/* Base: fonts, reset, layout primitives, typography, buttons, reveal. Values come from tokens.css. */
@font-face {
  font-family: "Sora";
  src: url("../fonts/sora-latin-wght.woff2") format("woff2");
  font-weight: 100 800;
  font-display: swap;
}
@font-face {
  font-family: "Inter";
  src: url("../fonts/inter-latin-wght.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h-scrolled); -webkit-text-size-adjust: 100%; }
body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul { list-style: none; padding: 0; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: var(--lh-heading); letter-spacing: var(--tracking-tight); }
:focus-visible { outline: var(--line) solid var(--c-focus); outline-offset: 3px; border-radius: var(--radius-sm); }
::selection { background: var(--c-primary); color: var(--c-on-primary); }

.skip-link {
  position: absolute; left: var(--sp-4); top: calc(-1 * var(--header-h)); z-index: 100;
  padding: var(--sp-2) var(--sp-4); border-radius: var(--radius-sm);
  background: var(--c-primary); color: var(--c-on-primary);
}
.skip-link:focus { top: var(--sp-4); }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---- Layout ---- */
.container { width: min(100% - 2 * var(--gutter), var(--container)); margin-inline: auto; }
.section { position: relative; padding-block: var(--section-pad); }
.section--alt { background-color: var(--c-bg-alt); }
.section__head { max-width: var(--container-narrow); margin-bottom: var(--sp-7); }
.section__title { font-size: var(--fs-h2); }
.section__lead { margin-top: var(--sp-4); font-size: var(--fs-lead); color: var(--c-text-muted); }
.eyebrow {
  display: inline-flex; align-items: center; gap: var(--sp-2); margin-bottom: var(--sp-4);
  font-size: var(--fs-eyebrow); font-weight: 600; letter-spacing: var(--tracking-eyebrow); text-transform: uppercase;
  color: var(--c-accent);
}
.eyebrow::before { content: ""; width: var(--sp-6); height: var(--line); background: currentColor; }
.text-gradient {
  background-image: linear-gradient(90deg, var(--c-grad-1), var(--c-grad-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---- Icons ---- */
.icon { width: var(--icon); height: var(--icon); flex: none; }
.icon--sm { width: var(--icon-sm); height: var(--icon-sm); }
.icon--lg { width: var(--icon-lg); height: var(--icon-lg); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-5); border: var(--border-w) solid transparent; border-radius: var(--radius-pill);
  font-weight: 600;
  transition: transform var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn--primary { background: var(--c-primary); color: var(--c-on-primary); }
.btn--primary:hover { background: var(--c-primary-hover); }
.btn--accent { background: var(--c-accent); color: var(--c-on-accent); }
.btn--ghost { border-color: var(--c-border); color: var(--c-text); }
.btn--ghost:hover { border-color: var(--c-accent); color: var(--c-accent); }

/* ---- Reveal on scroll: hidden only while html.js is set, so no-JS visitors see everything ---- */
.js [data-reveal] {
  opacity: 0; transform: translateY(var(--reveal-shift));
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
  transition-delay: calc(var(--d, 0) * var(--reveal-stagger));
}
.js [data-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: 0s !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
}