* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, var(--color-primary-soft), transparent 34rem),
    linear-gradient(180deg, var(--color-page), var(--color-surface));
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

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

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.skip-link {
  background: var(--color-ink);
  color: var(--color-page);
  left: var(--space-4);
  padding: var(--space-3) var(--space-4);
  position: absolute;
  top: -100px;
  z-index: 20;
}

.skip-link:focus {
  top: var(--space-4);
}

.site-header,
.breadcrumb,
.hero,
.section-block,
.stats-grid,
.final-cta,
.site-footer {
  width: var(--shell);
  margin-inline: auto;
}

.breadcrumb {
  align-items: center;
  color: var(--color-muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.92rem;
  gap: var(--space-2);
  padding-top: var(--space-5);
}

.breadcrumb a {
  color: var(--color-primary-strong);
  font-weight: 800;
  text-decoration: none;
}

.site-header {
  align-items: center;
  display: flex;
  gap: var(--space-5);
  justify-content: space-between;
  padding: var(--space-4) 0;
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header::before {
  background: var(--color-surface-glass);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  box-shadow: var(--shadow-card);
  content: "";
  inset: var(--space-2) calc((100vw - var(--shell)) / -2);
  position: absolute;
  z-index: -1;
}

.brand {
  align-items: center;
  color: var(--color-ink);
  display: inline-flex;
  font-weight: 800;
  gap: var(--space-2);
  text-decoration: none;
}

.brand-mark {
  align-items: center;
  background: var(--color-primary);
  border-radius: 999px;
  color: var(--color-page);
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 800;
  height: 2.25rem;
  justify-content: center;
  width: 2.25rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: flex-end;
}

.site-nav a {
  border-radius: 999px;
  color: var(--color-muted);
  font-weight: 700;
  padding: var(--space-2) var(--space-3);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
}

h1,
h2,
h3 {
  color: var(--color-ink);
  line-height: 1.1;
  margin: 0;
}

h1 {
  font-size: clamp(2.35rem, 5vw, 4.7rem);
  letter-spacing: 0;
}

h2 {
  font-size: clamp(1.7rem, 3vw, 2.45rem);
  letter-spacing: 0;
}

h3 {
  font-size: 1.08rem;
}

p {
  margin: 0;
}

@media (max-width: 880px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-header::before {
    border-radius: var(--radius-large);
  }
}