:root {
  color-scheme: light dark;
  --grey-100: oklch(98% 0 0);
  --grey-400: light-dark(oklch(48% 0 0), oklch(70% 0 0));
  --grey-800: oklch(25% 0 0);
  --grey-950: oklch(12% 0 0);
  --body-bg: light-dark(var(--grey-100), var(--grey-950));
  --body-text: light-dark(var(--grey-800), oklch(92% 0 0));
  --heading-text: light-dark(oklch(15% 0 0), #ffffff);
  --border-color: light-dark(oklch(90% 0 0), oklch(30% 0 0));
  --link-hover: light-dark(oklch(20% 0 0), #ffffff);
  --underline-subtle: light-dark(rgba(0,0,0,0.15), rgba(255,255,255,0.2));
  --font-primary: system-ui, -apple-system, sans-serif;
  --space-md: clamp(1rem, 0.5rem + 1.5vw, 1.5rem);
  --space-xl: clamp(2.5rem, 5vw, 4rem);
  --container-width: 75ch;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scrollbar-gutter: stable; }

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--body-text);
  background-color: var(--body-bg);
  max-inline-size: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-md);
  padding-block: var(--space-xl);
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  inset-block-start: -100%;
  inset-inline-start: var(--space-md);
  padding: 0.5rem 1rem;
  background: var(--body-bg);
  color: var(--body-text);
  border: 1px solid var(--border-color);
  border-radius: 0 0 4px 4px;
  font-size: 0.9rem;
  text-decoration: none;
  z-index: 100;

  &:focus {
    inset-block-start: 0;
  }
}

header {
  margin-block-end: var(--space-md);
  padding-block-end: 0.75rem;
  border-block-end: 1px solid var(--border-color);
}

nav ul {
  display: flex;
  gap: var(--space-md);
  list-style: none;
  margin-block-end: var(--space-md);
  font-size: 0.9rem;
  text-transform: lowercase;
}

.header-title-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-block-end: 0.25rem;
  flex-wrap: wrap;

  & h1 {
    margin-block-end: 0;
    font-size: clamp(1.8rem, 6vw, 3.5rem);
    line-height: 1;
    white-space: nowrap;
  }
}

.header-logo {
  height: 3em;
  width: auto;
  filter: light-dark(none, invert(0.9));
  transition: transform 0.2s ease;

  &:active { transform: scale(0.95); }
}

.header-tagline {
  color: var(--grey-400);
  font-size: 1.1rem;
  flex: 1 1 100%;
  margin-block-start: 0.25rem;
}

section h2 {
  margin-block-start: 1rem;
  margin-block-end: 1rem;
  color: var(--heading-text);
  font-size: 1.5rem;
}

.section-subheading {
  margin-block: var(--space-md);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--heading-text);
}

.bio-subheading {
  margin-block-end: 1rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--heading-text);
}

p {
  margin-block-end: var(--space-md);
  text-wrap: pretty;
  display: block;
  width: 100%;
}

address {
  font-style: normal;

  & p { margin-block-end: 0.5rem; }
}

.faq-item p { padding-block: 0.5rem; }

a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--underline-subtle);
  text-decoration-thickness: 0.5px;
  text-underline-offset: 0.3em;
  transition: all 0.25s ease;

  &:hover {
    color: var(--link-hover);
    text-decoration-color: var(--link-hover);
    text-decoration-thickness: 1.5px;
  }
}

nav a { text-decoration: none; }

.bio-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
  margin-block: var(--space-xl);
}

.bio-text { width: 100%; }

.bio-media {
  aspect-ratio: 1 / 1;
  background: var(--border-color);
  border-radius: 4px;
  overflow: hidden;
  width: 100%;

  & img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }
}

.faq-item {
  border-block-end: 0.5px solid var(--border-color);

  & summary {
    padding-block: var(--space-md);
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    padding-inline-start: 0;

    &::after { content: '↓'; transition: transform 0.3s; }
  }

  &[open] summary::after { transform: rotate(180deg); }
}

.accordion-inner {
  padding-block: 0.5rem 1.5rem;
  padding-inline-start: 0;

  & ul {
    margin-inline-start: 1.2rem;
    margin-block-end: 1rem;
    list-style-type: square;
  }
}

.meta-note {
  font-size: 0.85rem;
  color: var(--grey-400);
}

footer {
  margin-block-start: var(--space-xl);
  padding-block: var(--space-md);
  border-block-start: 1px solid var(--border-color);
  font-size: 0.85rem;
  color: var(--grey-400);
}

@media (max-width: 650px) {
  .bio-content { grid-template-columns: 1fr; }
}