/* Base: reset, typography, accessibility helpers (§5, §12, §13) */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + var(--space-4));
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--color-white);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.65;
  font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

[hidden] {
  display: none !important;
}

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

img {
  height: auto;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--font-heading);
  color: var(--color-heading);
  text-wrap: balance;
}

p {
  margin: 0;
  text-wrap: pretty;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

a {
  color: var(--hpr-blue-700);
  text-underline-offset: 0.2em;
  text-decoration-thickness: 1px;
}

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

button {
  cursor: pointer;
}

address {
  font-style: normal;
}

code {
  font-family: ui-monospace, "Cascadia Mono", "Consolas", monospace;
  font-size: 0.85em;
}

:focus-visible {
  outline: 3px solid var(--hpr-blue-600);
  outline-offset: 3px;
  border-radius: 4px;
}

::selection {
  background: var(--hpr-blue-100);
  color: var(--color-heading);
}

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

.skip-link {
  position: fixed;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 100;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-control);
  background: var(--hpr-blue-950);
  color: var(--color-inverse);
  font-weight: var(--weight-semibold);
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform var(--dur-fast) var(--ease-out);
}

.skip-link:focus {
  transform: none;
}

/* Shared type styles */
.section-title {
  font-size: var(--text-h2);
  line-height: 1.1;
  letter-spacing: -0.035em;
  font-weight: var(--weight-bold);
}

.lead {
  font-size: var(--text-lead);
  line-height: 1.55;
  color: var(--color-muted);
  max-width: 34rem;
}

@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;
    scroll-behavior: auto !important;
  }
}