/*
 * Boise Civic Trust — base document styles.
 * Semantic HTML defaults, focus visibility, reduced motion.
 */

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

/* The HTML hidden state must outrank component display rules such as
 * `.btn { display: inline-flex }`. Without this, state-machine controls can
 * remain visibly actionable even while carrying the hidden attribute. */
[hidden] {
  display: none !important;
}

html {
  height: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100%;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-ui);
  font-size: var(--text-md);
  line-height: var(--leading-normal);
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: var(--leading-tight);
  margin: 0 0 var(--space-4);
  color: var(--color-text);
}

h1 {
  font-size: var(--text-xl);
}

h2 {
  font-size: var(--text-lg);
}

h3 {
  font-size: var(--text-md);
}

p {
  margin: 0 0 var(--space-4);
}

/* Default link: a standing 1px hairline. In-copy links receive the
   drawn Civic Gold underline in interactions.css; this is the
   graceful fallback everywhere else. */
a {
  color: var(--color-text);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--color-border-strong);
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-color: var(--color-accent-strong);
}

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

hr {
  border: 0;
  border-top: var(--rule);
  margin: var(--space-6) 0;
}

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

table {
  border-collapse: collapse;
  width: 100%;
}

th,
td {
  text-align: left;
  padding: var(--space-2) var(--space-3);
  border-bottom: var(--rule);
  vertical-align: top;
}

th {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-secondary);
  font-weight: 400;
}

/* Focus visibility is part of institutional credibility. */
:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

/* Selection is a Civic Gold wash. Background only: the text keeps its
   own ink so selection stays readable on light and dark surfaces. */
::selection {
  background: rgba(184, 154, 90, 0.3);
}

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

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  z-index: var(--z-toast);
  background: var(--color-dark-bg);
  color: var(--color-dark-text);
  padding: var(--space-2) var(--space-4);
  transition: top var(--motion-fast) var(--ease-standard);
}

.skip-link:focus {
  top: var(--space-4);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}