/* VizArchs — base styles: reset, document defaults, typography rules,
   layout primitives, reveal scaffolding, reduced-motion overrides. */

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

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

body,
h1, h2, h3, h4, h5, h6,
p, blockquote, dl, dd, figure, pre,
ul, ol { margin: 0; }

ul[role="list"],
ol[role="list"] { list-style: none; padding: 0; }

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

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

button {
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

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

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

::selection {
  background: var(--green-primary);
  color: var(--text-on-green);
}

/* ============= Document defaults ============= */
html {
  scroll-behavior: smooth;
  background: var(--bg-base);
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text-on-dark);
  background: var(--bg-base);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.is-locked { overflow: hidden; }

/* Skip link — visually hidden until focused */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--sp-4);
  z-index: 1000;
  background: var(--green-primary);
  color: var(--text-on-green);
  padding: var(--sp-3) var(--sp-5);
  font-family: var(--font-display);
  font-size: var(--fs-small);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  transition: top var(--dur-base) var(--ease-out-quint);
}
.skip-link:focus-visible { top: var(--sp-4); }

/* ============= Typography ============= */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  line-height: var(--lh-heading);
}

h1 { font-size: var(--fs-h1); line-height: var(--lh-display); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); font-weight: 600; }

p { line-height: var(--lh-body); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-eyebrow);
  color: var(--green-primary);
  margin: 0;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--green-primary);
}
.section--paper .eyebrow,
[data-surface="paper"] .eyebrow { color: var(--green-deep); }
.section--paper .eyebrow::before,
[data-surface="paper"] .eyebrow::before { background: var(--green-deep); }

.text-muted-dark  { color: var(--text-muted-dark);  }
.text-muted-light { color: var(--text-muted-light); }

.tabular { font-variant-numeric: tabular-nums; }

/* ============= Layout primitives ============= */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.stack > * + * { margin-block-start: var(--sp-5); }
.stack-sm > * + * { margin-block-start: var(--sp-3); }
.stack-lg > * + * { margin-block-start: var(--sp-8); }

.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  align-items: center;
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
}

.section { padding-block: var(--section-y); }
.section--dark {
  background-color: var(--bg-base);
  background-image: var(--texture-noise);
  color: var(--text-on-dark);
}
.section--paper {
  background-color: var(--paper);
  background-image: var(--texture-grid);
  background-size: 48px 48px;
  color: var(--text-on-light);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  flex-wrap: wrap;
  gap: var(--sp-5);
  margin-block-end: var(--sp-8);
}

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

/* ============= Reveal scaffolding ============= */
[data-reveal] {
  opacity: 0;
  transform: translateY(32px);
  transition:
    opacity var(--dur-slow) var(--ease-out-quint),
    transform var(--dur-slow) var(--ease-out-quint);
  will-change: opacity, transform;
}
[data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

/* page enter — body.is-loaded triggers a one-shot fade-rise on first-fold items */
body.is-loading [data-page-enter] { opacity: 0; transform: translateY(24px); }
body.is-loaded  [data-page-enter] {
  opacity: 1;
  transform: none;
  transition:
    opacity var(--dur-reveal) var(--ease-out-quint),
    transform var(--dur-reveal) var(--ease-out-quint);
  transition-delay: calc(var(--page-enter-index, 0) * 80ms);
}

/* ============= Reduced motion ============= */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: var(--dur-fast) !important;
    animation-iteration-count: 1 !important;
    transition-duration: var(--dur-fast) !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { transform: none; }
  .marquee__track { animation: none !important; }
  .hero__slide { animation: none !important; }
  .reel-slot__rec-dot { animation: none !important; }
}