/* Base: reset, typography, layout primitives */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 24px); }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
body.no-scroll { overflow: hidden; }
img, svg, video { display: block; max-width: 100%; }
h1, h2, h3, h4 { margin: 0 0 0.5em; color: var(--color-ink); font-family: var(--font-display); line-height: var(--lh-tight); letter-spacing: var(--tracking-tight); text-wrap: balance; }
h1 { font-size: var(--fs-h1); font-weight: 800; }
h2 { font-size: var(--fs-h2); font-weight: 750; }
h3 { font-size: var(--fs-h3); font-weight: 650; letter-spacing: -0.015em; line-height: 1.25; }
p { margin: 0 0 1em; text-wrap: pretty; }
a { color: var(--color-accent-text); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--color-accent-strong); }
ul[role="list"], ol[role="list"] { list-style: none; margin: 0; padding: 0; }
button, input, textarea { font: inherit; color: inherit; }
::selection { background: var(--color-brand); color: #fff; }
:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 3px; border-radius: 6px; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.narrow { max-width: var(--container-narrow); }
.section { position: relative; padding-block: var(--section-y); }
.section-tight { padding-block: calc(var(--section-y) * 0.55); }
.section-alt { background: var(--color-bg-alt); }
.page-top { padding-top: calc(var(--section-y) * 0.7); }
.spacer { height: clamp(3rem, 6vw, 5rem); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  margin-bottom: 1rem; font-size: var(--fs-xs); font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent-text);
}
.eyebrow::before { content: ""; width: 18px; height: 2px; border-radius: 2px; background: var(--gradient-brand); }
.lead { font-size: var(--fs-lg); color: var(--color-muted); max-width: 64ch; }
.note { margin-top: 1.75rem; font-size: var(--fs-sm); color: var(--color-muted); text-align: center; }
.text-gradient { background: var(--gradient-text); -webkit-background-clip: text; background-clip: text; color: transparent; }

.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: 1rem; top: -100px; z-index: 200; padding: 0.6rem 1rem; background: var(--color-ink); color: #fff; border-radius: var(--radius-sm); }
.skip-link:focus { top: 1rem; }

.icon { width: 1.5rem; height: 1.5rem; flex: none; }
.icon-sm { width: 1.1rem; height: 1.1rem; }
.icon-xs { width: 0.9rem; height: 0.9rem; }

.split { display: grid; gap: clamp(2.5rem, 6vw, 5rem); align-items: center; }
@media (min-width: 960px) {
  .split { grid-template-columns: 1fr 1fr; }
  .split-wide { grid-template-columns: 0.85fr 1.15fr; }
}