/* ==========================================================================
   BASE — reset, element defaults, accessibility helpers
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  font-weight: 600;
  color: var(--color-ink);
}

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

button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }

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

/* ---- Accessibility ---- */
.skip-link {
  position: absolute;
  top: -48px;
  left: var(--space-4);
  background: var(--color-navy-800);
  color: #fff;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: top var(--dur-base) var(--ease-out-expo);
}
.skip-link:focus { top: var(--space-4); }

:focus-visible {
  outline: 2px solid var(--color-teal-500);
  outline-offset: 3px;
  border-radius: 4px;
}

.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;
}

/* ---- Layout helpers ---- */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.visually-hide-until-ready { opacity: 0; }

/* ---- Scroll reveal base state ---- */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slow) var(--ease-out-expo), transform var(--dur-slow) var(--ease-out-expo);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}
[data-reveal="fade"] { transform: translateY(0); }
[data-reveal-delay="1"] { transition-delay: 90ms; }
[data-reveal-delay="2"] { transition-delay: 180ms; }
[data-reveal-delay="3"] { transition-delay: 270ms; }
[data-reveal-delay="4"] { transition-delay: 360ms; }

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; transition: none; }
}