:root {
  --ink: #07111f;
  --ink-soft: #0c1a2b;
  --paper: #ecf1ed;
  --paper-warm: #e5e7df;
  --white: #f7faf7;
  --orange: #ff7657;
  --cyan: #73d5da;
  --line-dark: rgba(235, 241, 237, .17);
  --line-light: rgba(7, 17, 31, .18);
  --max: 1440px;
  --pad: clamp(24px, 5vw, 76px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { display: block; max-width: 100%; }
.lang-en { display: none; }
html[data-language="en"] .lang-ru { display: none; }
html[data-language="en"] .lang-en { display: inline; }
.skip-link {
  position: fixed; top: -80px; left: 16px; z-index: 999;
  background: var(--orange); color: var(--ink); padding: 12px 18px;
  transition: top .2s;
}
.skip-link:focus { top: 16px; }
.noise {
  position: fixed; inset: 0; z-index: 20; pointer-events: none; opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E");
}

.site-header {
  position: absolute; z-index: 15; top: 0; left: 50%; width: 100%; max-width: var(--max);
  transform: translateX(-50%); display: grid; grid-template-columns: 1fr auto 1fr;
  align-items: center; gap: 30px; padding: 24px var(--pad); color: var(--white);
}
.brand { display: flex; align-items: center; gap: 11px; font-size: 14px; font-weight: 800; letter-spacing: .14em; }
.brand-mark {
  display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid currentColor;
  font-family: Georgia, serif; font-size: 18px; font-weight: 400; transform: rotate(-7deg);
}
.brand-dot { color: var(--orange); }
.brand-e, .hero h1 .accent-e { color: #ff5d4a; }
.hero h1 .accent-e { display: inline; -webkit-text-stroke: 0; }
.nav {
  display: flex; align-items: center; gap: 18px; padding: 5px 17px;
  border: 1px solid rgba(255,255,255,.12); background: rgba(7,17,31,.34);
  color: rgba(247,250,247,.66); font-size: 11px; letter-spacing: .08em; text-transform: uppercase;
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
}
.nav a { position: relative; padding: 8px 0; transition: color .2s; }
.nav a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: 3px; height: 1px;
  background: var(--orange); transition: right .22s ease;
}
.nav a:hover, .nav a:focus-visible { color: var(--white); outline: none; }
.nav a:hover::after, .nav a:focus-visible::after { right: 0; }
.header-actions { justify-self: end; display: flex; align-items: center; gap: 12px; }
.language-toggle, .header-cta, .header-print {
  border: 1px solid rgba(255,255,255,.3); color: var(--white); background: transparent;
  min-height: 40px; padding: 0 15px; font-size: 11px; font-weight: 700; letter-spacing: .12em;
  transition: border-color .2s ease, background .2s ease, transform .2s ease;
}
.language-toggle { display: inline-flex; align-items: center; justify-content: center; cursor: pointer; }
.language-toggle.lang-en { display: none; }
html[data-language="en"] .language-toggle.lang-ru { display: none; }
html[data-language="en"] .language-toggle.lang-en { display: inline-flex; }
.header-cta { display: flex; align-items: center; gap: 12px; }
.header-print { display: inline-flex; align-items: center; gap: 9px; cursor: pointer; text-transform: uppercase; }
.header-cta:hover, .language-toggle:hover, .header-print:hover {
  border-color: var(--orange); background: rgba(255,118,87,.08); transform: translateY(-1px);
}
.nav-print-link {
  display: none; border: 0; background: transparent; color: inherit;
  font: inherit; letter-spacing: inherit; text-transform: inherit; text-align: left; cursor: pointer;
}
.mobile-menu-toggle {
  display: none; align-items: center; gap: 10px; min-height: 40px; padding: 0 14px;
  border: 1px solid rgba(255,255,255,.3); background: rgba(7,17,31,.58); color: var(--white);
  cursor: pointer; font-size: 10px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase;
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
}
.mobile-menu-toggle:hover, .mobile-menu-toggle:focus-visible { border-color: var(--orange); outline: none; }
.menu-toggle-icon { position: relative; width: 17px; height: 12px; }
.menu-toggle-icon i {
  position: absolute; left: 0; width: 17px; height: 1px; background: currentColor;
  transition: top .25s ease, transform .25s ease;
}
.menu-toggle-icon i:first-child { top: 3px; }
.menu-toggle-icon i:last-child { top: 9px; }
.mobile-menu-toggle[aria-expanded="true"] .menu-toggle-icon i:first-child { top: 6px; transform: rotate(45deg); }
.mobile-menu-toggle[aria-expanded="true"] .menu-toggle-icon i:last-child { top: 6px; transform: rotate(-45deg); }

.hero {
  position: relative; min-height: 810px; height: min(960px, 100svh); max-height: 980px;
  background: var(--ink); color: var(--white); display: grid; grid-template-columns: 52% 48%;
  overflow: hidden; isolation: isolate;
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -2;
  background:
    radial-gradient(circle at 11% 12%, rgba(115,213,218,.11), transparent 27%),
    linear-gradient(90deg, transparent 0 51.9%, rgba(255,255,255,.08) 52%, transparent 52.1%);
}
.hero-copy {
  width: 100%; max-width: calc(var(--max) * .52); justify-self: end;
  padding: 180px clamp(24px, 4vw, 72px) 120px var(--pad);
  display: flex; flex-direction: column; justify-content: center;
}
.eyebrow, .kicker {
  display: flex; align-items: center; gap: 11px; margin: 0 0 28px;
  font-size: 11px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
}
.status-light { width: 8px; height: 8px; border-radius: 50%; background: #75e29d; box-shadow: 0 0 0 5px rgba(117,226,157,.12); }
.hero h1 { margin: 0 0 22px; font-size: clamp(66px, 7.2vw, 126px); line-height: .76; letter-spacing: -.075em; font-weight: 900; }
.hero h1 span { display: block; }
.hero h1 .outline { color: transparent; -webkit-text-stroke: 1.3px rgba(247,250,247,.5); margin-left: .24em; }
.hero-role { margin: 0 0 25px; color: var(--orange); font-size: clamp(13px, 1.15vw, 17px); font-weight: 800; letter-spacing: .19em; }
.hero-role i { color: rgba(247,250,247,.32); font-style: normal; margin: 0 8px; }
.hero-lead { max-width: 610px; margin: 0; color: rgba(247,250,247,.72); font-size: clamp(18px, 1.5vw, 24px); line-height: 1.45; }
.orcid-profile {
  width: fit-content; display: inline-flex; align-items: center; gap: 10px; margin-top: 24px;
  color: rgba(247,250,247,.7); font-size: 10px; font-weight: 700; letter-spacing: .09em;
  text-transform: uppercase; transition: color .2s;
}
.orcid-profile:hover { color: var(--white); }
.orcid-mark {
  display: inline-grid; place-items: center; width: 25px; height: 25px; border-radius: 50%;
  background: #a6ce39; color: #fff; font-size: 10px; letter-spacing: 0; text-transform: none;
}
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 40px; }
.button {
  min-height: 56px; padding: 0 22px; display: inline-flex; align-items: center; justify-content: center;
  gap: 28px; font-size: 12px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase;
  border: 1px solid rgba(255,255,255,.22); transition: transform .2s, background .2s, border-color .2s;
}
.button-primary { background: var(--orange); border-color: var(--orange); color: var(--ink); }
.button-ghost { background: transparent; color: inherit; cursor: pointer; }
.button:hover { transform: translateY(-3px); border-color: var(--orange); }
.button-primary:hover { background: #ff8b70; }
.hero-visual { position: relative; overflow: hidden; }
.image-frame {
  position: absolute; inset: 0; margin: 0; background:
    radial-gradient(circle at 18% 24%, rgba(247,250,247,.9) 0 1px, transparent 2px),
    radial-gradient(circle at 70% 15%, rgba(115,213,218,.8) 0 1px, transparent 2px),
    radial-gradient(circle at 84% 40%, rgba(247,250,247,.65) 0 1px, transparent 2px),
    radial-gradient(circle at 38% 68%, rgba(247,250,247,.55) 0 1px, transparent 2px),
    radial-gradient(circle at 50% 34%, rgba(88,117,169,.24), transparent 28%),
    linear-gradient(145deg, #132844, #07111f 72%);
  background-size: 170px 170px, 230px 230px, 310px 310px, 260px 260px, auto, auto;
}
.image-frame::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, var(--ink) 0%, rgba(7,17,31,.3) 18%, transparent 48%), linear-gradient(0deg, rgba(7,17,31,.58), transparent 45%);
}
.image-frame picture { display: block; width: 100%; height: 100%; }
.image-frame img { width: 100%; height: 100%; object-fit: cover; object-position: 47% center; filter: saturate(.76) contrast(1.08); }
.image-frame figcaption {
  position: absolute; z-index: 2; right: clamp(24px, 5vw, 72px); bottom: 48px;
  display: flex; align-items: flex-start; gap: 18px; color: rgba(247,250,247,.78);
  font-size: 12px; line-height: 1.55; letter-spacing: .06em; text-transform: uppercase;
}
.caption-index { color: var(--orange); font-weight: 800; }
.availability-card {
  position: absolute; z-index: 3; top: 20%; left: -1px; width: 182px; padding: 24px 26px;
  color: var(--ink); background: var(--cyan); box-shadow: 20px 24px 60px rgba(0,0,0,.24);
  font-size: 10px; font-weight: 700; letter-spacing: .1em; line-height: 1.5; text-transform: uppercase;
}
.availability-value { display: block; font-size: 43px; font-weight: 900; line-height: 1; letter-spacing: -.06em; margin-bottom: 12px; }
.availability-value span { font-size: 19px; color: rgba(7,17,31,.55); }
.visual-orbit { position: absolute; z-index: 2; border: 1px solid rgba(255,255,255,.15); border-radius: 50%; pointer-events: none; }
.orbit-one { width: 540px; height: 540px; top: 12%; right: -190px; }
.orbit-two { width: 690px; height: 690px; top: 3%; right: -266px; }
.scroll-hint {
  position: absolute; bottom: 34px; left: var(--pad); display: flex; align-items: center; gap: 13px;
  color: rgba(247,250,247,.45); font-size: 9px; font-weight: 700; letter-spacing: .17em; text-transform: uppercase;
}
.scroll-line { width: 45px; height: 1px; background: rgba(247,250,247,.32); position: relative; overflow: hidden; }
.scroll-line::after { content: ""; position: absolute; inset: 0; background: var(--orange); transform: translateX(-100%); animation: scan 2.4s infinite; }

.section {
  padding: 120px var(--pad);
  content-visibility: auto;
  contain-intrinsic-size: auto 900px;
}
.section-heading { max-width: var(--max); margin: 0 auto 72px; display: grid; grid-template-columns: 70px 1fr; }
.section-number { grid-row: 1 / 3; color: var(--orange); font-size: 12px; font-weight: 800; }
.section-heading .kicker { margin-bottom: 20px; color: rgba(7,17,31,.56); }
.section-heading h2, .projects-heading h2 {
  margin: 0; font-size: clamp(48px, 6vw, 94px); line-height: .91; letter-spacing: -.065em; font-weight: 800;
}
.metrics { background: var(--paper); }
.metrics-grid { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line-light); border-left: 1px solid var(--line-light); }
.metric-card { min-height: 280px; padding: 40px 28px; border-right: 1px solid var(--line-light); border-bottom: 1px solid var(--line-light); display: flex; flex-direction: column; justify-content: space-between; }
.metric-value { font-size: clamp(55px, 6vw, 94px); line-height: 1; font-weight: 900; letter-spacing: -.075em; }
.metric-value span { color: var(--orange); font-size: .46em; margin-left: 3px; }
.metric-card p { max-width: 240px; margin: 0; color: rgba(7,17,31,.62); font-size: 14px; }
.impact-strip {
  max-width: var(--max); margin: 26px auto 0; display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 22px; color: rgba(7,17,31,.62); font-size: 12px; text-transform: uppercase; letter-spacing: .07em;
}
.impact-strip > span { display: flex; align-items: baseline; gap: 9px; }
.impact-strip b { flex: 0 0 auto; color: var(--ink); font-size: 20px; letter-spacing: -.03em; }

.expertise { background: var(--ink); color: var(--white); }
.section-heading-light .kicker { color: rgba(247,250,247,.48); }
.expertise-list { max-width: var(--max); margin: 0 auto; border-top: 1px solid var(--line-dark); }
.expertise-row {
  display: grid; grid-template-columns: 70px 1.15fr 1fr 40px; gap: 25px; align-items: center;
  min-height: 146px; border-bottom: 1px solid var(--line-dark); transition: padding .25s, background .25s;
}
.expertise-row:hover { padding-left: 18px; background: rgba(255,255,255,.025); }
.row-number { color: var(--orange); font-size: 11px; font-weight: 800; }
.expertise-row h3 { margin: 0; font-size: clamp(24px, 2.4vw, 38px); letter-spacing: -.04em; }
.expertise-row p { margin: 0; color: rgba(247,250,247,.55); font-size: 14px; }
.row-arrow { justify-self: end; color: var(--orange); font-size: 22px; }
.stack-ticker { background: var(--orange); color: var(--ink); overflow: hidden; padding: 20px 0; transform: rotate(-1.1deg) scale(1.015); }
.ticker-track {
  display: flex; width: max-content; align-items: center; gap: 0;
  animation: ticker 28s linear infinite; font-size: 15px; font-weight: 900;
  letter-spacing: .12em; white-space: nowrap;
}
.ticker-track span { padding-right: 32px; }

.experience { background: var(--paper-warm); padding-top: 150px; }
.timeline { max-width: var(--max); margin: 0 auto; padding-left: 25%; }
.timeline-item { position: relative; padding: 36px 0 38px 45px; border-top: 1px solid var(--line-light); display: grid; grid-template-columns: .9fr 1.1fr; gap: 50px; }
.timeline-item::before { content: ""; position: absolute; top: 41px; left: -3px; width: 7px; height: 7px; background: var(--orange); border-radius: 50%; }
.timeline-meta { display: flex; flex-direction: column; gap: 8px; font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; }
.timeline-meta h3 { margin: 0; font: inherit; }
.timeline-meta span:last-child { color: rgba(7,17,31,.48); font-size: 10px; }
.timeline-meta time { color: var(--orange); font-size: 10px; font-weight: 800; letter-spacing: .08em; }
.timeline-period { color: var(--orange) !important; font-size: 10px !important; font-weight: 800; letter-spacing: .08em; }
.timeline-period time { color: inherit; }
.timeline-period .lang { color: inherit !important; font-size: inherit !important; }
.timeline-meta time span { color: inherit !important; font-size: inherit !important; }
.timeline-detail { display: grid; gap: 15px; }
.timeline-item p { margin: 0; color: rgba(7,17,31,.62); font-size: 15px; }

.projects { background: var(--paper); }
.projects-heading { max-width: var(--max); margin: 0 auto 66px; }
.projects-heading .kicker { color: rgba(7,17,31,.55); }
.project-grid { max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.project-card {
  min-height: 520px; padding: 28px; border: 1px solid var(--line-light); display: flex; flex-direction: column; justify-content: space-between; gap: 34px;
  background: transparent; transition: transform .25s, background .25s, color .25s;
}
.project-card:hover { transform: translateY(-7px); background: var(--ink); color: var(--white); }
.project-featured {
  grid-column: 1 / -1; min-height: 440px; display: grid;
  grid-template-columns: minmax(280px, .85fr) minmax(0, 1.15fr); grid-template-rows: auto 1fr;
  column-gap: clamp(48px, 7vw, 120px); background: var(--ink); color: var(--white);
}
.project-featured .project-top { grid-column: 1 / -1; }
.project-featured > .project-code { grid-column: 1; grid-row: 2; align-self: center; }
.project-featured > div:last-child { grid-column: 2; grid-row: 2; align-self: end; }
.project-private {
  background:
    radial-gradient(circle at 85% 12%, rgba(115,213,218,.1), transparent 35%),
    rgba(7,17,31,.025);
}
.project-top { display: flex; justify-content: space-between; font-size: 10px; font-weight: 800; letter-spacing: .13em; color: var(--orange); }
.project-card h3 { margin: 0 0 16px; font-size: clamp(26px, 2.7vw, 42px); line-height: 1; letter-spacing: -.045em; }
.project-card p { margin: 0; color: rgba(7,17,31,.58); font-size: 14px; }
.project-card:hover p, .project-featured p { color: rgba(247,250,247,.58); }
.project-links { display: flex; flex-wrap: wrap; gap: 12px 22px; margin-top: 24px; }
.project-links a {
  display: inline-flex; align-items: center; gap: 9px; padding-bottom: 5px;
  border-bottom: 1px solid rgba(255,118,87,.65); color: var(--white);
  font-size: 10px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase;
}
.project-links a.lang-en { display: none; }
html[data-language="en"] .project-links a.lang-ru { display: none; }
html[data-language="en"] .project-links a.lang-en { display: inline-flex; }
.project-code {
  font-family: Consolas, "Courier New", monospace; font-size: clamp(13px, 1.1vw, 17px);
  line-height: 1.85; color: rgba(247,250,247,.82);
}
.project-code.lang-ru { display: block; }
.project-code.lang-en { display: none; }
html[data-language="en"] .project-code.lang-ru { display: none; }
html[data-language="en"] .project-code.lang-en { display: block; }
.code-muted { color: rgba(247,250,247,.35); }
.code-accent { color: var(--cyan); }
.project-card:not(.project-featured) .project-code { color: rgba(7,17,31,.72); }
.project-card:not(.project-featured) .code-muted { color: rgba(7,17,31,.36); }
.project-card:not(.project-featured) .code-accent { color: #16767d; }
.project-card:not(.project-featured):hover .project-code { color: rgba(247,250,247,.82); }
.project-card:not(.project-featured):hover .code-muted { color: rgba(247,250,247,.35); }
.project-card:not(.project-featured):hover .code-accent { color: var(--cyan); }

.certificates { background: var(--ink); color: var(--white); }
.certificates-intro {
  max-width: 760px; margin: -30px auto 54px; color: rgba(247,250,247,.58);
  font-size: clamp(16px, 1.5vw, 20px); line-height: 1.6;
}
.certificate-grid {
  max-width: var(--max); margin: 0 auto; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-dark); border-left: 1px solid var(--line-dark);
}
.certificate-card {
  position: relative; min-height: 245px; padding: 28px; display: grid;
  grid-template-columns: 72px 1fr 20px; gap: 22px; align-items: start;
  border-right: 1px solid var(--line-dark); border-bottom: 1px solid var(--line-dark);
  background: rgba(255,255,255,.01); transition: transform .25s, background .25s, border-color .25s;
}
.certificate-card:hover {
  z-index: 2; transform: translateY(-5px); background: rgba(255,255,255,.045);
  border-color: rgba(255,118,87,.6);
}
.certificate-card:focus-visible { outline: 2px solid var(--orange); outline-offset: -2px; }
.certificate-card-featured {
  grid-column: span 2; background:
    radial-gradient(circle at 12% 18%, rgba(115,213,218,.13), transparent 34%),
    rgba(255,255,255,.025);
}
.certificate-icon {
  position: relative; width: 72px; height: 72px; display: grid; place-items: center;
  overflow: hidden; border: 1px solid rgba(115,213,218,.55); color: var(--cyan);
  background: linear-gradient(145deg, rgba(115,213,218,.11), rgba(255,118,87,.05));
  box-shadow: inset 0 0 28px rgba(115,213,218,.06);
  font-family: Consolas, "Courier New", monospace; font-size: 20px; font-weight: 800; letter-spacing: -.04em;
}
.certificate-icon::after {
  content: ""; position: absolute; width: 32px; height: 1px; right: -13px; bottom: 8px;
  background: var(--orange); transform: rotate(-45deg); opacity: .85;
}
.icon-shield { border-radius: 12px 12px 30px 30px; font-size: 16px; letter-spacing: .06em; }
.icon-binary { border-radius: 50%; }
.icon-analysis { font-size: 34px; border-radius: 50% 50% 50% 12px; }
.icon-radar, .icon-target { border-radius: 50%; box-shadow: inset 0 0 0 8px rgba(115,213,218,.05), inset 0 0 0 18px rgba(115,213,218,.04); }
.icon-pulse { font-size: 34px; transform: rotate(4deg); }
.icon-compliance { border-radius: 8px; font-size: 30px; }
.icon-roles { font-size: 36px; }
.icon-assessment { border-radius: 50%; font-size: 17px; }
.icon-lock { border-radius: 28px 28px 8px 8px; font-size: 29px; }
.icon-attack { font-size: 24px; }
.icon-database { border-radius: 50% / 18%; }
.icon-terminal { justify-items: start; padding-left: 14px; font-size: 19px; }
.icon-automation { border-radius: 8px 30px 8px 30px; font-size: 18px; }
.icon-containers {
  font-size: 34px; background:
    repeating-linear-gradient(90deg, rgba(115,213,218,.08) 0 14px, transparent 14px 18px),
    linear-gradient(145deg, rgba(115,213,218,.11), rgba(255,118,87,.05));
}
.icon-kubernetes {
  border-radius: 50%; font-size: 16px;
  box-shadow: inset 0 0 0 7px rgba(115,213,218,.05), inset 0 0 0 15px rgba(115,213,218,.035);
}
.certificate-body { min-width: 0; display: flex; flex-direction: column; height: 100%; }
.certificate-meta {
  margin-bottom: 24px; color: var(--orange); font-size: 9px; font-weight: 800;
  letter-spacing: .12em; text-transform: uppercase;
}
.certificate-card strong {
  display: block; margin: auto 0 16px; font-size: clamp(18px, 1.6vw, 25px);
  line-height: 1.15; letter-spacing: -.025em;
}
.certificate-type {
  color: rgba(247,250,247,.48); font-size: 10px; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase;
}
.certificate-arrow { justify-self: end; color: var(--orange); font-size: 18px; }

.article-page { background: var(--paper); }
.article-site-header { position: absolute; }
.article-nav { justify-content: center; }
.article-site-header .brand.lang-ru { display: flex; }
.article-site-header .brand.lang-en { display: none; }
html[data-language="en"] .article-site-header .brand.lang-ru { display: none; }
html[data-language="en"] .article-site-header .brand.lang-en { display: flex; }
.article-hero {
  min-height: min(900px, 100svh); padding: 170px var(--pad) 110px;
  display: flex; align-items: center; background:
    radial-gradient(circle at 76% 30%, rgba(115,213,218,.13), transparent 27%),
    radial-gradient(circle at 18% 75%, rgba(255,118,87,.08), transparent 24%),
    var(--ink);
  color: var(--white);
}
.article-hero-inner { width: 100%; max-width: var(--max); margin: 0 auto; }
.article-hero h1 {
  max-width: 1240px; margin: 0; font-size: clamp(56px, 7.6vw, 116px);
  line-height: .9; letter-spacing: -.055em; font-weight: 900;
}
.article-hero h1 .lang { display: block; }
.article-hero h1 .lang-en { display: none; }
html[data-language="en"] .article-hero h1 .lang-ru { display: none; }
html[data-language="en"] .article-hero h1 .lang-en { display: block; }
.article-hero h1 em {
  color: var(--orange); font-family: inherit; font-weight: 900; font-style: normal;
  -webkit-text-stroke: 0;
}
.article-deck {
  max-width: 760px; margin: 40px 0 0; color: rgba(247,250,247,.64);
  font-size: clamp(18px, 1.7vw, 25px); line-height: 1.5;
}
.article-meta {
  display: flex; flex-wrap: wrap; gap: 12px 28px; margin-top: 34px;
  color: rgba(247,250,247,.46); font-size: 10px; font-weight: 800;
  letter-spacing: .1em; text-transform: uppercase;
}
.article-meta a { color: var(--cyan); }
.technical-article {
  max-width: 980px; margin: 0 auto; padding: 120px var(--pad);
  color: rgba(7,17,31,.77); font-size: 18px; line-height: 1.75;
}
.article-language.lang-ru { display: block; }
.article-language.lang-en { display: none; }
html[data-language="en"] .article-language.lang-ru { display: none; }
html[data-language="en"] .article-language.lang-en { display: block; }
.technical-article p { margin: 0 0 28px; }
.technical-article .article-lead {
  margin-bottom: 42px; color: var(--ink); font-size: clamp(22px, 2.1vw, 30px);
  line-height: 1.48; letter-spacing: -.025em;
}
.technical-article h2 {
  margin: 82px 0 24px; color: var(--ink); font-size: clamp(37px, 4vw, 58px);
  line-height: .98; letter-spacing: -.055em;
}
.article-flow {
  display: grid; grid-template-columns: repeat(4, 1fr); margin: 64px 0 80px;
  border-top: 1px solid var(--line-light); border-left: 1px solid var(--line-light);
}
.article-flow div {
  min-height: 180px; padding: 22px; display: flex; flex-direction: column;
  border-right: 1px solid var(--line-light); border-bottom: 1px solid var(--line-light);
}
.article-flow span { color: var(--orange); font-size: 10px; font-weight: 800; }
.article-flow strong { margin: auto 0 8px; color: var(--ink); font-size: 20px; }
.article-flow small { color: rgba(7,17,31,.5); font-size: 11px; line-height: 1.45; }
.technical-article blockquote {
  margin: 64px 0; padding: 36px 42px; border: 0; border-left: 4px solid var(--orange);
  background: var(--ink); color: var(--white); font-family: Georgia, serif;
  font-size: clamp(23px, 2.5vw, 34px); font-style: italic; line-height: 1.4;
}
.article-sources {
  display: flex; flex-wrap: wrap; gap: 12px 24px; margin-top: 70px; padding-top: 28px;
  border-top: 1px solid var(--line-light); color: rgba(7,17,31,.5);
  font-size: 11px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
}
.article-sources a { color: var(--ink); border-bottom: 1px solid var(--orange); }
.article-cta {
  padding: 120px var(--pad); text-align: center; background: var(--ink); color: var(--white);
}
.article-cta .kicker { justify-content: center; color: var(--orange); }
.article-cta h2 {
  margin: 0 auto 46px; font-size: clamp(50px, 7vw, 104px);
  line-height: .88; letter-spacing: -.065em;
}
.article-cta .button { width: fit-content; margin: 0 auto; }
.article-cta .button.lang-en { display: none; }
html[data-language="en"] .article-cta .button.lang-ru { display: none; }
html[data-language="en"] .article-cta .button.lang-en { display: inline-flex; }
.article-page footer .brand.lang-ru { display: flex; }
.article-page footer .brand.lang-en { display: none; }
html[data-language="en"] .article-page footer .brand.lang-ru { display: none; }
html[data-language="en"] .article-page footer .brand.lang-en { display: flex; }

.publications-hero { min-height: 720px; }
.publications-index {
  position: relative; max-width: var(--max); margin: 0 auto; padding: 120px var(--pad) 150px;
}
.publications-index::before {
  content: ""; position: absolute; z-index: -1; width: 440px; height: 440px;
  top: 60px; right: -160px; border: 1px solid rgba(7,17,31,.08); border-radius: 50%;
  box-shadow: 0 0 0 70px rgba(7,17,31,.018), 0 0 0 140px rgba(7,17,31,.012);
}
.publications-heading {
  display: grid; grid-template-columns: 70px 1fr; gap: 28px; align-items: start;
  margin-bottom: 80px;
}
.publications-heading .section-number, .publication-index {
  padding-top: 8px; color: var(--orange); font-size: 12px; font-weight: 900;
  letter-spacing: .1em;
}
.publications-heading .kicker { margin-bottom: 16px; color: rgba(7,17,31,.48); }
.publications-heading h2 {
  margin: 0; color: var(--ink); font-size: clamp(58px, 7vw, 104px);
  line-height: .84; letter-spacing: -.065em;
}
.publication-card {
  display: grid; grid-template-columns: 70px minmax(0, 1fr) 40px; gap: 28px;
  padding: 48px 0 54px; border-top: 1px solid var(--line-light);
  transition: border-color .25s ease, transform .25s ease;
}
.publication-card:last-child { border-bottom: 1px solid var(--line-light); }
.publication-card:hover { border-top-color: var(--orange); transform: translateX(8px); }
.publication-content { max-width: 900px; }
.publication-meta {
  margin: 0 0 18px; color: rgba(7,17,31,.48); font-size: 10px;
  font-weight: 800; letter-spacing: .1em; text-transform: uppercase;
}
.publication-card h2 {
  margin: 0 0 22px; color: var(--ink); font-size: clamp(34px, 4vw, 58px);
  line-height: .98; letter-spacing: -.045em;
}
.publication-card p:not(.publication-meta) {
  max-width: 740px; margin: 0; color: rgba(7,17,31,.62); font-size: 17px; line-height: 1.65;
}
.publication-card-link {
  width: fit-content; margin-top: 30px; padding-bottom: 6px; border-bottom: 1px solid var(--orange);
  color: var(--ink); font-size: 11px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase;
}
.publication-card-link.lang-ru { display: inline-flex; gap: 14px; }
.publication-card-link.lang-en { display: none; }
html[data-language="en"] .publication-card-link.lang-ru { display: none; }
html[data-language="en"] .publication-card-link.lang-en { display: inline-flex; gap: 14px; }
.publication-mark {
  color: var(--orange); font-size: 24px; text-align: right; transition: transform .25s ease;
}
.publication-card:hover .publication-mark { transform: translate(4px, -4px); }

.contact {
  position: relative; overflow: hidden; min-height: 670px; display: flex; flex-direction: column; justify-content: center;
  align-items: center; text-align: center; background: var(--ink); color: var(--white);
}
.contact-glow { position: absolute; width: 520px; height: 520px; border: 1px solid rgba(115,213,218,.2); border-radius: 50%; box-shadow: 0 0 130px rgba(115,213,218,.08); }
.contact .kicker { position: relative; color: var(--orange); }
.contact h2 { position: relative; margin: 0; font-size: clamp(64px, 9.5vw, 145px); line-height: .77; letter-spacing: -.075em; }
.contact h2 em {
  color: var(--orange); font-family: inherit; font-weight: 900; font-style: normal;
  -webkit-text-stroke: 0;
}
.contact-copy { position: relative; max-width: 620px; margin: 40px auto 30px; color: rgba(247,250,247,.58); font-size: 15px; }
.contact-actions { position: relative; display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 30px; }
.contact-link { position: relative; display: inline-flex; gap: 28px; align-items: center; padding: 0 0 8px; border: 0; border-bottom: 1px solid var(--orange); background: transparent; color: inherit; cursor: pointer; font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.contact-link span { color: var(--orange); }
.contact-link .lang { color: inherit; }
.print-header-contact, .print-contact { display: none; }
footer {
  background: var(--ink); color: rgba(247,250,247,.48); border-top: 1px solid var(--line-dark);
  padding: 30px var(--pad); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  font-size: 10px; letter-spacing: .1em; text-transform: uppercase;
}
footer .brand { color: var(--white); }
footer p:last-child { justify-self: end; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@keyframes scan { 0% { transform: translateX(-100%); } 55%,100% { transform: translateX(100%); } }
@keyframes ticker { to { transform: translateX(-50%); } }

@media (max-width: 1000px) {
  .site-header { z-index: 30; grid-template-columns: 1fr auto auto; gap: 12px; }
  .mobile-menu-toggle { display: inline-flex; justify-self: end; }
  .nav {
    position: absolute; top: calc(100% - 8px); left: var(--pad); right: var(--pad);
    display: flex; flex-direction: column; align-items: stretch; justify-content: flex-start; gap: 0;
    padding: 10px 22px; border: 1px solid rgba(255,255,255,.16);
    background: rgba(7,17,31,.96); color: rgba(247,250,247,.78);
    box-shadow: 0 24px 70px rgba(0,0,0,.34);
    opacity: 0; visibility: hidden; pointer-events: none; transform: translateY(-10px);
    transition: opacity .22s ease, visibility .22s ease, transform .22s ease;
    -webkit-backdrop-filter: blur(18px); backdrop-filter: blur(18px);
  }
  .nav.is-open { opacity: 1; visibility: visible; pointer-events: auto; transform: translateY(0); }
  .nav a { padding: 15px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
  .nav a:last-child { border-bottom: 0; }
  .nav-print-link {
    display: flex; padding: 15px 0; border-bottom: 0; color: rgba(247,250,247,.78);
  }
  .header-print { display: none; }
  .hero { height: auto; min-height: 100svh; grid-template-columns: 1fr; }
  .hero::before { background: radial-gradient(circle at 11% 12%, rgba(115,213,218,.11), transparent 27%); }
  .hero-copy { max-width: none; min-height: 690px; padding-top: 150px; padding-bottom: 80px; }
  .hero-visual { min-height: 620px; }
  .image-frame::after { background: linear-gradient(0deg, rgba(7,17,31,.55), transparent 50%), linear-gradient(180deg, var(--ink), transparent 20%); }
  .availability-card { left: var(--pad); top: 0; }
  .scroll-hint { display: none; }
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .impact-strip { grid-template-columns: 1fr; }
  .expertise-row { grid-template-columns: 50px 1fr 40px; padding: 26px 0; }
  .expertise-row p { grid-column: 2 / 3; }
  .row-arrow { grid-column: 3; grid-row: 1 / 3; }
  .timeline { padding-left: 0; }
  .project-grid { grid-template-columns: 1fr 1fr; }
  .project-featured { grid-column: 1 / 3; }
  .project-private { grid-column: 1 / 3; min-height: 390px; }
  .project-card { min-height: 390px; }
  .certificate-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .certificate-card-featured { grid-column: span 2; }
  .publications-index { padding-top: 100px; padding-bottom: 120px; }
}

@media (max-width: 650px) {
  :root { --pad: 20px; }
  .site-header { padding-top: 18px; }
  .header-cta { display: none; }
  .hero-copy { min-height: 650px; padding-top: 125px; }
  .hero h1 { font-size: clamp(57px, 20vw, 82px); line-height: .8; }
  .hero h1 .outline { margin-left: 0; }
  .hero-role { line-height: 1.7; }
  .hero-lead { font-size: 18px; }
  .orcid-profile { margin-top: 20px; font-size: 9px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-visual { min-height: 0; aspect-ratio: 1051 / 793; }
  .image-frame img { object-fit: contain; object-position: center; }
  .availability-card { top: 12px; left: 12px; width: 138px; padding: 15px 16px; font-size: 8px; }
  .availability-value { font-size: 30px; margin-bottom: 8px; }
  .image-frame figcaption { display: none; }
  .section { padding-top: 82px; padding-bottom: 82px; }
  .section-heading { grid-template-columns: 34px 1fr; margin-bottom: 48px; }
  .section-heading h2, .projects-heading h2 { font-size: 47px; }
  .expertise .section-heading h2,
  .experience .section-heading h2,
  .certificates .section-heading h2 { font-size: clamp(29px, 9.7vw, 40px); line-height: .96; }
  .metrics-grid { grid-template-columns: 1fr; }
  .metric-card { min-height: 220px; }
  .expertise-row { grid-template-columns: 32px 1fr 24px; gap: 12px; }
  .expertise-row:hover { padding-left: 0; }
  .timeline-item { grid-template-columns: 1fr; padding-left: 28px; gap: 20px; }
  .timeline-item::before { left: -3px; }
  .project-grid { grid-template-columns: 1fr; }
  .project-featured { grid-column: auto; display: flex; }
  .project-private { grid-column: auto; }
  .project-card { min-height: 360px; }
  .certificates-intro { margin-top: -18px; margin-bottom: 38px; }
  .certificate-grid { grid-template-columns: 1fr; }
  .certificate-card, .certificate-card-featured { grid-column: auto; min-height: 220px; padding: 24px 20px; grid-template-columns: 60px 1fr 16px; gap: 16px; }
  .certificate-icon { width: 60px; height: 60px; }
  .publications-hero { min-height: 680px; }
  .publications-heading { grid-template-columns: 34px 1fr; gap: 14px; margin-bottom: 56px; }
  .publications-heading h2 { font-size: clamp(47px, 15vw, 68px); }
  .publication-card { grid-template-columns: 30px minmax(0, 1fr); gap: 14px; padding: 34px 0 40px; }
  .publication-card:hover { transform: none; }
  .publication-card h2 { font-size: clamp(31px, 9.5vw, 42px); }
  .publication-card p:not(.publication-meta) { font-size: 16px; }
  .publication-mark { display: none; }
  .article-hero { min-height: 760px; padding-top: 135px; padding-bottom: 80px; }
  .article-hero h1 { font-size: clamp(43px, 13vw, 62px); line-height: .9; }
  .article-deck { margin-top: 30px; font-size: 18px; }
  .technical-article { padding-top: 76px; padding-bottom: 80px; font-size: 17px; }
  .technical-article .article-lead { font-size: 21px; }
  .technical-article h2 { margin-top: 64px; font-size: clamp(31px, 9.6vw, 42px); }
  .article-flow { grid-template-columns: 1fr 1fr; margin: 48px 0 58px; }
  .article-flow div { min-height: 145px; padding: 18px; }
  .technical-article blockquote { margin: 48px 0; padding: 28px 24px; font-size: 23px; }
  .article-cta { padding-top: 88px; padding-bottom: 88px; }
  .article-cta h2 { font-size: clamp(40px, 12vw, 60px); }
  .contact { min-height: 590px; }
  .contact h2 { width: 100%; max-width: 100%; font-size: clamp(32px, 11.2vw, 52px); line-height: .9; }
  .contact-actions { flex-direction: column; gap: 18px; }
  footer { grid-template-columns: 1fr auto; gap: 28px; }
  footer p:last-child { display: none; }
}

@media (max-width: 370px) {
  .site-header > .brand > span:last-child { display: none; }
}

@media (max-height: 900px) {
  .scroll-hint { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}