/* ==========================================================================
   Base: reset, typography, layout primitives, reveal animation
   ========================================================================== */

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

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

body {
  margin: 0;
  font-family: var(--ff-body);
  font-size: var(--fs-body);
  line-height: 1.5;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--ff-head);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.01em;
}
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); font-weight: 700; }

p { margin: 0; }

a { color: inherit; }

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

button { cursor: pointer; }

:focus-visible {
  outline: 3px solid var(--c-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* :where() keeps specificity at 0 so component classes can set margin/padding */
:where(ul[role="list"]) { list-style: none; margin: 0; padding: 0; }

.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { margin-block: var(--section-gap); }
.section--soft {
  background: var(--c-bg-soft);
  margin-block: 0;
  padding-block: var(--section-gap);
}

.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(--s-2);
  top: -100px;
  z-index: 200;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: var(--s-1) var(--s-2);
  background: var(--c-primary-dark);
  color: #fff;
  border-radius: var(--r-sm);
}
.skip-link:focus { top: var(--s-1); }

/* ---- Scroll reveal (Rule 3) ------------------------------------------- */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .55s ease, transform .55s var(--ease-out);
}
.fade-up.in { opacity: 1; transform: none; }

.stagger {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .5s ease, transform .5s var(--ease-out);
}
.stagger.in { opacity: 1; transform: none; }

/* No JS → never hide content */
.no-js .fade-up,
.no-js .stagger { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fade-up, .stagger {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}