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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  font-feature-settings: "cv11", "ss01", "ss03";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color var(--dur-med) var(--ease-out), color var(--dur-med) var(--ease-out);
  overflow-x: hidden;
}

::selection {
  background: var(--accent);
  color: #0b0c0e;
}

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: var(--lh-tight);
  color: var(--text);
}

h1 { font-size: var(--fs-5xl); letter-spacing: -0.035em; font-weight: 640; overflow-wrap: break-word; }
h2 { font-size: var(--fs-2xl); letter-spacing: -0.025em; }
h3 { font-size: var(--fs-lg); }
h4 { font-size: var(--fs-md); }

p {
  margin: 0;
  color: var(--text-muted);
  line-height: var(--lh-relaxed);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}

a:hover { color: var(--accent); }

code, kbd, pre, samp {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

img, svg { display: block; max-width: 100%; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: var(--space-10) 0;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.section {
  padding: var(--space-16) 0;
  position: relative;
}

.section-sm { padding: var(--space-10) 0; }

.section-head {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-10);
  max-width: 720px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}

.muted { color: var(--text-muted); }
.faint { color: var(--text-faint); }
.mono  { font-family: var(--font-mono); }
.accent { color: var(--accent); }

.grid {
  display: grid;
  gap: var(--space-5);
}

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.grid > * { min-width: 0; }

@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 620px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: minmax(0, 1fr); }
  .section { padding: var(--space-10) 0; }
  h1 { letter-spacing: -0.03em; }
  .container, .container-narrow { padding: 0 var(--space-4); }
}

@media (max-width: 440px) {
  h1 { font-size: 2rem; letter-spacing: -0.02em; }
  .container, .container-narrow { padding: 0 var(--space-3); }
}

main { overflow-x: clip; }

.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at top, rgba(0, 0, 0, 0.7), transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at top, rgba(0, 0, 0, 0.7), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.section > .container,
.section > .container-narrow {
  position: relative;
  z-index: 1;
}