:root {
  --page: #ffffff;
  --text: #171717;
  --muted: #747474;
  --line: #e7e7e7;
  --soft: #f7f7f7;
  --accent: #2166d1;
  --accent-soft: #eef4ff;
  --red: #ff2442;
  --serif: Georgia, "Times New Roman", Times, serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--page);
  scroll-behavior: smooth;
}

body {
  background: var(--page);
  color: var(--text);
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.7;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration: underline;
}

a:focus-visible {
  border-radius: 2px;
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.site-header {
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  border-top: 2px solid #eadde0;
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav-wrap {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1160px;
  min-height: 78px;
  padding: 0 32px;
}

.site-name {
  color: var(--text);
  font-size: 1.28rem;
  font-weight: 700;
}

.site-name:hover {
  text-decoration: none;
}

nav {
  align-items: center;
  display: flex;
  gap: clamp(24px, 3.4vw, 48px);
}

nav a {
  color: var(--text);
  font-size: 1rem;
  padding: 7px 0;
  position: relative;
}

nav a::after {
  background: var(--accent);
  bottom: -11px;
  content: "";
  height: 2px;
  left: 0;
  opacity: 0;
  position: absolute;
  right: 0;
  transform: translateY(3px);
  transition: opacity 160ms ease, transform 160ms ease;
}

nav a:hover,
nav a.active {
  color: var(--accent);
  text-decoration: none;
}

nav a:hover::after,
nav a.active::after {
  opacity: 1;
  transform: translateY(0);
}

main,
footer {
  margin: 0 auto;
  max-width: 1160px;
  padding-left: 32px;
  padding-right: 32px;
}

.section {
  border-top: 1px solid var(--line);
  padding: 66px 0 76px;
  scroll-margin-top: 78px;
}

.overview {
  align-items: center;
  border-top: 0;
  display: grid;
  gap: clamp(48px, 8vw, 110px);
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  min-height: 620px;
  padding-bottom: 98px;
  padding-top: 92px;
}

.section-label {
  color: var(--accent);
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 24px;
}

.overview h1,
.page-intro h1 {
  font-size: clamp(3.2rem, 6.4vw, 5rem);
  letter-spacing: -0.04em;
  line-height: 1;
  margin: 0;
}

.role {
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  font-weight: 700;
  margin: 30px 0 3px;
}

.meta {
  color: var(--muted);
  margin: 0;
}

.introduction {
  font-size: 1.08rem;
  margin: 34px 0 16px;
  max-width: 670px;
}

.text-link {
  font-weight: 700;
}

.overview-figure {
  margin: 0;
}

.overview-figure img {
  border: 1px solid var(--line);
  display: block;
  height: auto;
  width: 100%;
}

.section-heading {
  align-items: baseline;
  display: flex;
  justify-content: space-between;
  margin-bottom: 38px;
}

.section-heading h2 {
  font-size: 1.7rem;
  line-height: 1.2;
  margin: 0;
}

.section-heading p {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0;
}

.card-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.section-card {
  background: var(--page);
  border: 1px solid var(--line);
  color: var(--text);
  display: block;
  min-height: 250px;
  padding: 25px 26px 28px;
  position: relative;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.section-card:hover {
  border-color: var(--accent);
  box-shadow: 0 14px 34px rgba(33, 102, 209, 0.08);
  text-decoration: none;
  transform: translateY(-3px);
}

.card-number {
  color: var(--muted);
  font-size: 0.82rem;
}

.section-card h3 {
  font-size: 1.28rem;
  line-height: 1.35;
  margin: 45px 0 10px;
}

.section-card p {
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.55;
  margin: 0 34px 0 0;
}

.card-arrow {
  bottom: 24px;
  color: var(--accent);
  font-size: 1.2rem;
  position: absolute;
  right: 25px;
}

.timeline {
  border-top: 1px solid var(--line);
}

.timeline-item {
  align-items: baseline;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 30px;
  grid-template-columns: 165px minmax(0, 1fr);
  padding: 25px 0;
}

.timeline-item time {
  color: var(--muted);
}

.timeline-item p {
  margin: 0;
}

.contact-section {
  padding-bottom: 90px;
}

.social-list {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.social-link {
  align-items: center;
  background: var(--text);
  border: 1px solid var(--text);
  border-radius: 10px;
  color: #ffffff;
  display: inline-flex;
  height: 58px;
  justify-content: center;
  transition: opacity 160ms ease, transform 160ms ease;
  width: 58px;
}

a.social-link:hover {
  opacity: 0.8;
  text-decoration: none;
  transform: translateY(-2px);
}

.social-link svg {
  fill: none;
  height: 38px;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 3;
  width: 38px;
}

.social-link .fill-shape,
.social-link .fill-dot {
  fill: currentColor;
  stroke: none;
}

.social-link.xhs {
  background: var(--red);
  border-color: var(--red);
  font-family: Arial, sans-serif;
  font-size: 0.72rem;
  font-weight: 800;
}

.social-link.linkedin {
  background: var(--accent);
  border-color: var(--accent);
  font-family: Arial, sans-serif;
  font-size: 1.55rem;
  font-weight: 700;
}

.social-link.is-pending {
  cursor: not-allowed;
  opacity: 0.38;
}

.contact-email {
  color: var(--muted);
  margin: 30px 0 0;
}

footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
  padding-bottom: 42px;
  padding-top: 24px;
}

footer p {
  margin: 0;
}

/* Detail pages */

.detail-main {
  padding-bottom: 90px;
}

.back-link {
  display: inline-block;
  margin-top: 46px;
}

.page-intro {
  padding: 82px 0 70px;
}

.page-intro .section-label {
  margin-bottom: 20px;
}

.page-intro p:last-child {
  color: var(--muted);
  margin: 24px 0 0;
  max-width: 720px;
}

.detail-grid {
  border-top: 1px solid var(--line);
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding-top: 48px;
}

.detail-card {
  background: var(--soft);
  border: 1px solid var(--line);
  padding: 30px;
}

.detail-card.wide {
  grid-column: 1 / -1;
}

.detail-card .date {
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 700;
  margin: 0 0 13px;
}

.detail-card h2 {
  font-size: 1.3rem;
  line-height: 1.35;
  margin: 0 0 8px;
}

.detail-card h3 {
  color: var(--muted);
  font-size: 1rem;
  font-weight: 400;
  margin: 0 0 18px;
}

.detail-card p {
  margin: 0;
}

.detail-card p + p {
  margin-top: 13px;
}

.detail-card ul {
  margin: 18px 0 0;
  padding-left: 1.15em;
}

.detail-card li + li {
  margin-top: 7px;
}

.metric-row {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 24px;
}

.metric {
  background: var(--page);
  border-left: 3px solid var(--accent);
  padding: 14px 16px;
}

.metric strong,
.metric span {
  display: block;
}

.metric span {
  color: var(--muted);
  font-size: 0.82rem;
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 18px;
}

.skill-list span {
  background: var(--page);
  border: 1px solid #d8d8d8;
  padding: 6px 11px;
}

.empty-blog {
  background: var(--accent-soft);
  border: 1px solid #cedeff;
  padding: 42px;
}

.empty-blog h2 {
  margin: 0 0 8px;
}

.empty-blog p {
  color: var(--muted);
  margin: 0;
}

@media (max-width: 880px) {
  .overview {
    gap: 42px;
    grid-template-columns: minmax(0, 1fr) 300px;
  }

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

@media (max-width: 680px) {
  body {
    font-size: 17px;
  }

  .nav-wrap {
    align-items: flex-start;
    flex-direction: column;
    gap: 9px;
    padding-bottom: 16px;
    padding-top: 14px;
  }

  nav {
    flex-wrap: wrap;
    gap: 7px 24px;
  }

  nav a {
    flex: 0 0 auto;
  }

  nav a::after {
    bottom: -4px;
  }

  main,
  footer,
  .nav-wrap {
    padding-left: 22px;
    padding-right: 22px;
  }

  .section {
    padding: 50px 0 58px;
    scroll-margin-top: 116px;
  }

  .overview {
    grid-template-columns: 1fr;
    min-height: 0;
    padding-bottom: 70px;
    padding-top: 62px;
  }

  .overview-figure {
    max-width: 360px;
    order: -1;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .card-grid,
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .detail-card.wide {
    grid-column: auto;
  }

  .section-card {
    min-height: 220px;
  }

  .timeline-item {
    gap: 5px;
    grid-template-columns: 1fr;
  }

  .page-intro {
    padding: 64px 0 52px;
  }

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  nav a::after,
  .section-card,
  .social-link {
    transition: none;
  }
}