:root {
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4.5rem;

  --radius-sm: 0.4rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.2rem;

  --font-display: "Space Grotesk", "Trebuchet MS", sans-serif;
  --font-body: "IBM Plex Serif", "Times New Roman", serif;

  --shadow-soft: 0 10px 28px rgba(8, 20, 20, 0.08);
  --line-width: 1px;

  --motion-fast: 160ms ease;
  --motion-base: 240ms ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  line-height: 1.6;
  background: var(--color-bg);
  color: var(--color-text);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(
      to right,
      transparent 0,
      transparent calc(100% - 1px),
      var(--color-grid)
    ),
    linear-gradient(
      to bottom,
      transparent 0,
      transparent calc(100% - 1px),
      var(--color-grid)
    );
  background-size: 48px 48px;
  opacity: 0.35;
  z-index: -1;
}

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

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--color-accent-strong);
}

button,
input,
textarea {
  font: inherit;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--font-display);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-heading);
}

p {
  margin: 0;
}

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

li {
  list-style: none;
}

.skip-link {
  position: absolute;
  left: var(--space-md);
  top: -100%;
  z-index: 999;
  background: var(--color-bg-elevated);
  color: var(--color-heading);
  border: var(--line-width) solid var(--color-border-strong);
  padding: var(--space-sm) var(--space-md);
}

.skip-link:focus {
  top: var(--space-md);
}

.eyebrow {
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.lead {
  max-width: 64ch;
  font-size: 1.08rem;
  color: var(--color-text-soft);
}

.panel-header {
  display: grid;
  gap: var(--space-sm);
}

.panel-text {
  max-width: 72ch;
  color: var(--color-text-soft);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}