/* ------------------------------------------------------------------
   Base, typography, utilities
   ------------------------------------------------------------------ */

*, *::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) + 1rem);
  background: var(--paper);
}

html.has-menu { overflow: hidden; }

body {
  margin: 0;
  overflow-x: clip;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.55;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  transition: background-color 0.4s var(--ease-out), color 0.4s var(--ease-out);
}

.site-main { flex: 1; }

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

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

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

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

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 360;
  line-height: 1.02;
  letter-spacing: -0.025em;
  font-variation-settings: "SOFT" 40, "WONK" 0;
  text-wrap: balance;
}

h1 em, h2 em, h3 em, .display em {
  font-style: italic;
  font-weight: 300;
  color: var(--moss);
  font-variation-settings: "SOFT" 100, "WONK" 1;
}

p { margin: 0; text-wrap: pretty; }

button { font: inherit; color: inherit; }

code, kbd, pre, .mono {
  font-family: var(--font-mono);
  font-feature-settings: "zero";
}

.mono { font-size: var(--step--1); letter-spacing: 0.01em; }

.eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 1.1rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--step--2);
  font-weight: 450;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.lead {
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 350;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--ink-2);
  font-variation-settings: "SOFT" 60;
}

.lead strong { font-weight: 500; color: var(--ink); }

.muted { color: var(--muted); }
.small { font-size: var(--step--1); }

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

.narrow { max-width: 34rem; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: fixed;
  top: 0.75rem; left: 0.75rem;
  z-index: 200;
  padding: 0.6rem 1rem;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-200%);
  transition: transform 0.3s var(--ease-out);
}
.skip-link:focus { transform: none; }

.grain {
  position: fixed;
  inset: 0;
  z-index: 150;
  pointer-events: none;
  opacity: 0.07;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .9 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: multiply;
}

:root[data-theme="dark"] .grain { mix-blend-mode: screen; opacity: 0.05; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .grain { mix-blend-mode: screen; opacity: 0.05; } }

.empty {
  padding: 3rem 0;
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-style: italic;
  color: var(--muted);
}

/* View transitions between pages */
@view-transition { navigation: auto; }

::view-transition-old(root) { animation: 260ms var(--ease-in-out) both vt-out; }
::view-transition-new(root) { animation: 420ms var(--ease-out) both vt-in; }

@keyframes vt-out { to { opacity: 0; transform: translateY(-8px); } }
@keyframes vt-in { from { opacity: 0; transform: translateY(14px); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  ::view-transition-group(*), ::view-transition-old(*), ::view-transition-new(*) { animation: none !important; }
}