.container {
  width: min(calc(100% - 2 * var(--space-6)), var(--content-width));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  border-bottom: 1px solid transparent;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(16px);
  transition: border-color var(--dur) ease, box-shadow var(--dur) ease, background-color var(--dur) ease;
}

.site-header.is-scrolled {
  border-color: var(--border);
  box-shadow: var(--shadow-soft);
}

.nav {
  display: flex;
  min-height: 4.5rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.nav__brand {
  flex: 0 0 auto;
  color: var(--accent-text);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-decoration: none;
}

.nav__controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav__toggle,
.theme-toggle,
.nav__palette {
  display: inline-flex;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
}

.nav__toggle {
  display: none;
  padding: var(--space-2) var(--space-3);
  gap: var(--space-2);
  cursor: pointer;
}

.nav__toggle-icon {
  display: grid;
  width: 1.1rem;
  gap: 4px;
}

.nav__toggle-icon span {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform var(--dur) ease, opacity var(--dur) ease;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon span:first-child {
  transform: translateY(6px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon span:nth-child(2) {
  opacity: 0;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-icon span:last-child {
  transform: translateY(-6px) rotate(-45deg);
}

.theme-toggle {
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  cursor: pointer;
}

.theme-toggle__icon {
  display: none;
  width: 1.1rem;
  height: 1.1rem;
  flex: 0 0 auto;
}

.theme-toggle[data-current-theme="dark"] .theme-toggle__icon--sun,
.theme-toggle[data-current-theme="light"] .theme-toggle__icon--moon {
  display: block;
}

.nav__palette {
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-heading);
  font-size: .82rem;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: clamp(var(--space-2), 1.6vw, var(--space-6));
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav__link {
  color: var(--text-muted);
  font-size: .88rem;
  text-decoration: none;
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--accent-text);
}

main {
  overflow: clip;
}

.section {
  padding-block: var(--section-space);
  scroll-margin-top: 5rem;
}

.section--hero {
  position: relative;
  isolation: isolate;
  display: flex;
  min-height: min(780px, calc(100svh - 4.5rem));
  align-items: center;
  padding-block: clamp(5rem, 13vh, 9rem);
}

.hero__canvas {
  position: absolute;
  z-index: -1;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: .72;
  pointer-events: none;
}

.section--hero .container {
  position: relative;
  width: min(calc(100% - 2 * var(--space-6)), var(--content-width));
}

.hero__identity {
  --hero-name-size: clamp(1.25rem, 9.375vw - .625rem, 5rem);
  display: flex;
  min-width: 0;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.hero__portrait {
  width: calc(var(--hero-name-size) * 2.16);
  height: calc(var(--hero-name-size) * 2.16);
  aspect-ratio: 1;
  flex: 0 0 auto;
  margin: 0;
}

.hero__portrait img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 1;
  border: 1px solid var(--border);
  border-radius: 50%;
  box-shadow: var(--shadow-soft);
  object-fit: cover;
}

.hero__content { min-width: 0; }
.hero__identity h1 {
  min-width: 0;
  margin: 0;
  font-size: var(--hero-name-size);
}

.eyebrow {
  margin-bottom: var(--space-4);
  color: var(--accent-text);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.hero__role {
  margin-bottom: var(--space-4);
  color: var(--text-muted);
  font-family: var(--font-heading);
  font-size: clamp(1rem, 1.7vw, 1.25rem);
}

.hero__summary {
  max-width: 58ch;
  margin-bottom: var(--space-8);
  color: var(--text-muted);
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
}

.hero__actions,
.hero__socials,
.contact__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.hero__actions {
  margin-bottom: var(--space-8);
}

.hero__socials {
  gap: var(--space-6);
}

.hero__socials a,
.contact__links a {
  color: var(--text-muted);
}

.hero__socials a:hover,
.contact__links a:hover {
  color: var(--accent-text);
}

.hero__social-placeholder {
  color: var(--text-muted);
  font-size: .9rem;
}

.about__grid {
  display: grid;
  gap: var(--space-8);
}

.about__copy p {
  color: var(--text-muted);
}

.about__facts {
  display: grid;
  gap: var(--space-4);
  margin: 0;
  padding: 0;
  list-style: none;
}

.about__fact {
  padding: var(--space-6);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.about__fact strong {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--accent-text);
  font-family: var(--font-heading);
  font-size: .82rem;
}

.about__fact span {
  color: var(--text-muted);
}

.contact__intro {
  margin-bottom: var(--space-8);
  color: var(--text-muted);
}

.site-footer {
  padding-block: var(--space-6);
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: .9rem;
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
}

.site-footer__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
}

.back-to-top {
  color: var(--accent-text);
  font-weight: 700;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 767px) {
  .nav {
    position: relative;
  }

  .nav--enhanced .nav__toggle {
    display: inline-flex;
  }

  .nav__toggle-label { display: none; }

  .nav__list {
    position: absolute;
    top: calc(100% + 1px);
    right: 0;
    left: 0;
    display: flex;
    align-items: stretch;
    flex-direction: column;
    gap: 0;
    padding: var(--space-2);
    border: 1px solid var(--border);
    border-radius: 0 0 var(--radius) var(--radius);
    background: var(--bg);
    box-shadow: var(--shadow-soft);
  }

  .nav--enhanced .nav__list {
    display: none;
  }

  .nav--enhanced .nav__list.is-open {
    display: flex;
  }

  .nav__link {
    display: flex;
    min-height: 44px;
    align-items: center;
    padding-inline: var(--space-3);
  }
}

@media (min-width: 768px) {
  .hero__identity {
    --hero-name-size: clamp(2.4rem, 6vw + 1rem, 5rem);
  }

  .about__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(250px, .8fr);
    align-items: start;
  }
}