/* =========================================================
   Base — reset + typography + layout primitives
   ========================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 16px);
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--type-base);
  line-height: var(--leading-relaxed);
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
  background: var(--bg-canvas);
  font-synthesis: none;
  font-feature-settings: "ss01", "cv11";
  transition: background-color var(--dur-normal) var(--ease-standard),
              color var(--dur-normal) var(--ease-standard);
}

img, picture, video, svg { display: block; max-width: 100%; height: auto; }

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
  letter-spacing: inherit;
}

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

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

/* ----- Typography ----- */
h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-display);
  color: var(--text-primary);
}

h1 { font-size: var(--type-5xl); font-weight: 700; }
h2 { font-size: var(--type-4xl); font-weight: 700; }
h3 { font-size: var(--type-3xl); }
h4 { font-size: var(--type-2xl); letter-spacing: var(--tracking-tighter); }
h5 { font-size: var(--type-xl); letter-spacing: var(--tracking-tight); }
h6 { font-size: var(--type-lg); letter-spacing: var(--tracking-tight); }

p { margin: 0; }
.lead {
  font-size: var(--type-xl);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-tighter);
  color: var(--text-secondary);
  font-weight: 400;
}

.eyebrow {
  font-size: var(--type-sm);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--accent);
}

/* ----- Layout primitives ----- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

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

.section {
  padding-block: clamp(64px, 9vw, 128px);
}

.stack > * + * { margin-top: var(--stack-gap, var(--space-4)); }
.cluster {
  display: flex; flex-wrap: wrap;
  gap: var(--cluster-gap, var(--space-3));
  align-items: center;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}