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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image:
    linear-gradient(rgba(34, 197, 94, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 197, 94, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  background-attachment: fixed;
}

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

a {
  color: var(--color-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: #4ade80;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  box-shadow: var(--shadow-focus);
}

h1,
h2,
h3,
h4 {
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-4);
}

h1 {
  font-size: var(--h1);
}

h2 {
  font-size: var(--h2);
}

h3 {
  font-size: var(--h3);
}

p {
  margin: 0 0 var(--space-4);
  color: var(--color-text-secondary);
}

p:last-child {
  margin-bottom: 0;
}

ul,
ol {
  margin: 0 0 var(--space-4);
  padding-left: 1.25rem;
  color: var(--color-text-secondary);
}

code,
.mono {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.container--narrow {
  width: min(100% - 2rem, var(--content-narrow));
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.site-main {
  padding-block: var(--space-7);
  min-height: calc(100vh - var(--header-h) - 12rem);
}

@keyframes progress-fill {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}