:root {
  --ink: #17202a;
  --muted: #64748b;
  --line: #d9e1e8;
  --paper: #f7f9fb;
  --white: #ffffff;
  --accent: #0f766e;
  --accent-strong: #155e75;
  --warm: #c2410c;
  --shadow: 0 24px 70px rgba(23, 32, 42, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Noto Sans JP", system-ui, sans-serif;
  background: var(--paper);
  line-height: 1.75;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 18px;
  min-height: 58px;
  padding: 12px clamp(18px, 4vw, 56px);
  background: rgba(247, 249, 251, 0.86);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(18px);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.site-header.is-scrolled {
  border-color: rgba(217, 225, 232, 0.9);
  box-shadow: 0 8px 28px rgba(23, 32, 42, 0.08);
}

.brand,
.nav,
.hero-actions,
.contact-panel {
  display: flex;
  align-items: center;
}

.brand {
  flex: 0 0 auto;
  gap: 0;
  font-weight: 900;
  letter-spacing: 0;
}

.brand-mark {
  width: 34px;
  height: 34px;
  object-fit: cover;
  object-position: center top;
  background: var(--line);
  border-radius: 8px;
}

.nav {
  justify-content: flex-start;
  gap: clamp(12px, 2vw, 22px);
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.nav a:hover {
  color: var(--accent);
}

.hero {
  display: grid;
  grid-template-columns: minmax(240px, 0.72fr) minmax(420px, 1.28fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: center;
  min-height: calc(100svh - 58px);
  padding: clamp(20px, 3vw, 36px) clamp(18px, 4vw, 56px);
}

.hero-media {
  position: relative;
  min-height: clamp(310px, 56vh, 460px);
  overflow: hidden;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.24), transparent 42%),
    linear-gradient(315deg, rgba(194, 65, 12, 0.2), transparent 44%),
    #dfe9ed;
  box-shadow: var(--shadow);
}

.hero-media::before,
.hero-media::after {
  position: absolute;
  z-index: 1;
  content: "";
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.95);
  border-radius: 8px;
}

.hero-media::before {
  top: 44px;
  left: 32px;
  width: 46%;
  height: 58%;
  transform: rotate(-7deg);
}

.hero-media::after {
  right: 28px;
  bottom: 36px;
  width: 44%;
  height: 48%;
  transform: rotate(6deg);
}

.portrait-photo {
  position: absolute;
  inset: 50% auto auto 50%;
  z-index: 2;
  width: min(70%, 270px);
  aspect-ratio: 0.76;
  object-fit: cover;
  object-position: center top;
  border: 10px solid rgba(255, 255, 255, 0.92);
  border-radius: 8px;
  transform: translate(-50%, -50%);
  box-shadow: 0 18px 54px rgba(23, 32, 42, 0.3);
}

.portrait-caption {
  position: absolute;
  right: 26px;
  bottom: 22px;
  z-index: 3;
  margin: 0;
  padding: 8px 12px;
  color: var(--white);
  font-family: Inter, sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  background: rgba(23, 32, 42, 0.78);
  border-radius: 8px;
}

.hero-copy {
  max-width: 840px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-family: Inter, "Noto Sans JP", sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 14px;
  font-size: clamp(2.9rem, 6.7vw, 5.7rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(1.65rem, 3.6vw, 3rem);
  line-height: 1.1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.2rem;
  line-height: 1.35;
}

h4 {
  margin: 0 0 8px;
  font-size: 1.02rem;
  line-height: 1.45;
}

h4 a {
  text-decoration: underline;
  text-decoration-color: rgba(15, 118, 110, 0.3);
  text-underline-offset: 4px;
}

h4 a:hover {
  color: var(--accent-strong);
  text-decoration-color: currentColor;
}

.lead {
  max-width: 620px;
  margin-bottom: 14px;
  color: #354152;
  font-size: clamp(0.98rem, 1.45vw, 1.15rem);
  font-weight: 500;
}

.quick-profile {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 0 0 14px;
}

.quick-profile div {
  padding: 10px 12px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.quick-profile dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.quick-profile dd {
  margin: 4px 0 0;
  font-size: 0.86rem;
  font-weight: 800;
  line-height: 1.45;
}

.hero-highlights {
  margin-bottom: 14px;
}

.hero-highlights h2 {
  margin-bottom: 8px;
  font-size: 1rem;
}

.highlight-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.highlight-list article {
  min-height: 98px;
  padding: 12px;
  background: #edf4f2;
  border: 1px solid #c9ddd8;
  border-radius: 8px;
}

.highlight-list time {
  display: inline-block;
  margin-bottom: 6px;
  color: var(--warm);
  font-family: Inter, sans-serif;
  font-size: 0.82rem;
  font-weight: 800;
}

.highlight-list p {
  margin: 0;
  color: #344256;
  font-size: 0.86rem;
  font-weight: 700;
  line-height: 1.5;
}

.highlight-list a {
  text-decoration: underline;
  text-decoration-color: rgba(15, 118, 110, 0.3);
  text-underline-offset: 3px;
}

.highlight-list a:hover {
  color: var(--accent-strong);
  text-decoration-color: currentColor;
}

.hero-actions {
  gap: 12px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 800;
}

.button.primary {
  color: var(--white);
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}

.button.secondary {
  color: var(--ink);
  background: var(--white);
}

.section {
  padding: clamp(52px, 8vw, 96px) clamp(18px, 4vw, 56px);
}

.section-heading {
  max-width: 860px;
  margin-bottom: clamp(22px, 4vw, 40px);
}

.profile-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.9fr);
  gap: clamp(24px, 5vw, 64px);
}

.profile-main {
  max-width: 760px;
  color: #344256;
  font-size: clamp(0.98rem, 1.35vw, 1.08rem);
}

.profile-main p:last-child,
.achievement-item p {
  margin-bottom: 0;
}

.profile-facts {
  margin: 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.profile-facts div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 14px;
  padding: 16px;
  border-bottom: 1px solid var(--line);
}

.profile-facts div:last-child {
  border-bottom: 0;
}

.profile-facts dt {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.profile-facts dd {
  margin: 0;
  font-weight: 700;
}

.work-section {
  background: var(--white);
}

.timeline-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(18px, 4vw, 40px);
}

.timeline-grid > div {
  padding: clamp(18px, 3vw, 28px);
  background: #f4f7f8;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.timeline {
  display: grid;
  gap: 0;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.timeline li {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.timeline time {
  color: var(--accent-strong);
  font-family: Inter, "Noto Sans JP", sans-serif;
  font-size: 0.92rem;
  font-weight: 800;
}

.timeline span {
  font-weight: 700;
}

.achievement-columns {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  gap: clamp(26px, 5vw, 56px);
}

.achievement-block > h3 {
  margin-bottom: 16px;
  font-size: 1.3rem;
}

.funding-block {
  margin-top: clamp(26px, 5vw, 56px);
}

.funding-block > h3 {
  margin-bottom: 16px;
  font-size: 1.3rem;
}

.achievement-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.achievement-item {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: clamp(16px, 3vw, 34px);
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.achievement-item time {
  color: var(--accent-strong);
  font-family: Inter, sans-serif;
  font-size: 1.02rem;
  font-weight: 800;
}

.achievement-item p,
.timeline-grid p {
  color: var(--muted);
}

.achievement-list.compact .achievement-item {
  grid-template-columns: 120px minmax(0, 1fr);
}

.external-link-row {
  margin-top: 32px;
}

.contact-list {
  display: grid;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  color: rgba(255, 255, 255, 0.86);
  font-family: Inter, "Noto Sans JP", sans-serif;
  font-weight: 700;
  list-style: none;
}

.contact-list a {
  text-decoration: underline;
  text-decoration-color: rgba(255, 255, 255, 0.38);
  text-underline-offset: 4px;
}

.contact-section {
  padding-top: 24px;
}

.contact-panel {
  justify-content: space-between;
  gap: 28px;
  padding: clamp(28px, 5vw, 56px);
  color: var(--white);
  background: var(--ink);
  border-radius: 8px;
}

.contact-panel .eyebrow {
  color: rgba(255, 255, 255, 0.76);
}

.contact-panel .button.primary {
  flex: 0 0 auto;
  background: var(--white);
  color: var(--ink);
  border-color: var(--white);
}

.site-footer {
  padding: 28px clamp(20px, 5vw, 72px) 40px;
  color: var(--muted);
  font-family: Inter, "Noto Sans JP", sans-serif;
  font-size: 0.9rem;
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero,
  .profile-grid,
  .quick-profile,
  .highlight-list,
  .timeline-grid,
  .achievement-columns {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-media {
    min-height: 340px;
    order: 2;
  }

  .hero-copy {
    order: 1;
  }
}

@media (max-width: 560px) {
  .profile-facts div,
  .achievement-item,
  .achievement-list.compact .achievement-item,
  .timeline li {
    grid-template-columns: 1fr;
  }

  .contact-panel {
    align-items: flex-start;
    flex-direction: column;
  }

  .contact-panel .button {
    width: 100%;
  }
}