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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: var(--fw-regular);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-4);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  letter-spacing: -0.015em;
}

h1 { font-size: var(--fs-hero); font-weight: var(--fw-black); letter-spacing: -0.025em; }
h2 { font-size: var(--fs-5xl); font-weight: var(--fw-bold); letter-spacing: -0.02em; }
h3 { font-size: var(--fs-3xl); }
h4 { font-size: var(--fs-xl); }
h5 { font-size: var(--fs-lg); }
h6 { font-size: var(--fs-base); text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-text-muted); }

p { margin: 0 0 var(--space-4); color: var(--color-text-muted); line-height: var(--lh-relaxed); }
p.lead { font-size: var(--fs-md); color: var(--color-text); }

a {
  color: var(--color-brand);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--color-brand-hover); }

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

button {
  font-family: inherit;
  border: 0;
  background: transparent;
  cursor: pointer;
  color: inherit;
}

ul, ol { padding-left: 1.25rem; margin: 0 0 var(--space-4); color: var(--color-text-muted); }
li { margin-bottom: var(--space-2); }

hr {
  border: 0;
  height: 1px;
  background: var(--color-border);
  margin: var(--space-7) 0;
}

::selection { background: var(--color-brand); color: var(--color-bg); }

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

.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;
}

@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;
  }
}