/* ============================================================
   ROCKWOOD — Base / Reset / Primitives
   ============================================================ */

*, *::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; }
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--text-mid);
  background: var(--space-800);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100vh;
}

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; }
ul { list-style: none; padding: 0; }

::selection { background: var(--signal); color: var(--space-900); }

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

/* ---- Typography primitives ------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--text-hi);
  line-height: 1.02;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.display {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 0.98;
}

/* Instrument-readout label — the recurring "calibration" voice */
.readout {
  font-family: var(--font-mono);
  font-size: var(--fs-readout);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--text-lo);
  font-weight: 500;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--signal);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}

.metallic {
  background: var(--chrome-grad);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

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

.lede { max-width: var(--maxw-text); color: var(--text-mid); font-size: var(--fs-lead); }

/* ---- Buttons --------------------------------------------- */
.btn {
  --btn-fg: var(--space-900);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.85em 1.5em;
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  letter-spacing: 0.06em;
  font-weight: 500;
  transition: transform var(--dur-fast) var(--ease-precise),
              box-shadow var(--dur-fast) var(--ease-precise),
              background-position var(--dur-slow) var(--ease-cinematic);
  will-change: transform;
}
.btn--metal {
  color: var(--btn-fg);
  background: var(--chrome-grad);
  background-size: 200% 200%;
  background-position: 0% 0%;
}
.btn--metal:hover {
  background-position: 100% 100%;
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -12px rgba(0,0,0,0.8), var(--glow-signal);
}
.btn--ghost {
  color: var(--text-hi);
  border: 1px solid var(--hairline-strong);
  background: rgba(255,255,255,0.02);
}
.btn--ghost:hover {
  border-color: var(--signal);
  color: var(--signal);
  transform: translateY(-2px);
}
.btn__arrow { transition: transform var(--dur-fast) var(--ease-precise); }
.btn:hover .btn__arrow { transform: translate(3px, -3px); }

/* ---- Reticle / calibration corner marks ------------------ */
.reticle { position: relative; }
.reticle::before,
.reticle::after {
  content: "";
  position: absolute;
  width: 10px; height: 10px;
  border-color: var(--hairline-strong);
  border-style: solid;
  pointer-events: none;
}
.reticle::before { top: 0; left: 0; border-width: 1px 0 0 1px; }
.reticle::after  { bottom: 0; right: 0; border-width: 0 1px 1px 0; }

/* ---- Utility --------------------------------------------- */
.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;
}
.skip-link {
  position: fixed; top: 8px; left: 8px; z-index: var(--z-overlay);
  background: var(--signal); color: var(--space-900);
  padding: 0.5em 1em; border-radius: var(--r-sm);
  transform: translateY(-150%);
  transition: transform var(--dur-fast);
  font-family: var(--font-mono); font-size: var(--fs-sm);
}
.skip-link:focus { transform: translateY(0); }

[hidden] { display: none !important; }