/* ─────────────────────────────────────────────────────────────────────
   RESET + BASE — graffiti (dark product canvas)
   ───────────────────────────────────────────────────────────────────── */

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

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  background: var(--canvas);
  color: var(--ink);
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font-sans);
  font-size: var(--fs-md);
  line-height: var(--lh-normal);
  letter-spacing: var(--tr-snug);
  background: var(--canvas);
  color: var(--ink);
  min-height: 100dvh;
  overflow-x: clip;
  position: relative;
}

/* Faint lavender aurora behind the hero — the only atmospheric light. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(60rem 40rem at 70% -10%, rgba(94,106,210,0.16), transparent 60%),
    radial-gradient(50rem 40rem at 10% 0%, rgba(39,166,68,0.06), transparent 55%);
  pointer-events: none;
  z-index: 0;
}
main { position: relative; z-index: 1; }

img, svg, video, canvas { display: block; max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: none; cursor: pointer; }
a { color: inherit; text-decoration: none; }

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

:focus-visible {
  outline: 2px solid var(--primary-focus);
  outline-offset: 2px;
  border-radius: var(--r-xs);
}

/* ─── Container ─── */
.wrap {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--gutter-x);
}

/* ─── Type primitives ─── */
.mono { font-family: var(--font-mono); font-weight: 400; font-feature-settings: "ss01", "calt"; }
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: var(--tr-eyebrow);
  text-transform: uppercase;
  color: var(--ink-subtle);
}
.smcp {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: var(--fs-cap);
  letter-spacing: var(--tr-wider);
  text-transform: uppercase;
}

/* ─── Section spacing ─── */
section { padding-block: var(--gutter-y); position: relative; }

/* ─── Scroll reveal (toggled by IntersectionObserver) ─── */
[data-io] {
  opacity: 0; transform: translateY(14px);
  transition: opacity var(--dur-slow) var(--easing-out), transform var(--dur-slow) var(--easing-out);
}
[data-io].in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { [data-io] { opacity: 1; transform: none; } }

/* ─── Section divider (thin rule + GitHub link) ─── */
.section-divider {
  display: flex; justify-content: center; align-items: center;
  gap: clamp(0.85rem, 2.5vw, 1.75rem);
  padding-block: clamp(1.5rem, 3vw, 2.5rem);
  flex-wrap: wrap;
}
.section-divider__ornament { color: var(--hairline-strong); font-size: 1rem; line-height: 1; user-select: none; }
.section-divider--inv .section-divider__ornament { color: var(--hairline-strong); }
.section-divider__link {
  display: inline-flex; align-items: center; gap: 0.45em;
  font-family: var(--font-mono); font-size: var(--fs-cap);
  letter-spacing: var(--tr-eyebrow); text-transform: uppercase;
  color: var(--ink-subtle); border-bottom: 1px solid var(--hairline);
  padding-block: 0.4em;
  transition: color var(--dur-fast) var(--easing-out), border-color var(--dur-fast) var(--easing-out);
}
.section-divider__link:hover { color: var(--primary-hover); border-bottom-color: var(--primary); }
.section-divider__link .ext { color: var(--primary-hover); }

/* ─── RTL ─── */
[dir="rtl"] .hero-meta__right { flex-direction: row-reverse; }
[dir="rtl"] .lang-switcher__menu { left: 0; right: auto; }

@media print {
  body::before { display: none; }
  canvas { display: none; }
  section { padding-block: 1rem; page-break-inside: avoid; }
}