:root {
  --ink: #17212b;
  --muted: #52606d;
  --line: #d9e0e7;
  --paper: #ffffff;
  --wash: #f3f6f8;
  --blue: #245a8d;
  --blue-dark: #19456f;
  --max-width: 1080px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  color-scheme: light;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}

a { color: var(--blue); }
a:hover { color: var(--blue-dark); }
a:focus-visible { outline: 3px solid #8cb6d9; outline-offset: 3px; }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 10;
  padding: 8px 12px;
  background: var(--ink);
  color: #fff;
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

.hero {
  min-height: min(760px, 100svh);
  display: grid;
  align-items: center;
  background: var(--wash);
  border-bottom: 1px solid var(--line);
}

.hero__inner,
.section,
.footer__inner {
  width: min(calc(100% - 48px), var(--max-width));
  margin-inline: auto;
}

.hero__inner { padding-block: 42px; }

.identity {
  display: flex;
  align-items: center;
  gap: 24px;
}
.identity > div:last-child,
.job__body { min-width: 0; }

.avatar {
  flex: 0 0 104px;
  width: 104px;
  height: 104px;
  display: block;
  border-radius: 50%;
  object-fit: cover;
  background: var(--wash);
  border: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 3px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p { max-width: 72ch; }

h1 {
  margin: 0;
  font-size: clamp(38px, 6vw, 62px);
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.role {
  margin: 8px 0 0;
  color: var(--blue);
  font-size: clamp(18px, 2.3vw, 24px);
  font-weight: 650;
}
.role span { color: var(--muted); font-weight: 500; }

.summary {
  margin: 26px 0 22px;
  max-width: 66ch;
  font-size: clamp(17px, 2vw, 20px);
}

.primary-contacts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.contact,
.download,
.demo-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border: 1px solid var(--blue);
  border-radius: 4px;
  padding: 9px 14px;
  color: var(--blue);
  font-size: 14px;
  text-decoration: none;
}

.contact--primary {
  background: var(--blue);
  color: #fff;
}
.contact--primary:hover { background: var(--blue-dark); color: #fff; }

.proofs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 26px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.proof {
  min-width: 0;
  padding: 16px 18px;
  color: inherit;
  text-decoration: none;
}
.proof + .proof { border-left: 1px solid var(--line); }
.proof strong { display: block; color: var(--blue); font-size: 21px; line-height: 1.2; }
.proof span { display: block; margin-top: 3px; color: var(--muted); font-size: 13px; }

.hero__secondary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 13px;
}
.download { min-height: 38px; padding: 7px 12px; font-weight: 650; }

.lang-switch {
  position: fixed;
  top: 14px;
  right: 14px;
  z-index: 5;
  padding: 6px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
}
.lang-switch:hover { border-color: var(--blue); color: var(--blue); }

.section-note {
  margin: -8px 0 20px;
  color: var(--muted);
  font-size: 14px;
}

.skills-tags {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}
.skills-tags li {
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--wash);
  font-size: 13px;
  color: var(--ink);
}

.section {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 56px;
  padding-block: 76px;
}

.section--tinted {
  position: relative;
}
.section--tinted::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0 calc(50% - 50vw);
  background: var(--wash);
  border-block: 1px solid var(--line);
}

h2 {
  margin: 0;
  font-size: clamp(27px, 3.2vw, 36px);
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.record-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 13px;
  font-weight: 650;
  text-underline-offset: 3px;
}

.experience-list { border-top: 1px solid var(--line); }
.job {
  display: grid;
  grid-template-columns: 172px minmax(0, 1fr);
  gap: 26px;
  padding-block: 28px;
  border-bottom: 1px solid var(--line);
}
.job__meta time,
.job__meta span { display: block; }
.job__meta time { font-weight: 650; font-size: 14px; }
.job__meta span { margin-top: 4px; color: var(--muted); font-size: 13px; }
.job__body h3 { margin: 0; font-size: 20px; line-height: 1.3; }
.job__body > p { margin: 4px 0 12px; color: var(--muted); }
.job ul { margin: 0; padding-left: 19px; }
.job li + li { margin-top: 7px; }
.text-link { display: inline-block; margin-top: 13px; font-weight: 650; text-underline-offset: 3px; }

.compact-content > p { margin: 0 0 20px; font-size: 18px; }
.demo-links { display: flex; flex-wrap: wrap; gap: 10px; }
.demo-links a { font-weight: 650; }

.demo-links--accent a {
  background: var(--blue);
  color: #fff;
  padding: 12px 20px;
  font-size: 15px;
  border-color: var(--blue);
}
.demo-links--accent a:hover { background: var(--blue-dark); border-color: var(--blue-dark); color: #fff; }

.education-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.education-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.education-list li > a { flex: none; font-size: 12px; font-weight: 700; letter-spacing: 0.06em; }
.education-list li > .cert-links { flex: none; display: flex; gap: 10px; }
.education-list li > .cert-links a { font-size: 12px; font-weight: 700; letter-spacing: 0.06em; }

footer { background: var(--ink); color: #fff; }
.footer__inner { padding-block: 48px; }
.footer__cta { margin: 0 0 14px; font-size: 20px; font-weight: 650; }
.footer__contacts { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.footer__contacts a { color: #cfe2f3; text-underline-offset: 3px; }
.footer__name { margin: 20px 0 0; color: #aeb9c3; font-size: 13px; }

@media (max-width: 760px) {
  .hero { min-height: auto; }
  .hero__inner,
  .section,
  .footer__inner { width: min(calc(100% - 32px), var(--max-width)); }
  .hero__inner { padding-block: 24px 26px; }
  .identity { gap: 14px; align-items: flex-start; }
  .avatar { flex-basis: 64px; width: 64px; height: 64px; font-size: 23px; }
  h1 { font-size: clamp(32px, 10vw, 43px); }
  .role { margin-top: 4px; font-size: 17px; line-height: 1.3; }
  .role span { display: block; }
  .summary { margin: 18px 0 15px; font-size: 16px; line-height: 1.42; }
  .primary-contacts { gap: 7px; }
  .contact { min-height: 42px; padding: 8px 10px; font-size: 13px; }
  .contact strong { font-weight: 650; }
  .proofs { margin-top: 16px; }
  .proof { padding: 11px 9px; }
  .proof strong { font-size: 17px; }
  .proof span { font-size: 11px; line-height: 1.3; }
  .hero__secondary { margin-top: 12px; align-items: flex-start; }
  .download { min-height: 36px; }
  .lang-switch { top: 10px; right: 10px; padding: 5px 11px; font-size: 11px; }
  .section { grid-template-columns: 1fr; gap: 24px; padding-block: 52px; }
  .job { grid-template-columns: 1fr; gap: 10px; padding-block: 24px; }
  .job__meta span { margin-top: 1px; }
  .compact-content > p { font-size: 16px; }
}

@media (max-width: 520px) {
  h1 { font-size: clamp(30px, 9vw, 38px); }
  .primary-contacts { display: grid; grid-template-columns: 1fr 1fr; }
  .contact--primary { grid-column: 1 / -1; }
  .contact { line-height: 1.2; text-align: center; }
  .contact strong { display: block; }
  .proofs { grid-template-columns: 1fr 1fr; }
  .proof:nth-child(3) { grid-column: 1 / -1; border-left: 0; border-top: 1px solid var(--line); }
  .education-list li { align-items: flex-start; }
}

@media print {
  .skip-link { display: none; }
  .hero { min-height: auto; }
  .section { break-inside: avoid; }
}

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