/* ZEROON.ONE — reset + base */
@font-face {
  font-family: "Inter";
  src: url("../fonts/InterVariable.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Space Grotesk";
  src: url("../fonts/SpaceGrotesk-Variable.woff2") format("woff2-variations");
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: var(--fs-16);
  line-height: 1.55;
  color: var(--text-1);
  background: var(--bg-0);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
body::before {
  content: "";
  position: fixed; inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(139, 92, 246, 0.22), transparent 60%),
    radial-gradient(ellipse 60% 40% at 100% 30%, rgba(59, 130, 246, 0.18), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

h1, h2, h3, h4 {
  font-family: "Space Grotesk", "Inter", system-ui, sans-serif;
  color: var(--text-0);
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin: 0;
  font-weight: 700;
}
h1 { font-size: var(--fs-84); }
h2 { font-size: var(--fs-64); letter-spacing: -0.025em; }
h3 { font-size: var(--fs-32); line-height: 1.2; }
h4 { font-size: var(--fs-20); line-height: 1.3; font-weight: 600; }
p  { margin: 0; }

a { color: var(--text-0); text-decoration: none; transition: color var(--dur-fast) var(--ease-out); }
a:hover { color: var(--brand-violet-2); }

img, svg, video { display: block; max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }

::selection { background: var(--brand-violet); color: #fff; }

:focus-visible {
  outline: 2px solid var(--brand-violet);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--s-6);
  position: relative;
  z-index: 1;
}
.container-narrow { max-width: var(--container-narrow); margin-inline: auto; padding-inline: var(--s-6); }

.section {
  padding-block: clamp(4rem, 10vw, 8rem);
  position: relative;
  z-index: 1;
}

.eyebrow {
  display: inline-block;
  font-family: "Space Grotesk", sans-serif;
  font-size: var(--fs-14);
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--brand-violet-2);
  margin-bottom: var(--s-4);
}

.text-grad {
  background: var(--gradient-1);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead { font-size: var(--fs-18); color: var(--text-1); max-width: 58ch; }

.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;
}

/* scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: none; }