/* BASE - Reset, Typography, Layout */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

/* Skip link: visually hidden until focused (inline style clips it; focus makes it visible) */
.skip-link:focus {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  z-index: 10000;
  width: auto;
  height: auto;
  margin: 0;
  padding: var(--space-sm) var(--space-md);
  overflow: visible;
  clip: auto;
  clip-path: none;
  white-space: normal;
  border: 0;
  background: var(--color-heading);
  color: #fff;
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-sm);
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}


body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-body);
  color: var(--color-body);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--color-primary-dark); }
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 2px;
}
button:focus { outline: none; }

ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-heading);
  color: var(--color-heading);
  margin-bottom: var(--space-md);
}
h1 { font-size: var(--h1); }
h2 { font-size: var(--h2); }
h3 { font-size: var(--h3); }
h4 { font-size: var(--h4); }
h5 { font-size: var(--h5); }

p { margin-bottom: var(--space-md); }
p:last-child { margin-bottom: 0; }

blockquote {
  border-left: 3px solid var(--color-primary);
  padding-left: var(--space-lg);
  margin: var(--space-lg) 0;
  font-style: italic;
  color: var(--color-heading);
}

strong { font-weight: var(--font-weight-semibold); }

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

.section {
  padding: var(--space-section) 0;
}
.section--alt { background-color: var(--color-bg-alt); }
.section--dark { background-color: var(--color-bg-footer); color: #fff; }
.section--dark h2, .section--dark h3, .section--dark h4 { color: #fff; }

/* Utilities */
.text-center { text-align: center; }
.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;
}

/* Animations */
.animate-in {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.animate-in.visible {
  opacity: 1;
  transform: translateY(0);
}