/* ============================================================
   ANOVA PROJECTS — Base: reset, typography, layout primitives
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 24px);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  letter-spacing: var(--tracking-body);
  font-weight: var(--fw-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Ambient ground: a single, very restrained field wash behind everything. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(1100px 620px at 78% -8%, rgba(34, 208, 238, .07), transparent 62%),
    radial-gradient(820px 520px at 4% 12%, rgba(58, 70, 86, .18), transparent 60%);
}

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

/* ---------- Typography ---------- */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--fw-light);
  color: var(--text-strong);
  letter-spacing: var(--tracking-h);
  line-height: var(--lh-snug);
  margin: 0 0 var(--s-4);
  text-wrap: balance;
}

h1 { font-size: var(--fs-h1); line-height: var(--lh-tight); letter-spacing: var(--tracking-display); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); font-weight: var(--fw-medium); letter-spacing: -0.01em; }
h4 { font-size: var(--fs-body); font-weight: var(--fw-medium); letter-spacing: -0.005em; }

p { margin: 0 0 var(--s-4); }
p:last-child { margin-bottom: 0; }

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

strong, b { font-weight: var(--fw-semi); color: var(--text-strong); }

small { font-size: var(--fs-sm); }

ul, ol { margin: 0 0 var(--s-4); padding-left: 1.15em; }
li { margin-bottom: var(--s-2); }
li:last-child { margin-bottom: 0; }

hr {
  border: 0;
  height: 1px;
  background: var(--hairline);
  margin: var(--s-8) 0;
}

::selection { background: rgba(34, 208, 238, .28); color: var(--text-strong); }

/* ---------- Text roles ---------- */

.display {
  font-family: var(--font-display);
  font-size: var(--fs-display);
  font-weight: var(--fw-light);
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-display);
  color: var(--text-strong);
  margin: 0 0 var(--s-5);
  text-wrap: balance;
}

.lead {
  font-size: var(--fs-lead);
  line-height: var(--lh-loose);
  color: var(--text-2);
  max-width: 56ch;
  text-wrap: pretty;
}

.muted   { color: var(--text-3); }
.silver  { color: var(--text-2); }
.accent  { color: var(--accent); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  font-weight: var(--fw-semi);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 var(--s-4);
}
.eyebrow::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: var(--glow-dot);
  flex: none;
}
.eyebrow--silver { color: var(--text-3); }
.eyebrow--silver::before { background: var(--text-3); box-shadow: none; }

.label {
  font-family: var(--font-body);
  font-size: var(--fs-caption);
  font-weight: var(--fw-semi);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--text-4);
}

.mono-num {
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

/* ---------- Layout ---------- */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--wide { max-width: var(--container-wide); }
.container--text { max-width: var(--container-text); }

.section {
  position: relative;
  z-index: var(--z-base);
  padding-block: var(--section-y);
}
.section--lg  { padding-block: var(--section-y-lg); }
.section--tight { padding-block: clamp(48px, 6vw, 80px); }
.section--well { background: var(--bg-well); }

/* Hairline that separates major bands, fading at the edges */
.section--ruled { border-top: 1px solid transparent; }
.section--ruled::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--hairline) 18%, var(--hairline) 82%, transparent);
}

.section-head {
  display: grid;
  gap: var(--s-5);
  margin-bottom: clamp(36px, 5vw, 64px);
}
@media (min-width: 900px) {
  .section-head--split {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: var(--s-8);
  }
}
.section-head h2 { margin-bottom: var(--s-4); }
.section-head p:last-child { margin-bottom: 0; }

.stack   { display: grid; gap: var(--s-4); }
.stack-5 { display: grid; gap: var(--s-5); }
.stack-6 { display: grid; gap: var(--s-6); }
.stack-8 { display: grid; gap: var(--s-8); }

.grid { display: grid; gap: var(--s-5); }
@media (min-width: 720px)  { .grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 900px)  { .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 720px)  { .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1080px) { .grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); } }

.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-3);
}

.flow > * + * { margin-top: var(--s-4); }

/* ---------- Accessibility ---------- */

.skip-link {
  position: absolute;
  left: var(--s-4);
  top: var(--s-4);
  z-index: var(--z-toast);
  transform: translateY(-200%);
  background: var(--bg-surface-2);
  color: var(--text-strong);
  border: 1px solid var(--border-accent);
  border-radius: var(--r-sm);
  padding: var(--s-3) var(--s-4);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  transition: transform var(--dur-2) var(--ease);
}
.skip-link:focus-visible { transform: translateY(0); }

:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--r-xs);
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

[hidden] { display: none !important; }

/* ---------- Motion primitives (asset map: REVEAL) ---------- */

/* Content is visible by default and only hidden once JS has confirmed it
   will reveal it again (html.js-reveal). Nothing can strand a section at
   opacity 0 — not a script error, not a blocked file, not a dead observer. */
.reveal {
  transition:
    opacity var(--dur-4) var(--ease),
    transform var(--dur-4) var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
html.js-reveal .reveal {
  opacity: 0;
  transform: translateY(14px);
  will-change: opacity, transform;
}
html.js-reveal .reveal.is-in {
  opacity: 1;
  transform: none;
  will-change: auto;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js-reveal .reveal,
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  body::before, .field-lines, .site-nav, .site-footer__field { display: none !important; }
  body { background: #fff; color: #000; }
}