/* Project-focused homepage and a separate personal About page. */
.hero { padding-top: 48px; padding-bottom: 64px; }
.hero-description { max-width: 490px; }
.hero-actions { flex-wrap: wrap; gap: 18px 28px; }
.cv-link { margin-top: 22px; }
.file-label { font-family: var(--mono); font-size: 11px; color: var(--muted); border: 1px solid var(--line); padding: 2px 5px; border-radius: 3px; }
.hero-footnote { margin-top: 28px; }
.certificate-section { padding-block: 44px; border-bottom: 1px solid var(--line); scroll-margin-top: 20px; }
.certificate-heading { display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.certificate-heading h2 { font-size: 26px; letter-spacing: -.7px; }
.certificate-list { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; margin-top: 25px; }
.certificate-list article { border-left: 2px solid #b65a48; padding-left: 18px; }
.certificate-list h3 { font-size: 19px; letter-spacing: -.35px; margin-top: 7px; }
.certificate-list p { font-size: 14px; color: var(--muted); margin-top: 7px; }
.work-section { padding-block: 70px; }
.project-card .project-links { gap: 20px; }
.compact-case-study { margin-top: 40px; padding-top: 6px; border-top: 1px solid var(--line); }
.compact-case-study > .project-intro { margin-top: 30px; gap: 40px; }
.project-highlights { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-top: 32px; }
.project-highlights article { padding-top: 17px; border-top: 1px solid #c4ccd1; }
.project-highlights .mono-label { color: #a33c2b; font-size: 12px; }
.project-highlights h4 { font-size: 21px; line-height: 1.3; letter-spacing: -.4px; margin: 12px 0; }
.project-highlights p { color: var(--muted); font-size: 16px; line-height: 1.75; }
.research-details { margin-top: 30px; border-top: 1px solid var(--line); padding-top: 18px; }
.research-details summary { cursor: pointer; font-size: 14px; font-weight: 600; color: #47535c; width: fit-content; padding: 5px 0; }
.research-details[open] summary { margin-bottom: 20px; }
.research-details .model-explorer { padding: 28px; }
.research-details .model-explorer-heading h3 { font-size: 27px; }
.research-details .model-panel h4 { font-size: 22px; }
.research-details .project-resources { gap: 20px; }
.contact-section { padding-block: 64px; }
.nav a[aria-current="page"]::after { right: 0; background: #d74733; }
.mobile-nav a[aria-current="page"] { color: #a33c2b; }
.brief-experience { padding-block: 48px 64px; border-top: 1px solid var(--line); }
.brief-experience h2 { font-size: 34px; letter-spacing: -1px; }
.experience-summary { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; margin-top: 32px; }
.experience-summary article { border-top: 1px solid #bfc7cc; padding-top: 18px; }
.experience-summary .experience-role { font-family: var(--mono); color: #a33c2b; font-size: 11px; letter-spacing: .35px; line-height: 1.7; }
.experience-summary h3 { font-size: 24px; margin-block: 12px; }
.experience-summary article > p:last-child { font-size: 15px; color: var(--muted); line-height: 1.8; }
.experience-summary .employer-detail { font-size: 13px; color: #47535c; margin: -4px 0 12px; }
.experience-cv { font-size: 14px; color: var(--muted); margin-top: 28px; }
.experience-cv .text-link { gap: 6px; }
.contact-bottom > div { flex-wrap: wrap; }
.about-hero { display: grid; grid-template-columns: 1.15fr 1fr; gap: 72px; align-items: center; padding-block: 56px 72px; }
.about-introduction h1 { font-size: clamp(60px, 6vw, 86px); letter-spacing: -4px; }
.about-introduction > p:not(.eyebrow) { max-width: 560px; color: var(--muted); line-height: 1.85; }
.about-introduction > p.about-opening { font-family: var(--display); color: var(--ink); font-size: 23px; letter-spacing: -.5px; line-height: 1.55; margin-bottom: 20px; }
.about-profile { background: var(--dark); color: #f5f6f6; border-radius: 8px; padding: 32px; }
.about-profile > .eyebrow { color: #adb4b8; }
.profile-monogram { font-family: var(--display); font-weight: 700; font-size: 108px; letter-spacing: -9px; line-height: 1; margin: 30px 0 20px; }
.profile-monogram > span { color: var(--accent); }
.profile-caption { font-family: var(--display); font-size: 26px; letter-spacing: -.6px; line-height: 1.3; }
.profile-facts { margin: 28px 0 0; }
.profile-facts > div { padding-block: 18px; border-top: 1px solid #3d464d; }
.profile-facts > div:last-child { padding-bottom: 0; }
.profile-facts dt { font-family: var(--mono); font-size: 11px; color: #ff9c88; letter-spacing: .7px; margin-bottom: 7px; }
.profile-facts dd { margin: 0; font-size: 15px; line-height: 1.6; }
.profile-facts dd > span { font-size: 13px; color: #adb4b8; }
.about-story { display: grid; grid-template-columns: 1fr 1.2fr; gap: 72px; padding-block: 64px; border-block: 1px solid var(--line); }
.about-story h2 { font-size: 36px; line-height: 1.25; letter-spacing: -1.2px; margin-top: 24px; }
.about-story-copy p { color: var(--muted); font-size: 16px; line-height: 1.85; }
.about-story-copy p + p { margin-top: 20px; }
.about-story-copy > .text-link { margin-top: 24px; }
.about-connect { padding-block: 64px; }
.about-connect h2 { font-size: 34px; letter-spacing: -1px; margin-top: 20px; }
.about-connect > div > p:last-child { font-size: 16px; color: var(--muted); margin-top: 16px; }
.social-links { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; margin-top: 32px; }
.social-links > a { display: flex; justify-content: space-between; align-items: center; gap: 16px; border: 1px solid var(--line); border-radius: 5px; background: #fff; padding: 20px 22px; transition: border-color .2s, background .2s; }
.social-links > a:hover { border-color: #aa6b5f; background: #faf7f6; }
.social-links strong { font-family: var(--display); font-size: 20px; font-weight: 500; }
.social-links > a > span > span { display: block; color: var(--muted); font-size: 13px; margin-top: 5px; }
.social-links > a > span:last-child { color: #a33c2b; font-size: 23px; }
.about-email { margin-top: 28px; overflow-wrap: anywhere; }
/* Developer portfolio refinements: clear hierarchy, useful previews, quiet motion. */
.header { position: sticky; top: 0; height: 84px; background: #f5f6f6ed; backdrop-filter: blur(14px); border-bottom: 1px solid #d9dddf80; }
.skip-link:focus { position: fixed; }
.reading-progress { position: fixed; inset: 0 0 auto; z-index: 30; height: 2px; background: #d74733; transform: scaleX(var(--progress, 0)); transform-origin: left; pointer-events: none; }
.nav a[aria-current="location"]::after { right: 0; background: #d74733; }
.mobile-nav a[aria-current="location"] { color: #a33c2b; }
.heading-dot { color: #d74733; }
.section-description { font-size: 16px; color: var(--muted); margin-top: 18px; max-width: 52ch; }
.hero h1 { font-weight: 500; }
.project-visual { border-radius: 12px; }
.button { gap: 12px; }
.link-arrow { display: inline-block; flex-shrink: 0; font-size: 17px; line-height: 1; transition: transform .2s ease; }
@media (hover: hover) and (prefers-reduced-motion: no-preference) {
  body:not(.motion-paused) a:hover > .link-arrow { transform: translate(3px, -1px); }
}
@media (prefers-reduced-motion: no-preference) {
  body:not(.motion-paused) a:focus-visible > .link-arrow { transform: translate(3px, -1px); }
}
.project-collection { gap: 26px; margin-top: 34px; }
.project-card { grid-template-columns: minmax(240px, .95fr) minmax(0, 1.25fr); gap: 0; padding: 0; border-radius: 12px; overflow: hidden; align-items: stretch; }
.project-card.without-preview { grid-template-columns: 1fr; }
.project-preview { display: grid; align-items: center; background: #15191c; min-width: 0; }
.project-preview img { width: 100%; height: auto; aspect-ratio: 26 / 17; object-fit: contain; display: block; }
.project-card-body { min-width: 0; padding: 30px; }
.project-card-topline { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; align-items: baseline; margin-bottom: 20px; }
.project-card .project-number { font-size: 11px; letter-spacing: .5px; padding: 0; white-space: nowrap; }
.project-card .project-card-meta { font-size: 11px; margin: 0; }
.project-card h3 { font-size: 30px; letter-spacing: -.8px; line-height: 1.2; }
.project-card-body > p { color: var(--muted); line-height: 1.8; font-size: 16px; margin-top: 16px; max-width: 58ch; }
.project-card .tags { margin-top: 20px; }
.project-card .tags span { font-size: 12px; border: 0; background: #eef1f2; padding: 5px 10px; color: #47535c; }
.project-card .project-links { padding-top: 20px; margin-top: 22px; border-top: 1px solid var(--line); gap: 20px; }
.project-card .text-link { gap: 6px; }
.compact-case-study > .project-intro { border-top: 0; padding-top: 0; }
.research-details summary { list-style: none; display: flex; align-items: center; gap: 10px; }
.research-details summary::-webkit-details-marker { display: none; }
.research-details summary::before { content: '+'; color: #a33c2b; font-family: var(--mono); font-size: 21px; line-height: 1; width: 20px; text-align: center; flex-shrink: 0; }
.research-details[open] summary::before { content: '−'; }
.certificate-section { border-top: 1px solid var(--line); border-bottom: 0; }
.about-connect .social-links > a { border-radius: 8px; }
@media (max-width: 800px) {
  .header { height: 72px; }
  .project-card { grid-template-columns: 1fr; padding: 0; gap: 0; }
  .project-preview img { max-width: 520px; margin-inline: auto; }
  .project-card-body { padding: 24px; }
  .project-card h3 { font-size: 26px; }
  .project-card-topline { margin-bottom: 16px; }
  .section-description { font-size: 15px; }
  .hero { padding-top: 30px; padding-bottom: 44px; gap: 32px; }
  .hero-description { font-size: 16px; }
  .hero-actions { gap: 18px 24px; }
  .hero-footnote { margin-top: 26px; }
  .certificate-section { padding-block: 32px; }
  .certificate-heading { display: block; }
  .certificate-heading h2 { font-size: 25px; margin-top: 12px; }
  .certificate-list { grid-template-columns: 1fr; gap: 24px; }
  .certificate-list h3 { font-size: 19px; }
  .work-section { padding-block: 48px; }
  .compact-case-study { margin-top: 30px; }
  .compact-case-study > .project-intro { gap: 20px; margin-top: 24px; }
  .project-highlights { grid-template-columns: 1fr; gap: 22px; margin-top: 26px; }
  .project-highlights h4 { margin-block: 9px; }
  .research-details .model-explorer { padding: 22px 18px; }
  .contact-section { padding-block: 48px; }
  .brief-experience { padding-block: 36px 48px; }
  .brief-experience h2 { font-size: 30px; }
  .brief-experience .section-top { flex-wrap: wrap; }
  .experience-summary { grid-template-columns: 1fr; gap: 24px; margin-top: 26px; }
  .experience-summary h3 { margin-block: 9px; }
  .about-hero { grid-template-columns: 1fr; gap: 36px; padding-block: 32px 48px; }
  .about-introduction h1 { font-size: clamp(52px, 10.5vw, 74px); letter-spacing: -3px; }
  .about-introduction > p.about-opening { font-size: 21px; }
  .about-profile { padding: 26px; }
  .profile-monogram { font-size: 88px; margin-block: 24px 16px; }
  .profile-caption { font-size: 24px; }
  .about-story { grid-template-columns: 1fr; gap: 28px; padding-block: 44px; }
  .about-story h2 { font-size: 30px; margin-top: 18px; }
  .about-connect { padding-block: 44px; }
  .about-connect h2 { font-size: 30px; }
  .social-links { grid-template-columns: 1fr; gap: 14px; margin-top: 26px; }
  .social-links > a { padding: 18px 20px; }
}
@media (max-width: 380px) {
  .project-card-body { padding: 22px 18px; }
  .project-card h3 { font-size: 24px; }
}
@media print {
  .header { position: static; }
  .reading-progress { display: none; }
}