/* ==========================================================================
   Fonts, reset, element defaults
   ========================================================================== */

/* The reference serves Helvetica Neue under two alias names. Declared here as
   one family with three weights; see INVENTORY.md §7 on licensing. If the OTFs
   are removed the stack in --font-sans takes over cleanly. */
@font-face {
  font-family: "Structra Sans";
  src: url("../fonts/HelveticaNeue-Light.otf") format("opentype");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Structra Sans";
  src: url("../fonts/HelveticaNeue-Roman.otf") format("opentype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Structra Sans";
  src: url("../fonts/HelveticaNeue-Medium.otf") format("opentype");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

/* ---- Reset --------------------------------------------------------------- */

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

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
}

body {
  font-family: var(--font-sans);
  font-weight: var(--fw-light);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--c-fg);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body.is-locked { overflow: hidden; }

[hidden] { display: none !important; }

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

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

fieldset {
  min-width: 0;
  padding: 0;
  border: 0;
}

legend {
  padding: 0;
  display: block;
}

button {
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--fw-light);
  line-height: var(--lh-heading);
  letter-spacing: var(--ls-heading);
  text-wrap: balance;
}

p { text-wrap: pretty; }

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

::selection {
  background: var(--c-primary);
  color: #fff;
}

/* ---- Utilities ----------------------------------------------------------- */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: .5rem;
  left: .5rem;
  z-index: 200;
  padding: .75rem 1.25rem;
  border-radius: var(--radius-pill);
  background: var(--c-fg);
  color: #fff;
  transform: translateY(-200%);
  transition: transform var(--dur-fast) var(--ease);
}
.skip-link:focus { transform: translateY(0); }

.no-scrollbar {
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.no-scrollbar::-webkit-scrollbar { display: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}