/* ==========================================================================
   Base: reset, typography, global primitives
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--color-canvas);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--leading-normal);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4, p, figure {
  margin: 0;
}

table {
  border-collapse: collapse;
}

hr {
  border: none;
  border-top: 0.0625rem solid var(--color-border);
  margin: 0;
}

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

/* Visible keyboard focus everywhere, mouse users don't see the ring */
:focus-visible {
  outline: 0.125rem solid var(--color-accent-ink);
  outline-offset: 0.125rem;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---- Type scale utilities ---- */

.text-display {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-display);
  line-height: var(--leading-tight);
  letter-spacing: -0.01em;
}

h1, .text-h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-h1);
  line-height: var(--leading-tight);
  letter-spacing: -0.01em;
  color: var(--color-ink);
}

h2, .text-h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-h2);
  line-height: var(--leading-snug);
  color: var(--color-ink);
}

h3, .text-h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-h3);
  line-height: var(--leading-snug);
  color: var(--color-ink);
}

.text-muted {
  color: var(--color-ink-muted);
}

.text-small {
  font-size: var(--text-small);
}

.text-mono {
  font-family: var(--font-mono);
  font-size: 0.875em;
  letter-spacing: -0.01em;
}

/* Eyebrow label: small uppercase caption preceded by a node dot.
   The dot is the signature motif in miniature — every section of the
   product is "a point in the knowledge graph". */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}

.eyebrow::before {
  content: "";
  width: 0.375rem;
  height: 0.375rem;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  box-shadow: 0 0 0 0.1875rem var(--color-accent-soft);
}

/* ---- Node-mesh signature graphic ----
   Built from radial-gradient dots + linear-gradient hairlines, layered as
   background images. Used at large scale in auth hero panels and small
   scale as ambient texture behind dashboard headers. */
.node-mesh {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.9;
  background-image:
    radial-gradient(circle at 18% 24%, rgba(var(--mesh-dot-rgb),0.9) 0 0.1875rem, transparent 0.25rem),
    radial-gradient(circle at 46% 12%, rgba(var(--mesh-dot-rgb),0.55) 0 0.15625rem, transparent 0.21875rem),
    radial-gradient(circle at 72% 30%, rgba(var(--mesh-dot-rgb),0.8) 0 0.1875rem, transparent 0.25rem),
    radial-gradient(circle at 85% 60%, rgba(var(--mesh-dot-rgb),0.5) 0 0.125rem, transparent 0.1875rem),
    radial-gradient(circle at 60% 70%, rgba(var(--mesh-dot-rgb),0.85) 0 0.15625rem, transparent 0.21875rem),
    radial-gradient(circle at 30% 62%, rgba(var(--mesh-dot-rgb),0.45) 0 0.125rem, transparent 0.1875rem),
    radial-gradient(circle at 12% 82%, rgba(var(--mesh-dot-rgb),0.7) 0 0.15625rem, transparent 0.21875rem),
    linear-gradient(200deg, transparent 49.5%, rgba(var(--mesh-dot-rgb),0.35) 50%, transparent 50.5%),
    linear-gradient(155deg, transparent 49.5%, rgba(var(--mesh-dot-rgb),0.28) 50%, transparent 50.5%),
    linear-gradient(240deg, transparent 49.7%, rgba(var(--mesh-dot-rgb),0.22) 50%, transparent 50.3%);
  background-size: 100% 100%;
  animation: mesh-float 14s var(--ease-standard) infinite alternate;
}

@keyframes mesh-float {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(-1%, 1%, 0) scale(1.03); }
}

@media (prefers-reduced-motion: reduce) {
  .node-mesh {
    animation: none;
  }
}