:root {
  --color-ink: #16232e;
  --color-ink-soft: #3b4652;
  --color-slate: #8b93a1;
  --color-slate-light: #d7dbe0;
  --color-bg: #f3f4f2;
  --color-surface: #ffffff;
  --color-accent: #4c7a73;
  --color-accent-dark: #365650;
  --color-accent-soft: #e3ece9;

  --font-heading: "Source Serif 4", "Georgia", serif;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1.25rem;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4.5rem;
  --space-7: 6.5rem;

  --container-max: 74rem;

  --shadow-card: 0 1px 2px rgba(22, 35, 46, 0.06), 0 8px 24px rgba(22, 35, 46, 0.06);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-ink);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

body.is-nav-open {
  overflow: hidden;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin: 0;
  color: var(--color-ink);
}

p {
  margin: 0;
}

a {
  color: var(--color-accent-dark);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

img {
  max-width: 100%;
  display: block;
}

svg {
  display: block;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

li {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

address {
  font-style: normal;
}

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