:root {
  --font-sans: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f7f6f3;
  --color-text-primary: #1a1a1a;
  --color-text-secondary: #555555;
  --color-text-tertiary: #888888;
  --color-border: rgba(0, 0, 0, 0.08);
  --color-border-strong: rgba(0, 0, 0, 0.12);
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --max-width-site: 960px;
  --max-width-content: 640px;
  --padding-site: var(--space-lg);
  --border-radius: 8px;
  --border-radius-lg: 12px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg-primary: #1a1a1a;
    --color-bg-secondary: #1f1e1d;
    --color-text-primary: #f5f5f5;
    --color-text-secondary: #a8a8a8;
    --color-text-tertiary: #707070;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-strong: rgba(255, 255, 255, 0.12);
  }
  .nav { 
    background: var(--color-bg-secondary);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04);
  }
  .nav--scrolled {
    background: #272624;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
  }
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
html { 
  font-size: 16px; 
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  overflow-x: hidden;
  width: 100%;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-weight: 500; line-height: 1.3; }
h1 { font-size: 2.25rem; }
h2 { font-size: 1.375rem; }
h3 { font-size: 1.125rem; }

.site-main { flex: 1; }


/* Navigation */
.nav {
  position: sticky;
  top: 0;
  background: var(--color-bg-secondary);
  z-index: 100;
  transition: all 0.3s ease;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
}
.nav--scrolled {
  background: #eeece8;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}
.nav__inner {
  max-width: var(--max-width-site);
  margin: 0 auto;
  padding: var(--space-md) var(--padding-site);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav__logo {
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.nav__logo a { cursor: pointer; }
.nav__links { display: flex; gap: var(--space-xl); list-style: none; flex-shrink: 0; }
.nav__link { font-size: 0.875rem; color: var(--color-text-secondary); transition: color 0.2s; white-space: nowrap; cursor: pointer; }
.nav__link:hover, .nav__link--active { color: var(--color-text-primary); }
.nav__link--active { font-weight: 500; }

/* Language toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  margin-left: var(--space-md);
  flex-shrink: 0;
}
.lang-toggle__link {
  color: var(--color-text-tertiary);
  text-decoration: none;
  padding: 4px 6px;
  border-radius: 4px;
  transition: color 0.2s ease;
}
.lang-toggle__link:hover { color: var(--color-text-secondary); }
.lang-toggle__link--active { color: var(--color-text-primary); }
.lang-toggle__link--static { cursor: default; pointer-events: none; }
.lang-toggle__separator { color: var(--color-text-tertiary); font-weight: 300; }

/* Hamburger button */
.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  margin-right: calc(var(--space-sm) * -1);
  position: relative;
  z-index: 102;
}
.nav__toggle-icon {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text-primary);
  position: relative;
  transition: background 0.2s;
}
.nav__toggle-icon::before,
.nav__toggle-icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-text-primary);
  transition: transform 0.2s;
}
.nav__toggle-icon::before { top: -6px; }
.nav__toggle-icon::after { top: 6px; }
.nav__toggle--open .nav__toggle-icon { background: transparent; }
.nav__toggle--open .nav__toggle-icon::before { transform: rotate(45deg) translate(4px, 4px); }
.nav__toggle--open .nav__toggle-icon::after { transform: rotate(-45deg) translate(4px, -4px); }

@media (max-width: 600px) {
  .nav__toggle { display: block; }
  .nav__links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg-primary);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--space-xl);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
    z-index: 99;
  }
  .nav__links--open { opacity: 1; visibility: visible; }
  .nav__link { font-size: 1.25rem; font-weight: 500; }
  .nav__inner { position: relative; z-index: 102; }
  .lang-toggle { margin-left: auto; margin-right: var(--space-md); }
}

/* Footer */
.footer { background: var(--color-bg-primary); margin-top: var(--space-3xl); }
.footer__inner {
  max-width: var(--max-width-site);
  margin: 0 auto;
  padding: var(--space-lg) var(--padding-site);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  flex-wrap: wrap;
  gap: var(--space-sm);
}
.footer__links { display: flex; gap: var(--space-lg); }
.footer__link { color: var(--color-text-secondary); transition: color 0.2s; cursor: pointer; }
.footer__link:hover { color: var(--color-text-primary); }
.email-link { border-bottom: 1px solid var(--color-border); }

@media (max-width: 420px) {
  .footer__inner { padding: var(--space-md); font-size: 0.75rem; }
  .footer__links { gap: var(--space-md); }
}

/* Hero */
.hero {
  position: relative;
  max-width: var(--max-width-site);
  margin: 0 auto;
  padding: var(--space-4xl) var(--padding-site) var(--space-3xl) calc(var(--padding-site) + 320px);
  width: 100%;
}
.hero__portrait-wrap {
  position: absolute;
  left: var(--padding-site);
  top: var(--space-4xl);
  width: 320px;
  z-index: 10;
}
.hero__portrait {
  width: 100%;
  height: auto;
  display: block;
}
.hero__label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
  display: block;
}
.hero__title {
  font-size: 2.75rem;
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
  max-width: 700px;
}
.hero__subtitle {
  max-width: 540px;
  color: var(--color-text-secondary);
  font-size: 1.0625rem;
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}
.hero__cta {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.hero__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all 0.2s;
}
.hero__btn--primary {
  background: var(--color-text-primary);
  color: var(--color-bg-primary);
  border: 1px solid var(--color-text-primary);
}
.hero__btn--primary:hover { opacity: 0.9; }
.hero__btn--secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-strong);
}
.hero__btn--secondary:hover { border-color: var(--color-text-primary); }

@media (min-width: 768px) { .hero__title { font-size: 3.25rem; } }
@media (max-width: 767px) {
  .hero {
    padding: var(--space-2xl) var(--space-md) var(--space-xl);
  }
  .hero__portrait-wrap {
    position: static;
    float: left;
    width: 120px;
    margin-right: 12px;
  }
  .hero__top { overflow: hidden; } /* BFC keeps label+title beside float */
  .hero__bottom { clear: both; }
  .hero__subtitle { font-size: 1rem; }
  .hero__title { font-size: 2rem; }
}
@media (max-width: 420px) {
  .hero { padding: var(--space-xl) var(--space-md) var(--space-lg); }
  .hero__portrait-wrap { width: 100px; }
  .hero__title { font-size: 1.75rem; line-height: 1.2; }
  .hero__subtitle { font-size: 0.9375rem; line-height: 1.6; }
}

/* Hero — portrait right variant (remove class to revert to left) */
.hero--portrait-right {
  padding-left: var(--padding-site);
  padding-right: calc(var(--padding-site) + 320px);
}
.hero--portrait-right .hero__portrait-wrap {
  left: auto;
  right: var(--padding-site);
}
@media (max-width: 767px) {
  .hero--portrait-right {
    display: grid;
    grid-template-columns: 1fr 130px;
    padding-right: var(--space-md);
    gap: 0;
  }
  .hero--portrait-right .hero__portrait-wrap {
    position: static;
    float: none;
    transform: none;
    width: 170px; /* overflows left ~40px → lines touch title */
    margin-left: -40px;
    grid-column: 2;
    grid-row: 1;
    align-self: center;
  }
  .hero--portrait-right .hero__top {
    grid-column: 1;
    grid-row: 1;
    overflow: visible;
  }
  .hero--portrait-right .hero__bottom {
    grid-column: 1 / -1;
    grid-row: 2;
    clear: none;
    padding-right: 0;
  }
}
@media (max-width: 420px) {
  .hero--portrait-right {
    grid-template-columns: 1fr 110px;
  }
  .hero--portrait-right .hero__portrait-wrap { width: 145px; margin-left: -35px; }
}

/* Labels */
.label {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
}

/* Page Header */
.page-header {
  max-width: var(--max-width-site);
  margin: 0 auto;
  padding: var(--space-3xl) var(--padding-site) var(--space-xl);
}
.page-header__title {
  font-size: 2.25rem;
  font-weight: 500;
  margin-bottom: var(--space-sm);
}
.page-header__description {
  color: var(--color-text-secondary);
  font-size: 1.0625rem;
  max-width: 480px;
}

@media (max-width: 600px) {
  .page-header { padding: var(--space-2xl) var(--space-md) var(--space-lg); }
  .page-header__title { font-size: 1.75rem; }
  .page-header__description { font-size: 1rem; }
}

/* Logos Section */
.logos-section {
  max-width: var(--max-width-site);
  margin: 0 auto;
  padding: var(--space-xl) var(--padding-site);
}
.logos-section__label {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-md);
}
.logos-section__grid {
  display: flex;
  gap: var(--space-2xl);
  align-items: center;
  flex-wrap: wrap;
}
.logos-section__logo {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text-tertiary);
  letter-spacing: -0.01em;
}

/* Articles Section */
.articles-section {
  max-width: var(--max-width-site);
  margin: 0 auto;
  padding: var(--space-2xl) var(--padding-site);
  width: 100%;
}
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-md);
}
.article-card { display: block; cursor: pointer; }
.article-card__image {
  aspect-ratio: 16 / 10;
  background: var(--color-bg-secondary);
  border-radius: var(--border-radius);
  margin-bottom: var(--space-md);
  overflow: hidden;
}
.article-card__image img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(1) sepia(0.06) brightness(1.1);
  transition: transform 0.3s ease, filter 0.6s ease;
}
.article-card:hover .article-card__image img {
  transform: scale(1.02);
  filter: grayscale(0) sepia(0) brightness(1);
}
.article-card__title {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: var(--space-xs);
  line-height: 1.4;
}
.article-card__hook {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: var(--space-xs);
}
.article-card__meta { display: flex; align-items: center; gap: var(--space-sm); }
.article-card__date { font-size: 0.8125rem; color: var(--color-text-tertiary); }
.article-card__badge {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border-strong);
  border-radius: 999px;
  padding: 1px 7px;
}
.articles-section__more { margin-top: var(--space-xl); }
.articles-section__more a {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border-strong);
  padding-bottom: 2px;
  cursor: pointer;
}
.articles-section__more a:hover { color: var(--color-text-primary); }

@media (max-width: 800px) { .articles-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) {
  .articles-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
  .articles-section, .work-section { padding: var(--space-xl) var(--space-md); }
  .footer { margin-top: var(--space-2xl); }
}
@media (max-width: 420px) {
  .articles-section, .work-section { padding: var(--space-lg) var(--space-md); }
}

/* Work Section */
.work-section {
  max-width: var(--max-width-site);
  margin: 0 auto;
  padding: var(--space-2xl) var(--padding-site);
}
.work-section--spaced { margin-top: var(--space-lg); padding-top: var(--space-xl); }
.work-section--no-top { padding-top: 0; }
.work-list { margin-top: var(--space-sm); }
.work-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
  gap: var(--space-md);
  transition: all 0.2s ease;
  cursor: pointer;
}
.work-item:first-child { border-top: 1px solid var(--color-border); }
.work-item:hover { padding-left: var(--space-sm); }
.work-item:hover .work-item__title { color: var(--color-text-secondary); }
.work-item__title { font-size: 1rem; font-weight: 500; transition: color 0.2s; }
.work-item__meta {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.work-item__arrow {
  color: var(--color-text-tertiary);
  transition: transform 0.2s;
}
.work-item:hover .work-item__arrow {
  transform: translateX(4px);
  color: var(--color-text-secondary);
}

/* Detailed work item */
.work-item--detailed {
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-xs);
}
.work-item--detailed .work-item__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  gap: var(--space-md);
}
.work-item__description {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

@media (max-width: 500px) {
  .work-item { flex-direction: column; align-items: flex-start; gap: var(--space-xs); }
  .work-item--detailed .work-item__header { flex-direction: column; align-items: flex-start; gap: var(--space-xs); }
  .work-item__meta { font-size: 0.75rem; }
}

/* NDA Note */
.nda-note {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
}
.nda-note__text {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}
.nda-note__text a {
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border-strong);
  cursor: pointer;
}
.nda-note__text a:hover { border-color: var(--color-text-primary); }

/* Testimonials Section */
.testimonials-section {
  max-width: var(--max-width-site);
  margin: 0 auto;
  padding: var(--space-2xl) var(--padding-site);
}
.testimonials-carousel {
  margin-top: var(--space-lg);
}
.testimonials-page {
  display: none;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}
.testimonials-page.is-active {
  display: grid;
}
.testimonial {
  padding: var(--space-lg);
  background: var(--color-bg-secondary);
  border-radius: var(--border-radius-lg);
  min-width: 0;
}
.testimonial__quote {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}
.testimonial__author {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-primary);
}
.testimonial__role {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
}
.testimonials-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}
.testimonials-btn {
  background: none;
  border: 1px solid var(--color-border-strong);
  border-radius: 50%;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  transition: all 0.2s ease;
  flex-shrink: 0;
}
.testimonials-btn:hover {
  border-color: var(--color-text-secondary);
  color: var(--color-text-primary);
}
.testimonials-btn:disabled {
  opacity: 0.3;
  cursor: default;
}
.testimonials-dots {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}
.testimonials-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-border-strong);
  transition: background 0.2s ease;
}
.testimonials-dot.is-active {
  background: var(--color-text-secondary);
}

@media (max-width: 700px) {
  .testimonials-page { grid-template-columns: 1fr; }
}

/* Contact CTA Section */
/* ── Contact CTA shared ─────────────────────────────── */
.contact-cta {
  max-width: var(--max-width-site);
  margin: 0 auto;
  padding: var(--space-3xl) var(--padding-site);
}
.contact-cta__link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-primary);
  text-decoration: none;
  border-bottom: 1px solid var(--color-border-strong);
  padding-bottom: 2px;
  cursor: pointer;
  transition: border-color 0.2s;
}
.contact-cta__link:hover { border-color: var(--color-text-primary); }
.contact-cta__certs {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-lg);
}

/* ── Variant A + C: single-column layout ────────────── */
.contact-cta--a .contact-cta__aside,
.contact-cta--c .contact-cta__aside { display: contents; }

/* ── Variant A: centered statement ──────────────────── */
.contact-cta--a {
  text-align: center;
}
.contact-cta--a .contact-cta__title {
  font-size: 2rem;
  font-weight: 500;
  margin-bottom: var(--space-md);
}
.contact-cta--a .contact-cta__text {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}
.contact-cta--a .contact-cta__links {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Variant B: two-column split ────────────────────── */
.contact-cta--b {
  border-top: 1px solid var(--color-border);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: var(--space-3xl);
}
.contact-cta--b .contact-cta__title {
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: var(--space-sm);
}
.contact-cta--b .contact-cta__text {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}
.contact-cta--b .contact-cta__certs {
  margin-bottom: var(--space-sm);
}
.contact-cta--b .contact-cta__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: flex-end;
  flex-shrink: 0;
}
.contact-cta--b .contact-cta__link {
  font-size: 1rem;
}
@media (max-width: 600px) {
  .contact-cta--b {
    grid-template-columns: 1fr;
  }
  .contact-cta--b .contact-cta__links {
    align-items: flex-start;
    flex-direction: row;
  }
}

/* ── Variant C: large type, centered, statement feel ── */
.contact-cta--c {
  text-align: center;
  padding-top: var(--space-4xl);
  padding-bottom: var(--space-4xl);
}
.contact-cta--c .contact-cta__title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 500;
  line-height: 1.2;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}
.contact-cta--c .contact-cta__text {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 440px;
  margin-left: auto;
  margin-right: auto;
}
.contact-cta--c .contact-cta__links {
  display: flex;
  gap: var(--space-xl);
  justify-content: center;
  flex-wrap: wrap;
}
.contact-cta--c .contact-cta__link {
  font-size: 1rem;
}

/* About Page */
.about {
  max-width: var(--max-width-site);
  margin: 0 auto;
  padding: var(--space-3xl) var(--padding-site);
}
.about__grid {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: var(--space-3xl);
  align-items: start;
}
.about__content h1 {
  font-size: 2.25rem;
  margin-bottom: var(--space-lg);
}
.about__bio {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text-secondary);
}
.about__bio p { margin-bottom: var(--space-lg); }
.about__bio p:last-child { margin-bottom: 0; }
.about__bio strong { color: var(--color-text-primary); font-weight: 500; }
.about__bio h2 {
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}
.about__bio h3 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}
.about__section {
  margin-top: var(--space-2xl);
}
.about__section-title {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-md);
}
.about__skills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}
.about__skill {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  padding: var(--space-xs) var(--space-md);
  border-radius: 999px;
}
.about__certs {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.about__cert {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-lg);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}
.about__cert:last-child { border-bottom: none; }
.about__cert-name {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-primary);
  flex-shrink: 0;
}
.about__cert-name--link {
  text-decoration: none;
  transition: opacity 0.15s;
}
.about__cert-name--link::after {
  content: ' ↗';
  font-size: 0.75em;
  opacity: 0;
  transition: opacity 0.15s;
}
.about__cert-name--link:hover {
  opacity: 0.6;
}
.about__cert-name--link:hover::after {
  opacity: 1;
}
.about__cert-detail {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  text-align: right;
}
.about__book {
  padding: var(--space-lg);
  background: var(--color-bg-secondary);
  border-radius: var(--border-radius-lg);
}
.about__book--with-cover {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}
.about__book-cover {
  flex-shrink: 0;
  width: 120px;
  display: block;
  transition: transform 0.3s ease;
}
.about__book-cover:hover {
  transform: translateY(-3px);
}
.about__book-cover img {
  width: 100%;
  height: auto;
  display: block;
}
.about__book-body {
  flex: 1;
  min-width: 0;
}
.about__book-title {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-primary);
  line-height: 1.4;
  margin-bottom: var(--space-xs);
}
.about__book-meta {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-md);
}
.about__book-description {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}
.about__book-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border-strong);
  padding-bottom: 1px;
  transition: border-color 0.2s;
}
.about__book-link:hover { border-color: var(--color-text-primary); }

.about__availability {
  margin-top: var(--space-2xl);
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
}
.about__availability-title {
  font-size: 0.9375rem;
  font-weight: 500;
  margin-bottom: var(--space-sm);
}
.about__availability-text {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}
.about__sidebar { position: sticky; top: calc(60px + var(--space-xl)); }
.about__photo {
  width: 100%;
  aspect-ratio: 1;
  background: var(--color-bg-secondary);
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--space-lg);
  overflow: hidden;
}
.about__photo img { width: 100%; height: 100%; object-fit: cover; }

@media (max-width: 700px) {
  .about__grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .about__sidebar {
    order: -1;
    position: static;
  }
  .about__photo {
    width: 120px;
    margin-bottom: 0;
  }
}

/* Article Page */
.article {
  max-width: var(--max-width-site);
  margin: 0 auto;
  padding: var(--space-3xl) var(--padding-site);
}
.article__back {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  display: inline-block;
  margin-bottom: var(--space-lg);
  cursor: pointer;
}
.article__back:hover { color: var(--color-text-primary); }
.article__header { margin-bottom: var(--space-md); }
.article__title {
  font-size: 2.25rem;
  font-weight: 500;
  line-height: 1.2;
  margin-bottom: var(--space-sm);
}
.article__meta { font-size: 0.875rem; color: var(--color-text-tertiary); }
/* Lede — shared between article and project pages */
.article__lede,
.project__lede {
  max-width: var(--max-width-content);
  font-size: 1.1875rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
}

.article__content { max-width: var(--max-width-content); }
.article__content h2 {
  font-size: 1.375rem;
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}
.article__content h3 {
  font-size: 1.125rem;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}
.article__content p {
  margin-bottom: var(--space-lg);
  color: var(--color-text-secondary);
}
.article__content ul, .article__content ol {
  margin-bottom: var(--space-lg);
  padding-left: var(--space-lg);
  color: var(--color-text-secondary);
}
.article__content li { margin-bottom: var(--space-sm); }
.article__content blockquote {
  border-left: 2px solid var(--color-border-strong);
  padding: var(--space-sm) 0 var(--space-sm) var(--space-lg);
  margin: var(--space-xl) 0;
  font-style: italic;
  color: var(--color-text-secondary);
}
.article__content blockquote p { margin-bottom: var(--space-sm); }
.article__content blockquote p:last-child { margin-bottom: 0; }
.article__content cite {
  display: block;
  font-size: 0.875rem;
  font-style: normal;
  color: var(--color-text-tertiary);
  margin-top: var(--space-sm);
}
.article__content cite::before { content: '— '; }
.article__content a {
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border-strong);
}

@media (max-width: 600px) {
  .article { padding: var(--space-2xl) var(--space-md); }
  .article__title { font-size: 1.75rem; }
  .article__lede,
  .project__lede { font-size: 1.0625rem; }
}

/* Project Page */
.project {
  max-width: var(--max-width-site);
  margin: 0 auto;
  padding: var(--space-3xl) var(--padding-site);
}
.project__back {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  display: inline-block;
  margin-bottom: var(--space-lg);
  cursor: pointer;
}
.project__back:hover { color: var(--color-text-primary); }
.project__header { margin-bottom: var(--space-md); }
.project__title {
  font-size: 2.25rem;
  font-weight: 500;
  margin-bottom: var(--space-sm);
}
.project__subtitle {
  font-size: 1.125rem;
  line-height: 1.5;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
  font-style: italic;
}
.project__meta { font-size: 0.875rem; color: var(--color-text-tertiary); }

/* Cover image */
.project__cover {
  margin-bottom: var(--space-2xl);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}
.project__cover img {
  width: 100%;
  height: auto;
  display: block;
}

/* Description — full width above cover image */
.project__description {
  font-size: 1.1875rem;
  line-height: 1.65;
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-2xl);
  max-width: var(--max-width-content);
}

/* Body — content + what I did sidebar */
.project__body {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: var(--space-2xl);
  align-items: start;
  margin-top: var(--space-2xl);
}

/* Stats — boxes in a row below cover image */
.project__stats {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
  margin-top: var(--space-xl);
}

.project__stat {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding: var(--space-lg);
  background: var(--color-bg-secondary);
  border-radius: var(--border-radius);
}

.project__stat-value {
  font-size: 1.75rem;
  font-weight: 500;
  color: var(--color-text-primary);
  line-height: 1;
  letter-spacing: -0.02em;
}

.project__stat-label {
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-text-tertiary);
}

/* What I did */
.project__what-i-did {
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-lg);
}

.project__section-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-sm);
}

.project__what-i-did ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.project__what-i-did li {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  padding-left: 1.25rem;
  position: relative;
}

.project__what-i-did li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-text-tertiary);
}

/* Project blocks content — mirrors article__content prose styles */
.project__content h2 {
  font-size: 1.375rem;
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}
.project__content h3 {
  font-size: 1.125rem;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}
.project__content p {
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
  line-height: 1.7;
}
.project__content ul,
.project__content ol {
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
  color: var(--color-text-secondary);
}
.project__content li { margin-bottom: var(--space-sm); }
.project__content blockquote {
  border-left: 2px solid var(--color-border-strong);
  padding: var(--space-sm) 0 var(--space-sm) var(--space-lg);
  margin: var(--space-xl) 0;
  font-style: italic;
  color: var(--color-text-secondary);
}
.project__content figure {
  margin: var(--space-xl) 0;
}
.project__content figure img {
  width: 100%;
  height: auto;
  border-radius: var(--border-radius);
}
.project__content figure figcaption {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  margin-top: var(--space-sm);
}

@media (max-width: 700px) {
  .project__body { grid-template-columns: 1fr; }
  .project__stats { flex-wrap: wrap; }
  .project__stat { min-width: calc(50% - var(--space-md)); }
}

@media (max-width: 600px) {
  .project { padding: var(--space-2xl) var(--space-md); }
  .project__title { font-size: 1.75rem; }
}

/* Earlier Work Page */
.earlier-work__intro {
  max-width: var(--max-width-content);
  margin-bottom: var(--space-3xl);
  color: var(--color-text-secondary);
  line-height: 1.7;
}
.earlier-work__intro p { margin-bottom: var(--space-md); }
.earlier-work__projects {
  max-width: var(--max-width-content);
  display: flex;
  flex-direction: column;
  gap: var(--space-3xl);
}
.earlier-work__project {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-2xl);
  align-items: start;
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border);
}
.earlier-work__project:first-child { border-top: none; padding-top: 0; }
.earlier-work__project-image {
  border-radius: var(--border-radius);
  overflow: hidden;
  background: var(--color-bg-secondary);
  aspect-ratio: 4/3;
}
.earlier-work__project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.earlier-work__project-title {
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: var(--space-xs);
}
.earlier-work__project-meta {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-md);
}
.earlier-work__project-desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}
@media (max-width: 700px) {
  .earlier-work__project {
    grid-template-columns: 1fr;
  }
}

/* Password Page */
.password-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-2xl) var(--padding-site);
}
.password-modal {
  max-width: 360px;
  width: 100%;
  text-align: center;
}
.password-modal__title {
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: var(--space-sm);
}
.password-modal__description {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  line-height: 1.6;
}
.password-modal__input {
  width: 100%;
  padding: var(--space-md);
  font-family: inherit;
  font-size: 1rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--border-radius);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
  text-align: center;
}
.password-modal__input:focus {
  outline: none;
  border-color: var(--color-text-tertiary);
}
.password-modal__submit {
  width: 100%;
  padding: var(--space-md);
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
  background: var(--color-text-primary);
  color: var(--color-bg-primary);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: opacity 0.2s;
}
.password-modal__submit:hover { opacity: 0.9; }
.password-modal__footer {
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  margin-top: var(--space-lg);
}
.password-modal__footer a {
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
  cursor: pointer;
}


/* Article Cover */
.article__cover {
  margin-bottom: var(--space-2xl);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}
.article__cover img {
  width: 100%;
  height: auto;
  display: block;
}

/* Image blocks with optional captions */
.article__source {
  max-width: var(--max-width-content);
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
}
.article__source a {
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border-strong);
  padding-bottom: 1px;
  transition: color 0.2s, border-color 0.2s;
}
.article__source a:hover {
  color: var(--color-text-primary);
  border-color: var(--color-text-primary);
}

.block-video {
  margin: var(--space-2xl) 0;
}
.block-video__wrapper {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--border-radius);
  overflow: hidden;
  background: var(--color-bg-secondary);
}
.block-video__wrapper iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}
.block-video figcaption {
  margin-top: var(--space-sm);
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  line-height: 1.5;
}

.block-image {
  margin: var(--space-2xl) 0;
}
.block-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--border-radius);
}
.block-image figcaption {
  margin-top: var(--space-sm);
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
  line-height: 1.5;
}

/* Error page */
.error-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 120px);
  padding: var(--space-4xl) var(--padding-site);
}
.error-page__inner {
  text-align: center;
  max-width: 480px;
}
.error-page__code {
  display: block;
  font-size: clamp(6rem, 20vw, 10rem);
  font-weight: 500;
  line-height: 1;
  color: var(--color-border-strong);
  letter-spacing: -0.04em;
  margin-bottom: var(--space-lg);
  user-select: none;
}
.error-page__title {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: var(--space-md);
}
.error-page__desc {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-xl);
}
.error-page__link {
  display: inline-block;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border-strong);
  padding-bottom: 1px;
  transition: border-color 0.2s;
}
.error-page__link:hover {
  border-color: var(--color-text-primary);
}