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

html {
  scroll-behavior: smooth;
  background: var(--bg);
  color-scheme: light;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter Tight', 'Inter', system-ui, -apple-system, sans-serif;
  font-feature-settings: "ss01", "ss03", "cv11", "liga";
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  line-height: 1.5;
  min-height: 100dvh;
  padding-bottom: 96px;
  overflow-x: hidden;
  position: relative;
}
@media (min-width: 768px) {
  body { padding-bottom: 0; }
}

/* ── HERO BACKGROUND ─────────────────────────────────────────────────
   Light-mode capture sheet: full-header ego video with a paper veil for
   type legibility. No mesh, no debug boxes. */
.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 60% 44%, rgba(106, 163, 255, 0.16), transparent 48%),
    radial-gradient(ellipse at 32% 54%, rgba(250, 251, 248, 0.92), transparent 58%),
    var(--bg);
}
.hero-bg-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 54% 50%;
  filter: grayscale(0.5) brightness(1.13) contrast(0.94) saturate(0.62) hue-rotate(190deg);
  opacity: 0.5;
  mix-blend-mode: multiply;
  z-index: 1;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 62% 50%, rgba(18, 26, 40, 0.16), transparent 36%),
    radial-gradient(ellipse at 72% 52%, rgba(44, 110, 232, 0.16), transparent 42%),
    radial-gradient(ellipse at 50% 52%, transparent 0 45%, rgba(250,251,248,0.42) 78%, rgba(250,251,248,0.82) 100%);
  z-index: 2;
}
.hero-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(250,251,248,0.94) 0%, rgba(250,251,248,0.78) 26%, rgba(250,251,248,0.28) 56%, rgba(250,251,248,0.5) 100%),
    linear-gradient(180deg, rgba(250,251,248,0.72) 0%, transparent 22%, transparent 76%, rgba(250,251,248,0.86) 100%);
  opacity: 0.95;
  z-index: 3;
}

@media (max-width: 860px) {
  .hero-bg-video {
    inset: 0;
    object-position: 58% 50%;
    opacity: 0.4;
  }
}
.hero-content { position: relative; z-index: 2; }

.grid-sheet {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(37,48,68,0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(37,48,68,0.035) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: linear-gradient(to bottom, transparent 0%, #000 25%, #000 75%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 25%, #000 75%, transparent 100%);
}

main, footer { position: relative; z-index: 2; }

.mono {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-feature-settings: "ss01", "ss02";
}
.serif {
  font-family: 'Instrument Serif', 'Newsreader', 'Times New Roman', serif;
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
}

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 96px 24px;
}
@media (min-width: 768px) {
  .wrap { padding: 128px 48px; }
}

::selection { background: var(--accent-strong); color: var(--bg); }

a { color: inherit; }

/* Scroll reveal — applied via reveal.js to elements with .reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 900ms var(--ease-out),
    transform 900ms var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal[data-reveal-delay="1"] { transition-delay: 80ms; }
.reveal[data-reveal-delay="2"] { transition-delay: 160ms; }
.reveal[data-reveal-delay="3"] { transition-delay: 240ms; }
.reveal[data-reveal-delay="4"] { transition-delay: 320ms; }
.reveal[data-reveal-delay="5"] { transition-delay: 400ms; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .ambient::after { animation: none; }
}