/* ==========================================================================
   Base / reset
   ========================================================================== */

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

* { margin: 0; }

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

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

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--ink);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-synthesis-weight: none;
  overflow-x: hidden;
}

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

img { height: auto; }

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

button { background: none; border: 0; cursor: pointer; }

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }

/* ---- Headings -------------------------------------------------------- */
/* Sentence case, tight tracking, real weight. Archivo — not Anton — so the
   logo remains the loudest mark on the page. */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: var(--leading-snug);
  letter-spacing: var(--track-tight);
  color: var(--ink);
  text-wrap: balance;
}

h1 { font-size: var(--text-4xl); line-height: var(--leading-tight); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-xl); letter-spacing: var(--track-snug); }
h4 { font-size: var(--text-lg); letter-spacing: var(--track-snug); }

p { text-wrap: pretty; }

ul, ol { padding-left: 1.15em; }

strong, b { font-weight: 650; }

hr { border: 0; border-top: 1px solid var(--hairline); }

/* ---- Focus ----------------------------------------------------------- */
:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 2px;
  border-radius: 3px;
}

/* ---- Selection ------------------------------------------------------- */
::selection {
  background: var(--blue);
  color: #fff;
}

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

.section    { padding-block: var(--section-y); }
.section-lg { padding-block: var(--section-y-lg); }
.section-tight { padding-block: clamp(2rem, 3.5vw, 3rem); }

.text-center { text-align: center; }
.mx-auto { margin-inline: auto; }

.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;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  z-index: 999;
  padding: var(--space-3) var(--space-5);
  background: var(--blue);
  color: #fff;
  border-radius: 0 0 var(--r-md) var(--r-md);
  font-weight: 600;
}
.skip-link:focus { top: 0; text-decoration: none; }