/**
 * Walters Construction FL — Base Styles
 *
 * CSS reset and foundational element styles.
 * Must be loaded after variables.css.
 */

/* Box model reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Root defaults */
html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family-body);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Skip navigation — visually hidden until focused */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  border-radius: 0 0 4px 4px;
  text-decoration: none;
  z-index: 9999;
}

.skip-link:focus {
  top: 0;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-heading-primary);
}

h3, h4 {
  color: var(--color-heading-secondary);
}

/* On dark-background sections, headings automatically use the light variant.
   Add class="section--dark" to any <section> with a dark background. */
.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4,
.section--dark h5,
.section--dark h6 {
  color: var(--color-heading-on-dark);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

/* Body text */
p {
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
}

/* Links */
a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-primary-light);
}

/* Images */
img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

/* Form elements */
input,
button,
textarea,
select {
  font: inherit;
}

/* Lists */
ul, ol {
  list-style: none;
}

/* Horizontal rule */
hr {
  border: none;
  border-top: 1px solid var(--color-border-light);
  margin: var(--space-8) 0;
}

/* Utility: visually hidden but accessible to screen readers */
.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;
}

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