/* Base layout and the motion primitives. Page-specific styles go in site.css. */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 var(--t-m)/1.55 var(--font-text);
  text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}
img, video, canvas, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-underline-offset: 0.18em; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.skip { position: absolute; left: var(--gutter); top: -100px; z-index: 100; background: var(--ink); color: var(--paper); padding: var(--s-3) var(--s-4); }
.skip:focus { top: var(--s-3); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

h1, h2, h3 { font-family: var(--font-display); font-weight: 400; line-height: 1.02; letter-spacing: -0.02em; margin: 0; text-wrap: balance; }
p { margin: 0 0 var(--s-4); max-width: var(--measure); text-wrap: pretty; }
.wrap { padding-inline: var(--gutter); max-width: 1440px; margin-inline: auto; }
.eyebrow { font-size: var(--t-xs); letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2); }

/* Header: shares a view-transition-name so it stays put across pages. */
.site-header { position: fixed; inset: 0 0 auto; z-index: 50; display: flex; justify-content: space-between; align-items: center; padding: var(--s-4) var(--gutter); view-transition-name: site-header; color: var(--ink); }
html[data-tema="dark"] .site-header { color: var(--on-night); }
.site-header nav { display: flex; gap: var(--s-5); font-size: var(--t-s); }
.site-header a { text-decoration: none; padding: var(--s-2) 0; min-height: 44px; display: inline-flex; align-items: center; }
.site-header a[aria-current="page"] { text-decoration: underline; }
.logo { font-family: var(--font-display); font-size: var(--t-l); view-transition-name: logo; }

/* Masked lines: the only way display type enters. Markup: <span class="line"><span>Words</span></span> */
.line { display: block; overflow: clip; overflow-clip-margin: 0.08em; padding-bottom: 0.08em; }
.line > span, .rise { display: inline-block; }
html.js:not(.reduced) .line > span, html.js:not(.reduced) .rise { transform: translateY(140%); }
html.js:not(.reduced) #hero .line > span { transform: none; } /* the first viewport is complete before any script runs */

/* Pinned scene: tall wrapper + sticky stage. Wrapper height sets the scrub length. */
.pin { position: relative; }
.pin > .stage { position: sticky; top: 0; height: 100vh; height: 100svh; overflow: clip; }

/* Buttons and links: springs from springs.css, never ease/ease-in-out. */
.btn { display: inline-flex; align-items: center; gap: var(--s-3); min-height: 48px; padding: 0 var(--s-5); border-radius: 999px; background: var(--accent); color: #fff; text-decoration: none; font-weight: 500; transition: transform var(--spring-snappy-dur) var(--spring-snappy), background-color 0.15s linear; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0) scale(0.98); }

@view-transition { navigation: auto; }
::view-transition-old(root), ::view-transition-new(root) { animation-duration: var(--spring-default-dur); animation-timing-function: var(--spring-default); }
::view-transition-old(root) { animation-name: vt-out; }
::view-transition-new(root) { animation-name: vt-in; }
@keyframes vt-out { to { transform: translateY(-4vh); clip-path: inset(0 0 100% 0); } }
@keyframes vt-in { from { transform: translateY(6vh); clip-path: inset(100% 0 0 0); } }

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