/* Reset, base typography, layout primitives and motion defaults. */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + var(--space-4));
  background: var(--ink-950);
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--devko-white);
  background: var(--ink-950);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}

html:has(dialog[open]) {
  overflow: hidden;
}

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

img {
  height: auto;
}

:where(h1, h2, h3, h4, p, figure, blockquote, dl, dd) {
  margin: 0;
}

:where(ul[role="list"], ol[role="list"]) {
  list-style: none;
  margin: 0;
  padding: 0;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--lh-heading);
  letter-spacing: var(--tracking-tight);
  text-wrap: balance;
}

p,
li {
  text-wrap: pretty;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  letter-spacing: inherit;
}

button {
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--focus, var(--lime-500));
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

/* Sections and <main> receive programmatic focus after in-page navigation; no ring needed. */
[tabindex="-1"]:focus {
  outline: none;
}

::selection {
  background: var(--lime-500);
  color: var(--devko-black);
}

[hidden] {
  display: none !important;
}

/* ---------- Accessibility helpers ---------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: var(--space-3);
  left: var(--space-3);
  z-index: var(--z-skip);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--lime-500);
  color: var(--devko-black);
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-200%);
}

.skip-link:focus-visible {
  transform: none;
  outline-color: var(--devko-white);
}

/* ---------- Layout primitives ---------- */
.container {
  width: 100%;
  max-width: calc(var(--container) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  position: relative;
  padding-block: var(--section-pad);
  background: var(--bg);
  color: var(--fg);
}

/* ---------- Type primitives ---------- */
.label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--fg-muted);
}

.label::before {
  content: "";
  flex: none;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 2px;
  background: var(--accent);
}

.label--plain::before {
  display: none;
}

.h2 {
  font-size: var(--fs-h2);
  line-height: var(--lh-snug);
  letter-spacing: var(--tracking-display);
  font-weight: 600;
}

.h3 {
  font-size: var(--fs-h3);
  line-height: var(--lh-snug);
}

.lead {
  font-size: var(--fs-lead);
  line-height: 1.55;
  color: var(--fg-muted);
  max-width: 42rem;
}

.muted {
  color: var(--fg-muted);
}

.section-head {
  display: grid;
  gap: var(--space-5);
  max-width: 56rem;
  margin-bottom: clamp(var(--space-7), 2rem + 4vw, var(--space-9));
}

/* ---------- Motion ----------
 * `.js-motion` is set on <html> only when JS runs and the visitor has not asked for
 * reduced motion, so content is never hidden without a script to reveal it.
 */
.js-motion .reveal {
  opacity: 0;
  transform: translate3d(0, 1.5rem, 0);
  transition:
    opacity var(--dur-reveal) var(--ease-out),
    transform var(--dur-reveal) var(--ease-out);
  transition-delay: calc(var(--i, 0) * 70ms);
}

.js-motion .reveal.is-visible {
  opacity: 1;
  transform: none;
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }
}