/* ==========================================================================
   BASE — tokens, reset, motion. Shared by every page.
   Fonts from the Figma file: Google Sans Code (headings, UI), Geist (body).
   ========================================================================== */

:root {
  --bg: #ffffff;
  --ink: #000000;
  --ink-2: #3f3f3f;
  --muted: #9a9a9a;
  --line: #d9d9d9;
  --chip: #efefef;
  --placeholder: #d9d9d9;

  --font-mono: "Google Sans Code", ui-monospace, SFMono-Regular, Menlo, monospace;
  --font-sans: "Geist", "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 0.35s;
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
}

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

a {
  color: inherit;
}

h1, h2, h3, p, ul, figure {
  margin: 0;
}

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Accessible screen-reader & search engine text */
.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;
}


/* ---------- Page transitions (cross-document View Transitions) ---------- */
@view-transition {
  navigation: auto;
}

::view-transition-old(root) {
  animation: vt-out 0.28s var(--ease) both;
}

::view-transition-new(root) {
  animation: vt-in 0.5s var(--ease) both;
}

@keyframes vt-out {
  to { opacity: 0; transform: translateY(-8px); }
}

@keyframes vt-in {
  from { opacity: 0; transform: translateY(12px); }
}

/* Fallback fade for browsers without View Transitions (toggled by site.js) */
.page-fade {
  opacity: 0;
  transition: opacity 0.26s var(--ease);
}

.page-fade.is-ready {
  opacity: 1;
  transition-duration: 0.5s;
}

/* Late-arriving images fade in (site.js initImageFade) */
.img-wait {
  opacity: 0;
}

.img-in {
  animation: img-in 0.6s var(--ease);
}

@keyframes img-in {
  from { opacity: 0; }
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after,
  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation-duration: 0.01ms !important;
    animation-delay: 0s !important;
    transition-duration: 0.01ms !important;
  }
}