* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --ink: #121820;
  --text: #27313d;
  --muted: #657181;
  --paper: #fbfaf5;
  --blue: #9fcaff;
  --lime: #7ed957;
  --orange: #f7b84b;
  --coral: #4f7cff;
  --white: #ffffff;
  --line: rgba(18, 24, 32, 0.11);
  --soft-shadow: 0 8px 20px rgba(18, 24, 32, 0.08);
  --hard-shadow: 0 10px 0 var(--ink);
  --tint-warm: #fff3dc;
  --tint-cool: #edf8ff;
  --tint-fresh: #f4ffd7;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 98px;
  scrollbar-color: rgba(18, 24, 32, 0.58) transparent;
  scrollbar-width: thin;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--text);
  font-family: "Inter", "Poppins", Arial, sans-serif;
  line-height: 1.6;
  letter-spacing: 0;
  position: relative;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  border: 2px solid var(--paper);
  border-radius: 999px;
  background: rgba(18, 24, 32, 0.5);
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(18, 24, 32, 0.68);
}

::-webkit-scrollbar-button {
  width: 0;
  height: 0;
  display: none;
}

a {
  color: inherit;
}

ul {
  list-style: none;
}

::selection {
  background: rgba(159, 202, 255, 0.62);
}

:focus-visible {
  outline: 3px solid rgba(79, 124, 255, 0.54);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 100;
  padding: 10px 14px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--white);
  color: var(--ink);
  font-weight: 900;
  text-decoration: none;
  box-shadow: 0 6px 0 var(--ink);
  transform: translateY(-150%);
  transition: transform 0.18s ease;
}

.skip-link:focus-visible {
  transform: translateY(0);
}

.background {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.78),
      rgba(251, 250, 245, 0.94)
    ),
    linear-gradient(
      120deg,
      rgba(159, 202, 255, 0.28),
      rgba(164, 207, 56, 0.18) 55%,
      rgba(243, 154, 38, 0.18)
    ),
    radial-gradient(rgba(18, 24, 32, 0.13) 1px, transparent 1px);
  background-size:
    auto,
    auto,
    18px 18px;
}

.site-header,
main,
.footer {
  position: relative;
  z-index: 1;
}

main:focus {
  outline: none;
}

.shell {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(18, 24, 32, 0.08);
  background: rgba(251, 250, 245, 0.88);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.navbar {
  width: min(1120px, calc(100% - 48px));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.nav-brand,
.nav-cv,
.nav-links a,
.nav-toggle,
.btn,
.social-btn,
.card-link,
.cert-card {
  text-decoration: none;
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  color: var(--ink);
}

.nav-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: 2px solid var(--ink);
  border-radius: 12px;
  background: var(--blue);
  color: var(--ink);
  font-family: "Poppins", "Inter", Arial, sans-serif;
  font-size: 1.02rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  box-shadow: 0 5px 0 var(--ink);
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease;
}

.nav-brand:hover .nav-mark,
.nav-brand:focus-visible .nav-mark {
  transform: translateY(3px);
  box-shadow: 0 2px 0 var(--ink);
}

.nav-panel {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-left: auto;
}

.nav-toggle {
  width: 44px;
  height: 44px;
  display: none;
  place-items: center;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--white);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-size: 1rem;
  box-shadow: 0 6px 0 var(--ink);
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    background 0.18s ease;
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  transform: translateY(3px);
  box-shadow: 0 3px 0 var(--ink);
}

.nav-toggle-close {
  display: none;
}

body.nav-open .nav-toggle {
  background: var(--blue);
}

body.nav-open .nav-toggle-open {
  display: none;
}

body.nav-open .nav-toggle-close {
  display: inline-block;
}

.nav-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 6px;
  border: 1px solid rgba(18, 24, 32, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
}

.nav-links a {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border-radius: 999px;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 700;
  transition:
    background 0.2s ease,
    color 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a[aria-current="page"] {
  background: var(--ink);
  color: var(--white);
}

.nav-cv {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 9px;
  padding: 0 15px;
  border: 1px solid rgba(18, 24, 32, 0.13);
  border-radius: 999px;
  background: var(--white);
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 800;
  white-space: nowrap;
  box-shadow: var(--soft-shadow);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.nav-cv:hover,
.nav-cv:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 14px 26px rgba(18, 24, 32, 0.12);
}

.hero {
  min-height: auto;
  display: flex;
  align-items: flex-start;
  padding: 42px 0 50px;
}

.hero-copy {
  max-width: 760px;
}

.eyebrow,
.section-label {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 34px;
  padding: 0 13px;
  border: 1px solid rgba(18, 24, 32, 0.12);
  border-radius: 999px;
  background: var(--white);
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0;
  box-shadow: 0 8px 20px rgba(18, 24, 32, 0.06);
}

.title {
  max-width: 720px;
  margin-top: 18px;
  color: var(--ink);
  font-family: "Poppins", "Inter", Arial, sans-serif;
  font-size: 5.25rem;
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.hero-meta span {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 13px;
  border: 1px solid rgba(18, 24, 32, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 700;
}

.hero-meta i {
  color: var(--coral);
}

.hero-text {
  max-width: 610px;
  margin-top: 22px;
  color: var(--text);
  font-size: 1.18rem;
  text-wrap: pretty;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.btn,
.social-btn {
  border: 2px solid var(--ink);
  color: var(--ink);
  box-shadow: var(--hard-shadow);
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    background 0.18s ease;
}

.btn {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 22px;
  border-radius: 999px;
  background: var(--blue);
  font-size: 1rem;
  font-weight: 900;
}

.social-btn {
  width: 52px;
  height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--white);
  font-size: 1.18rem;
}

.btn:hover,
.btn:focus-visible,
.social-btn:hover,
.social-btn:focus-visible {
  transform: translateY(4px);
  box-shadow: 0 5px 0 var(--ink);
}

.about-section,
.focus-section,
.entry-section,
.skills-section,
.projects-section,
.publications-section,
.certs-section,
.contact-section {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}

.section-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
  margin-top: 24px;
}

.section-grid h2,
.section-heading h2,
.contact-section h2 {
  color: var(--ink);
  font-family: "Poppins", "Inter", Arial, sans-serif;
  font-size: 2.55rem;
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: 0;
  text-wrap: balance;
}

.section-grid p {
  color: var(--text);
  font-size: 1.08rem;
  text-wrap: pretty;
}

.section-grid p + p {
  margin-top: 16px;
}

.inline-link {
  padding: 0 3px;
  background: rgba(159, 202, 255, 0.55);
  box-shadow: inset 0 -2px 0 var(--ink);
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.inline-link:hover {
  background: var(--blue);
}

.section-heading {
  max-width: 620px;
}

.section-heading h2 {
  margin-top: 18px;
}

.focus-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 30px;
}

.focus-card {
  min-height: 238px;
  padding: 22px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 9px 0 var(--ink);
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease;
}

.focus-card:nth-child(2) {
  background: var(--tint-warm);
}

.focus-card:nth-child(3) {
  background: var(--tint-cool);
}

.focus-card:nth-child(4) {
  background: var(--tint-fresh);
}

.card-icon {
  width: 46px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--orange);
  color: var(--ink);
  font-size: 1rem;
}

.focus-card:nth-child(2) .card-icon {
  background: var(--lime);
}

.focus-card:nth-child(3) .card-icon {
  background: var(--blue);
}

.focus-card:nth-child(4) .card-icon {
  background: var(--coral);
  color: var(--white);
}

.focus-card h3 {
  margin-top: 24px;
  color: var(--ink);
  font-size: 1.18rem;
  font-weight: 900;
}

.focus-card p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.95rem;
  text-wrap: pretty;
}

/* ---------- entries: experience & education ---------- */

.entry-list {
  display: grid;
  gap: 16px;
  margin-top: 30px;
}

.entry {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 28px;
  padding: 24px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 9px 0 var(--ink);
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease;
}

.entry:nth-child(4n + 2) {
  background: var(--tint-cool);
}

.entry:nth-child(4n + 3) {
  background: var(--tint-fresh);
}

.entry:nth-child(4n) {
  background: var(--tint-warm);
}

.entry-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.entry-date {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  padding: 0 11px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--blue);
  color: var(--ink);
  font-size: 0.8rem;
  font-weight: 900;
  white-space: nowrap;
}

.entry-meta span:not(.entry-date) {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.entry-role {
  color: var(--ink);
  font-family: "Poppins", "Inter", Arial, sans-serif;
  font-size: 1.24rem;
  font-weight: 900;
  line-height: 1.2;
}

.entry-org {
  margin-top: 4px;
  color: var(--text);
  font-size: 0.98rem;
  font-weight: 800;
}

.entry-text {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.97rem;
  text-wrap: pretty;
}

.entry-points {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.entry-points li {
  position: relative;
  padding-left: 20px;
  color: var(--muted);
  font-size: 0.95rem;
  text-wrap: pretty;
}

.entry-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  border: 2px solid var(--ink);
  border-radius: 2px;
  background: var(--orange);
}

.entry-points strong {
  color: var(--ink);
  font-weight: 800;
}

.entry-points em,
.entry-text em {
  color: var(--text);
}

/* ---------- skills ---------- */

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 30px;
}

.skill-card {
  padding: 22px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 9px 0 var(--ink);
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease;
}

.skill-card:nth-child(3n + 2) {
  background: var(--tint-cool);
}

.skill-card:nth-child(3n) {
  background: var(--tint-fresh);
}

.skill-card h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 1.1rem;
  font-weight: 900;
}

.skill-card h3 i {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--orange);
  font-size: 0.85rem;
}

.skill-card:nth-child(3n + 2) h3 i {
  background: var(--blue);
}

.skill-card:nth-child(3n) h3 i {
  background: var(--lime);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.tag {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  padding: 0 11px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--white);
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 800;
}

/* ---------- projects ---------- */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 30px;
}

.project-card {
  display: flex;
  flex-direction: column;
  padding: 22px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 9px 0 var(--ink);
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease;
}

.project-card:nth-child(4n + 2) {
  background: var(--tint-warm);
}

.project-card:nth-child(4n + 3) {
  background: var(--tint-cool);
}

.project-card:nth-child(4n) {
  background: var(--tint-fresh);
}

.project-type {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  padding: 0 12px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--lime);
  color: var(--ink);
  font-size: 0.74rem;
  font-weight: 900;
  text-transform: uppercase;
}

.project-card:nth-child(4n + 2) .project-type {
  background: var(--orange);
}

.project-card:nth-child(4n + 3) .project-type {
  background: var(--blue);
}

.project-card:nth-child(4n) .project-type {
  background: var(--coral);
  color: var(--white);
}

.project-card h3 {
  margin-top: 18px;
  color: var(--ink);
  font-family: "Poppins", "Inter", Arial, sans-serif;
  font-size: 1.18rem;
  font-weight: 900;
  line-height: 1.2;
}

.project-card p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.95rem;
  text-wrap: pretty;
}

.project-card .tag-list {
  margin-top: 16px;
}

.card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 2px dotted rgba(18, 24, 32, 0.26);
}

.project-card .card-links {
  margin-top: auto;
}

.card-link {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--white);
  color: var(--ink);
  font-size: 0.85rem;
  font-weight: 800;
  transition:
    transform 0.18s ease,
    background 0.18s ease;
}

.card-link:hover,
.card-link:focus-visible {
  transform: translateY(2px);
  background: var(--blue);
}

/* ---------- publications ---------- */

.publications-list {
  display: grid;
  gap: 16px;
  margin-top: 30px;
}

.publication {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 28px;
  padding: 24px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 9px 0 var(--ink);
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease;
}

.publication:nth-child(4n + 2) {
  background: var(--tint-fresh);
}

.publication:nth-child(4n + 3) {
  background: var(--tint-warm);
}

.publication:nth-child(4n) {
  background: var(--tint-cool);
}

.publication-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.publication-year {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  padding: 0 11px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--orange);
  color: var(--ink);
  font-size: 0.8rem;
  font-weight: 900;
}

.publication h3 {
  color: var(--ink);
  font-family: "Poppins", "Inter", Arial, sans-serif;
  font-size: 1.18rem;
  font-weight: 900;
  line-height: 1.25;
  text-wrap: pretty;
}

.publication-authors {
  margin-top: 10px;
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 600;
}

.publication-authors strong {
  color: var(--ink);
  font-weight: 900;
}

.publication-abstract {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.95rem;
  text-wrap: pretty;
}

.publication .card-links {
  border-top: none;
  padding-top: 0;
  margin-top: 16px;
}

/* ---------- certifications ---------- */

.certs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 30px;
}

.cert-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border: 2px solid var(--ink);
  border-radius: 8px;
  background: var(--white);
  color: var(--ink);
  box-shadow: 0 9px 0 var(--ink);
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease;
}

.cert-card:nth-child(4n + 2) {
  background: var(--tint-cool);
}

.cert-card:nth-child(4n + 3) {
  background: var(--tint-fresh);
}

.cert-card:nth-child(4n) {
  background: var(--tint-warm);
}

.cert-icon {
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border: 2px solid var(--ink);
  border-radius: 50%;
  background: var(--white);
  font-size: 1.15rem;
  line-height: 1;
}

.cert-name {
  display: block;
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 900;
  line-height: 1.25;
}

.cert-provider {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

/* ---------- contact & footer ---------- */

.contact-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 64px;
}

.contact-section h2 {
  max-width: 620px;
  margin-top: 18px;
}

.contact-text {
  max-width: 480px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 1.02rem;
  text-wrap: pretty;
}

.contact-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
  padding: 30px 0 42px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.94rem;
}

@media (hover: hover) {
  .focus-card:hover,
  .entry:hover,
  .skill-card:hover,
  .project-card:hover,
  .publication:hover,
  .cert-card:hover {
    transform: translateY(4px);
    box-shadow: 0 5px 0 var(--ink);
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 1024px) {
  .title {
    font-size: 4rem;
  }

  .focus-grid,
  .skills-grid,
  .projects-grid,
  .certs-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .entry,
  .publication {
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 20px;
  }
}

@media (max-width: 780px) {
  html {
    scroll-padding-top: 84px;
  }

  .shell,
  .navbar,
  .footer {
    width: min(1120px, calc(100% - 32px));
  }

  .navbar {
    min-height: auto;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 12px 0;
    align-items: center;
    gap: 12px;
  }

  .nav-brand {
    min-width: 0;
  }

  .nav-toggle {
    display: grid;
  }

  .nav-panel {
    width: 100%;
    max-height: 0;
    grid-column: 1 / -1;
    display: grid;
    gap: 10px;
    margin-left: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(-6px);
    visibility: hidden;
    transition:
      max-height 0.24s ease,
      opacity 0.18s ease,
      transform 0.18s ease,
      visibility 0.18s ease;
  }

  body.nav-open .nav-panel {
    max-height: 360px;
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
  }

  .nav-panel .nav-links,
  .nav-panel .nav-cv {
    width: 100%;
  }

  .nav-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    padding: 8px;
    border-radius: 22px;
  }

  .nav-links a {
    min-width: 0;
    min-height: 42px;
    padding: 0 10px;
    white-space: nowrap;
  }

  .nav-cv {
    justify-content: center;
    min-height: 46px;
  }

  .hero {
    padding: 28px 0 36px;
  }

  .title {
    font-size: 3rem;
    line-height: 1;
  }

  .hero-text {
    font-size: 1.03rem;
  }

  .hero-actions {
    align-items: stretch;
  }

  .hero-actions .btn {
    flex: 1 1 210px;
  }

  .section-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .contact-section {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }

  .contact-section .btn {
    width: min(100%, 360px);
  }

  .section-grid h2,
  .section-heading h2,
  .contact-section h2 {
    font-size: 2rem;
  }

  .focus-grid,
  .skills-grid,
  .projects-grid,
  .certs-grid {
    grid-template-columns: 1fr;
  }

  .focus-card {
    min-height: auto;
    padding: 20px;
  }

  .entry,
  .publication {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 20px;
  }

  .entry-meta,
  .publication-meta {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
  }
}

@media (max-width: 480px) {
  .shell,
  .navbar,
  .footer {
    width: min(1120px, calc(100% - 24px));
  }

  body {
    line-height: 1.55;
  }

  .navbar {
    padding: 14px 0;
    gap: 12px;
  }

  .nav-mark {
    width: 40px;
    height: 40px;
    font-size: 0.95rem;
  }

  .nav-links {
    gap: 4px;
    padding: 5px;
    border-radius: 24px;
  }

  .nav-links a {
    min-height: 38px;
    font-size: 0.84rem;
  }

  .nav-cv {
    min-height: 42px;
    padding: 0 12px;
    font-size: 0.9rem;
  }

  .title {
    font-size: 2.35rem;
  }

  .hero {
    padding: 22px 0 32px;
  }

  .hero-text {
    margin-top: 18px;
  }

  .hero-actions {
    margin-top: 24px;
  }

  .hero-actions .btn,
  .contact-section .btn {
    width: 100%;
    flex-basis: auto;
  }

  .eyebrow,
  .section-label {
    min-height: 32px;
    padding: 0 11px;
    font-size: 0.75rem;
  }

  .about-section,
  .focus-section,
  .entry-section,
  .skills-section,
  .projects-section,
  .publications-section,
  .certs-section,
  .contact-section {
    padding: 40px 0;
  }

  .section-grid h2,
  .section-heading h2,
  .contact-section h2 {
    font-size: 1.82rem;
  }

  .focus-grid,
  .skills-grid,
  .projects-grid,
  .certs-grid {
    gap: 14px;
    margin-top: 26px;
  }

  .focus-card,
  .skill-card,
  .project-card,
  .entry,
  .publication,
  .cert-card {
    padding: 18px;
    box-shadow: 0 7px 0 var(--ink);
  }

  .entry-role,
  .project-card h3,
  .publication h3 {
    font-size: 1.1rem;
  }

  .footer {
    padding: 26px 0 34px;
  }
}