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

html {
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background-color: var(--po-white);
  color: var(--po-body);
  overflow-x: hidden;
}

::selection {
  background-color: var(--po-warm-white);
  color: var(--po-charcoal);
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--po-transition-fast);
}

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

/* ==========================================================================
   Editorial Containers & Structure
   ========================================================================== */
.po-container {
  width: 100%;
  max-width: var(--po-max-content);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--po-gutter);
  padding-right: var(--po-gutter);
}

.po-container--wide {
  max-width: var(--po-max-wide);
}

.po-container--reading {
  max-width: var(--po-max-reading);
}

.po-section {
  padding-top: var(--po-section-spacing);
  padding-bottom: var(--po-section-spacing);
  position: relative;
}

.po-section--warm {
  background-color: var(--po-warm-white);
}

.po-section--offwhite {
  background-color: var(--po-off-white);
}

.po-section--stone {
  background-color: var(--po-soft-stone);
}

.po-screen-reader-text {
  border: 0;
  clip: rect(1px, 1px, 1px, 1px);
  clip-path: inset(50%);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
  word-wrap: normal !important;
}

/* Focus styles for WCAG accessibility */
:focus-visible {
  outline: 2px solid var(--po-champagne);
  outline-offset: 3px;
}