:root {
  --captain-ink: #102235;
  --captain-navy: #0b1f33;
  --captain-sea: #116466;
  --captain-sea-dark: #0b4b4c;
  --captain-sand: #f4efe6;
  --captain-fog: #edf2f4;
  --captain-white: #ffffff;
  --captain-muted: #607080;
  --captain-line: rgba(16, 34, 53, .12);
  --captain-shadow: 0 18px 45px rgba(11, 31, 51, .10);
}

html { scroll-behavior: smooth; }
body {
  color: var(--captain-ink);
  background: var(--captain-white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

a { color: var(--captain-sea-dark); }
a:hover { color: var(--captain-sea); }

.site-nav {
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--captain-line);
}
.navbar-brand {
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--captain-navy) !important;
}
.brand-mark {
  width: 2rem;
  height: 2rem;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--captain-sea);
  font-size: .76rem;
  letter-spacing: .04em;
  box-shadow: 0 8px 20px rgba(17,100,102,.20);
}
.nav-link { font-weight: 600; color: #3d4c59; }
.nav-link:hover, .nav-link.active { color: var(--captain-sea-dark); }

.hero {
  position: relative;
  overflow: hidden;
  padding: 8.5rem 0 6.5rem;
  background:
    radial-gradient(circle at 78% 18%, rgba(17,100,102,.14), transparent 28rem),
    linear-gradient(180deg, #fff 0%, #f8fafb 100%);
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .28;
  background-image:
    linear-gradient(rgba(16,34,53,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16,34,53,.045) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: linear-gradient(to bottom, #000 0%, transparent 88%);
}
.hero .container { position: relative; z-index: 1; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .76rem;
  font-weight: 800;
  color: var(--captain-sea-dark);
}
.eyebrow::before {
  content: "";
  width: 1.5rem;
  height: 2px;
  background: var(--captain-sea);
}
.hero h1, .page-hero h1 {
  color: var(--captain-navy);
  font-weight: 800;
  letter-spacing: -.05em;
  line-height: 1.04;
}
.hero h1 { font-size: clamp(2.8rem, 6vw, 5.7rem); max-width: 14ch; }
.hero-lead {
  max-width: 47rem;
  color: #465766;
  font-size: clamp(1.15rem, 2vw, 1.42rem);
}
.hero-note { color: var(--captain-muted); font-size: .95rem; }

.btn-captain {
  --bs-btn-color: #fff;
  --bs-btn-bg: var(--captain-sea-dark);
  --bs-btn-border-color: var(--captain-sea-dark);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-bg: #083f40;
  --bs-btn-hover-border-color: #083f40;
  --bs-btn-active-bg: #083f40;
  border-radius: .8rem;
  padding: .84rem 1.2rem;
  font-weight: 700;
}
.btn-quiet {
  border-radius: .8rem;
  padding: .84rem 1.2rem;
  font-weight: 700;
  border-color: rgba(16,34,53,.16);
  color: var(--captain-navy);
  background: rgba(255,255,255,.75);
}
.btn-quiet:hover { border-color: var(--captain-sea); color: var(--captain-sea-dark); background: #fff; }

.section { padding: 6rem 0; }
.section-sm { padding: 4rem 0; }
.section-soft { background: #f7f9fa; }
.section-dark { background: var(--captain-navy); color: rgba(255,255,255,.82); }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-sand { background: var(--captain-sand); }
.section-title {
  font-weight: 800;
  letter-spacing: -.035em;
  line-height: 1.12;
  color: var(--captain-navy);
  font-size: clamp(2rem, 4vw, 3.45rem);
}
.section-lead { color: #526270; font-size: 1.12rem; max-width: 48rem; }
.section-dark .section-lead { color: rgba(255,255,255,.68); }

.problem-card, .system-card, .story-card, .video-card {
  height: 100%;
  border: 1px solid var(--captain-line);
  background: #fff;
  border-radius: 1.15rem;
  padding: 1.6rem;
  box-shadow: 0 1px 0 rgba(16,34,53,.02);
}
.problem-card h3, .system-card h3, .story-card h3, .video-card h3 {
  font-size: 1.14rem;
  font-weight: 800;
  letter-spacing: -.02em;
}
.problem-card p, .system-card p, .story-card p, .video-card p { color: #5c6b77; margin-bottom: 0; }
.system-card { transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.system-card:hover { transform: translateY(-3px); box-shadow: var(--captain-shadow); border-color: rgba(17,100,102,.28); }
.system-index {
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .1em;
  color: var(--captain-sea-dark);
  text-transform: uppercase;
  margin-bottom: .8rem;
}
.system-link { text-decoration: none; color: inherit; }

.quote-block {
  border-left: 4px solid var(--captain-sea);
  padding: .5rem 0 .5rem 1.35rem;
  font-size: clamp(1.25rem, 2.6vw, 1.9rem);
  line-height: 1.42;
  letter-spacing: -.025em;
  color: var(--captain-navy);
  max-width: 55rem;
}
.section-dark .quote-block { color: #fff; }

.steps { counter-reset: step; }
.step {
  position: relative;
  padding-left: 4rem;
  margin-bottom: 2.2rem;
}
.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: -.1rem;
  width: 2.7rem;
  height: 2.7rem;
  display: grid;
  place-items: center;
  border: 1px solid rgba(17,100,102,.25);
  border-radius: 50%;
  color: var(--captain-sea-dark);
  font-weight: 800;
  background: rgba(17,100,102,.06);
}
.step h3 { font-size: 1.16rem; font-weight: 800; }
.step p { color: #5d6b77; }

.page-hero {
  padding: 8.2rem 0 4.5rem;
  background: linear-gradient(180deg,#f7f9fa 0%,#fff 100%);
  border-bottom: 1px solid var(--captain-line);
}
.page-hero h1 { font-size: clamp(2.6rem,5vw,4.6rem); max-width: 16ch; }
.page-hero p { max-width: 50rem; font-size: 1.2rem; color: #50616f; }

.article { max-width: 52rem; }
.article h2 { font-size: clamp(1.7rem,3vw,2.45rem); font-weight: 800; letter-spacing: -.03em; margin-top: 3.6rem; margin-bottom: 1rem; }
.article h3 { font-size: 1.25rem; font-weight: 800; margin-top: 2.3rem; }
.article p, .article li { font-size: 1.07rem; color: #354653; }
.article strong { color: var(--captain-navy); }
.article .lead-paragraph { font-size: 1.25rem; color: var(--captain-ink); }

.aside-card {
  position: sticky;
  top: 6.6rem;
  border: 1px solid var(--captain-line);
  border-radius: 1rem;
  padding: 1.4rem;
  background: #fff;
}
.aside-card h3 { font-size: 1rem; font-weight: 800; }
.aside-card a { text-decoration: none; font-weight: 700; }

.signal-list { list-style: none; margin: 0; padding: 0; }
.signal-list li { position: relative; padding: .65rem 0 .65rem 1.7rem; border-bottom: 1px solid var(--captain-line); }
.signal-list li:last-child { border-bottom: 0; }
.signal-list li::before { content: "→"; position: absolute; left: 0; color: var(--captain-sea); font-weight: 800; }

.timeline { border-left: 1px solid rgba(16,34,53,.15); margin-left: .55rem; }
.timeline-item { position: relative; padding: 0 0 2.3rem 1.8rem; }
.timeline-item::before { content: ""; position: absolute; left: -.39rem; top: .38rem; width: .72rem; height: .72rem; border-radius: 50%; background: var(--captain-sea); box-shadow: 0 0 0 5px #fff; }
.timeline-date { font-size: .8rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--captain-sea-dark); }
.timeline-item h3 { font-size: 1.1rem; font-weight: 800; margin: .25rem 0; }
.timeline-item p { color: #607080; margin: 0; }

.cta-panel {
  border-radius: 1.35rem;
  padding: clamp(2rem,5vw,4.2rem);
  background: var(--captain-navy);
  color: rgba(255,255,255,.78);
  position: relative;
  overflow: hidden;
}
.cta-panel::after {
  content: "";
  position: absolute;
  width: 20rem;
  height: 20rem;
  right: -8rem;
  top: -9rem;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 50%;
  box-shadow: 0 0 0 3rem rgba(255,255,255,.018), 0 0 0 6rem rgba(255,255,255,.012);
}
.cta-panel h2 { color: #fff; font-weight: 800; letter-spacing: -.035em; position: relative; z-index: 1; }
.cta-panel p, .cta-panel .btn { position: relative; z-index: 1; }

.video-placeholder {
  min-height: 13rem;
  border-radius: .9rem;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg,#0d293f,#123d4a);
  color: white;
  margin-bottom: 1.1rem;
  position: relative;
  overflow: hidden;
}
.video-placeholder::before {
  content: "▶";
  width: 3.6rem;
  height: 3.6rem;
  border-radius: 50%;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.24);
  display: grid;
  place-items: center;
  padding-left: .2rem;
}

.footer {
  border-top: 1px solid var(--captain-line);
  background: #f7f9fa;
  padding: 3.5rem 0 2rem;
  color: #5c6c79;
}
.footer h2, .footer h3 { color: var(--captain-navy); }
.footer a { text-decoration: none; }
.footer .small { font-size: .88rem; }

.skip-link { position: absolute; left: -9999px; top: 0; z-index: 9999; }
.skip-link:focus { left: 1rem; top: 1rem; background: #fff; padding: .7rem 1rem; border-radius: .5rem; box-shadow: var(--captain-shadow); }

@media (max-width: 991.98px) {
  .hero { padding-top: 7rem; }
  .section { padding: 4.5rem 0; }
  .aside-card { position: static; }
}
@media (max-width: 575.98px) {
  .hero { padding: 6.3rem 0 4rem; }
  .page-hero { padding: 6.5rem 0 3.5rem; }
  .section { padding: 3.8rem 0; }
  .step { padding-left: 3.4rem; }
}

/* Brand logo */
.navbar-brand {
  padding-top: .2rem;
  padding-bottom: .2rem;
}
.brand-logo {
  width: auto;
  height: 4.15rem;
  max-width: 10.5rem;
  object-fit: contain;
  flex: 0 0 auto;
}
.hero-brand-logo {
  position: absolute;
  z-index: 0;
  right: clamp(1rem, 5vw, 6rem);
  top: 50%;
  transform: translateY(-50%);
  width: clamp(17rem, 30vw, 29rem);
  height: auto;
  max-height: 76%;
  object-fit: contain;
  opacity: .17;
  pointer-events: none;
  user-select: none;
}
.page-hero { position: relative; overflow: hidden; }
.page-hero > .container { position: relative; z-index: 1; }
.page-brand-logo { opacity: .085; width: clamp(15rem, 24vw, 22rem); }
.footer .brand-logo { height: 5.8rem; max-width: 14rem; }

@media (max-width: 991.98px) {
  .brand-logo { height: 3.75rem; max-width: 9.6rem; }
  .hero-brand-logo {
    right: -2rem;
    width: 19rem;
    opacity: .07;
  }
}
@media (max-width: 575.98px) {
  .site-nav .container { padding-top: .25rem !important; padding-bottom: .25rem !important; }
  .brand-logo { height: 3.25rem; max-width: 8.4rem; }
  .hero-brand-logo {
    right: -5.5rem;
    top: 43%;
    width: 16.5rem;
    opacity: .045;
  }
  .page-brand-logo { right: -5rem; width: 15rem; opacity: .045; }
  .footer .brand-logo { height: 5rem; max-width: 12rem; }
}

/* Mobile readability check */
@media (max-width: 575.98px) {
  .hero h1 { font-size: 2.35rem; line-height: 1.07; }
  .hero-lead { font-size: 1.08rem; }
  .hero .btn { width: 100%; text-align: center; }
  .cta-panel .btn { width: 100%; }
}

/* Supplied IT-Captain brand master and mobile layout checks */
.error-brand-logo { width: auto; height: 7rem; display: block; }
@media (max-width: 575.98px) {
  .row.g-5 { --bs-gutter-x: 1.5rem; }
  .error-brand-logo { height: 5.5rem; }
}
@media (max-width: 575.98px) {
  .page-hero h1 { font-size: 2.15rem; line-height: 1.08; }
}
\n\n/* Header brand lockup */
.navbar-brand {
  min-width: 0;
  margin-right: 1.25rem;
  text-decoration: none;
}
.site-nav .brand-logo {
  height: 3.35rem;
  max-width: 4rem;
}
.brand-copy {
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1;
}
.brand-title-line {
  display: flex;
  align-items: baseline;
  gap: .55rem;
  min-width: 0;
}
.brand-name {
  display: block;
  color: var(--captain-navy);
  font-size: 1.32rem;
  font-weight: 850;
  letter-spacing: -.035em;
  white-space: nowrap;
}
.brand-pronunciation {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  padding: .18rem .42rem .2rem;
  border: 1px solid rgba(22, 99, 112, .18);
  border-radius: 999px;
  background: rgba(22, 99, 112, .055);
  color: var(--captain-sea-dark);
  font-size: .61rem;
  font-weight: 650;
  letter-spacing: 0;
  line-height: 1;
  white-space: nowrap;
}
.brand-pronunciation-label {
  margin-right: .18rem;
  color: var(--captain-muted);
  font-weight: 550;
}
.brand-tagline {
  display: block;
  margin-top: .31rem;
  color: var(--captain-muted);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .005em;
  line-height: 1.05;
  white-space: nowrap;
}
.footer-brand-copy { display: flex; align-items: center; }
.footer-brand-name {
  color: var(--captain-navy);
  font-size: 1.45rem;
  font-weight: 850;
  letter-spacing: -.035em;
}
@media (max-width: 1199.98px) and (min-width: 992px) {
  .site-nav .brand-logo { height: 3rem; }
  .brand-name { font-size: 1.12rem; }
  .brand-pronunciation { font-size: .56rem; padding: .16rem .34rem .18rem; }
  .brand-tagline { font-size: .61rem; }
  .navbar-brand { margin-right: .6rem; }
  .site-nav .nav-link { padding-left: .4rem; padding-right: .4rem; }
}
@media (max-width: 575.98px) {
  .site-nav .brand-logo { height: 2.75rem; max-width: 3.3rem; }
  .navbar-brand { gap: .55rem !important; margin-right: .35rem; }
  .brand-title-line { gap: .42rem; }
  .brand-name { font-size: 1.08rem; }
  .brand-pronunciation { font-size: .58rem; padding: .16rem .34rem .18rem; }
  .brand-pronunciation-label { display: none; }
  .brand-tagline { font-size: .58rem; margin-top: .24rem; }
}
@media (max-width: 365px) {
  .site-nav .brand-logo { height: 2.55rem; max-width: 3rem; }
  .brand-name { font-size: 1rem; }
  .brand-pronunciation { font-size: .54rem; padding: .14rem .3rem .16rem; }
  .brand-tagline { display: none; }
}


/* Compact branded footer */
.footer {
  padding: 2.35rem 0 1.35rem;
}
.footer-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5rem;
  padding-bottom: 1.8rem;
}
.footer-identity {
  display: inline-flex;
  align-items: center;
  gap: 1.15rem;
  min-width: 0;
  color: inherit;
  text-decoration: none;
}
.footer-identity:hover { color: inherit; }
.footer-logo {
  width: auto;
  height: 5rem;
  flex: 0 0 auto;
}
.footer-identity-copy {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.footer-brand-name {
  display: block;
  color: var(--captain-navy);
  font-size: 1.65rem;
  font-weight: 850;
  letter-spacing: -.04em;
  line-height: 1;
}
.footer-brand-tagline {
  display: block;
  margin-top: .45rem;
  max-width: 31rem;
  color: #647583;
  font-size: .98rem;
  font-weight: 500;
  line-height: 1.35;
}
.footer-social {
  flex: 0 0 auto;
  text-align: right;
}
.footer-social-label {
  display: block;
  margin-bottom: .55rem;
  color: #7a8995;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .055em;
  text-transform: uppercase;
}
.footer-social-links {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: .55rem;
}
.footer-social-links a {
  display: inline-flex;
  align-items: center;
  min-height: 2.35rem;
  padding: .45rem .75rem;
  border: 1px solid var(--captain-line);
  border-radius: .65rem;
  background: rgba(255,255,255,.72);
  color: var(--captain-navy);
  font-size: .9rem;
  font-weight: 700;
}
.footer-social-links a:hover {
  background: #fff;
  border-color: #becbd3;
}
.footer-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--captain-line);
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem 1.15rem;
}
.footer-nav a {
  color: #61727f;
  font-size: .88rem;
  font-weight: 600;
}
.footer-nav a:hover { color: var(--captain-navy); }
.footer-copy {
  flex: 0 0 auto;
  color: #81909b;
  font-size: .84rem;
  white-space: nowrap;
}

@media (max-width: 767.98px) {
  .footer { padding: 2rem 0 1.25rem; }
  .footer-main {
    align-items: flex-start;
    flex-direction: column;
    gap: 1.45rem;
    padding-bottom: 1.45rem;
  }
  .footer-logo { height: 4.15rem; }
  .footer-brand-name { font-size: 1.45rem; }
  .footer-brand-tagline { max-width: 26rem; font-size: .92rem; }
  .footer-social { text-align: left; }
  .footer-social-links { justify-content: flex-start; }
  .footer-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: .9rem;
  }
}

@media (max-width: 359.98px) {
  .footer-identity { gap: .85rem; }
  .footer-logo { height: 3.65rem; }
  .footer-brand-name { font-size: 1.3rem; }
  .footer-brand-tagline { font-size: .86rem; }
}

/* About: education and career */
.section-kicker {
  margin-top: -.25rem;
  color: var(--captain-muted) !important;
  font-size: 1.08rem !important;
  font-style: italic;
}
.education-grid {
  display: grid;
  gap: 1rem;
}
.education-card {
  display: grid;
  grid-template-columns: 7.25rem minmax(0, 1fr);
  gap: 1.4rem;
  align-items: start;
  padding: 1.45rem;
  border: 1px solid var(--captain-line);
  border-radius: 1.1rem;
  background: #fff;
  box-shadow: 0 1px 0 rgba(16,34,53,.02);
}
.education-logo-wrap {
  min-height: 6.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: .85rem;
  background: #f7f9fa;
  padding: .8rem;
}
.education-logo {
  display: block;
  max-width: 100%;
  max-height: 5.2rem;
  object-fit: contain;
}
.education-logo-hse { width: 4.65rem; height: 4.65rem; }
.education-logo-ngtu { width: 6.5rem; height: 6rem; }
.education-date {
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--captain-sea-dark);
  margin-bottom: .3rem;
}
.education-card h3 {
  margin: 0 0 .4rem;
  font-size: 1.12rem;
  line-height: 1.35;
}
.education-card p { margin-bottom: .6rem; }
.education-program {
  color: var(--captain-navy) !important;
  font-weight: 800;
}
.education-diploma {
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  font-weight: 800;
  text-decoration: none;
}
.education-diploma-static { color: var(--captain-navy); }
.article .career-years {
  margin: 0;
  color: var(--captain-muted);
  font-weight: 700;
}
@media (max-width: 575.98px) {
  .education-card {
    grid-template-columns: 4.8rem minmax(0, 1fr);
    gap: 1rem;
    padding: 1.1rem;
  }
  .education-logo-wrap { min-height: 4.8rem; padding: .5rem; }
  .education-logo-hse { width: 3.7rem; height: 3.7rem; }
  .education-logo-ngtu { width: 4.2rem; height: 4.2rem; }
  .education-card h3 { font-size: 1.03rem; }
  .education-card p { font-size: .98rem; }
}

.timeline-role {
  margin-bottom: .55rem;
  color: var(--captain-ink, #0b1f33);
}
.timeline-item > h3 {
  margin-bottom: .35rem;
}
.timeline-item ul {
  margin-bottom: 0;
}