/* ==========================================================================
   Base — reset, element defaults, global accessibility fallbacks
   ========================================================================== */

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

* {
  margin: 0;
}

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

body {
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  color: var(--color-text-primary);
  background: var(--color-surface-app);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

[hidden] {
  display: none !important;
}

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

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

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

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

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

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

h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.15;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
  max-width: 75ch;
}

::selection {
  background: var(--color-gold-200);
  color: var(--color-navy-950);
}

/* Focus-visible — two-layer ring, background-aware, never a plain outline */
:focus {
  outline: none;
}

.focusable:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--color-surface-app), 0 0 0 5px var(--color-focus-ring);
  border-radius: var(--radius-sm);
}

.on-dark :focus-visible {
  box-shadow: 0 0 0 2px var(--color-navy-900), 0 0 0 5px var(--color-focus-ring);
}

/* Skip link — first focusable element on every page */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 100;
  padding: var(--space-3) var(--space-5);
  background: var(--color-navy-950);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: top var(--duration-fast) var(--ease-out-custom);
}

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

/* Visually-hidden but screen-reader-accessible */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@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;
  }
}