:root {
  --font-sans: 'Geist', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --font-emoji: 'Apple Color Emoji', 'Segoe UI Emoji', 'Noto Color Emoji', sans-serif;

  --color-paper: oklch(0.985 0.005 80);
  --color-paper-subtle: oklch(0.965 0.008 80);
  --color-ink: oklch(0.22 0.015 60);
  --color-ink-muted: oklch(0.48 0.015 60);
  --color-ink-faint: oklch(0.65 0.012 60);
  --color-rule: oklch(0.92 0.008 80);
  --color-accent: oklch(0.66 0.18 35);
  --color-accent-strong: oklch(0.58 0.20 32);
  --color-todo-bg: oklch(0.96 0.04 35);

  --size-body: clamp(1rem, 0.95rem + 0.25vw, 1.0625rem);
  --size-hero: clamp(2.25rem, 1.5rem + 3vw, 3.5rem);
  --size-section: 1.125rem;
  --size-small: 0.875rem;

  --leading-body: 1.6;
  --leading-tight: 1.15;

  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  --content-max: 38rem;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: var(--size-body);
  line-height: var(--leading-body);
  color: var(--color-ink);
  background: var(--color-paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: 'ss01', 'cv11';
}

body {
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: clamp(1.5rem, 5vw, 3rem);
  padding-block: clamp(3rem, 8vw, 6rem);
}

.lang-toggle {
  text-align: right;
  font-family: var(--font-mono);
  font-size: var(--size-small);
  color: var(--color-ink-faint);
  margin-bottom: var(--space-8);
  letter-spacing: 0.02em;
}

.lang-toggle [aria-current="true"] {
  color: var(--color-ink);
}

.lang-toggle a {
  color: var(--color-ink-muted);
  text-decoration: none;
  text-underline-offset: 4px;
  transition: color 150ms ease-out, text-decoration-thickness 150ms ease-out;
}

.lang-toggle a:hover {
  color: var(--color-accent-strong);
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: 1px;
}

.lang-toggle__sep {
  margin-inline: 0.4em;
  color: var(--color-ink-faint);
}

.hero {
  margin-bottom: var(--space-9);
}

.hero__greeting {
  font-size: var(--size-hero);
  font-weight: 500;
  line-height: var(--leading-tight);
  letter-spacing: -0.025em;
  margin-bottom: var(--space-5);
  text-wrap: balance;
}

.hero__greeting .emoji {
  margin-inline-end: 0.15em;
}

.hero__intro {
  color: var(--color-ink-muted);
  max-width: 32rem;
  text-wrap: pretty;
}

section {
  margin-block: var(--space-9);
}

section h2 {
  font-size: var(--size-section);
  font-weight: 500;
  letter-spacing: -0.005em;
  margin-bottom: var(--space-5);
  color: var(--color-ink);
  display: flex;
  align-items: center;
  gap: 0.4em;
}

.kv {
  display: grid;
  grid-template-columns: minmax(auto, 7.5rem) 1fr;
  gap: var(--space-3) var(--space-5);
  align-items: baseline;
}

.kv dt {
  font-family: var(--font-mono);
  font-size: var(--size-small);
  color: var(--color-ink-muted);
  font-feature-settings: 'tnum';
  font-weight: 400;
}

.kv dd {
  color: var(--color-ink);
}

@media (max-width: 28rem) {
  .kv {
    grid-template-columns: 1fr;
    gap: var(--space-2) 0;
  }
  .kv dt {
    margin-top: var(--space-3);
  }
  .kv dd {
    margin-bottom: var(--space-2);
  }
}

a {
  color: inherit;
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  transition: text-decoration-thickness 150ms ease-out,
              color 150ms ease-out;
}

a:hover {
  color: var(--color-accent-strong);
  text-decoration-thickness: 2px;
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: 2px;
}

.chip {
  font-family: var(--font-mono);
  font-size: var(--size-small);
  color: var(--color-ink-muted);
}

strong {
  font-weight: 600;
}

.todo {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--color-todo-bg);
  color: var(--color-accent-strong);
  padding: 0.05em 0.35em;
  border-radius: 2px;
  white-space: normal;
}

.elsewhere {
  margin-top: var(--space-4);
  color: var(--color-ink-muted);
  font-size: var(--size-small);
}

.contact {
  font-size: 1.125rem;
}

.emoji {
  font-family: var(--font-emoji);
  font-style: normal;
  display: inline-block;
  vertical-align: -0.05em;
}

footer {
  margin-top: var(--space-9);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-rule);
  color: var(--color-ink-faint);
  font-size: var(--size-small);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

::selection {
  background: var(--color-accent);
  color: var(--color-paper);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

@media print {
  body {
    max-width: none;
    padding: 1.5cm;
    color: #000;
    background: #fff;
  }
  a {
    color: #000;
    text-decoration-color: #000;
  }
  a[href^="mailto:"]::after {
    content: '';
  }
  .todo {
    background: none;
    color: #000;
    padding: 0;
  }
  footer {
    border-top: 1px solid #000;
  }
}