clamp(1.2rem, 3.2vw, 2.2rem);
  letter-spacing: 0.08em;
  line-height: 1;
}

.hero h1 {
  margin: 0;
  max-width: 12ch;
  font-size: clamp(1.05rem, 2.5vw, 1.8rem);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.hero__lead {
  max-width: 34rem;
  margin: 20px 0 0;
  color: var(--soft-ink);
  font-size: 1rem;
}

.hero__meta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 12px;
}

.hero__meta-links a,
.hero__meta-links span {
  color: var(--soft-ink);
  text-decoration: none;
  font-size: 0.92rem;
}

.hero__meta-links a:first-child {
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.hero__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.topbar__nav a,
.hero__links a,
.link-list a {
  color: var(--ink);
  text-decoration: none;
}

.hero__links a {
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  transition: transform 180ms ease, background 180ms ease;
}

.topbar__links a:hover,
.topbar__links a:focus-visible,
.hero__links a:hover,
.hero__links a:focus-visible,
.link-list a:hover,
.link-list a:focus-visible {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.14);
}

main {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

.card {
  padding: 22px 20px;
}

.card--note {
  background:
    linear-gradient(180deg, rgba(68, 68, 68, 0.96), rgba(54, 54, 54, 0.94));
}

.timeline {
  display: grid;
  gap: 14px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  align-items: start;
}

.timeline-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.timeline-item__meta {
  display: flex;
  align-items: center;
  align-self: center;
  font-size: 0.85rem;
  line-height: 1.45;
  letter-spacing: 0.08em;
  color: var(--soft-ink);
}

.timeline-item__body h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 500;
}

.timeline-item__body p {
  margin-top: 6px;
}

.timeline-item__body a {
  color: var(--ink);
  font-weight: 400;
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.publication-list {
  display: grid;
  gap: 14px;
}

.publication-item {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  align-items: center;
}

.publication-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.publication-item__meta {
  margin: 0;
  display: flex;
  align-items: center;
  font-size: 0.85rem;
  line-height: 1.45;
  color: var(--soft-ink);
}

.publication-item__body h3 {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 500;
  line-height: 1.5;
}

.publication-item__body a {
  color: var(--ink);
  text-decoration: none;
}

.publication-item__authors {
  margin-top: 6px;
  font-size: 0.94rem;
}

.publication-item__authors span {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.publication-item__body p {
  margin-top: 6px;
}

.project-list {
  display: grid;
  gap: 14px;
}

.project-item {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.project-item__year {
  margin: 0;
  font-size: 0.9rem;
  color: var(--soft-ink);
}

.project-item__body h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 500;
  line-height: 1.45;
}

.project-item__body a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.project-item__body a:hover,
.project-item__body a:focus-visible {
  border-bottom-color: var(--ink);
}

.project-item__body p {
  margin-top: 6px;
}

.skills-list {
  display: grid;
  gap: 12px;
}

.skills-item {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  align-items: center;
}

.skills-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.skills-item__label,
.skills-item__value {
  margin: 0;
}

.skills-item__label {
  display: flex;
  align-items: center;
  align-self: center;
  font-size: 0.9rem;
  line-height: 1.45;
  color: var(--soft-ink);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.project-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(72, 72, 72, 0.94);
}

.project-card__date {
  margin: 0 0 6px;
  font-size: 0.85rem;
  color: var(--soft-ink);
}

.project-card h3 {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 500;
}

.project-card__image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  object-position: center;
  margin-top: 12px;
  border-radius: 18px;
  border: 1px solid var(--line);
}

.project-card p + a {
  display: inline-block;
  margin-top: 10px;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.card p {
  margin: 0;
  color: var(--soft-ink);
}

.card p + p {
  margin-top: 14px;
}

.section-heading {
  display: flex;
  align-items: center;
  margin-bottom: 16px;
}

.section-heading h2,
.mini-card h3 {
  margin: 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.mini-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(72, 72, 72, 0.94);
}

.mini-card p {
  margin-top: 8px;
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 20px, 980px);
    padding-top: 18px;
  }

  .topbar {
    flex-wrap: wrap;
    padding: 14px 16px;
  }

  .topbar__right {
    width: 100%;
    align-items: flex-start;
  }

  .topbar__nav {
    justify-content: flex-start;
  }

  .hero {
    padding: 24px 18px 22px;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .publication-item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .project-item {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .skills-item {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }
}