:root {
  --bg: #050607;
  --bg-soft: #0b0d10;
  --bg-card: #10141a;
  --paper: #f3f7ff;
  --muted: #aeb8c8;
  --muted-dark: #697386;
  --accent: #61a8ff;
  --accent-2: #9bdcff;
  --line: rgba(243, 247, 255, 0.13);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --radius: 28px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(97, 168, 255, 0.14), transparent 32rem),
    radial-gradient(circle at top right, rgba(155, 220, 255, 0.08), transparent 26rem),
    linear-gradient(180deg, #050607 0%, #0b0d10 48%, #050607 100%);
  color: var(--paper);
  overflow-x: hidden;
}

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

.site-shell {
  min-height: 100vh;
}

.container {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(5, 6, 7, 0.78);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0;
  font-weight: 800;
  letter-spacing: -0.04em;
  font-size: 1.08rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 0.92rem;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 13px 20px;
  font-weight: 800;
  font-size: 0.94rem;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
  cursor: pointer;
  border: 1px solid transparent;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--accent);
  color: #03080f;
  box-shadow: 0 18px 48px rgba(97, 168, 255, 0.24);
}

.button-secondary {
  border-color: var(--line);
  color: var(--paper);
  background: rgba(243, 247, 255, 0.04);
}

.hero {
  position: relative;
  padding: 94px 0 70px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

h1 {
  margin: 0;
  max-width: 850px;
  font-size: clamp(3.4rem, 8.4vw, 8.25rem);
  line-height: 0.88;
  letter-spacing: -0.085em;
}

.hero h1 span {
  color: var(--accent);
}

.hero-copy {
  margin: 28px 0 0;
  max-width: 680px;
  color: var(--muted);
  font-size: clamp(1.08rem, 1.7vw, 1.32rem);
  line-height: 1.62;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.profile-card,
.article-card,
.contact-panel,
.image-placeholder {
  border: 1px solid var(--line);
  background:
    linear-gradient(160deg, rgba(243, 247, 255, 0.08), rgba(243, 247, 255, 0.025)),
    rgba(16, 20, 26, 0.82);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.profile-card {
  padding: 28px;
}

.profile-card::before,
.article-card::before,
.contact-panel::before {
  content: "";
  position: absolute;
  inset: -2px;
  background: radial-gradient(circle at 72% 0%, rgba(97, 168, 255, 0.28), transparent 16rem);
  pointer-events: none;
}

.profile-card-content,
.article-card-content,
.contact-panel-content {
  position: relative;
  z-index: 1;
}

.profile-block {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 18px;
  align-items: center;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 22px;
}

.profile-tile {
  width: 84px;
  height: 84px;
  border-radius: 22px;
  background: var(--paper);
  color: #03080f;
  display: grid;
  place-items: center;
  text-align: center;
  font-weight: 900;
  line-height: 0.88;
  font-size: 1.7rem;
  letter-spacing: -0.08em;
}

.profile-card h2 {
  margin: 0 0 6px;
  font-size: 1.55rem;
  letter-spacing: -0.045em;
}

.profile-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.profile-list {
  display: grid;
  gap: 14px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.profile-list li {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}

.profile-list li:last-child {
  border-bottom: 0;
}

.profile-list strong {
  color: var(--paper);
}

section {
  padding: 92px 0;
}

.section-kicker {
  color: var(--accent-2);
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 12px;
}

h2.section-title {
  margin: 0;
  font-size: clamp(2.2rem, 4.7vw, 4.8rem);
  line-height: 0.95;
  letter-spacing: -0.07em;
}

.section-copy {
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.7;
  margin: 0;
}

.article-card {
  padding: 34px;
}

.article-grid,
.feature,
.about-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 28px;
  align-items: center;
}

.article-card h2,
.about-copy h2 {
  margin: 0;
  font-size: clamp(2.2rem, 4.8vw, 5rem);
  line-height: 0.94;
  letter-spacing: -0.08em;
}

.article-card p,
.about-copy p {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.7;
}

.article-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.image-placeholder {
  min-height: 390px;
  padding: 0;
  background: rgba(16, 20, 26, 0.72);
}

.image-placeholder img {
  width: 100%;
  height: 100%;
  min-height: 390px;
  display: block;
  object-fit: cover;
}

.image-wide img {
  object-position: center;
}

.image-portrait img {
  object-position: center top;
}

.clean-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 26px;
}

.clean-list li {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 20px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.clean-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.clean-label {
  color: var(--accent-2);
  font-size: 0.9rem;
  font-weight: 900;
  white-space: nowrap;
}

.clean-list h4,
.bullet-list h4 {
  margin: 0 0 8px;
  font-size: 1.18rem;
  letter-spacing: -0.035em;
}

.clean-list p,
.bullet-list p {
  margin: 0;
  color: var(--muted);
  line-height: 1.62;
}

.feature-main {
  border-left: 2px solid var(--accent);
  padding-left: 28px;
}

.feature-main h3 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 0.96;
  letter-spacing: -0.07em;
}

.feature-main p {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.projects-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 44px;
  align-items: start;
}

.bullet-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 28px;
}

.bullet-list li {
  position: relative;
  padding-left: 34px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.bullet-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.bullet-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 8px rgba(97, 168, 255, 0.10);
}

.about {
  padding-top: 20px;
}

.about-copy {
  border-left: 2px solid var(--accent);
  padding-left: 28px;
}

.contact {
  padding-bottom: 120px;
}

.contact-panel {
  border-radius: calc(var(--radius) + 10px);
  padding: 44px;
}

.contact-panel-content {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 34px;
  align-items: start;
}

.contact-panel h2 {
  margin: 0;
  font-size: clamp(2.4rem, 5vw, 5.4rem);
  line-height: 0.92;
  letter-spacing: -0.08em;
}

.contact-panel p {
  color: var(--muted);
  line-height: 1.65;
  font-size: 1.05rem;
  margin: 18px 0 0;
}

.contact-card {
  border-radius: 24px;
  padding: 22px;
  border: 1px solid var(--line);
  background: rgba(5, 6, 7, 0.48);
  display: grid;
  gap: 14px;
}

.contact-link {
  display: grid;
  grid-template-columns: 52px 1fr auto;
  gap: 14px;
  align-items: center;
  border: 1px solid var(--line);
  background: rgba(243, 247, 255, 0.035);
  border-radius: 18px;
  padding: 12px;
  color: var(--muted);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.contact-link:hover {
  transform: translateY(-2px);
  border-color: rgba(97, 168, 255, 0.52);
  background: rgba(97, 168, 255, 0.08);
}

.contact-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: rgba(97, 168, 255, 0.12);
  border: 1px solid rgba(97, 168, 255, 0.28);
  display: grid;
  place-items: center;
  color: var(--accent-2);
  font-weight: 900;
}

.contact-text strong {
  display: block;
  color: var(--paper);
  margin-bottom: 3px;
}

.contact-button {
  color: #03080f;
  background: var(--accent);
  border-radius: 999px;
  padding: 10px 14px;
  font-weight: 900;
  font-size: 0.82rem;
  white-space: nowrap;
}

footer {
  border-top: 1px solid var(--line);
  padding: 30px 0;
  color: var(--muted-dark);
  font-size: 0.92rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

@media (max-width: 920px) {
  .nav-links {
    display: none;
  }

  .hero-grid,
  .article-grid,
  .feature,
  .projects-grid,
  .about-grid,
  .contact-panel-content {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 64px;
  }

  .profile-card {
    max-width: 620px;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(var(--max), calc(100% - 24px));
  }

  .hero {
    padding: 54px 0 52px;
  }

  section {
    padding: 66px 0;
  }

  .profile-block,
  .clean-list li {
    grid-template-columns: 1fr;
  }

  .article-card,
  .contact-panel {
    padding: 26px;
  }

  .image-placeholder {
    min-height: 280px;
  }

  .contact-link {
    grid-template-columns: 52px 1fr;
  }

  .contact-button {
    grid-column: 1 / -1;
    text-align: center;
  }
}

/* Additions use the existing site's colour variables and preserve its palette. */
html { scroll-padding-top: 100px; }
:focus-visible { outline: 3px solid var(--accent-2); outline-offset: 5px; }
.skip-link { position: absolute; left: 16px; top: -100px; z-index: 50; background: var(--bg); padding: 14px; }
.skip-link:focus { top: 12px; }
.degree-list { display: grid; gap: 8px; text-align: right; }
.profile-list li > span { min-width: 0; }
.profile-list strong { flex-shrink: 0; }
.experience-layout { align-items: start; }
.feature-main h2 { margin: 0 0 18px; font-size: clamp(2rem, 4vw, 4rem); line-height: .96; letter-spacing: -.07em; }
.experience-group + .experience-group { margin-top: 58px; }
.experience-group > h3 { margin: 0 0 28px; font-size: 1.8rem; letter-spacing: -.045em; }
.academic-project { margin-top: 24px; }
.academic-project h5 { margin: 0 0 8px; font-size: 1rem; line-height: 1.5; }
.clean-label { white-space: normal; line-height: 1.5; }
.clean-list p + p { margin-top: 10px; }
.project-meta { display: block; margin-bottom: 10px; color: var(--accent-2); font-size: .85rem; font-weight: 700; }
.project-note { margin: 28px 0 0; color: var(--muted); font-size: .9rem; line-height: 1.6; }
.text-link, .policy-copy a { text-decoration: underline; text-underline-offset: 4px; text-decoration-color: var(--accent); }
.text-link:hover, .policy-copy a:hover { color: var(--accent-2); }
.contact-text { min-width: 0; overflow-wrap: anywhere; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; }
.footer-links a { color: var(--muted); }
.footer-links a:hover { color: var(--paper); }
.policy-main { padding: 72px 0 100px; }
.policy-container { max-width: 820px; }
.policy-main h1 { font-size: clamp(2.7rem, 7vw, 5rem); line-height: 1; letter-spacing: -.06em; }
.policy-date { color: var(--muted); margin: 24px 0 40px; }
.policy-copy { line-height: 1.75; color: var(--muted); overflow-wrap: anywhere; }
.policy-copy h2 { margin: 36px 0 12px; color: var(--paper); font-size: 1.4rem; line-height: 1.3; }
.policy-copy li + li { margin-top: 8px; }
.policy-copy strong { color: var(--paper); }
.mobile-nav { display: none; position: relative; margin-left: auto; }
.mobile-nav summary { cursor: pointer; color: var(--muted); padding: 10px 0; }
.mobile-nav nav { position: absolute; top: 45px; right: 0; min-width: 180px; padding: 14px; border: 1px solid var(--line); border-radius: 18px; background: var(--bg-card); box-shadow: var(--shadow); }
.mobile-nav nav a { display: block; padding: 12px; }
@media (max-width: 920px) { .mobile-nav { display: block; } }
@media (max-width: 640px) {
  .nav-inner { gap: 16px; }
  .nav-inner > .button { padding: 11px 15px; }
  .profile-list li { gap: 12px; }
  .degree-list { font-size: .94rem; }
  .contact-card { padding: 14px; }
  .contact-link { gap: 10px; }
  .policy-main { padding-top: 52px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}